Patent Library
Search by patent number, inventor name or keyword.
| Patent No. | Title | Issue Date | Inventors | Abstract |
|---|---|---|---|---|
| 959,946 | Composition Studding | 5/31/1910 | Knode Oliver M | Composition Studding |
| 1,029,328 | Method Of Manufacturing Plaster-Board | 6/11/1912 | Utzman Clarence W | Method Of Manufacturing Plaster-Board |
| 1,034,746 | Plaster-Board | 8/6/1912 | Utzman Clarence W | Plaster-Board |
| 1,116,669 | Plaster-Block-Molding Machine | 11/10/1914 | Birdsey Charles R; Henning Charles F | Plaster-Block-Molding Machine |
| 1,174,206 | Plaster Floor Construction | 3/7/1916 | Utzman Clarence W | Plaster Floor Construction |
| 1,184,951 | Method Of Making Cores For Reinforced Concrete Or Plaster Floor Construction | 5/30/1916 | Henning Charles F | Method Of Making Cores For Reinforced Concrete Or Plaster Floor Construction |
| 1,187,145 | Roofing | 6/13/1916 | Henning Charles F | Roofing |
| 1,189,748 | Centrifugal Dividing Mechanism | 7/4/1916 | Southard George Lee | Centrifugal Dividing Mechanism |
| 1,208,557 | Machine For Automatically Manipulating The Core-Poles Of Molding-Machines | 12/12/1916 | Henning Charles F | Machine For Automatically Manipulating The Core-Poles Of Molding-Machines |
| 1,218,999 | Core For Reinforced Concrete Or Plaster Floor Construction | 3/13/1917 | Henning Charles F | Core For Reinforced Concrete Or Plaster Floor Construction |
| 1,312,287 | Floor Construction | 8/5/1919 | Clarence W. Utzman, Oe Illinois | Floor Construction |
| 1,313,500 | Floor Construction Or The Like | 8/19/1919 | William L, Nies Of Chicago Illinois | Floor Construction Or The Like |
| 1,330,413 | Machine For Making Plaster-Board Or The Like | 2/10/1920 | Utzman Clarence W | Machine For Making Plaster-Board Or The Like |
| 1,354,509 | Means For Crating Plaster-Board And The Like | 10/5/1920 | Nold John H. | Means For Crating Plaster-Board And The Like |
| 1,356,940 | Building-Tile | 10/26/1920 | Payne Caleb | Building-Tile |
| 1,358,508 | Plaster-Board | 11/9/1920 | Birdsey Charles R. | Plaster-Board |
| 1,370,581 | Process Of Aging Calcined Gypsum Products And Product Thereof | 3/8/1921 | Brookby Harry Esmond | Process Of Aging Calcined Gypsum Products And Product Thereof |
| 1,383,249 | Plaster-Board | 6/28/1921 | Utzman Clarence W. | Plaster-Board |
| 1,383,254 | Plaster-Board | 6/28/1921 | Birdsey Charles R. | Plaster-Board |
| 1,383,255 | Machine For And Method Of Making Plaster-Board | 6/28/1921 | Birdsey Charles R. | Machine For And Method Of Making Plaster-Board |
| 1,384,298 | Plaster-Board | 7/12/1921 | Birdsey Charles R. | Plaster-Board |
| 1,395,031 | Plaster-Board | 10/25/1921 | Birdsey Charles R. | Plaster-Board |
| 1,395,032 | Plaster-Board | 10/25/1921 | Birdsey Charles R. | Plaster-Board |
| 1,406,967 | Plaster Board | 2/21/1922 | Birdsey Charles R. | Plaster Board |
| 1,412,203 | Method Of Calcining Gypsum Rock And The Like | 4/11/1922 | Birdsey Charles R. | Method Of Calcining Gypsum Rock And The Like |
| 1,427,939 | Plaster Board | 9/5/1922 | Birdsey Charles R. | Plaster Board |
| 1,428,623 | Load-Supporting Building Tile | 9/12/1922 | Birdsey Charles R. | Load-Supporting Building Tile |
| 1,428,624 | Plaster Board | 9/12/1922 | Birdsey Charles R. | Plaster Board |
| 1,428,827 | Composition Wall Board And Method Of Making The Same | 9/12/1922 | Brookby Harry E. | Composition Wall Board And Method Of Making The Same |
| 1,487,370 | Plaster Lath | 3/18/1924 | Birdsey Charles R | Plaster Lath |
| 1,489,693 | Machine And Method For Making Hardened-Edged Plaster Board | 4/8/1924 | Brookby Harry E | Machine And Method For Making Hardened-Edged Plaster Board |
| 1,514,827 | Apparatus For Constructing Plaster Board | 11/11/1924 | Birdsey Charles R | Apparatus For Constructing Plaster Board |
| 1,515,380 | Plaster Board | 11/11/1924 | Birdsey Charles R. | Plaster Board |
| 1,518,243 | Apparatus For Binding The Edges Of Plaster Wall Board | 12/9/1924 | Birdsey Charles R | Apparatus For Binding The Edges Of Plaster Wall Board |
| 1,525,715 | Plaster Board | 2/10/1925 | Birdsey Charles B. | Plaster Board |
| 1,526,307 | Wall Board | 2/10/1925 | Birdsey Charles R | Wall Board |
| 1,536,326 | Process For The Manufacture Of Dilute Solutions Of Magnesium Sulphate | 5/5/1925 | Brookby Harry E | Process For The Manufacture Of Dilute Solutions Of Magnesium Sulphate |
| 1,540,045 | Bound-Edge Plaster Wall Board | 6/2/1925 | Utzman Clarence W | Bound-Edge Plaster Wall Board |
| 1,558,459 | Machine And Method Of Making Plaster Wall Board | 10/27/1925 | Birdsey Charles R | Machine And Method Of Making Plaster Wall Board |
| 1,559,134 | Wall Construction | 10/27/1925 | Utzman Clarence W | Wall Construction |
| 1,561,635 | Plaster Board | 11/17/1925 | Birdsey Charles R | Plaster Board |
| 1,576,482 | Roof | 3/9/1926 | Lehn George P | Roof |
| 1,589,787 | Method Of Laying Glass Sheets On Worktables For Grinding And Polishing | 6/22/1926 | Butler John W | Method Of Laying Glass Sheets On Worktables For Grinding And Polishing |
| 1,604,707 | Plaster Board | 10/26/1926 | Mehlhope Clarence E | Plaster Board |
| 1,606,722 | Surfacing Material | 11/9/1926 | Roos Carlisle K | Surfacing Material |
| 1,615,815 | Apparatus For Making Plastic Building Members | 1/25/1927 | Birdsey Charles R | Apparatus For Making Plastic Building Members |
| 1,620,067 | Cellular Plaster | 3/8/1927 | Brookby Harry E; King George D | Cellular Plaster |
| 1,627,952 | Plastic Cementitious Material | 5/10/1927 | Brookby Harry E | Plastic Cementitious Material |
| 1,631,108 | Bound-Edge Plaster Wall Board | 5/31/1927 | Utzman Clarence W. | Bound-Edge Plaster Wall Board |
| 1,638,001 | Light-Weight Gypsum Product | 8/2/1927 | Brookby Harry E | Light-Weight Gypsum Product |
| 1,638,280 | Fabricated Board | 8/9/1927 | Utzman Clarence W | Fabricated Board |
| 1,641,611 | Nail-Penetrable Wall Board | 9/6/1927 | Armstrong Morgan K | Nail-Penetrable Wall Board |
| 1,641,648 | Plaster Board | 9/6/1927 | Speer Alexander S | Plaster Board |
| 1,643,801 | Method And Apparatus For Constructing Plaster Board | 9/27/1927 | Birdsey Charles R | Method And Apparatus For Constructing Plaster Board |
| 1,652,162 | Molded Structural Unit And Process Of Producing The Same | 12/13/1927 | Brookby Harry E | Molded Structural Unit And Process Of Producing The Same |
| 1,665,168 | Wall Board | 4/3/1928 | Gustafson Edwin L | Wall Board |
| 1,666,161 | Delivery Guide | 4/17/1928 | Birdsey Charles R | Delivery Guide |
| 1,666,180 | Light-Weight Gypsum Products | 4/17/1928 | Roos Carlisle K; Allison Murrell G | Light-Weight Gypsum Products |
| 1,668,548 | Cementitious Material | 5/8/1928 | Brookby Harry E; Roos Carlisle K | Cementitious Material |
| 1,673,944 | Plaster Board | 6/19/1928 | Kohler August F H; Speer Alexander S | Plaster Board |
| 1,676,318 | Apparatus For Making Lap-Edged Plaster Sheathing Board | 7/10/1928 | Birdsey Charles R | Apparatus For Making Lap-Edged Plaster Sheathing Board |
| 1,677,907 | Weight-Supporting Tile | 7/24/1928 | Smith Neal D | Weight-Supporting Tile |
| 1,686,671 | Plaster Board | 10/9/1928 | Speer Alexander S | Plaster Board |
| 1,689,322 | Apparatus For Making Plaster Wall Board | 10/30/1928 | Brookby Harry E; Carl Absmeier | Apparatus For Making Plaster Wall Board |
| 1,696,877 | Plaster-Board Bundle | 12/25/1928 | Birdsey Charles R | Plaster-Board Bundle |
| 1,699,477 | Floor Construction | 1/15/1929 | Reel Herbert W | Floor Construction |
| 1,701,291 | Plaster Board | 2/5/1929 | Armstrong Morgan K | Plaster Board |
| 1,702,076 | Light-Weight Ceramic Material And Process Of Making The Same | 2/12/1929 | Richard Ericson | Light-Weight Ceramic Material And Process Of Making The Same |
| 1,703,183 | Plaster Board | 2/26/1929 | Utzman Clarence W | Plaster Board |
| 1,703,667 | Wall-Board-Joint System | 2/26/1929 | Ernest Green | Wall-Board-Joint System |
| 1,709,047 | Wall And Ceiling Construction | 4/16/1929 | Walper Curry O | Wall And Ceiling Construction |
| 1,710,915 | Reinforced Plaster Wall Board | 4/30/1929 | Birdsey Charles R. | Reinforced Plaster Wall Board |
| 1,718,890 | Apparatus For Constructing Plaster Wall Board | 6/25/1929 | Birdsey Charles R | Apparatus For Constructing Plaster Wall Board |
| 1,723,989 | Insulation | 8/13/1929 | Balduf Bruno E | Insulation |
| 1,724,740 | Plaster-Wall-Board Shipping Package Or Holder | 8/13/1929 | Utzman Clarence W | Plaster-Wall-Board Shipping Package Or Holder |
| 1,725,243 | Treatment Of Ends And Edges Of Burned Gypsum Boards | 8/20/1929 | Avery Jr Sewell L; Basquin Morris H | Treatment Of Ends And Edges Of Burned Gypsum Boards |
| 1,727,420 | Wall Board | 9/10/1929 | Walper Curry O | Wall Board |
| 1,730,113 | Machine For And Process Of Bundling Plasterboard Units Or The Like | 10/1/1929 | Birdsey Charles R | Machine For And Process Of Bundling Plasterboard Units Or The Like |
| 1,731,116 | Plaster Board And Method Of Making Same | 10/8/1929 | Utzman Clarence W | Plaster Board And Method Of Making Same |
| 1,732,348 | Acoustical Wall Support | 10/22/1929 | Balduf Bruno E | Acoustical Wall Support |
| 1,733,741 | Method Of And Machine For Making Plaster Board | 10/29/1929 | Lovett William E | Method Of And Machine For Making Plaster Board |
| 1,733,857 | Lime-Kiln Cooling Attachment | 10/29/1929 | Birdsey Charles R | Lime-Kiln Cooling Attachment |
| 1,747,339 | Wall Board | 2/18/1930 | Walper Curry O | Wall Board |
| 1,749,009 | Plaster Board | 3/4/1930 | Walper Curry O | Plaster Board |
| 1,750,621 | Plaster Wall Board And Method Of Making Same | 3/18/1930 | Brookby Harry E | Plaster Wall Board And Method Of Making Same |
| 1,754,411 | Sound-Insulating Construction | 4/15/1930 | Balduf Bruno E | Sound-Insulating Construction |
| 1,754,413 | Fibrous Wall Board | 4/15/1930 | Brookby Harry E | Fibrous Wall Board |
| 1,754,429 | Plaster-Wall-Board Construction | 4/15/1930 | Knode Oliver M | Plaster-Wall-Board Construction |
| 1,758,200 | Wet Mixing Method And Apparatus | 5/13/1930 | Pfeffer Frederic D; Fred Trotter | Wet Mixing Method And Apparatus |
| 1,758,201 | Ceiling Construction | 5/13/1930 | Reel Herbert W | Ceiling Construction |
| 1,763,291 | Process Of Chemical Printing | 6/10/1930 | Brookby Harry E | Process Of Chemical Printing |
| 1,764,824 | Cellular Structural Material | 6/17/1930 | Brookby Harry E; King George D | Cellular Structural Material |
| 1,767,791 | Mixer For Stucco Compositions | 6/24/1930 | Gough Fred J; Mcneil William M; Pfeffer Frederic D | Mixer For Stucco Compositions |
| 1,768,127 | Machine For Forming Joint Reinforcements | 6/24/1930 | Manske Frederick A; Mcneil William M | Machine For Forming Joint Reinforcements |
| 1,768,141 | Apparatus For Making Blocks | 6/24/1930 | Pfeffer Frederic D; Fred Trotter | Apparatus For Making Blocks |
| 1,768,978 | Apparatus For Slitting Expanded Sheets | 7/1/1930 | Gibson Oliver E | Apparatus For Slitting Expanded Sheets |
| 1,769,519 | Acoustical Material And Method Of Manufacturing Same | 7/1/1930 | King George D; Stitt Roger H | Acoustical Material And Method Of Manufacturing Same |
| 1,769,813 | Corner Bead | 7/1/1930 | Winter John R | Corner Bead |
| 1,778,412 | Sound-Insulated Building | 10/14/1930 | Balduf Bruno E | Sound-Insulated Building |
| 1,784,847 | Tile-Forming Machine | 12/16/1930 | Reel Herbert W | Tile-Forming Machine |
| 1,784,876 | Combined Floor And Ceiling Construction | 12/16/1930 | Marks Herbert E | Combined Floor And Ceiling Construction |
| 1,786,726 | Board-Cutting Machine | 12/30/1930 | Carl Absmeier | Board-Cutting Machine |
| 1,786,732 | Building Insulation | 12/30/1930 | Balduf Bruno E | Building Insulation |
| 1,786,751 | Roof Construction | 12/30/1930 | Heeren Arthur A | Roof Construction |
| 1,786,779 | Conveyer Mechanism | 12/30/1930 | Quick Floyd R | Conveyer Mechanism |
| 1,786,837 | Molding Machine | 12/30/1930 | Farnham Merton W | Molding Machine |
| 1,787,049 | Floor Construction | 12/30/1930 | Marks Herbert E | Floor Construction |
| 1,787,219 | Method Of And Apparatus For Scoring Blocks | 12/30/1930 | Fred Trotter; Arthur Swanson | Method Of And Apparatus For Scoring Blocks |
| 1,787,447 | Tile | 1/6/1931 | Heeren Arthur A | Tile |
| 1,787,514 | Belt Tightener For Machines For Expanding Metal | 1/6/1931 | Dean James H; Baker George W | Belt Tightener For Machines For Expanding Metal |
| 1,811,250 | Sound-Reducing Construction | 6/23/1931 | Balduf Bruno E | Sound-Reducing Construction |
| 1,813,452 | Gypsum Concrete | 7/7/1931 | King George D; Gough Fred J | Gypsum Concrete |
| 1,813,477 | Manufacture Of Corner Beads | 7/7/1931 | Baker George W | Manufacture Of Corner Beads |
| 1,813,828 | Mixing Device | 7/7/1931 | Turner John J; Carl Absmeier | Mixing Device |
| 1,813,834 | Liquid Measuring Apparatus | 7/7/1931 | Ballard Bernard T; Gough Fred J | Liquid Measuring Apparatus |
| 1,817,900 | Roof Construction | 8/4/1931 | Reel Herbert W | Roof Construction |
| 1,818,376 | Cellular Concrete Machine | 8/11/1931 | Brookby Harry E; Gough Fred J | Cellular Concrete Machine |
| 1,819,906 | Form For Supporting Monolithic Slabs Of Cementitious Material | 8/18/1931 | Marks Herbert E | Form For Supporting Monolithic Slabs Of Cementitious Material |
| 1,823,987 | Roof And Floor Construction | 9/22/1931 | Reel Herbert W | Roof And Floor Construction |
| 1,824,245 | Plaster Board | 9/22/1931 | Utzman Clarence W | Plaster Board |
| 1,824,420 | Folding Device For Plaster Board Machinery | 9/22/1931 | Carl Absmeier | Folding Device For Plaster Board Machinery |
| 1,829,035 | Board Control Mechanism | 10/27/1931 | Besal Joseph A; Roy Medaris Le | Board Control Mechanism |
| 1,829,075 | Board Cutting Machine | 10/27/1931 | Vogel Nicholas J; Quick Floyd R | Board Cutting Machine |
| 1,829,156 | Building Construction | 10/27/1931 | Reel Herbert W | Building Construction |
| 1,829,453 | Expansion Coupling For Screw Conveyers | 10/27/1931 | Parker John N | Expansion Coupling For Screw Conveyers |
| 1,838,361 | Reinforcing Stud For Construction Boards | 12/29/1931 | Chesney Robert M | Reinforcing Stud For Construction Boards |
| 1,840,443 | Foam Cell | 1/12/1932 | Gough Fred J | Foam Cell |
| 1,841,233 | Wall Construction | 1/12/1932 | Whiting William A | Wall Construction |
| 1,843,064 | Method Of Making Reinforcing Unions | 1/26/1932 | Chesney Robert M | Method Of Making Reinforcing Unions |
| 1,844,662 | Cellular Product | 2/9/1932 | King George D | Cellular Product |
| 1,845,974 | Board Handling Machine | 2/16/1932 | William Townley | Board Handling Machine |
| 1,845,975 | Building Insulation | 2/16/1932 | Balduf Bruno E | Building Insulation |
| 1,849,328 | Control Device For Conveyers | 3/15/1932 | Ingwersen Carl M; Joe Helget | Control Device For Conveyers |
| 1,855,177 | Insulated Railway Track Construction | 4/26/1932 | Balduf Bruno E | Insulated Railway Track Construction |
| 1,858,369 | Plastic Paint | 5/17/1932 | Linzell Harry K; Scholz Herman A | Plastic Paint |
| 1,870,422 | Building Construction | 8/9/1932 | Reel Herbert W | Building Construction |
| 1,870,432 | Conveyer Device | 8/9/1932 | Witter Earl W | Conveyer Device |
| 1,870,439 | Plaster-Board And Method Of Making Same | 8/9/1932 | Birdsey Charles R | Plaster-Board And Method Of Making Same |
| 1,871,563 | Apparatus For Manufacturing Tile Board | 8/16/1932 | Richard Ericson | Apparatus For Manufacturing Tile Board |
| 1,871,683 | Chemical Printing | 8/16/1932 | Ernest Gaskins | Chemical Printing |
| 1,871,718 | Strip Labeler | 8/16/1932 | Mcneil William M; Ballard Bernard T | Strip Labeler |
| 1,871,731 | Plaster-Board Manufacture | 8/16/1932 | Offutt James S | Plaster-Board Manufacture |
| 1,871,806 | Acoustic Plaster | 8/16/1932 | Roos Carlisle K | Acoustic Plaster |
| 1,871,832 | Board Transfer Device | 8/16/1932 | Carl Absmeier | Board Transfer Device |
| 1,871,843 | Method Of Manufacturing Tile Board | 8/16/1932 | Richard Ericson | Method Of Manufacturing Tile Board |
| 1,872,017 | Bag Filling Machine | 8/16/1932 | Stephens Fred J | Bag Filling Machine |
| 1,887,307 | Scoring And Trimming Machine | 11/8/1932 | Ives Clifford E | Scoring And Trimming Machine |
| 1,896,769 | Wall Or Ceiling Construction | 2/7/1933 | Davis William C; Gibson Oliver E | Wall Or Ceiling Construction |
| 1,897,394 | Gypsum Calciner | 2/14/1933 | Mcneil William M | Gypsum Calciner |
| 1,897,956 | Plaster Composition | 2/14/1933 | Offutt James S | Plaster Composition |
| 1,898,636 | Anhydrite Plastic Material | 2/21/1933 | Linzell Harry K | Anhydrite Plastic Material |
| 1,900,721 | Roof And Floor Construction | 3/7/1933 | Manske Fred A; Odenwaldt Eugene W; Gibson Oliver E | Roof And Floor Construction |
| 1,900,722 | Method Of And Machine For Forming Metal Plates | 3/7/1933 | Manske Fred A; Odenwaldt Eugene W; Gibson Oliver E | Method Of And Machine For Forming Metal Plates |
| 1,900,866 | Acoustical Plaster | 3/7/1933 | Offutt James S | Acoustical Plaster |
| 1,901,024 | Art Of Marking Plastic Material | 3/14/1933 | Jacob Edge | Art Of Marking Plastic Material |
| 1,901,051 | High Strength Calcined Gypsum And Process Of Manufacturing Same | 3/14/1933 | Randel Wilbur S; Dailey Manvel C | High Strength Calcined Gypsum And Process Of Manufacturing Same |
| 1,901,052 | Composition For Molding Investment Inlays | 3/14/1933 | Dailey Manvel C | Composition For Molding Investment Inlays |
| 1,901,053 | Dental Investment Composition | 3/14/1933 | Dailey Manvel C | Dental Investment Composition |
| 1,901,054 | Dental Model Stone Composition | 3/14/1933 | Dailey Manvel C | Dental Model Stone Composition |
| 1,901,055 | Mastic Flooring, Composition, And Method Of Preparing | 3/14/1933 | Linzell Harry K | Mastic Flooring, Composition, And Method Of Preparing |
| 1,901,056 | Model Plaster | 3/14/1933 | Randel Wilbur S | Model Plaster |
| 1,901,057 | Acoustic Corrective Material | 3/14/1933 | Roos Carlisle K | Acoustic Corrective Material |
| 1,902,565 | Slab Floor Or Roof Construction | 3/21/1933 | Marks Herbert E | Slab Floor Or Roof Construction |
| 1,902,789 | Precast Ceiling Construction | 3/21/1933 | Reel Herbert W | Precast Ceiling Construction |
| 1,902,796 | Ceiling Construction | 3/21/1933 | Birdsey Charles R; Reel Herbert W | Ceiling Construction |
| 1,902,835 | Ceiling Construction | 3/28/1933 | Birdsey Charles R | Ceiling Construction |
| 1,905,089 | Apparatus For The Continuous Calcination Of Gypsum | 4/25/1933 | Gough Fred J | Apparatus For The Continuous Calcination Of Gypsum |
| 1,905,152 | Mineral Wool And Method Of And Apparatus For Granulating Same | 4/25/1933 | Clinton Charles H; Theobald Paul F; Stitt Roger H | Mineral Wool And Method Of And Apparatus For Granulating Same |
| 1,907,717 | Method Of And Apparatus For Calcining Gypsum | 5/9/1933 | Birdsey Charles R | Method Of And Apparatus For Calcining Gypsum |
| 1,907,982 | Foam | 5/9/1933 | King George D | Foam |
| 1,907,990 | Expanded Metal Corner Bead | 5/9/1933 | Manske Fred A | Expanded Metal Corner Bead |
| 1,909,583 | Apparatus For Manufacturing Composition Board | 5/16/1933 | Ives Clifford E | Apparatus For Manufacturing Composition Board |
| 1,912,290 | Slab Floor Or Roof Construction | 5/30/1933 | Marks Herbert E. | Slab Floor Or Roof Construction |
| 1,914,345 | Wall Construction | 6/13/1933 | Roos Carlisle K | Wall Construction |
| 1,915,603 | Process Of Making Plaster Board | 6/27/1933 | Gough Fred J | Process Of Making Plaster Board |
| 1,915,672 | Inverter For Sheet Materials | 6/27/1933 | Ives Clifford E | Inverter For Sheet Materials |
| 1,920,496 | Insulating Or Wall Board Product | 8/1/1933 | Carpenter Carroll E | Insulating Or Wall Board Product |
| 1,920,837 | Crate For Sheet Materials | 8/1/1933 | Birdsey Charles R | Crate For Sheet Materials |
| 1,927,542 | Slitter For Metal Lath | 9/19/1933 | Coryell William C | Slitter For Metal Lath |
| 1,927,783 | Rotary Cutter For Making Expanded Metal | 9/19/1933 | Chesney Robert M | Rotary Cutter For Making Expanded Metal |
| 1,929,470 | Foam Cell | 10/10/1933 | Ballard Bernard T | Foam Cell |
| 1,931,125 | Soundproof Door | 10/17/1933 | Balduf Bruno E | Soundproof Door |
| 1,931,240 | Process Of Calcining Gypsum | 10/17/1933 | Randel Wilbur S; Dailey Manvel C | Process Of Calcining Gypsum |
| 1,932,120 | Artificial Gypsite | 10/24/1933 | Roos Carlisle K; Richard Ericson | Artificial Gypsite |
| 1,935,536 | Building Construction | 11/14/1933 | Balduf Bruno E | Building Construction |
| 1,935,537 | Resilient Building Structure | 11/14/1933 | Balduf Bruno E | Resilient Building Structure |
| 1,937,472 | Process Of Producing Foam | 11/28/1933 | Richard Ericson | Process Of Producing Foam |
| 1,937,967 | Plasterboard And Method Of Manufacturing Same | 12/5/1933 | King George D; Offutt James S | Plasterboard And Method Of Manufacturing Same |
| 1,938,354 | Fire-Resistant Wall And Ceiling Structure | 12/5/1933 | Roos Carlisle K | Fire-Resistant Wall And Ceiling Structure |
| 1,938,680 | Resilient Building Construction | 12/12/1933 | Balduf Bruno E | Resilient Building Construction |
| 1,938,803 | Acoustic Plaster | 12/12/1933 | Brookby Harry E | Acoustic Plaster |
| 1,940,933 | Wall And Ceiling Construction | 12/26/1933 | Balduf Bruno E | Wall And Ceiling Construction |
| 1,941,188 | Manufacture Of Plaster Of Paris | 12/26/1933 | Randel Wilbur S | Manufacture Of Plaster Of Paris |
| 1,943,663 | Tile Board And Method Of Manufacturing Same | 1/16/1934 | Richard Ericson | Tile Board And Method Of Manufacturing Same |
| 1,943,953 | Lock Corner Shingle | 1/16/1934 | Donahue John V | Lock Corner Shingle |
| 1,946,056 | Apparatus For Forming Wall Board Into Bundles | 2/6/1934 | Birdsey Charles R | Apparatus For Forming Wall Board Into Bundles |
| 1,947,401 | Floor And Ceiling Construction | 2/13/1934 | Birdsey Charles R; Reel Herbert W | Floor And Ceiling Construction |
| 1,947,497 | Water Paint | 2/20/1934 | Scholz Herman A; Randel Wilbur S | Water Paint |
| 1,947,498 | Water Paint | 2/20/1934 | Scholz Herman A | Water Paint |
| 1,948,878 | Ceramic Acoustical Material | 2/27/1934 | Richard Ericson; Offutt James S; Parsons Joseph R | Ceramic Acoustical Material |
| 1,950,420 | Acoustical Building Construction | 3/13/1934 | Stitt Roger H | Acoustical Building Construction |
| 1,951,711 | Reinforcing And Fastening Means For Tile | 3/20/1934 | Stitt Roger H | Reinforcing And Fastening Means For Tile |
| 1,953,589 | Uniting Dissimilar Materials | 4/3/1934 | Camp Thomas P | Uniting Dissimilar Materials |
| 1,954,889 | Process Of Treating Ceramic Material | 4/17/1934 | Parsons Joseph R | Process Of Treating Ceramic Material |
| 1,955,123 | Foam Cell | 4/17/1934 | Gough Fred J; Ballard Bernard T | Foam Cell |
| 1,958,692 | Sheet Handling Machine | 5/15/1934 | Besal Joseph A; Ives Clifford E | Sheet Handling Machine |
| 1,958,778 | Resilient Machinery Base | 5/15/1934 | Balduf Bruno E | Spring Elements Are Made From Crucible Annealed Steel Containing 0,77 Per Cent Carbon Tempered To Scleroscopic Hardness Of 60 After Forming They Are Heated To A Temperature Of About 782 DEG C, And Quenched In Oil The Elements Are Then Drawn In Liquid Saltpetre At A Temperature Of About 357 DEG C, Air Cooled, And Washed In Boiling Water |
| 1,961,144 | Compartment Shelving | 6/5/1934 | Griffith Arthur C | Compartment Shelving |
| 1,961,525 | Acoustical Plaster For High Humidity Conditions | 6/5/1934 | Offutt James S | Acoustical Plaster For High Humidity Conditions |
| 1,963,609 | Building Insulation | 6/19/1934 | Balduf Bruno E; Hayes Harold O | Building Insulation |
| 1,967,905 | Wall Structure | 7/24/1934 | Roos Carlisle K | Wall Structure |
| 1,972,058 | Tile Fastening Clip | 8/28/1934 | Stitt Roger H | Tile Fastening Clip |
| 1,975,052 | Thermal Testing Device | 9/25/1934 | Roos Carlisle K | Thermal Testing Device |
| 1,977,260 | Metal Lath | 10/16/1934 | Birdsey Charles R | Metal Lath |
| 1,979,704 | Method Of Producing High Strength Calcined Gypsum | 11/6/1934 | Randel Wilbur S; Dailey Manvel C; Mcneil William M | Method Of Producing High Strength Calcined Gypsum |
| 1,981,217 | Attaching Clip | 11/20/1934 | Balduf Bruno E | Attaching Clip |
| 1,981,239 | Building Construction | 11/20/1934 | Manske Fred A | Building Construction |
| 1,981,240 | Wall Construction | 11/20/1934 | Mcneil William M | Wall Construction |
| 1,989,615 | Method Of And Apparatus For The Reduction Of Granular Materials | 1/29/1935 | Hann George L | Method Of And Apparatus For The Reduction Of Granular Materials |
| 1,989,641 | Gypsum Plaster | 1/29/1935 | King George D | Gypsum Plaster |
| 1,991,328 | Forming Tool For Metal Tape | 2/12/1935 | Mccorkle James B | Forming Tool For Metal Tape |
| 1,991,675 | Insulated Boat Construction | 2/19/1935 | Carl Hussman | Insulated Boat Construction |
| 1,992,159 | Acoustical Ceiling Construction | 2/19/1935 | Linzell Harry K; Reel Herbert W | Acoustical Ceiling Construction |
| 1,993,792 | Wall And Ceiling Construction | 3/12/1935 | Manske Fred A; Gibson Oliver E | Wall And Ceiling Construction |
| 1,994,438 | Paint Composition | 3/12/1935 | Scholz Herman A; Osborne Haydon | Paint Composition |
| 1,995,393 | Self-Furring Plaster Board | 3/26/1935 | Manske Fred A | Self-Furring Plaster Board |
| 1,996,032 | Sound Absorbing Composition | 3/26/1935 | Roos Carlisle K | Sound Absorbing Composition |
| 1,996,033 | Sound Absorbing Composition | 3/26/1935 | King George D | Sound Absorbing Composition |
| 1,997,580 | Ceiling Construction | 4/16/1935 | Gibson Oliver E; Strom Carl S | Ceiling Construction |
| 1,997,581 | Acoustical Ceiling Construction | 4/16/1935 | Heeren Arthur A; Gibson Oliver E | Acoustical Ceiling Construction |
| 1,997,582 | Acoustical Building Structure | 4/16/1935 | Heeren Arthur A; Gibson Oliver E | Acoustical Building Structure |
| 1,997,595 | Acoustical Ceiling Construction | 4/16/1935 | Nold John H; Stubbs Frank L | Acoustical Ceiling Construction |
| 1,997,596 | Sound Absorbing Structure | 4/16/1935 | Paley Lewis A | Sound Absorbing Structure |
| 1,997,605 | Membrane Unit Building Construction | 4/16/1935 | Strom Carl S; Offutt James S | Membrane Unit Building Construction |
| 1,997,606 | Membrane Unit Structure | 4/16/1935 | Strom Carl S | Membrane Unit Structure |
| 1,997,607 | Acoustical Ceiling | 4/16/1935 | Strom Carl S | Acoustical Ceiling |
| 1,998,422 | Acoustical Roof Deck | 4/16/1935 | Mcneil William M; Ross Ira G; Manske Fred A | Acoustical Roof Deck |
| 1,998,423 | Building Construction For Acoustical Correction | 4/16/1935 | Stubbs Frank L | Building Construction For Acoustical Correction |
| 1,998,424 | Acoustical Ceiling Construction | 4/16/1935 | Manske Fred A | Acoustical Ceiling Construction |
| 1,998,425 | Acoustical Building Construction | 4/16/1935 | Mcneil William M | Acoustical Building Construction |
| 1,998,686 | Process Of Producing Cellular Ceramic Products | 4/23/1935 | Parsons Joseph R | Process Of Producing Cellular Ceramic Products |
| 1,999,158 | Gypsum Plaster And Process Of Making The Same | 4/23/1935 | Roos Carlisle K | Gypsum Plaster And Process Of Making The Same |
| 1,999,360 | Edge Labeling Mechanism | 4/30/1935 | Ives Clifford E | Edge Labeling Mechanism |
| 1,999,367 | Trowel | 4/30/1935 | Mccorkle James B | Trowel |
| 1,999,371 | Acoustic Corrective Material | 4/30/1935 | Parsons Joseph R | Acoustic Corrective Material |
| 2,000,243 | Wall Construction | 5/7/1935 | Manske Fred A | Wall Construction |
| 2,000,269 | Apparatus For Feeding Plaster Board Into A Drying Kiln | 5/7/1935 | Carl Absmeier | Apparatus For Feeding Plaster Board Into A Drying Kiln |
| 2,000,272 | Kiln Feed Mechanism | 5/7/1935 | Birdsey Charles R | Kiln Feed Mechanism |
| 2,000,663 | Process Of Drying Materials | 5/7/1935 | Darrah William A | Process Of Drying Materials |
| 2,002,176 | Gypsum Plaster And Method Of Manufacturing Same | 5/21/1935 | Gustafson Joseph G | Gypsum Plaster And Method Of Manufacturing Same |
| 2,002,517 | Antivibration Boat Construction | 5/28/1935 | Balduf Bruno E | Antivibration Boat Construction |
| 2,002,554 | Apparatus For Splicing Strips Of Paper | 5/28/1935 | William Townley | Apparatus For Splicing Strips Of Paper |
| 2,004,626 | Means And Method For Packaging Sheet Materials | 6/11/1935 | Hann George L | Means And Method For Packaging Sheet Materials |
| 2,005,572 | Building Arch Construction | 6/18/1935 | Vass Michael G | Building Arch Construction |
| 2,007,133 | Gypsum Slab And Method Of Manufacturing Same | 7/2/1935 | Roos Carlisle K | Gypsum Slab And Method Of Manufacturing Same |
| 2,007,354 | Composite Building Deck | 7/9/1935 | Vass Michael G | Composite Building Deck |
| 2,007,374 | Acoustical Roof Deck | 7/9/1935 | William Kuehne | Acoustical Roof Deck |
| 2,008,192 | Method And Means For Fastening Penetrable Tiles | 7/16/1935 | Stubbs Frank L | Method And Means For Fastening Penetrable Tiles |
| 2,014,355 | Vibration Isolating Pipe Connection | 9/10/1935 | Carl Hussman | Vibration Isolating Pipe Connection |
| 2,014,841 | Floor And Roof Construction | 9/17/1935 | Heeren Arthur A; Johnson Ernest B | Floor And Roof Construction |
| 2,015,412 | Machinery Base | 9/24/1935 | Rose Frank G | Machinery Base |
| 2,017,022 | Cementitious Material | 10/8/1935 | Roos Carlisle K | Cementitious Material |
| 2,017,911 | Wall And Ceiling Construction | 10/22/1935 | Manske Fred A; Gibson Oliver E | Wall And Ceiling Construction |
| 2,018,722 | Shingle | 10/29/1935 | Humphrey Don B | Shingle |
| 2,021,330 | Apparatus For Measuring Vibration | 11/19/1935 | Ross Ira G; Ballard Bernard T | Apparatus For Measuring Vibration |
| 2,021,908 | Tile Attaching Clip | 11/26/1935 | Theodore Bockman | Tile Attaching Clip |
| 2,024,114 | Resilient Railway Track Construction | 12/10/1935 | Ross Ira G; Mcneil William M | Resilient Railway Track Construction |
| 2,026,117 | Resilient Building Construction | 12/31/1935 | Balduf Bruno E | Resilient Building Construction |
| 2,029,009 | Building Construction | 1/28/1936 | Anning Harold E | Building Construction |
| 2,029,733 | Bag Filling Machine | 2/4/1936 | Mcneil William M | Bag Filling Machine |
| 2,029,840 | Plasterboard Reinforcement | 2/4/1936 | Sterling Robert J | Plasterboard Reinforcement |
| 2,031,171 | Mastic Floor Topping | 2/18/1936 | Linzell Harry K | Mastic Floor Topping |
| 2,032,071 | Cementitious Paint And Plastic Composition | 2/25/1936 | Scholz Herman A | Cementitious Paint And Plastic Composition |
| 2,032,659 | Antivibration Machine Base | 3/3/1936 | Carl Hussman | Antivibration Machine Base |
| 2,035,495 | Plastic Board Forming Device | 3/31/1936 | Mills Claude B | Plastic Board Forming Device |
| 2,039,382 | Building Construction And Clip Means Therefor | 5/5/1936 | Balduf Bruno E | Building Construction And Clip Means Therefor |
| 2,041,773 | Resilient Building Wall Clip Construction | 5/26/1936 | Manske Fred A | Resilient Building Wall Clip Construction |
| 2,044,101 | Ceiling Construction | 6/16/1936 | Reel Herbert W | Ceiling Construction |
| 2,044,401 | Core Composition And Method Of Manufacturing Same | 6/16/1936 | Roos Carlisle K | Core Composition And Method Of Manufacturing Same |
| 2,045,311 | Acoustical Wall Covering | 6/23/1936 | Roos Carlisle K; King George D | Acoustical Wall Covering |
| 2,045,312 | Acoustical Wall Covering | 6/23/1936 | Roos Carlisle K; King George D | Acoustical Wall Covering |
| 2,045,313 | Acoustical Wall Covering | 6/23/1936 | Roos Carlisle K; King George D | Acoustical Wall Covering |
| 2,046,296 | Acoustical Paint | 6/30/1936 | Roos Carlisle K; Offutt James S; Scholz Herman A | Acoustical Paint |
| 2,046,558 | Boat Construction | 7/7/1936 | Carl Hussman | Boat Construction |
| 2,046,621 | Method And Apparatus For Expanding Sheet Metal | 7/7/1936 | Gibson Oliver E | Method And Apparatus For Expanding Sheet Metal |
| 2,047,982 | Wallboard Joint | 7/21/1936 | John Page | Wallboard Joint |
| 2,048,981 | Supporting Device For Wall Panels | 7/28/1936 | Vass Michael G | Supporting Device For Wall Panels |
| 2,052,517 | Acoustic Corrective Material | 8/25/1936 | Roos Carlisle K. | Acoustic Corrective Material |
| 2,054,085 | Reinforced Plaster Base | 9/15/1936 | Johnson Lloyd F | Reinforced Plaster Base |
| 2,063,010 | Fireproof Building Construction | 12/8/1936 | Balduf Bruno E | Fireproof Building Construction |
| 2,063,457 | Building Construction | 12/8/1936 | Nold John H; Bostwick George L | Building Construction |
| 2,064,704 | Arch Construction | 12/15/1936 | Vass Michael G | Arch Construction |
| 2,064,751 | Resilient Machinery Base | 12/15/1936 | Carl Hussman | Resilient Machinery Base |
| 2,066,846 | Apparatus For Molding Plastic Materials | 1/5/1937 | Mcneil William M | Apparatus For Molding Plastic Materials |
| 2,067,860 | Building Method And Construction | 1/12/1937 | Joel Pomerene | Building Method And Construction |
| 2,067,876 | Method Of Incorporating Special Materials With Paper Stock | 1/12/1937 | Campbell Wilbert L | Method Of Incorporating Special Materials With Paper Stock |
| 2,070,551 | Core Composition For Plaster Board | 2/9/1937 | King George D | Core Composition For Plaster Board |
| 2,074,937 | Apparatus For Producing High Strength Calcined Gypsum | 3/23/1937 | Randel Wilbur S.; Dailey Manvel C.; Mcneil William M. | Apparatus For Producing High Strength Calcined Gypsum |
| 2,075,772 | Stud Or Joist | 3/30/1937 | Vass Michael G | Stud Or Joist |
| 2,075,773 | Building Construction | 3/30/1937 | Vass Michael G | Building Construction |
| 2,078,198 | Set-Stabilized Gypsum Plaster | 4/20/1937 | King George D | Set-Stabilized Gypsum Plaster |
| 2,078,199 | Heatproofed Set-Stabilized Gypsum Plaster | 4/20/1937 | King George D | Heatproofed Set-Stabilized Gypsum Plaster |
| 2,078,200 | Set-Stabilized Gypsum Plaster | 4/20/1937 | King George D | Set-Stabilized Gypsum Plaster |
| 2,078,207 | Sound Insulating Construction | 4/20/1937 | John Page; Baker George W | Sound Insulating Construction |
| 2,079,338 | Cementitious Material | 5/4/1937 | Roos Carlisle K | Cementitious Material |
| 2,079,565 | Machine For Mixing Plastic Material | 5/4/1937 | Roos Carlisle K; Allison Murrell G | Machine For Mixing Plastic Material |
| 2,080,009 | Plaster Wallboard And Method Of Making It | 5/11/1937 | Roos Carlisle K | Plaster Wallboard And Method Of Making It |
| 2,080,031 | Fiberboard | 5/11/1937 | Devereux Margaret | Fiberboard |
| 2,083,725 | Preformed Slab Building Structure | 6/15/1937 | Manske Fred A; Yeager Roy V | Preformed Slab Building Structure |
| 2,086,886 | Corner Bead And Method Of Manufacturing Same | 7/13/1937 | Vass Michael G | Corner Bead And Method Of Manufacturing Same |
| 2,087,867 | Partition Construction | 7/20/1937 | Balduf Bruno E | Partition Construction |
| 2,088,813 | Apparatus For Preparing Gypsum Slabs | 8/3/1937 | Roos Carlisle K. | Apparatus For Preparing Gypsum Slabs |
| 2,095,631 | Cutting Device | 10/12/1937 | Cumfer Donald A | Cutting Device |
| 2,097,088 | Mixing Machine And Method | 10/26/1937 | Mills Claude B | Mixing Machine And Method |
| 2,099,648 | Vault Construction | 11/16/1937 | Griffith Arthur C | Vault Construction |
| 2,101,001 | Building Construction | 11/30/1937 | Balduf Bruno E | Building Construction |
| 2,104,240 | Lacquer-Undercoat Protective Coating | 1/4/1938 | Pringle William L | Lacquer-Undercoat Protective Coating |
| 2,104,249 | Manufacture Of Expanded Metal | 1/4/1938 | Vass Michael G | Manufacture Of Expanded Metal |
| 2,112,819 | Shadowless Roofing Product, Process And Machine For Making The Same | 3/29/1938 | Grover Williford | Shadowless Roofing Product, Process And Machine For Making The Same |
| 2,121,468 | Sizing Method And Machine | 6/21/1938 | Gibson Oliver E | Sizing Method And Machine |
| 2,121,469 | Sizing And Shearing Method And Device For Flattened Expanded Metal | 6/21/1938 | Vass Michael G | Sizing And Shearing Method And Device For Flattened Expanded Metal |
| 2,121,470 | Machine For Manufacturing Sized Sheets Of Flattened Expanded Metal | 6/21/1938 | Ballard Bernard T; Mcneil William M; Hurd Ralph H | Machine For Manufacturing Sized Sheets Of Flattened Expanded Metal |
| 2,128,190 | Machine For Producing Coated Material | 8/23/1938 | Reade Ralph W B | Machine For Producing Coated Material |
| 2,128,214 | Method Of Producing Coated Material | 8/23/1938 | Reade Ralph W. B. | Method Of Producing Coated Material |
| 2,132,460 | Cutting Device | 10/11/1938 | Cumfer Harry A | Cutting Device |
| 2,133,258 | Expanded Metal Lath | 10/11/1938 | Vass Michael G | Expanded Metal Lath |
| 2,136,166 | Drying Apparatus | 11/8/1938 | Darrah William A. | Drying Apparatus |
| 2,141,492 | Cutting Tool | 12/27/1938 | Russel Southwick Charles | Cutting Tool |
| 2,154,362 | Casein Paint Composition | 4/11/1939 | Scholz Herman A | Casein Paint Composition |
| 2,158,982 | Building Block | 5/16/1939 | King George D; Phelps George L | Building Block |
| 2,160,711 | Wall Structure | 5/30/1939 | Balduf Bruno E | Wall Structure |
| 2,160,787 | Method Of Forming Thick Butt Shingles | 5/30/1939 | Reade Ralph W B | Method Of Forming Thick Butt Shingles |
| 2,167,221 | Casein Paint | 7/25/1939 | Scholz Herman A | Casein Paint |
| 2,168,803 | Method And Apparatus For Manufacturing Wallboard | 8/8/1939 | John Page | Method And Apparatus For Manufacturing Wallboard |
| 2,169,575 | Board-Cutting Machine | 8/15/1939 | Youngfelt Theodore T; Besal Joseph A; Hurd Ralph H | Board-Cutting Machine |
| 2,170,392 | Looper Apparatus | 8/22/1939 | Snyder Gilbert J | Looper Apparatus |
| 2,171,010 | Random Thatch Roof Construction | 8/29/1939 | Schuetz Clyde C; Burns Frank B | Random Thatch Roof Construction |
| 2,171,210 | Board Joint Reinforcement | 8/29/1939 | Linzell Harry K | Board Joint Reinforcement |
| 2,172,048 | Wall Insulation | 9/5/1939 | Johnson Fred G | Wall Insulation |
| 2,173,815 | Heat Insulating Material And Method Of Forming The Same | 9/19/1939 | Slisz Theodore B; Sehuetz Clyde C | Heat Insulating Material And Method Of Forming The Same |
| 2,174,098 | Roofing Element | 9/26/1939 | Oscar Stein | Roofing Element |
| 2,176,835 | Method Of Saturating | 10/17/1939 | Cumfer Donald A | Method Of Saturating |
| 2,176,854 | Colored Fiberboard | 10/17/1939 | Gill Joseph W | Colored Fiberboard |
| 2,177,154 | Calcimine | 10/24/1939 | Scholz Herman A; Alexander Adams | Calcimine |
| 2,179,057 | Heat Insulation | 11/7/1939 | Schuetz Clyde C | Heat Insulation |
| 2,180,433 | Method Of And Apparatus For Manufacturing Wallboard Joint Tape | 11/21/1939 | John Page; Southwick Charles R | Method Of And Apparatus For Manufacturing Wallboard Joint Tape |
| 2,180,608 | Bag Testing Device | 11/21/1939 | Pooler Cecil B | Bag Testing Device |
| 2,183,227 | Oil Paint For Wet Surfaces | 12/12/1939 | Scholz Herman A | Oil Paint For Wet Surfaces |
| 2,190,136 | Apparatus For The Manufacture Of Casein | 2/13/1940 | Oberg Elmer B | Apparatus For The Manufacture Of Casein |
| 2,191,652 | Method Of Sealing Earth Formations | 2/27/1940 | Hamilton Jr Andrew C | Method Of Sealing Earth Formations |
| 2,196,074 | Wall Structure And Building Block Therefor | 4/2/1940 | King George D | Wall Structure And Building Block Therefor |
| 2,198,269 | Manufacture Of Compressed Cellulosic Or Wood Products | 4/23/1940 | Linzell Harry K; Gill Joseph W | Manufacture Of Compressed Cellulosic Or Wood Products |
| 2,198,776 | Water-Resistant Cementitious Product | 4/30/1940 | King George D; Camp Thomas P | Water-Resistant Cementitious Product |
| 2,199,760 | Roofing | 5/7/1940 | Sehuetz Clyde C | Roofing |
| 2,200,155 | Manufacture Of Wallboard Having A Cementitious Core | 5/7/1940 | Camp Thomas P; Glen Ellyn; John Page | Manufacture Of Wallboard Having A Cementitious Core |
| 2,201,667 | Inorganic Chemical Product And Process Of Producing The Same | 5/21/1940 | Huntzicker Harry N | Inorganic Chemical Product And Process Of Producing The Same |
| 2,207,336 | Retarder For Cementitious Material | 7/9/1940 | Yanick Nicholas S | Retarder For Cementitious Material |
| 2,207,339 | Gypsum Composition | 7/9/1940 | Camp Thomas P | Gypsum Composition |
| 2,208,565 | Plaster Retarder | 7/23/1940 | Roos Carlisle K; Huntzicker Harry N | Plaster Retarder |
| 2,210,545 | Process Of Sealing Openings In The Earth | 8/6/1940 | Hamilton Jr Andrew C | Process Of Sealing Openings In The Earth |
| 2,212,811 | Stabilized Gypsum Plaster | 8/27/1940 | Hann George L | Stabilized Gypsum Plaster |
| 2,213,442 | Edging Device For Composition Boards | 9/3/1940 | Walter Elliott | Edging Device For Composition Boards |
| 2,215,244 | Process Of Making Pressed Board Products | 9/17/1940 | Linzell Harry K | Process Of Making Pressed Board Products |
| 2,215,245 | High-Strength Compressed Fiber Product | 9/17/1940 | King George D; Gill Joseph W | High-Strength Compressed Fiber Product |
| 2,215,246 | Consolidated Fiber Product | 9/17/1940 | Gill Joseph W | Consolidated Fiber Product |
| 2,215,353 | Process Of Making Fiberboard | 9/17/1940 | Gill Joseph W | Process Of Making Fiberboard |
| 2,216,555 | Set-Stabilized Calcined Gypsum Plaster | 10/1/1940 | King George D; Dailey Manvel C | Set-Stabilized Calcined Gypsum Plaster |
| 2,220,236 | Punching Machine | 11/5/1940 | Haegele Otto P | Punching Machine |
| 2,220,270 | Process And Apparatus For Perforating Sheet Materials | 11/5/1940 | John Page | Process And Apparatus For Perforating Sheet Materials |
| 2,220,683 | Mixer | 11/5/1940 | Knode Oliver M | Mixer |
| 2,220,684 | Mixer | 11/5/1940 | Knode Oliver M; Besal Joseph A; Thorman Floyd M | Mixer |
| 2,224,810 | Air-Cell Pipe Covering And Method Of Forming The Same | 12/10/1940 | Cumfer Donald A | Air-Cell Pipe Covering And Method Of Forming The Same |
| 2,225,585 | Method Of Making Textured Fiberboard | 12/17/1940 | Method Of Making Textured Fiberboard | |
| 2,227,079 | Wall Clip Building Structure | 12/31/1940 | Gibson Oliver E; William Keen | Wall Clip Building Structure |
| 2,228,151 | Casein And Its Manufacture | 1/7/1941 | Oberg Elmer B | Casein And Its Manufacture |
| 2,230,211 | Plastic Composition | 1/28/1941 | Dailey Manvel C | Plastic Composition |
| 2,231,901 | Process Of Hydrating Calcined Gypsum | 2/18/1941 | Gill Joseph W. | Process Of Hydrating Calcined Gypsum |
| 2,231,902 | Paper Coating Material And The Paper Coated Therewith | 2/18/1941 | Offutt James S; Gill Joseph W | Paper Coating Material And The Paper Coated Therewith |
| 2,232,588 | Cellular Building Unit | 2/18/1941 | Camp Thomas P | Cellular Building Unit |
| 2,233,054 | Building Structure | 2/25/1941 | Heeren Arthur A | Building Structure |
| 2,233,122 | Method And Apparatus For Manufacturing Roofing Materials | 2/25/1941 | Burns Frank B | Method And Apparatus For Manufacturing Roofing Materials |
| 2,233,350 | Vacuum Lift Device | 2/25/1941 | Nelson William L | Vacuum Lift Device |
| 2,233,570 | Apparatus For Molding Sheets | 3/4/1941 | Carl Absmeier | Apparatus For Molding Sheets |
| 2,238,017 | Method And Apparatus For Manufacturing Wallboard | 4/8/1941 | Duncan James K | Method And Apparatus For Manufacturing Wallboard |
| 2,238,022 | Insulating Material And Structure | 4/8/1941 | Gerald Johnson Fred | Insulating Material And Structure |
| 2,239,860 | Method Of Making Plastic Products | 4/29/1941 | Roos Carlisle K | Method Of Making Plastic Products |
| 2,239,861 | Method Of Making Plastic Products | 4/29/1941 | Roos Carlisle K; Jurgensen Jr Delbert F; Camp Thomas P | Method Of Making Plastic Products |
| 2,241,338 | Partition Structure | 5/6/1941 | Balduf Bruno E | Partition Structure |
| 2,244,305 | Machine For Producing Expanded Metal | 6/3/1941 | Mcneil William M; Ballard Bernard T | Machine For Producing Expanded Metal |
| 2,246,983 | Coating Composition And Method Of Making The Same | 6/24/1941 | Oberg Elmer B | Coating Composition And Method Of Making The Same |
| 2,246,987 | Continuous Molding Apparatus | 6/24/1941 | Roos Carlisle K | Continuous Molding Apparatus |
| 2,247,221 | Gypsum Plaster And Method Of Manufacture | 6/24/1941 | Dailey Manvel C | Gypsum Plaster And Method Of Manufacture |
| 2,250,798 | Building Stud Construction | 7/29/1941 | Gibson Oliver E; Mccray Harley E | Building Stud Construction |
| 2,250,918 | Coating Apparatus For Rigid Building Elements | 7/29/1941 | Roos Carlisle K. | Coating Apparatus For Rigid Building Elements |
| 2,253,059 | Mixer | 8/19/1941 | Camp Thomas P | Mixer |
| 2,255,206 | Apparatus For Providing Uniformly Graded Fibrous Materials | 9/9/1941 | Duncan James K | Apparatus For Providing Uniformly Graded Fibrous Materials |
| 2,255,227 | Apparatus For Producing Mineral Wool | 9/9/1941 | Parsons Joseph R | Apparatus For Producing Mineral Wool |
| 2,256,000 | Brake Shoe Reinforcing And Method Of Making The Same | 9/16/1941 | Mcneil William M | Brake Shoe Reinforcing And Method Of Making The Same |
| 2,257,280 | Coating Composition | 9/30/1941 | Scholz Herman A; Oberg Elmer B | Coating Composition |
| 2,263,795 | Building Construction | 11/25/1941 | Balduf Bruno E | Building Construction |
| 2,266,489 | Gypsum Board, Drying Method | 12/16/1941 | Camp Thomas P | Gypsum Board, Drying Method |
| 2,268,822 | Ceiling Construction | 1/6/1942 | Heeren Arthur A | Ceiling Construction |
| 2,269,457 | Water Resistant Composition Board | 1/13/1942 | Jurgensen Jr Delbert F | Water Resistant Composition Board |
| 2,270,672 | Building Slab | 1/20/1942 | Heeren Arthur A | Building Slab |
| 2,271,470 | Building Board Bundle | 1/27/1942 | Youngfelt Theodore T; Haegele Otto P | Building Board Bundle |
| 2,271,472 | Building Construction | 1/27/1942 | Balduf Bruno E | Building Construction |
| 2,271,488 | Building Board Bundle | 1/27/1942 | Nold John H | Building Board Bundle |
| 2,271,728 | Roofing Element | 2/3/1942 | Bainbridge William W | Roofing Element |
| 2,271,845 | Process For Making Porous Material | 2/3/1942 | Parsons Joseph R | Process For Making Porous Material |
| 2,272,702 | Cutting Machine | 2/10/1942 | Haegele Otto P | Cutting Machine |
| 2,272,703 | Plasterboard Manufacturing Machine | 2/10/1942 | Haegele Otto P | Plasterboard Manufacturing Machine |
| 2,275,816 | Flowable Heat Insulating Material And Method And Apparatus For Forming The Same | 3/10/1942 | Richard Ericson | Flowable Heat Insulating Material And Method And Apparatus For Forming The Same |
| 2,278,455 | Fire Resistant Composition | 4/7/1942 | Linzell Harry K; Gill Joseph W | Fire Resistant Composition |
| 2,278,732 | Insulating Building Structure | 4/7/1942 | Parsons Joseph R | Insulating Building Structure |
| 2,278,758 | Plasterboard Reinforcement | 4/7/1942 | Frederick Arendt Beach | Plasterboard Reinforcement |
| 2,287,168 | Punch | 6/23/1942 | Dunean James K | Punch |
| 2,288,987 | Taping Tool | 7/7/1942 | Allen Horace D | Taping Tool |
| 2,289,989 | Partition Structure | 7/14/1942 | John Page | Partition Structure |
| 2,290,486 | Method Of Producing Expanded Metal Lath | 7/21/1942 | Ballard Bernard T; Fleming David M | Method Of Producing Expanded Metal Lath |
| 2,292,011 | Process For The Preparation Of Lightweight Products | 8/4/1942 | Parsons Joseph R | Process For The Preparation Of Lightweight Products |
| 2,292,012 | Process For The Preparation Of Insulation Material | 8/4/1942 | Parsons Joseph R | Process For The Preparation Of Insulation Material |
| 2,292,616 | Gypsum Composition | 8/11/1942 | Dailey Manvel C | Gypsum Composition |
| 2,292,774 | Method Of Making Rigid Building Elements | 8/11/1942 | Roos Carlisle K | Method Of Making Rigid Building Elements |
| 2,294,932 | Continuous Manufacture Of Fibrous Material | 9/8/1942 | John Page | Continuous Manufacture Of Fibrous Material |
| 2,296,416 | Building Construction | 9/22/1942 | Balduf Bruno E | Building Construction |
| 2,296,609 | Building Construction | 9/22/1942 | Gibson Oliver E; Mcneil William M | Building Construction |
| 2,299,062 | Punching Machine | 10/13/1942 | Youngfelt Theodore T | Punching Machine |
| 2,301,597 | Method Of And Apparatus For The Preparation Of Cementitious Slurries | 11/10/1942 | Welty Beryl E; John Page; Bygden Charles A | Method Of And Apparatus For The Preparation Of Cementitious Slurries |
| 2,302,183 | Roofing Material | 11/17/1942 | Burns Frank B. | Roofing Material |
| 2,303,657 | Cupola | 12/1/1942 | Parsons Joseph R | Cupola |
| 2,304,006 | Metal Window Sash | 12/1/1942 | Mcneil William M | Metal Window Sash |
| 2,304,480 | Building Assembly And Bracket Therefor | 12/8/1942 | Schramm Albert A | Building Assembly And Bracket Therefor |
| 2,307,332 | Reinforced Ceramic Material | 1/5/1943 | Parsons Joseph R | Reinforced Ceramic Material |
| 2,311,627 | Shingle Counting Device | 2/23/1943 | Adams Floyd W | Shingle Counting Device |
| 2,313,687 | Ceiling Structure | 3/9/1943 | Walker Stephen P; Schramm Albert A | Ceiling Structure |
| 2,315,256 | Punching And Cutting Machine | 3/30/1943 | Haegele Otto P; Otis Wack | Punching And Cutting Machine |
| 2,316,451 | Apparatus For Producing Mineral Wool | 4/13/1943 | John Page | Apparatus For Producing Mineral Wool |
| 2,321,304 | Wall Construction | 6/8/1943 | Mcneil William M | Wall Construction |
| 2,322,194 | Process For Making Cement Products | 6/15/1943 | King George D | Process For Making Cement Products |
| 2,322,204 | Machine For The Manufacture Of Expanded Metal | 6/22/1943 | Ballard Bernard T | Machine For The Manufacture Of Expanded Metal |
| 2,322,965 | Tread Construction | 6/29/1943 | Mcneil William M | Tread Construction |
| 2,323,564 | Perforated Plasterboard | 7/6/1943 | John Page | Perforated Plasterboard |
| 2,324,916 | Reinforced Structural Element | 7/20/1943 | Duncan James K; Phelps George L | Reinforced Structural Element |
| 2,326,600 | Running Board | 8/10/1943 | Alvord Charles B | Running Board |
| 2,327,150 | Taping Tool | 8/17/1943 | Allen Horace D | Taping Tool |
| 2,329,678 | Expanded Metal Catwalk | 9/14/1943 | Pennington Clifford C | Expanded Metal Catwalk |
| 2,335,565 | Building Construction And Clip Therefor | 11/30/1943 | Gibson Oliver E | Building Construction And Clip Therefor |
| 2,338,327 | Perforating Apparatus | 1/4/1944 | Haegele Otto P | Perforating Apparatus |
| 2,339,235 | Taping Tool | 1/18/1944 | Allen Horace D | Taping Tool |
| 2,340,840 | Composition Of Matter | 2/1/1944 | Wiss John E | Composition Of Matter |
| 2,341,059 | Apparatus For Making Porous Material | 2/8/1944 | Parsons Joseph R | Apparatus For Making Porous Material |
| 2,341,426 | Plaster Composition And Process | 2/8/1944 | Dailey Manvel C | Plaster Composition And Process |
| 2,342,611 | Cellulosic Product | 2/22/1944 | Richard Ericson | Cellulosic Product |
| 2,348,081 | Compressed Cellulosic Product And Method Of Making Same | 5/2/1944 | Linzell Harry K | Compressed Cellulosic Product And Method Of Making Same |
| 2,348,180 | Building Structure | 5/2/1944 | Paley Lewis A | Building Structure |
| 2,353,110 | Plasterboard Nail | 7/4/1944 | Camp Thomas P | Plasterboard Nail |
| 2,354,350 | Coated Structural Material | 7/25/1944 | Schuetz Clyde C | Coated Structural Material |
| 2,354,351 | Method Of Coating Structural Material | 7/25/1944 | Schuetz Clyde C | Method Of Coating Structural Material |
| 2,357,722 | Wall Construction | 9/5/1944 | Balduf Bruno E | Wall Construction |
| 2,359,434 | Apparatus For Making Expanded Metal Brake Shoe Reinforcings | 10/3/1944 | Mcneil William M. | Apparatus For Making Expanded Metal Brake Shoe Reinforcings |
| 2,366,149 | Roof Structure | 12/26/1944 | Robertson John A; Payne Duncan S; Frederick Arendt Beach | Roof Structure |
| 2,366,673 | Method Of Preparing Gypsum Casts | 1/2/1945 | Paley Lewis A | Method Of Preparing Gypsum Casts |
| 2,366,674 | Means And Method For Cementing And Applying Building Tape | 1/2/1945 | Wilcy Petty | Means And Method For Cementing And Applying Building Tape |
| 2,366,675 | Method And Device For Applying Building Tape | 1/2/1945 | Wilcy Petty | Method And Device For Applying Building Tape |
| 2,368,620 | Wall Construction | 2/6/1945 | Strom Carl S | Wall Construction |
| 2,369,000 | Wall Construction | 2/6/1945 | John Page | Wall Construction |
| 2,370,769 | Wall Structure | 3/6/1945 | Baker George W; Nels Nelsson | Wall Structure |
| 2,371,353 | Process For Preparing Reinforced Ceramic Material | 3/13/1945 | Parsons Joseph R. | Process For Preparing Reinforced Ceramic Material |
| 2,375,502 | Fixture Holder For Roll Roofing | 5/8/1945 | Stephens Fred J; Tillotson Wesley T | Fixture Holder For Roll Roofing |
| 2,379,402 | Coating Compositions | 6/26/1945 | Scholz Herman A; Wise John K; Gill Joseph W; Schmidt Marvin T | Coating Compositions |
| 2,380,885 | Building Element | 7/31/1945 | Otis Wack | Building Element |
| 2,381,635 | Partition Structure | 8/7/1945 | Baker George W | Partition Structure |
| 2,383,252 | Method Of Making Plaster Retarder | 8/21/1945 | Huntzicker Harry N | Method Of Making Plaster Retarder |
| 2,383,254 | Calcining Process And Apparatus | 8/21/1945 | Jessen Heinrich C | Calcining Process And Apparatus |
| 2,385,560 | Method Of Testing A Pigment | 9/25/1945 | Wise John K | Method Of Testing A Pigment |
| 2,388,487 | Process Of Making Compressed Fiber Products | 11/6/1945 | Linzell Harry K | Process Of Making Compressed Fiber Products |
| 2,388,880 | Method Of Manufacturing Surface Ornamented Acoustical Tile | 11/13/1945 | Stitt Roger H | Method Of Manufacturing Surface Ornamented Acoustical Tile |
| 2,389,573 | Building Structure | 11/20/1945 | Balduf Bruno E | Building Structure |
| 2,392,179 | Fastener | 1/1/1946 | Paley Lewis A; Young William H | Fastener |
| 2,392,923 | Machine For Manufacturing Recessed Plasterboard | 1/15/1946 | Hurd Ralph H | Machine For Manufacturing Recessed Plasterboard |
| 2,393,514 | Wallboard Package And Holder | 1/22/1946 | Bertram Bicknell Alfred | Wallboard Package And Holder |
| 2,395,231 | Cupola Furnace | 2/19/1946 | Mcneil William M | Cupola Furnace |
| 2,395,375 | Method For Producing A Variegated Surface On Fiberboard | 2/19/1946 | Linzell Harry K | Method For Producing A Variegated Surface On Fiberboard |
| 2,396,996 | Apparatus For Making Curved Cellulosic Sheets | 3/19/1946 | Frost Orcutt W; Willey Grant S | Apparatus For Making Curved Cellulosic Sheets |
| 2,398,632 | Building Element | 4/16/1946 | Frost Orcutt W; Conover James H | Building Element |
| 2,400,698 | Folding Or Creasing Device | 5/21/1946 | Lissa Gus A | Folding Or Creasing Device |
| 2,401,666 | Paint Compositions From Aqueous And Nonaqueous Vehicle | 6/4/1946 | Schmidt Marvin T | Paint Compositions From Aqueous And Nonaqueous Vehicle |
| 2,402,966 | Process Of Producing Variegated Pressed Fiberboard | 7/2/1946 | Linzell Harry K | Process Of Producing Variegated Pressed Fiberboard |
| 2,404,463 | Aqueous Emulsion Paint | 7/23/1946 | Schmidt Marvin T | Aqueous Emulsion Paint |
| 2,408,647 | Manufacture Of Hydrated Lime | 10/1/1946 | Huntzicker Harry N; Norman Jr Charles Robert | Manufacture Of Hydrated Lime |
| 2,409,951 | Insulating Bat | 10/22/1946 | Nootens Julian H | Insulating Bat |
| 2,410,390 | Quick-Setting Anhydrite And Its Manufacture | 10/29/1946 | Paley Lewis A | Quick-Setting Anhydrite And Its Manufacture |
| 2,410,922 | Frame Member | 11/12/1946 | Balduf Bruno E | Frame Member |
| 2,412,156 | Retarder | 12/3/1946 | King George D; Dailey Manvel C | Retarder |
| 2,416,035 | Gypsum Compositions Capable Of Setting At Elevated Temperatures | 2/18/1947 | Whittier William A | Gypsum Compositions Capable Of Setting At Elevated Temperatures |
| 2,418,590 | Process Of Making Anhydrous Calcium Sulphate | 4/8/1947 | Linzell Harry K; Simpson Harold E; Dailey Manvel C | Process Of Making Anhydrous Calcium Sulphate |
| 2,424,937 | Incendiary Composition | 7/29/1947 | Linzell Harry K | Incendiary Composition |
| 2,427,879 | Structural Product | 9/23/1947 | Robertson John A; Camp Thomas P; Kolmodin Chester N | Structural Product |
| 2,429,113 | Self-Locking Fastener | 10/14/1947 | Warner Chester E | Self-Locking Fastener |
| 2,430,828 | Aqueous Emulsion Paint | 11/11/1947 | Schmidt Marvin T; Wise John K | Aqueous Emulsion Paint |
| 2,431,720 | Method Of Making Pressed Decorative Lignocellulosic Products | 12/2/1947 | Willey Grant S | Method Of Making Pressed Decorative Lignocellulosic Products |
| 2,432,963 | Water-Resistant Gypsum Products And Process Of Making | 12/16/1947 | Camp Thomas P | Water-Resistant Gypsum Products And Process Of Making |
| 2,432,971 | Porous Composition Of Matter And Method Of Manufacture | 12/16/1947 | Ruthman Kenneth S; Parsons Joseph R | Porous Composition Of Matter And Method Of Manufacture |
| 2,434,780 | Process Of Molding Hot Materials | 1/20/1948 | Wiss John E; Wagner Rio B | Process Of Molding Hot Materials |
| 2,441,927 | Mucilaginous Composition | 5/18/1948 | Alexander Adams | Mucilaginous Composition |
| 2,442,519 | Insulating Material And Method Of Making Same | 6/1/1948 | Schuetz Clyde C | Insulating Material And Method Of Making Same |
| 2,446,990 | Water-Setting Cement Composition | 8/10/1948 | Schuetz Clyde C | Water-Setting Cement Composition |
| 2,451,445 | Manufacture Of Dense Products From Cement Material | 10/12/1948 | Parsons Joseph R | Manufacture Of Dense Products From Cement Material |
| 2,451,446 | Light-Weight Fiber Containing Product | 10/12/1948 | Parsons Joseph R | Light-Weight Fiber Containing Product |
| 2,456,269 | Plastic Joint Composition | 12/14/1948 | Gill Joseph W | Plastic Joint Composition |
| 2,458,143 | Fire Resistant Asphalt Roofing | 1/4/1949 | Burns Frank B; Larrison Millard S; Higgs Morton C | Fire Resistant Asphalt Roofing |
| 2,458,297 | Cement Applicator For Building Tape | 1/4/1949 | Wilcy Petty | Cement Applicator For Building Tape |
| 2,459,121 | Acoustical Tile | 1/11/1949 | Willey Grant S; Frost Orecutt W | Acoustical Tile |
| 2,464,759 | Water-Repellent Coating Composition And Method Of Coating | 3/15/1949 | Camp Thomas P | Water-Repellent Coating Composition And Method Of Coating |
| 2,471,875 | Process Of Making Stabilized Jel-Type Hydrated Lime | 5/31/1949 | Kester Bruce E | Process Of Making Stabilized Jel-Type Hydrated Lime |
| 2,472,756 | Partition Structure | 6/7/1949 | Nels Nelsson | Partition Structure |
| 2,476,919 | Self-Hardening Composition Of Ureaformaldehyde Resins And A Hydrated Alkaline Earth Oxide | 7/19/1949 | Scholz Herman A; Wise John K | Self-Hardening Composition Of Ureaformaldehyde Resins And A Hydrated Alkaline Earth Oxide |
| 2,476,939 | Self-Hardening Composition Of Melamine-Formaldehyde Resin And A Hydrated Alkaline Earth Oxide | 7/19/1949 | Wise John K | Self-Hardening Composition Of Melamine-Formaldehyde Resin And A Hydrated Alkaline Earth Oxide |
| 2,481,794 | Ceiling Construction | 9/13/1949 | Stitt Roger H | Ceiling Construction |
| 2,487,030 | Process Of Producing An Intimate Mixture Of Partially Dextrinized Farinceous Material And Calcined Gypsum | 11/1/1949 | Schustek Jr George W | Process Of Producing An Intimate Mixture Of Partially Dextrinized Farinceous Material And Calcined Gypsum |
| 2,487,036 | Controlled-Consistency Gypsum Plasters And Method And Materials For Producing The Same | 11/1/1949 | Wise John K | Controlled-Consistency Gypsum Plasters And Method And Materials For Producing The Same |
| 2,489,033 | Process Of Making A Plastic Hydrated Lime | 11/22/1949 | Huntzieker Harry N | Process Of Making A Plastic Hydrated Lime |
| 2,492,212 | Methods For Sealing Earth Formations And An Earth Sealing Plug Suitable Therefor | 12/27/1949 | Dailey Manvel C | Methods For Sealing Earth Formations And An Earth Sealing Plug Suitable Therefor |
| 2,494,403 | Mold Composition | 1/10/1950 | Nies Brainard W; Duffy Edward W | Mold Composition |
| 2,495,043 | Laminated Product And Process Of Making Same | 1/17/1950 | Willey Grant S; Ruthman Kenneth S | Laminated Product And Process Of Making Same |
| 2,513,972 | Ornamental Tile | 7/4/1950 | Stitt Roger H | Ornamental Tile |
| 2,517,070 | Calcined Gypsum Castings And Process Of Making | 8/1/1950 | Wise John K | Calcined Gypsum Castings And Process Of Making |
| 2,518,281 | Laminated Structure And Adhesive Therefor | 8/8/1950 | Camp Thomas P; Kolmodin Chester N | Laminated Structure And Adhesive Therefor |
| 2,518,359 | Coating For Insulation Boards | 8/8/1950 | Mohrer Henry Z | Coating For Insulation Boards |
| 2,526,537 | Water-Resistant Gypsum Products And Method Of Making | 10/17/1950 | Camp Thomas P | Water-Resistant Gypsum Products And Method Of Making |
| 2,526,538 | Water-Resistant Gypsum Products And Method Of Making | 10/17/1950 | Camp Thomas P | Water-Resistant Gypsum Products And Method Of Making |
| 2,529,175 | Apparatus For Texturing Asbestoscement Sheets | 11/7/1950 | Nelson William L | Apparatus For Texturing Asbestoscement Sheets |
| 2,529,835 | Metal-Casting Molds And Processes And Materials For Producing The Same | 11/14/1950 | Dailey Manvel C; Parsons Joseph R | Metal-Casting Molds And Processes And Materials For Producing The Same |
| 2,535,352 | Loop Controlled Variable-Speed Drive | 12/26/1950 | Cumfer Donald A | Loop Controlled Variable-Speed Drive |
| 2,537,509 | Process For Making Wallboard | 1/9/1951 | Camp Thomas P | Process For Making Wallboard |
| 2,538,742 | Digesting Lignocellulose With A Rosin Soap | 1/16/1951 | Willey Grant S | Digesting Lignocellulose With A Rosin Soap |
| 2,553,413 | Roofing Material And Process Of Making Same | 5/15/1951 | Higgs Morton C | Roofing Material And Process Of Making Same |
| 2,560,521 | Process Of Producing Water-Repellent Gypsum Sheathing Board | 7/10/1951 | Camp Thomas P | Process Of Producing Water-Repellent Gypsum Sheathing Board |
| 2,562,859 | Plasterboard | 7/31/1951 | Camp Thomas P | Plasterboard |
| 2,566,062 | Device For Storing And Holding Clips | 8/28/1951 | Jaeger Robert O | Device For Storing And Holding Clips |
| 2,566,964 | Fire-Retardant Paints | 9/4/1951 | Scholz Herman A; Saville Earl E | Fire-Retardant Paints |
| 2,569,399 | Fire Resistant Asphalt Coating | 9/25/1951 | Burns Frank B; Larrison Millard S | Fire Resistant Asphalt Coating |
| 2,571,343 | Self-Setting Plastic Material Consisting Essentially Of Alpha-Gypsum And An Aminotriazine Resin | 10/16/1951 | Dailey Manvel C; Duffy Edward W | Self-Setting Plastic Material Consisting Essentially Of Alpha-Gypsum And An Aminotriazine Resin |
| 2,573,659 | Method Of Making Color Ornamented Asbestos-Cement Sheets | 10/30/1951 | Bollaert Edgard M | Method Of Making Color Ornamented Asbestos-Cement Sheets |
| 2,581,058 | Coatings For Insulation Board | 1/1/1952 | Wise John K | Coatings For Insulation Board |
| 2,581,076 | Decorated Wallboard And Method Of Making The Same | 1/1/1952 | Camp Thomas P | Decorated Wallboard And Method Of Making The Same |
| 2,581,993 | Process Of Making Acoustical Tile | 1/8/1952 | Willey Grant S.; Frost Orcutt W. | Process Of Making Acoustical Tile |
| 2,586,726 | Method Of Producing Lightweight Inorganic Insulating Material | 2/19/1952 | Schuetz Clyde C; Norman Jr Charles R | Method Of Producing Lightweight Inorganic Insulating Material |
| 2,587,710 | Apparatus And Process For Making Mineral Wool | 3/4/1952 | Downey Richard M | Apparatus And Process For Making Mineral Wool |
| 2,606,440 | Vaporproof Building Construction | 8/12/1952 | Willey Grant S | Vaporproof Building Construction |
| 2,608,911 | Concrete Form Lining Material | 9/2/1952 | Frost Orcutt W; Conover James H | Concrete Form Lining Material |
| 2,618,028 | Panel Type Laminated Wallboard Partition | 11/18/1952 | William Baker George | Panel Type Laminated Wallboard Partition |
| 2,620,279 | Set Stabilized Low Consistency Calcined Gypsum Product | 12/2/1952 | Clark Charles T | Set Stabilized Low Consistency Calcined Gypsum Product |
| 2,638,640 | Window Construction | 5/19/1953 | Ballard Bernard T | Window Construction |
| 2,639,478 | Process Of Preparing Patterns | 5/26/1953 | Nies Brainard W; Duffy Edward W | Process Of Preparing Patterns |
| 2,639,989 | Treatment Of Cellulosic Pulps | 5/26/1953 | Conover James H | Treatment Of Cellulosic Pulps |
| 2,640,786 | Coating Composition And Fire Resistant Building Element Coated Therewith | 6/2/1953 | Parsons Joseph R; Higgs Morton C; Loos Mary A | Coating Composition And Fire Resistant Building Element Coated Therewith |
| 2,641,035 | Wall Construction And Clip Therefor | 6/9/1953 | Nels Nelsson | Wall Construction And Clip Therefor |
| 2,646,593 | Method And Apparatus For Fiberizing Molten Material | 7/28/1953 | Downey Richard M | Method And Apparatus For Fiberizing Molten Material |
| 2,660,416 | Self-Cleaning Gate For Mixing Machines | 11/24/1953 | Camp Thomas P; Thorsen John I; Besal Joseph A | Self-Cleaning Gate For Mixing Machines |
| 2,661,515 | Resilient Fastening Clip | 12/8/1953 | Nels Nelsson | Resilient Fastening Clip |
| 2,663,646 | Ball Milled High Calcium Lime And Process Of Making The Same | 12/22/1953 | Huntzicker Harry N; Dailey Manvel C; Minnis Bradford R | Ball Milled High Calcium Lime And Process Of Making The Same |
| 2,663,647 | Hydrated Lime Composition And Process | 12/22/1953 | Huntzicker Harry N | Hydrated Lime Composition And Process |
| 2,664,362 | Bituminous Product Surfaced With Mineral Granules And Process Of Making Same | 12/29/1953 | Higgs Morton C; George Hartwright | Bituminous Product Surfaced With Mineral Granules And Process Of Making Same |
| 2,668,342 | Partition Clip | 2/9/1954 | Nels Nelsson | Partition Clip |
| 2,675,929 | Handling System For Boardlike Articles | 4/20/1954 | Youngfelt Thomas T | Handling System For Boardlike Articles |
| 2,675,930 | Apparatus For Forming Stacks Of Boards | 4/20/1954 | Youngfelt Thomas T; Besal Joseph A | Apparatus For Forming Stacks Of Boards |
| 2,676,483 | Wall Base Construction | 4/27/1954 | Nels Nelsson | Wall Base Construction |
| 2,681,127 | Nail Receiving Structural Frame Member | 6/15/1954 | Baker George W | Nail Receiving Structural Frame Member |
| 2,681,255 | Blow-Nozzle For Differential Blasting Of Molten Material | 6/15/1954 | Downey Richard M | Blow-Nozzle For Differential Blasting Of Molten Material |
| 2,689,472 | Fire-Resistant Wall Construction | 9/21/1954 | Robertson John A | Fire-Resistant Wall Construction |
| 2,697,982 | Apparatus For Producing Plasterboards Having Printed Edge Indicia | 12/28/1954 | Carlson Clarence A | Apparatus For Producing Plasterboards Having Printed Edge Indicia |
| 2,699,414 | Water-Resistant Gypsum Composition And Emulsions For Making The Same | 1/11/1955 | Selbe Rexford L | Water-Resistant Gypsum Composition And Emulsions For Making The Same |
| 2,699,669 | Hollow Wall Construction | 1/18/1955 | Nels Nelsson | Hollow Wall Construction |
| 2,701,209 | Plastic Lime Of Enhanced Hoddability | 2/1/1955 | Huntzicker Harry N | Plastic Lime Of Enhanced Hoddability |
| 2,701,388 | Spinning-Rotor For Making Mineral Wool And The Like | 2/8/1955 | Downey Richard M | Spinning-Rotor For Making Mineral Wool And The Like |
| 2,707,818 | Bundle Clipping Machine | 5/10/1955 | John Page | Bundle Clipping Machine |
| 2,714,305 | Clip Retained Wall Structure | 8/2/1955 | Nels Nelsson | Clip Retained Wall Structure |
| 2,718,673 | Building Material | 9/27/1955 | Nels Nelsson | Building Material |
| 2,721,471 | Wall Construction | 10/25/1955 | Nels Nelsson; Baker George W | Wall Construction |
| 2,724,960 | Furred Wall Construction | 11/29/1955 | Nels Nelsson | Furred Wall Construction |
| 2,729,861 | Apparatus And Method For Making Fibrous Felts | 1/10/1956 | Downey Richard M | Apparatus And Method For Making Fibrous Felts |
| 2,731,670 | Removal Of Slag From Iron Distributors Used In The Production Of Mineral Wool | 1/24/1956 | Downey Richard M | Removal Of Slag From Iron Distributors Used In The Production Of Mineral Wool |
| 2,736,929 | Ceiling Or Wall Construction | 3/6/1956 | Nies Brainard W; Selbe Rexford L | Ceiling Or Wall Construction |
| 2,745,277 | Ceiling Runners And Partition Structure | 5/15/1956 | Nels Nelsson | Ceiling Runners And Partition Structure |
| 2,749,263 | Gypsum Boards Having Crack Resistant Edge Portions | 6/5/1956 | Gibson Oliver E | Gypsum Boards Having Crack Resistant Edge Portions |
| 2,749,267 | Method Of Covering The Joint Between Wallboard And The Resultant Product | 6/5/1956 | Gill Joseph W; Russel Southwick Charles | Method Of Covering The Joint Between Wallboard And The Resultant Product |
| 2,750,031 | Stapled Gypsum Plasterboard Lath Bundle | 6/12/1956 | Eckrote Kenneth R; Tolley William W | Stapled Gypsum Plasterboard Lath Bundle |
| 2,766,856 | Access Panel Construction | 10/16/1956 | Nels Nelsson | Access Panel Construction |
| 2,767,440 | Suspended Ceiling Construction | 10/23/1956 | Nels Nelsson | Suspended Ceiling Construction |
| 2,806,811 | Paper-Covered Gypsum Board | 9/17/1957 | Von Hazmburg Romulus S | Paper-Covered Gypsum Board |
| 2,810,166 | Laminated Wall And Partition Structure | 10/22/1957 | Nels Nelsson | Laminated Wall And Partition Structure |
| 2,811,036 | Suspended Ceiling Construction | 10/29/1957 | Nels Nelsson | Suspended Ceiling Construction |
| 2,815,542 | Laminated Partition | 12/10/1957 | Baker George W | Laminated Partition |
| 2,816,436 | Furred Wall Construction | 12/17/1957 | Nels Nelsson | Furred Wall Construction |
| 2,830,352 | Tile Molding Table | 4/15/1958 | Gibson Oliver E | Tile Molding Table |
| 2,843,230 | Building Construction | 7/15/1958 | Nels Nelsson | Building Construction |
| 2,851,740 | Wall Construction | 9/16/1958 | Baker George W | Wall Construction |
| 2,853,394 | Cementitious Composition | 9/23/1958 | Riddell Wallace C; Kirk George B | Cementitious Composition |
| 2,858,777 | Dutch Lap Shingling | 11/4/1958 | Schuetz Clyde C | Dutch Lap Shingling |
| 2,862,289 | Bundle Clipping Machine | 12/2/1958 | Womack Ragan M; Swaney Hugh F; Gibson Oliver E | Bundle Clipping Machine |
| 2,882,990 | Sound Absorbing Units And Method Of Making Same | 4/21/1959 | Mustoe Robert M | Sound Absorbing Units And Method Of Making Same |
| 2,893,889 | Intumescent Fire-Retarding Bituminous Coating Composition And Roofing Made Therefrom | 7/7/1959 | Schuetz Clyde C; Richard Ericson | Intumescent Fire-Retarding Bituminous Coating Composition And Roofing Made Therefrom |
| 2,903,104 | T-Joint | 9/8/1959 | D. Brown | T-Joint |
| 2,903,753 | Snap-In Clip For Metal Studs | 9/15/1959 | Nels Nelsson | Snap-In Clip For Metal Studs |
| 2,904,893 | Process Of Humidifying Hardboard | 9/22/1959 | Willey Grant S | Process Of Humidifying Hardboard |
| 2,907,667 | Process Of Calcining Gypsum | 10/6/1959 | Johnson Elmer S | Process Of Calcining Gypsum |
| 2,907,668 | Calcination Of Gypsum | 10/6/1959 | Nies Brainard W; Johnson Elmer S | Calcination Of Gypsum |
| 2,909,251 | Runners For Nonload-Bearing Partitions | 10/20/1959 | Nels Nelsson | Runners For Nonload-Bearing Partitions |
| 2,913,308 | Process For The Production Of High Strength Low Consistency Calcined Gypsum | 11/17/1959 | Dailey Manvel C; Johnson Elmer S | Process For The Production Of High Strength Low Consistency Calcined Gypsum |
| 2,922,201 | Wooden Stud Partition | 1/26/1960 | Baker George W | Wooden Stud Partition |
| 2,942,703 | Wall Finishing Construction | 6/28/1960 | Nels Nelsson | Wall Finishing Construction |
| 2,944,284 | Binder Distribution And Atomizing System For Fiberizing Apparatus | 7/12/1960 | Tillotson Wesley T; Easterday Floyd W | Binder Distribution And Atomizing System For Fiberizing Apparatus |
| 2,957,774 | Gypsum Composition | 10/25/1960 | Selbe Rexford L; Jacobson Robert E | Gypsum Composition |
| 2,957,775 | Gypsum Composition | 10/25/1960 | Jacobson Robert E | Gypsum Composition |
| 2,958,403 | Demountable Partition | 11/1/1960 | Robertson John A | Demountable Partition |
| 2,958,982 | Building Construction | 11/8/1960 | Baker George W | Building Construction |
| 2,959,897 | Clip Nail | 11/15/1960 | Baker George W | Clip Nail |
| 2,980,548 | Plaster Composition | 4/18/1961 | Lee Hampton Archie | Plaster Composition |
| 2,985,219 | Process And Apparatus For Producing Plasterboard | 5/23/1961 | Summerfield John M | Process And Apparatus For Producing Plasterboard |
| 2,993,307 | Locking Shingle | 7/25/1961 | Wendt Frank J | Locking Shingle |
| 2,996,765 | Suspended Ceiling And Clip Therefor | 8/22/1961 | Nels Nelsson | Suspended Ceiling And Clip Therefor |
| 2,998,337 | Reflective-Fibrous Type Insulation | 8/29/1961 | Tillotson Wesley T | Reflective-Fibrous Type Insulation |
| 3,003,979 | Dry Cement Composition Comprising Cellulosic Thickener Gelled Starch, Polyvinyl Alcohol And Polyvinyl Acetate | 10/10/1961 | Ptasienski Mitchell P; Gill Joseph W | Dry Cement Composition Comprising Cellulosic Thickener Gelled Starch, Polyvinyl Alcohol And Polyvinyl Acetate |
| 3,013,299 | Method Of And Means For Fiberization | 12/19/1961 | Owens William H | Method Of And Means For Fiberization |
| 3,022,538 | Means For Manufacturing Mineral Wool | 2/27/1962 | Setterberg Carl B | Means For Manufacturing Mineral Wool |
| 3,025,650 | Wall Structure And Improved Clip For Attaching Boards To Trussed Studs | 3/20/1962 | Nels Nelsson | Wall Structure And Improved Clip For Attaching Boards To Trussed Studs |
| 3,027,605 | Hollow Wall Construction | 4/3/1962 | Nels Nelsson | Hollow Wall Construction |
| 3,029,940 | Packaging Material And Method For Making Same | 4/17/1962 | Stig Lagergren | Packaging Material And Method For Making Same |
| 3,042,193 | Self-Sealing Shingle | 7/3/1962 | Wendt Frank J | Self-Sealing Shingle |
| 3,042,198 | Method And Apparatus For Cleaning Wood Chips | 7/3/1962 | Michael Slavich | Method And Apparatus For Cleaning Wood Chips |
| 3,051,602 | Multi-Speed Furnace Traverse | 8/28/1962 | Schairbaum Albert W | Multi-Speed Furnace Traverse |
| 3,056,234 | Wall And Ceiling Construction | 10/2/1962 | Nels Nelsson; Karl Knohl Friedrich | Wall And Ceiling Construction |
| 3,062,752 | Dimensionally Stable Expanded Perlite And Method For Making The Same | 11/6/1962 | Larson Kenneth R | Dimensionally Stable Expanded Perlite And Method For Making The Same |
| 3,072,095 | Automatic Spraying Apparatus | 1/8/1963 | Keessen Harold E; Morgan Jr William B | Automatic Spraying Apparatus |
| 3,081,152 | Process For Calcination Of Gypsum | 3/12/1963 | Johnson Elmer S | Process For Calcination Of Gypsum |
| 3,083,756 | Board-Forming Machine | 4/2/1963 | John Page; Mccleary Robert E | Board-Forming Machine |
| 3,086,328 | Precreased Paper Tape For Wallboard Joint | 4/23/1963 | Peterson John H; David Foggin Ellsworth; James O'Donnell Edward | Precreased Paper Tape For Wallboard Joint |
| 3,090,164 | Wall Construction And Resilient Runner Therefor | 5/21/1963 | Nels Nelsson | Wall Construction And Resilient Runner Therefor |
| 3,113,733 | Apparatus And Method For Extracting Trash | 12/10/1963 | Carlson Clarence A | Apparatus And Method For Extracting Trash |
| 3,127,827 | Ventilated Ceiling Structure Using Panel-Supporting T-Rails With Valve Controlled Slots In Pairs For Admitting Ventilating Air | 4/7/1964 | Ericson Walter M | Ventilated Ceiling Structure Using Panel-Supporting T-Rails With Valve Controlled Slots In Pairs For Admitting Ventilating Air |
| 3,130,821 | Clip For Securing Suspended Ceiling Structural Members | 4/28/1964 | Dunlap Arthur H | Clip For Securing Suspended Ceiling Structural Members |
| 3,144,733 | Clip Construction | 8/18/1964 | Balinski Henry A | Clip Construction |
| 3,149,018 | Film-Covered Article And Method Of Making Same | 9/15/1964 | Jacobson Robert E | Film-Covered Article And Method Of Making Same |
| 3,153,467 | Means For Positioning The Supporting Members In A Wall Construction | 10/20/1964 | Nels Nelsson; Payne Duncan S | Means For Positioning The Supporting Members In A Wall Construction |
| 3,159,092 | Ceiling Panel With Prefabricated Valved Ports For Controlled Air Circulation | 12/1/1964 | Ericson Walter M | Ceiling Panel With Prefabricated Valved Ports For Controlled Air Circulation |
| 3,163,266 | Suspended Ceiling Construction And Clip Therefor | 12/29/1964 | Nels Nelsson | Suspended Ceiling Construction And Clip Therefor |
| 3,170,162 | Clinching Tool | 2/23/1965 | Balinski Henry A | Clinching Tool |
| 3,180,783 | Fire Resistant Asphalt Coating Composition And Shingle | 4/27/1965 | Walker Robert T; Schuetz Clyde C | Fire Resistant Asphalt Coating Composition And Shingle |
| 3,190,787 | Gypsum Board | 6/22/1965 | Muller Robert E; Henkels Paul L; O'Kelly Brendan M | A Lightweight Gypsum Board Comprises A Paper Cover Sheet And A Gypsum Core Of Density 38-45 Lb/Ft3 Containing Boric Acid In An Amount Defined By The Area ABCDE Of The Figure The Gypsum Core May Be Prepared From A Mixture Of Gypsum Hemihydrate, Paper Fiber Accelerator, Lignin Dispersant, Starch, Rosin Soap Foaming Agent, Water And Boric Acid |
| 3,192,577 | Control Joint For Building Construction | 7/6/1965 | Reginald Barr Thomas | Control Joint For Building Construction |
| 3,199,997 | Process For Producing Calcined Products From By-Product Gypsum | 8/10/1965 | Johnson Lucille G | Process For Producing Calcined Products From By-Product Gypsum |
| 3,204,547 | Ventilating System Using Valved Ports Between Panels | 9/7/1965 | Ericson Walter M | Ventilating System Using Valved Ports Between Panels |
| 3,216,167 | Prefabricated Panel | 11/9/1965 | Roberts James R; Valerio Vito F | Prefabricated Panel |
| 3,216,537 | Clip Member For Suspended Ceiling Construction | 11/9/1965 | Nels Nelsson | Clip Member For Suspended Ceiling Construction |
| 3,217,456 | Structural Member With Multi-Layered Gypsum Board Fire Protection | 11/16/1965 | Quigg Paul S; Nels Nelsson | Structural Member With Multi-Layered Gypsum Board Fire Protection |
| 3,228,822 | Tubular Core Partition Panel | 1/11/1966 | Maurice Norman | Tubular Core Partition Panel |
| 3,233,378 | Monolithic Roof And Floor Construction | 2/8/1966 | Crumbaugh John H | Monolithic Roof And Floor Construction |
| 3,237,361 | Siding Construction | 3/1/1966 | Norman Jr Charles R | Siding Construction |
| 3,239,992 | Manufacture Of Self Sealing Shingle And Bundle | 3/15/1966 | Hodgson Roy S | Manufacture Of Self Sealing Shingle And Bundle |
| 3,246,063 | Method Of Making An Acoustical Tile And Ceiling Construction | 4/12/1966 | Podgurski John S | Method Of Making An Acoustical Tile And Ceiling Construction |
| 3,260,027 | Building Board Or The Like | 7/12/1966 | John Page; Straub Rupert J | Building Board Or The Like |
| 3,260,635 | Production Of Ribbed Building Board | 7/12/1966 | John Page; Straub Rupert J | Ribbed Gypsum Building Board Is Formed By Depositing A Slurry 74 Between A Flat Base Paper Sheet 78 And A Pleated Paper Sheet 18, And Expanding The Pleats (See Fig 15, Not Shown) With Gypsum To Form The Ribs In The Embodiment Shown In The Figure, The Sheet 18 Is Pleated By A Series Of Converging, Spaced Apart, Cooperating Belts 34 And 36 (See Figs 2, 6-8, Not Shown), And Applied To The Slurry Around A Grooved Roller 62, Vacuum Manifolds 72 Being Applied To The Grooves As In Fig 10 (Not Shown) To Suck The Pleats Into Conformity Therewith And To Fill Them With The Slurry Subsequent Vacuum Manifolds 82, 84, 86 Prevent Collapse Of The Just Formed Ribs The Ribbed Sheet Then Passes Along Conveyer 118 And The Ribs Are Finally Shaped By Fixed Plates (126) Carried By A Cross Bar (120) (See Fig 16, Not Shown), And Monitored To A Uniform Height By Rollers 116 The Board Then Passes Further Along Conveyer 118 Until The Gypsum Has Set And Is Cut Into Lengths By Co-Operating Saw Toothed Blades (See Figs 20 And 21, Not Shown) A Reinforcing Sheet May Be Applied Adjacent To The Pleated Sheet In Which Case Penetration Of The Slurry To The Pleats Is Facilitated By A Vibrator 115 The Reinforcing Sheet May Be A Fabric Or May Have Apertures To Enhance The Slurry Flow Therethrough (See Fig 28, Not Shown) In Alternative Embodiments The Grooved Roller Is Replaced By: (A) A Curved Forming Plate Having Recesses For The Vacuum Manifolds (Fig 11, Not Shown): (B) A Smooth Roller Followed By A Grooved Roller, The Vacuum Manifolds Being Located Therebetween (See Fig 14, Not Shown): And (C) A Series Of Spaced Endless Belts Passing Over Two Rollers, Vacuum Nozzles Being Applied To The Rib Forming Spaces Between The Belts At The First Roller (See Figs 12 And 13, Not Shown) In A Further Embodiment Slurry Is Deposited Between Two Flat Sheets And Separate Pleated Sheets Are Applied Thereto And Filled With Slurry Either Through Holes In The Upper Sheet (See Figs 26 And 27, Not Shown) Or Through Independent Nozzles As In Fig 30, Not Shown Two Building Boards May Be Bonded Together As Shown In Fig 3, If Required |
| 3,260,639 | Continuous Folding Of Paper Or The Like | 7/12/1966 | Ives Clifford E; Straub Rupert J | Apparatus For Forming Longitudinal Contours In A Web 14 Of Foldable Material Comprises A Convex Surface 16 To Receive The Web 14 And Change The Longitudinal Direction Thereof; A Supporting Surface 18 To Receive The Web 14 From The Surface 16 And Comprising A Plurality Of Longitudinally Movable Sections 46 Converging In The Direction Away From The Surface 16; A Gripping Surface 20 Facing The Surface 18 And Comprising A Plurality Of Longitudinally Movable Sections 126 In Register With Those Of The Surface 18, The Sections 126 Having Slip Resistant Surfaces To Contact The Web 14 On The Surface 18 To Prevent Relative Movement Between The Web 14 And The Sections 126; Means For Driving The Sections 46, 126 In The Direction Of The Convergence Thereof So As To Accumulate Portions Of The Web 14 Between The Sections 126; Means 164 166 Disposed Between The Sections 126 To Longitudinally Contour Such Accumulated Web Portions; And Means For Maintaining Longitudinal Tension In The Contoured Web 14 Delivered From The Exit End Of The Surfaces 18, 20 So As To Preserve The Longitudinal Contours Therein The Web 14 May Be Longitudinally Creased Prior To Passing Into The Apparatus By One Or More Creasing Rolls, Eg Steel Cylinders With Circumferential Upraised Portions, And Opposed Hard Rubber Back-Up Rolls The Web 14, Fig 3, Of Paper Or Other Foldable Material Passes From A Source 12 Over The Convex Surface 16 Comprising A Number Of Steel Cylinders 34, Fig 4, Rotatably Mounted On A Curved Shaft 36 Rotatably Mounted By Shaft Extensions 38a, 38b In The Machine Frame The Effective Curvature Of The Surface 16 In Accordance With The Convergence Of The Surfaces 18, 20 Is Adjusted By Rotating The Surface About The Extensions 38a, 38b And Tightening Locking Bolts 44a, 44b (The Latter Not Shown) The Surface 18 Comprises Fifteen Continuous "Flat-Top" Chains 46 To Which A Series Of Synthetic Resin Platelets 48 Are Secured To Form A Continuous, But Segmented, Surface At The Web Entry Extremity The Chains 46 Rotate About Sprockets 50 Mounted On A Shaft 52 Curved To Approximate To The Curvature Of The Web 14 As At Leaves The Surface 16 The Spacing Of The Sprockets 50, And Thus The Chains 46, Is Controlled By A "Scissors" Assembly, Fig 6 This Assembly Comprises Sections 70 A - B, 72 A - B, 74 A - B, 76 A - B, Centrally Pivoted On Pins 78, 80, 82 (Not Shown), 84, Which Pass Through A Central Circular Aperture 64 And Progressively Larger Slots 66a, 66b 66c, In A Plate 62 The Pins Are Threaded Into Blocks 86, 88, 90, 92, Which Slide In A Groove 68 Along The Length Of The Plate 62 Pivot Pins 94, 96, 98, 100, 102, Are Provided At The Extremities Of The Scissor Sections And The Upper Faces Of The Sections Are Undercut Below The Pivot Pins To Form Recesses Into Which Extensions 106a Of Chain Supporting Strips 106 Are Fitted The Strips 106 Are Thus Fanned Or Moved In And Out In An Arc-Like Fashion As The Assembly Is Retracted Or Extended By Handwheels 21a, 21b Which Rotate A Shaft 118 Engaging Blocks 120, Fig 6, 122, Fig 7 (Not Shown), Secured To The Blocks 86, 88, 90, 92, The Sprockets 50 Are Similarly Moved In And Out On The Shaft 52 And Are Mounted On The Blocks 86, 88, 90, 92, By Roller Bearings 114a, 114b, Fig 8 (Not Shown) The Strips 106 Are "Crowned" To Conform To The Web 14 Leaving The Surface 16, Fig 12 (Not Shown), And Progressively Dissipate To A Flat Surface As The Web 14 Leaves The Apparatus The Surface 20, Fig 3, Comprises Six Continuous "Flat-Top" Chains 126 To Which Are Secured Platelets 128 Having Surfaces With A High Coefficient Of Friction Formed By Cementing Grit, Sand Paper Or Emery Paper Thereto The Chains 126 Pass Around Sprockets 130 Rotatably Mounted In Supports 132 Each Adjustably Secured To A Shaft 134 By Set Collars 136a, 136b, Fig 2 (Not Shown), So That The Convergence Of The Chains 126 Can Be Altered Bars 140, 142 Guide The Chains 126 And Are Secured At One End To The Supports 132 And At The Other End Have Notches Therein Loosely Interfitted Over Notches In A Plate 146, Fig 22, Which Latter Notches Are Aligned With Sprockets 150 On A Shaft 152 The Web 14 Is Contoured By Profile Bars 164, Fig 9, And A Series Of Interfitting Web Guides Comprising Straddling Rollers 166 Rotatably Mounted On Holders 168 Suspended From Fixtures 22 On Bars 24, See Also Fig 1 The Bars 164 Are Continuously Contoured And Are Initially Rectangular In Cross-Section Gradually Increasing In Height To A Maximum Height At The Mid-Point And From The Mid-Point To The Downstream End The Width Narrows Slightly And The Edges Are Relieved To Allow The Pleat To Fold Under Its Own Flat Top, Figs 14-20 (Not Shown) Rolling Discs 170, Rollers Or Bars May Be Provided To Prevent The Web Material On Top Of The Bars 164 From Bowing Upwardly Hard Rubber Flattener Rollers 172, Fig 21 (Not Shown), May Be Provided At The Web-Exit Extremity The Contoured Web Passes Over A Concave Surface 30 To Eliminate Convergent Tendencies Therein The Surface 30 Is A Bowed Roller Similar To The Roller 16 Except That The Web Passes Over The Concave Portion Thereof The Web Is Then Wound Onto A Take-Up Roll 32 The Longitudinal Tension In The Web 14 Is Detected By The Influence Of Its Vertical Component On Load Detection Cells 188a 188b, Fig 21 (Not Shown), On Which Brackets 178a, 178b Carrying The Axes 176a, 176b Of The Roller 30 Rest The Signal From The Cells 188a, 188b Is Used To Control The Speed Of The Take-Up Roll 32 And /Or The Speed Of The Surfaces 18, 20 The Drive For The Surfaces 18, 20 Is Illustrated In Fig 23 (Not Shown) In A Modification (Not Shown), The Downstream Portion Of The Surface 18 Has A Concave Profile Complementary To That Of The Concave Roller 30 In Another Modification (Also Not Shown), The Curvature Of The Shaft 52 And The Surface 18 Can Be Adjusted To Match The Curvature Of The Web 14 Whenever The Convexity Of The Roller 16 Is Changed |
| 3,262,799 | Method For Making Ultrafine Calcium Sulfate Dihydrate Crystals | 7/26/1966 | Mccleary Robert E; Kinkade William A | Method For Making Ultrafine Calcium Sulfate Dihydrate Crystals |
| 3,264,238 | Coating Compositions Comprising Latex Paint, Hydrocarbon And Plastic-Surfaced Particles | 8/2/1966 | Raymond Wallen Alphonse | Coating Compositions Comprising Latex Paint, Hydrocarbon And Plastic-Surfaced Particles |
| 3,265,483 | Fiber Forming Apparatus | 8/9/1966 | Garrison Jack W; Porter William F; Schmitz Eugene F | In Forming Glass Or Like Fiber, Solid Particulate Glass Is Fed Into A Centrifugal Spinner Directly On To The Inner Wall Of A Perforated Area And Heated To The Molten State So That Molten Glass Is Forced From The Perforations By Centrifugal Force As Disclosed, A Spinner 1 On A Horizontal Shaft 2 Has A Disc 3 And Perforated Rim 4 On To Which The Glass Particles Fall From A Feed Conveyer 5, Which May Comprise A Helical Member 6 Or A Belt And Buckle Conveyer Or Vibrating Troughs The Glass Is Melted By A Plurality Of Gas Burners 7 As Shown Or By Electric Heaters Or Both The Fibers Issuing From The Perforations 17 May Be Attenuated By A Blast Of Superheated Steam From Orifices 8 In A Concentric Ring 9, The Fibers Then Being Collected On A Conveyer 18 |
| 3,265,547 | Method Of Making A Film-Covered Article | 8/9/1966 | Selbe Rexford L | Method Of Making A Film-Covered Article |
| 3,269,071 | Gypsum Composition And Building Construction | 8/30/1966 | Johnson Lucille G | Gypsum Composition And Building Construction |
| 3,281,516 | Process For Making Facing For Siding | 10/25/1966 | Russel Southwick Charles | Process For Making Facing For Siding |
| 3,294,505 | Process Of Producing Glass In A Cupola | 12/27/1966 | Garrison Jack W | Glass Is Produced By Charging A Cupola With Alternate Layers Of Coke And Briquettes Of Glass-Forming Layers Of Coke And Briquettes Of Glass-Forming The Bottom Of The Cupola To Melt At Least Part Of The Briquette Material, Which Flows Through The Bed To Form Refined Molten Glass The Glass Has A Viscosity Of Less Than 200 Poise At 2100 DEG F The Materials May Comprise Silica And Sources Of Na2O, Cao And B2O3 The Glass May Comprise, In Weight Per Cent: Sio2, 34-68; B2O3; 5-31; Cao, 5-27; Na2O, 7-28 The Briquette Materials May Be Bound Eg By An Aqueous Solution Of Sodium Silicate, Or By Aluminum Phosphate, Phenolic Resins, Or Asphaltic Emulsions The Glass May Be Used To Form Fibers |
| 3,297,601 | Substantially Dry Joint Compound Comprising Calcium Sulfate, Polyvinyl Acetate And Starch | 1/10/1967 | Earl Maynard; Ptasienski Mitchell P | Substantially Dry Joint Compound Comprising Calcium Sulfate, Polyvinyl Acetate And Starch |
| 3,298,888 | Production Of Ribbed Building Board | 1/17/1967 | Page John; Straub Rupert J. | Production Of Ribbed Building Board |
| 3,305,375 | Plaster Composition | 2/21/1967 | Jakacki Edwin J | Plaster Composition |
| 3,305,518 | Plaster Composition Containing Polyvinyl Acetate | 2/21/1967 | Jakacki Edwin J; Hampton Archie L | Plaster Composition Containing Polyvinyl Acetate |
| 3,305,993 | Sound Control Wall Construction | 2/28/1967 | Nels Nelsson | A Sound-Absorbing Partition Structure Comprises Two Parallel Rows Of Studs 16, 18, Of Channel- (As Shown) Or Box-Section, Of Steel, Wood, Or Wall-Board, The Studs Of One Row Being Staggered Equidistant Between Those Of The Other Row, And Three Vertical Partitions 10, 12 And 14, The Central Partition 12 Being Of Wallboard Mineral-, Or Fiber-Board, And The Outer Partitions Of Paper-Covered Wallboard Or, Eg, Plastered Metal Lathing The Spaces Between The Partitions May Be Filled With Mineral Fiber Batts 32 Or Foamed Plastics The Central Partition 12 Is Glued Or Screwed To The Studs, With The Joints Between And Around The Edges Of The Boards Being Caulked With A Non-Setting Filler 7, And The Outer Partitions 10 And 14 Are Screwed To The Studs And The Floor And Ceiling Runners At Their Edges And Glued To The Intermediate Studs, Or Are Fixed To The Studs By Aluminum Batten Strips Screwed To The Studs The Outer Partitions May Have A Plastics Film, Horizontal, And May Be Covered With Strips 30 Or Finished With A Tape And Joint Compound The Outer Partitions May Have A Plastics Film, Eg Of PVC, 00008" Thick, Glued Thereto |
| 3,307,651 | Acoustical Tile | 3/7/1967 | Podgurski John S. | Acoustical Tile |
| 3,307,919 | Apparatus For Making Ultrafine Calcium Sulfate Dihydrate Crystals | 3/7/1967 | Mccleary Robert E.; Kinkade William A. | Apparatus For Making Ultrafine Calcium Sulfate Dihydrate Crystals |
| 3,318,829 | Polyvinyl Acetate Compositions Containing Ammonium Borate Compounds | 5/9/1967 | Ptasienski Mitchell P | Polyvinyl Acetate Compositions Containing Ammonium Borate Compounds |
| 3,323,264 | Drywall Corner Construction With Corner Bead | 6/6/1967 | Cross Richard G | Drywall Corner Construction With Corner Bead |
| 3,341,942 | Method Of Making A Stable Electrically-conductive Sheet And Product Thereof | 9/19/1967 | Fitzpatrick Thomas J | Method Of Making A Stable Electrically Conductive Sheet And Product Thereof |
| 3,349,535 | Structural Member With An X Configuration Web | 10/31/1967 | Balinski Henry A | Structural Member With An X Configuration Web |
| 3,350,184 | Fiber Attenuating Apparatus | 10/31/1967 | Porter William F | Apparatus For Making Glass Fibers Comprises A Centrifugal Rotor Surrounded By A Burner With A Combustion Chamber And Inlets Of Truncated Conical Form Fed By Burner Nozzles Spaced From The Inlets Or With Air Holes To Permit The Induction Of Air, The Burner Discharging Across The Rotor And A Further Chamber Discharging Gaseous Blasts Co-Directionally With The Combustion Chamber To Attenuate The Fibers The Stream Of Molten Glass 25 Is Fed To The Inner Surface Of A Rotor 2 Mounted On A Shaft 4 At A Slight Angle To The Horizontal, And Its Wall Is Formed With A Large Number Of Perforations 3 Through Which The Glass Is Forced By Centrifugal Action The Rotor Is Heated By Combustion Products Issuing From An Annular Port 20 Of A Combustion Chamber 6 Surrounding The Rotor A Mixture Of Gas And Insufficient Oxidant For Complete Combustion Is Fed From A Manifold 12 Adjustably Mounted Relatively To The Combustion Chamber So As To Leave A Gap 16 Between Burners 11 And The Entrances To The Combustion Chamber To Permit The Induction Of Air To Complete The Combustion Steam Under Pressure Is Supplied To A Chamber 22 And Issues From A Slot 24 Perpendicularly To The Direction Of Movement Of The Fibers To Effect Further Attenuation A Modified Form Of The Apparatus Is Described |
| 3,359,146 | Method Of Producing Gypsum Articles Having Improved Strength To Density Ratio | 12/19/1967 | Lane Marvin K; Sheahan John S | Cast Gypsum Articles Are Produced By A Two-Stage Process In Which The Calcined Gypsum Is First Mechanically Disposed In Water At An Intensity And For A Time Sufficient To Increase The Surface Area Of The Unhydrated Calcined Gypsum In The Slurry, And Then An Accelerator Is Added And The Slurry Is Cast While The Gypsum Is Still Substantially Unhydrated The Amount Of Accelerator Must Be Sufficient To Produce A Temperature Rise Set In Not More Than 15 Min; This Is Usually 01-125% By Weight Of The Calcined Gypsum Suitable Accelerators Are Potassium, Aluminum, Zinc Or Ammonium Sulphates, Or Gypsum Dihydrate, Eg As Land Plaster Or Freshly Ground Cast Gypsum Block Preferably The Calcined Gypsum Is Dispersed To A Surface Area Of At Least 12,000 Cm2/G, And Has A Combined Moisture Content Prior To Casting Less Than 9% By Weight A Keratinaceous Retarder, Usually In An Amount 00025-0015% Of The Gypsum, May Be Present In The First Dispersion Stage; So Also May Reinforcing Materials Such As Cellulose, Synthetic Plastic And Glass Fibers, Binders Such As Flour Or Starch, And Dispersing Agents Such As Ammonium Lignosulphonate A Lightweight Cellular Gypsum Is Formed By The Incorporation Of A Premixed Foam After The Dispersion Step, Preferably In A Period Of Less Intense Mixing In Which The Accelerator Is Also Added Gypsum Board May Thus Be Produced With A Density Of 35-50 Lbs/Cu Ft |
| 3,363,663 | Combustion Chamber Burner And A Method For Its Operation | 1/16/1968 | Porter William F. | Combustion Chamber Burner And A Method For Its Operation |
| 3,369,956 | Fire-Resistant Building Covering Composition | 2/20/1968 | Schuetz Clyde C; Ericson Richard | FIRE-RESISTANT BUILDING COVERING COMPOSITION |
| 3,372,011 | Apparatus For Forming Fibers | 3/5/1968 | Porter William F. | Apparatus For Forming Fibers |
| 3,372,012 | Fiber Attenuating Burner | 3/5/1968 | Porter William F. | Fiber Attenuating Burner |
| 3,372,013 | Apparatus For Forming Fibers | 3/5/1968 | Porter William F. | Glass Fibers Are Manufactured By Allowing A Stream Of Glass 20 To Fall Freely On To The Inner Surface Of A Rotor 4 Mounted On An Axis 6 Inclined To The Vertical And Having In Its Peripheral Wall A Series Of Perforations 5 Through Which The Glass Is Forced By Centrifugal Action, The Fibers So Formed Being Attenuated By A Gas Blast From A Burner Ring 10 Which Also Feeds The Fibers To A Conveyer In A Collecting Chamber The Stream 20 Is Subjected To A Periodically Varying Lateral Air Flow From A Device 21-25 So As To Distribute The Glass Uniformly Over The Area Of Perforations The Device 21-25 May Be (As Shown) A Rotating Vane Or Apertured Disc In The Path Of The Air Stream Or A Reciprocating Poppet Valve In The Air Supply Conduit |
| 3,372,014 | Apparatus For Forming Fibers | 3/5/1968 | Garrison Jack W. | Fibers Of Glass And Like Vitreous Material Are Made By Directing A Stream Of Molten Material 14 On To A Multi-Layer 11-13 Of Foraminous Material Within And In Contact With The Wall Of A Rotor 3, The Wall Being Formed With Apertures 6 Through Which The Molten Material Is Forced By Centrifugal Action It Is Stated The Layers 11-13 Result In More Even Distribution Of The Molten Material Over The Whole Width Of The Perforated Section Wire Screen And/Or Perforated Metal Plates With The Same Or Differing Hole Spacings May Be Used For The Layers 11-13 |
| 3,373,065 | Gypsum Board-Forming Methods And Machines | 3/12/1968 | Gutzman Douglas F.; Straub Rupert J. | In A Machine For Continuously Forming Folded Edge Gypsum Plaster Board, A Lower Paper Cover 46 Is Scored With Parallel Fold Lines (50 And 52), (Figs 2-3, Not Shown) At Each Edge, Providing Board Edge Portions (54) And Strips (56) For Underlapping A Top Cover-Sheet (60), And Is Delivered Over A Support Bed 26, Which May Be A Stationary Surface Or Comprise Rollers, Which Is Provided, Along The Sides Of A First Inclined Portion 62 Thereof, With Ramp Surfaces (94a) (Figs 12-15, Not Shown) Which Converge Towards The Centre Axis Of The Web And Up Which The Edges Of The Web Rise And, In A Second Horizontal Portion 64 Where Gypsum Is Deposited From A Pipe 58 Into A Narrowed And Deepened Trough-Shaped Bottom Cover (46), Is Provided With Parallel Ramp Surfaces (96a) And Vertical Extensions (98) Thereof (Figs 16 And 17, Not Shown) Which Converge Towards The Axis Of The Web And Are Followed By Parallel Ramp Surfaces (74) And Vertical Extensions (68) (Fig 18, Not Shown), Which May Be Provided With Clips (90) To Engage Over The Edges Of The Web (46); A Third Section 66 Of The Support Bed 26 Slopes Upwardly To The Nip Between Bed 30 And Forming Roller 32 And Is Provided With Ramp Surfaces (80) (Figs 9-11, Not Shown), And Vertical Extensions (76a And 76b), Which May Also Be Provided With Guide Fingers (92) To Ensure That Edges (56) Fold Inwardly, Which Diverge Outwardly From The Axis Of The Web To Terminate Adjacent The Nip At Parallel Vertical Edge Formers (78) Of The Width Of The Finished Board The Top Cover-Sheet (60) Is Applied To The Edges (56) Above Bed Section 66 Over Adjustable Arcuate Guide 100 And Adjustable Plate 104 (Figs 5-7, Not Shown) Which Extends To The Roller Nip And Is Provided With Ramp Surfaces 106a, 106c At Its Edges To Bring The Edge Portion Of The Top And Bottom Sheets Into Early Contact An Applicator 112 Coats The Contacting Edges Of The Cover (60) With Adhesive The Bed Section 62 May Slope Downwardly To Section 64 Or May Be Coplanar Therewith; Stationary Plates May Be Substituted For Rollers 32 And Edge Formers May Be Employed To Produce Tongue- And-Grooved Board The Ramp Surfaces (74) Are Mounted, Via An Extension (68), On Support Brackets (70, 71) (Fig 4, Not Shown) Adjustably Supported On The Machine Bed Frame And The Ramp Surfaces (80) Are Adjustably Pivoted To Extensions (68) Via Extensions (76a, 76b) The Delivery Of The Slurry Into The Narrowed And Deepened Trough Formed By The Bottom Sheet (46) And The Application Of The Top Sheet (60) Thereto Contains The Slurry Within The Sheets (46 And 60) And Out Of Contact With The Machine Parts |
| 3,378,246 | Calcining Kettle Discharge Apparatus | 4/16/1968 | Leding Francis R. | Apparatus For Discharging A Gypsum Calcining Kettle Comprises An Open-Ended Conduit 26 Attached To The Wall 16 And Opening At The Top Into A Valve Chamber 38 Incorporating Slide Valves 40 And 42 Respectively Controlling Openings Leading Back Into The Kettle Or To A Discharge Shoot 36, A Pipe 47 Opening Into The Base Of The Conduit 46 To Supply Fluidizing Gas, Eg Air Or Steam In A Modification, Fig 2 (Not Shown), The Conduit Is Disposed Outside The Kettle Wall, So That Three Sides Of It Are Exposed To The Heating Gases |
| 3,379,608 | Water-Felted Mineral Wool Building And Insulation Product Including Nonfibrous Cellulose Binder | 4/23/1968 | Roberts James R.; Wendt Frank J. | A Unified Water-Felted Building And Insulation Product Comprises Mineral Wool, Thermally Expanded Perlite And A Dewatered And Dried Cellulosic Binder The Binder May Be Made By Subjecting An Aqueous Slurry To A Series Of Refining And Gelatinizing Steps To Yield An Aqueous Gelatinous Product Of Low Freeness The Product May Also Contain Ceramic Clay, Wax, Alum Or Boric Acid The Products Can Be Used For Thermal Or Acoustic Insulation And May Be Fireproof Two Or More Sheets Of The Product May Be Laminated Together |
| 3,379,609 | Water-Felted Building Product Including Nonfibrous Cellulose Binder | 4/23/1968 | Roberts James R | A Unified Building Product In Sheet Form Comprises Thermally Expanded Perlite Bonded By A Dewatered And Dried Gelatinous Binder Which, In Its Original Hydrated State, Has A Low Freeness The Binder May Be Made By Subjecting An Aqueous Slurry Of Cellulosic Fibers To A Series Of Refining And Gelatinizing Steps The Product May Also Contain Minor Proportions Of Ceramic Clay, Boric Acid As A Fire-Retardant, A Wax, Eg Microcrystalline Or Paraffin Wax, For Water-Repellency, Or Alum It May Be Used As Insulating Floor Underlay, Ceiling Or Wall Tiles Or Insulating Board |
| 3,381,439 | Structural Member | 5/7/1968 | Jr. Frederick A. Thulin, | Structural Member |
| 3,383,271 | Water Repellent Gypsum Board | 5/14/1968 | Roberts James R; Long William J | A Water-Resistant Paper Covered Gypsum Board Has At Least One Of Its Surface Paper Sheets Bearing A Dried Composition Comprising A Tall Oil And An Aliphatic Hydrocarbon Wax, Together With A Drying Oil And/Or A Fatty Acid Ester Of Pentaerythritol The Composition May Be Applied As An Emulsion To The Paper Sheet Before Formation Of The Board And Dried In Situ On The Board By The Application Of Heat The Gypsum Core Preferably Contains Asphalt And Wax Specified Hydrocarbox Waxes Are Petroleum Waxes, Low Molecular Homo- And Co-Polymers Of Ethylene And Propylene, Pentadiene Polymers And Methylated Paraffins Specified Drying Oils Are Linseed, Soya Bean, Oiticica, Tung And Safflower Oils |
| 3,384,924 | Apparatus For Forming Shingles | 5/28/1968 | Schuetz Clyde C; Norman Jr Charles R | Apparatus For Forming Shingles |
| 3,387,960 | Apparatus For Distributing Melt And Forming Fibers Therefrom | 6/11/1968 | Erdenberger Peter | Apparatus For Distributing Melt And Forming Fibers Therefrom |
| 3,393,116 | Gypsum Composition Having Dehydration Resistant Characteristics | 7/16/1968 | Larson Kenneth R. | Gypsum Composition Having Dehydration Resistant Characteristics |
| 3,398,811 | Acoustical Tile With Vibratile Membrane Extending Into Fissures | 8/27/1968 | Muller Robert E. | Acoustical Tile With Vibratile Membrane Extending Into Fissures |
| 3,415,910 | Calcined Gypsum And A Method For Its Preparation | 12/10/1968 | Kinkade William A.; Mccleary Robert E. | Calcined Gypsum And A Method For Its Preparation |
| 3,435,582 | Wallboard Construction | 4/1/1969 | Ptasienski Mitchell P; Disney Virgil V | Wallboard Construction |
| 3,444,800 | Ventilating Partition Construction | 5/20/1969 | Nelsson Nels | Ventilating Partition Construction |
| 3,445,975 | Sound Control Partition With Resilient Support Studs | 5/27/1969 | Nelsson Nels | Sound Control Partition With Resilient Support Studs |
| 3,454,456 | Fire Resistant Plaster Product | 7/8/1969 | Willey Grant S | Fire Resistant Plaster Product |
| 3,459,620 | Apparatus For Producing Cast Gypsum Articles | 8/5/1969 | Mccleary Robert E; Decker Robert L | Mixing-A Mixer For Gypsum Slurry Preparation Comprises A Housing Having Inlets 11, 12, 13 For Gypsum, Water And Foam And A Rotor Disk 17 With Upstanding Peripheral Rings 19 Interdigitating With Rings 21 Depending From The Housing Cover 10c There Are Also Pegs 18, 18a On The Disc And Cover And 19a On The Rings 19 The Outermost Ring 22 Has Teeth 26 With Beveled Leading Edges 27 Which Assist Centrifugal Force In Urging The Slurry Outwardly Into A Relief Channel 25 And Thence Into A Vertical Conduit 14 In Which May Be A Screw Conveyer 30 Distributing-The Slurry Enters A Central Inlet 33 In A Horizontal Casing 15 Containing Two Screw Conveyers 45 (Only One Being Depicted) Which Convey It Towards The Ends Of The Casing So That It Is Discharged As A Sheet Through A Longitudinal Slot 46 On To A Worktable 1 Where It Is Encased Between Two Paper Webs 3, 7 To Form A Gypsum Board 8 |
| 3,461,638 | Structural Member | 8/19/1969 | Balinski Henry A | A Structural Member, Such As A Stud 20 To Recline Wall Board 22, Comprises A Web Portion 28, At Least One Flange 26 And At Least One Truss Element 36 Struck From The Web And Disposed Adjacent A Distal Portion Of The Flange To Brace Same The Truss Elements 36 May Take On A Number Of Different Configurations For Details Of Which The Remaining Figures, (Not Shown), Should Be Referred To To-Gether With Locking Interengagement Between The Elements 36 And The Flanges The Cut Out Defining The Truss Element May Be Shaped As At 52 To Permit Passage Of A Service Conduit 53 The Member Is Preferably Made Of Sheet Metal And Provided With Re-Entrant Portions' Such As 32b, 34b To The Flanges For Reinforcing Purposes |
| 3,462,287 | Method Of Preparing Coated Asbestos Cement Shingle And Product Thereof | 8/19/1969 | Marshall Herbert A | METHOD OF PREPARING COATED ASBESTOS CEMENT SHINGLE AND PRODUCT THEREOF |
| 3,476,302 | Wallboard Attachment And Apparatus Therefor | 11/4/1969 | Hurd Jerome N | Wallboard Attachment And Apparatus Therefor |
| 3,484,222 | Method And Apparatus For Distributing Molten Material Onto A Spinner Surface | 12/16/1969 | Porter William F | Method And Apparatus For Distributing Molten Material Onto A Spinner Surface |
| 3,485,714 | Fibrous Board Products Of Improved Surfaces And Process | 12/23/1969 | White Kendall D Jr | Fibrous Board Products Of Improved Surfaces And Process |
| 3,486,965 | Sag-Resistant Gypsum Board And Method Therefor | 12/30/1969 | Janninck Donald R | Sag-resistant Gypsum Board And Method Therefor |
| 3,494,824 | Foamed Water Felted Insulation And Building Product | 2/10/1970 | Roberts James R | Foamed Water Felted Insulation And Building Product |
| 3,498,404 | Fire Resistant Porous Acoustic Board With Perforations Through Metal Facing Sheet | 3/3/1970 | Roberts James R | A Fire-Resistant Acoustic Tile Comprises A Metal Facing Sheet Adhered By Acrylic Adhesive To A Porous Backing Board, The Sheet Extending To # Inch Or Less From Each Edge Of The Board And Perforations Being Provided Through The Sheet And Board To 1/16 Inch Or Less From The Rear Face Of The Board The Metal Sheet May Be Steel Foil And The Backing Board May Comprise Mineral Wool With Starch Binder, Gel Binder And Perlite A Concave Bend May Be Provided At The Faced Surface By Heating The Board To 175-225 F And The Sheet To 150-200 F And Laminating While Hot The Back Surface Of The Board May Be Coated With Polyvinyl Alcohol Paint And The Sheet May Be Coated With Metal Primer 1400 Perforations Per Square Foot May Be Provided |
| 3,503,726 | Method And Apparatus For Dynamically Distributing Molten Material Onto A Spinner Surface | 3/31/1970 | Weck Dieter O | Method And Apparatus For Dynamically Distributing Molten Material Onto A Spinner Surface |
| 3,507,684 | Method Of Making Decorated Wallboard | 4/21/1970 | Wallen Alphonse R | Plasterboard Which Is Continuously Molded By Depositing An Aqueous Slurry Of Calcined Gypsum, Which May Be A Foamed Slurry, On To A Paper Face Sheet On A Moving Belt And Then Applying A Back Sheet On To The Slurry And Around Which The Edges Of The Face Sheet Are Folded And Bonded, Is Coated On The Back Sheet, After The Plaster Has Set But Before The Core Has Dried, By A Coating Roll With An Aqueous Composition Which Is Rendered Permeable To Water Vapor By The Removal Of Water Therefrom Whereafter The Board Is Dried By Heating Thereof To Drive Moisture From The Core Through The Coated Paper Sheet Water May Be Removed From The Coating By Wicking Into The Underlying Paper Sheet Or By Evaporation, Eg In A Gas Circulating Oven, Desirably At A Temperature Above 250 F And Preferably Above 450 F And, When The Coating Includes Sand Particles, Permeability Is Increased By The Pressing Thereof Into The Paper The Coating Preferably Comprises A Polyvinyl Acetate Emulsion Binder, With Or Without An Acrylic Emulsion To Achieve A Higher Viscosity, Of Which Suitable Formulations Are Given Which Include Clay, With And Without Sand |
| 3,522,683 | Wall Assembly | 8/4/1970 | Wise John K | Wall Assembly |
| 3,525,189 | Structural Member And Wall Assembly Including Same | 8/25/1970 | Nels Nelsson | Structural Member And Wall Assembly Including Same |
| 3,527,447 | Process For The Preparation Of Calcined Gypsum | 9/8/1970 | Kinkade William A; Mccleary Robert E | Process For The Preparation Of Calcined Gypsum |
| 3,557,651 | Film-Cutting Apparatus | 1/26/1971 | Byrley Lewis R | Apparatus For Severing A Plastics Web 10 Adhered To Spaced Boards 12, Comprises A Carriage 24 Provided With A Catch 70 For Contacting The Edge Of A Board 12 So That The Carriage Is Moved With The Board Allowing Blades 56 Mounted On The Carriage To Penetrate The Web And Move Apart To Sever The Web Between The Boards The Carriage Comprises A Rail 50 On Which The Blades 56 Are Slidably Mounted And A Rail 52 On Which The Catch 70 Is Resiliently Mounted, Both Rails Having Rollers 50R, 52R, Respectively, Which Engage Camming Tracks 26u, 26l, 36u, 36l, On Both Sides Of The Carriage Boards 12, Eg Gypsum Wallboards, Have Adhesive Applied, And A Web 10 Of Vinyl Plastics Rolled On To Their Upper Surfaces The Covered Boards 12 Are Moved By An Endless Conveyer 14 Over Plates 13 Between Which Is Mounted The Catch 70 Which Is Biased By A Spring (65), Fig 3 (Not Shown), Into Engagement With The Leading Edge Of A Board 12 At This Point, The Rollers 50R And 52R Are Positioned As Shown In Fig 6 And On Movement Of The Carriage With The Board 12, The Roller 50R Moves Down A Ramp 28 Causing The Blades 56 To Penetrate The Web The Blades 56 Are Moved Apart By A Cam Track 68 Engaging Rollers 60 Connected To The Blades On Completion Of The Transverse Cut, The Roller 50R Moves Up A Ramp 30 Opening A Normally Closed Gate 34 To Lift The Blades 56 From The Material And The Roller 52R Drops Through A Gap 37 On To The Track 361 To Lower The Catch 70 And Allow The Carriage To Return To Its Initial Position Under The Action Of A Spring 74 The Blades Are Moved Towards Each Other During The Return Stroke, Either By A Spring 61, Or By An Additional Set Of Rollers 60 Engaging The Insides Of The Tracks 68, Fig 3a (Not Shown) |
| 3,561,180 | Structural Member And Wall Assembly Including Same | 2/9/1971 | Wise John K | An Elongated Unitary L-Shaped Metal Member Has One Flange Provided With A Series Of Strike-Outs Forming Tabs Which Are Integral With The Flange Along The Distal Edge Portion Of The Flange And Which Are Bendable To A Position Normal To Such Flange For Securing The Member To A Wall The Resulting Member Serves As A Furring Member For Retaining Insulating Panels And For Supporting Wallboard Finishing Panels On A Masonry Exterior Wall |
| 3,562,097 | Multi-Ply Cylinder Paper Of Reduced Machine-To-Cross Direction Tensile Strength Ratio | 2/9/1971 | Hazmburg Romulus S Von | Porosity Of Multiply Cylinder-Machine Paper Sheets Is Enhanced, Making Them Suitable For Cover Sheets For Gypsum Board, By Including In The Sheet Fibers Of Rock Wool, Slag Wool Or Glass In An-Amount Of 2 To 20% By Weight Of The Whole Sheet, And Not More Than 43 By Weight Of Any One Ply The Addition Also Increases The Freeness Of The Stock In An Example A Seven-Ply Sheet Has Its Surface Plies Made From Cellulosic Fibers Only, And Its Inner Plies Made Of Cellulosic Fibers To Which Various Amounts Of Mineral Wool Are Added; And Sodium Aluminate And Alum Are Added To Set The Size |
| 3,568,391 | Casing Beed For Use In A Joint Construction | 3/9/1971 | Conway Donald J | A Stucco-Covered, Curtain Wall Construction Employs A Joint Including An Elongate L-Shaped Casing Bead And An Elongate Generally Wing-Shaped Drainage Cap Member The Two Joint Components Form A Horizontally-Disposed, Structurally Yielding Joint Between Outer Covering Panel Sections The Two Joint Components Provide Ventilation And Water Drainage Between The Windward And Leeward Sides Of The Wall |
| 3,572,254 | Bridge Plate Construction | 3/23/1971 | Slager Richard E | Bridge Plate Construction |
| 3,573,947 | Accelerator For Gypsum Plaster | 4/6/1971 | Kinkade William; O'Neill Eugene Edward | A Plaster Accelerator Is Obtained By Grinding A Charge Containing Gypsum And A Sugar Until The Surface Area Is Substantially Increased And Heating Under Conditions Precluding Dew Point Formation To Calcine Partly The Dihydrate The Charge Can Be Anhydride Containing Combined Water And So Equivalent To Having A Gypsum Content, Or It Can Be A Mixture Of Eg Gypsum, Sugar And Sand Boric Acid Is Optional |
| 3,623,290 | Partition Wall | 11/30/1971 | L. Downing | Partition Wall |
| 3,652,309 | Retarded Gypsum Plaster For Use In Long Set Aggregated Mortar Applications | 3/28/1972 | Lane Marvin K | The Process Of Making A Gypsum Plaster Possessing A High Degree Of Stability Over Extended Periods Of Time And Having A Set Time Of At Least 4 Hours In Aggregated Mortar Applications By Providing A Specially Sized Calcined Gypsum Having A Particle Size That Is Essentially All Finer Than 32 Microns, And Mixing Said Specially Sized Gypsum With Retarder, Accelerator And Other Additives To Give The Desired Properties When Mixed With Water And Aggregate |
| 3,657,853 | Method Of Mounting Furring Channel | 4/25/1972 | John K. Wise | An Elongated Unitary L-Shaped Metal Member Has One Flange Provided With A Series Of Strike-Outs Forming Tabs Which Are Integral With The Flange Along The Distal Edge Portion Of The Flange And Which Are Bendable To A Position Normal To Such Flange For Securing The Member To A Wall The Resulting Member Serves As A Furring Member For Retaining Insulating Panels And For Supporting Wallboard Finishing Panels On A Masonry Exterior Wall |
| 3,666,581 | Method Of Making Dried Gypsum Articles Having Improved Strength To Density Ratio | 5/30/1972 | Lane Marvin K | Method Of Making Dried Gypsum Articles Having Improved Strength To Density Ratio |
| 3,672,108 | Joint Construction | 6/27/1972 | Conway Donald J | A Stucco-Covered, Curtain Wall Construction Employs A Joint Including An Elongate L-Shaped Casing Bead And An Elongate Generally Wing-Shaped Drainage Cap Member The Two Joint Components Form A Horizontally-Disposed, Structurally Yielding Joint Between Outer Covering Panel Sections The Two Joint Components Provide Ventilation And Water Drainage Between The Windward And Leeward Sides Of The Wall |
| 3,682,667 | High Temperature Insulation Block | 8/8/1972 | Roach Heber C; Roberts James R | High Temperature Insulation Block |
| 3,693,303 | Removable Grid Member | 9/26/1972 | L. Downing, D. Mieyal | Removable Grid Member |
| 3,694,298 | Decorated Gypsum Board And Method Of Making Same | 9/26/1972 | Veschuroff William C; Mustoe Robert M | Decorated Gypsum Board And Method Of Making Same |
| 3,702,044 | Cavity Shaft Wall | 11/7/1972 | Balinski Henry A | A Cavity Shaft Wall Capable Of Withstanding Pressure Loading, Comprising Two Spaced Rows Of Wall Members Spaced By Studs Having Means For Engaging Three Vertical Sides Of Each Edge Of The Members Comprising The Row Exposed To The Shaft The Means Preferably Are Provided By Side Flanges Which Open Out Into The Stud, The Flanges Being Bent To Form Pockets And Being Free To Expand As The Exposed Members Shrink, As In A Fire Insulating Wool And Electrical Utilities Can Be Accommodated In The Air Gap Formed By The Spaced Rows |
| 3,707,060 | Building Assembly And Components | 12/26/1972 | Jansen Charles L Jr | A Plurality Of Erect Panel Units Having Complementary Interfitting Resilient Gaskets Along Their Vertical Edges Form A Portable Partition, A Fixed Retainer Engages The Upper Ends Of The Panel Units And Permits Movement Of These Upper Ends Transversely Of The Partition While Permitting Vertical Movement Of The Individual Panel Units, And Means On The Lower Ends Of The Panel Units Support These Units On A Carpeted Floor Surface And Engage The Carpeting To Restrain The Lower Ends Of The Units Against Movement Transversely Of The Partition The Interfitting Resilient Edge Gaskets Provide Resistance To Relative Transverse Movement Between Assembled Panel Units And Permit Relative Vertical Movement Between Adjacent Panel Units For Disengaging Any Selected Unit From The Floor Surface, While Being Sufficiently Resilient To Permit Removal And Replacement Of An Individual Unit In An Assembled Partition Without Antecedent Movement Of The Adjacent Units |
| 3,707,818 | Shaft Cavity Wall And Stud | 1/2/1973 | Nelsson N | A Cavity Wall And Stud Wherein The Stud Is Characterized By A Base Exposed To The Corridor, And Two Side Flanges Which Penetrate Into The Wall And Thereafter Diverge Without Closing Upon Themselves Or Each Other, The Ends Of The Flanges Being Used To Anchor The Facing Layer Of The Wall Resiliency Can Be Introduced Into The Flanges To Reduce Sound Transmission |
| 3,712,015 | Integral Stud And Bracket Standard For Use In A Wall Construction | 1/23/1973 | Nelson N | A Stud And Wall Assembly Constructed Therewith For Supporting Shelf Brackets And The Like, The Stud Having As An Integral Part Thereof, Both A Slotted Flange For Engaging Shelf Brackets, And As An Extension Of The Flange, Flat Surfaces For Engaging Partition Members Which Make Up The Wall The Slotted Portion Of The Flange May Be Recessed Within The Stud Or Projected Therefrom, So As To Conceal Or Expose, Respectively, The Slotted Portion Additional Bracket-Supporting Hooks Can Be Extruded As Part Of The Flange The Over-All Cross-Sectional Configuration Of Most Of The Embodiments Of The Stud Is An "H"-Shaped Configuration |
| 3,723,146 | Retarded Gypsum Plaster For Use In Long Set Aggregate Mortar Applications | 3/27/1973 | Lane M | Retarded Gypsum Plaster For Use In Long Set Aggregate Mortar Applications |
| 3,729,883 | Demountable Partition Assemblies And The Studs Therefor | 5/1/1973 | Thompson P | An Improved Stud And Demountable Partition Assembly Or Wall Constructed Therewith, The Stud Being Characterized By A Single Partition Member Interengaging Means Projecting From One Edge, And Double Partition Member Interengaging Means From The Other Edge, Whereby The Wall Is Constructed Progressively Up To That Stud, Leaving The Partition Member Adjacent To The Single Partition Member Free Of Any Connection To The Improved Stud And Thereby Completely Accessible Independently From The Remaining Wall Portions |
| 3,730,468 | Furniture Supporting System | 5/1/1973 | Magnusen D | Bracket Members And Standards For Hanging Furniture Elements From Walls, The Members And Standards Interengaging Each Other To Permit The Bracket Members To Be Slid Into An Infinite Number Of Vertical Positions Retention Of The Bracket Members At Any Desired Position Is Accomplished By Loading The Bracket Member With A Furniture Element, The Resultant Binding Between The Bracket And Standard Being Sufficient Without The Use Of Fasteners To Retain Said Desired Position The Bracket Members Are Interchangeable Between Different Modes Of Mounting The Standards |
| 3,732,657 | Demountable Partition Assembly And Studs Therefor | 5/15/1973 | Nelsson N | A Demountable Partition Assembly Featuring Two Rows Of Partition Members, Such As Wallboard Panels, And Floating Studs, Each Stud Of Which Interchanges Only One Row And Abuts Against, Without Interengaging, The Other Row One Form Of The Stud Interengages By A Single Flange A Kerf In Only One Of The Partition Members, Permitting Selective Accessibility To That Partition Member A Reinforcing Tab Or Flange Is Formed In The Stud For Abutting The Back Surface Of The Interengaged Partition Member |
| 3,732,908 | Hot-Roll Embossing Method | 5/15/1973 | White K | A Method Of Forming Depressions In Cellulosic Panels By Burning Patterned Holes In Only A Portion Of The Surface, Preferably Using Rollers Thereafter The Panel May Be Treated At The Burned Areas To Prevent Bleed-Through |
| 3,744,204 | Unit Platform | 7/10/1973 | Eshler D | A Unit Platform Comprising A Grating Supported At Three Sides Thereof By A Portion Of A Frame Underlying The Grating, The Supporting Portions Being Outwardly Lanced Projections Giving Under-Support To The Grating While Remaining Integrally Attached At Their Ends To The Frame |
| 3,746,270 | Double-Revolving Disc Refiner | 7/17/1973 | Moore R | Double Revolving Disc Refiner |
| 3,751,291 | Fire Resistant Asphalt Roofing | 8/7/1973 | Schroeder J | A Fire-Resistant Roof Covering Comprising A Mineral Wool Felt Base Saturated With Asphalt And Containing 50-70 Percent Mineral Wool, Said Base Being Coated With A Composition Consisting Of About 49 Percent Asphalt, About 40 Percent Ground Trap Rock Filler And About 11 Percent Asbestos |
| 3,768,224 | Ceiling Grid System With Interlocked Joints | 10/30/1973 | R. Curtis | Ceiling Grid System With Interlocked Joints |
| 3,778,939 | Integral Stud And Bracket Standard And The Assembly Thereof In A Wall Construction | 12/18/1973 | Nelsson N | A Stud And Wall Assembly Constructed Therewith For Supporting Shelf Brackets And The Like, The Stud Having As An Integral Part Thereof, Both A Slotted Flange For Engaging Shelf Brackets, And As An Extension Of The Flange, Flat Surfaces For Engaging Partition Members Which Make Up The Wall The Slotted Portion Of The Flange May Be Recessed Within The Stud Or Projected Therefrom, So As To Conceal Or Expose, Respectively, The Slotted Portion Additional Bracket-Supporting Hooks Can Be Extruded As Part Of The Flange The Over-All Cross-Sectional Configuration Of Most Of The Embodiments Of The Stud Is An "H"-Shaped Configuration |
| 3,778,947 | Fire-Rated Grid Member With Controlled Expansion Means | 12/18/1973 | G. Sauer | Fire-Rated Grid Member With Controlled Expansion Means |
| 3,782,295 | Cargo Restraining Bar | 1/1/1974 | Balinski H | A Load Bracing Apparatus Adapted To Fit A Multiplicity Of The Belt Rail Systems Used To Support And Restrain Freight In Transportation Vehicles Such As Railway Freight Cars, Trucks And Ships |
| 3,793,139 | Process Of Making Hardboard | 2/19/1974 | J. Caresio | Process Of Making Hardboard |
| 3,793,841 | Method Of Making And Using Soil Stabilizer | 2/26/1974 | Dozsa O | An Agglomerate Of Cao And Ca(OH)2 The Thickness Of Which Does Not Exceed About 02 Inches, Characterized By The Ability To Disintegrate In The Presence Of Water Into Particles Sufficiently Small As To Stabilize Soil The Agglomerate Is Produced By Continuously Compacting At Room Temperature A Mixture Of The Two Components Wherein The Amount Of Cao Is Between 40 And 60 Percent Of The Total Weight |
| 3,807,947 | Leveling Acid Or Direct Dyes With Chlorine Decolored Acid Or Direct Dye Wastes | 4/30/1974 | Lasas L | A Process For Treating Dyehouse Waste Water, Containing Leftover Dyestuff, For Reclamation And Reuse For Consecutive Dyeing And/Or Rinsing Or The Like, In Which Halogen, Such As Gaseous Chlorine, Is Added To Decolorize The Chromophoric Functional Group Of The Dystuff The Decolorized Waste Water Is Then Recycled Into The Dyeing System |
| 3,810,340 | Integral Stud And Bracket Standard | 5/14/1974 | Nelsson N | A Stud And Wall Assembly Constructed Therewith For Supporting Shelf Brackets And The Like, The Stud Having As An Integral Part Thereof, Both A Slotted Flange For Engaging Shelf Brackets, And As An Extension Of The Flange, Flat Surfaces For Engaging Partition Members Which Make Up The Wall The Slotted Portion Of The Flange May Be Recessed Within The Stud Or Projected Therefrom, So As To Conceal Or Expose, Respectively, The Slotted Portion Additional Bracket-Supporting Hooks Can Be Extruded As Part Of The Flange The Over-All Cross-Sectional Configuration Of Most Of The Embodiments Of The Stud Is An H-Shaped Configuration |
| 3,813,312 | Process For Making Gypsum Board | 5/28/1974 | W. Kinkade, C. Roe | Process For Making Gypsum Board |
| 3,820,970 | Less Dusty Granular Gypsum Product And Process | 6/28/1974 | Watkins K | Less Dusty Granular Gypsum Product And Process |
| 3,830,045 | Compact Air Filter | 8/20/1974 | Copenhefer J | A Compact Fibrous Glass Air Filter Unit Is Provided Having A Rectangular Frame Holding An Air Filter; The Frame Having An Edge Flange Portion Having A Top And A Bottom Half Folded Over The Filter, Said Flange Flaring Outwardly From The Filter; Tab Portions On The Top Or Bottom Flange Portions To Form Tongue-And-Groove Interlocking At The Intersection Of The Flange Portions; A Scrim Covering Above The Filter; And A Bottom Covering Of Closely Perforated Sheet; The Scrim, Filter And Perforated Sheet All Being Adhesively Or Mechanically Adhered Between The Top Half And Bottom Half Portions Of The Flange |
| 3,835,614 | Suspension System | 9/17/1974 | L. Downing | Suspension System |
| 3,844,085 | Studs For Demountable Partition Assembly | 10/29/1974 | Marchello M | Sheet Metal Studs In A Demountable Partition Assembly Are Provided With Tabs Interlocking Adjacent Pairs Of The Studs At Each Joint Against Relative Lateral Movement, To Prevent Lipping At The Panel Joints The Tabs Are Resiliently Retractable And Are Formed With Angularly Oriented Outer Surfaces To Permit Forcible Retraction Of The Tabs By Sliding A Thin Tool Blade Between A Pair Of Such Interlocked Studs |
| 3,847,635 | Thixotropic Cementitious Composition And Process | 11/12/1974 | Lange R; Kobeski W | Cementitious Mixtures Of Alpha Calcium Sulfate Hemihydrate, Portland Cement And A Dispersing Agent Are Rendered Thixotropic By The Inclusion Of Small Amounts Of Crystallized Magnesium Sulfate |
| 3,847,637 | Stable Wax Sizing Composition And Method Of Sizing Cellulosic Fiber Products | 11/12/1974 | Luszczak M | A Stable Aqueous Wax Emulsion Sizing Composition Comprising A Continuous Aqueous Phase; A Waxy Material Dispersed Phase Containing Up To About 45 Percent By Weight Of Wax; About 10-15 Percent By Weight Based On The Weight Of The Waxy Material Of Clay; And A Small Amount Of Sulfuric Acid The Sizing Composition May Be Applied To A Variety Of Cellulosic Products Of A Fibrous Nature To Render The Finished Product Water-Resistant Or Waterproof |
| 3,852,081 | Cement Compos Containing Alpha Gypsum Having Improved Long Term Durability | 12/3/1974 | C. Lehman | Cement Compos Containing Alpha Gypsum Having Improved Long Term Durability |
| 3,859,765 | Demountable Partitions And Studs Therefor | 1/14/1975 | Nelsson Nels | A Demountable Partition Assembly Featuring Independent But Mutually Reinforcing Mounting Of The Two Rows Of Panels Defining The Partition Assembly, The Studs Of One Row Being Confined Within Those Of The Other Row To Permit Opposite Joints To Be Directly Aligned |
| 3,865,315 | Process For Separating Fibrous Material | 2/11/1975 | Roberts | Fibrous Material Such As Mineral Wool Fiber Is Separated From Mixtures Of The Fibrous Material And Adhered Shot Without Substantially Destroying The Fiber Length By Passing A Water Suspension Of The Fibrous Material-Adhered Shot Through An Attrition Device To Gently Abrade The Fiber-Shot Interface; Further Diluting The Abraded Mixture With Water; Gently Agitating The Diluted Mixture; And Decanting To Separate The Substantially Unbroken Fibers From The Now Separated Shot |
| 3,866,376 | Metal Clad Gypsum Walls | 2/18/1975 | Nelsson | A Demountable Wall Assembly Comprising Two Rows Of Panels Having Metal Sheets Adhered To The Faces Thereof, And Characterized By The Vertical Edges Of The Sheet Extending Across The Space Between The Rows To Support The Panels Without The Need For Separate Studs |
| 3,872,639 | Fire-Resistant Shaft Wall | 3/25/1975 | Crumbaugh | A Fire-Resistant Wall Comprising Studs And Metal Pans Extending Between The Studs, Disposed On One Side Of The Wall, The Studs And Pans Cooperating To Form A Temporary Wall Which May Be Finished By The Inclusion Of Gypsum Panels Disposed Between The Pans And The Studs, And Other Panels Attached To The Side Of The Studs Opposite To The Pan Side Of The Wall |
| 3,877,195 | Panel Attachment System | 4/15/1975 | Marchello | A Framing Assembly And Method Which Braces The Back Of The Panel With Metal Strips Attached To The Sides Of Adjacent Framing Members After They Are Attached To The Panel, To Permit Secure Bracing Regardless Of Warping Present In The Framing Members |
| 3,882,652 | Demountable Partition Assembly And Studs Therefor | 5/13/1975 | Marchello | Sheet Metal Studs In A Demountable Partition Assembly Are Provided With Tabs Interlocking Adjacent Pairs Of The Studs At Each Joint Against Relative Lateral Movement, To Prevent Lipping At The Panel Joints The Tabs Are Resiliently Retractable And Are Formed With Angularly Oriented Outer Surfaces To Permit Forcible Retraction Of The Tabs By Sliding A Thin Tool Blade Between A Pair Of Such Interlocked Studs |
| 3,891,453 | Asbestos-Free Joint Compounds | 6/24/1975 | Williams | A Joint Compound Which Is Preferably Asbestos-Free, For Use In Finishing Joints Between Wallboards, Comprising A Filler, A Binder, And Any Two Or All Three Of A Water-Holding Agent; A Slip-Inducing Colloid; And A Non-Swelling Clay Having Sufficient Pseudoplasticity To Render The Composition Non-Leveling |
| 3,893,269 | Curbed Walls Comprising Pairs Of Planar Panels And Studs Therefore | 7/8/1975 | Nelsson | A Curved Wall Formed From Generally Circular Segments Comprising Planar Panels Non-Collinearly Mounted By Studs Having Side Flanges Interengaging The Edges Of The Panels, And Means Contacting The Edges But Not The Face Of The Panels, For Preventing Improper Convergence Of The Panels |
| 3,907,445 | Self-Aligning Joist Hanger For Structural Steel Framing | 9/23/1975 | Wendt | A Hanger For Mounting A Hollow Metal Joist Perpendicular To Headers And The Like Is Disclosed The Hanger Has A U-Shaped Top Flange For Hanging The Hanger Over A Header And The Hanger Also Having A Backplate With Side Flanges Projected Outward Therefrom And With The Side Flanges Each Being Divided From The Backplate Outward At A Point Intermediate To The Top And Bottom Thereof With The Upper Portion Of Each Of The Two Side Flanges Being Spaced Together In Order That The Hollow Metal Joist May Rest On The Upper Portion Of The Side Flanges While The Joist Is Being Attached To The Remaining Portion Of At Least One Of The Side Flanges The Side Flanges Are Not Connected Other Than By The Backplate Thereby Enabling Them To Accommodate Any Height Joist |
| 3,907,634 | Process For Smoothing Water-Felted Articles | 9/23/1975 | Izard | A Process For Smoothing Water-Felted Board, Comprising Passing The Wet Mat Under A Free-Floating Roller The Diameter Of Which Does Not Exceed About 1 Inch |
| 3,908,062 | Fire-Resistant, Composite Panel And Method Of Making Same | 9/23/1975 | Roberts James R | A Fire-Resistant, Composite Panel Comprising A Core Of Rigid Mineral Fiber Board Having On One Or Both Of Its Surfaces A Layer Of Gypsum Material Bonded Thereto, And In Some Embodiments, A Layer Of Paper Bonded To One Or Both Of The Layers Of Gypsum Material Opposite The Core A Method Of Making A Fire-Resistant, Composite Panel Including Applying A Thin Layer Of A Settable Gypsum Slurry To One Or Both Surfaces Of A Rigid Mineral Fiber Board, And Alternatively, Applying Layers Of Paper To One Or Both Of The Thin Layers Of Gypsum Material Opposite The Surface Of The Rigid Mineral Fiber Board, And In Either Case, Applying Heat To The Layer Or Layers Of Gypsum Material To Cure It |
| 3,908,327 | Insulated Structural Member | 9/30/1975 | Quigg Paul S | An Improved Fire Resistant Structural Member Comprising The Member And Layers Of Insulation Attached To The Member By Means Which Independently Secure Two Overlapping Layers Of Insulation |
| 3,908,328 | Runner And Method Of Making Same | 9/30/1975 | Nelsson Nels | A Runner For Assembling Wall Panels Into A Wall, The Runner Having A Web And A Side Flange, The Inner Panel Support Being Provided By A Support Member Disposed Transverse Of The Web And Spaced From The Side Flange |
| 3,909,347 | Thermal Pipe Insulation | 9/30/1975 | Warren Herbert Lee | Improved Thermal-Insulating Material Of The Type Containing Mineral Wool And An Organic Binder Are Rendered Smokeless By The Inclusion Of Small Amounts Of Activated Carbon Particles The Thermal-Insulating Material Is Particularly Suitable For Use As A Thermal Insulation Pipe Covering |
| 3,916,773 | Ceiling Assembly And Method | 11/4/1975 | Dail | A Ceiling Assembly Including A Grid Of Main And Cross Runners, An Air Diffuser Disposed Over A Portion Of The Length Of One Of The Runners For Emitting Air Through A Portion Of The Grid, And A Removable Cap Member Disposed Over The One Runner Beneath The Air Diffuser To Modify The Air Diffusion Characteristics Of The Runner With Respect To Air Emitted From The Air Diffuser Methods For Forming And For Modifying Ceiling Assemblies Using The Above Elements To Provide The Desired Pattern Of Air Diffusion Which Can Be Readily Changed |
| 3,918,981 | Fungicidal Dispersion, Paper And Process | 11/11/1975 | Long | Paper Sheets, Such As For Use As The Cover Sheet Of Gypsum Wallboard And The Like, Are Rendered Mildew-Resistant By Adding To The Paper At The Calender Stack Rolls An Aqueous Dispersion Containing A Heavy Metal Salt Of Quinolinolate, A Paper Coating Binder And A Colloidal Suspending Agent A Particularly Preferred Aqueous Dispersion Contains About 5-40% Of A 30% Active Copper-8-Quinolinolate Paste Concentrate; About 3-30% Of A Wax Binder, Preferably About 5-60% Of An About 50% Active Wax Emulsion Such As Of PARACOL 404 R; And A Small Amount Of A Generally Non-Thickening Colloidal Suspending Agent Preferably A Xanthan Gum |
| 3,919,395 | Process For Extraction Of Phosphorus Compounds | 11/11/1975 | Hauge | An Extraction Process For Recovery Of Phosphorus Compounds From Both Low And High Grade Phosphate Ores Utilizes A Room Temperature Extraction With Dilute Mineral Acids Whose Calcium Salts Are Water Soluble Preferably The Ore Is Coarsely Ground Dissolved Impurities Are Removed From The Dilute Phosphate Solution By A First Neutralization Step, Whereafter Further Neutralization Precipitates High Purity Calcium Hydrogen Phosphate The Latter May Be Converted To High Purity Phosphoric Acid By Treatment With Sulfuric Acid Either Lime Or Ammonia May Be Used Advantageously As A Neutralizing Agent |
| 3,924,373 | Combination Screw Aligning And Frame Reinforcing Brace | 12/9/1975 | Lizdas | Application For Letters Patent For Combination Screw Aligning And Frame Reinforcing Brace A Quickly Assembled Door Frame Having Frame Members Formed Of Metal Channel Including Spaced-Apart Legs Each Terminating In Flanged Means Forming A U-Shaped Portion Defining A Recess, And At Least One U-Shaped Brace Mounted In Each Recess Having A Major Web And A Pair Of Parallel Spaced-Apart Flanges Extending Therefrom, The Ends Of The Flanged Of Said Brace Engaging The Inner Surface Of Each Leg Of The Door Frame, The Web Of The Brace Having An Offset Portion Positioned Within The Recess Of The U-Shaped Portion Of The Legs Of The Door Frame And Having An Aperture Provided Therein To Receive And Guide A Fastening Means Extending Through An Aperture Provided In The Legs Of The Door Frame In An Improved Embodiment, A Recess Such As An Aperture Or A Depression Is Provided In The Offset Portion Of The Brace Adapted To Engage A Protuberance Or A Nubbin Provided In The Terminal Flange Of The Leg, Thereby Restraining The Brace Within The U-Shaped Portions Of The Legs Of The Door Frame |
| 3,925,946 | Reticulated Grating | 12/16/1975 | Balinski | An Improved Reticulated Grating Comprising An Apertured Sheet And Serrations Projecting From The Aperture Edges Of At Least One Of The Surfaces Of The Sheet, Each Of The Serrations Of Each Aperture Being Skewed With Respect To The Next Adjacent Serration, To Increase Frictional Resistance |
| 3,925,948 | Modular Wall Construction | 12/16/1975 | G. Sauer, B. Hansen | Modular Wall Construction |
| 3,927,965 | Direct And Acid Dyes With The Same Dye Chlorine Decolored As Leveller | 12/23/1975 | Lasas | A Novel Solution Obtained From A Process For Treating Dyehouse Waste Water, Containing Leftover Dyestuff, For Reclamation And Reuse For Consecutive Dyeing And/Or Rinsing Or The Like, In Which Halogen, Such As Gaseous Chlorine, Is Added To Decolorize The Chromophoric Functional Group Of The Dyestuff The Decolorized Waste Water Is Then Recycled Into The Dyeing System To Form The Present Solution |
| 3,934,465 | Post-Tensioning Load Cell | 1/27/1976 | Hanson, John Arvid | The Load Cell Disclosed Is For Detecting Changes In Tensile Loading Of A Multiwire Structural Post-Tensioning Tendon For A Concrete Structure The Load Cell Has A Pair Of Spaced End Plates, An Elastically Deformable Cylindrical Steel Member Which Extends Between And Is Connected To The Peripheral Portions Of The End Plates, And A Telemetric Strain Sensing Device Mounted Between The End Plates Centrally Within The Cylinder The Cylindrical Steel Member Carries The Full Load Of The Post-Tensioning Tendon, And Because Of The Central Location Of The Strain Sensing Device Within The Cylinder Member, Measurements Will Not Be Affected By Eccentricity |
| 3,935,343 | Molten Salt Method Of Producing Fire Resistant Wood Articles | 1/27/1976 | Nuttall Harold W | Hardboard And Other Wood Articles Are Made Fire Resistant By Immersing The Wood In A Molten Ammonium Phosphate Salt Batn, Preferably Monoammonium Phosphate |
| 3,940,899 | Stud Having Struck-Out Flanges And Fire-Rated Wall Structure Formed Therewith | 3/2/1976 | Balinski, Henry A. | A Metal Stud For Constructing A Fire-Rated Wall And The Wall Structure Formed Of A Plurality Of Studs Mounted In Runners And Having At Least Two Spaced-Apart Layers Of Wallboard Panels With Adjacent Panels In Abutting Relationship, The Stud Being Formed Of An Integral Piece Of Sheet Metal And Comprising A Single Layer Web Having A First Plurality Of Oppositely Directed Flange Means At One Edge Thereof, A Web Substantially Perpendicular To The Flange Means, And A Panel At The Other Edge Of The Web For Supporting Wallboard Panels Medial Portions Of The Web Are Struck-Out At Longitudinally Spaced-Apart Intervals To Form A Second Pair Of Oppositely Directed Flange Means Substantially Parallel To And Spaced-Apart From The First Pair Of Oppositely Directed Flange Means, The First And Second Flange Cooperating With A Portion Of The Web Therebetween To Define A Plurality Of Oppositely Directed Channels Engaging Edges Of A First Layer Of Wallboard Panels, And A Second Layer Of Wallboard Panels Affixed To The Panels Of The Stud At The Other End Of The Web, The Over-All Wall Structure Having Excellent Fire-Rating Properties |
| 3,943,680 | Stud Having Kerf-Engaging Flange And Fire-Retardant Wall Structure Formed Therewith | 3/16/1976 | Balinski, Henry A. | A Unitary Integral Metal Stud Formed Of Sheet Metal For Constructing A Fire-Retardant Wall And The Wall Structure Formed Of A Plurality Of Studs And A Pair Of Spaced-Apart Layers Of Gypsum Wallboard Panels In Abutting Relationship, The Stud Comprising A Web Having A Pair Of Flanges Defining A Wallboard Panel-Engaging Channel On One Side, And A Kerf-Engaging Flange Substantially Centrally Located On The Other Side, And Means Extending From The Web And Having A Supporting Surface Adapted To Have A Second Layer Of Gypsum Wallboard Panels Affixed Thereto A First Row Of Panels Is Engaged By The Channel And Kerf-Engaging Flange, Whereas A Second Layer Of Gypsum Wallboard Panels Is Affixed To The Supporting Surface Extending From The Roof Additionally Apertures May Be Provided In The Web To Inhibit Heat Conduction Through The Metal Stud, And Additionally To Provide Space Into Which The Edges Of The Wallboard Panels May Dissipate Heat If They Should Become Hot, As For Example During A Fire The Resultant Wall Structure Formed Of The Studs Has A Superior Fire-Rating |
| 3,944,698 | Gypsum Wallboard And Process For Making Same | 3/16/1976 | Dierks Robert P; Rillie Robert J | A Specially Prepared Fiber Reinforcement And Improved Gypsum Wallboard Are Disclosed The Fiber Reinforcement Includes A Multiplicity Of Relatively Long Fibers Which Are Disposed At The Interface Of The Core And Cover Sheets Of The Wallboard And Are Adhesively Bonded To The Cover Sheets And Incorporated Predominantly Into The Portion Of The Core Immediately Adjacent To The Cover Sheets |
| 3,945,167 | Clip For The Assembly Of Composite Structural Members | 3/23/1976 | Wendt, Alan C. | A Clip And Assembly Of Two Structural Channels Front-To-Back By Use Of The Clip, The Clip Having A One-Channel Connecting Portion And Means For Gripping Portions Of The Side Flanges Of The Other Channel |
| 3,945,741 | Self-Aligning Hanger Attachment Bracket For Structural Steel Joists | 3/23/1976 | Wendt, Alan C. | A Hanger For Mounting Hollow Metal Joists Perpendicular To Headers And The Like Is Disclosed The Hanger Has A U-Shaped Top Flange For Hanging The Hanger And A Backplate Suspended From The Hanger With The Backplate Terminating At Its Bottom Edge In A Saddle For The Joist To Rest Upon And With The Backplate Being Bent Outward And Together At Its Upper Portion To Provide A Support For The Interior Of The Hollow Metal Joist |
| 3,952,130 | Mineral Wool Paper | 4/20/1976 | Nason, Stephen G. | A Paper Product Comprising Mineral Fibers And A Nonfibrous, Highly Refined Gel Binder, The Product Having A Thickness No Greater Than About 0080 Inches And An Apparent Specific Gravity Of Between About 025 And About 085 The Product May Be A Sheet No Thicker Than About 0012 Inches, Or A Paperboard |
| 3,955,330 | Smoke Stop For Doors | 5/11/1976 | Wendt Alan C | A Smoke Stop For Doors Is Disclosed The Smoke Stop Consists Of A Metal Frame With A Slot Therein Extending Along Substantially The Entire Length Of The Frame On The Door Side Thereof; A Continuous Tube Within The Slot, The Continuous Tube Having Retarded Decomposability At The Kindling Temperature Of The Door And The Continuous Tube Having One Or More Fins Running The Entire Length Thereof And Projecting Outward On The Door Side Of The Frame; And An Intumescent Material Completely Enclosed Within The Continuous Tube When The Door Is Closed And The Frame And Door Are Subjected To Flames, The Intumescent Material Expands Causing The Sealing Of The Space Between The Frame And The Door And Thereby Providing A Smoke Stop Between The Door And The Frame |
| 3,956,855 | Door Frame Structure With Safety Lock Bracket | 5/18/1976 | Walker, Patrick J. | A Safety Lock Bracket Is Provided For Affixing The End Of A Door Frame Header Having Internal Roller Tracks To The End Of A Door Jamb Over Which It Is Mounted |
| 3,962,840 | Corner Construction And Clip Therefor | 6/15/1976 | Nelsson, Nels | A Corner Construction Is Provided Which Utilizes A Support Having An Elongated Metallic Flange, A Back-Up Clip Resiliently Engaging The Flange, And A Pair Of Panels One Panel Has A Surface Thereof Engaging A First Portion Of The Clip And Is Secured To The Flange The Second Panel Has A Surface Thereof Engaging A Second Portion Of The Clip And Is Secured Thereto An Edge Of The Second Panel Is In Abutting Engagement With The First Portion Of The Clip The Clip Is Concealed By The First And Second Panels Which Are Arranged In Angular Relation |
| 3,964,214 | Smoke Stop | 6/22/1976 | Wendt, Alan C. | A Smoke Stop For Doors Is Disclosed The Smoke Stop Comprises A Metal Frame With A Slot Therein Extending Substantially The Entire Length Of The Frame On The Door Side Thereof; A Movable Lid Pivotally Attached Along One Outer Edge Of The Metal Frame And Releasably Attached To A Second Outer Edge Of The Metal Frame Thereby Completely Enclosing The Slot In The Metal Frame; And An Intumescent Material Completely Enclosed Within The Enclosed Slot When The Door Is Closed And The Frame And Door Are Subjected To Flames, The Intumescent Material Expands Causing The Sealing Of The Space Between The Frame And The Door And Thereby Providing A Smoke Stop Between The Door And The Frame |
| 3,964,944 | Manufacture Of Cementitious Board | 6/22/1976 | Gwynne, Thomas | The Invention Relates To The Manufacture Of Cementitious Board, Such As Gypsum Board, Faced With Paper Or Other Sheets And Having An Improved Accuracy Of Edge Profile A Sheet To Be Folded At The Lateral Edges Of The Board Is Scored, And Quick-Setting Adhesive, Preferably A Hot Melt Adhesive, Is Applied Along The Lines Of Folding The Sheet Is Then Folded To The Desired Configuration And Held Until The Adhesive Has Set Thus Establishing An Accurate Profile That Withstands The Action Of The Aqueous Slurry Of Cementitious Material And The Application Of The Other Sheet The Invention Can Be Applied To Various Profiles, Including Square Edge, Tapered Edge, Rebated And Tongue-And-Groove |
| 3,965,631 | Fire Rated Grid-Member With Controlled Expansion Means | 12/3/1974 | G. Sauer | Fire Rated Grid-Member With Controlled Expansion Means |
| 3,965,639 | Beam-Reinforced Ceiling Panels | 6/29/1976 | Boarini, Edward J. | An Extra-Wide Ceiling Panel And Ceiling Constructed Therefrom Characterized By A Reinforcing Member Extending Along The Back Surface Thereof, The Member Being Generally Flat With Negligible Vertical Extension So As Not To Interfere With The Stacking Of Such Panels Means Are Provided For Further Reinforcing The Member With A Beam Characterized By Extending Generally Perpendicular To The Reinforcing Member |
| 3,970,440 | Compact Air Filter | 7/20/1976 | Copenhefer John E; House Robert M | A Compact Nestable Air Filter Of Generally Rectangular Form Comprising A Frame Formed Of An Integral Suitable Cut And Scored Blank Of Paperboard, Which, When Assembled, Comprises Planar Frame Members Engaging A Substantially Sheet-Form Filter Element Therebetween, And Having Flared Frame Members Disposed At An Angle Of Less Than 180 DEG Permitting A Plurality Of Frames To Nest Within Each Other, Thereby Reducing The Bulk Of The Plurality Of Filters The Portions Of The Flared Frame Members May Be Connected Together By Several Means, Including Glue Flaps Hingedly Connected To One Frame Member And Adhesively Affixed To An Adjacent Member In An Improved Embodiment A Portion Of The Planar Frame Members On The Bottom Or Downstream Side Of The Filter Is Provided With An Integral Perforated Cover Sheet For Retaining The Filter Element In Place When Subjected To An Air Current |
| 3,973,302 | Clip For Attaching Header To I-Beam | 8/10/1976 | Semmerling, Ralph P. | A Clip Is Disclosed For Insertion Into A C-Shaped Header For Use In Stiffening The Header And Concurrently Attaching The Stiffened Header To An I-Beam Or The Like The Clip Includes A Portion For Insertion Into The Channel Of The C-Shaped Header, Said Portion Substantially Filling A Cross-Section Of The Channel And Contacting A Substantial Portion Of The Interior Walls Thereof, And One Wall Of The Clip Having Integrally Depending From One End Thereof At Least One Leg Or Clip For Engaging The I-Beam And Attaching Thereto |
| 3,974,607 | Fire-Rated Common Area Separation Wall Structure Having Break-Away Clips | 8/17/1976 | Balinski, Henry A. | A Common Area Separation Wall Structure For Separating Adjacent Occupancy Areas Is Provided Having A Centrally Located Vertical Fire Barrier Member Comprised Of A Plurality Of Steel Studs Supporting A Plurality Of Gypsum Drywall Panels, And Wood-Framed Wall Structures On Each Side Of The Vertical Fire Barrier Having Outer Wall Panels Affixed Thereto The Fire Barrier Member Is Supported By The Wall Structures On Each Side And Affixed Thereto By Means Of Aluminum Break-Away Clips In The Event Of A Fire In One Occupancy Area, The Heat Of The Flames Melts The Break-Away Clips On That Side, Permitting The Burning Wall To Separate From The Vertical Fire Barrier Member And Collapse, While The Vertical Fire Barrier Member Remains Supported By The Opposite Non-Burning Wall, Thereby Preventing The Fire From Igniting The Wall Structure Of The Occupancy Area On The Other Side |
| 3,975,320 | By-Product Gypsum Fillers For Mica-Free Joint Compounds Consisting Of Synthetic Calcium Sulphate Dihydrate Having A Mean Particle Size Of 11 Or 12 Microns | 8/17/1976 | Lane, Marvin K. ; Anderson, Winton C. | A Filler For A Mica-Free Joint Compound, Comprising By-Product Gypsum Having A Mean Particle Size Between About 11 And About 12 Microns, A Percentage By Weight Of Particles Smaller Than 1 Micron Of Between About 5 And About 65, And A Packed Dry Bulk Volume No Greater Than About 93 Cc Per 100 Grams |
| 3,979,874 | Suspended Ceiling System And Runner Joints Therefor | 6/29/1976 | R. Cubbler, K. Lucas | Suspended Ceiling System And Runner Joints Therefor |
| 3,984,596 | Decorated Gypsum Board With Expanded Inorganic Particle Coating | 10/5/1976 | Failmezger; Friedrich | A Dried Gypsum Board Article And A Gypsum Board To Be Dried, The Latter Comprising A Wet Gypsum Core And A Cover Sheet To Be Securely Laminated Thereto In Drying And A Coating Composition, The Cover Sheet Having A Porosity Between About 90 And About 260 As Determined By ASTM D 726-58; The Coating Composition Comprising A Pigment Binder And Expanded Inorganic Particles Present In An Amount Sufficient To Provide The Coated Cover Sheet With A Porosity Of No Higher Number Than About 2500 Seconds As Determined By ASTM D 726-58 Thereby The Wet Core, Paper And Coating Composition Are Capable Of Being Simultaneously Dried Without Delaminating The Sheet From The Core |
| 3,986,313 | Releasibly Locking Demountable Partitions And Studs | 10/19/1976 | Nelsson, Nels | A Releasibly Locking, Accessible And Demountable Partition Assembly Featuring Kerfed Panels, Stud Members, And Means For Releasibly Locking At Least One Panel To Each Stud Member, The Means Including Angle Members And Vertically-Extending Means On The Stud Permitting Engagement And Disengagement Of The Angle Members Anywhere Along The Height Of The Stud Member |
| 3,987,600 | Fire Resistant Doors | 10/26/1976 | Baehr Donald O | Fire-Resisting Doors Having A Novel Framing, That Is The Stiles And Rails Of The Door, Are Disclosed The Door Comprises Preferably A Thermal Insulating Core And Conventional Outer Facing Cover Sheets And Is Framed With A Particular Combination Of Glass Fibers And Gypsum In A Particular Arrangement |
| 3,989,398 | Clip-On Attachment Members For Structural Steel Joists | 11/2/1976 | Wendt, Alan C. | A Clip-On Attachment Member Is Disclosed Characterized By A Portion Of One Leg Of The Member Being Bent Slightly Out Of The Plane Of The Rest Of The Leg, Thereby Permitting That Leg Of The Member To Be Clipped To A Hollow Structural Member To Facilitate Attachment Thereto |
| 3,998,014 | Protective Edge Configuration For Structural Sheeting | 12/21/1976 | Bartels; Harold; Kuhr; Albert F. | A Structural Sheeting Unit, Such As Fiberous Ceiling Tile, Is Disclosed Comprising A Panel Kerfed Around The Edge Thereof And Having An Extended Edge Portion Provided On One Side Of Said Kerf, Thereby Protecting The Remaining Edge Portion From Damage During Handling, Said Extended Edge Portion Being Weakened Along A Line Corresponding To The Remaining Edge Portion Thereby Enabling The Extended Portion To Be Easily Broken Away For Installation |
| 3,998,015 | Resilient-Edged Wallboard And Wall Assembled Therewith | 12/21/1976 | Scott, Junior L. ; Zajonc, Fred H. ; Crumbaugh, John H. | A Predecorated Wall Panel Is Disclosed For Use In Forming Walls In Which The Joints Between The Panels Are Not To Be Finished The Panel Includes A Rigid Core Of Green Hydrated Gypsum With A Layer Of Resilient Deformable Material Along At Least One Edge Thereof Being Adhesively Affixed Thereto And A Decorative Sheet Covering The Front Surface And Side Edge Surface Of The Panel With A Decorative Sheet Being Under Tension In The Vicinity Of One Edge Surface Thereby Partially Compressing The Deformable Material And Enabling Two Or More Panels To Be Positioned With A Core Edge Surface Adjacent To Each Other Thereby Presenting An Attractive Appearance |
| 3,998,020 | Adjustable Suspension Systems For Ceilings | 12/21/1976 | Kuhr, Albert F. ; Lau, Edward R. ; Bartels, Harold | An Apparatus Is Disclosed For Leveling Suspended Ceilings While Attaching Them To Supporting Structures The Apparatus Has An Upper Body Portion Having A Backplate, A Top Plate, And A Side Plate With Each Of The Plates Lying In A Plane Substantially Perpendicular To The Plane Of The Other Two Plates And Each Of The Plates Having Means For Connection To A Supporting Structure A Flange Extends Downwardly From One Of The Plates And Includes Means For Engaging The Supporting Portion Of A Suspended Ceiling |
| 3,998,027 | Decorative Runner And Wall | 12/21/1976 | Wendt, Alan C. ; Nelsson, Nels | An Improved Ceiling Runner And Wall Constructed Therefrom Wherein The Exterior, Decorative Flange Holding In Place The Wallboard Of The Wall Is Provided With Means For Removably Engaging A Decorative Trim Which May Be Added To Alter The Decorative Appearance |
| 3,998,419 | Swivel Type Hanger Bracket | 12/21/1976 | Semmerling, Ralph P. | An Apparatus Is Disclosed For Use In Suspended Ceilings The Apparatus Is Useful In Leveling Suspended Ceilings While Concurrently Attaching Them To Supporting Structures The Apparatus Has An L-Shaped Connection Piece Having At Least One Opening In The Base Thereof, A Swivel Flange Having At Least One Opening Therein And Partially Enclosed At The Bottom Thereof By A Clip For Spacing Apart An Inverted-T Runner And A Flange While Attaching The Flange To The Inverted-T Runner, And A Connector Connecting The Connection Piece And Flange Through An Opening Therein The Connection Piece And Flange Can Be Adjusted Through The Connector In Order To Adjust The Location Of A Ceiling Suspended By The Inverted-T Runner |
| 3,998,769 | Mica, Free, Crack-Resistant Drying Type Joint Compound | 12/21/1976 | Lane, Marvin K. ; Anderson, Winton C. | A Drying Type Crack-Resistant Joint Compound Comprising Terra Alba And A Binder, The Compound Being Characterized In That It Is Essentially Free Of Mica |
| 3,998,944 | Fungicidal Paper | 12/21/1976 | Long William Joseph | Paper Sheets, Such As For Use As The Cover Sheet Of Gypsum Wallboard And The Like, Are Rendered Mildew-Resistant By Adding To The Paper At The Calendar Rolls An Aqueous Dispersion Containing A Heavy Metal Salt Of Quinolinolate, A Paper Coating Binder And A Colloidal Suspending Agent A Particularly Preferred Aqueous Dispersion Contains About 5-40% Of A 30% Active Copper-8-Quinolinolate Paste Concentrate; About 3-30% Of A Wax Binder, Preferably About 5-60% Of An About 50% Active Wax Emulsion Such As Of PARACOL 404 R; And A Small Amount Of A Generally Non-Thickening Colloidal Suspending Agent Preferably A Xanthan Gum |
| 3,999,343 | Partition And Stud Therefor | 12/28/1976 | Roberts, James R. | A Slotted Stud Comprising Two Elongate, Spaced-Apart, Parallel Stud Portions Connected To One Another At A Point Substantially Intermediate Their Ends, And A Partition Formed By A Plurality Of Such Studs Arranged In Spaced-Apart Coplanar Array And Opposed Panels Mounted On Respectively Opposed Stud Portions, And In Some Embodiments, Slotted Plates Respectively Connected To Aligned Opposite Ends Of Said Studs, All Of The Above Configurations Contributing To Or Forming Partitions With Reduced Sound Transmission |
| 4,007,571 | Panel Attachment System | 2/15/1977 | Marchello, Maurice J. ; Bassett, Gordon H. | A Framing Assembly Which Braces The Back Of The Panel With Metal Strips Attached To The Sides Of Adjacent Framing Members After They Are Attached To The Panel, To Permit Secure Bracing Regardless Of Warping Present In The Framing Members |
| 4,009,062 | Gypsum Wallboard -- Making Process And Product | 2/22/1977 | Long, William J. | A Specially Prepared Paper Bond Liner, Gypsum Wallboard, And Gypsum Wallboard Process Which Bonds The Liner To The Core By An Adhesive Confined To The Paper-Core Interface, The Adhesive Comprising Certain Starches Placed On The Bond Liner In Their Raw State |
| 4,010,817 | Paper-Backed Acoustical Tile | 3/8/1977 | Warren, Herbert L. ; Wittrup, Bruce A. | An Acoustical Tile Comprising A Relatively Thin, Flat Body Of Acoustical Composition Including Fibrous Material And A Binder, And A Paper Backing Affixed Thereto Having A Fire-Retardant Material Dispersed Therein, The Outer Facing Surface Of The Tile Being Either Planar Or Slightly Convex |
| 4,012,491 | Phosphate Process | 3/15/1977 | Hauge, Douglas Oliver | Phosphate Values Of High Purity And Concentration May Be Efficiently Recovered From A Wide Range Of Phosphatic-Mineral-Containing Materials Including As-Mined Phosphate Ore By Leaching Such Ore With A Dilute Aqueous Mixture Of Sulfuric And Hydrochloric Or Nitric Acid, And Precipitating Phosphate Values As Dicalcium Phosphate This Product, Which Is Already Suitable For Use In Animal Feed And Agricultural Fertilizer, Can Also Be Readily Converted To The Many Other Agricultural And Industrial Phosphate Products Without Costly Purification Operations Or Means Of Control Of Pollution To The Surrounding Environment |
| 4,014,377 | Structure For Slidable Doors Having Snap-Mounted Glide Retainer | 3/29/1977 | Kochanowski George A | A Structure Comprising A Door Panel Having An Elongated Opening Therein, And Resilient Mounting Means On The Panel Engageable With A Rail For Moving The Panel Along The Rail, The Mounting Means Comprising A Glide Including A Body Disposed On One Side Of The Panel, A Roller Rotatably Mounted On The Body Engageable With The Rail For Movement Of The Glide Thereon, A Shank On The Body Extending Through The Panel Opening And Moveable Therein For Relative Movement Of The Glide And The Panel, Detent Flanges Provided At Both Ends Of The Shank, And A C-Shaped Glide Retainer Mounted On The Reverse Side Of The Panel Having Flanges Adapted To Engage And Clamp The Detent Flanges Of The Shank, And Means For Restraining The Retainer Against Transverse Movement |
| 4,014,378 | Structure For Slidable Doors Having Glide Retainer Integral With Door Panel | 3/29/1977 | Kochanowski George A | A Structure Comprising A Door Panel Having An Elongated Opening Therein, And Resilient Mounting Means On The Panel Engageable With A Rail For Moving The Panel Along The Rail, The Mounting Means Comprising A Glide Including A Body Disposed On One Side Of The Panel, A Roller Rotatably Mounted On The Body Engageable With The Rail For Movement Of The Glide Thereon, A Shank On The Body Extending Through The Panel Opening And Moveable Therein For Relative Movement Of The Glide And The Panel, Detent Grooves Provided At Both Sides Of The Shank, And Flanges Provided At Both Sides Of The Elongated Opening Integral With The Door Panel, The Edges Of The Flanges Being Disposed Within The Detent Grooves Of The Shank, Thereby Retaining The Glide Slidable Within The Elongated Opening |
| 4,015,972 | Fortified Gypsum Granule | 4/5/1977 | Watkins; Kenneth Ray; Wenk; Robert John | A Sulfur Fortified Gypsum Granule Is Provided, Preferably Adapted For Agricultural Uses So As To Give A Timed Release Of Sulfate Nutrients In Soil Comprising A Combination Of At Least About 5 Percent By Weight Of Elemental Sulfur And A Major Proportion Of Calcium Sulfate Which Combination Has Been Roll Pressure Compacted At A Mixture Temperature Of About 110 DEG -230 DEG F To Form Hard Granular Shapes |
| 4,016,234 | Paper-Backed Acoustical Tile | 4/5/1977 | Warren, Herbert L. ; Wittrup, Bruce A. | An Acoustical Tile Comprising A Relatively Thin, Flat Body Of Acoustical Composition Including Fibrous Material And A Binder, And A Paper Backing Affixed Thereto Having A Fire-Retardant Material Dispersed Therein, The Outer Facing Surface Of The Tile Being Either Planar Or Slightly Convex |
| 4,016,689 | Sound Absorbing Panel System And Method For Connecting Panels | 4/12/1977 | Wendt, Alan C. | A Clip Is Disclosed For Use In Joining Juxtaposed Sound Absorbing Panels Having A Sound Absorbing Material Held In A Frame Extending Around The Outer Edge Of The Sound Absorbing Material, Said Frame Having A Projecting Lip Portion The Clip Comprises A Front Plate Having Opposing End Sections; Offset Members Extending Backwardly From The Opposing End Sections; And, Opposing Securing Members Extending Downwardly From The Back Of The Offset Members Adjacent Sound Absorbing Panels Are Placed Together By The Securing Members Of The Clip Being Placed Between Sound Absorbing Material And The Frame Of Two Adjacent Panels The Sound Absorbing Panels May Be Either Individual, Smaller Panels Or May Be A Larger Panel Made Up Of Smaller Panels, Stacked One On Top Of The Other, And Having A Vertical Frame Member Common To The Vertical Edges With The Frame Member Having A U-Shaped Cross-Section Also Disclosed Is The Sound Absorbing Panel System Made Possible By Use Of The Clip And Panels |
| 4,016,697 | Construction Unit | 4/12/1977 | Ericson, Richard | This Invention Relates To Boardlike, Load Bearing, Construction Units Formed From A Tensile Portion Substantially Uniformly Distributed Over The Entire Area Thereof And Which Also Has Fastener Holding Properties And A Cementitious Material Of Good Compressional Strength Forming Substantially The Remaining Portion Of The Unit With Novel Means For Effecting A Bond Between The Tensile And Compressional Portions Along With Means For Manufacturing The Units And Their Use In Various Systems Of Construction |
| 4,018,020 | Modular Wall Construction | 4/19/1977 | G. Sauer, B. Hansen | Modular Wall Construction |
| 4,019,300 | Suspended Ceiling Structure | 4/26/1977 | G. Sauer, B. Hansen | Suspended Ceiling Structure |
| 4,020,237 | Paper Covered Gypsum Board And Process Of Manufacture | 4/26/1977 | Von Hazmburg Romulis S | A Paper Covered Gypsum Board And A Process For Its Manufacture, With At Least One Cover Of The Board Comprising A Multiply Paper Sheet Containing A Major Proportion Of Cellulosic Fibers And A Minor Proportion Of Short Mineral Fibers |
| 4,031,664 | Suspension System For Sound Absorption Panels | 6/28/1977 | Wendt, Alan C. | A Hanger Is Disclosed For Supporting Sound Absorption Panels Wherein The Panels Have A Top Frame Member With A Depending Lip Portion The Hanger Has A Horizontal Portion And A Vertically Downwardly Depending Portion, With The Vertically Downwardly Depending Portion Having An Upwardly And Inwardly Formed Portion Which Can Engage The Depending Lip Of The Frame Of The Panel To Support The Panel While The Horizontal Portion Of The Hanger Is Attached To Supporting Means The Formed Portions Can Be Useful In Holding Together Abutting Panels PAL A Horizontally Movable Sound Absorption Wall Is Disclosed Having One Or More Sound Absorption Panels Supported By A Top Frame Member, A Hanger Attached To The Top Frame Member, And A Track And Guiding Means For Guiding The Hanger Along The Track |
| 4,034,514 | Door Frame Structure Having Quick Mounting Hinge Means | 7/12/1977 | Cecil Eugene F | A Quickly Assembled Door Frame Formed Of Sheet Metal And Having A Generally U-Shaped Cross-Section, One Of The Frame Members Being Adapted To Mount A Hinge Having A Portion Embossed To Provide A Recess To Receive A Plate Of The Hinge, A Plurality Of Slots Provided In A Side Wall, And A Hinge Anchor Plate Having Engagement Tabs Adapted To Be Inserted Into The Slots And Having Threaded Apertures Adapted To Engage Screws Engaging The Hinge Plate And Passing Through Apertures Provided In The Frame Member In An Improved Embodiment Secondary Embossments Are Provided In The Frame Member Defining Alignment Channels, And The Hinge Anchor Plate Is Provided With Guide Tabs Adapted To Be Received Within Channels, Thereby Maintaining The Engagement Tabs Of The Hinge Anchor Plate In Engagement With The Inner Wall Of The Primary Embossment |
| 4,034,531 | Ceiling System | 7/12/1977 | Balinski, Henry A. | A Support Runner For Use In A Suspended Ceiling System Is Disclosed With The Support Runner Being Useful In Ceiling Systems Having An Exposed Flange For Decorative Purposes The Support Runner Has A Decorative Trim Having A Decorative Lower Surface And An Engageable Upper Surface An Inverted-T Runner Is Supportingly Engaged About The Engageable Upper Surface Of The Decorative Trim And Extends Along The Decorative Trim A Distance Sufficiently Less Than The Length Of The Trim To Accommodate Heat Expansion Distortion Of The Inverted-T Runner When The Ceiling System Is Exposed To Heat, The Inverted-T Runner Continues To Hold The Ceiling Panels Even Though The Decorative Trim Becomes Inoperable Due To Expansion Caused By The Heat |
| 4,035,458 | Method Of Making A Composite Rigid Foamed Chair Seat Or The Like | 7/12/1977 | Lyman Richard J | A Method For Making An Article Such As A Chair Seat Or The Like Is Disclosed With The Method Including: Attaching A Rigid Insert To One-Half Of A Mold With An Air Permeable Material Extending From Between The Rigid Insert And The Mold Outward Toward The Edges Of The First Half Of The Mold; Inserting A Liquid Foamable Reaction Mixture Into The Cavity Of A Second Half Of The Mold, Placing The Two Mold Halves Together With The Air Permeable Material Extending From The Cavity Of The Mold To The Exterior Thereof; Allowing The Reaction Mixture To Cure And Form A Rigid Hard Structure Throughout While Expanding Around The Sides Of The Rigid Insert; And Removing The Finished Article From The Mold |
| 4,035,790 | Monitoring Device For Fiber Cutter | 7/12/1977 | Farmer, Harold | An Apparatus For Monitoring The Output Of A Fiber Cutter Arranged To Cut Long Fiber Roving Strands Into Short Clippings And To Feed The Clippings Into A Slurry-Containing Mixer, The Monitoring Apparatus Having A Plurality Of Rotatably Mounted Assemblies Each Comprising A Rotating Shaft And A Plurality Of Arms Mounted Thereon During Normal Operation The Fiber Clippings Fall Through The Moving Arms And Into An Apparatus Wherein The Fibers Are Mixed Into A Slurry, Such As A Calcined Gypsum Slurry Malfunction Of The Cutting Apparatus Resulting In The Discharge Of Long Fiber Strands Causes Entanglement Of The Fiber Strands With The Moving Arms, Thereby Causing Rotation Of The Assemblies To Discontinue And Actuating An Alarm And Automatic Switches, Thereby Rendering The Entire Apparatus Inoperative And Preventing Serious Entanglement Of The Mixing And Conveying Apparatus Which Could Result In Long Shut-Down Periods |
| 4,040,758 | Suspended Ceiling Hanging Clip | 8/9/1977 | G. Sauer | Suspended Ceiling Hanging Clip |
| 4,043,092 | Clip For Attaching Insulation And The Assembly Thereof | 8/23/1977 | Paul, George W. ; Balinski, Henry A. ; Quigg, Paul S. ; Crumbaugh, John H. | A Clip And The Assembly Of The Clip With A Structural Member And Insulative Layers, The Clip Being Releasibly Self-Attached To Projecting Edge Portions Of The Member So As To Have Two Impaling Projections For Impaling The Layers |
| 4,049,866 | By-Product Gypsum Fillers For Mica-Free Joint Compounds | 9/20/1977 | Lane, Marvin K. ; Anderson, Winton C. | A Filler For A Mica-Free Joint Compound, Comprising By-Product Gypsum Having A Mean Particle Size Between About 11 And About 12 Microns, A Percentage By Weight Of Particles Smaller Than 1 Micron Of Between About 5 And About 65, And A Packed Dry Bulk Volume No Greater Than About 93 Cc Per 100 Grams |
| 4,051,291 | Gypsum Wallboard | 9/27/1977 | Long William J | A Specially Prepared Paper Bond Liner, Gypsum Wallboard, And Gypsum Wallboard Process Which Bonds The Liner To The Core By An Adhesive Confined To The Paper-Core Interface, The Adhesive Comprising Certain Starches Placed On The Bond Liner In Their Raw State |
| 4,059,456 | Composition For Accelerating The Setting Of Calcined Gypsum And The Product Formed Thereby | 11/22/1977 | Derooy Felix J; Daniel Thell D; Annes Erle C; Arnold Billy G | A Composition For Accelerating The Setting Of An Aqueous Calcined Gypsum Slurry, The Composition Comprising Finely Ground Calcium Sulfate Dihydrate And A Lignosulfonate The Composition, When Added To An Aqueous Calcined Gypsum Slurry, Accelerates The Setting Process And Shortens The Set Time Period As Determined By The Temperature Rise Set Test Procedure The Composition Is Useful For Making Gypsum Wallboard |
| 4,062,721 | Use Of Surfactant To Increase Water Removal From Fibrous Web | 12/13/1977 | V. Guyer, D. Bringen | Use Of Surfactant To Increase Water Removal From Fibrous Web |
| 4,063,391 | Ceiling System | 12/20/1977 | Balinski, Henry A. ; Grupe, Robert C. | A Support Runner For Use In Suspended Ceiling Grid Systems Is Disclosed With The Support Runner Being Useful In Ceiling Systems Having An Exposed Flange For Decorative Purposes The Support Runner Comprises: A Lower Decorative Trim Member; An Upper Inverted T-Runner; And, An Intermediate Spline Member The Decorative Trim Member Has A Decorative Lower Surface And An Engageable Upper Surface A Spline Member Is Engaged About The Engageable Upper Surface Of The Decorative Trim And Extends Substantially Along The Full Length Of The Decorative Trim The Upper Surface Of The Spline Is An Engageable Slot An Inverted T-Runner Is Supportingly Engaged To The Engageable Upper Surface Slot Of The Spline And Extends Along The Spline A Distance Sufficiently Less Than The Length Of Spline And Trim Members To Accommodate Heat Expansion Distortion Of The Inverted T-Runner When The Ceiling System Is Exposed To Heat, The Inverted T-Runner Continues To Hold The Ceiling Panels Even Though The Spline Loses Structural Integrity And Disengages The Decorative Trim |
| 4,067,156 | Computer Floor Structure | 1/10/1978 | Downing, Lucien R. | A Panel For Elevated Access Floors Is Disclosed In Which The Panel Is Formed Of Reinforced Expanded Lightweight Concrete The Reinforcing Is Provided By A Grid Including Two Arrays Of Parallel Reinforcing Rods Which Extend Parallel To The Associated Panel Edges And Perpendicular To The Rods Of The Other Grid A Frame Is Provided By The Grid Around The Two Arrays The Grid Is Located Adjacent To The Lower Surface Of The Body And Divides The Body Into A Plurality Of Square Zones Located In Each Zone, Excepting The Zones At The Corners, Is A Pyramid-Shaped Cavity Which Extends From A Base At The Lower Surface Of The Panel Upwardly At About 45degree To An Apex Spaced From The Upper Surface Of The Panel The Presence Of The Pyramid-Shaped Cavities Does Not Materially Reduce The Strength Of The Panel When Compared To A Similar Panel Without Such Cavities, But Reduces The Weight Of The Panel And The Material Required To Manufacture The Panel |
| 4,073,230 | Method For Embossing Mineral Fiber Board | 2/14/1978 | D. Akerson | Method For Embossing Mineral Fiber Board |
| 4,074,488 | Elevated Floor Assembly | 2/21/1978 | Ray, George F. | A False Floor Assembly Of Square Panels Is Supported On Pedestals Above A Foundation The Panel Corners Rest On The Pedestals And The Adjacent Sides Of Neighboring Panels Between Pedestals Are Secured Together By Releasable Ties That Pass Through The Sides Of Each Neighboring Panel The Area Below The Panels Is Accessible By Simply Removing The Ties And Lifting One Or More Panels From The Assembly Loads Applied To Any One Panel In The Assembled Floor Are Resisted By Neighboring Panels And The Floor Remains Substantially Flat Without Uneven Deflections |
| 4,076,862 | Method Of Treating Earthen Areas | 2/28/1978 | Kobeski, Walter Dan ; Srocki, Sigismund Walter ; Blosser, William Ivan ; Needham, James Joseph | A Method Of Treating Barren Earthen Areas For Inhibiting Air And Sun Spoilation Is Disclosed, The Method Comprising Forming An Aqueous Slurry Of Calcium Sulfate Hemihydrate With A Small Amount Of Defoamer Using A Quantity Of Water About 25-56% Above Normal Consistency, The Hemihydrate Particles Having A Surface Area Of About 4,000-16,000 Square Centimeters Per Gram; And Spraying The Slurry Onto The Barren Area To Form A Set, Substantially Air-Impermeable Covering To The Barren Area That Will Substantially Exclude Outside Air From The Area The Method Is Particularly Applicable To Controlling Burning Coal Spoils And Inhibiting Spontaneous Combustion Of Coal Refuse Banks |
| 4,076,871 | Method Of Impregnating Wood With Boric Acid | 2/28/1978 | B. Short, J. Rayfield | Method Of Impregnating Wood With Boric Acid |
| 4,080,422 | Method For Producing Insoluble Calcium Sulfate Anhydrite | 3/21/1978 | Mccleary, Robert E. | Naturally Occurring Or Man-Produced Calcium Sulfate Dihydrate Is Subjected To A Process Which Involves Concomitant Flash Calcination, Utilizing Co-Current Contact Of The Gypsum With A Gaseous Heat Source, And Self-Comminutation To Produce The Insoluble Calcium Sulfate Anhydrite In Relatively Pure And Finely Comminuted Form Without The Use Of Specially-Sized Feed Rock And Extensive Mechanically Motivated Grinding Of The Product Required By Prior Means Known In This Art |
| 4,082,885 | Fire Resistant Asphalt Roofing Shingles | 4/4/1978 | Rashid Sheikh A; Bray Hugh S; Boarini Edward J | A Fire Resistant And Weathering Resistant Shingle Or Surface Covering Material Ecologically Desirable In Its Utilization Of Disposable Glass Is Disclosed The Shingle Has An Asphalt Coating With Specified Characteristics, And The Asphalt Coating Contains From 10 To 55% By Weight Granular Glass And Preferably A Combination Of Granular Glass And Non-Glass Granular Mineral Filler A Major Portion Of Which Is Granular Glass, With Each Having A Specified Particle Size Distribution PAL A Process Is Disclosed For Producing A Fire-Resistant Shingle Or Surface Covering The Process Includes Saturating A Felt Base With A Bitumen, Admixing Asphalt With Granular Glass And Preferably With A Specified Combination Of Granular Glass And Non-Glass Granular Mineral Filler Of Specified Characteristics, And Then Coating At Least One Side Of The Saturated Felt With The Filled Asphalt |
| 4,088,738 | Process For Producing Phosphoric Acid Using Mixed Acid Feed And A Dicalcium Phosphate Intermediate | 5/9/1978 | Hauge, Douglas O. | A Method Of Making Phosphoric Acid And Gypsum Through A Precipitated Phosphate Intermediary Which Comprises Mixing A Precipitated Dicalcium Phosphate With A Highly Dispersed Reaction Admixture Of Sulfuric Acid And Phosphoric Acid, At A Temperature Between About 25degree And 80degree C; And Withdrawing And Separating Phosphoric Acid Containing Up To About 45% Or More Psub2 Osub5 And Gypsum Containing Generally Less Than 025% Psub2 Osub5 The Resultant Gypsum Is Highly Filterable And Very Low In Occluded Phosphate Value Preferably, The Process Involves First Obtaining A Weak Phosphoric Acid Solution From And By Leaching As-Mined Phosphate Mineral Containing Material To Obtain The Precipitated Dicalcium Phosphate; And Then Converting The Precipitated Phosphate By The Process To The Strong Phosphoric Acid Solution |
| 4,094,694 | Water-Resistant Gypsum Composition And Products, And Process Of Making Same | 6/13/1978 | Long, William J. | An Improved Water-Resistant Cementitious Composition And Products Made Therefrom Are Provided By Forming An Aqueous Cementitious Slurry, As For Example Of Calcined Gypsum And Adding To The Slurry A Composition In The Form An Aqueous Emulsion Of Asphalt And Wax, A Minor Proportion Of Polyvinyl Alcohol And A Minor Proportion Of A Borate Compound, That Is, One Having An Anion Comprising Boron And Oxygen, As For Example Borax The Slurry Is Set In Conventional Manner By Heating And Drying The Resulting Product Has A High Degree Of Water-Resistance While Utilizing Less Asphalt And Wax Composition Than Required With Conventional Asphalt-Wax Emulsions Thereby Accomplishing A Large Savings In Raw Material Costs Additionally, The Use Of A Small Amount Of The Borate Compound Permits A Smaller Amount Of The Relatively Expensive Polyvinyl Alcohol To Be Used Without A Reduction In The Water-Resistance Of The Final Product Alternatively, An Amount Of Asphalt And Wax Composition May Be Utilized Equal To Or Greater Than That Conventionally Used, But Obtaining A Much Greater Degree Of Water-Resistance |
| 4,102,524 | Pipe Anchor Bracket | 7/25/1978 | Cseri, Zoltan | A Pipe Anchor Bracket Member Is Disclosed The Pipe Anchor Bracket, When Engaged With A Like Member, Forms A Means For Attaching Pipes To Other Structures The Bracket Member Has A Body Section With A Portion Thereof Curved To Accommodate The Outside Surface Of The Pipe To Be Supported The Body Portion Terminates At One End In A Flange Having An Outside Locking Surface And Terminates At The Other End In A Curved Flange Having An Inside Locking Surface Adapted To Engage In A Locking Manner The Outside Locking Surface Of A Like Member With The Curved Flange Having A Tab Thereon Adapted To Secure The Member To A Like Member With A Pipe Therebetween The Body Section Has Extending Therefrom Means For Securing The Member To A Supporting Structure |
| 4,104,829 | Roller And Hanger Assembly For By-Pass Doors | 8/8/1978 | Agcaoili Clarito R | A Structure Comprising By-Pass Doors Each Having A Frame And A Panel Mounted Within The Frame, The Doors Being Suspended From A Track By Means Of Hangers Each Having A Roller Pivotally Mounted At One End Thereof Supported And Guided On A Track, The Hanger Comprising A Mounting Shank Engaged In A Channel Of The Door Frame With An Elongate Slot Provided In The Shank Having A Screw Disposed Within The Slot And Engaged In An Aperture Provided In The Door Frame, Thereby Adjustably Securing The Hanger To The Door Frame |
| 4,104,938 | Apparatus For Kerfing Gypsum Wallboard | 8/8/1978 | Nelsson Nels | Disclosed Is A Gypsum Wallboard Panel Having Kerfing In Opposing Edges Thereof Which Extends Substantially The Length Of The Edges But Terminates Prior To The Corners Of The Panel A Distance Sufficient To Prevent Weakening Of The Corners Of The Panels |
| 4,105,423 | Compact Air Filter With Tubular Frame | 8/8/1978 | Latakas Bernard; Copenhefer John E; House Robert M | A Compact Nestable Air Filter Of Generally Rectangular Form Comprising A Frame Formed Of An Integral Suitable Cut And Scored Blank Of Paperboard, Which, When Assembled, Comprises Planar Frame Members Engaging A Substantially Sheet-Form Filter Element Therebetween, And Having Flared Frame Members Disposed At An Angle Of Less Than 180 DEG Permitting A Plurality Of Completed Filters To Nest Within Each Other, Thereby Reducing The Bulk Of The Plurality Of Filters The End Portions Of The Flared Frame Members May Be Connected Together By Several Means, Including Glue Flaps Hingedly Connected To One Frame Member And Adhesively Affixed To An Adjacent Member In An Improved Embodiment The Planar Frame Members On The Bottom Or Downstream Side Of The Filter Are Provided With An Integral Perforated Cover Sheet For Retaining The Filter Element In Place When Subjected To An Air Current The Flared Frame Members Are Provided With Edge Panels Interconnecting The Upper And Lower Panels Forming The Frame Members As A Result The Flared Frame Members Have A Tubular Contour, Greatly Increasing Their Strength And Rigidity |
| 4,106,251 | Relocatable Wall Mounting System | 8/15/1978 | Nelsson Nels | A Relocatable Wall Mounting System Is Disclosed Making Use Of A Half-Clip Which, When Mounted Adjacent To A Like Half-Clip At The Abutting Edges Of Wallboard Panels, Forms A Spring Clip Attachment For Engaging A Slot In A Support Member To Attach The Panels To The Support Member The Half-Clip Has: A First Shoulder Section Adaptable To Be Driven Into The End Of The Wallboard Panel; A Base Section Extending From The Shoulder Section; A Second Shoulder Section Connected To The Base Section And Extending In The Direction Of The End To Be Driven Into The Panel; And A Curved Spring Arm Extending Outwardly And Curving Arcuately In The Direction Of The End To Be Driven Into The Panel |
| 4,106,921 | Apparatus For Low Pressure Air Fiberization Of Mineral Fiber | 8/15/1978 | Porter, William F. | An Apparatus For Producing Mineral Fibers By Low Pressure Air Fiberization Having A Housing Defining A Substantially Toroidal Air Chamber Formed Of A Forward Vertical Wall And Having A Substantially Circular Central Opening, An Annular Slot Provided Around The Central Opening, And An Air Inlet Provided At A Portion Of The Chamber A Cup-Form Spinner Is Mounted On A Substantially Horizontally Oriented Shaft Arranged To Be Rotated The Spinner Is Mounted In Front Of The Forward Wall Of The Plenum And With The Open End Facing The Forward Wall A Duct Is Provided To Direct Molten Slag Into The Spinning Cup Which Ejects Molten Slag Into An Air Stream Emitted From The Annular Slot Of The Chamber, Thereby Producing Mineral Fiber Of Excellent Quality |
| 4,107,887 | Sound Absorbing System | 8/22/1978 | Wendt, Alan C. | A Clip Is Disclosed For Securing Sound Absorbing Panels Or The Like To Supporting Structures The Clip Has A Wall Plate, A Projection Extending Outwardly From The Wall Plate And At Least Two Securing Members At The End Of The Projection Opposite The Wall Plate, With The Securing Members Each Extending Further In One Direction From The Projection Than Their Extension From The Projection In The Opposing Direction PAL A Sound Absorbing System Is Disclosed And Includes A Supporting Structure, Clips, As Defined Above, Attached To The Supporting Structure, And Sound Absorbing Panels Attached To The Clips The Sound Absorbing Panels Comprise A Sound Absorbing Panel With A Frame Extending Around The Exterior Perimeter Of The Panel, And The Frame Has A Plurality Of Openings For Accepting The Securing Members The Securing Members Are Placed Into The Openings To Attach The Sound Absorbing Panels To The Supporting Structure |
| 4,111,673 | Mineral Fiberizing Wheel | 9/5/1978 | C. Van Natta | Mineral Fiberizing Wheel |
| 4,113,219 | Adjustable Pedestal For Elevated Floors | 9/12/1978 | Mieyal, David F. | A Pedestal Assembly For Supporting Elevated Floors Having Means For Adjusting Its Height In The Form Of A Generally Triangular Wedge The Wedge Is Horizontally Displaceable On The Assembly To Cam An Upper Carrier Element Of The Assembly Into A Desired Elevation The Assembly Is Provided With Self-Locking Means To Maintain The Wedge And Carrier Elements In Their Selected Positions The Self-Locking Means Comprises A Taper Lock And Supplementary Locking Teeth Operative On The Wedge In Response To Loading Applied Thereto Through The Carrier Element |
| 4,117,070 | Process For Preparing Calcined Gypsum | 9/26/1978 | O'Neill, Eugene Edward | An Improved Process For Producing Calcined Gypsum Which Comprises Continuously Treating A Mass Of Calcined Gypsum By Adding, With Thorough Blending Agitation, Small Metered Portions Of Water To Result In The Incorporation Of About 1-8% Free Water In The Mass By Weight Of The Gypsum, Allowing The Blended Mass To Heal The Calcium Sulfate Hemihydrate Surface Fissures And Thereafter Continuously Supplying The Treated Gypsum Mass Into Gypsum Board Production |
| 4,117,183 | Starch-Coated Paper And Gypsum Wallboard Prepared Therewith | 9/26/1978 | Long William J | A Specially Prepared Paper Bond Liner, Gypsum Wallboard, And Gypsum Wallboard Process Which Bonds The Liner To The Core By An Adhesive Confined To The Paper-Core Interface, The Adhesive Comprising Certain Starches Placed On The Bond Liner In Their Raw State |
| 4,119,338 | Carpet Kicker Having Means For Adjusting Shank Length | 10/10/1978 | Agcaoili, Clarito R. | A Carpet Stretcher Or Kicker Operable By Engagement With The Knee Of An Operator, The Carpet Stretcher Or Handle Having A Shank, A Head With Carpet-Engaging Pins Adjustably Mounted Therein Positioned At One End Of The Shank, And A Kicking Plate Having A Padded Cover At The Other End, The Shank Being Formed Of Telescoping Shank Members Which May Be Rotated Ninety Degrees With Respect To Each Other For Disengagement, Moved Longitudinally With Respect To Each Other To Obtain The Desired Shank Length, And Then Rotated Ninety Degress With Respect To The Original Relative Position To Lock The Members Axially With Respect To Each Other |
| 4,119,752 | Gypsum Wallboard-Making Process And Product | 10/10/1978 | Long William J | A Specially Prepared Paper Bond Liner, Gypsum Wallboard, And Gypsum Wallboard Process Which Bonds The Liner To The Core By An Adhesive Confined To The Paper-Core Interface, The Adhesive Comprising Certain Starches Placed On The Bond Liner In Their Raw State |
| 4,127,635 | Method For Extruding Thermoplastic Polymers | 11/28/1978 | Gauthier Ray J | Profiles May Be Extruded Directly From Powdered ABS Or Other Similar Thermoplastic Materials Without Pelletizing The Feed Material, By Compounding Under Dry Air Flush Conditions; Maintaining Dry Air Atmosphere Conditions On The Compounded Materials Until Charged Into The Extruder; And Providing Vacuum Venting In The Decompression Zone Of The Extruder, With Optional Condensation Inducement And Entrapment In The Vent Method And Apparatus Are Disclosed |
| 4,127,974 | Outside Corner Trim For Building | 12/5/1978 | Wendt, Alan C. | This Invention Pertains To An Integral One Piece Corner Trim Member For An Outside Corner Of A Building Structure Or Interior Partition Wherein The Trim Piece Comprises An Extruded Section Formed From A Suitable Vinyl Material And Having An Integral Barb At The Inner Side Thereof To Hold The Corner Piece In Position On The Building Structure Until It Is Fixedly Secured To The Building Walls |
| 4,130,458 | Product Containing Alumina Trihydrate & A Source Of B2o3 & M Ethod | 12/19/1978 | G. Moore, C. Fischer | Product Containing Alumina Trihydrate & A Source Of B2o3 & M Ethod |
| 4,142,471 | Pallet Having Reinforced Gypsum Structural Members | 3/6/1979 | Mustoe; Robert M.; Zajonc; Fred H. | A Pallet Comprising A Generally Flat Top Sheet And A Generally Flat Bottom Sheet Spaced From The Top Sheet A Plurality Of Sills Constructed From Elongate Generally Flat Rehydrated Gypsum Strips Are Sandwiched Between The Top And Bottom Sheets A Water-Impervious Cover Is Closely Positioned Over The Sheets And Over The Edges Of The Sills |
| 4,150,083 | Contouring Gypsum Articles | 4/17/1979 | Baehr Donald O | An Improved Process For Forming Cast Articles Of Plaster Reinforced With Fibers Is Disclosed Wherein Low Consistency Plaster Slurries That Include A Fluidizing Agent And Fibrous Reinforcing Materials Are Co-Sprayed Onto A Sectionalized Casting Bed Having A Flexible Membrane Section Connecting Rigid Sheet Forming Bed Portions; Allowed To Stand In A Horizontal Position Through Initial Stiffening; And Then Before The Slurry Has Set, The Sectionalized Casting Bed Is Reformed So As To Produce A Contoured Shape To The Gypsum Cement Sheet |
| 4,151,691 | Wall Partition Assembly | 5/1/1979 | Wendt, Alan C. | A Hollow Wall Partition Assembly Is Disclosed Which Comprises A Flanged Ceiling Rail, Two Opposing Spaced Apart Rows Of Wall Panels, Snap-On Trim Pieces Engaging Grooves On The Ceiling Rail Whereby The Snap-On Trim Pieces Conceal Exposed Unfinished Portions Of The Ceiling Rail The Partition Assembly Includes A Snap-On Glazing Cover For Window Framing Which Is Engageable With The Assembled Ceiling Rail And Snap-On Trim Pieces A Mullion And Jamb Attachment Clip Is Provided For Attaching Door Frame Jambs And Vertical Mullions To The Assembled Ceiling Rail And Snap-On Trim Pieces |
| 4,152,878 | Stud For Forming Fire-Rated Wall And Structure Formed Therewith | 5/8/1979 | Balinski, Henry A. | A Metal Stud For Constructing A Fire-Rated Wall And The Wall Structure Formed Of A Plurality Of Studs Mounted In Runners And Having At Least A Pair Of Spaced-Apart Layers Of Wallboard Panels With Adjacent Panels In Abutting Relationship, The Stud Being Formed Of An Integral Piece Of Sheet Metal And Comprising A Single Layer Web Having A First Plurality Of Oppositely Directed Flange Means At One Edge Thereof And A Second Pair Of Oppositely Directed Flange Means Connected To The Web Means At The Other End Thereof And Spaced-Apart From The First Pair Of Flange Means A Sufficient Distance To Provide A Pair Of Oppositely Directed Channels Receiving The Edges Of Adjacent Panels Of A Single Layer, And Means Extending Away From The Second Pair Of Oppositely Directed Flange Means And Being Connected To And Supporting A Panel Spaced Apart From The First And Second Pairs Of Flange Means And Adapted To Have The Wallboard Panels Of A Second Layer Affixed Thereto In Parallel Spaced-Apart Relationship With Regard To The First Layer Of Wallboard Panels In An Improved Embodiment A Plurality Of Apertures Are Provided In The Web To Reduce Heat Transfer Therethrough And Facilitate Heat Dissipation From The Wallboard Panels, Thereby Permitting The Wall Structure To Obtain A Favorable ASTM Fire Rating |
| 4,153,373 | Apparatus And Process For Preparing Calcined Gypsum | 5/8/1979 | O'Neill, Eugene E. | An Apparatus And Process For Preparing Calcined Gypsum Which Comprises Continuously Treating A Mass Of Calcined Gypsum By Adding, With Thorough Blending, Metered Portions Of Water To The Calcined Gypsum The Water Is Incorporated Into The Calcined Gypsum As A Continuous, Free-Falling Stream Immediately After The Gypsum Enters The Blender Container Near The Top Of Its Sidewall The Water Must Be Added Carefully So As Not To Contact Either The Side Wall Of The Blender Container Or The Propeller Blade Mounted In The Center Of The Apparatus On A Shaft Projecting Upwardly From The Bottom And With The Propeller Spaced From The Bottom Of The Container The Water Is Added In Amounts Ranging From About 1 To About 16% Of Free Water By Weight Of The Calcined Gypsum Fed To The Blender Apparatus The Calcined Gypsum Fed To The Blender, After Adding The Water, Is Swept Down The Side Wall Of The Container, Flows Around The Propeller, And Then Is Swept Up The Side Wall To An Exit Port Preferably Located Near The Top Of The Side Wall And Near The Port Where The Gypsum Enters The Container |
| 4,154,035 | Ceiling Runner Attachment System And Clip Therefor | 5/15/1979 | Wendt, Alan C. | An Attachment System, And Attachment Clip Therefor, Is Disclosed For Attaching Panel Engaging Ceiling Runners, Positioned Either Parallel Or Perpendicular, To Air Distribution Bar Structures And Inverted-T Runner Ceiling Supporting Structures |
| 4,154,799 | Dicalcium Phosphate Manufacture | 5/15/1979 | Hauge, Douglas O. | A Process Is Described For Highly Efficient Recovery Of Phosphate Values From A Wide Range Of Phosphate Rock Including Low Grade Phosphate Rock Material By Leaching With A Dilute Sulfuric Acid And Precipitating Phosphate Values As Dicalcium Phosphate Water Savings Are Accomplished In The Process By The Use Of Sea Water Instead Of Fresh Water |
| 4,161,390 | Calcining Kettle Having Multi-Pass Heating System | 7/17/1979 | Page, John ; Leding, Francis R. | A Calcining Apparatus Comprising A Kettle, A Heating Jacket Surrounding The Kettle Defining A Heating Chamber, Vertical Baffles Dividing Said Heating Chamber Into A Plurality Of Chambers, And A Plurality Of Horizontally Disposed Heating Flues Communicating With Said Chambers Defining A Path Whereby The Heating Gas Provided For Heating Said Apparatus Makes At Least Two Horizontal Passes Through Said Kettle Before Being Exhausted, The Calcining Apparatus Being Adaptable For Calcining Material Such As Gypsum In Either A Continuous Or Batch Process |
| 4,161,856 | Suspension Ceiling System | 7/24/1979 | D. Brown, P. Lalonde | Suspension Ceiling System |
| 4,169,747 | Composition For Accelerating The Setting Of Calcined Gypsum And The Product Formed Thereby | 10/2/1979 | De Rooy, Felix J. ; Daniel, Thell D. ; Annes, Erle C. ; Arnold, Billy G. | A Composition For Accelerating The Setting Of An Aqueous Calcined Gypsum Slurry, The Composition Comprising Finely Ground Calcium Sulfate Dihydrate And A Lignosulfonate The Composition, When Added To An Aqueous Calcined Gypsum Slurry, Accelerates The Setting Process And Shortens The Set Time Period As Determined By The Temperature Rise Set Test Procedure The Composition Is Useful For Making Gypsum Wallboard |
| 4,170,858 | Resilient Runner For Wall Construction | 10/16/1979 | Walker, Keith W. | A Resilient Sheet Metal Runner For Attaching Wallboard To A Supporting Structure Comprising A Base Attaching Flange Having A Resilient Web Coextensive Therewith And Integral With A Longitudinal Edge Thereof With A Support Portion Integral With An Opposite Edge Of The Resilient Web And A Stop Flange Integral With The Opposite Edge Of The Support Portion The Base Flange Is Disposed In A First Plane, The Flexible Web Is Disposed In A Second Plane At An Obtuse Angle To That Of The Base Flange And With Respect To A Third Plane Represented By The Support Portion The Stop Flange Extends At An Obtuse Angle Toward The First Plane In A Fourth Plane Which It Occupies But Is Of Less Width Than The Resilient Web So That It Does Not Extend Into The First Plane The Resilient Web Is Slotted For Increased Flexibility And The Base Attaching Flange Is Provided With Laterally Offset Fastener Tabs To Space The Attaching Flange From The Supporting Structure And Thus Obtain Further Improvement In The Prevention Of Transmission Of Vibrations Impinging On The Wallboards Mounted On The Sheet Metal Runners |
| 4,183,987 | Kerfed Edge Gypsum Board Having Improved Edge Strength | 1/15/1980 | Eby Lawrence T; Nelsson Nels | Disclosed Is A Gypsum Board Having A Kerfed Edge Along Substantially The Full Length Of At Least One Edge Wherein The Kerf Has Sidewalls Inclined Opposingly Inwardly Toward One Another But Do Not Intersect And Are Joined By A Bottom Surface Of Uneven Profile Characterized By Alternately And Irregularly Spaced Projections And Depressions The Uneven Bottom Surface And Each Sidewall Meet At A Jagged Intersection Said Kerfed Edge Provides Enhanced Strength In A Direction Perpendicular To The Sidewalls Providing Improved Board Retention By Flanged Supports Over That Of Conventional Mechanically Sawn Kerfed Edge Boards A Process For Providing Kerfed Edge Gypsum Board Is Also Disclosed Which Comprises Projecting Into The Board Edge A First And Second Fine Stream Of Aqueous Liquid Which Incline Toward One Another At Angles Of Incidence To A Line Perpendicular To The Board Edge Which Provides A Combined Angle Therebetween Of From About 3 DEG To About 20 DEG Both First And Second Fine Streams Of Aqueous Liquid Are Projected At A Pressure Sufficient To Cut To Substantially The Same Depth Of From About One-Quarter To About Three-Quarter Inches The Process Is Dustless And Provides A Kerf Having Two Opposing Sidewalls Inclined Toward One Another And Joined By A Bottom Uneven Jagged Surface Providing Increased Strength Exceeding That Of Boards Kerfed By Conventional Mechanical Sawing Processes |
| 4,184,887 | Plaster Composition Containing Water-Reducing Agent | 1/22/1980 | Lange, Robert G. ; Schlotthauer, Harley L. | A Plaster Composition Containing An Agent For Reducing The Amount Of Water Necessary In Forming A Pourable Aqueous Calcined Gypsum Slurry, The Agent Comprising A High Potassium Salt Of A Condensation Product Of Naphthalene And Sulfonic Acid Having A Molecular Weight Between About 300 And 3,000 Aqueous Plaster Slurries Containing The Agent Are Pourable, Moldable And Castable With Much Less Excess Water Than Ordinarily Required, Resulting In Dried Cast Products Of Increased Strength And Other Physical Property Benefits |
| 4,189,893 | Ceiling Runner And Panel Assembly Having Sliding Lockability | 2/26/1980 | Kuhr, Albert F. | A Ceiling Runner And Panel Assembly Is Disclosed For A Suspended Concealed Ceiling System The Assembly Provides Sliding Lockability And Comprises Vertically Adjustable Hanger Brackets Supporting Inverted-T Runners Concealed Within Ceiling Tile Kerfed Marginal Edges The Ceiling Tile Edges Have Upper Portions Removed At Periodic Intervals Corresponding To Tab Portions On The Arms Of The Runners The Assembly Provides Simplified Installation And Accessibility Of Facilitating Tile Engagement With The Inverted-T Runners By Lifting And Shifting To Slidably Lock The Tap Portions Within The Kerfed Edges The Ceiling Is Leveled By Means Of Vertically Adjustable Hanger Brackets Rigidly Supporting The Runners From Fixed Upper Support Structures |
| 4,195,109 | Polymeric Adhesive-Coated Paper And Gypsum Wallboard Prepared Therewith | 3/25/1980 | Long William J | A Composition Comprising An Aqueous Suspension Of A Polymeric Adhesive Composition Such As A Latex Or Emulsion Is Coated On A Paper Cover Sheet In A Selective Pattern Such That The Composition Is Disposed Only At Limited Areas Of The Bond Liner Surface, And Wherein Substantial Areas Of The Bond Liner Surface Are Free Of Coating; The Coated Paper, Either In The Wet Stage Or After Drying Being Used In The Form Of Paper Cover Sheets To Form Gypsum Wallboard By Applying An Aqueous Slurry Of Calcined Gypsum, Which May Be Free Of Any Additional Adhesive Material, To The Coated Surface And Setting The Gypsum, Resulting In A Gypsum Wallboard Having Excellent Adhesion Between The Paper Cover Sheets And The Gypsum Core |
| 4,195,110 | Glass-Reinforced Composite Gypsum Board | 3/25/1980 | Dierks Robert P; Rillie Robert J | A Reinforced Gypsum Board Having Glass Fibers Concentrated In The Portions Of The Rehydrated Stucco Immediately Below The Surfaces Of The Board, These Portions Being Further Defined By A Density That Is Substantially Greater Than That Of The Interior Portion Of The Board |
| 4,201,595 | Process For Preparing Calcined Gypsum And Gypsum Board | 5/6/1980 | O'Neill, Eugene E. | A Process For Preparing Calcined Gypsum (Stucco) Which Comprises Treating A Mass Of Calcined Gypsum By Adding, With Thorough Blending, Small Portions Of Water (About 1-10% By Weight) To The Calcined Gypsum, Allowing It To Heal, And Grinding The Healed Stucco To Recapture The Rate Of Strength Development And The Ultimate Strength Which Are Adversely Affected By The Water Addition The Principal Advantage Provided By The Addition Of Small Portions Of Water Is A Reduction In Water Demand Which Is Retained Despite The Grinding And Optional Drying Of The Healed Stucco If The Treated Calcined Gypsum Is Not Used Shortly After The Healing Procedure, It Should Be Dried To Provide Storage Stability The Reduced Water Demand Is Particularly Useful In Gypsum Board Manufacture |
| 4,206,578 | Grid Tee For Suspension Ceilings Or The Like | 6/10/1980 | D. Mieyal | Grid Tee For Suspension Ceilings Or The Like |
| 4,208,851 | Suspended Ceiling System | 6/24/1980 | G. Sauer | Suspended Ceiling System |
| 4,209,953 | Ceiling Runner Attachment System And Clip Therefor | 7/1/1980 | Wendt, Alan C. | An Attachment System, And Attachment Clip Therefor, Is Disclosed For Attaching Panel Engaging Ceiling Runners, Positioned Either Parallel Or Perpendicular, To Air Distribution Bar Structures And Inverted-T Runner Ceiling Supporting Structures |
| 4,214,414 | Remountable Unitary Wall Base Trim | 7/29/1980 | Wendt Alan C | A Remountable Unitary Extruded Plastic Base For Wall Construction Providing A Decorative Finished Appearance, Said Extrusion Having A Preinstalled Generally L-Shape Comprising A First Leg Connected To A Second Longer Leg By Means Of A Flexible Hinge Connection Wherein The First Leg Is Rotated To Snap Engage With The Second Leg To Thereby Conceal An Attachment Surface Having Fasteners Therethrough, Wherein The Attachment Surface And Fasteners Are Concealed Within A Pocket Portion Between The First Leg And Second Leg |
| 4,218,848 | Plastic Foam-Filled Door Having Integral Plastic Housing Defining Lock Cylinder And Lock Bolt Chambers | 8/26/1980 | Nelson, David M. | A Door Formed Of A Pair Of Spaced-Apart Metal Skins And A Core Provided Intermediate The Skins Composed Of A Foamed Plastic Material A Plastic Housing Is Provided Having A Wall Substantially Perpendicular To And Engaging The Metal Skins And Cooperating Therewith To Define A Lock Cylinder Chamber And A Communicating Lock Bolt Chamber And Preventing The Foam Plastic Material From Entering The Chambers |
| 4,223,494 | Doorframe Assembly For Partition Wall Construction | 9/23/1980 | Wendt, Alan C. | A Doorframe Assembly For Partition Wall Construction Is Disclosed And Comprises Metal Backer Jamb Members Adapted For Attachment To Opposite Sides Of A Door Opening, Vinyl Jamb Members Snap-Engaged With The Metal Backer Jamb Members, Hinge Plate Means For Supporting A Door Attached Along A Longitudinal Recess Portion Of A Vinyl Jamb Member At One Side Of The Door Opening, Strike Plate Means Adapted For Receiving Door Locking Means Attached Along A Longitudinal Recess Of A Vinyl Jamb Member At The Opposite Side Of The Door Opening, And, Mortising Vinyl Trim Adhered Along Remaining Open Portions Of The Vinyl Jamb Members At Both Sides Of The Door Opening And Having A Thickness Substantially The Same As The Hinge Plate Means And Strike Plate Means Providing A Mortised Generally Planar Finished Surface Along The Vinyl Jamb Members |
| 4,227,355 | Support System For Sound Absorbing Panels | 10/14/1980 | Wendt, Alan C. | A Hanger Bracket Is Disclosed For Supporting And Connecting Sound Absorption Panels Wherein The Panels Have A Top Frame Member With A Depending Lip Portion The Hanger Bracket Is Usable For Both Fixed And Movable Sound Absorption Walls The Hanger Bracket Is Comprised Of Two Substantially Identical Bracket Members Having Upper And Lower Generally Vertical Plates Residing In Offset Substantially Parallel Planes The Bracket Members Are Connected To Each Other, And To The Support Member, By Connector Means At The Upper Vertical Plates The Lower Plates Have At Least One Punched-Out Tab Portion Extending Generally Inwardly Then Upwardly Which Engage The Depending Lip Of The Panel Frame To Thereby Support The Panel PAL The Hanger Bracket Is Attachable To Both A Fixed Support Member And To A Movable Trolley Support Member A Fixed Sound Absorption Wall Having One Or More Sound Absorbing Panels Is Provided Wherein The Hanger Bracket Supports The Panels And Is Secured To A Fixed Support Member A Movable Sound Absorption Wall Is Disclosed Wherein One Or More Sound Absorbing Panels Are Movably Supported By The Hanger Bracket Which Is Attached To A Horizontally Movable Trolley Engaging A Support Track |
| 4,227,360 | Resilient Furring Member | 10/14/1980 | Balinski, Henry A. | A Resilient Metal Runner For Attaching Gypsum Wallboard To A Supporting Structure Including A Base Attaching Flange With A Curved Over Section Merging Into A Flexible Web Which Is Integral With A First Flange Extending At An Inclined Angle From An Edge Of The Flexible Web And A Support Portion Having One Edge Coextensive With The Adjoining Edge Of Such Angled Flange In Laterally Offset Relation To The Flexible Web With An Inclined Stop Flange Coextensive With The Opposite Edge Of The Support Portions And Extending At An Opposite Angle To The First Flange And Of Substantially Similar Width To The First Flange The Flexible Web Is Provided With Cutout Portions For The Securement Of Fastenings Through The Base Attaching Flange |
| 4,227,965 | Production Of Hardboard | 10/14/1980 | Luszczak Myron M | A Process For Improving The Strengths And Resistance To Water Absorption Of Wood Fiber Hardboard, Along With A Lessening In The Number Of Conventional Steps, Is Disclosed Hardboard Is Thereby Produced By A Process Wherein Drying Oil Is Added To The Wood Chips Prior To The Pulp Preparation Stage; And Optionally An Oxidation Accelerator Is Added During The Pulp Preparation Stage The Hardboard Is Then Formed In The Usual Manner Without Requiring The Conventional Addition Of Binder Ingredients In The Stock Chest, Without Requiring Conventional Baking Following Pressing And, In The Case Of "Tempered" Hardboard Without Requiring The Subsequent Addition Of Tempering Materials And Baking Following The Conventional Press Operation |
| 4,231,205 | Steel Edge Gypsum Wall Panel | 11/4/1980 | Wendt, Alan C. | A Steel Edged Gypsum Wall Panel Engageable By Flanged Studs Is Disclosed The Panel Having A Body Portion Being From About 5/16 Inches To About 3/4 Inches Thick With Front And Back Faces And Having Opposite Marginal Edges Said Steel Edging Having A Channel Shape And Comprising A Front Flange, A Back Flange, And A Web Portion Integrally Connecting Said Flanges And Adapted To Contact The Marginal Edges Wherein Said Back Flange Terminates In A Return Flange Providing An Engageable Slot Therebetween |
| 4,231,978 | High Density Low Porosity Refractory Product & Process For Ma King Same | 11/4/1980 | J. Crookston | High Density Low Porosity Refractory Product & Process For Ma King Same |
| 4,232,594 | Modular Ceiling Panel Unit Usable With Air Distribution Systems | 11/11/1980 | Kuhr; Albert F. | A Modular Ceiling Panel Unit Adapted For Use With Conventional Air Distribution Mechanisms In Suspended Ceiling Grid Systems Utilizing Inverted-T Runners Suspended From Upper Support Structures Is Disclosed The Panel Unit Has A Body Portion Having A Rectangular Configuration With Opposite Parallel Panel Faces And Four Edges At Least Two Of The Opposite Panel Edges Have Generally H-Shaped Integral Air Distribution Strips, Having An Inner, An Outer, And Cross-Web Portion Therebetween, Fixedly Engaged Thereto For Substantially The Full Length Of The Edge The Air Distribution Strips Comprise Means Along The Inner Leg Of The H-Shape Engaging The Panel Body Portion Edge And Means At The Outer Leg Of The H-Shape Supportively Associated With An Arm Of An Inverted-T Runner The Cross-Web Of The H-Shaped Air Distribution Strip Is Adapted To Supportively Associate With A Mounting Portion Of A Conventional Air Distribution Mechanism Positioned In The Plenum Between The Ceiling Grid System And Upper Support Structure |
| 4,233,368 | Method For The Production Of Glass Fiber-Reinforced Gypsum Sheets And Gypsum Board Formed Therefrom | 11/11/1980 | Baehr, Donald O. ; Izard, David G. | A Fiber-Reinforced Cementitious Sheet Is Formed By First Co-Mixing In An Air Current Reinforcing Fibers Such As Glass Fibers, And Cementitious Mineral Materials In Finely Particulate Form Such As Calcium Sulfate Hemihydrate, Both In Substantially Dry Form, Depositing The Mixture On A Moving Foraminous Surface By Means Of The Air Current To Form A Sheet, Applying Water As By Spraying In At Least An Amount Which Is Stoichiometrically Sufficient To Hydrate The Calcium Sulfate Hemihydrate To The Dihydrate Form And To Provide The Necessary Degree Of Plasticity To The Mixture, Densifying The Sheet By Compression, And Setting And Drying The Sheet A Pair Of Sheets May Be Utilized As Face Sheets And, Prior To Setting, Combined With A Core Formed Of For Example A Calcium Sulfate Hemihydrate Slurry, And The Sheets And Core Then Set And Dried To Form A Paper-Free Gypsum Board Having Excellent Strength, Surface Hardness, And Fire-Resistant Properties |
| 4,233,833 | Method For Stretching Sheet Metal And Structural Members Formed Therefrom | 11/18/1980 | Balinski, Henry A. | Sheet Metal Is Processed By Providing One Or More Corrugations Longitudinally Along The Sheet In A Position Spaced From Both Lateral Edges Of The Sheet While The Lateral Edges Are Maintained In Fixed Relationship To Each Other, Thereby Causing The Sheet Metal Portion Containing The Corrugations To Be Stretched The Corrugated Portion Is Subsequently Rolled Or Otherwise Pressed To Flatten Out The Corrugations Either Partially Or Completely, Resulting In A Sheet Which Is Wider Than The Original, But Which Still Has Certain Areas Having The Original Thickness The Sheet Metal Thus Processed May Be Utilized To Form Structural Members Such As Channels Or Studs Which Are Less Expensive For A Given Size Than Conventional Structural Members, But Which Still Exhibit Sufficient Supportive Strength By Virtue Of The Portions Thereof Which Retain Their Original Thickness |
| 4,237,260 | Plaster Consistency Reducer | 12/2/1980 | Lange, Robert G. ; Schlotthauer, Harley L. | An Additive For Reducing The Amount Of Water Necessary In Forming A Pourable Aqueous Calcined Gypsum Slurry, The Additive Comprising A High Potassium Salt Of A Condensation Product Of Naphthalene And Sulfonic Acid Having A Molecular Weight Between About 300 And 3,000 Aqueous Plaster Slurries Containing The Additive Are Pourable, Moldable And Castable With Much Less Excess Water Than Ordinarily Required, Resulting In Dried Cast Products Of Increased Strength And Other Physical Property Benefits |
| 4,238,238 | Calcining Kettle Having Means For Returning Stack Exhaust Gas To Calcining Mixture | 12/9/1980 | Kinkade William A; Mccleary Robert E | A Calcining Apparatus Comprising A Kettle, A Heating Chamber For Heating The Outside Of The Kettle, A Stack For Exhausting Gas From The Heating Chamber, A Duct Connected At One End To The Stack And Having The Other End Extending For A Limited Distance Into The Contents Of The Reaction Chamber Of The Kettle For Introducing A Portion Of The Stack Gas Directly Into The Calcining Reaction Mixture, And Means For Propelling The Stack Gas Through The Duct And Into The Reaction Chamber Of The Kettle, Thereby Directly Adding Heat To The Reaction Mixture And Accomplishing Fuel Conservation By Recapturing And Utilizing A Portion Of The Heat From The Stack Gas |
| 4,238,445 | Process For Manufacturing Gypsum Board | 12/9/1980 | Stone, Richard F. | A Process And Apparatus For Producing A Healed Stucco Having Lowered Water Demand Without Loss Of Normal Strength Development Potential Which Comprises, While Blending A Small Amount Of Water With The Calcined Gypsum, Simultaneously Or Substantially Simultaneously Grinding The Calcined Gypsum So As To Increase The Surface Area Of The Calcined Gypsum Particles While Incorporating About 1-10% By Weight Of The Calcined Gypsum Of Free Water |
| 4,241,553 | Mobile Home Ceiling Construction And Method For Making | 12/30/1980 | Reicherts, James E. ; Veschuroff, William C. | A Mobile Home Ceiling Unit And A Method For Manufacturing Said Unit Are Disclosed The Mobile Home Ceiling Unit Comprises An Arranged Plurality Of Panels Fastened To A Roof Frame The Roof Frame Has An Outer Truss Member At Opposite Ends And A Multiplicity Of Intermediate Truss Members Therebetween Intermediate Truss Members Being Rigidly Affixed To The Panels By Means Of Back Fasteners And Adhesive Material The Roof Frame Additionally Provides Perimeter Side Edge Rails The Side Edge Rails And Outer Truss Members Are Fastened To The Panels By Means Of Front Face Fasteners Along The Perimeter Of The Front Face Surface Of The Panel Arrangement The Front Face Surface Perimeter Of The Ceiling Unit Is Adapted To Supportively Coast Along Support Wall Means The Ceiling Unit Provides A Concealed Back Fastened Ceiling Structure Having Unitized Construction A Method For Making Said Unitized, Ready-To-Install, Mobile Home Ceiling Structure Is Also Disclosed The Method Comprises The Steps Of Arranging A Plurality Of Rectangular Panels On A Tunnel Jig A Roof Frame Structure Is Then Positioned And Fastened On The Back Face Surfaces Of The Panels By Means Of Fasteners And Adhesive Along The Bottom Chords Of Intermediate Roof Frame Truss Members The Method Additionally Includes The Step Of Fastening Roof Frame Perimeter Side Edge Rails And Outer Truss Members To The Panel Arrangement Perimeter By Means Of Fasteners Driven Upwardly Through The Front Face Surface Of The Panels To Extend Through The Panels And Penetrate The Side Edge Rails And Outer Truss Members The Method Includes The Step Of Transporting The Mobile Home Ceiling Structure From The Tunnel Jig In Ready-To-Install Condition Wherein The Setup Time Of The Adhesive Material Does Not Restrict Moving The Unit |
| 4,242,406 | Fiber Reinforced Composite Structural Laminate Composed Of Two Layers Tied To One Another By Embedded Fibers Bridging Both Layers | 12/30/1980 | Bouhnini Larbi El; Fitzpatrick Thomas J; Harwick Donald M; Hoffman Robert M; Knoll Wayne M | This Invention Relates To A Structural Laminate Having A Plastic Surface Finish Coat Laminated To A Structural Base Which Has Exceptional Bond Strength Between The Structural Base And The Plastic Layer With Which It Interfaces The Structural Base Comprises A Glass Reinforced Gypsum Layer The Plastic Laminate Portion Comprises A Plastic Surface Finish Coat, Preferably A Polyester Gel Coat Or An Acrylic Resin, Bonded To A Reinforcing Layer Of Curable Polyester Or Epoxy Resin Reinforced With Glass Fibers The Reinforcing Layer Is Adhered To A Bonding Layer Which Comprises Glass Fibers Protruding From The Reinforcing Layer And Coated With A Limited Amount Of Organic Resin Such As Polyester Or Epoxy Resin The Glass Reinforced Gypsum Layer Is Applied To The Protruding Fibers Of The Bonding Layer To Form An Interface Having A Bond Strength Of At Least About 150 Psi As Determined By ASTM C297-68 |
| 4,251,416 | Carpet Backing Adhesive | 2/17/1981 | Palmer Jay W | The Coagulation Of A Styrene Butadiene Latex Emulsion Which Normally Occurs Upon The Introduction Of Gypsum As A Filler In The Preparation Of An Adhesive Composition Is Prevented By The Addition Of Ammonium Sulfate Or Sodium Sulfate Or A Mixture Of The Two To The Emulsion Prior To The Addition Of The Gypsum |
| 4,252,568 | Process For Preparing Calcined Gypsum And Gypsum Board Using Ligno Sulfonates | 2/24/1981 | Bounini, Larbi | A Process For Preparing Calcined Gypsum (Stucco) Which Comprises Treating A Mass Of Calcined Gypsum By Adding, With Thorough Blending, Small Portions Of An Aqueous Solution Of Ligno Sulfonate; Allowing The Treated Stucco To Heal; And Optionally Drying The Healed Stucco And Further Optionally Grinding The Healed Stucco If The Treated Calcined Gypsum Is Not To Be Used Shortly After The Healing Procedure, It Should Be Dried To Provide Storage Stability If Further Strength Is Desired The Treated Stucco Should Be Ground To Expose Fresh Crystal Faces The Process Is Particularly Useful In Gypsum Board Manufacture And Production Of Bagged Building And Industrial Plasters |
| 4,255,910 | Accessible Partition Assembly | 3/17/1981 | Wendt Alan C | An Accessible Partition Assembly Is Disclosed Which Comprises Two Opposed Spaced-Apart Rows Of Panels, Each Panel Having Opposite Vertical Edges, And Interior And Exterior Panel Faces, Adjacent Panels Meeting At Joints In Edge-To-Edge Relationship, A Plurality Of Studs Located Intermediate Said Rows Of Panels, And Positioned At Joints Between A Pair Of Adjacent Panels, Panel And Stud Engageable Means At Each Said Joint, Said Engageable Means Comprising A First And Second Clip, Each Clip Engaging A Stud And One Panel Edge At A Joint, Whereby Panels Are Demountably Engaged To Studs By Means Of A First Clip Engaged At One Vertical Edge And A Second Clip At The Opposite Vertical Edge An Accessible Partition Assembly Is Also Disclosed Wherein Alternate Pairs Of Opposing Corresponding Panels Are Fixedly Engaged And Pairs Of Opposing Corresponding Panels Therebetween Are Demountably Engaged Whereby Fixed Panels Correspondingly Oppose And Demountable Panels Correspondingly Oppose Whereby Fixed Panels Are Engaged Along Both Vertical Edges By First Clips And Removable Panels Are Engaged Along Both Vertical Edges By Second Clips An Accessible Partition Assembly Wherein Panels Along One Row Are Alternately Fixedly Engaged And Demountably Engaged And Corresponding Opposing Panels Along The Other Row Are Alternately Demountably Engaged And Fixedly Engaged Wherein Fixed Panels Oppose Corresponding Demountable Panels |
| 4,257,205 | Attachment System For Suspended Drywall Ceiling Panels | 3/24/1981 | Kuhr, Albert F. | An Attachment System For Suspended Drywall Ceiling Panels Is Disclosed The Attachment System Comprises A Panel Support Grid Having A Series Of Main-Runners And Cross-Runners Disposed With Lower Panel Attachment Surfaces In Generally Co-Planar Relationship And Said Grid Having Intersection Points At Main-Runner And Cross-Runner Crossings The Attachment System Has Attachment Clips Positioned At Said Intersection Points Interconnecting Cross-Runners And Main-Runners The Attachment Clips Being Integrally Constructed From Light-Gauge Steel And Having A Box-Like Configuration With Two Opposing Vertical Walls And Opposing Upper And Lower Horizontal Walls Wherein The Upper Wall Centrally Separates Into Halves The Upper Wall Halves Include Upwardly Extending Tabs With Tab Connecting Means Releasably Connecting Both Halves The Opposing Vertical Walls Of The Attachment Clip Each Having An Oppositely Extending Cross-Runner Attachment Flange Said Clips Engaged In A Sleeve-Like Manner To Said Main-Runners By Means Of The Box-Like Configuration Separating At Said Upper Wall To Extend Around Outer Portions Of Main-Runners A Spacer Key Is Struck Out From The Lower Wall Of The Attachment Clip And Extends Downwardly In A Plane Generally Parallel With The Longitudinal Axis Of The Main-Runner The Attachment System Further Comprises Ceiling Panels Comprised Of Gypsum And Being Mechanically Fastened To Said Lower Panel Attachment Surfaces Wherein Adjacent Panels Meet At Butt Joints Along Cross-Runners And Spaced-Apart Open Joints Along Main-Runners Being Spaced Apart By Said Spacer Keys Of The Attachment Clips |
| 4,257,206 | Fire Rated Ceiling | 3/24/1981 | Mieyal David F | A Channel Structure For Assembly Into A Suspended Ceiling Or The Like And Which Is Arranged To Maintain The Structural Integrity Of The Ceiling During Exposure To The Heat Of A Fire. The Channel Structure Includes An End Splice Arrangement Having Elements Which Develop A Telescoping Relationship Between Joined Channels And Thereby Avoid Buckling During Thermally Induced Axial Expansion Of The Channels. |
| 4,263,764 | Accessible Partition Wall Construction | 4/28/1981 | Wendt Alan C | An Accessible Partition Wall Construction Comprising In Combination: Two Parallel Spaced-Apart Rows Of Wall Panels; Channel-Shaped Studs Disposed At Panel Joints; Stud Clips Engaging The Studs At A Flange And Rib; Interchangeable Panel Clips Removably Engaging The Stud Clips; Whereby The Partition Wall Construction Allows Accessibility By Lifting A Panel Upward To Slide An Overlapped Panel Clip Off A Stud Clip And Then Moving The Panel Horizontally Away From The Construction, And Wherein Reinstallation Is Accommodated By Reversing The Procedure, Whereby Said Panel Clips Are Interchangeable At Either Side Of The Joint And Wherein Extending Projections Of Said Panel Clips Are Substantially Identical And The Panel Clip Is Symmetric About A Horizontal Plane |
| 4,265,979 | Method For The Production Of Glass Fiber-Reinforced Gypsum Sheets And Gypsum Board Formed Therefrom | 5/5/1981 | Baehr Donald O; Izard David G | A Fiber-Reinforced Cementitious Sheet Is Formed By First Co-Mixing In An Air Current Reinforcing Fibers Such As Glass Fibers, And Cementitious Mineral Materials In Finely Particulate Form Such As Calcium Sulfate Hemihydrate, Both In Substantially Dry Form, Depositing The Mixture On A Moving Foraminous Surface By Means Of The Air Current To Form A Sheet, Applying Water As By Spraying In At Least An Amount Which Is Stoichiometrically Sufficiently To Hydrate The Calcium Sulfate Hemihydrate To The Dihydrate Form And To Provide The Necessary Degree Of Plasticity To The Mixture, Densifying The Sheet By Compression, And Setting And Drying The Sheet A Pair Of Sheets May Be Utilized As Face Sheets And, Prior To Setting, Combined With A Core Formed Of For Example A Calcium Sulfate Hemihydrate Slurry, And The Sheets And Core Then Set And Dried To Form A Paper-Free Gypsum Board Having Excellent Strength, Surface Hardness, And Fire-Resistant Properties |
| 4,266,384 | Fire Resistant Ceiling Furring System | 5/12/1981 | Orals, David L. ; Laffoon, James D. | A Fire Resistant Ceiling Furring System Comprising Support Joists In Generally Parallel Alignment, Furring Clips Attaching Furring Channels To The Joists, Furring Channels In Generally Parallel Alignment At Substantially Right Angles To Said Joists Thereby Forming A Generally Grid-Like Configuration, Said Furring Channels Connected At Grid Intersection Points To Said Joists By Means Of Said Furring Clips, Fire Resistant Gypsum Ceiling Panels Affixed At Lower Attachment Surfaces Of Said Furring Channels, And, Mineral Fiber Insulation Provided For Substantially The Full Expanse Of The Ceiling Being Disposed Above, And Supported By, Said Furring Channels Forming A Continuous Layer Beneath Said Joists Whereby Upon Exposure Of The Fire Resistant Ceiling Furring System To Heat From Below The Furring Channels Continue To Support The Mineral Fiber Insulation And Remain Engaged To Said Ceiling Panels During Heat Distortion By Means Of Said Furring Clips Retaining The Furring Channels The Fire Resistant Ceiling Panels Are Held In Place And Retard Cracking And Contraction From Said Heat Said Mineral Fiber Insulation Reduces Heat Transmission To Said Joists Thereby Retarding Harmful Distortion To Said Joists To Inhibit Flame Spread And Heat Damage To Upper Building Portions Above Said Fire Resistant Ceiling Furring System |
| 4,275,541 | Fire Resistant Floor And Ceiling Assembly | 6/30/1981 | Orals, David L. ; Bushey, Peter S. | A Fire Resistant Floor And Ceiling Assembly Comprising In Combination; A Plywood Layer; A Gypsum Floor Underlayment Extending Adjacent Below Said Plywood Layer; A Series Of Steel Joists Located Below Said Underlayment And Supporting The Plywood And Underlayment; A Space-Apart Multiplicity Of Self-Drilling Self-Tapping Screws Extending Downwardly Through The Plywood And Underlayment, And Engaging Said Steel Joists Thereby Attaching The Plywood And Underlayment To The Steel Joists, Said Screws Having Upper Threads And Lower Threads With An Interrupting Non-Threaded Mid-Portion Therebetween, The Non-Threaded Mid-Portion Extending A Distance Substantially The Same As The Thickness Of Said Plywood Layer; And, At Least One Layer Of Third Generation Fire Resistant Gypsum Board Connected To, And Supported Below, Said Steel Joists By Connecting Means; Whereby Said Assembly Contains No Combustibles In The Plenum Between Said Underlayment And Fire Resistant Gypsum Board, And Whereby Said Assembly Attains At Least A One Hour Fire Rating When Exposed To A Fire Below Said Assembly PAL A Method Of Providing A Fire Resistant Floor And Ceiling Assembly For Steel Joist Construction |
| 4,278,468 | Gypsum Fire Barrier For Cable Fires | 7/14/1981 | Selbe Rexford L; Waropay Vincent M; Quigg Paul S; Reily William S | Electrical Power, Instrument And Communication Cables Constructed With Combustible Coverings Can Provide A Pathway By Which Fire Might Spread Cable Fires Within A Room Or Compartment Can Be Arrested By The Construction Of A Properly Designed "Fire Break" Placed Periodically Along A Cable Run; And Cable Fire Spread Between Rooms Can Be Arrested By A Properly Placed "Fire Stop" Cable Runs Generally Include A Cable Tray Or Raceway To Contain The Cables An Effective Fire Barrier, Eg, "Fire Break" Or "Fire Stop" May Be Constructed In Such A Cable Tray Or Raceway By Filling A Portion Of The Tray Or Raceway With A Gypsum Composition Comprising Gypsum Plaster, An Inert Filler Mixture Of Diatomaceous Earth And Lightweight Expanded Aggregate, And Very Small Amounts Of Glycerin, Boric Acid And A Corrosion Inhibitor Such As A Boron Nitride, Boron Nitrile Or Mixture Of Such Boron Compounds The Fire Barrier Is Formed By Placing In A Portion Of The Cable Tray/Raceway An Aqueous Slurry Of The Plaster Composition As Described Above, Slurried With Water In Amounts Of About 10 Pounds Of The Plaster Composition And 14-16 Pounds Of Water To Form A " Pseudo-Plastic" Mass, And Filling All Of The Voids Around And Beneath Cables Therein By Applying Force To The Cable Tray/Raceway, Eg, As By Hammering With A Rubber Mallet |
| 4,281,480 | Doorframe Construction | 8/4/1981 | Wendt, Alan C. | A Doorframe Assembly For Hollow-Wall Partition Construction Is Disclosed And Comprises Metal Backer Jamb Members Adapted For Attachment To Opposite Sides Of A Door Opening, A Metal Header Member Adapted For Attachment To An Upper Horizontal Side Of A Door Opening, Vinyl Jamb Members Snap-Engaged With The Metal Backer Jamb Members, A Vinyl Header Cover Snap-Engaged With The Metal Header Member, Hinge Plate Means For Supporting A Door Attached Within A Hinge Plate Recess Along A Wall Portion Of A Vinyl Jamb Member At The Hinge Side Of The Door Opening, Strike Plate Means Adapted For Receiving Lockset Means Attached Within A Strike Plate Recess Along A Wall Portion Of A Vinyl Jamb Member At The Lockset Side Of The Door Opening, Wherein Said Assembly Provides An Easily Installed, Finished, And Mortised Construction |
| 4,281,481 | Fire Resistant Aluminum Door Frame Assembly | 8/4/1981 | Wendt Alan C | A Fire Resistant Aluminum Door Frame Assembly Is Provided Which Comprises A Partition Wall Having A Door Opening Therethrough; A Header Assembly; Opposing Jamb Assemblies; A Strike Assembly Disposed Along One Jamb Assembly; At Least One Hinge Assembly Disposed Along The Opposite Jamb Assembly; And A Door Member Supported Within Said Door Opening By Said Hinge Assembly And Having A Lockset Engaging Said Strike Assembly; Whereby Upon Exposure To Extreme Heat, The Door Frame Assembly Accommodates Expansion Of The Header And Jamb Assemblies Without Buckling, And Said Strike And Hinge Assemblies Respectively Maintain Said Door Support And Lockset Engagement Of The Door Member, Wherein Said Door Frame Assembly Attains A Fire Rating |
| 4,282,192 | Process For Producing Calcium Sulfate Product Containing Low Amounts Of Rad | 8/4/1981 | H. Larson | Process For Producing Calcium Sulfate Product Containing Low Amounts Of Rad |
| 4,283,423 | Free-Flowing Granular Urea Nutrient Supplements | 8/11/1981 | Watkins Kenneth R; Bolind Michael L | A Homogeneous, Free-Flowing Urea Containing Composition Which Has Particular Utility As An Animal Feed Supplement Or A Fertilizer Material And An Improved Process For Preparing Same Are Disclosed In The Process Urea And Particular Forms Of Calcium Sulphate Are Intimately Mixed, Optionally With Calcium Phosphate And One Or More Desired Additives, And Pelletized Or Granulated As By Compression Compaction In One Embodiment, Micronutrients Are Blended Into The Urea-Calcium Sulphate Mixture Before Compaction And The Granules So Produced May Be Subsequently Utilized As A Fertilizer Supplement Or In Combination With Primary Nutrients As A Complete Fertilizer In A Second Embodiment, The Urea-Calcium Sulphate Constitute An Animal Feed Supplement To Be Blended With Other, Non-Hygroscopic, Nutrients Such As Calcium Phosphate And The Like In Forming A Silage Or Complete Animal Feed |
| 4,286,991 | Very High Early Strength Cement | 9/1/1981 | Galer, Richard E. ; Webb, Paul C. | A Combination Of A Hydroxy Polycarboxylic Acid And A Starch Hydrolyzate Improves The Compressive Strength At Early And Late Ages Of A Calcium Sulfoaluminate Cement |
| 4,286,992 | Very High Early Strength Cement | 9/1/1981 | Galer, Richard E. ; Webb, Paul C. | A Combination Of A Hydroxy Polycarboxylic Acid And Sucrose Improves The Water-Demand, Setting, And Compressive Strength Properties Of A Calcium Sulfoaluminate Cement To A Greater Degree Than Would Be The Case If The Hypothetical Cumulative Effect Of Two Admixtures Were Operative |
| 4,289,554 | Method For Making A Mobile Home Ceiling Construction | 9/15/1981 | Reicherts James E; Veschuroff William C | A Method For Making A Unitized, Ready-To-Install, Mobile Home Ceiling Structure Is Disclosed The Method Comprises The Steps Of Arranging A Plurality Of Rectangular Panels On A Tunnel Jig A Roof Frame Structure Is Then Positioned And Fastened On The Back Face Surfaces Of The Panels By Means Of Fasteners And Adhesive Along The Bottom Chords Of Intermediate Roof Frame Truss Members The Method Additionally Includes The Step Of Fastening Roof Frame Perimeter Side Edge Rails And Outer Truss Members To The Panel Arrangement Perimeter By Means Of Fasteners Driven Upwardly Through The Front Face Surface Of The Panels To Extend Through The Panels And Penetrate The Side Edges Rails And Outer Truss Members The Method Includes The Step Of Transporting The Mobile Home Ceiling Structure From The Tunnel Jig In Ready-To-Install Condition Wherein The Setup Time Of The Adhesive Material Does Not Restrict Moving The Unit |
| 4,294,054 | Soffit System For Suspended Ceiling | 10/13/1981 | Kuhr, Albert F. | A Decorative Soffit System For Mounting On The Bottom Of Vertically Disposed Ceiling Tile To Enclose A Projection Depending From The Ceiling As Disclosed The Soffit System Having A U-Shaped Channel Member Adapted To Rest On An Inverted-T Runner And Said U-Shaped Channel Member Having A Resilient Spacer Therein To Hold A Vertically Disposed Ceiling Tile Against One Side Thereof |
| 4,295,299 | Steel Clad Wood Door Frame | 10/20/1981 | Nelson David M | A Door Frame Comprising Wood Frame Members Including A Strike Jamb, A Hinge Jamb, And A Header, Said Frame Members Each Being Recessed Longitudinally To Provide A Rabbet Having A Major Surface And A Minor Surface Perpendicular To Said Major Surface, A Slot Substantially Coplanar With The Major Surface Of Said Rabbet Extending Into A Non-Recessed Portion Of Said Member, And A Substantially J-Shaped Metal Frame Reinforcing Member Having A Major Flange, A Minor Flange Substantially Parallel To Said Major Flange, And A Connecting Web Substantially Perpendicular To Said Major And Minor Flanges, Said Minor Flange Engaging The Major Surface Of Said Rabbet And Extending Into Said Slot, And The Major Flange Of Said Reinforcing Member Extending In Engagement With The Outer Surface Of Said Member |
| 4,297,311 | Method Of Manufacturing Improved Mineral Board | 10/27/1981 | N. Sherman, J. Cameron | Method Of Manufacturing Improved Mineral Board |
| 4,309,391 | Lump Process Alpha Gypsum | 1/5/1982 | O'Neill, Eugene | An Improved "Lump" Process For Producing Alpha Gypsum, Calcium Sulfate Hemihydrate, From Natural Gypsum Rock Of The Type Wherein Lumps Of Gypsum Rock Particles (A Minimum Of About 1/2 Inch Or 13 Cm In Size) Are Calcined To Low Water-Demand Alpha Hemihydrate By Autoclaving In A Saturated Steam Atmosphere, Quickly Dried And Pulverized Is Disclosed The Improvement Allows The Thorough Processing Of Natural Gypsum As Large Sized Particles Or Containing Considerable Selenite And Includes The Steps Of Initiating Calcination Without Crystal Habit Modifier And, After Hemihydrate Formation Has Commenced, Adding Crystal Habit Modifier And Completing Calcination Under Increased Steam Pressure |
| 4,312,172 | Automatic Lid Placing Apparatus For Large Plastic Lids And Method For Placing Lids | 1/26/1982 | Fisher, Warren ; Smith, Frank J. | An Apparatus And Method For Automatically Placing Large Plastic Lids Onto Containers Lids 24 Are Dispensed Individually From Magazine 11 Onto Slide 33 Each Dispensed Lid Is Individually Retained At The Bottom Of The Slide 33 For Pickup By A Container 41 The Lid Is Urged Onto The Container By A Pivoted Roller 47 And Further Leveled By A Roller 58 Which Is Extended Twice By A Pneumatic Piston To First Contact A Leading Edge Of The Lid And To Secondly Contact A Trailing Edge Of The Lid Thereafter A Pneumatically Operated Lid Securement Means 61 Comprising A Convex Plate 70' Burps The Air From Beneath The Lid And Fully Seats The Lid On The Container The Apparatus Has Various Sensing Means For Sensing The Depletion Of Lids From Magazine 11, For Sensing That A Lid Has Been Dispensed Onto Slide 33 And For Sensing A Container At The Capping Station The Sensing Means Control The Various Operations Of The Machine In Proper Sequence |
| 4,317,318 | Supporting Grid System Having Interchangeable T Sections | 3/2/1982 | G. Sauer | Supporting Grid System Having Interchangeable T Sections |
| 4,317,641 | Locking Connection For Supporting Grid Systems | 3/2/1982 | G. Sauer | Locking Connection For Supporting Grid Systems |
| 4,328,193 | Process For Removing Radium From Monocalcium Phosphate Solutions By Centrifugation | 5/4/1982 | Larson, Harold V. | Disclosed Is A Method For Treating Substantially Homogeneous Monocalcium Phosphate (MCP) Solutions That Contain Undesirable Amounts Of Radium Which Comprises Centrifuging These MCP Solutions Sufficiently To Separate At Least A Portion Of The Radium From The Solution Such Treated MCP Solutions May Then Be Reacted With Sulfuric Acid To Simultaneously Produce A Phosphoric Acid Solution And A Calcium Sulfate Precipitate Such As Gypsum Having Low Levels Of Radium Content |
| 4,329,820 | Mounting Strip With Carpet Gripping Means For Relocatable Partition Walls | 5/18/1982 | Wendt, Alan C. | A Mounting Strip With Carpet Gripping Means For Relocatable Partition Walls Is Disclosed Said Mounting Strip Comprises A Central Portion Having A Generally Rectangular Configuration, Support Shelves Integral With Said Central Portion And Extending Outwardly From Marginal Edges Thereof, A Multiplicity Of Barbs Extending Downwardly From Said Mounting Strip, Locating Tabs Extending Upwardly From Said Central Portion Along Said Marginal Edges Defining An Accommodating Path For Floor Runners Therebetween Said Mounting Strip Is Capable Of Gripping A Carpet At Said Barbs And Adapted To Support Wall Panels Along Said Support Shelves And Accommodate Floor Runners Between Said Locating Tabs Said Mounting Strip Is Removable Without Harmfully Affecting A Carpet To Permit Relocation Of A Movable Partition Wall Construction Mountable Thereon |
| 4,335,636 | Apparatus For Cutting A Moving Sheet | 6/22/1982 | Porter Michael J | An Apparatus For Cutting A Newly Formed Continuous Sheet Being Transported Longitudinally Along A Belt Conveyor, And Particularly A Newly Formed Gypsum Board Sheet, The Cutting Taking Place In A Direction Transverse To The Direction Of Movement Of The Sheet, Comprising A Frame, A High Pressure Fluid Jet Cutter Mounted To Move Obliquely With Respect To The Direction Of The Moving Sheet, Wherein The Vector Component Of Velocity Of The Forward Motion Of The Cutter Equals The Forward Velocity Of The Moving Sheet, And Means For Rotating The Support On Which The Jet Cutter Is Mounted To Another Oblique Position So That A Successive Cut May Be Made From The Other Side In An Improved Embodiment, Tank Means Is Arranged To Catch The Spent Fluid From The Jet Cutter So That The Cutter May Traverse The Moving Sheet From Either Side Successively Without Turning Off The Fluid Jet |
| 4,342,582 | Apparatus For Fiberization Of Mineral Fiber Having Directional Shroud | 8/3/1982 | Porter William F | An Apparatus For Producing Mineral Fibers By Low Pressure Air Fiberization Having A Housing Defining A Substantially Toroidal Air Chamber And Having A Substantially Circular Central Opening, An Annular Slot Provided Around The Central Opening Having An Annular Shroud Affixed To The Housing At The Outer Edge Of The Annular Slot For Confining And Directing The Primary Jet Leaving The Annular Slot And Enabling It To Be More Efficiently Utilized In Fiberizing The Mineral Fibers A Cup-Form Spinner Is Mounted On A Substantially Horizontally Oriented Shaft Arranged To Be Rotated The Spinner Is Mounted In Front Of The Forward Wall Of The Plenum And With The Open End Facing The Forward Wall A Duct Is Provided To Direct Molten Slag Into The Spinning Cup Which Ejects The Molten Slag Into An Air Stream Directed From The Annular Slot Of The Chamber And The Shroud, Thereby Producing Mineral Fiber Of Excellent Quality And In Greater Yield Than Results When The Shroud Is Not Utilized |
| 4,350,533 | High Early Strength Cement | 9/21/1982 | Galer, Richard E. ; Blasius, John R. ; Webb, Paul C. | A Rapid Reaction Of High Alumina Cement, Gypsum, Lime And Water Produces Cementitious Compositions In Which The Only Significant Factor Contributing To Strength During The Very Early Stages Of Hydration (Ie, A Few Minutes To A Few Hours) Is The Formation Of An Amount Of Ettringite Equal To From About 40% To About 60% Of The Weight The Paste Of Water, The High Alumina Cement, The Gypsum Source, And The Lime Source A Substantially Impermeable Concrete Having A 4-Hour Compressive Strength Of About 8000 Psi May Be Produced From The Cement Powder Of This Invention |
| 4,350,736 | Wear And Water Resistant Plaster Articles | 9/21/1982 | Reily William S | A Method Of Surface Treatment For Plaster Articles To Improve Wear And Water Resistance Is Disclosed The Method Includes The Step Of Forming The Article, Allowing The Article To Set, Drying To Remove Excess Water, Applying A Coat Of Substantially Molten Candelilla Wax Onto An Exterior Surface Of Said Article, Maintaining Said Wax At A Temperature Of No Less Than 155 DEG F (68 DEG C) For Sufficient Period Of Time To Allow Said Wax To Substantially Fill Exterior Pores And Irregularities, And Cooling Said Article To Solidify The Wax Also Disclosed Is A Wear Resistant And Water Repellent Plaster Article Comprising A Formed Plaster Article Having An Exterior Surface Portion Thereof Coated With A Thin Layer Of Candelilla Wax, Said Coated Surface Portion Providing A Substantially Water Impregnable Barrier And Providing Enhanced Wear Resistance |
| 4,354,851 | Method For Making A Decorated, Water-Resistant, Rigid Panel And The Product Made Thereby: Transfer Dye Process Onto Rigid Panel | 10/19/1982 | Hix Daniel H; Closser Daniel D | A Method For Making A Decorated, Water-Resistant, Rigid Panel Comprising Supplying A Cured, Pre-Coated Rigid Panel Having A Clear, Water-Resistant Polymeric Coating On One Surface Of The Panel And A Printed Sheet Having A Design, Picture Or Other Form Of Decoration On One Surface Thereof, Said Decoration Being Formed By A Sublimable Coloring Agent The Rigid Panel And The Printed Sheet Are Originally Maintained At Room Or Ambient Temperature The Coated Surface Of The Rigid Panel And The Decorated Surface Of The Printed Sheet Are Brought Into Physical Contact, And Their Surfaces Are Maintained In Contact For A Brief Period Of Time By Applying Light Pressure Thereto While The Surfaces Are Maintained In Contact, Heat Is Applied Thereto For A Short Period Of Time To Sublime The Coloring Agent And Cause It To Be Transferred To And Penetrate Into The Polymeric Coating On The Surface Of The Rigid Panel The Heat Is Removed From The Surfaces, And The Printed Sheet Is Separated From The Rigid Panel Whose Polymeric Coated Surface Contains The Same Decoration As Appeared On The Printed Sheet The Product Of This Invention Comprises A Decorated, Water-Resistant, Rigid Panel Having A Clear Polymeric Coating On One Surface, Which Coating Is Impregnated By A Sublimable Coloring Agent The Coated Surface Of The Panel Comprises At Least One Clear Polymeric Top Coat And May Have Additional Substrate Coatings Or Layers Of Polymeric Or Other Materials It Is Preferred That The Coated Surface Of The Decorated Panel Have A Light Stability Of At Least About 40 Hours As Measured By The Standard Carbon-Arc Fadometer Test (ASTM G25-70), Continuous Exposure To Light, Test Method A |
| 4,356,675 | Tie-Down Runner For Mobile Home Wall Construction | 11/2/1982 | Reicherts, James E. | A Tie-Down Runner To Increase Resistance To Shear And Racking Forces In Mobile Home Wall Constructions Is Disclosed Said Tie-Down Runner Having A Generally J-Shape And Suitable For Use At Upper And Lower Ends Of Wall Studding To Increase Resistance To Said Forces And To Additionally Provide Increased Attachment Surfaces For Interior Wall Panel Members A Method For Increasing Resistance To Shear And Racking Forces Is Also Provided |
| 4,360,386 | Treating Calcined Gypsum With Solubilizing Agent | 11/23/1982 | Bounini, Larbi | A Process For Producing A Healed Stucco Of Low Water Demand Is Disclosed In Which Calcined Gypsum Is Treated With An Aqueous Solution Of A Gypsum Solubilizing Agent, Preferably In An Impacting Blender While Grinding The Calcined Gypsum To Increase Its Surface Area The Product Can Be Dried For Storage Or Sent Directly To Forming Gypsum Board |
| 4,367,692 | Joint Compound Dispenser | 1/11/1983 | Underwood Arthur A; Radtke Richard L | Wallboard Joint Tape Is Coated With Joint Compound As The Tape Is Drawn Through A Container Of The Compound And Made To Pass Through A Tabbed Slot In Or Associated With The Container The Tabs Urge The Coated Tape Away From The Edge Of The Slot Which Would Otherwise Wipe Off The Coating When The Tape Is Drawn Through The Slot From A Position Higher Than The Slot |
| 4,372,814 | Paper Having Mineral Filler For Use In The Production Of Gypsum Wallboard | 2/8/1983 | Johnstone Norman E Kehoe John R | A Composite Paper Particularly Adapted For Use As Cover Sheets In The Production Of Gypsum Wallboard, The Paper Being Sufficiently Porous To Permit Better Drainage And More Rapid Drying In The Production Of The Paper, And When Applied To The Surfaces Of A Gypsum Slurry For Forming Wallboard, Permits Less Heat To Be Utilized In The Wallboard Conversion, Thereby Saving Energy In The Board Production Required For Drying The Board The Paper Comprises In Weight Percent: (A) Fibers In An Amount Of From About 65% To About 90% And Having A Fiber Freeness Of From About 350 To 550 Ml Canadian Standard Freeness, (B) A Mineral Filler In An Amount From About 10% To About 35%, (C) A Binder In An Amount From About 1% To About 31/2%, (D) A Flocculent In An Amount Of From About 2 To About 4 Lb |
| 4,375,736 | Shower Door Having Adjustable Pivot Members | 3/8/1983 | Teckchandani Lall D | A Pivotal Door For An Entrance Or Passageway, And Particularly For Shower Or Bathtub Enclosures, Comprising A Plurality Of Frame Members, A Panel Mounted In Said Frame Members, A Channel Provided In Both Top And Bottom Frame Members, And A Pair Of Pivot Members Each Having One End Adjustably Retained Within One Of The Channels, And The Other End Engaged In A Socket Provided In The Shower Enclosure Frame, Each Pivot Member Being Arranged To Be Affixed At Any Of A Plurality Of Positions On The Channel To Enable The Door To Be Utilized With Enclosures Having Entrances Of Different Widths |
| 4,376,361 | Partition Wall Construction | 3/15/1983 | Michael, Ralph E. | An Improvement In A Partition Wall Construction Having Two Spaced Apart Rows Of Wall Board Connected To Flanged Studs Wherein Studs Are Supportably Engaged Within Opposingly Spaced Apart Channels, A Bottom Channel Opening Upwardly With Bottom Portions Of The Studs Residing Therein And An Upper Channel Opening Downwardly With Top Portions Of The Studs Residing Therein The Improvement Comprises A Device For Prevention Of Squeaking At Stud And Runner Engagements When Said Partition Well Is Subjected To Racking Forces Said Device Comprising A Plurality Of Clips Each Having In Cross-Section A Hairpin-Like Configuration Wherein An Elongate Plate Portion Terminates In A Thickened Base Portion, Said Base Portion Having An Angled Plate Portion Including A First Leg Angling Back Toward The Elongate Plate, And Then Terminating In An Outwardly Angling Second Leg Portion, Said Configuration Forming A Hairpin-Like Shape Defining A Slot Between The Elongate Plate And Angled Plate Portion Stud Flanges Nested In Said Slots And Contacting The Thickened Base Portion, Wherein Said Elongate Plate Is Disposed Between Flanges Of The Channels And Flanges Of The Studs Said Clips Comprising Acrylonitrile-Butadiene-Styrene And Wherein Said Clip Devices Prevent Squeaking And Clicking Upon Subjection Of Said Partition Wall Construction To Horizontal Racking Forces Tending To Force The Partition Wall Construction Into A Generally Parallelogram-Shape |
| 4,376,674 | Method Of Manufacturing Flame And Abuse Resistant Fiber Panel And Products Resulting | 3/15/1983 | Ali Mohammad H | A Method Of Manufacturing Flame And Abuse Resistant Fiber Panels By Treating The Surface Of Water-Laid Fiber Mats With An Aqueous Slurry Of Sodium Silicate And Calcium Carbonate And Drying The Mats Is Disclosed The Slurry Is Applied To The Wet Mat After Wet Pressing And Before Drying While The Mat Still Contains Considerable Moisture Content The Resulting Products Present A Hard, Abuse Resistant, Flame Resistant And Water Resistant Surface |
| 4,377,059 | Concealed Ceiling System With Accessible Ceiling Panels | 3/22/1983 | Kuhr Albert F | A Suspended Ceiling System Comprising A Plurality Of Inverted-T Runners Kerfed Edge Ceiling Tile Supported By Runners And Concealing The Bottom Of The Runners At Least One Ceiling Tile Having A Central Portion Removable Therefrom By Being Separable Along A Substantially Vertical Fine Cut Made By High Pressure Fluid Jet Cutting |
| 4,381,578 | Curtain Rod Having Tension Mounting Mechanism | 5/3/1983 | Glejf, Robert G. | A Flexible Door Or Curtain Support Comprising An Elongate Member Having A Track For Supporting The Door Or Curtain, And Apparatus For Providing Tension Between The Elongate Member And A Supporting Wall Comprising A Pad Or Wall Member For Engaging The Wall, A Pressure Plate Engaging The End Of The Elongate Member, And Wedge Or A Cam Mechanism Cooperating With The Pressure Plate And The Pad Or Wall Member, And A Mechanism For Moving The Wedge Member To Provide Longitudinal Tension Between The Elongate Member And The Wall |
| 4,382,809 | Method And Apparatus For The Production Of Mineral Fiber Felts Having Fiber-Leveling Device | 5/10/1983 | Porter William F; Schwab Shirley J; Schneider Karl E | An Apparatus For The Production Of Mineral Fiber Or Wool Felts, Blankets Or Batts Having Uniform Thickness And Density, Comprising Means For Fiberizing The Mineral Composition, A Housing Defining A Chamber Into Which The Fibers Are Introduced, A Foraminous Belt Upon Which The Fibers Are Deposited, A Rotating Brush For Sweeping Or Throwing Back Excess Fibers, Thereby Leaving A Uniform Layer Of Uncompressed Fibers On The Felt, And A Roller For Compressing The Layer Of Fibers Into A Felt The Rotary Brush Removes The Excess Fibers And Cooperates To Provide A Felt Which Is Of Uniform Density And Thickness |
| 4,385,476 | Web Stiffener For Light-Gauge Metal Framing Members | 5/31/1983 | Slager, Richard E. | A Web Stiffener For Use With A Channel-Shaped Framing Member To Inhibit Web Crippling Is Disclosed Wherein Said Web Stiffener Comprises Two Opposing Integral Compression Members Each Having A J-Shaped Cross-Sectional Configurational Whereby Said Compression Members Are Adapted For Nested Insertion Opposingly Faced, Having Longer Flanges Thereof Overlapping Within A Channel Of A Framing Member, And Said Members Capable Of Being Positioned At A Random Location Along A Framing Member By Rotation Into Position Facilitated By Inclined Edges Of Said Longer Flanges, Whereby Opposite Bearing Edges Of Said Compression Members Are Adapted To Contact Opposite Arms Of A Channel-Shaped Framing Member For Web Stiffening Thereof |
| 4,386,180 | Water-Based Stain | 5/31/1983 | Lat Geronimo E; Sheppard Thomas F | A Water-Based Stain Having A Working Time Of From About 1 To About 3 Minutes And A Tack-Free Drying Time Of From About 10 To About 15 Minutes At 160 DEG F Comprises An Acrylic Latex, A Drying Oil, Ester Gum, A Glycol, A Hydrocarbonaceous Solvent, And Pigment |
| 4,388,292 | Process For Reducing Radioactive Contamination In Phosphogypsum | 6/14/1983 | Palmer, Jay W. ; Gaynor, John C. | A Process Of Two Crystallization Stages For Reducing Radioactive Contamination Of Phosphogypsum Is Disclosed In The Process Anhydrite Crystals Are Obtained Through Dehydration Of The Radiation Containing Phosphogypsum In Strong Sulfuric Acid; A Portion Of The Anhydrite Crystals Containing The Radioactive Contamination Is Converted To Substantially Radiation Free Gypsum By Crystallizing Out On A Large Solids Concentration Of Radiation Free Gypsum Seed Crystals; And Coarse Radiation Free Gypsum Crystals Are Separated From Small Anhydrite Crystal Relics Containing Substantially All Of The Radioactive Contamination |
| 4,388,378 | Thermoplastic Hardboard From Acetylated Mat | 6/14/1983 | House Cynthia B; Leichti Robert J | A Wet-Felted Mat Of Wood Fibers Is Acetylated By Coating The Mat With A Quantity Of Acetic Anhydride Ranging From 5 To 70% By Volume Of The Mat And Heating The Mat At A Temperature Of From 150 DEG To 300 DEG F While Confining Substantially All Of The Acetic Anhydride Within The Mat For About 20 To 120 Minutes The Acetylated Mat Is Pressed Into Hardboard Which May Be Bent Into A Variety Of Loops, Spirals, Helices, And Other Curvilinear Shapes To Make Articles Of Furniture, Protective Packaging Products And The Like |
| 4,388,778 | Enclosure For Bathtub Or Shower Having Sliding Doors | 6/21/1983 | Brooke Michael E | An Enclosure For A Bathtub Or Shower Having A Sliding Door Assembly And Comprising A Header Or Supporting Assembly Including A Front Header And A Side Header Operatively Connected Thereto, Each Header Having A Pair Of Tracks, One For Each Door, The Tracks Of The Front Header Communicating With The Respective Tracks Of The Side Header At A Bevel Joint, A Pair Of Doors Each Having Hanger Assemblies Mounted On Their Upper Edge, Each Hanger Assembly Having A Glider Member At Its End Engaged In One Set Of Said Tracks, Said Doors Being Adapted To Be Alternatively Positioned In Front Of The Enclosure Or To Be Slid To A Storage Position Along A Side Wall Of The Enclosure |
| 4,397,127 | Extendable Stud For Partition Walls Or The Like | 8/9/1983 | Mieyal David F | A Metal Stud Assembly Is Disclosed For Use In Either Drywall Construction Or As Intermediate Studs In Demountable Walls. The Stud Assembly Includes A U-Shaped Stud Member And A U-Shaped Stud Extension Which Telescopes Into One End Of The Stud Member With A Resilient-Type Of Interference Fit Which Produces A Controlled Resistance To Relative Axial Movement And Eliminates Possible Looseness. The Stud Extension Is Provided With Angulated Tabs Which Snap Into A Channel-Shaped Ceiling Track To Lock The Stud Extension Therein. The Lower End Of The Stud Fits Into A Channel-Shaped Floor Track To Secure The Lower End Of The Stud Assembly In Place. The Stud Assembly Is Sufficiently Flexible To Allow The Lower End To Be Twisted Through About 90 DEG To Position The Narrow Dimension Thereof Crosswise With Respect To The Floor Track For Easy Insertion. After Insertion, The Stud Assembly Is Returned To The Untwisted Position To Complete The Installation. |
| 4,397,623 | Apparatus For The Production Of Mineral Fibers By Means Of Rotating Discs | 8/9/1983 | Porter, William F. ; Janninck, Donald R. | An Apparatus For Producing Mineral Fibers Comprising A Container Having Means For Heating The Mineral Material To Form A Molten Pool Therein, A Plurality Of Discs Having A Portion Thereof Immersed In The Molten Pool, And Means For Rotating The Discs In The Same Angular Direction At High Speed In A Preferred Embodiment Means Are Provided For Moving A Gas Such As Air Or Steam Across The Edges Of The Rotating Discs To Assist In The Attenuation Of The Fibers |
| 4,402,922 | Process For Rapid Conversion Of Fluoroanhydrite To Gypsum | 9/6/1983 | Gaynor, John C. ; Palmer, Jay W. | A Process For Making An Industrially Usable Gypsum From Fluoroanhydrite In Which Fluoroanhydrite Is Contacted With A Fluid Reaction Medium Slurry Containing Soluble Sulfate Ions And A Substantial Proportion Of Small Gypsum Seed Crystals To Rapidly Hydrate A Large Proportion Of The Fluoroanhydrite To A Coarser, Substantially Pure Gypsum The Slurry Is Clarified To Separate Coarse Purified Gypsum Reaction Product, And The Reaction Medium Is Reconstituted And Recycled Containing Gypsum Crystals Less Than The Desired Reaction Product Size And Constituting About 50-90% Of The Total Solids Of The Reconstituted Fluid Reaction Medium |
| 4,403,006 | Sag-Resistant Gypsum Board Containing Coal Fly Ash And Method For Making Same | 9/6/1983 | Bruce Robert B; Kuntze Richard A | A Gypsum Board Consisting Essentially Of A Monolithic Cellular Core Of Set Gypsum And A Fiberous Cover Sheet Encasement Provided With Improved Properties By The Gypsum Core Having Incorporated Therein Coal Fly Ash In An Amount Of About 1-20% By Weight Of Stucco In The Gypsum Slurry Used In Forming The Board And Method Of Producing The Board Are Disclosed |
| 4,408,428 | Suspended Panel Ceiling Having Impact Absorbent Panel Retaining Clip Assemblies | 10/11/1983 | Brooke; Michael E.; Wendt; Alan C. | Panels Resting In A Suspended Grid Are Rendered Abuse-Resistant By Mounting Two-Piece Retaining Clips Atop The Runners In The Grid The Clip Assemblies Comprise A Torsional/Flexural Spring Mated With A Clinch Fastener The Spring Is A Piece Of Bent Music Wire Having A Central U-Shaped Segment, Two Opposing Legs Angling Outwardly And Downwardly From The Upright Arms Of The U To A Level Below The Cross Member Of The U The Clinch Fastener Is A Piece Of Flat Spring Steel Bent Into The Shape Of A U, The Bight Of The U Being A Channel Connecting Two Straps, Each Of Which Has A Keeper At Its Distal End Which Turns Inward And Upward Into The Space Between The Two Straps The Cross Member Of The Spring Fits Into The Channel Of The Clinch Fastener And The Unit Is Snapped Onto The Bead Atop A Grid Runner So That The Cross Member Is Interposed Between The Bead And The Channel The Retaining Clip Assemblies May Be Installed Before Or After The Panels Are Installed In The Grid Or The Panels And Clip Assemblies May Be Installed Sequentially The Legs Of The Spring Bear Down On The Panels And The Spring Absorbs The Impact Of A Ball Or Other Object Thrown Upward At The Ceiling |
| 4,409,276 | Metal Article Having Three-Dimensional Wood Grain And Stainable Coating | 10/11/1983 | Martinelli Lawrence R; Lat Geronimo E | A Metal Article Is Made To Look Like Wood By Impressing A Three-Dimensional Wood Grain Pattern In Its Surface, Coating The Pattern With A Translucent Film, And Staining The Film The Stainable Film Is An Acrylic Resin Filled With An Extender Pigment Whose Mean Particle Size Is From About 5 To About 7 Microns |
| 4,411,738 | Press Cycle Reduction For Wet Pressed Hardboard | 10/25/1983 | Wittrup, Bruce A. ; White, Kendall D. | The Production Of Hardboard By The Wet Press Process Is Speeded Up By The Incorporation Of Finely Divided Fibers In An Aqueous Slurry Of Otherwise Fast Draining Wood Fibers And A Thermosetting Binder So That A Barrier Of Said Fine Fibers Is Formed During Hot Pressing Of The Mat And Steam Pressure Is Built Up In The Mat The High Pressure Permits A Curing Temperature Of From About 300degree F To About 350degree F In The Core Of The Mat And A Concomitant Acceleration Of The Cure Of The Binder |
| 4,417,883 | Apparatus For Creasing Paper Used In The Production Of Gypsum Wallboard | 11/29/1983 | Granger, Robert L. ; Alexander, Alva P. | An Apparatus For Applying Parallel Spaced-Apart Creases On Paper To Be Used As Cover Sheets In The Manufacture Of Gypsum Board, The Parallel Spaced-Apart Creases Forming The Corners Of The Wallboard And The Distance Between Creases Defining The Thickness Thereof, The Apparatus Being Adjustable To Control The Depth Of The Creases Applied So That Substantially No Paper Material Is Removed During The Creasing Process, And The Creases Applied Are Of Sufficient Depth To Permit Sharp Corners To Be Readily Formed |
| 4,418,101 | Method Of Making Thermoplastic Hardboard From Acetylated Mat | 11/29/1983 | House Cynthia B; Leichti Robert J | A Wet-Felted Mat Of Wood Fibers Is Acetylated By Coating The Mat With A Quantity Of Acetic Anhydride Ranging From 5 To 70% By Volume Of The Mat And Heating The Mat At A Temperature Of From 150 DEG To 300 DEG F While Confining Substantially All Of The Acetic Anhydride Within The Mat For About 20 To 120 Minutes The Acetylated Mat Is Pressed Into Hardboard Which May Be Bent Into A Variety Of Loops, Spirals, Helices, And Other Curvilinear Shapes To Make Articles Of Furniture, Protective Packaging Products And The Like |
| 4,419,853 | Method For Treating The Surface Of A Metal To Improve The Adhesion Of A Cementitious Joint Compound Thereto | 12/13/1983 | Failmezger Friedrich; Lat Geronimo E | A Composition And Method For Treating The Surface Of A Metal Structure Adapted To Be Used For Such Purposes As A Cornerbead And To Have A Cementitious Material Such As A Joint Compound Applied To The Surface Thereto, The Compound And Composition And Method Resulting In The Improvement Of The Adhesion Between The Surface Of The Metal Structure And The Cementitious Compound Applied Thereto, Which Comprises Preparing A Composition Such As That Comprising A Forming Lubricant For Processing The Metal Structure And A Minor Proportion Of A Polyfunctional Aziridine Incorporated Therein The Presence Of The Aziridine Enhances The Adhesion Properties Between The Surface Of The Metal And The Cementitious Compound Even When Less Highly Processed Metals And Less Expensive Compounds Are Utilized |
| 4,421,704 | Method Of Treatment For Plaster Articles To Improve Wear And Water Resistance And Article Of Manufacture | 12/20/1983 | Reily, William S. | A Method Of Surface Treatment For Plaster Articles To Improve Wear And Water Resistance Is Disclosed The Method Includes The Step Of Forming The Article, Allowing The Article To Set, Drying To Remove Excess Water, Applying A Coat Of Substantially Molten Candelilla Wax Onto An Exterior Surface Of Said Article, Maintaining Said Wax At A Temperature Of No Less Than 155degree F (68degree C) For Sufficient Period Of Time To Allow Said Wax To Substantially Fill Exterior Pores And Irregularities, And Cooling Said Article To Solidify The Wax Also Disclosed Is A Wear Resistant And Water Repellent Plaster Article Comprising A Formed Plaster Article Having An Exterior Surface Portion Thereof Coated With A Thin Layer Of Candelilla Wax, Said Coated Surface Portion Providing A Substantially Water Impregnable Barrier And Providing Enhanced Wear Resistance |
| 4,421,731 | Process For Purifying Phosphogypsum | 12/20/1983 | Palmer, Jay W. ; Gaynor, John C. | A Process For Reducing Radioactive Contamination Of Phosphogypsum Phosphogypsum Containing Radioactive Material Is Calcined To Form Hemihydrate Crystals Carrying The Radioactive Contaminants, And A Portion Of The Crystals Is Converted To Substantially Radiation-Free Gypsum Crystals Which Are Readily Separated From The Hemihydrate Crystal Relics Containing Substantially All Of The Radioactive Contamination |
| 4,422,266 | Building Panel | 12/27/1983 | D. Slocum, J. Eaton | Building Panel |
| 4,424,148 | Process For Preparing Wastes For Non-Pollutant Disposal | 1/3/1984 | Rosenstiel Terry L; Debus Allen A G | A Method Of Disposing Of Wastes, Especially Wastes Containing Radioactive Or Toxic Substances, Such As The Wastes Generated In The Water Associated With Nuclear Power Production Is Described A Feature Of The Invention Is To Incorporate The Waste Into A Hardenable Setting Mass When Mixed With Water, Comprising Calcium Sulfate Hemihydrate, Water Soluble Melamine Formaldehyde Resin Which When Cured Is Hydrophobic, And A Cross-Linking Agent For Curing The Resin |
| 4,424,196 | Phosphohemihydrate Process For Purification Of Gypsum | 1/3/1984 | Palmer, Jay W. ; Gaynor, John C. | A Wet Process For Producing Phosphoric Acid And Phosphohemihydrate By Acidulation Of Phosphate Rock A Strong Phosphoric Acid Is Obtained With Concomitant Production Of An Improved Calcium Sulfate That Is Extremely Low In Radioactivity By Operation In Region II For Shorter Time So As To Produce Small Sized Hemihydrate Particles, Then Hydration Of A Substantial Proportion But Less Than All Of The Hemihydrate To Coarse Gypsum Substantially Free Of Radioactivity In A Dilute Acidic Aqueous Slurry At A Temperature And Psub2 Osub5 Concentration Selected So As To Be Within Region I Of FIG 1 And Having A Substantial Weight Proportion Of Coarser Gypsum Particles That Are Substantially Free Of Radioactivity |
| 4,424,197 | Gas Desulfurization | 1/3/1984 | Powell, Byron E. ; Bakhshi, Virendar S. ; Randolph, Donald A. | A Process For Adsorbing Sulfur Dioxide From A Gas Comprising Contacting A Gas Containing Sosub2, Such As A Flue Gas, With About Stoichiometric Amounts Of A Specially Prepared Calcium Oxide So That Substantially All Of The Sulfur Dioxide Content Is Reacted Throughout The Calcium Oxide Particle To Form A Calcium Sulfate Reaction Product The Useful Calcium Oxide Particles Comprise A Highly Voided Skeletal Structure Of Very Large Surface Area And Large Pore Volume With Numerous Macro Pores Such Particles Are Obtained By Flash Calcining Sand-Size Grains Of Calcium Carbonate, Such As Aragonite, Calcite Or Dolomite |
| 4,426,824 | Floor Panel And Method Of Making Same | 1/24/1984 | Swensen Eugene L | An Elevated Floor Panel Is Disclosed Formed Of A Sheet Metal Upper Surface Member And A Sheet Metal Lower Support Member The Lower Support Member Is Provided With A Plurality Of Apertures Arranged In Perpendicular Rows Across The Panel Integral Legs Formed Of Material Displaced From The Apertures Are Symmetrically Arranged Around Each Aperture And Extend Laterally To The Upper Surface Member Each Leg Is Provided With A Foot Portion Welded To The Under Surface Of The Surface Member The Edges Of The Lower Support Member Are Bent Laterally To Provide Sidewalls Extending To The Upper Surface Member And Terminating In Flanges Welded To The Upper Surface Member The Panel Structure Permits The Panel To Be Supported At Its Corners And To Sustain Substantial Loads With Small Load-Induced Deflections |
| 4,430,367 | Translucent Stainable Coating | 2/7/1984 | Lat; Geronimo E. | Substrates Such As Metal, Plastic, Hardboard And Plywood May Be Coated With A Translucent Film Of A Filled Acrylic Resin So That A Decorative Stain May Be Applied The Filler In The Acrylic Resin Is An Extender Pigment Having A Mean Particle Size Of From About 5 To About 7 Microns |
| 4,434,900 | Free Standing Article Display Apparatus | 3/6/1984 | Cook, Melvin W. | A Free Standing Article Display Apparatus Includes Detachable Panel And Post Combinations Which May Be Rapidly Assembled And Disassembled To Provide A Wide Variety Of Forms And Configurations For Accommodating And Matching The Area And Motif Of A Display Floor Or Sales Area |
| 4,435,183 | Process For Rapid Dewatering And Drying Of Calcium Sulfate Hemihydrate | 3/6/1984 | Baehr, Donald O. | A Process For Rapidly Dewatering And Drying Calcium Sulfate Hemihydrate In A Centrifuging And Flash Drying Operation By Ejecting The Wet Solids From The Centrifuge Bowl Directly Into The Flash Dryer's High Velocity, High Volume, Heated Air Stream |
| 4,443,991 | Demountable Partition Structure | 4/24/1984 | D. Mieyal | Demountable Partition Structure |
| 4,444,524 | Mounting Clip For Tongue And Groove Panels | 4/24/1984 | Cook Melvin W; Campbell Rodney S | A New And Improved Mounting Clip For Tongue And Groove Panels Includes A Body Of Thin Flat Sheet Metal Having A Pair Of Deflectable Wings On Opposite Sides Adapted To Be Folded Around Opposite Longitudinal Edges Of A Flange On An Elongated Support Member For The Panel The Clip Includes A Panel Support Element Between The Wings Having A Tongue Spaced From The Body And Adapted To Engage A Groove In The Edge Of The Panel For Securing The Panel In Place Against The Support Member Tongue And Groove Panels Are Installed Transversely Across Elongated Support Members By Mounting The Clips On The Supports And Folding The Wings Over Against The Flange With The Tongue Of The Clip Engaged In The Groove In The Edge Of The Adjacent Panels The Tongue Of The Succeeding Panel Is Then Inserted Into The Groove Of The Panel Already In Place And Another Clip Installed To Support The Succeeding Panel, Etc |
| 4,448,639 | Mineral Fiber-Containing Paper For The Production Of Gypsum Wallboard Product Prepared Therewith | 5/15/1984 | Long, William J. | A Paper Cover Sheet Material For Use In The Production Of Gypsum Wallboard, The Paper Cover Sheet Material Having Excellent Drainage, Porosity And Drying Properties, And A Wallboard Product Produced Therefrom, The Paper Cover Sheet Material Being Produced From Fibers Comprising A Major Proportion Of Cellulose Fibers And A Minor Proportion Of Mineral Fibers, The Paper Composition Additionally Comprising A Cellulose Gel, A Latex Binder And A Flocculating Agent, Thereby Enabling The Mineral Fibers To Be Dispersed In An Aqueous Slurry Without Materially Fracturing The Fibers, And Retaining The Shot Present In The Mineral Fibers Without Permitting The Shot To Be Released And Thereby To Contaminate The Papermaking Equipment The Excellent Porosity, Drying Properties And Drainage Of The Paper Permit The Gypsum Wallboard Formed With The Paper To Be Readily Set And Dried With Reduced Heat Energy Requirements |
| 4,449,338 | Temporary Restraining Clamp For Wallboard | 5/22/1984 | Reicherts, James E. | An Integral Clamp And Screw In The Shape Of An L Has A Panel Supporting Leg And A Leg From Which A Screw Projects Through And Beyond The Panel Supporting Leg The Clamp Is Used To Support A Building Panel While Aligning Said Panel Over The Framing Members To Which It Is To Be Attached And While Fastening The Panel To Said Members The Screw Is Turned Into A Framing Member, Such As A Ceiling Joist Or Wall Stud, By Turning The Clamp By Hand Until The Panel Support Leg Is Close Enough To Hold The Panel Loosely Against The Member, Putting The Panel Into Place And Then Turning The Clamp Further Until The Supporting Leg Holds The Panel Tightly Against The Framing Member |
| 4,450,022 | Method And Apparatus For Making Reinforced Cement Board | 5/22/1984 | Galer, Richard E. | A Network Of Reinforcing Fibers Is Pressed Against The Surface Of An Underlying Carrier Sheet By The Weight Of A Concrete Mix A Vertical Gap Between The Sheet And The Network Is Created So That The Concrete Mix May Penetrate The Voids Of The Network And Spread Out On The Underlying Sheet To Embed The Fibers |
| 4,452,770 | Phosphoanhydrite Process | 6/5/1984 | Palmer, Jay W. ; Gaynor, John C. | A Wet Process For Producing Phosphoric Acid And Phosphoanhydrite By Acidulation Of Phosphate Rock With A Phosphoric Acid/Sulfuric Acid Mixture Containing A Very High Recycle Content Of Small Sized Anhydrite Seed Crystals A Strong Phosphoric Acid Is Obtained Having A Concentration Of At Least About 35% Psub2 Osub5 Further, The Phosphoanhydrite May Be Readily Converted To An Industrially Usable Gypsum Product |
| 4,453,346 | Adjustable Wall Jamb For Shower Door | 6/12/1984 | Powell, David W. ; Hodges, James W. | An Adjustable Wall Jamb Assembly For A Shower Door Comprising A Fixed Wall Jamb Member Adapted To Be Affixed To A Wall, An Adjustable Block Assembly Comprising A Block Adapted To Be Affixed To The Fixed Wall Jamb And Having A Threaded Opening, And An Adjustment Screw Having An External Thread Complementary With That Of The Adjustment Block, The Adjustment Screw Having An Axial Aperture And Engaging Means At One End For Being Engaged And Rotated Within The Adjustment Block, An Adjustable Jamb Member Adapted To Slide Over The Fixed Jamb Member And To Engage The End Of The Adjustment Screw, And A Screw Disposed Through An Aperture In The Adjustable Jamb Member, Extending Through The Axial Opening Of The Adjustable Screw And Being Adapted To Enter The Wall On Which The Fixed Jamb Member Is Mounted |
| 4,454,267 | Lightweight Joint Compound | 6/12/1984 | Williams, Terrance L. | A Lightweight Joint Compound For Use In Finishing Joints Between Gypsum Wallboards, Comprising A Filler, A Binder, A Specially Treated Expanded Perlite, A Non-Leveling Agent, And A Thickener |
| 4,457,781 | Method For Solidifying Waste Slime Suspensions | 7/3/1984 | Palmer Jay W; Gaynor John C | Solidification Of Colloidal Argillaceous Matter In Essentially Non-Settling, Aqueous Slime Media Into A Solid Stable Matrix Is Accomplished By Mixing Such Slime With A Hydratable Calcium Sulfate And Hydrating To Form An Interlocking Strength Bearing Matrix The Method Is Particularly Useful For Coalescing Phosphatic Clay Slimes With Hydratable Calcium Sulfate Prepared From The Co-Produced Waste Phosphogypsum |
| 4,463,039 | Sprayable Acoustical Composition | 7/31/1984 | O'Connell Daniel D; Broz Thomas A | A Composition Comprising Mineral Wool And Polyolefin Fibers Is Adaptable For Spraying Onto A Ceiling Or Wall Or The Like To Form A Textured Acoustical Coating The Fibers Are Mixed With A Binder, Water And Foaming Agent To Form A Foamy Composition The Composition Is Confined Under Pressure And Released Through A Nozzle To Form A Steam Compressed Gas Is Introduced Into The Stream To Atomize The Composition |
| 4,463,535 | Glass Stop Assembly | 8/7/1984 | Wendt, Alan C. | A Demountable Glass Stop Assembly For Use In Non-Bearing Partition Wall Glazing Systems, Comprising In Combination A Pair Of Elongate Members Preferably Formed By Extrusion, Each Of The Elongate Members Being Substantially U-Shaped In Cross-Section, A First Elongate Member Having A Laterally Extending Planar Arm Terminating In A Hook At The End Thereof, The Second Elongate Member Having A Detent Hook At The End Of A Leg Thereof Complementary With And Adapted To Engage The Hook Of The First Elongate Member, And Having A Protuberance Extending From A Portion Thereof, And A Glazing Spline Of An Elastomeric Material Having A Notch Provided Therein Engaging The Protuberance Of The Second Elongate Member, And Having Means For Engaging A Glass Pane Placed Between The First And Second Elongate Members, Thereby Providing A Resilient Biasing Force Urging The Second Elongate Member Away From The First Elongate Member And Thereby Maintaining The Hook Of The First Elongate Member Engaged With The Detent Hook Of The Second Elongate Member |
| 4,464,074 | Connector And Web Stiffener | 8/7/1984 | Green, William J. ; Semmerling, Ralph P. | A Connector For The Interconnection In Generally Perpendicular Array Of Generally C-Shaped Elongate Structural Members Having A Pair Of Flanges Integrally And Perpendicularly Connected With The Web Portion Thereof In Which Said Flanges Each Include A Flange Return Edge Which Extends Inwardly Of The Generally C-Shaped Channel, Which Connector, Upon The Assembly Of Said Interconnection, Provides Strengthening Of The Webs Of Each Said C-Shaped Structural Member, And A Floor Assembly Comprising Said Connector And Said Generally C-Shaped Elongate Structural Members |
| 4,464,875 | Wall Panel Bracing Rib And Wall Constructed Therewith | 8/14/1984 | Wendt, Alan C. ; Krakowski, David | The Kerfed Edges Of Wall Panels Attached To H-Studs By Engagement Of The Stud Flanges Within The Kerfs Are Protected Against Breakage By Panel Bracing Ribs Installed Within The Wall Cavity By Insertion Of The Ribs Into Apertures Located In The Webs Of The Studs Said Ribs Are Bowed Wafers Of Plastic Or Other Flexible Material Having A Notched Tab At Each End Insertion Of The Vertically Oriented Tabs Into Said Apertures And Rotation Of The Bow To Orient Said Tabs Horizontally Secures The Bracing Rib To The Stud |
| 4,469,656 | Method For Forming Embossed Acoustical Tile | 9/4/1984 | Ishii, Yasuo | A Method For Making Acoustical Tile Having A Pattern Of Raised Portions And Portions In Relief On The Tile Surface Is Provided By Contacting Deformable, Acoustical Tile Fiber Composition Pulp With A Hollow Embossing Roll Containing The Pattern In Reverse And Interstices Communicating From The Surface Of The Roll Into The Hollow Interior Of The Roll; Pressing The Roll Against The Deformable Pulp With Sufficient Force As To Dispel The Pulp; Vent Air, Between The Roll And The Pulp Surface, Through The Roll And Produce The Reversed Pattern Of The Roll Upon The Pulp Surface; And Releasing The Pulp From The Surface Of The Roll By Rotation Of The Roll |
| 4,470,239 | Suspended Ceiling Grid System | 9/11/1984 | Sauer Gale E | A Suspended Ceiling Grid System Formed Of Main Runners (10) And Cross Runners (40) Disposed At Right Angles To The Main Runners To Define Grid Openings For The Reception Of Ceiling Tiles (T). Each Of The Runners (10, 40) Includes A Bulb (12, 42) A Pair Of Webs (14, 44) Depending From The Bulb To Define A Recess Therebetween, And A Pair Of Tile Supporting Flanges (16, 46) Extending In Opposite Directions From The Lower Edges Of The Webs. The Tiles (T) When Assembled Onto The Flanges (16, 46) Of The Main And Cross Runners (10, 40) Resiliently Displace The Webs (14, 44) From Their Normal Unstressed Positions To Cause The Webs To Center The Tile. Simulation Means (76) Is Carried By The Runners In Underlying Relationship At The Intersection Of The Main And Cross Runners (10, 40) To Simulate A Continuous Recess At The Intersection. |
| 4,470,877 | Paper Having Calcium Sulfate Mineral Filler For Use In The Production Of Gypsum Wallboard | 9/11/1984 | Johnstone Norman E; Kehoe John R | A Composite Paper Particularly Adapted For Use As Cover Sheets In The Production Of Gypsum Wallboard, The Paper Being Sufficiently Porous To Permit Better Drainage And More Rapid Drying In The Production Of The Paper, And When Applied To The Surfaces Of A Gypsum Slurry For Forming Wallboard, Permits Less Heat To Be Utilized In The Wallboard Conversion, Thereby Saving Energy In The Board Production Required For Drying The Board The Paper Comprises In Weight Percent: (A) Cellulosic Fibers In An Amount Of From About 65% To About 90% And Preferably Having A Fiber Freeness Of From About 300 Ml To About 550 Ml Canadian Standard Freeness, (B) Calcium Sulfate As A Filler In An Amount Of From About 10% To About 35%, (C) A Binder In An Amount From About 1% To About 31/2%, (D) A Flocculent In An Amount Of From About 01% To About 02%, (E) A Buffering Agent In An Amount From About 025% To About 10%, (F) A Neutral Sizing Agent In An Effective Amount To Prevent Water Penetration, (G) An Anionic Polymer In An Amount Suitable For Retaining Said Filler In Said Paper, And (H) A Cationic Starch When A Succinct Anhydride Is Used As The Neutral Sizing Agent In A Preferred Embodiment, After The Paper Is Treated With A Neutral Internal Sizing Agent During Its Formation, It Is Subsequently Treated With A Surface Sizing Agent After Formation Of The Paper, In Order To Provide Certain Properties Including Better Adhesion To The Gypsum Core When Used To Make Gypsum Wallboard |
| 4,474,720 | Method Of Making Pattern Matrix Having Uniform Backer Thickness | 10/2/1984 | Izard; David G. | A Tough, Flexible, Sheet-Like Matrix For A Bas-Relief Pattern Is Made By Casting A Reinforced Resin On A Mold Of The Pattern And Submerging A Perforated Plate In The Liquid Resin So That The Plate Is Parallel To A Substantially Flat Plane Generated By The Lowest Points Of The Pattern The Matrix, Exclusive Of The Peaks And Valleys Of The Pattern, Has A Uniform Thickness And Has A Multitude Of Studs Integral With And Dependent From The Sheet A Porous Matrix Is Useful For The Wet-End Texturing Of Fiberboard At The Final Suction Press Roll Of A Fourdrinier Fiberboard Machine |
| 4,484,428 | Suspended Ceiling Grid System | 11/27/1984 | G. Sauer | Suspended Ceiling Grid System |
| 4,485,605 | Suspension Ceiling Grid With Removable Grid Members | 12/4/1984 | P. Lalonde | Suspension Ceiling Grid With Removable Grid Members |
| 4,487,291 | Sound Attenuating Partition | 12/11/1984 | Walker, Keith W. | The Sound Attenuation Of Building Partitions Having A Cavity Between Opposing Panels Thereof Is Enhanced By A Bowed Blanket Of Mineral Fibers In Said Cavity The Apex Of The Bow Is In Compressive Contact With One Of The Panels So That Sound Waves Passing Into A Panel Are Dampened Before They Reach The Panel On The Opposite Side Of The Partition The Bowed Blanket Is Particularly Effective In The Frequency Range Wherein The Coincidence Effect Is Troublesome |
| 4,488,909 | Non-Expansive, Rapid Setting Cement | 12/18/1984 | Galer Richard E; Webb Paul C | An Ettringite-Producing Hydraulic Cement Especially Adapted To The High Speed Production Of Carbon Dioxide Resistant Cement Board Produces Essentially All Of Its Potential Ettringite Within About 20 Minutes After It Is Mixed With Water The Cement Is Non-Expansive And Sets Within About 25 Minutes At A Temperature Of From About 65 DEG F To About 150 DEG F |
| 4,488,917 | Method For Making Cement Board | 12/18/1984 | Porter, Michael J. ; Galer, Richard E. | Mortar Is Deflected Continuously Onto A Moving Carrier Sheet From A Distributor Belt Which Is Moving Transversely To The Carrier Sheet By A Plow Which Shuttles Across The Length Of The Distributor Belt An Uninterrupted Flow Of Mortar Is Spread Across The Sheet The Layer Of Mortar On The Carrier Sheet Is Slightly Undulatory In The Machine Direction But A Lateral Cross Section Has A Substantially Uniform Thickness So That A Flat Broad Ribbon Of Mortar Emerges From Under A Screed Downstream From The Shuttle Plow |
| 4,496,515 | Method For Cutting Gypsum Board With High Velocity Fluid Cutting Jet | 1/29/1985 | Ptasienski, Mitchell P. ; Mustoe, Robert M. ; Zajonc, Fred H. | Gypsum Board Is Formed Into A Continuous Sheet By Depositing An Aqueous Slurry Of Calcium Sulfate Hemihydrate, Including Conventional Additives, Between Two Paper Cover Sheets On A Moving Conveyor After The Slurry Has Reached The Initial Stiffening Degree Of Set And Before The Slurry Has Reached A Final Or Temperature Rise Set, And In The Preferred Form Before It Has Reached A Vicat Set, The Moving Sheet Is Transversely Cut Into Individual Boards By Means Of A High Pressure And Velocity Fluid Cutting Jet Since The Cutting May Be Carried Out Before The Vicat Set Is Reached, The Board Line May Be Operated At An Increased Velocity, Thereby Enabling A Particular Board Line Materially To Increase Its Production Within A Given Period Of Time And To Use Conveying Equipment Which Is Shorter In Length |
| 4,497,150 | Drive-In Trim System For Intersecting Hollow Wall Partitions | 2/5/1985 | Wendt, Alan C. ; Krakowski, David | A Two Piece System For Driving A Piece Of Trim Into Place At The Intersection Of Paneled Hollow Wall Partitions Comprises A Retainer Clip And The Trim Piece The Retainer Clip, Made Of Spring Steel, Has A First Leg Which Is Secured To The Partition And A Detent Leg Which Slips Between The Edge Of Said Partition And The Face Of An Intersecting Partition A Barbed Leg Of An L-Shaped Trim Piece Is Driven Between Said Face And The Detent Leg So That The Lip Of The Barb Engages The Detent Of The Retainer Clip |
| 4,499,697 | Suspended Ceiling With Removable Tee Sections | 2/19/1985 | P. Lalonde | Suspended Ceiling With Removable Tee Sections |
| 4,504,335 | Method For Making Reinforced Cement Board | 3/12/1985 | Galer, Richard E. | A Cement Board Of Homogeneous Composition From Face To Face And Having A Substantially Uniform Thickness Is Made Continuously By Distributing A Sole Cementitious Composition On A Moving Carrier Sheet And Smoothing The Surface By Rotating A Cylindrical Roller In A Direction Counter To The Movement Of The Carrier Sheet An Upper Reinforcing Network Is Submerged Under The Surface By Feeding It Under The Counter Rotating Roller |
| 4,504,555 | Composition And Process For Forming Inorganic Resins And Resulting Product | 3/12/1985 | Prior, William L. ; Sargeant, William C. | Compositions And Processes For Forming Inorganic Resins, Including Articles Of Manufacture Incorporating These Resins Are Disclosed The Inorganic Resins Are Characterized By Their Strength, Nonflammability, Dimensional Stability, Resistance To Organic And Inorganic Chemicals, To Heat And To Abrasion And Their Adaptability To Being Formed Into Non-Cellular Or Cellular Forms The Resins Are Formed By Reacting A Liquid Component A Containing A Mono Aluminum Or Mono Magnesium Phosphate And A Liquid Component B Containing A Magnesium Oxide And/Or A Wollastonite And A Dispersing Agent Various Fillers May Be Incorporated And A Blowing Agent May Be Added To Form A Cellular Resin |
| 4,504,555 | Composition And Process For Forming Inorganic Resins And Resulting Product | 3/12/1985 | Prior, William L. ; Sargeant, William C. | Compositions And Processes For Forming Inorganic Resins, Including Articles Of Manufacture Incorporating These Resins Are Disclosed. The Inorganic Resins Are Characterized By Their Strength, Nonflammability, Dimensional Stability, Resistance To Organic And Inorganic Chemicals, To Heat And To Abrasion And Their Adaptability To Being Formed Into Non-Cellular Or Cellular Forms. The Resins Are Formed By Reacting A Liquid Component A Containing A Mono Aluminum Or Mono Magnesium Phosphate And A Liquid Component B Containing A Magnesium Oxide And/Or A Wollastonite And A Dispersing Agent. Various Fillers May Be Incorporated And A Blowing Agent May Be Added To Form A Cellular Resin. |
| 4,504,602 | Sprayable Acoustical Composition | 3/12/1985 | O'Connell, Daniel D. ; Broz, Thomas A. | A Composition Comprising Mineral Wool And Polyolefin Fibers Is Adaptable For Spraying Onto A Ceiling Or Wall Or The Like To Form A Textured Acoustical Coating |
| 4,513,549 | Pre-Mitered Doorframe Assembly For Partition Wall Construction | 4/30/1985 | Wendt, Alan C. | A Doorframe Assembly For Partition Wall Construction Comprising Metal Backer Jamb Members Adapted For Attachment To Opposite Sides Of A Door Opening, Jamb Members Snap-Engaged With The Metal Backer Jamb Members, Hinge Plate Means For Supporting A Door Attached Along A Longitudinal Recess Portion Of A Jamb Member At One Side Of The Door Opening, Strike Plate Means Adapted For Receiving Door Locking Means Attached Along A Longitudinal Recess Of Jamb Member At The Opposite Side Of The Door Opening, Mortising Trim Of A Material Such As Vinyl Plastic Or Aluminum Adhered Along Remaining Open Portions Of The Jamb Members At Both Sides Of The Door Opening, And Two Header Clips One Mounted At The Upper End Of Each Of The Metal Backer Jamb Members And Arranged To Permit The Jamb Members To Be Set To The Exact Dimension Of A Mitered Header, Thereby Eliminating Any Manufacturing Tolerances, And A Mitered Header Member Snap-Engaged With Said Header Clips |
| 4,513,557 | Clip For Use With Runner And Runner Assembly Including The Clip | 4/30/1985 | Wendt, Alan C. | An Integral Clip For Use In Combination With A Channel-Form Runner For Securing A Pair Of Parallel Spaced-Apart Wallboard Panels In A Demountable Wall Structure, The Channel Having Integral Means For Retaining The Clip Therein, The Clip Having Means For Supporting The Wallboard Panels Within The Runner, Wherein A Runner Of Single Dimension May Be Utilized To Retain Wallboards Of Different Thicknesses By Utilizing Clips Of Various Dimensions |
| 4,518,652 | Method For Forming A Lightweight Cementitious Structural Product And Product Formed Thereby | 5/21/1985 | Willoughby Michael D | A Method For Producing A Lightweight Set Cementitious Product, And More Specifically, Gypsum Wallboard, Having Excellent Strength And Paper-To-Core Bond, Which Method Comprises Producing A Foam Comprising Polyvinyl Alcohol And Water, Introducing The Foam Thus Formed Into An Aqueous Cementitious Slurry, Depositing The Slurry Between Paper Cover Sheets, And Permitting The Cementitious Slurry To Set In A Further Embodiment An Emulsion Formed Of Asphalt And Wax Is Added To The Cementitious Slurry To Impart Water Resistance, The Polyvinyl Alcohol Of The Foaming Agent Cooperating With The Asphalt And Wax Emulsion To Improve The Water Resistant Properties Of The Set Gypsum Wallboard |
| 4,520,073 | Pressure Coating Of Mineral Fillers | 5/28/1985 | Randolph; Donald A.; Watkins; Kenneth R. | Mineral Filler Materials Are Provided With Improved Hydrophobic Coatings By Pressure Coating Of Porous Minerals Using Steam As A Carrier For The Coating Material Thereby More Complete Sealing Of Fissures And Cracks In The Porous Filler Materials' Surface Is Provided, Resulting In Very Water-Resistant Coated Particles Useful In Filling Polymeric Substrates Such As Paints, Plastics And Joint Compounds |
| 4,525,388 | Process For Expanding And Coating Perlite | 6/25/1985 | Rehder, Thomas E. ; Williams, Terrance L. | Expanded Perlite Is Produced While Simultaneously Or Substantially Simultaneously Coating The Expanded Perlite With An Hydrophobic Coating Material By Passing The Expanded Perlite And Heated Expander Exhaust Gases From The Expansion Chamber Through A Cooling And Coating Chamber Provided With Spray Nozzles To Provide A Stream Of Atomized Coating Material Onto The Expanded Perlite, While Upstream Thereof An Air Intake And Temperature Sensor Are Situated To Control The Air Flow And Temperature In The Cooling And Coating Chamber So As To Provide Proper Curing Temperatures For The Coating Material Upon The Expanded Perlite Before It Is Separated From The Exhaust Gases |
| 4,530,653 | Apparatus For Forming Embossed Acoustical Tile | 7/23/1985 | Ishii, Yasuo | Apparatus For Making An Acoustical Tile Having A Pattern Of Raised Portions And Portions In Relief On The Tile Surface Is Provided By A Hollow Embossing Roll Containing The Pattern In Reverse And Interstices Communicating From The Surface Of The Roll Into The Hollow Interior Of The Roll In Operation The Roll Contacts The Formable, Acoustical Tile Fiber Composition Pulp With Sufficient Force As To Dispel The Pulp, Vent Air That May Be Between The Roll And The Pulp Surface Through The Roll, And Produce A Reversed Pattern Of The Roll Upon The Pulp Surface, Then Releasing The Pulp From The Surface Of The Roll By Rotation Of The Roll |
| 4,533,528 | Process For Continuously Calcining Gypsum To Low Dispersed Consistency Stucco | 8/6/1985 | Zaskalicky, Michael F. | Wet Chemical Gypsum Cake May Be Directly Fed To A Continuous Kettle Calciner To Produce A Stucco Having Lowered Dispersed Consistency Pre-Drying Of The Chemical Gypsum Is Eliminated And The Thus Produced Stucco May Be Used In The Formulation Of Building Plasters And In Gypsum Wallboard Manufacture That Will Use Less Fuel For Drying Excess Gauging Water |
| 4,545,170 | Expanded Metal Products | 10/8/1985 | R. Shirey | Expanded Metal Products |
| 4,548,676 | Paper Having Calcium Sulfate Mineral Filler For Use In The Production Of Gypsum Wallboard | 10/22/1985 | Johnstone Norman E; Kehoe John R | A Composite Paper Particularly Adapted For Use As Cover Sheets In The Production Of Gypsum Wallboard, The Paper Being Sufficiently Porous To Permit Better Drainage And More Rapid Drying In The Production Of The Paper, And When Applied To The Surfaces Of A Gypsum Slurry For Forming Wallboard, Permits Less Heat To Be Utilized In The Wallboard Conversion, Thereby Saving Energy In The Board Production Required For Drying The Board The Paper Comprises In Weight Percent: (A) Cellulosic Fibers In An Amount Of From About 65% To About 90% And Preferably Having A Fiber Freeness Of From About 300 Ml To About 550 Ml Canadian Standard Freeness, (B) Calcium Sulfate As A Filler In An Amount Of From About 10% To About 35%, (C) A Binder In An Amount From About 1% To About 31/2%, (D) A Flocculent In An Amount Of From About 01% To About 02%, (E) A Buffering Agent In An Amount From About 025% To About 10%, (F) A Neutral Sizing Agent In An Effective Amount To Prevent Water Penetration, (G) An Anionic Polymer In An Amount Suitable For Retaining Said Filler In Said Paper, And (H) A Cationic Starch When A Succinct Anhydride Is Used As The Neutral Sizing Agent In A Preferred Embodiment, After The Paper Is Treated With A Neutral Internal Sizing Agent During Its Formation, It Is Subsequently Treated With A Surface Sizing Agent After Formation Of The Paper, In Order To Provide Certain Properties Including Better Adhesion To The Gypsum Core When Used To Make Gypsum Wallboard |
| 4,552,683 | Gas Desulfurization Reactant | 11/12/1985 | Powell, Byron E. ; Bakhshi, Virendar S. ; Randolph, Donald A. | A Process For Adsorbing Sulfur Dioxide From A Gas Comprising Contacting A Gas Containing Sosub2, Such As A Flue Gas, With About Stoichiometric Amounts Of A Specially Prepared Calcium Oxide So That Substantially All Of The Sulfur Dioxide Content Is Reacted Throughout The Calcium Oxide Particle To Form A Calcium Sulfate Reaction Product The Useful Calcium Oxide Particles Comprise A Highly Voided Skeletal Structure Of Very Large Surface Area And Large Pore Volume With Numerous Macro Pores Such Particles Are Obtained By Flash Calcining Sand-Size Grains Of Calcium Carbonate, Such As Aragonite, Calcite Or Dolomite |
| 4,557,973 | Fire Resistant Gypsum Board Containing Mineral Wool Fibers And Method | 12/10/1985 | Ali, Mohammad H. | Blown Mineral Wool Fibers Are Introduced Into Slurries (Such As Gypsum Board Core Formulations And Steel Column Fireproofing Plaster Formulations) By First Blending And Coating The Blown Mineral Wool With A Powdered Calcium Sulfate To Produce A Light, Open Nodulated Effect When Mixed Into Aqueous Calcined Gypsum Slurries, The Nodules Open Up, Thoroughly Dispersing The Mineral Wool--Calcium Sulfate Blend In The Aqueous Slurry And Contributing Fire Resistant Properties To The Set Gypsum Product |
| 4,565,041 | Movable Partition Base Attachment | 1/21/1986 | Wendt, Alan C. | A Base Trim Attachment Assembly Is Provided For Movable Partitions Comprising Retainer Clips Having Formed Barbs Which Are Installed Into Gypsum Panels By Pressing The Barbs Into The Panels, And Having Means For Receiving A Nail Which Is Driven On A Downward Angle Into The Panels The Nails Prevent Outward Movement Of The Clips And The Barbs Restrict Any Upward Movement Which Would Normally Permit Loosening Of The Nails After The Clips Are Installed, The Base Is Slipped Down Over The Clips Until It Snaps In Place The Present Structure Permits A Very Thin Base Which Matches Existing Moveable Partition Components |
| 4,567,706 | Edge Attachment Clip For Wall Panels | 2/4/1986 | Wendt Alan C | An Integral Clip For Attaching Wall Panels To Metal Studs Having Flanges In Engagement With The Wall Panels, The Clip Comprising Impaling Points Adapted To Be Driven Into The Edge Of A Panel And Additional Impaling Points Adapted To Be Driven Into A Major Surface Of The Panel For Securing The Clip To The Panel, The Clip Also Having Flange Attachment Members Struck From The Clip And Adapted To Engage The Flange Of A Stud, Thereby Affixing The Panel To The Stud |
| 4,569,171 | Base Trim System For Partition Corners | 2/11/1986 | Kuhr, Albert F. ; Wendt, Alan C. | A Base Trim Piece For The Corner Of Intersecting Walls Has Two Upright Wings Angularly Joined At A First Edge Of Each, A Recessed Flange Joined To The Opposite Edge Of Each Wing, And A Planar Hook Projecting Upwardly From Each Such Flange To Lie In A Plane Between The Vertical Planes Of The Corresponding Wings And Flanges The Hook Acts As A Fastener For An Abutting Planar Base Trim Piece |
| 4,570,390 | Partition System Adapted To Support A Cantilevered Load | 2/18/1986 | Wendt, Alan C. | A Slotted Standard Adapted To Receive A Shelf Bracket Or The Like Is Fastened To A Metal Stud Having A Longitudinal Channel Defined By The Fingers Of A Furcated Extension Of The Studs Web The Walls Of The Channel Are Either Threaded Or Threadable To Receive A Screw Which Passes Through The Standard And Fastens The Standard To Ledges On Both Sides Of The Channel Opening When Placed In A Partition, The Stud Serves As An Anchor For The Standard So That A Bracket May Be Attached To The Standard In Order To Support A Shelf, A Piece Of Furniture Or The Like |
| 4,570,400 | Curtain Wall Stud Slide Clip | 2/18/1986 | Slager, Richard E. ; Balinski, Henry A. | A Clip For Connecting A Curtain Wall Stud To The Load Bearing Framework Of A Building Is Provided With Detents So That The Clip May Be Pushed Onto The Stud And Does Not Have To Be Supported By Hand While It Is Being Welded To The Framework |
| 4,573,304 | Honeycomb Floor Panel And The Like | 3/4/1986 | Mieyal David F | Honeycomb Floor Panels For Use In Elevated Floors Or The Like Are Disclosed. The Honeycomb Structure Provides Similar Metal Strips Providing Lateral Cuts Along One Edge Providing Angulated Tabs. The Angulation Of The Tabs Provides An Angulated Throat Having A Width Substantially Greater Than The Thickness Of The Strips So That The Strips Can Be Assembled In An Interfitting Relationship While The Strips Of The Two Arrays Are Angulated With Respect To Each Other. After Assembly, The Arrays Are Moved To A Substantially Perpendicular Position, And In Such Position A Tight Fitting Relationship Is Achieved To Eliminate Looseness. Such Honeycomb Is Provided, In Accordance With One Embodiment, With Upper And Lower Metal Sheets Which Are Welded Or Otherwise Fastened To The Honeycomb Itself. In Such Embodiment, An Additional Upper Surface Sheet Is Provided To Prevent Denting And To Distribute Concentrated Loads To Prevent Crushing Of The Honeycomb. Sound Deadening Is Provided Between The Two Upper Sheets. In Another Embodiment, The Honeycomb Only Extends A Portion Of The Distance From The Bottom Of The Panel And Is Embedded At Its Upper Edge In A Layer Of Lightweight Concrete. The Concrete Provides The Load Bearing Surface Of The Panel. |
| 4,574,547 | Window System For Demountable Walls | 3/11/1986 | Menchetti Robert J; Safran Robert H; Sauer Gale E | A Window System For Demountable Walls Is Disclosed Which Eliminates The Necessity Of Custom-Sizing Of Windows To Compensate For Variations In Floor-To-Ceiling Spacing. The Window System Provides Jacking Means Mounted On The Lower Window Frame Member Which Are Operable To Adjust The Height Of The Window From The Floor To Compensate For Variations In Floor-To-Ceiling Spacing. A Floor Trim Assembly Includes Cover Plates Which Extend Up And Over The Lower Framing Member And Jacking System To Obscure Both From View. Such Cover Plates Rest On The Floor To Provide A Uniform Height Lower Window Trim That Follows The Floor Line. A Baseboard And Upper Trim System Extends Uniformly Along The Window And Adjacent Wall Panels To Provide An Integrated Window And Wall System. The Side Framing Members Connect To Sheet Metal Wall Studs For Additional Strength And Enclose The Adjacent Stud In Instances In Which Windows Are Mounted Adjacent To Each Other. The System Allows The Use Of Standard Size, Preglazed Windows, But Also Allows Field Glazing When Required. |
| 4,574,555 | Access Floor Panel With Edge Trim | 3/11/1986 | Cline Steven D | An Access Floor Panel Construction Employing Peripheral Trim Channel Elements Joined Together At The Panel Corners And Fixed At Their Mid-Lengths To The Edges Of A Main Body As Disclosed, The Trim Elements Are Of An Organic Thermoplastic Material And Are Ultrasonically Welded Together At Their Ends And Thermoplastically Deformed Into Receiving Portions Of The Main Body Edges An Assembly Fixture Holds The Trim Elements In Position For Final Assembly In A Manner Which Reduces The Size Of Any Gaps Which Might Occur As A Result Of Dimensional Tolerances In The Panel Components |
| 4,576,620 | Apparatus For The Production Of Mineral Fibers Having Supplemental Collection Chamber Exhaust | 3/18/1986 | Porter William F; Porter Michael J; Johnson Dwight E | An Apparatus For The Production And Collation Of Mineral Fibers, Comprising An Air Fiberization Apparatus For Generating Mineral Fibers, A Collection Chamber For Collecting The Fibers Produced, And A Cyclone Type Air Exhaust Apparatus Connected By A Duct To An Upper Portion Of The Collection Chamber, The Exhaust Apparatus Reducing The Air Pressure Generated Within The Collection Chamber Thereby Increasing The Efficiency Of Fiber Collection, And Means For Returning Mineral Fibers Escaping From The Collection Chamber Through The Cyclone Exhaust Apparatus To The Main Fiber Discharge Position |
| 4,578,910 | Elevated Floor Panel System | 4/1/1986 | Germeroth David J; Ray Iii George F | A System For Interlocking The Edges And Corners Of Adjacent Panels Of A Pedestal Supported, Elevated Floor Construction. Edge And Corner Clamp Units Are Put In Place After Set-Up Of The Panels. The Edge Clamp Units Include A Lower Elongated Element Which Drops Through A Similarly Shaped Gap Between Adjacent Panels And Is Then Rotated 90 DEG Out Of Alignment. A Screw Turned From The Space Above The Floor Draws The Lower Clamp Element Towards An Upper Clamp Element To Grip And Interlock Intervening Edges Of The Adjacent Panels. Adjacent Corners Of Four Panels Are Interlocked To A Supporting Pedestal By An Overlying Clamp Plate. This Corner Clamp Plate Is Releasably Secured To The Pedestal By An Individual Screw Which Is Also Tightened From The Space Above The Floor. |
| 4,578,922 | Wire Impaling Clip For Gypsum Panels | 4/1/1986 | Wendt, Alan C. | Gypsum Panels And The Like Are Attached To "H" Studs By A Resilient, One-Piece Wire Clip Having Talons Which Are Anchored In The Edge Of A Panel And A Clamping Portion Which Grips A Flange Of The Stud |
| 4,584,808 | Concealable Double Acting Fastener For Wallboard | 4/29/1986 | Wendt, Alan C. | A First Wallboard And A Second Wallboard In Edge-To-Edge Abutment Are Secured To An Underlying Stud By A Double Acting Fastener Which Bends Around The Stud From A Flange To The Web Where A Screw Passing Through A Bight In The Fastener Holds It In Place Oppositely Oriented Wire Talons 20 And 25 Are Extensions Of A First Arm 17 And A Second Arm 18, Respectively Talon 20 Is Impaled In The Edge Of The First Wallboard And Talon 25 Is Impaled In The Edge Of The Second Wallboard A Loop 23 In The Second Arm 18 Rests Behind The First Wallboard And Both Arms Rest Behind The Second Wallboard A Force Tending To Move Either Wallboard Away From The Stud Is Resisted By Both Arms |
| 4,584,811 | Furring Bracket For Fireproofed Beams | 4/29/1986 | Balinski, Henry A. | Fireproofing Of I-Beams In Building Structures Is Necessary To Prevent The Loss Of Strength In The Event Of A Fire Gypsum Board Liners For Elevator Shafts And The Like Rest In Runners Attached To The I-Beams Proper Placement Of The Runners Is Especially Critical In The Construction Of Elevator Shafts But The Correct Location Of The Runners May Not Be Known Until After The I-Beams Have Been Fireproofed The Furring Clip Disclosed Herein Snaps Onto The Bottom Flange Of An I-Beam And Is Fireproofed Along With The Beam The Ceiling Runner May Be Screw Attached To The Furring Clip After The Hoistway Rails In The Elevator Shaft Are In Place |
| 4,586,305 | Clip For Use With Runner And Area Separation Wall Structure Utilizing Clip | 5/6/1986 | Balinski Henry A | An Integral Clip For Use In Combination With A Lower Channel-Form Runner For Securing And Supporting A Pair Of Spaced-Apart Wallboard Panels In A Demountable Structure, The Clip Having Flanges For Engaging And Being Supported Upon The Edges Of The Flanges Of The Runner, And Having A Platform For Supporting The Lower Edges Of The Wallboard Panels In A Position Spaced Above The Bottom Of The Runner To Prevent Absorption Of Water And Formation Of Mildew At The Edges Of The Wallboard Panels |
| 4,587,173 | Method For Improving Adhesion Of Joint Compound To Metal Cornerbead | 5/6/1986 | Lat Geronimo E; Williams Terrance L | Metal Cornerbead For Drywall Partitions Is Coated With A Water Reducible Acrylic Resin To Improve The Adhesion Of Joint Compound To It Aqueous Solution Of Resin May Be Added To Roll-Forming Lubricant Such As Hexylene Glycol |
| 4,587,774 | System Adapted To Support A Cantilevered Load At A Partition Break | 5/13/1986 | Wendt, Alan C. | Hollow Wall Partitions Comprising Kerfed-Edge Wallboards Supported By Kerf-Engaging Studs Often Have Doors Or Windows Or Other Breaks Adjacent To Such A Stud Which Also Has The Function Of Supporting A Cantilevered Load Such As A Cabinet Such Studs Have A Bifurcated Web Comprising A Plate Portion And A Channel Housing The Channel Housing Is Open To The Frontal Insertion Of A Slotted Standard From Which The Cabinet Is Suspended PAL A Multi-Functional E-Shaped Rail Is Used To Connect The Windows And Doors To The Bifurcated Stud And To Attach The Bifurcated Stud To A Solid Wall Where The Partition Begins Or Ends |
| 4,592,966 | Methods Of Manufacturing Inorganic Resin Bound Articles And Product | 6/3/1986 | Prior William L; Sargeant William C | Two Distinct Resin Compositions Are Provided In Two Physically Separated Components-One Component Impregnates A Liquid-Penetrable Article Substrate, Such As A Paper Web, To Provide A Reactive Substrate Capable Of Forming A Resin Cement In Situ Upon Contact With The Other Component A First Inorganic Resin Component, Hereinafter Referred To As Component A, Is A Liquid Comprising An Aqueous Composition Of An Aluminum Phosphate, Or A Magnesium Phosphate Or A Mixture Thereof A Second Component, Hereinafter Referred To As Component B, Is A Liquid Comprising An Aqueous Vehicle; A Phosphate-Reactive Constituent Selected From A Magnesium Oxide Source, Reactive Wollastonite, Or Mixtures Thereof Having A Relatively Low Surface Area, Eg Dead-Burned Magnesium Oxide Having A Surface Area Of About 075 M2/Gm; And A Non-Reactive Phosphate Dispersing Agent |
| 4,592,966 | Methods Of Manufacturing Inorganic Resin Bound Articles And Product | 6/3/1986 | Prior William L; Sargeant William C | Two Distinct Resin Compositions Are Provided In Two Physically Separated Components-One Component Impregnates A Liquid-Penetrable Article Substrate, Such As A Paper Web, To Provide A Reactive Substrate Capable Of Forming A Resin Cement In Situ Upon Contact With The Other Component. A First Inorganic Resin Component, Hereinafter Referred To As Component A, Is A Liquid Comprising An Aqueous Composition Of An Aluminum Phosphate, Or A Magnesium Phosphate Or A Mixture Thereof. A Second Component, Hereinafter Referred To As Component B, Is A Liquid Comprising An Aqueous Vehicle; A Phosphate-Reactive Constituent Selected From A Magnesium Oxide Source, Reactive Wollastonite, Or Mixtures Thereof Having A Relatively Low Surface Area, E.G. Dead-Burned Magnesium Oxide Having A Surface Area Of About 0.75 M2/Gm; And A Non-Reactive Phosphate Dispersing Agent. |
| 4,594,833 | Honeycomb Floor Panel And The Like | 6/17/1986 | Mieyal David F | Honeycomb Floor Panels For Use In Elevated Floors Or The Like Are Disclosed The Honeycomb Structure Provides Similar Metal Strips Providing Lateral Cuts Along One Edge Providing Angulated Tabs The Angulation Of The Tabs Provides An Angulated Throat Having A Width Substantially Greater Than The Thickness Of The Strips So That The Strips Can Be Assembled In An Interfitting Relationship While The Strips Of The Two Arrays Are Angulated With Respect To Each Other After Assembly, The Arrays Are Moved To A Substantially Perpendicular Position, And In Such Position A Tight Fitting Relationship Is Achieved To Eliminate Looseness Such Honeycomb Is Provided, In Accordance With One Embodiment, With Upper And Lower Metal Sheets Which Are Welded Or Otherwise Fastened To The Honeycomb Itself In Such Embodiment, An Additional Upper Surface Sheet Is Provided To Prevent Denting And To Distribute Concentrated Loads To Prevent Crushing Of The Honeycomb Sound Deadening Is Provided Between The Two Upper Sheets In Another Embodiment, The Honeycomb Only Extends A Portion Of The Distance From The Bottom Of The Panel And Is Embedded At Its Upper Edge In A Layer Of Lightweight Concrete The Concrete Provides The Load Bearing Surface Of The Panel |
| 4,598,514 | Suspension Ceiling Grid Runner With Expansion Means | 7/8/1986 | Shirey Richard | A Fire-Rated Type Suspension Ceiling Grid Runner Is Disclosed Having Expansion Means Intermediate Its Ends Which Collapse When The Runner Expands Due To Elevated Temperatures Occurring During A Fire Or The Like. The Runner Provides A Boxlike Panel Supporting Flange Along The Lower End Of The Web Thereof In Which Slots Are Formed To Define A Flange Segment And Connecting Legs. When The Expansion Means Collapses, The Flange Segment Is Laterally Displaced As A Unit And Remains Connected To Each Adjacent Portion Of The Boxlike Flange By At Least Two Longitudinally Spaced Legs. The Displaced Flange Segment Functions As A Bridging Beam Which Continues To Connect The Adjacent Portions Of The Flange And Maintain Them In Alignment So That A Grid Formed Of The Runners Can Continue To Maintain Proper Support For Panel Even When Fire Conditions Occur. |
| 4,598,521 | Suspended Ceiling Grid With End Connector | 7/8/1986 | M. Slapsys, B. Everitt | Suspended Ceiling Grid With End Connector |
| 4,604,318 | Composition And Process For Forming Inorganic Resins And Resulting Product | 8/5/1986 | Prior William L; Sargeant William C | Compositions And Processes For Forming Inorganic Resins, Including Articles Of Manufacture Incorporating These Resins Are Disclosed The Inorganic Resins Are Characterized By Their Strength, Nonflammability, Dimensional Stability, Resistance To Organic And Inorganic Chemicals, To Heat And To Abrasion And Their Adaptability To Being Formed Into Noncellular Or Cellular Forms The Resins Are Formed By Reacting A Liquid Component A Containing An Aluminum Phosphate Or A Magnesium Phosphate And A Liquid Component B Containing A Source Of Magnesium Oxide, Such As Magnesia, And/Or Wollastonite And An Essentially Non-Reactive Phosphate Dispersing Agent Various Fillers May Be Incorporated And A Blowing Agent May Be Added To Form A Cellular Resin |
| 4,604,318 | Composition And Process For Forming Inorganic Resins And Resulting Product | 8/5/1986 | Prior William L; Sargeant William C | Compositions And Processes For Forming Inorganic Resins, Including Articles Of Manufacture Incorporating These Resins Are Disclosed. The Inorganic Resins Are Characterized By Their Strength, Nonflammability, Dimensional Stability, Resistance To Organic And Inorganic Chemicals, To Heat And To Abrasion And Their Adaptability To Being Formed Into Noncellular Or Cellular Forms. The Resins Are Formed By Reacting A Liquid Component A Containing An Aluminum Phosphate Or A Magnesium Phosphate And A Liquid Component B Containing A Source Of Magnesium Oxide, Such As Magnesia, And/Or Wollastonite And An Essentially Non-Reactive Phosphate Dispersing Agent. Various Fillers May Be Incorporated And A Blowing Agent May Be Added To Form A Cellular Resin. |
| 4,606,162 | Adjustable Glazed Partition System | 8/19/1986 | Wendt, Alan C. | A Glazed Partition System Adaptable To Various Angles Of Intersection Comprises An L-Shaped Mullion Having A Socket At Its Upper End In Which Two Opposed Glazing Rails Are Pivotable And An Arcuate Flange At Its Lower End Which Releasably Engages One Glazing Rail And Slidably Engages The Opposed Glazing Rail The Sills 14 And 16 Are Placed At The Desired Angles And The Glazing Rail 38L And The Mullion 18 Are Fastened At Right Angles To The Sills 16 And 14, Respectively The Glazing Rail 38R Is Then Snapped Onto The Mullion 18 And The Window Panes 50L And 50R Are Set In Place A Plurality Of Similarly Shaped Pivot Clips May Be Used In Place Of The Elongate Mullion |
| 4,608,801 | Floor Bracing Member For A Ceramic Tile Floor | 9/2/1986 | Green, William J. ; Semmerling, Ralph P. | Light Steel Joists May Be Spaced 24 Inches Oc Under Ceramic Tile Floors When Floor Bracing Members Are Spaced At 16 Inch Oc Intervals Between The Joists Under Such Floors Also Made Of Light Gauge Steel, The Bracing Member Is Slotted To Receive A Return Flange Of A Channel-Shaped Joist So That The Tops Of The Joists And Bracing Members Are Co-Planar |
| 4,611,453 | Suspension Ceiling Grid Connectors | 9/16/1986 | R. Worley | Suspension Ceiling Grid Connectors |
| 4,615,448 | Display Panel | 10/7/1986 | Johnstonbaugh, George S. | An Integral Display Panel Formed Of Wood Composite Material Provided With A Plurality Of Spaced Parallel Horizontally Extending Grooves Having A Modified T-Shaped Cross-Section, And A Substantially Sheet-Form Insert Mounted Within Each Of Said Grooves, Each Of The Inserts Having A Modified T-Shaped Cross-Section Defining A Chamber Adapted To Receive And Retain Metal Or Plastic Hangers Having Enlarged Base Portions Which Engage The Internal Wall Surfaces Of The Inserts To Hold The Hangers On The Panels With The Hanger Arms Extending Outwardly And Normally Transverse To The Face Or Surface Of A Panel, Each Insert Having A Web And A Pair Of Flanges Arranged In Converging Relationship, With The Outer Surface Of The Converging Wall Of Each Flange Being Provided With A Longitudinal Bead Engaging The Surfaces Of The Groove, Each Flange Terminating In A Hook-Form Lip, The Lips Directed Outwardly With Respect To Each Other And Engaging The Edges Of The Grooves Of The Panel To Provide More Positive Retention And An Improved Esthetic Appearance |
| 4,615,448 | Display Panel | 10/7/1986 | Johnstonbaugh, George S. | An Integral Display Panel Formed Of Wood Composite Material Provided With A Plurality Of Spaced Parallel Horizontally Extending Grooves Having A Modified T-Shaped Cross-Section, And A Substantially Sheet-Form Insert Mounted Within Each Of Said Grooves, Each Of The Inserts Having A Modified T-Shaped Cross-Section Defining A Chamber Adapted To Receive And Retain Metal Or Plastic Hangers Having Enlarged Base Portions Which Engage The Internal Wall Surfaces Of The Inserts To Hold The Hangers On The Panels With The Hanger Arms Extending Outwardly And Normally Transverse To The Face Or Surface Of A Panel, Each Insert Having A Web And A Pair Of Flanges Arranged In Converging Relationship, With The Outer Surface Of The Converging Wall Of Each Flange Being Provided With A Longitudinal Bead Engaging The Surfaces Of The Groove, Each Flange Terminating In A Hook-Form Lip, The Lips Directed Outwardly With Respect To Each Other And Engaging The Edges Of The Grooves Of The Panel To Provide More Positive Retention And An Improved Esthetic Appearance. |
| 4,616,461 | Wall Panel Attachment Hook | 10/14/1986 | Wendt Alan C | A Wall Panel Such As Gypsum Board Or Cement Board Is Attached To A Stud Disposed Between The Ends Of A Panel By A Wire Hook The Hook Has An Arcuate Talon Which Is Pushed Into The Core Of The Panel And A Shank Portion Which Is Fastened To The Web Of The Stud A Portion Of The Talon Lies In A Plane Which Is Parallel To The Faces Of The Panel |
| 4,621,470 | Runner And Area Separation Wall Structure Utilizing Runner | 11/11/1986 | Balinski Henry A | An Integral Generally Channel-Form Runner For Securing And Supporting One Or More Wallboard Panels In A Demountable Structure, The Runner Having An Integral Platform For Supporting The Lower Edges Of The Wallboard Panels In A Position Spaced Above The Bottom Of The Runner To Prevent Absorption Of Water And Formation Of Mildew At The Edges Of The Wallboard Panels |
| 4,621,471 | Base Trim System For Partition Corners | 11/11/1986 | Kuhr, Albert F. ; Wendt, Alan C. | A Base Trim System For Partition Corners Comprises A Base Trim And A Mounting Bracket For The Base Trim The Base Trim Piece For The Corner Of Intersecting Walls Has Two Upright Wings Angularly Joined At A First Edge Of Each, A Recessed Flange Joined To The Opposite Edge Of Each Wing, And A Planar Hook Projecting Upwardly From Each Such Flange To Lie In A Plane Between The Vertical Planes Of The Corresponding Wings And Flanges The Hook Acts As A Fastener For An Abutting Planar Base Trim Piece The Mounting Bracket Has Two Planar Upright Wings, A Recessed Attachment Flange Connected To Each Wing, And An Upwardly Oriented Planar Hook Extending Above Each Attachment Flange The Attachment Flanges Of This Mounting Bracket Extend Laterally Beyond The Lower Flanges Of The Base Trim |
| 4,621,473 | Field Attachment Clip For Wall Panels | 11/11/1986 | Wendt Alan C | An Integral Clip For Attaching Wall Panels To Metal Studs Having Flanges In Engagement With The Occluded Surfaces Of The Wall Panels, The Clip Comprising Impaling Points Adapted To Be Driven Into The Occluded Surface Of The Panel For Securing The Clip To The Panel, The Clip Also Having Flange Attachment Members Struck From The Clip And Adapted To Engage The Flange Of A Stud, Thereby Affixing The Panel To The Stud |
| 4,621,474 | Grid Connectors For Suspension Ceiling | 11/11/1986 | Worley Robert F | A Suspension Ceiling Grid System Is Disclosed Which Provides Intersections Including Through-Runners And Oppositely Extending Runner Ends. The Through-Runner Is Provided With A Connector Opening And The Runner Ends Are Provided With Identical End Connectors. The End Connectors Are Engaged And Disengaged By Lateral Movement And Provide Spring Means Which Resiliently Urge The End Connectors Toward The Locked Position. The End Connectors Provide Two Locking Systems, One Of Which Provides A Connection With The Through-Runner When Only One Connector Is Installed In The Connector Opening, And Subsequently Provides An Improved Strength Functionally Direct Connection Between The Two End Connectors When Two End Connectors Are Installed Within The Connector Opening From Opposite Sides. The End Connectors Provide A Second Separate Locking System Which Directly Connects Between The Two End Connectors. In One Embodiment, A Connector System Is Disclosed Which Allows Easy Removal Of A Runner Within An Assembled Grid. |
| 4,625,477 | Display Wall Formed Of Readily Attachable And Detachable Panels | 12/2/1986 | Johnstonbaugh, George S. | A Modular Wall Panel Construction Including At Least Two Vertically Oriented Structural Members In Edge-To-Edge Engagement, And Means Affixing The Structural Members Together And Permitting Ready Disassembly Thereof, Comprising A Vertically Oriented Standard Affixed To The Edge Of One Structural Member And Having Slots Provided Therein, And A Plurality Of Rotary Bolt Locks Mounted In The Edge Of The Other Structural Member, The Rotary Bolt Lock Having An Arcuate Bolt Engaging The Slots Of The Vertical Standard Member, Thereby Locking The Structural Members Together, And Permitting Easy Disassembly Thereto In One Embodiment Of The Invention Some Of The Structural Members Comprise Pilasters Also Having Rotary Bolt Locks Or Vertical Standards For Assembly With The Other Structural Members |
| 4,625,491 | Elevated Floor Panel With Integral Trim | 12/2/1986 | Gibson Franklin E | A Floor Panel For Elevated Floors And The Like Is Disclosed In Which A High-Pressure Laminate Floor Covering Is Laminated To The Load Surface Of The Panel Base The Laminate Is Provided With A Decorative Exposed Surface And An Inner Body Portion Rearwardly Therefrom Having A Color Contrasting With The Decorative Exposed Surface A Border Is Provided Around The Edge Of The Panel By Cutting Away The Decorative Surface To Expose The Contrasting Inner Body Portion |
| 4,626,199 | Submerged Combustion Calcination | 12/2/1986 | Bounini, Larbi | Gypsum Is Calcined By Contacting It With The Hot Gases Spewing Out Of A Combustion Tube Submerged In The Mass Of Gypsum The Formation Of Dead-Burned Anhydrite Is Reduced By Surrounding The Combustion Tube With A Second Tube Called A Draft Tube Gypsum Passing Through The Annulus Between The Tubes Is Heated By The Hot Gases And Is Ejected From The Annulus To Prevent Repeated Excursions Into The Hot Gas Zone At The Muzzle Of The Combustion Tube |
| 4,628,656 | Demountable Wall Panel | 12/16/1986 | Menchetti Robert J; Safran Robert H; Sauer Gale E | A Demountable Wall System Is Disclosed In Which Panels Are Removably Connected To H-Shaped Metal Studs. The Principal Structure Of The Panel Is Provided By A Wallboard Having A Width Less Than The Modular Spacing Between Studs. Sheet Metal Mounting Strips Are Adhesively Secured Along The Opposite Edges Of The Wallboard And Are Positioned With Respect To Each Other So As To Provide The Assembled Panel With An Exact Modular Width. Each Mounting Clip Includes A Connector Portion Which Releasably Secures The Panels To The Studs And A Finish Portion Which Extends Along But Is Spaced From The Side Edges Of The Wallboard. A Facing Sheet Of Flexible Sheet Material Is Laminated To The Forward Face Of The Wallboard And Extends Across The Gap Between The Finish Portion Of The Mounting Clips And The Wallboard To Hide Such Gap. The Facing Sheet Then Extends Back Along The Finish Portion And Is Provided With An Edge Positioned Where It Is Not Likely To Be Loosened During The Handling And Assembly Of The Panels. |
| 4,634,498 | Method For The Production Of High Density Fiberboard | 1/6/1987 | Hardesty; Dennis L.; Hanna; Timothy D.; Wendt; Frank J.; White, Jr.; Kendall D. | High Strength And High Density Wood Fiberboard Is Formed By Treating The Wood Fiber Source Material With A Highly Alkaline Solution, Such As Sodium Hydroxide Solution, Before Interfelting The Fibers Into A Loose Mat The Wood Source Material May Be Treated After Refining The Material Into Fibers, But Preferably, The Wood Source Material Is Treated Before Fibrillation Further, Wood Fiber Source Material May Be Partially Neutralized Before Felting Without Substantial Change In The Resulting Densities And Strengths |
| 4,638,606 | Decorative Trim System For Partition Adapted To Support A Cantilevered Load | 1/27/1987 | Wendt, Alan C. | The Outside Corners Of Hollow Partitions Comprising Kerfed-Edge Wallboards Supported By Kerf-Engaging Studs Having A Bifurcated Web Open To The Frontal Insertion Of A Slotted Standard From Which Furniture May Be Suspended Are Supported By A Corner Stud Fastened To The Bifurcated Stud The Corner Stud Has An Integral Kerf-Engaging Finger Or, Alternatively, An Attached Kerf-Engaging Spline Decorative Trim For The Outside Corner Is Fastened To A Longitudinal Channel Housing On The Corner Stud |
| 4,647,486 | Fire Resistant Gypsum Board Anhydrite | 3/3/1987 | Ali Mohammad H | Increased Fire Resistant Gypsum Board Core Formulations And Plaster Fireproofing Formulations Are Provided By Incorporating Calcium Sulfate Anhydrite Into The Formulations Particularly Fire Resistant Effects Are Achieved With A Fibrous Form Of Calcium Sulfate Anhydrite, And With Blends Of Calcium Sulfate Anhydrite II In Particulate Or Fibrous Form Optionally, The Formulations May Contain Either Small Amounts Of Textile Glass Fiber, Wollastonite Or Vermiculite |
| 4,648,230 | Locking Connection For Suspension Ceiling Grid Systems | 3/10/1987 | D. Mieyal Et Al. | Locking Connection For Suspension Ceiling Grid Systems |
| 4,655,950 | Foamed Cast Acoustical Material And Method | 4/7/1987 | Michalek; Christopher P. | A Lightweight Cast Acoustical Material Requiring Less Drying Time And Energy Is Obtained By Lightly Cooking An Aqueous Slurry Of Starch, Cooling It To About Less Than 140 DEG F, Whipping Air Into It, Adding Granulated Mineral Wool With Thorough Mixing To Form A Foam, Casting The Resultant Wet Foamed Pulp Into A Form And Drying The Formed Pulp To An Acoustical Product The Web Pulp Has An About 40 Weight % Reduction In Water Content, Resulting In Considerable Savings In Drying Time And Energy |
| 4,657,594 | Lightweight Joint Compound | 4/14/1987 | A. Struss | Lightweight Joint Compound |
| 4,661,161 | Ready-Mixed, Setting-Type Cementitious Composition Having Separately Packaged Accelerator | 4/28/1987 | Jakacki Edwin J; Ogle Larry G; Landwer Jonathan C; Andersen James C | A Setting-Type Cementitious Composition Useful For A Variety Of Applications, Including, In A Preferred Embodiment, A Joint Compound For Finishing Joints Between Adjacent Gypsum Wallboards, Comprising A First Or Cementitious Component In Pre-Mixed Form Comprising An Aqueous Slurry Of Calcium Sulfate Hemihydrate And A Retarder Formed Of Two Ingredients, One An Organic Retarder And The Other A Retarder Which Is A Chelating Agent, And A Second Or Accelerator Component Comprising An Accelerator Material Preferably In Aqueous Solution, The First Component Having An Adequately Long Shelf Life Suitable For Marketing, And, When The Cementitious Component Is Mixed With The Second Component For Acceleration, The Cementitious Mixture Acquires Excellent Application Properties Maintained Throughout A Suitable Working Period The Cementitious Component Hydrates After A Suitable Period To Form A Set Material Of Excellent Properties When Utilized As A Joint Compound, The First Or Cementitious Component Additionally Includes A Non-Leveling Or Thixotropic Agent And Other Ingredients Conventionally Utilized In Joint Compound Compositions |
| 4,671,832 | Access Floor Panel With Edge Trim | 6/9/1987 | Cline Stephen D | An Access Floor Panel Construction Employing Peripheral Trim Channel Elements Joined Together At The Panel Corners And Fixed At Their Mid-Lengths To The Edges Of A Main Body As Disclosed, The Trim Elements Are Of An Organic Thermoplastic Material And Are Ultrasonically Welded Together At Their Ends And Thermoplastically Deformed Into Receiving Portions Of The Main Body Edges An Assembly Fixture Holds The Trim Elements In Position For Final Assembly In A Manner Which Reduces The Size Of Any Gaps Which Might Occur As A Result Of Dimensional Tolerances In The Panel Components |
| 4,672,785 | Modified Runner And Area Separation Wall Structure Utilizing Runner | 6/16/1987 | Salvo E Vincent | An Integral Generally Channel-Form Runner For Securing And Supporting One Or More Wallboard Panels In A Demountable Structure, The Runner Having An Integral Support For The Lower Edges Of The Wallboard Panels In A Position Spaced Above The Bottom Of The Runner To Prevent Absorption Of Water And Formation Of Mildew At The Edges Of The Wallboard Panels |
| 4,679,375 | Suspension Ceiling Grid System With Narrow-Faced Grid | 7/14/1987 | R. Shirey | Suspension Ceiling Grid System With Narrow-Faced Grid |
| 4,681,644 | Accelerator For Gypsum Plaster And Process Of Manufacture | 7/21/1987 | O. Dosza | Accelerator For Gypsum Plaster And Process Of Manufacture |
| 4,686,253 | Lightweight Joint Compound Having Improved Paintability | 8/11/1987 | Struss, Arthur W. ; Williams, Terrance L. ; Eby, Lawrence T. | Expanded Perlite Coated With A Composition To Render The Perlite Impervious To Water, And A Joint Compound Incorporating The Same The Perlite Is Ground Prior To Expansion To Provide Subsequently Expanded Perlite Having A Mean Particle Size From About From About 50 To About 70 Microns, The Joint Compound Formed From The Perlite Having Greater Uniformity In Paint Gloss Appearance Between The Painted Surface Of The Joint Compound And The Painted Surface Of The Gypsum Wallboard On Which The Joint Compound Is Applied |
| 4,689,870 | Method Of Making Honeycomb Floor Panel | 9/1/1987 | Mieyal David F | Honeycomb Floor Panels For Use In Elevated Floors Or The Like Are Disclosed The Honeycomb Structure Provides Similar Metal Strips Providing Lateral Cuts Along One Edge Providing Angulated Tabs The Angulation Of The Tabs Provides An Angulated Throat Having A Width Substantially Greater Than The Thickness Of The Strips So That The Strips Can Be Assembled In An Interfitting Relationship While The Strips Of The Two Arrays Are Angulated With Respect To Each Other After Assembly, The Arrays Are Moved To A Substantially Perpendicular Position, And In Such Position A Tight Fitting Relationship Is Achieved To Eliminate Looseness Such Honeycomb Is Provided, In Accordance With One Embodiment, With Upper And Lower Metal Sheets Which Are Welded Or Otherwise Fastened To The Honeycomb Itself In Such Embodiment, An Additional Upper Surface Sheet Is Provided To Prevent Denting And To Distribute Concentrated Loads To Prevent Crushing Of The Honeycomb Sound Deadening Is Provided Between The Two Upper Sheets In Another Embodiment, The Honeycomb Only Extends A Portion Of The Distance From The Bottom Of The Panel And Is Embedded At Its Upper Edge In A Layer Of Lightweight Concrete The Concrete Provides The Load Bearing Surface Of The Panel |
| 4,690,862 | Integral Composite Profile Of Cellular And Non-Cellular Resins And A Dual Extrusion Method For Its Manufacture | 9/1/1987 | Hoffmann Daniel J | The Dual Extrusion And Fusion Of Cellular And Non-Cellular Resin Extrudates Produces An Integral Composite Profile Having A Tongue And Groove Interlock The Resins Are Extruded Through A Common Die Having Overlapping Orifices A Bulbous Tongue Of One Extrudate Is Encapsulated By Finger-Like Projections Of A Second Extrudate And The Mated Profiles Are Pulled Through A Vacuumized Sizing Box Adapted To Sealingly Receive The Cellular Portion And To Freely Receive The Non-Cellular Portion |
| 4,690,862 | Integral Composite Profile Of Cellular And Non-Cellular Resins And Dual Extension Method For Its Manufacture | 3/17/1998 | Hoffmann Daniel J | The Dual Extrusion And Fusion Of Cellular And Non-Cellular Resin Extrudates Produces An Integral Composite Profile Having A Tongue And Groove Interlock The Resins Are Extruded Through A Common Die Having Overlapping Orifices A Bulbous Tongue Of One Extrudate Is Encapsulated By Finger-Like Projections Of A Second Extrudate And The Mated Profiles Are Pulled Through A Vacuumized Sizing Box Adapted To Sealingly Receive The Cellular Portion And To Freely Receive The Non-Cellular Portion |
| 4,704,838 | Rounded Corner Ceiling Runner System | 11/10/1987 | Wendt, Alan C. | A Generally L-Shaped Coupling Plate Having An Arcuate Mandrel At The Junction Of Two Generally Rectangular Tongues Is United With A Notched Out Channel By Inserting The First Tongue Into Slots Defined By The Web Of The Channel And Opposed Ribs Spaced Apart From And Parallel To The Web, Bending The Notched Out Portion Of The Channel Around The Mandrel, And Inserting The Second Tongue Of The Plate Into The Slots Of The Bent Portion Of The Channel As It Approaches The Plate Barbs On The Edges Of The Plate Dig Into The Channel To Secure The Union Of The Two Pieces The Channel May Be Painted Before Being Bent Around The Plate So That A Predecorated Rounded Corner Runner May Be Installed At The Intersection Of Two Partitions |
| 4,743,475 | Drywall Coating Composition | 5/10/1988 | Negri; Robert H.; Attard; Peter M. | The Unequal Porosity And Different Textures Of A Drywall Reinforced With Joint Tape And Joint Compound Are Concealed By A Paint Made From A Low Cost, Easily Dispersible Powder In Which The Pigment Volume Concentration Is About 70% To About 75% A Vinyl Acetate/Ethylene Copolymer Serves As The Principle Binder And A Water Soluble Cellulose Ether Thickens The Water Dispersion Of Kaolin, Attapulgus Clay, Mica, Sodium Potassium Aluminum Silicate And Calcium Carbonate |
| 4,744,961 | Submerged Combustion Calcination | 5/17/1988 | Bounini, Larbi | Gypsum Is Calcined By Contacting It With The Hot Gases Spewing Out Of A Combustion Tube Submerged In The Mass Of Gypsum The Formation Of Dead-Burned Anhydrite Is Reduced By Surrounding The Combustion Tube With A Second Tube Called A Draft Tube Gypsum Passing Through The Annulus Between The Tubes Is Heated By The Hot Gases And Is Ejected From The Annulus To Prevent Repeated Excursions Into The Hot Gas Zone At The Muzzle Of The Combustion Tube |
| 4,744,963 | Highly Efficient Calcination Of Gypsum To Hemihydrate | 5/17/1988 | Dozsa, Otto L. ; Janninck, Donald R. ; Stone, Richard F. ; Bounini, Larbi | Hydrodynamic Pumping Of The Fluidized Calcining Mass In A Kettle Is Set Up By The Continuous Flow Of The Mass To And From Heating Rods Immersed Therein Which Are Constantly Emitting At Least About 1 British Thermal Unit Of Heat Per Minute Per Square Inch Of The Surface Of The Rods The Transfer Of Heat From The Walls And Bottom Of The Kettle Is Enhanced So That More Of The Available Heat Is Actually Absorbed Than In A Kettle Lacking Such Heating Rods The Rate Of Calcination May Be Increased While The Rate Of Heat Input Is Decreased |
| 4,750,307 | Wall Construction And Resilient Runner Therefor | 6/14/1988 | Slager, Richard E. | A Buckle-Resistant Resilient Runner Having A Thickness Of From 0017 To 0020 Inch Is Interposed Between The Framework And The Wall-Board Of A Partition Having A Sound Transmission Coefficient Of 53 A Scalloped Web Connects The Wallboard Support Flange And The Flange Of The Runner Which Is Fastened To The Framework The Distance Between The Support Flange And A Notch In The Scalloped Web Is Equal To Or Greater Than The Width Of A Stop Flange On The Opposite Edge Of The Support Flange This Design Makes The Runner Much More Resistant To Buckling Than A Prior Art Runner Made From Thicker Sheet Metal |
| 4,752,538 | Method For Forming A Lightweight Cementitious Structural Product And A Product Formed Thereby | 6/21/1988 | Bounini Larbi | A Method For Producing A Lightweight Set Cementitious Product Having Excellent Strength By Forming A Aqueous Cementitious Slurry, Incorporating Therein Expandable Polystyrene Beads Which Are Less Than Completely Expanded, And Heating The Slurry To Drive Off Excess Water, To Cause A Cementitious Mixture To Set, And To Further And Completely Expand The Polystyrene Beads In A Preferred Embodiment And Aqueous Slurry Of Calcium Sulfate Hemihydrate Is Produced Including Expandable Polystyrene Beads In A State Which They Are Partially But Not Fully Pre-Expanded The Slurry Is Deposited Between Two Paper Cover Sheets, And The Product Is Heated To Drive Off Excess Water, To Set The Gypsum To The Solid Dihydrate State, And To Complete The Expansion Of The Polystyrene Beads Until They Reach Their Fully Expanded State, Thereby Resulting In A Strong Lightweight Gypsum Wallboard Which Has Excellent Adhesion Between The Expanded Polystyrene Beads And The Set Gypsum |
| 4,753,058 | Elevated Floor Panel And Method Of Manufacturing Same | 6/28/1988 | Ray Iii George F | An Elevated Floor Panel Is Disclosed In Which A Lower Sheet Metal Element Is Formed With A Plurality Of Projections Extending From The Lower Plane Of The Panel To The Upper Planar Surface The Projections Are Formed In Sequential Die Drawing Operations In The First Die Drawing Operation, Square Truncated Pyramids Of Intermediate Height Are Drawn So That The Upper Surfaces Of The Intermediate Projections Provide Substantially Unworked Material In The Second Drawing Operation, Four Symmetrically Arranged, Semispherical Projections Are Drawn From The Unworked Material At The Tops Of The Preliminary Projections The Tops Of The Semispherical Projections Are Flattened And Are Welded To An Upper Sheet Member To Provide Efficient Stress Transfer Between The Two Sheet Metal Portions Of The Panel By Sequentially Preforming Two Drawing Operations On Material Which Is Substantially Unworked Prior To Each Drawing Operation, It Is Possible To Reliably Produce Projections Of Greater Depth The Compound Projections Resulting From The Two Drawing Operations Provide A Compound Beam System Which Efficiently Transfers Stress To Provide A Rigid, Strong Panel The Cavity Between The Two Members Is, In Some Cases, Filled With A Lightweight Concrete |
| 4,757,663 | Drywall Furring Strip System | 7/19/1988 | Kuhr; Albert F. | A Drywall Furring System Comprises A Plurality Of Longitudinal Carrying Channels Having Congruent Tongues Co-Planar With, Spaced Apart Along And Depending From The Opposite Flanges Of The Channels And A Plurality Of Furring Channels Having Pairs Of Slots Spaced Apart Along The Opposite Flanges Thereof On Opposite Edges Of The Tongues There Are Tabs Tapering Upwardly From The Rounded Corners Thereof And Elongated, Narrow Fingers Whose Lower Margins Angle Up From A Point Space Apart From The Distal Edges Of The Tongues The Tabs And Fingers Have Seats In The Same Horizontal Plane And The Fingers Have Retaining Hooks Extending Up Beyond The Seats A Gridwork Of The Carrying Channels And Furring Channels Is Constructed By Aligning Opposed Congruent Fingers Of The Former With A Pair Of Slots In The Latter And Passing The Fingers Through The Slots And Pushing The Opposite Flanges Of The Furring Channel Over The Rounded Corners Of The Tongues So That The Furring Strips Rest On The Seats Of The Fingers And Tabs Gypsum Wallboard Is Attached To The Furring Strips To Form A Ceiling A Linear Metal Ceiling Or Wall May Be Constructed By Using Furring Strips Having A Decorative Web To Fashion The Exterior Surface |
| 4,767,549 | Dispersant Coated Mineral Fiber In A Drilling Fluid | 8/30/1988 | Mcewen Terence D; Hansen John D | An Oil Well Drilling Fluid Containing Mineral Fibers Which Have Been Coated Individually With A Dispersant Is Better Able To Plug Voids And Fractures In The Rock Being Drilled Than Those Of The Prior Art Because The Mineral Fibers Are Thoroughly Dispersed The Fluid Is Substantially Free Of Nodulated Fibers A Dispersant Such As A Polyethoxylated Quaternary Ammonium Salt Is Added To A Stream Of Air Which Attenuates Streams Of Molten Slag Into Fibers The Fibers Are Uniformly Coated With The Dispersant And Nodules Thereof Unravel Easily When Placed In A Drilling Fluid |
| 4,779,394 | Connector For Suspension Ceiling Grid | 10/25/1988 | Shirey, Richard ; Koski, Gerald L. ; Teli, Jonathan P. ; Mieyal, David F. | A Suspension Ceiling Grid System Having Grid Runners Connected At Intersections Including A Through-Runner And Opposed Runner Ends Connected Together And To The Through-Runner On Opposite Sides Of The Through-Runner Each Runner End Is Provided With An End Connector Which Extends Through An Opening In The Web Of The Through-Runner Each Connector Is Provided With A First-End-In-Lock Which Connects The Connector To The Through-Runner Itself And A Dual Connector-To-Connector Lock Which Interconnects The Two Connectors At The Intersection The First-End-In-Lock Provides Opposed Lateral Projections Which Engage The Remote Side Of The Web Of The Through-Runner Beyond The Ends Of The Opening Therein The Connectors May Be Disassembled From An Intersection Without The Need For Tools And Without Damage To Either The Connector Or The Through-Runner Opening Further, An Intersection Can Be Disassembled And Subsequently Reassembled In A Trapped Module Condition |
| 4,779,394 | Connector For Suspension Ceiling Grid | 10/25/1988 | Shirey, Richard ; Koski, Gerald L. ; Teli, Jonathan P. ; Mieyal, David F. | A Suspension Ceiling Grid System Having Grid Runners Connected At Intersections Including A Through-Runner And Opposed Runner Ends Connected Together And To The Through-Runner On Opposite Sides Of The Through-Runner. Each Runner End Is Provided With An End Connector Which Extends Through An Opening In The Web Of The Through-Runner. Each Connector Is Provided With A First-End-In-Lock Which Connects The Connector To The Through-Runner Itself And A Dual Connector-To-Connector Lock Which Interconnects The Two Connectors At The Intersection. The First-End-In-Lock Provides Opposed Lateral Projections Which Engage The Remote Side Of The Web Of The Through-Runner Beyond The Ends Of The Opening Therein. The Connectors May Be Disassembled From An Intersection Without The Need For Tools And Without Damage To Either The Connector Or The Through-Runner Opening. Further, An Intersection Can Be Disassembled And Subsequently Reassembled In A Trapped Module Condition. |
| 4,779,394 | Connector For Suspension Ceiling Grid | 9/27/1994 | Shirey Richard; Koski Gerald L.; Teli Jonathan P.; Mieyal David F. | A Suspension Ceiling Grid System Having Grid Runners Connected At Intersections Including A Through-Runner And Opposed Runner Ends Connected Together And To The Through-Runner On Opposite Sides Of The Through-Runner Each Runner End Is Provided With An End Connector Which Extends Through An Opening In The Web Of The Through-Runner Each Connector Is Provided With A First-End-In-Lock Which Connects The Connector To The Through-Runner Itself And A Dual Connector-To-Connector Lock Which Interconnects The Two Connectors At The Intersection The First-End-In-Lock Provides Opposed Lateral Projections Which Engage The Remote Side Of The Web Of The Through-Runner Beyond The Ends Of The Opening Therein The Connectors May Be Disassembled From An Intersection Without The Need For Tools And Without Damage To Either The Connector Or The Through-Runner Opening Further, An Intersection Can Be Disassembled And Subsequently Reassembled In A Trapped Module Condition |
| 4,779,394 | Connector For Suspension Ceiling Grid | 9/27/1994 | Shirey Richard; Koski Gerald L.; Teli Jonathan P.; Mieyal David F. | A Suspension Ceiling Grid System Having Grid Runners Connected At Intersections Including A Through-Runner And Opposed Runner Ends Connected Together And To The Through-Runner On Opposite Sides Of The Through-Runner. Each Runner End Is Provided With An End Connector Which Extends Through An Opening In The Web Of The Through-Runner. Each Connector Is Provided With A First-End-In-Lock Which Connects The Connector To The Through-Runner Itself And A Dual Connector-To-Connector Lock Which Interconnects The Two Connectors At The Intersection. The First-End-In-Lock Provides Opposed Lateral Projections Which Engage The Remote Side Of The Web Of The Through-Runner Beyond The Ends Of The Opening Therein. The Connectors May Be Disassembled From An Intersection Without The Need For Tools And Without Damage To Either The Connector Or The Through-Runner Opening. Further, An Intersection Can Be Disassembled And Subsequently Reassembled In A Trapped Module Condition. |
| 4,787,767 | Stud Clip For The Top Rail Of A Partition | 11/29/1988 | Wendt, Alan C. | The Twisting Of Studs Within The Ceiling And Floor Rails Of A Partition Is Prevented By A Quickly Installable Stud Clip Which May Be Moved Along The Rail To Its Desired Position Before Being Fastened To The Rail And Stud PAL The Channel Form Top Rail In This System Has A Pair Of Longitudinal Slots Just Below The Web Which Are Defined By Inwardly Extending Longitudinal Tracks Which Are Parallel To The Web The Stud Clip Has A Base Plate From Whose Central Portion A Stud-Engaging Standard Depends At A Right Angle On The Lateral Portions Of The Plate There Are Skid Elements Which Fit Into The Slots And Engage The Tracks Extending From One Lateral Portion Of The Plate Beyond The Plane Of The Standard Is A Relatively Narrow Locking Tab Which Is In Edgewise Abutment With A Track The Abutment Of The Locking Tab With The Track Prevents Rotation Of The Stud Clip Within The Rail |
| 4,801,355 | Tabular Acicular Gypsum And Method Of Filling Paper | 1/31/1989 | Johnstone, Norman E. ; Gaynor, John C. ; Erickson, Robert W. | A Tabular Variety Of Acicular Gypsum Crystal Filler Is Prepared By Hydrating Calcium Sulfate Dihydrate Particles In A Seeded Continuously Stirred Reactor At A Low Level Of Super-Saturation To Obtain Crystals Having An Aspect Ratio Of About 100:10:1 And Average Length In The Longest Dimension Of About 100-450 Micrometers For The Manufacture Of Paper, The Obtained Tabular Crystal Slurry May Be Directly Added To The Paper Pulp Before Web Formation To Obtain A Filled Paper Having High Filler Retention |
| 4,817,357 | Suspension Ceiling Grid Tee | 4/4/1989 | J. Hocevar | Suspension Ceiling Grid Tee |
| 4,820,754 | Drywall Coating Composition | 4/11/1989 | Negri; Robert H.; Attard; Peter M. | The Unequal Porosity And Different Textures Of A Drywall Reinforced With Joint Tape And Joint Compound Are Concealed By A Paint Made From A Low Cost, Easily Dispersible Powder In Which The Pigment Volume Concentration Is About 70% To About 75% A Vinyl Acetate/Ethylene Copolymer Serves As The Principle Binder And A Water Soluble Cellulose Ether Thickens The Water Dispersion Of Kaolin, Attapulgus Clay, Mica, Sodium Potassium Aluminum Silicate And Calcium Carbonate |
| 4,849,193 | Process Of Preparing Hydroxylapatite | 7/18/1989 | Palmer, Jay W. ; Rosenstiel, Terry L. | This Invention Relates To The Manufacture Of Hydroxylapatite In A Through-Solution Process Wherein Monobasic Calcium Phosphate Is Reacted With A Calcium Hydroxide Solution In A Preferred Embodiment, An Acidic Premix Is Formed By Reacting Phosphoric Acid And Calcium Hydroxide With High Shear Agitation In A First Stage, And Thereafter Reacting The Acidic Premix With A Saturated Solution Of Calcium Hydroxide Also Under High Shear Agitation In A Second Stage The Second Stage Reaction Is Carried Out In An Alkaline Solution By Carefully Metering The Acid Premix Into The Calcium Hydroxide Solution Whereby The Ph Of The Solution Is Maintained Above 11 Until The Reaction Is Near Completion It Is Particularly Preferred To Use A Stoichiometric Portion Of Calcium Hydroxide In Carrying Out The Reactions After The Hydroxylapatite Precipitate Is Recovered, It May Be Sintered At A Temperature Between About 700degree C And 1100degree C For About 5 To 30 Minutes To Form A Crystalline Hydroxylapatite |
| 4,853,085 | Neutral Sized Paper For Use In The Production Of Gypsum Wallboard | 8/1/1989 | Johnstone Norman E; Kehoe John R | A Paper Particularly Adapted For Use As Cover Sheets In The Production Of Gypsum Wallboard, The Paper Having Improved Porosity And Strength To Permit Better Drainage And More Rapid Drying In The Production Of The Paper To Permit Less Fiber To Be Utilized, And To Permit Less Heat To Be Utilized In Drying The Paper, Providing For Production Of Superior Gypsum Board The Paper Comprises In Weight Percent: (A) Fibers Having A Fiber Freeness Of From About 350 To 550 Ml Canadian Standard Freeness, (B) A Buffering Agent In An Amount From About 025 To About 10%, (C) A Neutral Sizing Agent In An Effective Amount To Prevent Water Penetration, And (D) A Cationic Starch In A Preferred Embodiment The Paper Is Treated With A Neutral Internal Sizing Agent During Its Formation, And Subsequently Treated With A Surface Sizing Agent After Formation Of The Paper, In Order To Provide Certain Properties Including Better Adhesion To The Gypsum Core |
| 4,856,175 | Method Of Manufacturing Elevated Floor Panels | 8/15/1989 | Swensen Eugene L; Ray Iii George F | An Elevated Floor Panel Is Disclosed In Which A Lower Sheet Metal Element Is Formed With A Plurality Of Projections Extending From The Lower Plane Of The Panel To The Upper Planar Surface The Projections Are Formed In Sequential Die Drawing Operations In The First Die Drawing Operation, Square Truncated Pyramids Of Intermediate Height Are Drawn So That The Upper Surfaces Of The Intermediate Projections Provide Substantially Unworked Material In The Second Drawing Operation, Four Symmetrically Arranged, Semispherical Projections Are Drawn From The Unworked Material At The Tops Of The Preliminary Projections In One Embodiment, The Tops Of The Semispherical Projections Are Flattened In Another Embodiment, The Semispherical Projections Formed In The Second Drawing Operation Are Fully Curved In Such Embodiment, A Third Operation Is Performed To Produce A Flattened Extremity The Flattened Extremities Are Welded To An Upper Sheet Member To Provide Efficient Stress Transfer Between The Two Sheet Metal Portions Of The Panel By Sequentially Preforming Two Drawing Operations On Material Which Is Substantially Unworked Prior To Each Drawing Operation, It Is Possible To Reliably Produce Projections Of Greater Depth The Compound Projections Resulting From The Two Drawing Operations Provide A Compound Beam System Which Efficiently Transfers Stress To Provide A Rigid, Strong Panel The Cavity Between The Two Members Is, In Some Cases, Filled With A Lightweight Concrete |
| 4,876,837 | Corner Bead Structure | 10/31/1989 | Kelly Patrick M; Howlett Robert E; Pomeroy Paul A; Alvarez Dennis A | A Drywall Corner Bead Providing A Rounded Nose And Two Mounting Flanges Extending From Opposite Sides Of The Nose Is Formed From A Strip Of Galvanized Metal Of Uniform Thickness The Two Flanges Are Provided With Three Discrete Longitudinally Extending Bands Of Reduced Thickness Formed By Shear Deformation Of The Material Forming The Band The Flanges Are Knurled To Emboss The Surface Thereof And Openings Are Formed In The Flanges At Intervals Along Their Length The Corner Bead Is Formed By A Method In Which Shear Deforming Forces Are Progressively Applied To The Material Forming The Thinned Bands To Produce Lateral Deformation Of Such Material Without Any Appreciable Lengthwise Deformation After The Thinned Bands Are Formed, Forces Are Applied To Straighten The Corner Bead Subsequently, The Flanges Are Knurled To Provide An Embossed Surface And Holes Are Punched In The Flanges At Intervals Along Their Length Thereafter, The Nose Is Formed To Its Final Shape And The Flanges Are Positioned At Substantially Right Angles Relative To Each Other |
| 4,881,355 | Cold Roll-Formed Structures And Method And Apparatus For Producing Same | 11/21/1989 | Bosl, George F. ; Kelly, Patrick M. ; Alvarez, Dennis A. ; Sauer, Gale ; Hocevar, Joseph A. | A Cold-Forming Method Is Disclosed For Thinning Localized, Longitudinally Extending Portions Of Sheet Metal By Lateral Shear Deformation Without Any Substantial Longitudinal Deformation With Such Method, It Is Possible To Produce Elongated Members Which Are Thinned In Zones Of Low Stress And Are Thicker In Zones Of Higher Stress So As To Provide High Metal Use Efficiency The Method Is Performed By An Apparatus Including A Rotating Mandrel Providing Opposed Conical Surfaces And Pressure Rolls Operable To Apply Forces Substantially Perpendicular To The Axis Of Rotation Of The Mandrel To Cause A Portion Of The Sheet Metal To Yield In Shear To Reduce The Thickness Of Longitudinally Extending Portions Of The Sheet Metal The Forces Are Applied In A Plane Normal To The Length Of The Strip In Order To Avoid Longitudinal Elongation |
| 4,884,375 | System For Mounting Furniture On Wallboard Partitions | 12/5/1989 | Wendt, Alan C. | Hang-On Furniture Modules From Various Manufacturers Differ In The Placement Of The Hanger Hooks Extending From Their Back Wall A Support Cleat Is Frontally Inserted In The Unobstructed Opening Of A Bifurcated, Longitudinal Channel At The Edge Of A Stud In A Partition A Longitudinal Standard Having A Column Of Slots Located To Receive The Hooks Of A Particular Module Is Supported By The Cleat As The Standard Straddles The Stud In Which The Cleat Is Anchored |
| 4,915,623 | Calcination Apparatus | 4/10/1990 | Ball, David J. ; Varney, Edward ; Curtis, Philip ; Dzidrums, Martin | The Invention Concerns An Improved Method Of Calcining Gypsum In Which Non-Reactive Hot Gas Is Passed Into Contact With The Gypsum From A Source Through A Plurality Of Tubes Extending Downwardly Into The Gypsum The Invention Also Contemplates An Improved Apparatus Which Comprises A Calcining Kettle And A Plurality Of Tubes Connected To A Common Source Of Non-Reactive Hot Gas And Extending Downwardly Into The Kettle And Having Openings In Their Lower Regions To Release The Hot Gas Into The Contents Of The Kettle The Invention Provides A Method And Apparatus Which Produces Gypsum Plaster Of Improved Quality And With Less Insoluble Anhydrite |
| 4,915,936 | Dental Hygiene Composition For Reducing Periodontal Disease | 4/10/1990 | Patterson Lloyd D; Palmer Jay W | Gingivitis And Related Periodontal Problems Of The Gingival Tissues May Be Treated With A Dental Hygiene Composition Comprising An Effective Amount Of A Calcium Sulfate Compound Such As Calcium Sulfate Hemihydrate Preferred Compositions Comprise Mouthwashes And Oral Rinses Containing About 5-90% By Weight Of Calcium Sulfate Hemihydrate, A Liquid Carrier Such As Water, A Humectant And An Alcohol |
| 4,916,004 | Cement Board Having Reinforced Edges | 4/10/1990 | Ensminger, Robert P. ; Mccleary, Robert E. ; Wenzlow-Lukasch, Ludwig | A Cement Board Having Bare Surfaces And A Mesh Of Reinforcing Fibers Underlying The Top, Bottom, And Longitudinal Edge Surfaces Is Made Continuously On An Improved Apparatus Which Comprises A Pair Of Edger Rails Which Slidably Rest On A Conveyor Belt And Define The Path Of The Cement Board Being Made On The Conveyor Belt And A Means For Folding And Pressing Outer Margins Of The Bottom Mesh Into The Edge Surfaces And The Top Surface |
| 4,916,004 | Cement Board Having Reinforced Edges | 2/18/1992 | Robert P Ensminger; Robert E Mccleary; Ludwig Wenzlow-Lukasch | A Cement Board Having Bare Surfaces And A Mesh Of Reinforcing Fibers Underlying The Top, Bottom, And Longitudinal Edge Surfaces Is Made Continuously On An Improved Apparatus Which Comprises A Pair Of Edger Rails Which Slidably Rest On A Conveyor Belt And Define The Path Of The Cement Board Being Made On The Conveyor Belt And A Means For Folding And Pressing Outer Margins Of The Bottom Mesh Into The Edge Surfaces And The Top Surface |
| 4,918,879 | Merchandising Wall Structure Including Readily Attachable And Detachable Panels And Having Plastic Reveals | 4/24/1990 | Bodurow, Constance C. ; Murphy, Larry D. ; Perry, Gordon R. | A Modular Merchandising Wall Panel Construction Including At Least Two Vertically Oriented Structural Members In Edge-To-Edge Engagement, And Means Affixing The Structural Members Together And Permitting Ready Disassembly Thereof, Comprising A Vertically Oriented Standard Affixed To The Edge Of One Structural Member, The Standard Being In The Form Of A Channel Having Flanges Extending Therefrom, A Wall Of The Channel Having Slots Provided Therein, And A Plurality Of Rotary Bolt Locks Mounted In The Edge Of The Other Structural Member, The Rotary Bolt Lock Having An Arcuate Bolt Engaging The Slots Of The Vertical Standard, Thereby Locking The Structural Members Together, And Permitting Easy Disassembly Thereof In One Embodiment Of The Invention Some Of The Structural Members Comprise Pilasters Also Having Rotary Bolt Locks Or Vertical Standards For Assembly With The Other Structural Members In A Further Improved Embodiment Plastic Reveals Are Inserted Between The Walls Of The Standard And The Edges Of The Structural Members To Provide A More Secure Joint And Also To Improve The Esthetic Appearance Of The Modular Structure |
| 4,941,949 | Apparatus For Manufacturing Textured Acoustical Tile | 7/17/1990 | Luszczak, Myron M. | An Apparatus For Texturing The Surface Of Wet Cast Plastic Acoustical Composition During Manufacture Of Acoustical Tiles By Use Of Spinning Air Rolls In The Apparatus, At Least One Hollow Cylindrical Roll That Is Perforated In A Random Manner Is Suspended Over The Surface Of Wet Cast Plastic Acoustical Composition, The Roll Being Driven By A Motor The Interior Of The Roll Is Preferably Provided With A Perforated Air Tube Or Pipeline, From Which Issues Uniform Air Pressurization Of The Spinning Roll Vessel By Providing Differential Speed Of The Roll In Contrast To The Line Speed Of The Wet Plastic Composition And Different Air Pressurization Of The Roll, A Wide Variety Of Textures May Be Produced On The Surface Of The Wet Plastic Acoustical Composition |
| 4,944,122 | Horizontally Oriented Demountable Partition System | 7/31/1990 | Wendt; Alan C. | A Demountable Partition System Is Provided Having Horizontally Oriented Panels And Bands For Wire Management And Attachment Of Wall Supported Furniture In The System, A Horizontal Runner Has Upper And Lower Edges Engaging Wall Panels Disposed Above And Below A Recess Is Formed In The Runner Between The Upper And Lower Edges And A Cap Engages The Runner And Covers The Recess The Runner May Be Used To Route And Conceal Wiring And To Support Hang-On Furniture At Any Location Along The Length Of The Partition |
| 4,944,122 | Horizontally Oriented Demountable Partition System | 7/31/1990 | Wendt; Alan C. | A Demountable Partition System Is Provided Having Horizontally Oriented Panels And Bands For Wire Management And Attachment Of Wall Supported Furniture. In The System, A Horizontal Runner Has Upper And Lower Edges Engaging Wall Panels Disposed Above And Below. A Recess Is Formed In The Runner Between The Upper And Lower Edges And A Cap Engages The Runner And Covers The Recess. The Runner May Be Used To Route And Conceal Wiring And To Support Hang-On Furniture At Any Location Along The Length Of The Partition. |
| 4,947,607 | Suspended Ceiling Construction And Compression Strut Therefor | 8/14/1990 | Stein, Henry G. | This Invention Comprises A Suspended Ceiling Grid System Having An Adjustable Compression Strut Installed Between The Grid Members Of The System And The Building Or Construction Superstructure Which Lies In A Plane Above The Suspended Ceiling The Adjustable Compression Strut Stabilizes The Ceiling System And Prevents Upward Movement Of The System Such As Might Occur During A Seismic Shock Or Earthquake Tremor The Compression Strut Comprises Two Co-Axial, Telescoping Cylindrical Strut Members Having A Spring Clip Attached To The Inner End Of The Inner Strut Member That Allows The Strut To Be Extended But Not Retracted The Compression Strut Is Installed By Simply Holding It In Position Between The Suspended Ceiling Grid And The Superstructure And Then Extending The Strut Members Until They Are Locked In Place By The Action Of The Spring Clip |
| 4,959,272 | Gypsum Wallboard Paper Having Imitation Manila Colored Coating | 9/25/1990 | Long William J | A Paper Cover Sheet Particularly Designed For Use As The Face Sheet In The Manufacture Of Gypsum Wallboard, The Face Sheet Having A Base Formed Of A Plurality Of Filler Plies Formed Of Recycled Paper Comprised Of Clean Hard Stocks Such As Kraft And Boxboard Cuttings, And Being Free Of Topliner Plies Containing Flyleaf Furnish, The Base Having A Coating On The Face Surface Thereof Comprising A Light Colored Mineral Filler And A Binder The Coating Provides A Light Color To The Face Surface Generally Termed "Manila" The Elimination Of The Topliner Plies Results In A Paper Of Excellent Strength And Porosity |
| 4,969,346 | Apparatus For Producing Cold Roll-Formed Structures | 11/13/1990 | Bosl, George F. ; Kelly, Patrick M. ; Alvarez, Dennis A. ; Sauer, Gale ; Hocevar, Joseph A. | A Cold-Forming Method Is Disclosed For Thinning Localized, Longitudinally Extending Portions Of Sheet Metal By Lateral Shear Deformation Without Any Substantial Longitudinal Deformation With Such Method, It Is Possible To Produce Elongated Members Which Are Thinned In Zones Of Low Stress And Are Thicker In Zones Of Higher Stress So As To Provide High Metal Use Efficiency The Method Is Performed By An Apparatus Including A Rotating Mandrel Providing Opposed Conical Surfaces And Pressure Rolls Operable To Apply Forces Substantially Perpendicular To The Axis Of Rotation Of The Mandrel To Cause A Portion Of The Sheet Metal To Yield In Shear To Reduce The Thickness Of Longitudinally Extending Portions Of The Sheet Metal The Forces Are Applied In A Plane Normal To The Length Of The Strip In Order To Avoid Longitudinal Elongation |
| 5,011,668 | Calcination Apparatus | 4/30/1991 | Ball David J; Varney Edward | In A Method And Apparatus For Calcining Calcium Sulphate Dihydrate Or Like Heat Sensitive Material, In Which A Bed Of The Material Is Heated In A Vessel (41) By The Direct Introduction Of A Hot Gas Through A Tube (21) Extending Downwardly Into The Bed, The Proportion Of Insoluble Anhydrite (II) In The Product Is Reduced By Lowering The Temperature Of The Hot Gas Before It Contacts The Material Of The Bed This Is Done By Indirect Heat Exchange Through The Wall Of The Tube 21 With A Relatively Cool Substance, For Example, Powdered Gypsum Or Recycled Exhaust Gases, In An Outer Tube (26) The Cooling Material In The Outer Tube Contacts The Material In The Bed Before The Latter Is Contacted By The Hot Gas |
| 5,013,405 | Method Of Making A Low Density Frothed Mineral Wool | 5/7/1991 | Izard; David G. | A Method For The Manufacture Of Very Low Density Mineral Wool Structural Panels On A Moving Foraminous Support Wire By Frothing A Dilute Aqueous Dispersion Of Mineral Wool Is Disclosed The Forth, A Mass Of Delicate, Non-Resilient And Non-Uniform Bubbles Among The Entangled Mineral Wool Fibers Readily Breaks, Is Stripped Of Water And Dried Without Substantial Loss Of The Highly Open, Porous Structural Configuration By A First Controlled Rate Of Maturation Dewatering Followed By Brief Pulses Of High Vacuum Then The Open Structure Is Rapidly Stripped Of Remaining Water And Dried By Passing High Volumes Of Heated Dry Air Through The Structure With Continued Vacuum The Drainage Water May Be Recycled In The Process To Maintain A Low Level Of Binder And Any Frothing Aid Additions |
| 5,022,963 | Wet End Corrugating Of Acoustical Tile | 6/11/1991 | Porter, William F. ; Mastrogany, Michael G. ; Porter, Michael J. | A Wet Pulp Of Mineral Fibers Or The Like Is Forced Between A Pulp Carrier And A Corrugated Texturing Skid Inclined Toward The Downstream End Of A Moving Slab Of The Pulp The Corrugations Of The Skid Are Co-Directional With The Machine Direction Of The Conveyor Belt That Transports The Pulp Under And Beyond The Skid |
| 5,044,138 | Ceiling Suspension Structure Adapted For Unopposed Intersections | 9/3/1991 | Zaccardelli, Michael R. ; Koski, Gerald L. | A Suspended Ceiling Structure Adapted For Unopposed Intersections Wherein The Webs Of The Main Grid Runners Adjacent The Cross Runner Slots Are Provided With Embossments Which Strengthen The Web And Contain The Cross Runner End Connector Against Withdrawal It Is Preferred That The Embossments Are Placed At Each Side Of The Cross Runner Slots The Cross Runner End Connectors Have Tabs Bent Laterally From The Longitudinal Axis Of The Cross Runners With The Rearward Edge Of The Tab Bearing Against The Face Of The Main Runner Web, Whereby Upon The Application Of A Pull Out Force, The Tab Edge Bends Outwardly Until It Presses Against The Ends Of The Embossments This Unopposed Intersection Structure Is Commonly Referred To In The Art As An "Ashlar" Condition Or Configuration |
| 5,047,120 | Method For Manufacture Of Lightweight Frothed Mineral Wool Panel | 9/10/1991 | Izard David G; Englert Mark H | Low Density Mineral Wool Structural Panels Are Manufactured By Frothing A Dilute Aqueous Dispersion Of Mineral Wool, Lightweight Aggregate, Binder And A Small Amount Of Amine-Based Cationic Surfactant Onto A Non-Woven Scrim Cover Sheet, Dewatering The Mass And Drying It The Froth Is A Mass Of Weakly Resilient Bubbles That Rapidly Dewater And Burst To Concentrate The Solids In The Mass The Bubbles Are Readily Broken Without Loss Of The Voided Structural Configuration By A First Application Of Brief Pulses Of High Vacuum Followed By Further Dewatering Under Vacuum And Rapid Drying By Passing Large Volumes Of Air Through The Voided Mass Without Collapse Of The Structure To Result In Lightweight Structural Mineral Wool Panels |
| 5,088,261 | Curved Grid Tees For Suspension Ceilings | 2/18/1992 | Mieyal David F; Fletterick James A | A Horizontally Curved Grid Tee For Suspension Ceilings Is Bent In The Direction Parallel To The Plane Of The Flanges (12,13) Of The Grid Tee Such Grid Tee Is Provided With End Connectors (21) And Openings (22) So That The Grid Tee Can Be Assembled In A Suspension Ceiling Grid Combining Curved Grid Tees And/Or Straight Grid Tees To Produce Aesthetically Pleasing Patterns When Panels (81) Are Installed In The Openings Defined By The Curved Grid Tees, Appropriate Mating Curves Are Formed In The Panels So That The Panels Are Supported At Their Periphery A Method And Apparatus For Producing Such Grid Tees Involves Curved Tooling (31,36) Which Cooperates To Confine A Straight Grid Tee As It Is Bent To The Curved Shape The Tooling Provides Grooves Into Which The Flanges Project During The Bending Operation Such Grooves Are Constructed And Dimensioned So That The Inner Portion Of The Flange Which Is Subjected To Compressive Stresses Is Not Buckled Such Tooling Allows The Production Of Curved Grid Tees Having A Planar Smooth Flange In Which The Exposed Surface Coating Applied As A Prepainting Operation Is Not Damaged |
| 5,106,600 | Process For Producing Tabular Acicular Gypsum Crystals | 4/21/1992 | Johnstone, Norman E. ; Gaynor, John C. ; Erickson, Robert W. | A Process For Economically Producing Tabular Acicular Gypsum Crystals In A Continuously Stirred Reactor Is Disclosed The Process Involves Establishing A Steady State Atmospheric Pressure Reaction Zone Of About 20% To About 25% By Weight Solids Of Gypsum Crystals In Water At A Temperature Of About 50degree C To About 60degree C With Continuous Mild Agitation Calcium Sulfate Hemihydrate Is Fed To The Reaction Zone At A Rate To Maintain A Low Level Of Supersaturation, And A Suspension Of Gypsum Crystals In Water Containing Crystals Of A Mean Particle Length At Least Greater Than 45 Microns Is Withdrawn |
| 5,131,198 | Corner Bead For Drywall Construction | 7/21/1992 | Ritchie James A; King Don E | A Corner Bead For Drywall Construction Has A Galvanized Steel Core Strip Which Is Formed With A Central Portion, Side Flanges, And Shoulders Joining The Central Portion And Side Flanges. The Front Face Of The Core Strip Is Covered With A Paper Layer Having An Outer Protective Coating Thereon Overlying The Central Portion Adjoining Said Shoulders. A Paper Reinforcing Layer Covers The Back Of The Core Strip In One Embodiment To Minimize The Thickness Of The Core Strip. |
| 5,147,403 | Prosthesis Implantation Method | 9/15/1992 | Gitelis Steven | A Technique For Implanting A Prosthesis Is Provided According To The Technique A Prosthesis Is Implanted In A Host Bone By Preparing The Surface Of The Host Bone To Receive The Prosthesis, Applying Calcium Sulfate In Free-Flowing Form To The Receiving Surface Of The Host Bone, And Seating The Prosthesis In The Receiving Surface, Whereby The Calcium Sulfate Fills One Or More Gaps Resulting Between The Prosthesis And The Host Bone |
| 5,154,361 | Comminution Of Plastic Scrap | 10/13/1992 | Willoughby Michael D | A Method For Comminuting Plastic Scrap Material Wherein The Plastic Scrap Is Suspended In Water And An Antifoam Agent Is Added To The Suspension Which Is Then Passed Through A Disc Refiner Or A Valley Beater To Comminute The Plastic Scrap The Antifoam Agent Is Selected From Defoamers Having An HLB Value Of From About 05 To About 10 And A Polypropylene Glycol Having An Average Molecular Weight Of From About 900 To About 1500 The Comminuted Plastic Scrap Is Useful As An Additive To The Core Material Of A Gypsum Wallboard |
| 5,195,289 | Trim System For Suspension Ceilings | 3/23/1993 | Lalonde, Paul D. ; Sroub, J. Wesley ; Fletterick, James A. | A Support System For Trimming Exposed Edges Of Suspension Ceilings Provides A Trim Strip Mounting Clip Which Mounts On The Bulb Of An Adjacent Grid Tee Member And Provides A Face Portion Which Snaps Into And Locks With A Channel-Shaped Trim Strip The Connector Clip Supports The Trim Strip From The Adjacent Grid Members Without Any Exposed Fasteners And Provides An Uninterrupted Finished Edge Appearance Several Embodiments Of Connector Clips Are Illustrated, One Of Which Provides A Support Portion Pivotally Connected To A Face Portion So That Trim Strips Can Be Mounted On Adjacent Grid Members In Positions Parallel To The Adjacent Grid Members And At Angles Relative Thereto |
| 5,201,787 | Trim System For Suspension Ceilings | 4/13/1993 | Lalonde Paul D; Sroub J Wesley; Fletterick James A | A Support System For Trimming Exposed Edges Of Suspension Ceilings Provides A Trim Strip Mounting Clip Which Mounts On The Bulb Of An Adjacent Grid Tee Member And Provides A Face Portion Which Snaps Into And Locks With A Channel-Shaped Trim Strip The Connector Clip Supports The Trim Strip From The Adjacent Grid Members Without Any Exposed Fasteners And Provides An Uninterrupted Finished Edge Appearance Several Embodiments Of Connector Clips Are Illustrated, One Of Which Provides A Support Portion Pivotally Connected To A Face Portion So That Trim Strips Can Be Mounted On Adjacent Grid Members In Positions Parallel To The Adjacent Grid Members And At Angles Relative Thereto Also Disclosed Are Splice Plates Which Bridge Between Abutting Ends Of Trim Strips To Lock Such Abutting Ends In Proper Alignment Such Splice Plates Can Be Used With Straight Or Curved Trim Strips And Can Also Be Used At Inside Corners |
| 5,216,865 | Locking Connector For Suspension Ceiling Systems | 6/8/1993 | Lalonde, Paul D. ; Lehane, James J. | An End Connector Structure For Suspension Ceiling Grid Systems Provides A Connector To Connector Lock On Each Side Of The Web Of A Through Runner The Lock Includes A Lateral Tear Drop Shaped Protrusion Providing A Rearwardly Facing Exposed Edge In Combination With A Lateral Strap On An Associated Identical Connector Which Also Provides A Rearwardly Facing Exposed Edge When Tensile Stresses Are Applied Between The Two Connectors, The Connector To Connector Lock Is Subjected To Forces Causing The Associated Rearwardly Facing Edges To Engage And Resist Connector Separation The Protrusion Joins The Adjacent Portion Of The Connector Material With Bends Having Relatively Large Radius Of Curvature To Reduce The Weakening Of The Structure Of The Protrusion Resulting From Notch Sensitivity These Large Radius Of Curvatures Result In Substantially Improved Ultimate Strength In The Connector To Connector Lock When Compared With Protrusions Formed With Relatively Sharp Bends |
| 5,221,386 | Cement Board Having Reinforced Edges | 6/22/1993 | Ensminger, Robert P. ; Mccleary, Robert E. ; Wenzlow-Lukasch, Ludwig | A Cement Board Having Bare Surfaces And A Woven Mesh Of Reinforcing Fibers Underlying The Top, Bottom, And Longitudinal Edge Surfaces Is Made Continuously On An Improved Apparatus Which Comprises A Pair Of Edger Rails Which Slidably Rest On A Conveyor Belt And Define The Path Of The Cement Board Being Made On The Conveyor Belt And A Means For Folding And Pressing Outer Margins Of The Bottom Mesh Into The Edge Surfaces And The Top Surface |
| 5,250,153 | Method For Manufacturing A Mineral Wool Panel | 10/5/1993 | Izard, David G. ; Englert, Mark H. | The Manufacture Of Sag-Resistant, Lightweight Structural Mineral Panels On A Foraminous Support Wire Is Accomplished By Forming A Dilute Aqueous Dispersion Of Mineral Fiber And/Or Aggregate And An Anionically Stabilized Latex Binder, Coupling The Binder Solids Onto The Mineral Fiber Materials By Adding A Small Amount Of A Flocculent Such As A Cationic Polyacrylamide, And Passing The Slurry Onto A First Flooded Section Of The Support Wire To Form An Open, Entangled, Structural Mass Having Water In Interstitial Spaces Of The Entangled Mass Water Is Stripped From The Mass And The Mass Dried Without Collapse Of The Open Structure By Passing Heated Dry Air Through The Open Entangled Structure |
| 5,320,677 | Composite Material And Method Of Producing | 6/14/1994 | Baig Mirza A | An Improved Composite Material Is Produced By Mixing Gypsum And Host Particles Of A Stronger Substance, Such As Wood Fibers, In A Dilute Slurry; Heating The Slurry, Under Pressure, To Convert The Gypsum To Calcium Sulfate Alpha Hemihydrate; And Substantially Dewatering The Hot Slurry Before Rehydrating The Hemihydrate Back To Gypsum The Resulting Material Is A Homogoneous Mass Comprising Gypsum Crystals Physically Interlocked With The Discrete Host Particles According To A Further Aspect Of The Invention, An Improved Wallboard, Having Fire Resistance, Dimensional Stability And Excellent Strength Properties, Is Produced By Compressing The Composite Mass Before Hydrating It To A Final Set |
| 5,336,318 | Clay-Free, Asbestos-Free And Glass Microbubble-Free Drying Type Joint Compounds | 8/9/1994 | Attard Peter M; Espinoza Therese A | A Clay-Free, Asbestos-Free And Glass Microbubble-Free, Drying Type Joint Compound Containing An In-Situ Or Associative Thickener As A Substitute For Asbestos And Any Clay Substitute Therefor In Particular, These Drying Type Joint Compounds Contain No Attapulgus Clay Thereby Improving Viscosity Stability, Crack Resistance And Shrinkage The Lightweight Joint Compounds Contain Treated Expanded Perlite, Treated To Render It Water-Insensitive The Preferred In-Situ Thickeners Are Acidic Acrylate Copolymers It Has Been Found That The In-Situ Thickeners Should Be Used In Combination With The Normal Cellulosic Thickeners Used In Joint Compounds Instead Of As Replacements Therefor The Joint Compounds Contain The Usual Fillers And Latex Emulsion Binders, With At Least About 50% By Weight Of The Drying Type Joint Compound Being A Filler Selected From The Group Consisting Of Calcium Carbonate And Calcium Sulfate Dihydrate |
| 5,395,438 | Mineral Wool-Free Acoustical Tile Composition | 3/7/1995 | Baig Mirza A; Englert Mark H; Gaynor John C; Kacner Michael A; Singh Rajinder | A Mineral Wool-Free Acoustical Tile Composition And The Acoustical Tile Made Therefrom Wherein An Expanded Perlite Is Used As A Substitute For Granulated Mineral Wool To Provide Porosity And Good Sound Absorption Properties It Is Preferred That The Composition And Acoustical Tile Also Contain An Inorganic Filler To Provide Texturability During The Manufacturing Process In Addition, The Acoustical Tile Composition Also Contains A Starch Gel Binder And A Fiber Reinforcing Agent Selected From The Group Consisting Of Cellulosic Fibers, Polymeric Fibers And Glass Fibers It Has Been Found That The Mineral Wool-Free Acoustical Tile Compositions Of This Invention Have Acoustical Properties Comparable To The Commercially Available Cast Mineral Wool Tiles In Addition, The Mineral Wool-Free Compositions Can Be Used To Cast An Acoustical Tile Using Equipment And Procedures Currently Used To Produce Cast Mineral Wool Tiles |
| 5,517,796 | Stab-In Removable End Connector | 5/21/1996 | Koski Gerald L; Lehane James J; Hooper Douglas B; Lalonde Paul D | A Connector For Suspended Ceiling Grid That Provides A First End Lock In A Main Tee Slot And A Lock With An Identical Opposed Connector The Connector In The First End Lock And In The Connector-To-Connector Lock Is Installed With A Simple Stab-In Motion The Connector Works With A Non-Re-Entrant Slot Profile That Avoids The Risk Of Improper Assembly The Connector Is Releasable Without Tools And Is Reusable The Connector Emits An Audible Click When Fully Installed, Is Resistant To Damage From Rough Handling, And Affords High Tensile And Compressive Strength In Its Connections |
| 5,534,059 | Machinable Plaster | 7/9/1996 | Immordino, Salvatore C. | This Invention Is A Polymer Modified, High Density Gypsum Composition That Is Useful As A Machinable Plaster For Example, The Machinable Plaster Can Be Used With Computer Aided Carving Machines For Modeling In The Automobile Industry The Polymer Is A Redispersable Polymer Such As Ethylene/Vinyl Acetate/Vinyl Chloride Polymer |
| 5,558,710 | Gypsum/Cellulosic Fiber Acoustical Tile Composition | 9/24/1996 | Baig Mirza A | An Acoustical Tile Composition Based On A Gypsum/Cellulosic Fiber Composition Which Can Replace All Or A Portion Of The Mineral Wool Normally Present In Acoustical Ceiling Tiles The Gypsum/Cellulosic Fiber Composition Is Combined With A Lightweight Aggregate Material And A Binder To Form A Composition Which Is Used In A Water-Felting Process To Manufacture Acoustical Ceiling Tiles And Panels The Preferred Source Of The Cellulosic Fiber Is A Composite Gypsum/Cellulose Fiber Material Which Is Prepared By Mixing The Gypsum And Cellulosic Fiber Material With Sufficient Water To Form A Dilute Slurry Which Is Then Heated Under Pressure To Calcine The Gypsum, Converting It To An Alpha Calcium Sulfate Hemihydrate The Resulting Composite Material Comprises Cellulosic Fibers Physically Interlocked With Calcium Sulfate Crystals Another Source Of Both Gypsum And Cellulosic Fibers Is Waste (Scrap) Gypsum Wallboard Expanded Perlite Is The Preferred Lightweight Aggregate Material |
| 5,560,881 | Apparatus For Producing A Fissured, Acoustical Ceiling Panel And Method For Manufacturing Said Apparatus | 10/1/1996 | Hillman Theodore E; Kies Jared R | An Apparatus For Producing A Fissured, Acoustical Ceiling Panel Wherein The Pins Used To Fissure The Panel Are Roll Applied Thereto The Pins Are Embedded In Flexible, Resilient Polymeric Plates, And A Plurality Of The Plates Are Attached To A Rotary Drum Which Is Used To Apply The Fissuring Pins To The Surface Of The Panel The Invention Also Includes The Method For Manufacturing The Polymeric Plates Which Are Molded And Formed With The Fissuring Pins Embedded Therein |
| 5,590,502 | Panel Access Clip For Relocatable Partitions | 1/7/1997 | Wendt, Alan C. | A Panel Access Clip For Relocatable Partitions Having A Snap-Engageable Part Struck-Up From A Base Portion Over A Central Cut-Out And Joining Said Base Portion At A Flexure Zone Spaced Inwardly From A Panel Engaging Portion Of The Clip, Whereby To Reduce Shear Forces On The Panel Edge And Locate The Point Of Bending Flexure During Engagement And Disengagement With A Support Member To A Zone Spaced At Least One-Half The Width Of The Clip From Said Panel Engaging Portion The Clip Being Capable Of Allowing Engaged Panels To Be Removed From A Wall Partition Assembly Without Damage To The Edges Of The Panel, Whether They Are Kerfed Or Non-Kerfed Panels |
| 5,614,206 | Controlled Dissolution Pellet Containing Calcium Sulfate | 3/25/1997 | Randolph Donald A; Negri Jodi L; Devine Timothy R; Gitelis Steven | This Invention Relates To The Controlled Release Of Calcium Sulfate As Well As To The Controlled Release Of An Additive To A Calcium Sulfate Matrix Such As Medicaments Or Pesticides The Controlled Release Is Achieved By A Pellet Comprising Calcium Sulfate The Pellet Is Prepared By The Process Comprising Mixing Powder Consisting Essentially Of Alpha-Calcium Sulfate Hemihydrate, A Solution Comprising Water, And, Optionally, An Additive And A Powder Consisting Essentially Of Beta-Calcium Sulfate Hemihydrate To Form A Mixture, And Forming Said Mixture Into A Pellet, Wherein Said Alpha-Calcium Sulfate Hemihydrate And Beta-Calcium Sulfate Hemihydrate Powders Have Specified Properties Such As BET Surface Areas, Densities, Mean Particle Sizes, And Purifies The Dissolution Rate Of The Calcium Sulfate Pellet Is Controlled By Varying The Weight Ratio Of The Beta-Calcium Sulfate Hemihydrate Powder To The Alpha-Calcium Sulfate Hemihydrate Powder From 0 To About 3 The Invention Also Provides A Method Of Delivering Medicament In Vivo By Implanting A Pellet Prepared With Medicament Into A Human Or An Animal |
| 5,637,352 | Preparation Method For Lead-Titanium Based Thin Film | 6/10/1997 | Lee; Wan-In; Lee; Jun-Ki; Desu; Seshu B. | An Organometallic Lead Precursor, Represented By Following Formula: Lxpb(THD)2[I]Wherein L Is An Electron Donor Ligand Selected From The Group Consisting Of NR3 (R=H, CH3) Gas And Cl2 Gas; THD Denotes 2,2',6,6'-Tetramethyl-3,5-Heptanedione; And X Is In The Range Of 05 To 2, Is Prepared By Flowing A Gas Phase Electron Donor Into A Bubbler Containing Bis (2,2',6,6'-Tetramethyl-3,5-Heptanedione)Pb At A Predetermined Temperature, To Synthesize, In-Situ, An Adduct The Precursor Exhibits A Remarkable Improvement In Volatility, And In Stability At The Vaporization Point Lead-Titanium Based Thin Films Prepared From The Precursor, Display Superior Reproducibility And Reliability |
| 5,643,510 | Producing Foamed Gypsum Board Using A Foaming Agent Blend | 7/1/1997 | Sucech, Steven W. | This Invention Is A Process And Foaming System For Producing Foamed Gypsum Board Which Permits The Production And Control Of Large Foam Voids In The Gypsum Core By Adjusting The Ratio Of A First Foaming Agent And A Second Foaming Agent My Process Includes The Steps Of Preforming A First Foaming Agent Which Forms Stable Foam Voids In A Gypsum Slurry And Independently Preforming A Second Foaming Agent Which Forms Unstable Foam Voids In A Gypsum Slurry Independently, Blending The Two Different Foaming Agents Is The Key To Controlling Void Size A Greater Amount Of The Second Foaming Agent And A Lesser Amount Of The First Foaming Agent Is Preferred |
| 5,683,635 | Method For Preparing Uniformly Foamed Gypsum Product With Less Foam Agitation | 11/4/1997 | Sucech, Steven W. ; Hinshaw, Stewart E. ; Nemeth, Bradley S. ; Buster, Kip R. | The Invention Provides An Improved Method For Preparing Foamed Gypsum Products The Invention Can Utilize A Single Mixing Chamber And Significantly Improve The Efficiency Of Foaming Agent Usage In The Method Of The Invention The Point Of Insertion Of Aqueous Foam Into Calcined Gypsum Slurry Is Positioned Such That The Foam Is Agitated Less Than The Calcined Gypsum To Thereby Minimize Destruction Of The Foam While Still Uniformly Dispersing The Foam In The Calcined Gypsum Slurry This Is Accomplished, For Example, By Locating An Inlet For Foam Closer To The Discharge Outlet Of A Slurry Mixing Chamber Than The Location Of The Inlet For Calcined Gypsum Or By Locating The Foam Inlet In A Discharge Conduit Connected To The Discharge Outlet Of The Slurry Mixing Chamber |
| 5,687,525 | Stab-In Removable End Clip | 11/18/1997 | Koski Gerald L; Lehane James J; Hooper Douglas B; Lalonde Paul D | A Connector For Suspended Ceiling Grid That Provides A First End Lock In A Main Tee Slot And A Lock With An Identical Opposed Connector The Connector In The First End Lock And In The Connector-To-Connector Lock Is Installed With A Simple Stab-In Motion The Connector Works With A Non-Re-Entrant Slot Profile That Avoids The Risk Of Improper Assembly The Connector Is Releasable Without Tools And Is Reusable The Connector Emits An Audible Click When Fully Installed, Is Resistant To Damage From Rough Handling, And Affords High Tensile And Compressive Strength In Its Connections |
| 5,699,641 | Suspension Ceiling With Integrated Openings | 12/23/1997 | Tinen, William J. ; Singal, Pawan ; Hooper, Douglas ; Wendt, Alan C. | A Suspended Ceiling Grid System With An Integrated Aperture For Accessories Such As Lights, Air Diffusers And Like Accessories The System Has An Appearance Ring Of Suitable Size That Forms The Aperture And That Interconnects With Runner Elements Of Corresponding Suitable Length The Ring Is Disposed At The Geometric Center Of A Grid Module And The Interconnected Runners Are Arranged To Provide Support For The Ring And Related Accessory |
| 5,743,728 | Method And System For Multi-Stage Calcining Of Gypsum To Produce An Anhydrite Product | 4/28/1998 | Cloud, Michael L. ; Moore, Kirk S. | A Method And System For Calcining Gypsum To Recover Gypsum In A Form Consisting Essentially Of Calcium Sulfate Anhydrite Is Disclosed The Method Includes The Steps Of Feeding The Ground Gypsum Material Into A First Kettle And Heating The Ground Gypsum In The First Kettle To The First Predetermined Temperature The First Predetermined Temperature Is Preferably Below 400degree F So That The Gypsum Will Still Contain A Sufficient Amount Of Chemically-Combined Water So That It Will Self-Fluidize By Release Of Water Vapor So That It Will Flow Through The Apparatus The Ground Gypsum Is Then Overflowed Through At Least One Subsequent Stage And Heated To A Final Predetermined Temperature To Produce An Anhydrite Product To Produce Insoluble Calcium Anhydrite Or Dead Burn Material, The Final Predetermined Temperature Is Greater Than 900degree F And Preferably Within The Range Of About 900degree F-1300degree F In The Subsequent Stages, The Gypsum Powder Is Heated And Simultaneously Fluidized With A Fluidizing Media, Preferably Air, So That The Ground Gypsum Will Flow Through The Apparatus In The Preferred Embodiment, The Ground Gypsum Is Fluidized By A Plurality Of Mixing Blades Having Air Injection Pipes Along Their Breaking Edges For Injecting Air Into The Gypsum And A Plurality Of Air Injection Nozzles Disposed Radially About A Periphery Of The Kettles The Fluidization Of The Ground Gypsum In The Subsequent Stages Ensures That It Will Flow Through The Apparatus For Production Of An Anhydrite Product |
| 5,743,954 | Method For Continuous Refractoryless Calcining Of Gypsum | 4/28/1998 | Rowland, George E. ; Cloud, Michael L. ; Milligan, Daniel J. | A Method And Apparatus Is Disclosed For The Continuous Calcining Of Gypsum Material In A High-Efficiency, Refractoryless Kettle Preferably Heated By A Multiple Series Of Separate Immersion Tube Burner Coils, Each Coil Operating Within A Specific Calcining Zone Inside The Kettle The Lowest, Ie, Initial, Burner Tube Coil Is Formed With A Low Profile To Permit Use Of A Small Initial Gypsum Charge, And Hence, A Quick Kettle Start-Up Cycle That Low Profile Initial Burner Design Also Helps Keep The Agitator Motor's Load At A Minimum During Cycle Start-Up Due To The Immersion Tube Burner Coil Construction, No Refractory Structure For The Kettle Is Required Also, No Separate Hot Pit Structure Is Required, As The Kettle Is Used To Merely Hold The Material Being Calcined And No Residual Heat Is Present A Relatively Thin Kettle Can Be Constructed, As It Need Only Withstand Relatively Low Operating Temperatures The Kettle's Staged, Interiorly-Disposed Burner Tube Coils Act To Directly Transfer Burner Tube Heat To The Kettle's Contents, And The Coils Exhaust Exteriorly Of The Kettle The Present Calcining Method And Apparatus Permits Substantially Improved Tonnage Output Of Calcined Material, For A Kettle Of A Given Size A Modification To The Present Apparatus Includes Structure For Recovering And Recycling A Portion Of The Spent Burner Gases, And Also Separate Structure For Forced Aeration Air, Both Preferably For Introduction Through The Kettle Bottom One Alternate Embodiment Concerns A Differently-Shaped Kettle Design Another Alternate Embodiment Concerns A Modified Kettle Which Uses A Single Immersion Burner Tube Coil To Provide The Total Heating Of The Kettle's Contents, For Use In Certain Calcining Applications |
| 5,746,822 | Ready-Mixed Setting Type Joint Compound | 5/5/1998 | Espinoza, Therese A. ; Miller, Charles J. ; Stevens, Richard B. | A Cementitious Composition Of The Setting Type Which Can Be Kept In A Ready-Mixed State And Which Can Be Caused To Set And Harden Upon Introduction Of An Accelerator With Reproducibility And Set Time Predictability The Cementitious Base Composition Contains Calcium Sulfate Hemihydrate As A Principal Filler Material And Certain Non-Calcium Bearing Phosphate Additives Which Prevent Setting Action In The Presence Of Water An Accelerator, Such As Zinc Sulfate, May Be Added To The Ready-Mixed, Cementitious Composition To Initiate The Setting Action, Or The Ready-Mixed Cementitious Composition Can Be Used As A Drying Type Joint Compound Without The Addition Of An Accelerator |
| 5,753,871 | Sag Resistant, Cast Acoustical Ceiling Tile And Method For Making The Same | 5/19/1998 | Kahara, Bruce J. ; Bitzan, David B. | A Sag Resistant, Cast Acoustical Ceiling Tile Which Has A Mineral Wool Core And A Starch Binder And Which Has A Formaldehyde Resin Impregnated Paper Backing A Kraft Paper Backing Which Has Been Impregnated With A Melamine Formaldehyde Resin Has Been Found Particularly Effective In Providing Sag Resistance In High Temperature, High Humidity Conditions Such As Encountered In Pacific Rim Countries A Method Has Been Developed To Manufacture The Sag Resistant, Cast Acoustical Ceiling Tile Wherein Water Is Applied To The Paper Backing Prior To Machining And Painting To Provide A Tile Which Has A Relatively Flat Initial Plane Position |
| 5,761,868 | Grid Connector | 6/9/1998 | Lalonde, Paul D. ; Koski, Gerald L. ; Lehane, James J. | An End Connector For A Ceiling Grid Runner That Interlocks With An Identical Connector When Assembled In A Common Slot Of A Through Runner Problems Associated With Interference Between A Lock Lance Stamped Laterally Out Of The Plane Of The Connector And The Opposing Connector When The Second Connector Is Being Inserted In The Slot Are Reduced By A Relief Zone In The Forward Portion Of The Connector That Is In The Form Of A Concave Area That Clears The Opposing Lock Lance Until The Second Connector Is Nearly Fully Received In The Slot |
| 5,761,869 | Ceiling Grid With Bevel Configuration | 6/9/1998 | Tinen; William J.; Kirsop; William E.; Lehane; James J.; Lalonde; Paul D. | A Suspension Ceiling Grid For Supporting Rectangular Panels The Grid Members Are Elongated Runners With A Generally Inverted T-Shaped Cross-Section Flanges On The Lower Side Of The Runners Have Inclined Exposed Portions And Vertical Portions Concealed By Rabbeted Edges Of The Panels The Flange Portions Are Configured With Respect To The Proportions Of The Rabbeted Panels, To Appear As Beveled Edges Of The Panels Whereby The Finished Ceiling Appears To Be Gridless The Runners Are Specially Notched And Trimmed To Provide A Strong But Attractive Faux Miter Joint At Their Intersections |
| 5,817,262 | Process Of Producing Gypsum Wood Fiber Product Having Improved Water Resistance | 10/6/1998 | Englert Mark H | A Process Is Described For Making A Gypsum Board Having Improved Water Resistance The Resulting Gypsum Board Products Are Also Described The Process Comprises Adding An Aqueous Siloxane Emulsion To An Aqueous Slurry Of A Calcium Sulfate Material And Host Particles, Where The Siloxane Emulsion Is Stable Under The Condition In Which The Slurry Is Maintained The Process Further Includes Passing Said Siloxane Containing Slurry Onto A Flat Porous Forming Surface To Form A Filter Cake; Removing A Substantial Portion Of The Water From The Filter Cake Through The Porous Surface; Pressing The Filter Cake To Form A Board And Remove Additional Water; And Drying The Board To Remove The Remaining Free Water And To Cause The Core Of The Board To Reach A Temperature Sufficient To Cure The Siloxane |
| 5,901,912 | Efficient Production Of Landplaster By Collecting And Classifying Gypsum Fines | 5/11/1999 | Voorberg, Dennis B. | A Landplaster Production Method Includes The Steps Of Providing A Supply Of Particulate Gypsum Material, Drying The Gypsum Material By Passing A Stream Of Heated Air Thereby As The Material Is Rotated, Classifying And Separating The Dried Particles Into Fines And Coarse Particles, Collecting The Suspended Fines In A Collector, Passing The Coarse Particles To A Grinder Such As A Roller Mill For Reducing The Particles, And Mixing The Reduced Particles With The Collected Fines For Processing Into Landplaster The Elimination Of Fines From The Feed To The Grinder Results In Significantly Greater Production By Increasing The Efficiency Of The Grinder Further, The Dryer Is Modified To Agitate The Dried Gypsum Material So That It May Be More Easily Introduced Into The Classifier/Separator Situated Adjacent The Drier Discharge Outlet |
| 5,911,818 | Acoustical Tile Composition | 6/15/1999 | Baig Mirza A | A Composition Suitable For Making Acoustical Tiles In A Water-Felting Process Comprises Expanded Perlite, Clay, A Binder Component Selected From The Group Consisting Of Starch, Latex, Cellulosic Fiber And Mixtures Thereof And Optionally Mineral Wool The Use Of An Expanded Perlite Having A Relatively High Density, Preferably Between About 9 Pounds Per Cubic Foot To About 20 Pounds Per Cubic Foot, Enables The Formation Of A Suitable Slurry With A Relatively Low Amount Of Water And Enables A More Complete Dewatering Of The Mat Prior To Drying |
| 5,922,447 | Lightweight Gypsum Board | 7/13/1999 | Baig Mirza A | A Lightweight Gypsum Board Is Provided, Including, By Dry Weight, Gypsum As The Largest Single Ingredient, Perlite As The Second Largest Single Ingredient, And Starch As A Minor Ingredient, In The Board The Starch May Be Pre-Cooked Prior To Mixing, And Is Dispersed In The Core Of The Board To Act As A Binder For Binding The Gypsum To The Perlite Gypsum Board Made According To The Invention Is Lighter In Weight, Yet Has A Comparable Nail Pull Value To Conventional Wallboard |
| 5,927,968 | Apparatus For Continuous Refractoryless Calcining Of Gypsum | 7/27/1999 | Rowland, George E. ; Cloud, Michael L. ; Milligan, Daniel J. | A Method And Apparatus Is Disclosed For The Continuous Calcining Of Gypsum Material In A High-Efficiency, Refractoryless Kettle Preferably Heated By A Multiple Series Of Separate Immersion Tube Burner Coils, Each Coil Operating Within A Specific Calcining Zone Inside The Kettle The Lowest, Ie, Initial, Burner Tube Coil Is Formed With A Low Profile To Permit Use Of A Small Initial Gypsum Charge, And Hence, A Quick Kettle Start-Up Cycle That Low Profile Initial Burner Design Also Helps Keep The Agitator Motor's Load At A Minimum During Cycle Start-Up Due To The Immersion Tube Burner Coil Construction, No Refractory Structure For The Kettle Is Required Also, No Separate Hot Pit Structure Is Required, As The Kettle Is Used To Merely Hold The Material Being Calcined And No Residual Heat Is Present A Relatively Thin Kettle Can Be Constructed, As It Need Only Withstand Relatively Low Operating Temperatures The Kettle's Staged, Interiorly-Disposed Burner Tube Coils Act To Directly Transfer Burner Tube Heat To The Kettle's Contents, And The Coils Exhaust Exteriorly Of The Kettle The Present Calcining Method And Apparatus Permits Substantially Improved Tonnage Output Of Calcined Material, For A Kettle Of A Given Size A Modification To The Present Apparatus Includes Structure For Recovering And Recycling A Portion Of The Spent Burner Gases, And Also Separate Structure For Forced Aeration Air, Both Preferably For Introduction Through The Kettle Bottom PAL One Alternate Embodiment Concerns A Differently-Shaped Kettle Design Another Alternate Embodiment Concerns A Modified Kettle Which Uses A Single Immersion Burner Tube Coil To Provide The Total Heating Of The Kettle's Contents, For Use In Certain Calcining Applications |
| 5,932,019 | Method For Cleaning And Minimizing The Buildup Of Set Gypsum | 8/3/1999 | Espinoza, Therese A. ; Stevens, Richard B. ; Miller, Charles J. ; Failmezger, Friedrich | The Present Invention Relates To A Method For Minimizing The Buildup Of Set Gypsum On A Tool Used To Apply A Calcium Sulfate Hemihydrate-Containing Composition To A Surface As Well As To A Method For Cleaning A Tool Having Set Gypsum Deposited Thereon The Method For Cleaning A Tool Having Set Gypsum Deposited Thereon Comprises The Steps Of (A) Contacting The Tool With A Cleaning Solution Having A Ph Of Less Than About 7, Said Cleaning Solution Which Comprises A Non-Calcium Phosphate, Water, And, Optionally, A Ph Modifier; (B) Optionally Agitating The Solution; (C) Removing The Tool From The Cleaning Solution; And (D) Rinsing The Tool With Water The Method For Minimizing The Buildup Of Set Gypsum On A Tool Further Comprises Step (E) Using The Tool To Apply A Calcium Sulfate Hemihydrate-Containing Composition An Additional Step (F), Flushing The Tool With Water, May Also Be Employed Optionally, Steps (A) Through (E) Or (A) Through (F) May Be Repeated During The Application Of The Calcium Sulfate Hemihydrate-Containing Composition Examples Of Non-Calcium Phosphates Which May Be Used In The Cleaning Solution Are Sodium, Potassium, Or Ammonium Salts Such As Tetrasodium Pyrophosphate, Tetrapotassium Pyrophosphate And Sodium Tripolyphosphate |
| 5,937,605 | Adjustable Face Trim Clip For Drywall Suspension Grid | 8/17/1999 | Wendt, Alan C. | The Present Invention Is A Clip Used In The Construction Of Suspension Grid Ceilings That Are Either Island Ceilings Or Ceilings Having Floating Edges The Clip Provides A Versatile Means For Attaching Face Trim, Such As COMPASSOTM Trim, To The Ceiling Edge Created By The Suspended Grid Beams The Clip Mounting Can Be Vertically Adjusted So That The Typical Trim Problems Of Gaps Or Inconsistencies Between The Face Trim And The Horizontal Ceiling Panels May Be Eliminated Without Resorting To Traditional Finishing Procedures The Same Clip May Be Used In Several Different Mounting Situations Involving The Grid Beam Arranged To The Trim At Angles Ranging From Parallel To Orthogonal |
| 5,945,198 | Coated Wallboard Employing Unbleached Face Paper Comprising A Coating Containing Soy Protein | 8/31/1999 | Deodhar Subhash S; Haugeberg Thomas M; Hill Claudia B; Houman Thomas G; Negri Robert H | A Coating For Providing A Cover Sheet Used In The Manufacture Of Wallboard With A Light Colored Finish Without The Use Of Manila Top Plies Is Disclosed The Coating Has A Porosity Adapted To Allow Evaporation Of Moisture From The Wallboard Core Through The Cover Sheet, And Maintain A Desired Smooth Appearance A High Pigment-To-Binder Ratio Is Used To Provide Porosity, With Soy Protein Being Added To Further Enhance The Porosity Of The Coating The Coating May Be Applied Through Various Conventional Methods Of Coating Paper Such As Roll, Spray, Curtain, Rod And Vacuum |
| 5,954,497 | Method For Multi-Stage Calcining Of Gypsum To Produce An Anhydrite Product | 9/21/1999 | Cloud, Michael L. ; Moore, Kirk S. | A Method And System For Calcining Gypsum To Recover Gypsum In A Form Consisting Essentially Of Calcium Sulfate Anhydrite Is Disclosed The Method Includes The Steps Of Feeding The Ground Gypsum Material Into A First Kettle And Heating The Ground Gypsum In The First Kettle To The First Predetermined Temperature The First Predetermined Temperature Is Preferably Below 400degree F So That The Gypsum Will Still Contain A Sufficient Amount Of Chemically-Combined Water So That It Will Self-Fluidize By Release Of Water Vapor So That It Will Flow Through The Apparatus The Ground Gypsum Is Then Overflowed Through At Least One Subsequent Stage And Heated To A Final Predetermined Temperature To Produce An Anhydrite Product To Produce Insoluble Calcium Anhydrite Or Dead Burn Material, The Final Predetermined Temperature Is Greater Than 900degree F And Preferably Within The Range Of About 900degree F-1300degree F In The Subsequent Stages, The Gypsum Powder Is Heated And Simultaneously Fluidized With A Fluidizing Media, Preferably Air, So That The Ground Gypsum Will Flow Through The Apparatus In The Preferred Embodiment, The Ground Gypsum Is Fluidized By A Plurality Of Mixing Blades Having Air Injection Pipes Along Their Breaking Edges For Injecting Air Into The Gypsum And A Plurality Of Air Injection Nozzles Disposed Radially About A Periphery Of The Kettles The Fluidization Of The Ground Gypsum In The Subsequent Stages Ensures That It Will Flow Through The Apparatus For Production Of An Anhydrite Product |
| 5,964,934 | Acoustical Tile Containing Treated Perlite | 10/12/1999 | Englert Mark H | A Composition Suitable For Making Acoustical Tiles In A Water-Felting Process Comprises Expanded Perlite, Cellulosic Fiber, And, Optionally, A Secondary Binder And Mineral Wool The Perlite Has Been Treated To Reduce Its Water Retention |
| 6,010,596 | Gypsum Wood Fiber Product Having Improved Water Resistance | 1/4/2000 | Song Weixin | An Improved Water Resistant Gypsum Board Is Made By Adding An Aqueous Wax Emulsion Containing A Cationic Surfactant To An Aqueous Slurry Containing Calcium Sulfate And Host Particles At A Slurry Temperature Which Maintains Calcium Sulfate Hemihydrate Crystals The Wax Emulsion Is Stable At The Temperature Of Slurry Which Maintains The Calcium Sulfate Hemihydrate The Slurry Is Then Dewatered And Rehydrated To Form A Gypsum Board And Dried At A Temperature To Melt The Wax |
| 6,018,923 | Transition Clip For Drywall Suspension Grid | 2/1/2000 | Wendt, Alan C. | The Present Invention Is A Clip Used In The Construction Of Suspended Ceiling Grid Systems For The Hanging Of Drywall Or Other Panels The Clip Provides A Versatile Means Of Joining Two Suspended Grid Beams At Points Of Transition In The Ceiling Surface In Many Different Intersecting Orientations, Thus Eliminating The Need For A Different Means Of Joining In Each Situation |
| 6,035,876 | Free-Standing Ceiling | 3/14/2000 | Stover, David R. ; Seymour, Merritt W. ; Surra, Robert J. ; Wendt, Alan C. ; Lindby-Young, Merle | A Free-Standing Ceiling Structure Including An Elongate Column Member Having A Bottom End And A Top End A Plurality Of Primary Arms Are Attached To The Column Member And Extend Radially Therefrom Each Primary Arm Includes First And Second Sub-Arms Extending Outwardly Therefrom A Pair Of Peripheral Panel Members Are Respectively Attached To And Supported By A Primary Arm And By The Sub-Arms Attached To The Primary Arm A Plurality Of Central Canopy Members Are Attached To And Supported By The Primary Arms A Plurality Of Secondary Arms Extend Radially From The Column Member And Are Located Below The Primary Arms The Outer End Of Each Secondary Arm Includes A Light Fixture The Column Member Includes One Or More Utility Devices For Providing Environmental Control And Communication Services |
| 6,041,564 | Clinched Double Web Grid Tee | 3/28/2000 | Shirey Richard | A Grid Tee Of The Double-Web Type In Which The Elements Of The Web Are Tied Together By A Plurality Of Clinched Openings Spaced Apart Along The Length Of The Grid Tee The Clinched Openings Are Sized And Shaped For Receiving Wires Which Support The Grid Tee From A Superstructure Of A Building The Clinched Openings Are Created In Sequential Operations Of Punching Holes Through The Web Elements, Extruding Edge Portions Of The Web Elements About The Punched Holes, And Rolling-Over The Extruded Edge Portions To Clinch The Web Elements Together |
| 6,047,511 | Grid Tee With Integrally Stitched Web | 4/11/2000 | Lehane, James J. ; Hooper, Douglas B. | A Grid Tee Of The Double Web Type In Which The Elements Of The Web Are Integrally Stitched Together To Prevent Their Separation The Stitches Are Created In An Inexpensive Rolling Process That Does Not Require Control Of The Position Of The Stitches Relative To The Ends Or Other Parts Of The Tee According To The Invention, After The Stitches Are Formed And Locked, They Are Flattened Back Into The Plane Of The Web To A Limited Degree Where They Do Not Substantially Increase The Thickness Of The Web So That They Do Not Interfere With Subsequent Manufacturing Steps Or With Field Assembly |
| 6,047,512 | Drywall Suspension Grid System | 4/11/2000 | Wendt Alan C; Willey David A | A Drywall Suspension Grid System Comprising A Selection Of Various Sized And Specified Pre-Formed And Pre-Engineered "T" Grid Beams And Components Used To Construct A Grid Having A Grid Face Upon Which Drywall Is Mounted, Thus Creating A Suspended Drywall Ceiling The Suspension Grid System Can Be Used To Create Flat Ceilings, Curved Ceilings, Soffits, Fascia For Floating Edge Ceilings, Utility Interfaces, Or Any Combination Thereof In A Suspended Grid Drywall Ceiling |
| 6,059,444 | Apparatus For Mixing Calcined Gypsum And Its Method Of Operation | 5/9/2000 | Johnson, Steven Burdett ; Whittington, Charles Allen ; Fullmer, Lyle Dee | This Invention Provides A Method And Apparatus For Mixing Calcined Gypsum The Invention Comprises A Mixer Which Employs High Pressure Water To Eliminate Or Substantially Reduce The Formation Of Lumps Of Gypsum Inside The Mixer Which Cause Paper Breaks When The Calcined Gypsum Slurry Containing The Lumps Is Used To Form The Gypsum Core In A Gypsum Wallboard Product High Pressure Water Jets Direct A Spray Of High Pressure Water At The Surfaces Within The Mixer Where The Lumps Of Gypsum Are Formed The Method Of This Invention Utilizes The High Pressure Water As Part Of The Metered Water That Is Continuously Fed To The Mixer, With The Balance Of The Water Being Fed Through Low Pressure Nozzles |
| 6,131,348 | Trim With Tearaway Masking Strip | 10/17/2000 | Dunham Wesley H | A Trim Strip Has An Angle Strip With Flanges Meeting At An Elbow And Is Covered With A Paper Strip Having A Tearaway Wing Extending Laterally Beyond One Of The Flanges At A Line Of Perforations. The Wing Can Be Folded Back At The Perforations Over The Adjacent Flange To Project Away From The Elbow To Provide A Masking Portion Which Can Be Severed At The Perforations By Pulling On The Masking Portion After The Masking Need Is Satisfied. |
| 6,138,377 | Apparatus And Process For Cooling And De-Steaming Calcined Stucco | 10/31/2000 | Bolind, Michael L. ; Porter, Michael J. | The Present Invention Is An Apparatus And Process For Cooling And De-Steaming Hot Calcined Stucco Used In The Production Of Gypsum Boards Or Bagged Plaster The Apparatus Is A Fluid Bed Stucco Cooler And Comprises A Cooler Housing Having A Plenum With Two Chambers, A First Chamber Having A Stucco Inlet And A Second Chamber Having A Stucco Outlet The Stucco Cooler Includes Cooling Coils That Are Located Within The Plenum And A Fluidization Pad Positioned Through The Fluidization Pad Help To Mix The Air And The Stucco Powder To Insure Fluidization, Prevent Channeling, And Prevent The Stucco Powder From Building Up On The Cooling Coils The Air Also Forces Steam From The Hot Calcined Stucco Out Through An Air Outlet Located At The Top Of The Stucco Cooler, Thereby De-Steaming The Stucco The Stucco Flows Through The Plenum And Passes Over The Cooling Coils, Thereby Cooling The Stucco As It Reaches The Stucco Outlet |
| 6,138,425 | Splice Clip For Drywall Suspension Grid | 10/31/2000 | Wendt, Alan C. | The Present Invention Is A Clip Used In The Construction Of Suspended Ceiling Grid Systems For The Hanging Of Drywall Or Other Panels The Clip Provides A Versatile Means Of Joining Two Suspended Grid Beams At Various Points Of Transition Between Two Grid Beams, Such As A Transition In The Ceiling Surface, Thus Eliminating The Need For A Different Means Of Joining In Each Situation |
| 6,153,040 | Gypsum Board Paper That Reduces Roll Up During Lamination, And Board Comprising Such Paper | 11/28/2000 | Rohlf Evan V; Engbrecht Dick C; Scalf Mark B | A Process For Reducing Rollups In Gypsum Board Panels When The Panels Are Laminated With A Laminate, Is Provided A Laminator Is Provided, As Is At Least One Gypsum Board Panel, Each Panel Having A Face Paper Layer And A Backing Paper Layer Each Paper Layer Has A Coefficient Of Friction, And At Least One Of The Face Paper Layer And The Backing Paper Layer Is Treated With An Agent For Reducing The Coefficient Of Friction And Water Absorbency Next, A Supply Of Laminate Is Provided And Installed In The Laminator Then, At Least One Panel Of The Gypsum Board Is Fed Through The Laminator, So That A Layer Of The Laminate Is Applied Thereon |
| 6,197,235 | Method Of Manufacture For Textured Surface Panels And Panel Products Made Therefrom | 3/6/2001 | Miller, David Paul; Huss, Matthew | An Improved Method For Texturing Gypsum Fiber Panels And Producing Surface Textured Panels, Edge Tapers, And Deeper Patterned Wainscot-Type Panels, Involving The Use Of A Flexible Die With A Textured Surface The Die Is Pressed Onto The Panel In Its Slurry State Just After The Onset Of An Exothermic Rehydration Reaction Partial Hydration And Setting Occur During Pressing By The Die To Form A Textured Mat The Mat Is Removed From Contact With The Die At A Point Along The Rehydration Temperature Curve About At Or Less Than One-Half Of The Rise To The Greatest Rehydration Temperature |
| 6,205,733 | Direct Mount Ceiling Panel Grid System | 3/27/2001 | Lalonde, Paul Dennis | A Direct Mount Ceiling Grid System Comprising A Plurality Of Base Grid Members, Cross Grid Members, And Channel Grid Members For Mounting Ceiling Panels Close To A Mounting Surface The Base Grid Members Are Elongated T-Shaped Beams Having A Base Flange And A Transversely Extending Web Having A Thicker Bulb Portion At Its Marginal End The Base Flange Of Each Base Grid Member Is Directly Mounted To A Mounting Surface The Channel Grid Members Are Elongated Beams Having Two Parallel Transversely Extending Webs Forming A Channel Therebetween Upon Installation Of Ceiling Panels, The Channel Of The Channel Grid Members Removably Engage The Bulb Portion Of The Transversely Extending Web Of The Base Grid Members The Channels Have Hook Portions Of The Parallel Webs Of The Channel Grid Members And Deflect To Allow Capture Of The Bulb Portion The Base Flange Of The Base Grid Members And The Base Flange Of The Channel Grid Members Capture The Ceiling Panels Placed Therebetween The Ceiling Panels Are Also Supported By The Base Flange Of One Or More Cross Grid Members |
| 6,217,946 | Method For Applying Polymeric Diphenylmethane Diisocyanate To Cellulose/Gypsum Based Substrate | 4/17/2001 | Bolind, Michael L.; Porter, Michael J.; Scalf, Mark B. | The Disclosed Invention Consists Of A Means For Conveying A Gypsum Or Gypsum/Cellulose Fiber Board To A Rotary Cylinder Brush Station Where Pmdi Resin Is Delivered Onto The Rotary Cylinder Brush Just As The Board Passes Under The Brush A Resin Distribution System Is Used To Coat The Rotary Cylinder Brush Applicator With Pmdi Optionally, A Second Rotary Cylinder Brush Station Is Included, If Desired, To Smooth Out And Spread The Pmdi Resin Over The Surface Of The Gypsum Board Substrate To Achieve Complete Coverage |
| 6,221,521 | Non-Combustible Gypsum/Fiber Board | 4/24/2001 | Lynn, Michael R.; Blaine, Steven | A Non-Combustible Gypsum/Fiber Board Comprises Two Surface Layers And At Least One Core Layer, Wherein The Surface Layers Comprise A Gypsum Composition That Is Reinforced With Organic Fibers, And The Core Layer Comprises A Gypsum Composition Containing No More Than About 3% By Weight Of Organic Materials |
| 6,223,486 | Adjustable Corner Trim Strip | 5/1/2001 | Dunham, Wesley H. | A Corner Trim Strip For Drywall Construction Has A Pair Of Parallel Spaced Core Strips And A Center Bead Bonded To A Paper Cover Strip So That The Trim Strip Has A Center Rib And Is Adjustable At The Rib Between Obtuse And Acute Dihedral Angles. |
| 6,228,163 | Clay-Free Ready-Mixed Setting-Type Joint Compound | 5/8/2001 | Espinoza, Therese A.; Miller, Charles J.; Stevens, Richard B. | A Two Part Joint Compound Which Sets By Hydration Of Calcium Sulfate Hemihydrate To Gypsum And Is Clay-Free One Part Includes An In-Situ Acidic Acrylate Copolymer Thickener (Ie, An Associative Thickener) With The Calcium Sulfate Hemihydrate, Along With A Non-Calcium Bearing Phosphate Set Preventer The First Part Contains Water, But Remains Unset For At Least 175 Days The Second Part Includes A Set Initiator Compound Having A Cation With A Log K Value Greater Than Calcium Ions The Second Part Is Mixed With The First Part When Setting Is Desired |
| 6,228,497 | High Temperature Resistant Glass Fiber Composition And A Method For Making The Same | 5/8/2001 | Dombeck, Russell Allen | A High Temperature Resistant Glass Fiber Composition Consists Essentially Of Glass Fibers Having A Nominal Softening Point Of About 1000 F (About 538 C) Which Is Capable Of Passing The British Standard 476 Part 4 Fire Test For Building Materials The BS476-4 Test Begins At 750 C, Substantially Above The Nominal Softening Point Of The Glass Fibers The Increased Temperature Resistance Is Provided By Coating The Glass Fibers With A Halogenated Resin Latex Binder And A Calcium Carbonate Material The Method Of Making The Glass Fiber Composition Comprises Depositing The Resin Latex And A Calcium Carbonate Material On The Glass Fibers Using A Cationic Flocculent The Preferred Halogenated Resin Latex Binder Is Selected From Polyvinyl Chloride And Polyvinylidene Chloride |
| 6,233,890 | Drainable Sheathing Membrane For Exterior Wall Assembly Water Management System | 5/22/2001 | Tonyan, Timothy D. | An Exterior Wall Assembly Water Management System That Includes Flashing, A Drainable Weather-Resistive Membrane, Exterior Cladding, A Basecoat And An Exterior Finish The Basecoat And The Exterior Stucco Finish Are Applied To The Outer Surface Of The Exterior Cladding, Or In The Alternative To An Insulation Layer The Disclosed Water Managed Exterior System Efficiently Directs Any Penetrating Water To Weeps, Or The Like, By Providing A Water Drainage Medium Between The Weather-Resistive Membrane And The Exterior Cladding The Water Drainage Medium Is Embossed Upon The Outer Surface Of The Weather-Resistive Membrane, Creating A Drainage Space Between The Membrane And The Cladding The Unwanted Water Drains Downwards Via The Drainage Space, Is Caught At The Base Of The Wall By The Flashing, And Is Further Drained Outside Of The Wall Cladding |
| 6,241,815 | Gypsum-Cement System For Construction Materials | 6/5/2001 | Bonen, David | A Composition For Use In Construction Materials, Which May Be Substituted For High Performance Concrete, Patching Materials, Joint Compounds, And The Like, Such As Backer Boards Or Panels, Which Includes A Settable Calcium Sulfate, Preferably A Hemihydrate, Portland Cement, A Finely Divided Pozzolanic Material, Lime, And An Aggregate, Optionally Including Other Additives The Volume Ratio Of The Aggregate To The Combined Calcium Sulfate, Portland Cement, Pozzolanic Material, And Lime (A Cementitious Binder) Is Equal To Or Greater Than 2/1 Panels Made From This Composition Are Useful, Particularly When Exposed To Water Since They Have Good Dimensional Stability |
| 6,260,325 | Suspended Concealed Grid Accessible Ceiling System | 7/17/2001 | Wendt, Alan C.; Stover, David R.; Koski, Gerald L. | A Suspended Ceiling System In Which The Grid Runners Are Largely Concealed By The Panels To Produce A Distinctive High Quality Appearance In Various Illustrated Embodiments, The Visual Effect Is Produced As A Result Of The Panels Being Separated By A Relatively Narrow Gap In Two Perpendicular Directions Or By A Narrow Gap In One Direction And Essentially No Gap In The Perpendicular Direction, And The Grid Being Recessed Above The Main Face Of The Panels The Panels Are Accurately Positioned On The Grid By Metal Clips, Normally Permanently Attached To The Panels, Which Engage Upstanding Flange Portions Of The Grid Runners The Accurate Positioning Afforded By The Clips Assures That Visually Distracting Variations In The Size Of The Narrow Gaps Are Avoided The Clips Can Also Serve To Avoid Accidental Dislodging Of The Panels |
| 6,268,042 | High Strength Low Density Board For Furniture Industry | 7/31/2001 | Baig, Mirza A. | A High Strength, Low Density Fiber Board Panel For Use In The Furniture Industry Is Provided, Including Mineral Wool, A Lightweight Aggregate Material, Cellulosic Fiber, A Binding Agent And Gypsum The Mineral Wool Makes Up Approximately 0% To 33%, The Lightweight Aggregate Material Approximately 25% To 41%, The Cellulosic Fiber Approximately 20% To 35%, The Binding Agent Approximately 5% To 9%, And The Gypsum Approximately 0% To 23%, Of The Dry Solids Weight Of The Panel |
| 6,273,345 | High Performance Slurry Spray Machine | 8/14/2001 | Kaligian, Ii, Raymond A.; Messer, James E.; Immordino, Salvatore C.; Porter, Michael J.; Rector, William G.; Ross, Timothy | A Slurry Spray Machine For Spraying A Settable Slurry Includes A Main Passageway Configured For Receiving A Supply Of Pressurized Slurry And Having A Supply End And An Outlet End Opposite The Supply End A First Compressed Gas Inlet Is Disposed Intermediate The Supply And Outlet Ends And In Fluid Communication With The Passageway For Introducing A First Supply Of Pressurized Gas Into The Slurry, And A Second Pressurized Gas Inlet Is Disposed Closer To The Outlet End Than The First Inlet And In Fluid Communication With The Passageway For Introducing A Second Supply Of Pressurized Gas Into The Slurry A Pressurized Supply Of Adjuvant Is Provided In Fluid Communication With The Second Pressurized Gas Inlet For Providing A Blended Gas To The Second Gas Inlet At Least One Valve Is Provided For Controlling The Flow Of Slurry Through The Passageway And The Flow Of The First And Second Gases Into The Passageway Prior To The Pressurized Ejection Of The Slurry From The Outlet End, The First Gas Is Injected Into The Slurry, And The Blended Gas Is Mixed With The Slurry And The First Pressurized Gas Between The First Gas Inlet And The Outlet End |
| 6,298,623 | Adjustable Trim Strip System | 10/9/2001 | Wendt, Alan C. | This Invention Is Directed To A Stand-Alone Adjustable Trim Strip System That Can Be Used For The Attachment Of Lighting And Signs The Trim Strip System Is Designed To Conceal Hardware Used For Attaching Lighting And Signs And Also Provides For A System That Can Be Adapted To Accommodate Architectural Design The System Has The Capability Of Being Suspended From The Structure Of A Building By Wires Or Rods Or Can Be Affixed To Walls Or Ceilings By Using Fasteners The System Is Comprised Of One Or More Trim Strips And Brackets That Can Be Shaped Into Different Polymeric Shapes Or Can Be Arranged In A Grid Format The System Has The Ability To Attach Electric Lighting And Signs While Providing For An Aesthetically Pleasing Structure |
| 6,342,284 | Gypsum-Containing Product Having Increased Resistance To Permanent Deformation And Method And Composition For Producing It | 1/29/2002 | Yu, Qiang; Sucech, Steven W.; Groza, Brent E.; Mlinac, Raymond J.; Jones, Frederick T.; Henkels, Paul J. | The Invention Provides A Set Gypsum-Containing Product Having Increased Resistance To Permanent Deformation And A Method For Preparing It Comprising Forming A Mixture Of A Calcium Sulfate Material, Water, And An Appropriate Amount Of One Or More Enhancing Materials Chosen From Condensed Phosphoric Acids, Each Of Which Comprises 2 Or More Phosphoric Acid Units; And Salts Or Ions Of Condensed Phosphates, Each Of Which Comprises 2 Or More Phosphate Units The Mixture Is Then Maintained Under Conditions Sufficient For The Calcium Sulfate Material To Form A Set Gypsum Material |
| 6,355,099 | Plaster Mixture For Forming A Machinable Composition | 3/12/2002 | Immordino, Salvatore C.; Kaligian, Ii, Raymond A. | A Plaster Mixture For Forming A Machinable Composition, Includes Calcium Sulfate Hemihydrate; An Internal Lubricating Dispersible Binder, And An Adhesive Binder For Adhering The Plaster Mixture To A Substrate In The Preferred Embodiment, The Composition Includes Calcium Sulfate Hemihydrate, A Poly(Ethylene Glycol) Internal Binder, And An Ethylene/Vinyl Acetate Copolymer Adhesive Binder |
| 6,374,564 | Suspended Curved Ceiling System | 4/23/2002 | Fletterick, James A.; Likozar, Martin E. | A Suspended Three-Dimensional Ceiling System Of Improved Appearance And Performance That Includes Closely Dimensioned Main Tees And Lay-In Panels The Main Tees Have Opposed Vertical Surfaces Adapted To Abut The Edges Of The Panels To Avoid Any Noticeable Non-Parallelism Between The Main Tees And/Or Panels The Vertical Surfaces Are Provided By A Protrusion At The Juncture Between A Panel Supporting Flange And A Vertical Stem Of The Main Tee The Protrusion Allows The Panels To Be Dimensioned To Avoid Undue Interference With A Stiffening Bulb On The Upper Part Of The Stem And Provides An Attractive Reveal On The Visible Face Of The Flange |
| 6,379,458 | Efficient Set Accelerator For Plaster | 4/30/2002 | Immordino, Salvatore C.; Espinoza, Therese; Stevens, Richard B.; Miller, Charles J. | A Set Accelerator For At Least One Of Accelerating The Hydration Rate And Reducing The Set Time Of An Aqueous Slurry Of Calcium Sulfate Hemihydrate Is Described The Set Accelerator Consists Of A Mixture Of Ground Calcium Sulfate Dihydrate And Zinc Sulfate Material Aluminum Sulfate Material Is An Optional Component Of The Set Accelerator The Set Accelerator Is Particularly Useful In Accelerating The Hydration Rates Of Sprayable Plasters A Fluid Form Of The Set Accelerator May Be Made By Suspending The Solids In Water The Fluid Form Is Advantageously Used In Ready Mixed Setting Type Joint Compounds |
| 6,387,172 | Gypsum Compositions And Related Methods | 5/14/2002 | Yu, Qiang; Veeramasuneni, Srinivas; Jones, Frederick Thomas | A Set Gypsum Composition And Methods For The Preparation Thereof Are Disclosed The Set Gypsum Composition Comprises A Continuous Phase Of Interlocking Set Gypsum Matrix Having An Enhanced Water Voids Volume And/Or Is Prepared From A Mixture (Eg, Slurry) Comprising An Elevated Ratio Of Water To Calcined Gypsum Also Disclosed Is An Article Comprising The Set Gypsum Composition |
| 6,398,864 | Pottery Plaster Formulations For The Manufacture Of Plaster Molds | 6/4/2002 | Przybysz, Andrzej A.; Grussing, Jeffrey F.; Immordino, Salvatore C. | A Plaster Composition For Making Molds For Reproduction By Casting Is Disclosed Calcium Sulfate Hemihydrate, Potassium Sulfate And Potassium Sodium Tartrate Are Mixed Together The Potassium Sulfate And Potassium Sodium Tartrate Are In A Ratio Of From About 1:1 To About 10:1 Potassium Sodium Tartrate Is Present In An Amount Of From About 1 To About 10 Pounds Per Ton Of Dry Calcium Sulfate Hemihydrate, And The Total Of The Potassium Sulfate And Potassium Sodium Tartrate Is From About 2 To About 35 Pounds Per Ton Of Calcium Sulfate Hemihydrate Methods Of Making And Using Molds Of This Composition Are Also Disclosed |
| 6,406,537 | High-Strength Joint Compound | 6/18/2002 | Immordino, Salvatore C. | A Composition Comprising Calcined Gypsum, Trimetaphosphate Ion, And A Water-Soluble Linear Polymer Formed By The Addition Reaction Of Ethylene Oxide And/Or Alkoxy-Substituted Ethylene Oxide With Water, Having Enhanced Strength When Set And Exhibiting High Plasticity And Workability Such That It Readily Can Be Applied To A Substrate, Is Disclosed |
| 6,406,779 | Gypsum/Fiber Board With Improved Surface Characteristics | 6/18/2002 | Carbo, Adelaida L.; Attard, Peter M. | A Paperless Gypsum/Fiber Board With Improved Surface Characteristics Has At Least One Surface Comprising A Combination Of Fully Hydrated Gypsum And Reinforcing Fiber And Has Been Coated With A Primer Comprising An Aqueous Emulsion Of A Film-Forming Polymeric Material |
| 6,409,823 | Hydration Enhancing Additives | 6/25/2002 | Shake, Michael Patrick; Immordino, Salvatore C.; Wittbold, James R. | An Additive For Accelerating The Setting Reaction Of Gypsum Products Is Disclosed It Comprises A Gypsum Accelerator Combined With A Bisulfate Salt The Gypsum Accelerator Is Calcium Sulfate Dihydrate The Accelerator May Optionally Be Ground With A Sugar, A Starch And/Or Boric Acid A Process Utilizing This Additive Combination Is Also Disclosed The Bisulfate Salt Is Most Advantageously Prewet With A Portion Of The Calcium Sulfate Hemihydrate Feed Before Being Combined With The Gypsum Accelerator, Water And The Remaining Portion Of The Calcium Sulfate Hemihydrate Feed In The Main Mixer |
| 6,409,824 | Gypsum Compositions With Enhanced Resistance To Permanent Deformation | 6/25/2002 | Veeramasuneni, Srinivas; Yu, Qiang; Shake, Michael P. | A Set Gypsum-Containing Composition Is Disclosed In One Aspect, The Set Gypsum-Containing Composition Includes An Interlocking Matrix Of The Set Gypsum Formed From At Least Calcined Gypsum, Water, And An Enhancing Material The Enhancing Material Can Be Selected From (I) An Organic Polyphosphonic Compound, Or A Mixture Thereof; (Ii) A Borate Selected From Ulexite Colemanite, Or A Mixture Thereof; Or A Mixture Of (I) And (Ii) In Another Aspect, The Set Gypsum-Containing Composition Is Treated With An Enhancing Material Which Can Be Selected From (I) An Organic Phosphonic Compound Or A Mixture Thereof; (Ii) A Borate Selected From Ulexite, Colemanite, Or A Mixture Thereof; (Iii) A Carboxylic Compound Or A Mixture Thereof; Or A Mixture Of (I), (Ii) And/Or (Iii) |
| 6,409,825 | Wet Gypsum Accelerator And Methods, Composition, And Product Relating Thereto | 6/25/2002 | Yu, Qiang; Veeramasuneni, Srinivas | A Wet Gypsum Accelerator Comprising Particles Of Calcium Sulfate Dihydrate, Water, And At Least One Additive Selected From The Group Consisting Of (I) An Organic Phosphonic Compound, (Ii) A Phosphate-Containing Compound, Or (Iii) A Mixture Of (I) And (Ii), Is Disclosed Also Disclosed Are A Method Of Preparing A Wet Gypsum Accelerator, A Method Of Hydrating Calcined Gypsum To Form An Interlocking Matrix Of Set Gypsum, A Set Gypsum-Containing Composition, And A Set Gypsum-Containing Product |
| 6,410,118 | Water Durable Board For Exterior Wall Assembly Water Management System | 6/25/2002 | Reicherts, James; Tonyan, Timothy; Lankford, John; Kenny, Timothy | An Exterior Wall Assembly Water Management System That Provides The Designer And Building Owner With The Popular Esthetics Of Synthetic Stucco And The Long-Term Reliability Of Water Management The Water Managed Exterior System Includes Flashing, A Weather-Resistive Barrier, A Water Durable Board, A Basecoat And An Exterior Finish Either The Water Durable Board, Or An Insulation Layer Secured To The Water Durable Board, Forms The Exterior Cladding Of The Building Structure, And The Basecoat And The Exterior Stucco Finish Are Applied To The Outer Surface Of The Water Durable Board, Or In The Alternative To The Insulation Layer The Disclosed Water Managed Exterior System Efficiently Directs Any Penetrating Water To Weeps, Or The Like, By Providing A Water Drainage Medium Between The Weather-Resistive Barrier And The Water Durable Board The Unwanted Water Drains Downwards Via The Drainage Medium, Is Caught At The Base Of The Wall By The Flashing, And Is Further Drained Outside Of The Wall Cladding |
| 6,413,376 | Headbox For Gypsum/Fiber Board Production | 7/2/2002 | Miller, David Paul | A Headbox For Use In A Water Felting Process Includes A Housing And Two Rotating Horizontal Distribution Rolls The Housing Has Curved Sections Shaped To Conform To The Outer Cylindrical Surface Of The Distribution Rolls, Wherein The Curved Section Is Closely Spaced To A Portion Of The Outer Cylindrical Surface Of Both Distribution Rolls |
| 6,416,695 | Method For Making Smooth Surfaced Gypsum Fiberboard Panel | 7/9/2002 | Miller, David Paul | An Improved Method And Apparatus For Imparting A Smooth Surface To A Gypsum Fiber Panels The Method Involves Imparting Energy To The Surface Of The Slurry As The Slurry Is Dewatered Just Prior To Rehydration The Apparatus Used To Impart The Energy Is An Air Lance Including An Air Source Such As A Blower, A Distribution Manifold And A Plurality Of Nozzles To Direct The Flow Of Air At The Surface Of The Slurry In Operation, The Air Lance Directs A Flow Of Air Against The Surface Of The Slurry The Flow Disrupts The Slurry To A Fraction Of Its Total Depth, Thus Dispersing Clumps Or Flocs Of Crystals In The Depth That Would Give The Surface Of The Finished Panel A Rough Surface If They Were Allowed To Remain |
| 6,443,256 | Dual Layer Acoustical Ceiling Tile Having An Improved Sound Absorption Value | 9/3/2002 | Baig, Mirza A. | An Acoustical Ceiling Tile Having An Improved Sound Absorption Value And Having A Dual Layer Of Acoustical Materials The Base Mat Layer Has Either No Mineral Wool Or A Low Mineral Wool Content The Surface Layer Has A High Mineral Wool Content Which Provides Improved Sound Absorption Values With Or Without Perforating Or Fissuring The Tile The Dual Layer Acoustical Ceiling Tile Has A Noise Reduction Coefficient (NRC) Value Of At Least About 050 |
| 6,446,407 | Grid Tee With Integrally Stitched Web | 9/10/2002 | Lehane, James J.; Hooper, Douglas B. | A Grid Tee Of The Double Web Type In Which The Elements Of The Web Are Integrally Stitched Together To Prevent Their Separation The Stitches Are Created In An Inexpensive Rolling Process That Does Not Require Control Of The Position Of The Stitches Relative To The Ends Or Other Parts Of The Tee According To The Invention, After The Stitches Are Formed And Locked, They Are Flattened Back Into The Plane Of The Web To A Limited Degree Where They Do Not Substantially Increase The Thickness Of The Web So That They Do Not Interfere With Subsequent Manufacturing Steps Or With Field Assembly |
| 6,467,228 | Hinged Ceiling Panel | 10/22/2002 | Wendt, Alan C.; Seymour, Merritt W.; Ahren, Gregory M. | The Invention Is Directed To A Hinged Ceiling Panel, Which Is Pivotally Attached To A Suspended Ceiling Grid Structure To Provide For A Hinged Ceiling Panel That Pivots To Allow Access To The Area Above The Grid The Hinged Ceiling Panel Includes A Hinge Located On A First Edge And Grid-Releasable Flanges Located On The Remaining Edges Of The Panel The Hinged Ceiling Panel Is Designed So That A Single Person Can Easily Release The Panel From The Grid System And Pivot It Downwards Whereby The Hinge Supports It The Hinged Ceiling Panel Is Also Designed So That An Individual Can Also Reposition The Panel Within The Grid Structure Without The Aid Of Others |
| 6,475,313 | Process For Making Gypsum Board Having Improved Through-Penetration Strength | 11/5/2002 | Peterson, Kurt N.; Heschel, Gerry L.; Engbrecht, Dick C.; Jones, Frederick T. | This Invention Relates To A Process For Making Gypsum Board Comprising Feeding A Paper Backing Sheet And A Fiberglass Or Plastic Woven Or Non-Woven Scrim Material In Alignment To A Board Forming Station, Separating The Paper And The Scrim, Feeding A High Density Calcium Sulfate Hemihydrate Slurry Into The Trough Formed Between The Paper And The Scrim, And Subsequently Compressing The Paper And The Scrim Into Contact Whereby The High Density Slurry Is Forced Through The Scrim, Completely Encapsulating The Scrim In The High Density Slurry As A Result Of This Unique Process, Excellent Bond Is Developed Between The Paper, The High Density Gypsum Layer And The Foamed Gypsum Core The Gypsum Board Has Improved Through-Penetration Strength |
| 6,476,099 | Joint Compound Additive For Reduction Of Cracking, Cratering And Shrinkage | 11/5/2002 | Cimaglio, Scott D.; Wawrzos, Frank A.; Miller, Charles J. | A Joint Compound Composition Comprising A Filler, A Binder And A Hydrocarbon Substituted Sulfate, Sulfonate, Sulfuric Acid Or Sulfonic Acid Is Disclosed The Composition Of The Present Invention Produces A Joint Compound That Shrinks Less And Is Resistant To Cracking And Cratering |
| 6,481,171 | Gypsum Compositions And Related Methods | 11/19/2002 | Yu, Qiang; Veeramasuneni, Srinivas; Jones, Frederick Thomas | A Set Gypsum Composition And Methods For The Preparation Thereof Are Disclosed The Set Gypsum Composition Comprises A Continuous Phase Of Interlocking Set Gypsum Matrix Having An Enhanced Water Voids Volume And/Or Is Prepared From A Mixture (Eg, Slurry) Comprising An Elevated Ratio Of Water To Calcined Gypsum Also Disclosed Is An Article Comprising The Set Gypsum Composition |
| 6,489,040 | Wallboard With Improved Roll-Up Resistance | 12/3/2002 | Rohlf, Evan V.; Cochran, Charles W. | A Gypsum Wall Board Is Disclosed In Which At Least One Of The Paper Cover Sheets Is Made With Neutral Size And A Small Amount Of A Cationic Polyamide Resin Is Added To The Stock Used To Make The Cover Sheet The Paper Cover Sheets Provide Improved Resistance To Post-Manufacturing Problems That Involve Delamination, Such As Roll-Up |
| 6,494,609 | Slurry Mixer Outlet | 12/17/2002 | Wittbold, James R.; Duvedi, Amit P.; Hemphill, Mark K.; Fleming, Wayne A.; Pittman, Wilford Gary; Moore, Kirk S.; Nelson, Christopher | An Apparatus And Method For Delivering An Additive-Enhanced Slurry For Use In Making Gypsum Wallboard, And Configured For Connection To A Centrifugal Mixer With A Tangential Discharge Outlet, Includes A Conduit Having A Main Inlet In Slurry Receiving Communication With The Mixer Outlet And Extending To A Discharge Spout For Discharging The Slurry Proximate A Wallboard Forming Area At Least One Volume Restrictor Is Associated With The Conduit For Creating Back Pressure Between The Volume Restrictor And The Outlet For Keeping The Mixer Fill, And At Least One Pressure Reducer Associated With The Discharge Spout And Configured For Reducing The Pressure Of The Slurry Dispensed From The Discharge Spout The Apparatus Is Configured For Maintaining A Generally Laminar Flow From The Mixer Outlet To The Discharge Spout |
| 6,508,895 | Method Of Producing Gypsum/Fiber Board | 1/21/2003 | Lynn, Michael R.; Jones, Frederick T.; Cormier, Gregory J. | A Gypsum/Fiber Board Having Improved Impact Resistance Is Produced By Mixing Predetermined Amounts Of Fibers, Calcined Gypsum And Water To Form A Mixture Of Wetted, Loose Fibers; Laying Out A Reinforcing Mesh Over The Upper Surface Of A Forming Belt; Depositing Said Mixture On Said Mesh To Form A Layer Of Said Mixture, Said; And Compressing Said Mesh Together With Said Layer Of Mixture To Embed Said Mesh In The Lower Surface Of Said Layer To Form A Board Composed Of Bonded Fibers And Gypsum With Said Mesh Embedded In The Surface Thereof |
| 6,523,314 | Ceiling Grid With Resilient Centering Tabs | 2/25/2003 | Lalonde, Paul D.; Kavanagh, Brock; Alvarez, Dennis | A Grid Tee For A Suspended Ceiling System Having Integral Centering Tabs To Prevent Misalignment Of The Tee In The Space Between Adjacent Ceiling Tiles That Could Otherwise Allow The Edge Of A Tile To Slip Off A Flange Of The Tee The Centering Tabs Are Cut Out Of The Web Of The Tee With A Cantilevered Free Length That Is Sufficient To Enable The Tabs To Deflect A Relatively Large Fraction Of The Width Of A Flange Portion Without Permanently Bending Whereby Variations In The Widths Of Tiles Are Accommodated Without Development Of Excessive Forces Which Could Otherwise Cause The Tabs To Impale Themselves Into The Edges Of The Tiles |
| 6,531,210 | Application Of Methylenediphenyldiisocyanate For Producing Gypsum/Wood Fiber Board | 3/11/2003 | Englert, Mark | A Process For Making An Improved Gypsum/Wood Fiber Board Is Described Products Resulting From The Process Are Also Described The Process Comprises Adding A Diisocyanate, Specifically Methylenediphenyldiisocyanate (MDI) To An Aqueous Slurry Of Calcium Sulfate Material And Cellulosic Fibers, Where The MDI Is Added As An Emulsion Stable In The Conditions In Which The Slurry Is Maintained The Process Further Includes Passing The MDI Containing Slurry Onto A Flat Porous Forming Surface To Form A Filter Cake; Removing A Substantial Portion Of The Water From The Filter Cake Through The Porous Surface; Pressing The Filter Cake To Form A Board And Remove Additional Water; And Drying The Board To Remove The Remaining Free Water |
| 6,545,066 | Lightweight Ready-Mix Joint Compound | 4/8/2003 | Immordino, Jr., Salvatore C.; Miller, Charles J.; Cimaglio, Scott A.; Pickles, David | The Joint Compound Of The Present Invention Utilizes Hollow Resin Microspheres With A Mean Particle Size Less Than 75 Microns And Exhibiting No More Than 15% Increase In Density Under High Shear Stress Testing |
| 6,605,186 | Headbox For Gypsum/Fiber Board Production | 8/12/2003 | Miller, David Paul | A Headbox For Use In A Water Felting Process Includes A Housing And Two Rotating Horizontal Distribution Rolls The Housing Has Curved Sections Shaped To Conform To The Outer Cylindrical Surface Of The Distribution Rolls, Wherein The Curved Section Is Closely Spaced To A Portion Of The Outer Cylindrical Surface Of Both Distribution Rolls |
| 6,620,487 | Structural Sheathing Panels | 9/16/2003 | Tonyan, Timothy D.; Bonen, David M.; Dubey, Ashish; Natesaiyer, Kumar C. | A Reinforced, Lightweight, Dimensionally Stable Panel Capable Of Resisting Shear Loads When Fastened To Framing Equal To Or Exceeding Shear Loads Provided By Plywood Or Oriented Strand Board Panels The Panels Employ A Core Of A Continuous Phase Resulting From The Curing Of An Aqueous Mixture Of Calcium Sulfate Alpha Hemihydrate, Hydraulic Cement, An Active Pozzolan And Lime, The Continuous Phase Being Reinforced With Alkali-Resistant Glass Fibers And Containing Ceramic Microspheres, Or A Blend Of Ceramic And Polymer Microspheres, Or Being Formed From An Aqueous Mixture Having A Weight Ratio Of Water-To-Reactive Powder Of 06/1 To 07/1 Or A Combination Thereof At Least One Outer Surface Of The Panels May Include A Cured Continuous Phase Reinforced With Glass Fibers And Containing Sufficient Polymer Spheres To Improve Nailability Or Made With A Water-To-Reactive Powders Ratio To Provide An Effect Similar To Polymer Spheres, Or A Combination Thereof |
| 6,632,550 | Gypsum-Containing Product Having Increased Resistance To Permanent Deformation And Method And Composition For Producing It | 10/14/2003 | Yu, Qiang; Sucech, Steven W.; Groza, Brent E.; Mlinac, Raymond J.; Jones, Frederick T.; Boehnert, Frederick M. | The Invention Provides A Set Gypsum-Containing Product Having Increased Resistance To Permanent Deformation And A Method For Preparing It Comprising Forming A Mixture Of A Calcium Sulfate Material, Water, And An Appropriate Amount Of One Or More Enhancing Materials Chosen From Condensed Phosphoric Acids, Each Of Which Comprises 2 Or More Phosphoric Acid Units; And Salts Or Ions Of Condensed Phosphates, Each Of Which Comprises 2 Or More Phosphate Units The Mixture Is Then Maintained Under Conditions Sufficient For The Calcium Sulfate Material To Form A Set Gypsum Material |
| 6,641,658 | Rapid Setting Cementitious Composition | 11/4/2003 | Dubey, Ashish | A Rapid Setting Cementitious Composition Useful For Making Cement Boards Employs An Insoluble Form Of Anhydrous Calcium Sulfate (Anhydrite) To Accelerate Setting And To Permit Reducing The Amount Of High Alumina Cement Usage |
| 6,663,979 | Coating For Gypsum Board Face With Uniform Gloss Intensity | 12/16/2003 | Deodhar, Subhash; Haugeberg, Tom; Negri, Robert | A Coating For Gypsum Board Includes A Binder, A Soy Protein, And Two Or More Pigments Two Of The Pigments Include Calcium Carbonate And Magnesium Carbonate And The Magnesium Carbonate Makes Up At Least 20% By Weight Of The Coating On A Dry Basis |
| 6,673,144 | Joint Compound Providing Low Dusting And Good Gloss Retention | 1/6/2004 | Immordino, Jr., Salvatore C.; Stevens, Richard B. | The Present Invention Provides A Low Dusting Joint Compound Comprising A Filler, A Binder, A Thickener And One Or More Synthetic Polymeric Waxes That Are At Least Slightly Soluble In Water And Are Solid At Room Temperature Preferably The Wax Includes A High Molecular Weight Polyethylene Glycol Or Methoxy Polyethylene Glycol Having An Average Melting Point Of From About 80 F (27 F) To About 150 F (80 C) These Additives Impart Low Dusting Properties Without A Sticky Or Oily Feel High Molecular Weight Synthetic Waxes Also Act As An Internal Binder To Hold The Joint Compound Together And Improves Paint Gloss Retention The Invention Results In A Joint Compound With Improved Properties For Drywall Finishing |
| 6,699,364 | Water Spray For Smooth Surface Gypsum Fiberboard Panels | 3/2/2004 | Song, Weixin; Miller, David Paul | An Improved Method And Apparatus For Imparting A Smooth Surface To Gypsum Fiber Panels The Method Involves Imparting Energy To The Surface Of A Slurry As The Slurry Is Dewatered Just Prior To Rehydration The Apparatus Used To Impart The Energy Is A Water Spray Including A Source Of Pressurized Water Such As A Pump, A Distribution Manifold And A Plurality Of Nozzles To Direct The Water Spray At The Surface Of The Slurry In Operation, The Water Spray Is Directed Against The Surface Of The Slurry The Flow Disrupts The Slurry To A Fraction Of Its Total Depth, Thus Dispersing Clumps Or Flocs Of Commingled Crystals And Fibers In The Depth That Would Give The Surface Of The Finished Panel A Rough Surface If They Were Allowed To Remain |
| 6,716,906 | Abuse Resistant Skim Coating Composition | 4/6/2004 | Houman, Thomas G.; Stevens, Richard B.; Fults, Therese A.; Kenny, Timothy G. | Disclosed Is A Ready-To-Use Self-Gauging Coating Compound Containing About 65%-75% Solids That Provides A Flat Finely Textured Finish With Improved Abuse (Abrasion) Resistance Properties The Coating Composition Comprises A Resin Binder In Which There Is Dispersed An Aggregate Consisting Of Particles In A Selected Size Range In A Quantity Sufficient To Form A Layer Of Particles One Particle Deep On The Substrate When The Coating Is Applied To The Substrate |
| 6,729,100 | Main Tee Splice | 5/4/2004 | Koski, Gerald L.; Harcula, John M.; Kavanagh, Brock R. | A Connector For A Main Tee Of A Suspended Ceiling Grid That Has Improved Self-Aligning And Connection Force Properties The Connector Has An End Tab With A Forward Portion Bent At A Lead Angle And A Receiving Pocket With An Outwardly Flared Entrance That, With An Opposed Identical Connector, Cooperate To Provide Smooth Horizontal Alignment The End Portion, Additionally, Includes An Edge Profile That Vertically Aligns Itself With The Receiving Pocket Of The Opposed Connector The Receiving Pocket Includes A Spring-Like Resilient Wall That Limits The Assembly Force To Overcome Interference With Projecting Lock Lances Even When The Connectors Are Nearly Out Of Dimensional Tolerance The Spring-Like Pocket Wall, Shape Of The Lock Lance, And Reinforcing Beads Contribute To An Improved Audible Click Signaling That A Connection Has Been Completed The Lock Lance Works With A Relief Groove To Augment Self-Alignment Of The Connectors |
| 6,733,261 | Apparatus For Smooth Surface Gypsum Fiberboard Panels | 5/11/2004 | Miller, David Paul | An Improved Method And Apparatus For Imparting A Smooth Surface To A Gypsum Fiber Panels The Method Involves Imparting Energy To The Surface Of The Slurry As The Slurry Is Dewatered Just Prior To Rehydration The Apparatus Used To Impart The Energy Is An Air Lance Including An Air Source Such As A Blower, A Distribution Manifold And A Plurality Of Nozzles To Direct The Flow Of Air At The Surface Of The Slurry In Operation, The Air Lance Directs A Flow Of Air Against The Surface Of The Slurry The Flow Disrupts The Slurry To A Fraction Of Its Total Depth, Thus Dispersing Clumps Or Flocs Of Crystals In The Depth That Would Give The Surface Of The Finished Panel A Rough Surface If They Were Allowed To Remain |
| 6,740,395 | Substrate Smoothed By Coating With Gypsum-Containing Composition And Method Of Making | 5/25/2004 | Halm, John D.; Carbo, Aida L.; Lynn, Michael R.; Stevens, Richard B.; Miller, Charles J.; Attard, Peter M.; Fults, Therese A. | A Rough-Surfaced Substrate, Such As A Fiberboard, Is Provided With A Smoother Surface By Applying A Coating Comprising Calcium Sulfate Hemihydrate Which Has Been Prevented From Hydrating To Gypsum By Set Preventer, And Which Sets When Brought Into Contact With A Set Initiator, Eg Aluminum Sulfate, Preferably Present On The Surface Of The Substrate |
| 6,748,712 | Scalable Suspension System For Dome Shaped Ceilings | 6/15/2004 | Likozar, Martin E.; Fletterick, James A.; Wendt, Alan C.; Lewis, David B. | The Present Invention Relates To A Scalable Suspension System For Domed Shaped Ceilings That Includes A Framework Of Suspension Members Interconnected To A Central Hub The Framework Of Suspension Members Are Used To Support A Domed Shaped Ceiling Fabricated From Plaster Or Gypsum Wallboard The Suspension Members Include Primary Spoke Members, Secondary Spoke Members, Intercostal Members And Cross Tees The Primary Spoke Members Are Attached To The Central Hub Component The Intercostal Members Are Spanned Between The Primary Spoke Members The Secondary Spoke Members Are Connected To The Intercostal Members, And Extend Between The Primary Spoke Members The Primary And Secondary Spoke Members Are Interconnected By The Cross Tees To Create A Unified Structure The Hub Includes Radially Indexed Integral Tabs That Facilitate The Attachment Of The Hanger Wires And Allows For The Rigid Attachment Of The Primary Spoke Members In A Precise Radial Pattern |
| 6,752,895 | Water Spray For Smooth Surface Gypsum Fiberboard Panels | 6/22/2004 | Song, Weixin; Miller, David Paul | An Improved Method And Apparatus For Imparting A Smooth Surface To Gypsum Fiber Panels The Method Involves Imparting Energy To The Surface Of A Slurry As The Slurry Is Dewatered Just Prior To Rehydration The Apparatus Used To Impart The Energy Is A Water Spray Including A Source Of Pressurized Water Such As A Pump, A Distribution Manifold And A Plurality Of Nozzles To Direct The Water Spray At The Surface Of The Slurry In Operation, The Water Spray Is Directed Against The Surface Of The Slurry The Flow Disrupts The Slurry To A Fraction Of Its Total Depth, Thus Dispersing Clumps Or Flocs Of Commingled Crystals And Fibers In The Depth That Would Give The Surface Of The Finished Panel A Rough Surface If They Were Allowed To Remain |
| 6,763,641 | Gridless Free Form Plank Ceiling | 7/20/2004 | Ahren, Gregory M.; Bankston, John | A Suspended Ceiling Island Is Constructed Of Sheet Metal Panels That Since They Are Assembled Without A Supporting Gridwork Can Be Configured To Create Substantially Any Desired Free Form Island Shape Typically, The Panels Have A Pair Of Generally Opposed Straight Sides And A Pair Of Generally Opposed Free Form Sides The Straight Sides, Ideally, Include Upstanding Flanges That Are Used To Stiffen, Interconnect And Suspend The Panels Additionally, The Flanges Can Be Shaped Into Hollow Sections Similar To Standard Grid Tee Shapes To Enable The Use Of Standard Hardware To Attach Trim Strips To The Perimeter Of The Island |
| 6,782,670 | Multi-Planar Ceiling System | 8/31/2004 | Wendt, Alan C. | The Present Invention Relates To A Novel Ceiling Panel That Is Used With A Corresponding Grid System To Create A Shingle-Type Ceiling Structure The Panels, Are Arranged In The Grid System To Create Various Patterns Including Shingles, Saw Teeth, Undulations, Pin Wheels, Among Others And Are Designed To Enhance The Appearance Of Retail And Office Space The Ceiling Is Comprised Of A Grid System Made Up Of Intersecting Grid Members Suspended From The Building Structure With Hangers The Grid Members Are Rigid Preformed Members That Include A Base Portion A Bridge Portion And A Bulb Portion The Base Portion Is Perpendicularly Oriented To The Bridge Member And Is Adapted To Support The Panels The Panels Are Square When Viewed In Plain View But Have A Tapered Cross-Section About All Or Part Of The Panels The Panels Can Be Fabricated Out Of Polycarbonate Or Metal And Can Be Opaque Or Translucent The Panels Are Arranged In The Grid In A Fashion So That Certain Repeating Patterns Are Formed When Viewed From Below |
| 6,800,131 | Gypsum-Containing Board And Tile, And Method For Producing Gypsum-Containing Board And Tile | 10/5/2004 | Yu, Qiang; Sucech, Steven W.; Groza, Brent E.; Mlinac, Raymond J.; Jones, Frederick T.; Henkels, Paul J. | The Invention Provides A Set Gypsum-Containing Product Having Increased Resistance To Permanent Deformation And A Method For Preparing It Comprising Forming A Mixture Of A Calcium Sulfate Material, Water, And An Appropriate Amount Of One Or More Enhancing Materials Chosen From Condensed Phosphoric Acids, Each Of Which Comprises 2 Or More Phosphoric Acid Units; And Salts Or Ions Of Condensed Phosphates, Each Of Which Comprises 2 Or More Phosphate Units The Mixture Is Then Maintained Under Conditions Sufficient For The Calcium Sulfate Material To Form A Set Gypsum Material |
| 6,805,741 | Ready-Mixed Setting-Type Composition And Related Kit | 10/19/2004 | Liu, Qingxia; Natesaiyer, Kumar; Yu, Qiang | A Ready-Mixed Composition, Which Sets When Mixed With An Activator For The Reaction Of Calcined Gypsum With Water To Form Set Gypsum, Is Disclosed The Composition Comprises Water And Calcined Gypsum In A Weight Ratio Of Water To Calcined Gypsum Of From About 015 To About 05, As Well As A Set Preventer Comprising A Polyacrylic Acid And/Or A Salt Thereof The Composition Has A Viscosity Of From About 5,000 Centipoise To About 48,000 Centipoise Also Disclosed Is A Kit That Comprises Separately Packaged Components One Of The Components Is A Composition Comprising Calcined Gypsum And A Polyacrylic Acid And/Or A Salt Thereof, And, Optionally, Water Another Component Of The Kit Comprises An Activator Which, When Mixed With The Composition, Permits The Composition To Set |
| 6,807,785 | Moir_ Ceiling Panels | 10/26/2004 | Lynch, Diane Irene; Wendt, Alan C. | The Present Invention Relates To A Ceiling Panel For Suspended Ceiling Systems That Is Designed To Create A Moir_ Effect When Viewed From Below The Moir_ Ceiling Panels Are Designed To Fit Into A Standard Suspended Ceiling Grid And Include A Semi-Transparent Upper Layer, A Semi-Transparent Lower Layer, And A Light Diffusing Layer The Lower Layer Includes A Surface With A Plurality Of Openings To Allow Light From Above The Suspended Ceiling To Pass Through The Upper Layer Also Includes A Surface With A Plurality Of Openings And Is Connected To The Lower Layer To Form The Moir_ Panel The Light Diffusing Layer Is Connected To The Upper Panel And Is Design To Intensify The Moir_ Pattern While Simultaneously Concealing The Area Above The Panel |
| 6,815,049 | Gypsum-Containing Composition Having Enhanced Resistance To Permanent Deformation | 11/9/2004 | Veeramasuneni, Srinivas; Yu, Qiang; Frank, William A. | A Composition Including, But Not Limited To, A Mixture Of A Calcium Sulfate Material, Water, And A Tetrametaphosphate Compound Is Disclosed Desirably, The Inclusion Of The Tetrametaphosphate Compound (Eg, Salt Or Ion) In A Pre-Set Treatment Of A Calcium Sulfate Material Enhances The Resistance To Permanent Deformation (Eg, Sag), Dimensional Stability, And/Or Compressive Strength Of The Composition While Also Preferably Avoiding Any Significant Retardive Effect On The Rate Of Hydration Of Calcined Gypsum To Calcium Sulfate Dihydrate A Set Gypsum-Containing Product And A Method For Producing A Set Gypsum-Containing Product Having Increased Resistance To Permanent Deformation Are Also Disclosed |
| 6,822,033 | Compositions And Methods For Treating Set Gypsum | 11/23/2004 | Yu, Qiang; Liu, Qingxia; Grussing, Jeffrey F.; Moyer, Kevin W.; Spencer, Richard | A Composition And Method For Treating A Set Gypsum-Containing Material Are Disclosed The Composition Is Formed From At Least Water At Least One Trimetaphosphate Salt, At Least One Monobasic Phosphate Salt, And At Least One Acyclic Polyphosphate Salt Having At Least Three Phosphate Units The Method Comprises Applying To A Set Gypsum Material At Least Two Of The Following Inorganic Phosphates: At Least One Monobasic Phosphate Salt, At Least One Trimetaphosphate Salt, And At Least One Acyclic Polyphosphate Salt Having At Least Three Phosphate Units The Method Can Be For Inhibiting Re-Calcination Of A Set Gypsum Containing Material, And/Or For Enhancing The Strength, Surface Hardness, Paintability, Abrasion Resistance, And/Or Water Erosion Resistance Of A Set Gypsum-Containing Material Also Disclosed Is A Method Of Making A Set Gypsum-Containing Material |
| 6,834,467 | Free Form Ceiling | 12/28/2004 | Gulbrandsen, Peder; Lehane, James J.; Wendt, Alan C. | A Free Form Ceiling Panel For Suspended Ceiling Systems That Creates The Appearance Of Moguls The Free Form Ceiling Panels Fit Into A Suspended Ceiling Grid The Free Form Ceiling Is A Grid System Made Up Of Curving Tee Members And Preformed Curved Panels The Grid Members Curve In Predefined Radii Into Which Formed Panels Are Placed The Frame Is Formed From Individual Curved Grid Members That Meet At Their Respective Ends To Form Intersections The Grid Members Are Rigid Preformed Members That Are Curved So That When Interconnected A Curve Is Formed |
| 6,855,753 | Acoustical Tile Containing Wet-Strength Resin | 2/15/2005 | Englert, Mark H. | Disclosed Is An Acoustical Tile Composition In Which The Conventional Starch Binder Is Replaced By A Wet-Strength Resin, Such As A Polyamine Epichlorohydrin Resin, Can Be Fabricated Into Ceiling Tiles And Panels Using Conventional Water Felting Processes And Equipment With Improved Efficiency The Acoustical Tile Compositions, With The Polyamine Epichlorohydrin Resins Binder, Can Be Dried Significantly Faster Than Comparable Compositions Containing Conventional Starch Binders |
| 6,869,474 | Very Fast Setting Cementitious Composition | 3/22/2005 | Perez-Pena, Marianela ; Dubey, Ashish | Extremely Fast Setting Of Cementitious Compositions For Producing Cement-Based Products Such As Cement Boards Is Made Possible By Adding An Alkanolamine To A Hydraulic Cement Such As Portland Cement, And Forming A Slurry With Water Under Conditions That Provide An Initial Slurry Temperature Of At Least 90 F Use Of Alkanolamine Under Conditions Disclosed Herein Allows An Extremely Rapid Setting Of The Cementitious Composition Additional Reactive Materials May Be Included Such As High Alumina Cement, Calcium Sulfate And A Pozzolanic Material Such As Fly Ash The Extremely Fast Rapid Set Permits Rapid Production Of Cementitious Products |
| 6,874,930 | Slurry Mixer Outlet | 4/5/2005 | Wittbold, James R. ; Duvedi, Amit P. ; Shake, Michael P. ; Hemphill, Mark K. ; Fleming, Wayne A. | An Apparatus Configured For Connection To A Mixer For Receiving A Slurry And Altering The Flow Characteristics Of The Slurry Includes A Conduit Having A Main Inlet In Slurry Receiving Communication With The Mixer Outlet And Extending To A Spout For Discharging The Slurry, At Least One Conduit Restrictor Associated With The Conduit For Creating Back-Pressure Between The Conduit Restrictor And The Mixer Outlet For Keeping The Mixer Full, And At Least One Pressure Reducer Associated With The Discharge Spout And Configured For Reducing The Pressure Of The Slurry Dispensed From The Discharge Spout The Apparatus Is Configured For Maintaining A Generally Laminar Flow From The Mixer Outlet To The Discharge Spout |
| 6,893,752 | Mold-Resistant Gypsum Panel And Method Of Making Same | 5/17/2005 | Veeramasuneni, Srinivas ; Musselman, Rodney Phillip | A Mold-Resistant Gypsum Panel Includes A Core Of An Interlocking Matrix Of Calcium Sulfate Dihydrate Crystals, A Facing Material On At Least One Side Of The Panel And A Salt Of Pyrithione Dispersed Through Both The Core And The Facing Materials A Method Of Making A Mold-Resistant Gypsum Product Is Also Provided A Slurry Of Calcined Gypsum, Water And A Water-Soluble Pyrithione Salt Is Formed, Then Deposited On A Sheet Of Facing Material The Slurry On The Facing Material Is Shaped Into A Panel And Maintained Under Conditions Sufficient For The Calcined Gypsum To React With The Water To Form A Core Comprising An Interlocking Matrix Of Set Gypsum Crystals Heating Of The Panel Causes Evaporation Of The Water That Did Not React With The Calcined Gypsum |
| 6,951,586 | Spray Apparatus | 10/4/2005 | Nelson, Christopher R. ; Scalf, Mark B. | The Disclosed Invention Consists Of An Improved Gypsum Based, Cellulosic Containing Board And Method For Applying A Resin To An Untreated Board At A Spray Station Where Pmdi Resin Is Sprayed Onto The Front And Back Side Of The Board A Resin Distribution System Is Used To Supply The Spray Nozzles With Pmdi Optionally, A Second Spray Station Is Included, If Desired, To Add Additional Pmdi Resin Over The Surface Of The Board To Achieve Complete Coverage The Improvement Is An Increased Water Resistance And Flexural Strength |
| 6,986,812 | Slurry Feed Apparatus For Fiber-Reinforced Structural Cementitious Panel Production | 1/17/2006 | Dubey, Ashish ; Porter, Michael J. | A Feed Apparatus For Use In Depositing A Slurry Upon A Moving Web Having A Direction Of Travel Includes A Main Metering Roll, A Companion Roll Disposed In Closely Spaced Relation To The Metering Roll To Form A Nip Therebetween The Nip Is Constructed And Arranged To Retain A Supply Of The Slurry, And The Rolls Are Driven So That Slurry Retained In The Nip Progresses Over An Upper Outer Peripheral Surface Of The Metering Roll To Be Deposited Upon The Web Also Preferably Included Is A Thickness Control Roll Disposed In Operational Relationship To The Metering Roll For Controlling Thickness Of A Layer Of Slurry Drawn From The Nip Over The Outer Metering Roll Surface Preferably, The Metering Roll, The Companion Roll And The Thickness Control Roll Are Driven In The Same Direction |
| 7,007,914 | Slurry Mixer Constrictor Valve | 3/7/2006 | Petersen, Bruce Lynn ; Haszel, Richard James ; Wittbold, James R. | An Apparatus And Method For Controlling The Flow Of A Slurry Is Provided Which Includes Using A Constrictor Valve On A Mixing And Dispensing Apparatus The Constrictor Valve Includes A First Guide Plate And A Second Guide Plate That Are Spaced A Distance Apart Along The Length Of The Conduit Extending Between The Two Guide Plates, A Plurality Of Elongate Members Have First And Second Ends Engaged On The First And Second Guide Plates Upon Rotation Of At Least One Of The First And Second Guide Plates, The Elongate Members Are Configured To Impart Pressure On, And Constrict The Conduit |
| 7,047,702 | Perimeter Angle Trim | 5/23/2006 | Callens, Jean-Pierre ; Quentin, Gerard | A Wall Molding For Suspended Ceiling Systems Has A Self-Aligning Feature Adapted To Locate One End Of A Piece Being Installed On The End Of A Previously Installed Piece So That An Installation Of High Quality Workmanship Is Quickly Obtained The Self-Aligning Feature Is In The Form Of A Tongue Extending Longitudinally Beyond A Faux End And Adapted To Nest In The Previously Installed Piece The Tongue Fits Within The Spaces Between Hems On The Longitudinal Edges Of Legs Of A Right Angle Cross-Section And The Opposed Legs So That The Tongue Is Laterally Restrained In The Planes Of The Legs And Is Longitudinally Restrained By Abutting End Edges |
| 7,056,460 | Application Of Methylenediphenyldiisocyanate For Producing Gypsum/Wood Fiber Board | 6/6/2006 | Englert, Mark | A Process For Making An Improved Gypsum/Wood Fiber Board Is Described Products Resulting From The Process Are Also Described The Process Comprises Adding A Diisocyanate, Specifically Methylenediphenyldiisocyanate (MDI) To An Aqueous Slurry Of Calcium Sulfate Material And Cellulosic Fibers, Where The MDI Is Added As An Emulsion Stable In The Conditions In Which The Slurry Is Maintained The Process Further Includes Passing The MDI Containing Slurry Onto A Flat Porous Forming Surface To Form A Filter Cake; Removing A Substantial Portion Of The Water From The Filter Cake Through The Porous Surface; Pressing The Filter Cake To Form A Board And Remove Additional Water; And Drying The Board To Remove The Remaining Free Water |
| 7,056,582 | Mold Resistant Acoustical Panel | 6/6/2006 | Carbo, Adelaida L. ; Englert, Mark H. ; Musselman, Rodney Phillip | A Composition For A Slurry For Manufacture Of Acoustical Panels Includes One Or More Fillers, One Or More Binders, Water And Zinc Pyrithione At Least Of The Fillers And/Or Binders Includes Microbial Nutrients In An Amount Of At Least 1% Based On The Dry Weight Of The Acoustical Panel In Another Embodiment Of The Invention, Acoustical Panels Include A Core Having A Plurality Of Opposing Surfaces And Being At Least _ Inches Thick The Core Comprises The Dried Product Of A Slurry Of Fillers, Binders And Water Zinc Pyrithione Is Present In At Least One Of The Core And A Coating Applied To At Least One Of The Surfaces Of The Core |
| 7,056,964 | High Strength Flooring Compositions | 6/6/2006 | Lettkeman, Dennis Mark ; Kaligian, Ii, Raymond A. ; Whiteside, Eldon L. ; Bedwell, William K. ; Meiseman, Sharon | A Composition Is Disclosed For A Mixture To Be Used In Conjunction With Water For Preparing A Slurry That Hydrates To Form A High Strength Flooring Compound The Mixture Includes From About 50% To About 98% By Weight Calcium Sulfate Hemihydrate, Having At Least 25% Of The Calcium Sulfate Hemihydrate In The Beta-Calcined Form A Polycarboxylate Dispersant Is Included In The Mixture In Amounts From About 02% To About 10% By Weight The Mixture Also Includes 005_50% By Weight Enhancing Component When Combined With Recommended Amounts Of Water, A Slurry Is Formed That Is Useful As A Flooring Composition |
| 7,121,713 | Swinging Agitator For A Gypsum Calcining Apparatus And The Like | 10/17/2006 | Bolind, Michael L. ; Porter, Michael J. | An Agitation Mechanism For A Gypsum Processing Apparatus Which Includes A Housing Having A Bottom Wall, And At Least One Side Wall The Housing Can Be Constructed And Arranged To Receive And Process Gypsum-Based Products An Agitator Frame Having A Similarly Shaped Cross-Section To The Cross-Section Of The Housing Is Provided And Positioned Adjacent The Bottom Wall Of The Housing The Agitator Frame Is Pivotally Connected Internally To The Housing For Reciprocating Movement Between First And Second Positions The Agitation Mechanism Is Operable For Preventing Fluid Channeling To Ensure Good Fluidization Of The Gypsum Products From Collecting Adjacent The Bottom Wall Of The Housing |
| 7,154,282 | System And Method For Calibrating Moisture Meters With Associated Settable Slurry Products For Determining Relative Dryness | 12/26/2006 | Dombeck, Russell A. | A Method Is Provided For Calibrating A Moisture Meter To A Particular Settable Slurry Product For Determining The Relative Dryness Of The Product The Steps Of The Method Include Determining The Appropriate Relative Dryness Of The Particular Slurry Product, Associating A Moisture Meter Reading With The Appropriate Relative Dryness To Achieve A Meter Value, Determining The Relative Spacing Of The Meter From A Conductive Surface For Obtaining The Associated Meter Value And Providing A Spacer Having The Relative Spacing For Calibrating Subsequent Meters For Measuring The Relative Dryness Of The Settable Slurry Product |
| 7,175,426 | High Efficiency Refractoryless Kettle | 2/13/2007 | Bolind, Michael L. ; Dundas, Warner J. ; Porter, Michael J. ; Nelson, Christopher R. ; Deodhar, Subhash | An Apparatus For Calcining Gypsum Including A Housing Having A Bottom Wall, Open Top, And A Plurality Of Side Walls Extending Therebetween A Fixture Is Located Adjacent The Open Top For Receiving Gypsum From A Source And Transferring The Gypsum Into The Housing At Least One Burner Is Connected To The Housing And Operable For Combusting An Air-Fuel Mixture To Heat The Gypsum At Least One Serpentine Burner Conduit Extends From The Burner Through The Housing And Terminates Through A Support Floor Of The Apparatus The Exhaust Flow Is Then Directed Through A Fluidization Pad And Into The Gypsum To Further Heat The Gypsum Product An Agitation Mechanism Is Operable To Mix The Gypsum Adjacent The Fluidization Pad To Prevent Pockets Of Gypsum From Coagulating And Preventing Fluidization Of The Gypsum |
| 7,182,589 | Embedment Device For Fiber-Enhanced Slurry | 2/27/2007 | Porter, Michael J. | An Embedment Device For Use In A Structural Panel Production Line Wherein A Slurry Is Transported On A Moving Carrier Relative To A Support Frame, And Chopped Fibers Are Deposited Upon The Slurry, Includes A First Elongate Shaft Secured To The Support Frame And Having A First Plurality Of Axially Spaced Disks, A Second Elongate Shaft Secured To The Support Frame And Having A Second Plurality Of Axially Spaced Disks, The First Shaft Being Disposed Relative To The Second Shaft So That The Disks Intermesh With Each Other The Intermeshing Relationship Enhances Embedment Of The Fibers Into The Slurry And Also Prevents Clogging Of The Device By Prematurely Set Slurry Particles |
| 7,244,304 | Gypsum-Containing Board And Tile, And Method For Producing Same | 7/17/2007 | Yu, Qiang ; Sucech, Steven W ; Groza, Brent E. ; Mlinac, Raymond J. ; Jones, Frederick T. ; Henkels, Paul J. | A Method For Producing A Set Gypsum-Containing Product Comprising An Interlocking Matrix Of Set Gypsum Wherein Said Method Comprises Applying To Said Set Gypsum One Or More Enhancing Materials Selected From The Group Consisting Of Phosphoric Acid; Condensed Phosphoric Acids, Each Of Which Comprises 2 Or More Phosphoric Acid Units; And Salts Or Ions Of Condensed Phosphates, Each Of Which Comprises 2 Or More Phosphate Units, And Monobasic Salts Or Monovalent Ions Of Orthophosphates |
| 7,273,579 | Process For Production Of Gypsum/Fiber Board | 9/25/2007 | Miller, David Paul ; Yosick, Joseph A. | An Improved Process Calcining A Gypsum/Cellulosic Fiber Slurry To Produce A Composite Gypsum/Cellulosic Fiber Product Resides In Adding A Selected Crystal Modifier To The Gypsum/Cellulosic Fiber Slurry Prior To The Heating Step To Reduce The Time Necessary To Carry Out The Calcination Process, To Reduce The Temperature At Which The Calcination Process Is Run Or To Increase The Aspect Ratio Of The Acicular Calcium Sulfate Alpha Hemihydrate Crystals Formed During The Calcination Process Useful Crystal Modifiers Include Aluminum Sulfate, Aluminum Chloride, Chlorine, Zinc Sulfate, Iron (III) Sulfate, Aluminum Sulfate Hexadecahydrate, Iron (II) Sulfate Heptahydrate, Iron (III) Sulfate Pentahydrate, Zinc Sulfate Heptahydrate, Copper Sulfate Pentahydrate, Copper Chloride Dehydrate, Manganese Sulfate Monohydrate And Trisodium Phosphate |
| 7,276,549 | Surface Enhancing Coating For Gypsum-Containing Floor Underlayments | 10/2/2007 | Liu, Qingxia ; Ellicson, John W. ; Mcdonald, David | A Coating For Preparing A Floor Underlayment To Receive An Adhesive Includes A Water-Soluble, Latex Polymer, A Defoamer And A Dual-Function Surface Enhancing Agent The Surface Enhancing Agent Includes A Set Accelerator That Also Functions To Cross Link The Adhesive, Hardening The Surface Of The Underlayment Using At Least Two Mechanisms One Embodiment Of The Invention Is A Dry Mixture That Forms A Coating When Added To Water The Dry Mixture Includes From About 10% To About 50% Of The Redispersible Polymer By Weight Based On The Mixture, From About 50% To About 90% Of The Surface Enhancing Agent And From About 015% To About 025% Of The Defoamer By Weight Based On The Mixture Other Embodiments Describe A Liquid Coating Formed By Adding From About 1 To About 8 Pails Water To 1 Part Of The Dry Mixture On A Volume Basis By Volume Based On The Mixture |
| 7,296,919 | Slurry Mixer Constrictor Valve | 11/20/2007 | Petersen, Bruce Lynn ; Haszel, Richard James ; Wittbold, James R. | A Method For Providing A Smoothly Mixed Slurry To A Web Is Provided Which Includes Inserting Calcined Gypsum And Water Into A Mixer (12), Agitating The Contents Of The Mixer (12) To Form An Aqueous Dispersion Of The Calcined Gypsum, And Passing The Agitated Contents From An Outlet (20) Of The Mixer (12) Into A Slurry Dispensing Apparatus (22) Including A Flexible, Resilient Conduit (24) Additionally, The Method Includes The Step Of Creating A Back-Pressure On The Mixture In The Slurry Dispensing Apparatus By Constricting The Conduit (24) The Constricting Of The Conduit (24) Is Effected By A Constrictor Valve (28) Located On The Conduit (24) |
| 7,309,516 | Cellulose Gypsum Based Substrate With Increased Water Resistance And Strength By Surface Application Of Polymeric Diphenylmethane Diisocyanate | 12/18/2007 | Nelson, Christopher R. ; Scalf, Mark B. | The Disclosed Invention Consists Of An Improved Gypsum Based, Cellulosic Containing Board And Method For Applying A Resin To An Untreated Board At A Spray Station Where Pmdi Resin Is Sprayed Onto The Front And Back Side Of The Board A Resin Distribution System Is Used To Supply The Spray Nozzles With Pmdi Optionally, A Second Spray Station Is Included, If Desired, To Add Additional Pmdi Resin Over The Surface Of The Board To Achieve Complete Coverage The Improvement Is An Increased Water Resistance And Flexural Strength |
| 7,338,990 | High Molecular Weight Additives For Calcined Gypsum And Cementitious Compositions | 3/4/2008 | Lettkeman, Dennis Mark ; Kaligian, Ii, Raymond A. ; Bedwell, William K. ; Whiteside, Eldon L. | A Mixture Is Used In Conjunction With Water Is Used For Preparing A Slurry That Hydrates To Form An Exterior Gypsum Cement The Mixture Includes 30-70% By Weight Hydraulic Cement, 30-70% By Weight Calcined Gypsum And 005-25% Polycarboxylate When The Mixture Is Added To Water Less Than 40 Weight % Based On The Weight Of The Mixture, A Slurry Is Formed That Expands Very Little While It Cures |
| 7,347,895 | Flexible Hydraulic Compositions | 3/25/2008 | Dubey, Ashish | A Composition For Making Flexible Articles Includes A Hydraulic Component Of At Least 50 Weight % Fly Ash, A Water-Soluble, Film-Forming Polymer And Water Articles Are Made From This Composition By Making A Slurry Of The Components, Forming The Article And Allowing It To Set |
| 7,364,015 | Acoustical Panel Comprising Interlocking Matrix Of Set Gypsum And Method For Making Same | 4/29/2008 | Englert, Mark H. ; Stevens, Richard B. ; Sucech, Steven W. ; Fults, Therese A. ; Porter, Michael J. ; Petersen, Bruce L. ; Dombeck, Russell A. | An Acoustical Panel Comprising A Continuous Phase Of An Interlocking Set Gypsum Matrix And A Method Of Preparing An Acoustical Panel Are Disclosed |
| 7,364,676 | Slurry Spreader For Cementitious Board Production | 4/29/2008 | Sucech, Steven W. ; Englert, Mark H. ; Frank, William A. ; Mlinac, Raymond John ; Veeramasuneni, Srinivas | The Invention Provides A Board Forming System Comprising A Forming Table Comprising A Belt With A Surface For Conveying A Backing Layer; A Mixer Fitted With A Mechanism Capable Of Depositing Cementitious Slurry Material Over A Top Surface Of The Backing Layer; And A Slurry Spreader Positioned Downstream Of The Mixer, Wherein A Portion Of The Slurry Spreader Comprises A Plurality Of Apertures Which Are Connected To A Source Of Pressurized Fluid The Slurry Spreader Is Configured Such That The Pressurized Fluid Flows Out Of The Slurry Spreader Through The Apertures So As To Provide A Continuous Film Of Fluid Across An Outer Surface Of The Slurry Spreader The Slurry Spreader Is Positioned Such That It Can Contact At Least A Portion Of The Cementitious Slurry After The Slurry Exits The Discharge And Before The Slurry Is Spread Across The Width Of The Backing Layer Such That The Thickness Of The Slurry Is Approximately Equal To The Desired Slurry Thickness For Board Formation The Invention Further Provides Methods For Forming Cementitious Board Comprising The Use Of The Slurry Spreader |
| 7,374,611 | Sprayable Machinable Media | 5/20/2008 | Lettkeman, Dennis Mark ; Kaligian, Ii, Raymond A. ; Whiteside, Eldon L. ; Immordino, Jr., Salvatore C. | In Conjunction With Water, A Mixture Can Be Used To Prepare A Sprayable Slurry That Hydrates To Form A Machinable Plaster Composition The Mixture Includes From About 80% To About 98% By Weight Calcium Sulfate Hemihydrate, From About 1% To About 5% By Weight Adhesive Binder For Adhering Said Plaster Mixture To A Substrate And From About 0001% To About 10% Of A Polysaccharide The Mixture Is Made Into A Slurry By The Addition Of From 10% To About 50 Weight Water Based On The Weight Of The Mixture |
| 7,381,261 | Expanded Perlite Annealing Process | 6/3/2008 | Nelson, Christopher R. | This Invention Is Directed To A Method Of Reducing The Water Demand Of Expanded Perlite That Includes Obtaining A Vibrating Screen Supported At An Angle And Placing Expanded Perlite On The Vibrating Screen The Expanded Perlite Is Moved Over The Screen Past Toward A Burner At A Rate That Heats The Expanded Perlite To A Temperature Sufficient To Anneal It The Expanded Perlite Is Then Moved Away From The Burner And Allowed To Cool Another Embodiment Of This Invention Is Directed To A Method Of Making A Gypsum Product The Method Includes Annealing Perlite By The Method Described Above, Then Preparing A Slurry Of Calcium Sulfate Hemihydrate, Additives, Water And The Annealed Perlite The Slurry Is Formed Into The Shape Of The Gypsum Product And Allowed To Set This Process Is Particularly Useful In Making Gypsum Panels And Acoustical Panels That Benefit From The Use Of Lightweight Materials |
| 7,392,629 | Suspended Ceiling System | 7/1/2008 | Bankston, John D. ; Ahren, Gregory M. ; Harcula, John | A Suspended Ceiling Comprising A Pair Of Parallel Main Grid Tees, The Tees Being Of The Type Having Its Panel Supporting Flange Forming A Hollow With A Downwardly Open Slot, A Plurality Of Identical Stabilizer Bars Spacing Said Main Grid Tees A Predetermined Distance, Trim Strips Assembled On Said Main Grid Tees, The Trim Strips Each Having A First Portion Hooked Into The Hollow Flange Of A Respective Tee And A Second Portion Abutting A Web Of The Respective Tee, The Stabilizer Bars Being Arranged To Engage Opposite Sides Of Reinforcing Bulbs Of The Main Grid Tees To Hold The Same Against Relative Lateral Horizontal Movement From Their Desired Positions, The Stabilizer Bars Engaging The Trim Strips In A Manner That Holds Their Second Portions In Abutment With The Webs Of Their Respective Tees The Stabilizer Bars Are Formed Of Sheet Metal And Have Bendable Tabs That Can Be Bent To Hold Said Trim Strip Second Portions In Contact With The Webs Of Their Respective Tees The Trim Strips Have A G-Shaped Profile That Is Adapted To Receive Portions Of Cross Tee Connectors Assembled Through Slots In The Webs Of The Main Grid Tees |
| 7,410,688 | Lightweight Panel | 8/12/2008 | Baig, Mirza A. | A Composite Board Comprising A Core And A Paper Facer Sheet Adhesively Laminated To One Face Of The Core, The Core Including A Mixture Of Perlite, Binder, And Cellulose Fiber, The Core Being Formed As A Water Slurry With Said Perlite, Binder And Cellulose Fiber Being Uniformly Distributed Therein, The Perlite Being In An Expanded State Such That Its Particles Include Internal Voids And Exhibit A Density Of About 5 To About 15 Pounds Per Cubic Foot And Being Present In Sufficient Quantity To Occupy In Bulk At Least 50% Of The Volume Of The Core, On A Weight Basis, The Perlite And Cellulose Fiber Combined Forming At Least 25% Of The Weight Of The Core The Paper Facer Being Laminated To The Core With A Water-Based Adhesive Applied Across Substantially The Full Area Of The Facer, Both The Compressive Strength Of The Perlite And Tensile Strength Of The Cellulose Fiber Being Utilized By Operation Of The Binder Such That A Relatively High Nail-Pull Capacity In Comparison To The Weight Of The Composite Board Is Achieved And Sag Resistance Is Imparted To The Composite Board When It Is Used For Ceiling Tile |
| 7,413,603 | Fiberboard With Improved Water Resistance | 8/19/2008 | Miller, David Paul ; Veeramasuneni, Srinivas | Articles, Including Fiberboard, Are Made From A Pumpable, Flowable Slurry Including Alpha-Calcined Calcium Sulfate Hemihydrate Anchored In Pores Of Host Particles, Alpha-Calcined Calcium Sulfate Hemihydrate, A Silicone Compound, Magnesium Oxide, And Water The Magnesium Oxide Catalyzes The Reaction Of The Silicone Compound Into A Silicone Resin In A Preferred Method Of Making A Water Resistant Fiberboard Calcium Sulfate Dihydrate Is Combined With The Host Particles And Water To Form A Slurry Which Is Heated Under Pressure To Calcine The Calcium Sulfate Dihydrate To Form Alpha-Calcined Calcium Sulfate Hemihydrate After Relieving The Pressure, A Silicone Compound And Magnesium Oxide Are Added To The Slurry The Slurry Is Dewatered To Form A Filter Cake, Which Is Then Formed Into A Desired Shape And Allowed To Set |
| 7,425,236 | Gypsum-Containing Board And Tile, And Method For Producing Same | 9/16/2008 | Yu, Qiang ; Sucech, Steven W. ; Groza, Brent E. ; Mlinac, Raymond J. ; Jones, Frederick T. ; Henkels, Paul J. | The Invention Provides A Set Gypsum-Containing Product Having Increased Resistance To Permanent Deformation And A Method For Preparing It Comprising Forming A Mixture Of A Calcium Sulfate Material, Water, And An Appropriate Amount Of One Or More Enhancing Materials Chosen From Condensed Phosphoric Acids, Each Of Which Comprises 2 Or More Phosphoric Acid Units; And Salts Or Ions Of Condensed Phosphates, Each Of Which Comprises 2 Or More Phosphate Units The Mixture Is Then Maintained Under Conditions Sufficient For The Calcium Sulfate Material To Form A Set Gypsum Material |
| 7,434,318 | Tool With Enlarged Hammer Element | 10/14/2008 | Perez, Ricardo ; Lind, Jason ; Myers, Matthew Earle ; Fong, Scott | A Tool Includes A Blade Having A Working Edge And An Attachment Edge Opposite The Working Edge, A Handle With Distal And Proximal Ends And A Body Having At Least One Diameter The Proximal End Is Associated With The Attachment Edge A Hammer Element Is Associated With The Distal End, And A Periphery Of The Hammer Element Extends In A Radial Direction Greater Than The At Least One Diameter Of The Body |
| 7,434,980 | Swinging Agitator For A Gypsum Calcining Apparatus And The Like | 10/14/2008 | Bolind, Michael L. ; Porter, Michael J. | An Agitation Mechanism For A Gypsum Processing Apparatus Which Includes A Housing Having A Bottom Wall And At Least One Side Wall The Housing Can Be Constructed And Arranged To Receive And Process Gypsum-Based Products An Agitator Frame Having A Similarly Shaped Cross-Section To The Cross-Section Of The Housing Is Provided And Positioned Adjacent The Bottom Wall Of The Housing The Agitator Frame Is Pivotally Connected Internally To The Housing For Reciprocating Movement Between First And Second Positions The Agitation Mechanism Is Operable For Preventing Fluid Channeling To Ensure Good Fluidization Of The Gypsum Products From Collecting Adjacent The Bottom Wall Of The Housing |
| 7,445,738 | Multi-Layer Process And Apparatus For Producing High Strength Fiber-Reinforced Structural Cementitious Panels | 11/4/2008 | Dubey, Ashish ; Chambers, Joe W. ; Greengard, Aaron ; Li, Alfred C. ; Miller, D. Paul ; Porter, Michael J. | A Multi-Layer Process For Producing Structural Cementitious Panels, Includes, A Providing A Moving Web; B One Of Depositing A First Layer Of Loose Fibers Upon The Web And C Depositing A Layer Of Settable Slurry Upon The Web; D Depositing A Second Layer Of Loose Fibers Upon The Slurry; E Embedding Said Second Layer Of Fibers Into The Slurry; And F Repeating Steps C Through E Until The Desired Number Of Layers Of Settable Fiber-Enhanced Slurry In The Panel Is Obtained Also Provided Are A Structural Panel Produced By The Present Process, An Apparatus Suitable For Producing Structural Cementitious Panels According To The Present Process, And A Structural Cementitious Panel Having Multiple Layers, Each Layer Created By Depositing A Layer Of Settable Slurry Upon A Moving Web, Depositing Fibers Upon The Slurry And Embedding The Fibers Into The Slurry Such That Each Layer Is Integrally Formed With The Adjacent Layers |
| 7,458,127 | Taping Knife With Offset Handle | 12/2/2008 | Bruno, Robert ; Sterpka, Frank ; Myers, Matthew Earle | A Taping Knife Has A Web, A Working Edge, Two Side Edges, And A Handle Edge Opposite The Working Edge The Handle Is Connected To The Blade To Have An Angular Orientation Relative To The Working Edge Of The Blade Such That The Handle Is Neither Parallel Nor Perpendicular To The Blade Working Edge |
| 7,468,154 | Flexible Hydraulic Compositions | 12/23/2008 | Dubey, Ashish | A Composition For Making Flexible Articles Includes A Hydraulic Component Of At Least 50 Weight % Fly Ash, A Water-Soluble, Film-Forming Polymer And Water Articles Are Made From This Composition By Making A Slurry Of The Components, Forming The Article And Allowing It To Set |
| 7,475,599 | Wet Slurry Thickness Gauge And Method For Use Of Same | 1/13/2009 | Frank, William A. ; Underkofler, Abraham M. ; Rago, William J. | A Handheld Wet Slurry Thickness Gauge And Method For Its Use The Thickness Gauge Includes A Distance Displacement Measurement Gauge, A Skirt, A Platen And Support Legs The Distance Displacement Measurement Gauge Includes A Case, A Vertical Stem, And A Vertical Spindle The Stem Extends From The Case The Spindle Is Slidably Supported To Move In An Axial Direction Within The Stem The Case Body Has A Display For Indicating A Linear Displacement Of The Spindle The Skirt Has A Central Through-Hole For Receiving The Stem Of The Gauge And Retaining The Stem In An Upright Position The Measuring Platen Has A Platen Base And A Platen Shaft Extending Upwardly From The Platen Base And Attached To The Spindle The Support Legs Extend Downwardly From The Skirt The Platen Is Below The Skirt |
| 7,478,506 | Clip For Attaching Ceiling Panels To T-Grid | 1/20/2009 | Wendt, Alan C. ; Likozar, Martin E. ; Lehane, James J. | An Adaptor Clip, For Converting A Standard Tee Grid Ceiling To A Snap-Up Panel System, Comprising An Injection-Molded Plastic Body That Includes Gripping Elements For Engaging The Tops Of The Flanges Of The Tee Grid And Support Elements For Mating With The Upstanding Peripheral Flanges Of The Snap-Up Panels The Clip Is Arranged To Be Quickly And Easily Installed Without Tools By Simply Positioning It Against The Lower Faces Of Intersecting Tee Grid Members So That Its Center Underlies The Center Of The Intersection And Rotating It About A Vertical Axis |
| 7,478,787 | Paired Main Tee Clip | 1/20/2009 | Bankston, John D. ; Fletterick, James A. | A Clip For Accurately And Quickly Suspending Pairs Of Spaced Parallel Grid Main Tees From Superadjacent Structural Channels The Clip Works With A Separate Drop Clip That Hooks Over And Depends From The Structural Channel The Paired Main Tee Clip Has A Central Body Region Configured Like A Conventional Grid Tee Bulb Thereby Enabling The Paired Main Tee Clip To Mate With The Drop Clip In The Same Way The Drop Clip Mates With A Conventional Grid Tee Bulb Thereby Achieving A System That Is Cost-Effective In Manufacture And Installation |
| 7,503,430 | Reduced Dust Acoustic Panel | 3/17/2009 | Englert, Mark H. ; Immordino, Jr., Salvatore C. | An Acoustical Panel Includes An Acoustical Layer Having An Interlocking Matrix Of Calcium Sulfate Dihydrate, Polyethylene Glycol And At Least One Of The Group Fibers, A Lightweight Aggregate And Mixtures Thereof The Acoustical Layer Has Voids In The Interlocking Matrix That Are Configured To Absorb Sound The Polyethylene Glycol Is Selected To Agglomerate Dust At Temperatures Generated By Friction When The Panel Is Cut A Method Of Making The Acoustical Panel Includes Making A Slurry Comprising Calcium Sulfate Hemihydrate, Polyethylene Glycol, Water And At Least One Of The Group Consisting Of A Lightweight Aggregate, Fibers And Combinations Thereof Foam Is Added To The Slurry, Preferably At The Mixer Discharge A Continuous Strip Of Acoustical Layer Material Is Formed From The Slurry The Acoustical Panels Are Formed By Cutting The Strip Into Individual Panels Finally, The Partially Hydrated Calcium Sulfate Hemihydrate Is Allowed To Fully Set |
| 7,504,165 | High Strength Flooring Compositions | 3/17/2009 | Lettkeman, Dennis M. ; Wilson, John W. ; Bedwell, William K. | A Composition Is Disclosed For A Mixture To Be Used In Conjunction With Water For Preparing A Slurry That Hydrates To Form A High Strength Flooring Compound The Mixture Includes From About 50% To About 98% By Weight Calcium Sulfate Hemihydrate A Three Repeating Unit Polycarboxylate Dispersant Is Included In The Mixture In Amounts From About 02% To About 10% By Weight The Repeating Units Include A Polyether Repeating Unit, An Acrylic Acid-Type Repeating Unit And A Maleic Acid-Type Repeating Unit A Modifier That Enhances The Efficacy Of The Dispersant Is Also A Component Of The Mixture When Combined With Recommended Amounts Of Water, A Slurry Is Formed That Is Useful As A Flooring Composition |
| 7,507,287 | Activated Carbon As Mercury Release Control Agent In Gypsum Calcination | 3/24/2009 | Luan, Wenqi | A Method For Providing Effective Mercury Release Control During Gypsum Calcination Is Disclosed The Method Comprises Providing A Reactor And Gypsum Containing Mercury; Providing A Mercury Sorbent, Such As Activated Carbon And/Or Derivatives Thereof In The Reactor; And Calcining The Gypsum In The Reactor To Form Stucco The Mercury Contaminant Present In The Gypsum Is Absorbed By The Mercury Sorbent During The Calcination Process The Mercury Content Of The Stucco Is Substantially Similar In Amount To The Mercury Content Of The Uncalcined Gypsum |
| 7,513,768 | Embedment Roll Device | 4/7/2009 | Porter, Michael J. ; Frank, William A. ; George, Lloyd ; Stivender, Eugene Scott ; Blyskis, Alfredas | An Embedment Device Includes A First Integrally Formed Elongate Shaft Rotatably Secured To The Support Frame And Having A First Plurality Of Axially Spaced Disks Axially Fixed To The First Shaft, A Second Integrally Formed Elongate Shaft Rotatably Secured To The Support Frame And Having A Second Plurality Of Axially Spaced Disks Axially Fixed To The Second Shaft, The First Shaft Being Disposed Relative To The Second Shaft To Be Horizontally Aligned And So That The Disks Intermesh With Each Other, And Wherein, When Viewed From The Side, Peripheries Of The First And Second Pluralities Of Disks Overlap Each Other |
| 7,513,963 | Method For Wet Mixing Cementitious Slurry For Fiber-Reinforced Structural Cement Panels | 4/7/2009 | Frank, William A. ; George, Lloyd M. ; Stivender, Eugene Scott | A Wet Mixer Apparatus And Method For Its Use, The Mixer Having A Vertical Mixing Chamber For Forming A Wet Slurry Of A Cementitious Slurry And Water The Vertical Mixing Chamber Is Designed To Provide The Required Amount Of Mixing To Provide Thoroughly Mixed, Uniformly Thin Slurry Within A Mixing Residence Time That Allows For Adequate Supply Of Slurry To Ensure Continuous Operation Of An Associated Cement Panel Production Line Gravity Feeding For Separate Supply Of Cementitious Powder And Water To The Slurry Mixing Area Of The Chamber Without Pre-Mixing Of The Powder And Water Is Also Disclosed |
| 7,516,585 | Grid Tee For Suspension Ceiling | 4/14/2009 | Lehane, Jr., James J. ; Gulbrandsen, Peder J. ; Likozar, Martin E. | In One Embodiment, A Roll Formed Sheet Metal Tee For Grid Type Suspended Ceilings With The Face Of Its Flange Integral With The Stem And The Layers Of The Stem Fixed Together For Improved Torsional Strength An Upper Region Of The Stem Can Have One Or More Of Its Layers Folded To Increase Suspension Wire Breakout Strength A Stiffening Bulb Is Below Suspension Wire Receiving Holes So That A Loop Of The Suspension Wire Through The Tee Has A Narrow Profile And Thereby Avoids Interference With Ceiling Panels During Their Installation Or Removal Other Embodiments Of A Tee Share The Feature Of A Narrow, Suspension Wire Receiving Upper Stem Portion |
| 7,516,909 | Continuous Slurry Dispenser Apparatus | 4/14/2009 | Kaligian, Ii, Raymond A. ; Messer, James E. ; Lettkeman, Dennis ; Immordino, Salvatore C. ; Ross, Timothy | An Apparatus For Mixing An Additive Into A Fluid To Form A Settable Mixture Includes A Main Fluid Passageway Having An Inlet For Receiving A Supply Of The Fluid And An Outlet For Dispensing The Fluid, The Passageway Having A Longitudinal Axis The Apparatus Includes A Control Valve Defining A Portion Of The Main Fluid Passageway And Configured For Selectively Controlling The Flow Of Fluid In The Passageway, An Additive Injector Disposed In The Passageway And Having An Emitter Disposed In Close Relationship With The Axis And Oriented Toward The Outlet A Static Mixer Is Disposed Between The Injector And The Outlet For Enhancing The Uniform Mixing Of The Additive And The Fluid Connection Points Between The Inlet, The Valve And The Static Mixer Are Configured For Smooth Transition Of Fluid And The Prevention Of At Least One Of The Collection And Premature Setting Of The Mixture |
| 7,524,386 | Method For Wet Mixing Cementitious Slurry For Fiber-Reinforced Structural Cement Panels | 4/28/2009 | George, Lloyd M. ; Dubey, Ashish ; Stivender, Eugene Scott | A Process Employing A Wet Mixer Having A Vertical Mixing Chamber For Forming A Wet Slurry Of A Cementitious Powder And Liquid The Vertical Mixing Chamber Is Designed To Provide The Required Amount Of Mixing To Provide Thoroughly Mixed, Uniformly Thin Slurry Within A Mixing Residence Time That Allows For Adequate Supply Of Slurry To Ensure Continuous Operation Of An Associated Cement Panel Production Line Gravity Feed For Supply Of Cementitious Powder And Water To The Slurry Mixing Area Of The Chamber Is Also Disclosed |
| 7,543,708 | Plastic Bag For Fine Powders | 6/9/2009 | Doyle, Stanley B. ; Boggia, George W. ; Immordino, Jr., Salvatore C. | A Method Of Making And Filling A Plastic Bag Includes The Steps Of Providing A Bag Having A Plurality Of Microperforations; Filling The Bag With A Powdered Product; Securing The Bag; Removing At Least A Portion Of Entrapped Air In The Bag Through The Microperforations; And Sealing The Microperforations A Product Includes A Bag Configured For Being Formed From A Plastic Film Into Which A Plurality Of Microperforations Have Been Created The Bag Contents Include Less Air Than That Present In The Bag When The Top And The Bottom Were Secured, At Least A Portion Of The Air Sealed Inside The Bag Having Been Expelled Through The Microperforations A Sealant Is Used For Sealing The Microperforations |
| 7,544,242 | Effective Use Of Dispersants In Wallboard Containing Foam | 6/9/2009 | Liu, Qingxia ; Shake, Michael P. ; Blackburn, David R. ; Hinshaw, Stewart | Effective Use Of Dispersants In Wallboard Containing Foam Results From A Method Where Stucco Is Mixed With A First Dispersant And A First Quantity Of Water To Form A Gypsum Slurry A Soap Is Blended With A Second Dispersant And A Second Quantity Of Water To Make A Foam Subsequently, The Foam Is Combined With The Slurry Choice Of Different First And Second Dispersants And Their Relative Amounts Allows Control Of The Size Distribution Of The Foam Bubbles In The Slurry And The Resulting Voids In The Gypsum Core Use Of The Same Dispersant In Both The Mixer And The Foam Water Provides A Boost In Efficacy Of The Dispersant |
| 7,556,791 | Gypsum Anhydrite Fillers And Process For Making Same | 7/7/2009 | Bolind, Michael Lawrence ; Porter, Michael J. ; Nelsen, Christopher Robert | A Process Is Disclosed For Making Dead Burn Calcium Sulfate Anhydrite The Process Includes A Slurry Calcination Step To Produce Calcium Sulfate Anhydrite Followed By Removing Free Water From The Anhydrite While Avoiding Substantial Rehydration Also Disclosed Are Dead Burn Calcium Sulfate Anhydrite Particles With High Aspect Ratios, Eg Fibers Having An Average Aspect Ratio Of At Least 4:1, Or Very Fine Particle Size, Eg, At Or Below 2 Micrometers Average, Combined With Very Low Water Content, Eg, Less Than 05, Preferably Less Than 03, Wt % Water These Particles Are Typically Useful As Fillers |
| 7,572,328 | Fast Drying Gypsum Products | 8/11/2009 | Lettkeman, Dennis M. ; Liu, Qingxia ; Wilson, John W. ; Randall, Brian S. ; Blackburn, David R. ; Shake, Michael P. | A Slurry Is Made Including Water, At Least 50% By Weight Calcium Sulfate Hemihydrate, And A Specific Polycarboxylate Dispersant Prepared Using At Least Three Repeating Units A First Repeating Unit Is A Vinyl Ether-Type Repeating Unit A Second Repeating Unit Includes A Maleic Acid-Type Repeating Unit A Third Repeating Unit Includes An Acrylic Acid-Type Repeating Unit The Polymer Dispersant Has A Molecular Weight Of From About 20,000 To About 80,000 Daltons The Slurry Made From This Composition Can Be Made At Reduced Water Levels To Speed Drying And Reduce Drying Costs |
| 7,572,329 | Method Of Making A Gypsum Slurry With Modifiers And Dispersants | 8/11/2009 | Liu, Qingxia ; Blackburn, David R. ; Shake, Michael P. ; Randall, Brian ; Wilson, John W. ; Lettkeman, Dennis M. | In A Method Of Making A Gypsum Slurry, A Polycarboxylate Dispersant, A Modifier And A Hydraulic Material Comprising Stucco Are Selected For Use In The Slurry These Components Are Then Combined With Water To Form A Slurry, Where The Modifier Is Added To The Slurry Prior To Formation Of A Slurry Phase By The Water, The Stucco And The Dispersant The Modifier Has Been Shown To Be Less Effective When Added After The Dispersant And Stucco Have Been Contacted In An Aqueous Slurry In A Preferred Embodiment, An Amount Of Stucco Is Obtained And The Modifier And Dispersant Are Selected A Predissolved Solution Of A Dispersant And Modifier Is Prepared In Water To Form A Solution Prior To The Addition Of The Stucco After Mixing The Solution, The Stucco Is Added To Form The Slurry Optionally, The Slurry Is Then Shaped Into A Product And Allowed To Set |
| 7,578,106 | Wall Molding For Suspended Ceiling | 8/25/2009 | Burns, Garry W. ; Wendt, Alan C. ; Likozar, Martin E. | A Seismic Wall Molding For Suspended Ceiling Systems That, Although Sufficiently Wide Across Its Horizontal Ceiling Supporting Leg, Is Visually Unobtrusive By Virtue Of A Stepped, Shadow Style Configuration The Stepped Horizontal Leg Configuration Allows The Wall Molding To Resist Buckling Or Bending Deformation In The Horizontal Leg When A Vertical Leg Of The Molding Is Tightly Secured Against A Non-Flat Wall Surface Factory Ends On The Wall Molding Are At Parallel 45 Degree Planes To Facilitate Making Inside And Outside Corners At The Job Site A Factory Supplied Template Simplifies Corner Construction A Splice Piece Fits Tightly On The Upper Sides Of The Horizontal Legs At A Straight-Line Joint Between Abutting Lengths Of The Wall Molding To Maintain These Elements In Alignment |
| 7,587,778 | Wallboard Taping Knife With Polymeric Hammer | 9/15/2009 | Rosso, Aaron Charles ; Myers, Matthew Earle ; Fong, Scott | A Tool Includes A Blade With A Working End And A Handle End Opposite The Working End, A Handle Secured To The Handle End And Having A Blade End And A Hammer End, A Hammer Secured To The Hammer End And Having A Body Made Of A Relatively Hard, Lightweight Polymeric Material |
| 7,588,634 | Process For Manufacturing Ultra Low Consistency Alpha- And Beta- Blend Stucco | 9/15/2009 | Lynn, Michael R. ; Song, W. David ; Liu, Qingxia ; Yu, Qiang ; Cloud, Michael L. | A Process Is Disclosed For Making A Blend Of Alpha- And Beta-Stucco Including A Slurry Calcination Step To Produce Alpha Calcium Sulfate Hemihydrate Followed By A Fluidized Bed Calcination Step To Produce Beta Calcium Sulfate Hemihydrate The Process Starts With 50-75% Gypsum-Containing Solids Slurry, And Then Steam Calcines The Slurry In A First Reactor To Form Partially Calcined Gypsum Slurry Which Contains Calcium Sulfate Dihydrate And Alpha Calcium Sulfate Hemihydrate The Partially Calcined Slurry Is Then Dewatered Then The Filter Cake Is Fed Into A Kettle To Complete The Calcination Process By Converting The Calcium Sulfate Dihydrate Of The Filter Cake Material Into Beta Calcium Sulfate Hemihydrate |
| 7,601,214 | Modified Landplaster As A Wallboard Filler | 10/13/2009 | Blackburn, David R. ; Liu, Qingxia ; Shake, Michael P. | A Gypsum Slurry Includes Calcium Sulfate Hemihydrate, Water And Calcium Sulfate Dihydrate Is Coated With A Hydrophilic, Dispersible Coating The Coating Is Less Soluble Than The Calcium Sulfate Hemihydrate To Delay Exposure Of The Landplaster To The Remainder Of The Slurry, Preventing Premature Crystallization And The Early Stiffening That Accompanies It A Another Embodiment Is A Gypsum Slurry That Includes Calcium Sulfate Hemihydrate, A Polycarboxylate Dispersant, Water And Coated Calcium Sulfate Dihydrate In This Case, The Hydrophilic, Dispersible Coating Is Selected To Serve As A Modifier To Enhance The Ability Of The Dispersant To Fluidize The Gypsum Slurry |
| 7,608,347 | Modifiers For Gypsum Slurries And Method Of Using Them | 10/27/2009 | Lettkeman, Dennis M. ; Shake, Michael P. ; Liu, Qingxia ; Wilson, John W. ; Randall, Brian ; Blackburn, David R. | An Improved Gypsum Slurry That Includes Water, Calcium Sulfate Hemihydrate, A Polycarboxylate Dispersant And A Modifier The Modifier Is Chemically Configured To Improve The Efficacy Of The Polycarboxylate Dispersant Preferred Modifiers Include Cement, Lime, Slaked Lime, Soda Ash, Carbonates, Silicates And Phosphates |
| 7,634,881 | Cross Panel | 12/22/2009 | Ahren, Gregory M. ; Bankston, John D. | A Cross Panel For A Grid Type Suspended Ceiling Comprising A Sheet Metal Body Forming A Rectangular Face Adapted To Close The Space Between The Flanges Of A Pair Of Parallel Grid Tees The Panel Has Four Connectors Each Adjacent A Respective Corner Of The Panel Face And Adapted To Extend Through A Slot In The Web Of The Adjacent Grid Tee For Interlocking The Panel To The Tees In A Manner That Maintains The Parallel Spacing And Alignment Of The Tees And Affords A Simple, Aesthetically Pleasing Appearance |
| 7,637,065 | Panel Attachment Clip | 12/29/2009 | Ahren, Gregory M. ; Bankston, John D. ; Fletterick, James A. | A Clip For Suspending Ceiling Panels From A Horizontal Channel Having A C-Shape Formed By A Vertical Web And Integral Opposed Horizontal Upper And Lower Flanges, The Clip Comprising A Sheet Metal Body, The Body Including A Vertical Web Extending Between Upper And Lower Portions, The Upper Portion Being Configured To Overlie The Horizontal Upper Flange Of The Channel When Installed Thereon, The Lower Portion Being Configured To Lie Below The Horizontal Lower Flange Of The Channel, The Lower Portion Including A Generally Upstanding Hook Section Adapted To Be Received In A Downwardly Open Channel On The Ceiling Panel Beneath The C-Shaped Channel To Enable The Clip To Support The Panel By Transferring The Weight Of The Panel To The C-Shaped Channel, The Hook Section Being Fixed Against Horizontal Movement Relative To The Body Vertical Web |
| 7,637,996 | Gypsum Products Utilizing A Two-Repeating Unit Dispersant And A Method For Making Them | 12/29/2009 | Blackburn, David R. ; Shake, Michael P. ; Liu, Qingxia | A Gypsum Slurry Includes Water, A Hydraulic Component Including Stucco And A Polycarboxylate Dispersant The Dispersant Has Two Repeating Units Wherein The First Repeating Unit Is An Olefinic Unsaturated Mono-Carboxylic Acid Repeating Unit Or An Ester Or Salt, And The Second Repeating Unit Is A Vinyl Or Allyl Group Bound To A Polyether By An Ether Linkage The Slurry Can Be Made Into A Gypsum Panel |
| 7,647,705 | T-Square With Finger Guard | 1/19/2010 | Rosso, Aaron Charles ; Patel, Amar Arvind ; Myers, Matthew Earle ; Fong, Scott | A Finger Guard For Use With A T-Square Having A Head And A Blade Includes An Elongated Body, Two Finger-Shielding Surfaces Extending Along A Longitudinal Axis Of Said Body For Accommodating An Installer's Thumb, A Lower Edge On The Body That Is Attachable To The Blade Of The T-Square, And A Peak Edge Opposite The Lower Edge And Separating Upper Ends Of The Surfaces |
| 7,647,744 | Acoustic Isolator Clip For Isolating Wallboard Support Channels From Frame Member | 1/19/2010 | Payne, Jr., Stephen W. | A Clip For Use In Acoustically Isolating A Wallboard Support Channel From A Frame Member, The Support Channel Having At Least One Mounting Point, Includes A First Portion Positionable Between A First Surface Of The Channel And The Frame Member, A Second Portion Positionable In Contact With A Second, Opposite Surface Of The Channel, And A Bracket Connecting Said First And Second Portions The First And Second Portions And The Bracket Each Have At Least One Fastener Opening In Registry With Corresponding Openings On The Other Of The First And Second Portions Such That A Fastener Passing Through The Openings And The Mounting Point Is Acoustically Isolated From The Bracket And From The Channel |
| 7,658,046 | Moir_ Ceiling Panels | 2/9/2010 | Lynch, Diane Irene ; Wendt, Alan C. | The Present Invention Relates To A Ceiling Panel For Suspended Ceiling Systems That Is Designed To Create A Moir_ Effect When Viewed From Below The Moir_ Ceiling Panels Are Designed To Fit Into A Standard Suspended Ceiling Grid And Include A Semi-Transparent Upper Layer, A Semi-Transparent Lower Layer, And A Light Diffusing Layer The Lower Layer Includes A Surface With A Plurality Of Light Passable Apertures Or Surface Areas To Allow Light From Above The Suspended Ceiling To Pass Through The Upper Layer Also Includes A Surface With A Plurality Of Light Passable Apertures Or Surface Areas And Is Connected To The Lower Layer To Form The Moir_ Panel The Light Diffusing Layer Is Connected To The Upper Panel And Is Design To Intensify The Moir_ Pattern While Simultaneously Concealing The Area Above The Panel |
| 7,658,047 | Suspended Ceiling System | 2/9/2010 | Bankston, John D. ; Ahren, Gregory M. ; Harcula, John | A Suspended Ceiling Comprising A Pair Of Parallel Main Grid Tees, The Tees Being Of The Type Having Its Panel Supporting Flange Forming A Hollow With A Downwardly Open Slot, A Plurality Of Identical Stabilizer Bars Spacing Said Main Grid Tees A Predetermined Distance, Trim Strips Assembled On Said Main Grid Tees, The Trim Strips Each Having A First Portion Hooked Into The Hollow Flange Of A Respective Tee And A Second Portion Abutting A Web Of The Respective Tee, The Stabilizer Bars Being Arranged To Engage Opposite Sides Of Reinforcing Bulbs Of The Main Grid Tees To Hold The Same Against Relative Lateral Horizontal Movement From Their Desired Positions, The Stabilizer Bars Engaging The Trim Strips In A Manner That Holds Their Second Portions In Abutment With The Webs Of Their Respective Tees The Stabilizer Bars Are Formed Of Sheet Metal And Have Bendable Tabs That Can Be Bent To Hold Said Trim Strip Second Portions In Contact With The Webs Of Their Respective Tees The Trim Strips Have A G-Shaped Profile That Is Adapted To Receive Portions Of Cross Tee Connectors Assembled Through Slots In The Webs Of The Main Grid Tees |
| 7,670,427 | Very Fast Setting Cementitious Composition With High Early-Age Compressive Strength | 3/2/2010 | Perez-Pena, Marianela ; Peng, Yanfei ; Veeramasuneni, Srinivas | A Method Of Making A Rapid Setting Composition For Cement Boards Is Disclosed Compositions Including Portland Cement, Fly Ash, Gypsum, Alkanolamine And Phosphate Are Disclosed A Synergistic Interaction Between The Alkanolamine And Phosphate Increases The Effectiveness Of Accelerating Reactions Thus Allowing For Quick Setting And Increased Early-Age Compressive Strength Compositions |
| 7,670,520 | Multi-Layer Process For Producing High Strength Fiber-Reinforced Structural Cementitious Panels With Enhanced Fiber Content | 3/2/2010 | Dubey, Ashish | A Process For Producing Fiber-Reinforced Structural Cementitious Panels Made Of At Least One Layer Of Fiber Reinforced Cementitious Slurry, The Process For Each Such Layer Of Slurry Including Providing A Moving Web; Depositing A First Layer Of Individual, Loose Fibers Upon The Web; Depositing A Layer Of Settable Slurry Upon The Deposited First Layer Of Individual, Loose Fibers; Depositing A Second Layer Of Individual, Loose Fibers Upon The Deposited Layer Of Settable Slurry; And Actively Embedding Both Layers Of Individual, Loose Fibers Into The Layer Of Slurry To Distribute The Fibers Throughout The Slurry |
| 7,677,004 | Conformable Wide Wall Angle | 3/16/2010 | Lalonde, Paul D. | A Wide Wall Angle Useful In Locations Of Seismic Activity To Support Ceiling Tile And Grid Tees Of A Suspended Ceiling Comprising An Assembly Of An Elongated Base Angle And An Elongated Extension Strip, The Base Angle Having Generally Perpendicular Legs Integral With One Another And Intersecting At A Longitudinally Extending Corner, One Leg Being Adapted To Be Fixed Against A Wall With The Corner Down, And The Other Adapted To Project Horizontally From The Wall, The Extension Strip Having A Face With Greater Than The Width Of The Horizontal Leg, The Extension Strip Having A Multiple Layer Construction, Two Layers Of The Extension Strip Being Held Together In Close Parallel Relation By An Intermediate Web Integral With The Layers, At Least Portions Of The Two Layers Being Arranged To Frictionally Engage At Least A Part Of The Horizontal Leg Of The Base Angle Spaced From The Corner Such That The Strip Can Be Assembled On And Frictionally Retained On The Horizontal Leg Of The Base Angle, The Horizontal Leg Of The Base Angle Being Disposed Between The Two Layers Of The Extension Strip |
| 7,690,168 | Wall Mold Attachment Clip | 4/6/2010 | Lalonde, Paul D | A Clip For Attaching The End Of A Grid Tee To A Wall Angle The Clip, In Various Forms, Is Arranged To Frictionally Lock Between The Hem Of The Horizontal Leg Of The Wall Angle And The Vertical Leg The Clip, Typically, Has A Pair Of Opposed Open Hems Forming Channels In Which The Flange Of The Tee End Is Received To Join The Tee To The Clip The Clip Can Be Elongated Horizontally To Accommodate Movement Of The Grid During Seismic Activity The Clip Can Be Used To Trim The Edges Of A Ceiling Island And Can Be Made To Accommodate Angular Intersections Of The Grid With A Wall Or Island Edge |
| 7,703,243 | Ceiling Tile Construction | 4/27/2010 | Baig, Mirza A. | A Ceiling Tile Of Gypsum And Cellulose Fibers Formed Into A Board By Initially Mixing The Fibers And Gypsum In A Water-Based Slurry That Is Felted And Thereafter Pressed And Dried With A Desired Board Thickness, The Dried Board Being Processed To Form A Plurality Of Holes In A Face Thereof Through At Least The Majority Of The Thickness Of The Board, The Collective Volume Of The Holes Being Sufficient To Reduce The Weight Of The Board By At Least 10% And Increase The NRC Exhibited By The Board Over That Which Would Otherwise Be Found In A Board Of The Same Composition Without Such Holes |
| 7,703,258 | Main Tee Connection | 4/27/2010 | Lalonde, Paul D. ; Lehane, James J. ; Coyne, Daniel J. | A Main Tee With Separate Clips Affixed On Its Ends For Splicing The Tee With Identical Tees In End-To-End Butt Joints The Tee And Clip Form A Pocket For Receiving The Projecting End Of An Opposing Clip With A Uniform Low Insertion Force The Clip Is Self-Aligning With The Pocket And When Interconnected The Clips Precisely Align The Coupled Tees Both Vertically And Horizontally The Clips, Formed Of Relatively Strong Material, Have Mutually Engageable Locking Surfaces That Ensure A Strong Joint |
| 7,712,267 | Self Centering Shaft Wall System | 5/11/2010 | Lehane, James Joseph ; Laux, Francis Harold ; Black, Clifford | A J-Runner, Used In The Construction Of Shaft Walls In Buildings Is Provided With A Lifting Element Or Ledge Or Both To Permit Simple Centering Of Studs Or Shaft Walls Or Both By Providing A Lifting Member In A Lower J-Runner, The Studs Or Shaft Walls Or Both Can Rest Upon The Lifting Member To Assist In Vertically Centering The Studs Or Shaft Walls Or Both When The Shaft Is Fully Constructed |
| 7,712,274 | Downwardly Accessible Lift-And-Shift Ceiling System | 5/11/2010 | Wendt, Alan C. ; Koski, Gerald L. | A Suspended Ceiling System Comprising Grid Runners And Downwardly Accessible Generally Planar Tiles Mounted On The Grid Runners, Peripheral Tile Edges Having Portions Extending Horizontally Underneath An Adjacent Grid Runner, Opposed Tile Edges Having A Downwardly Facing Support Surface, Said Opposed Edges Having A Generally Vertical Abutment Surface Above Its Support Surface And Resting On An Adjacent Horizontal Flange Portion Of A Grid Runner, The Runners Having Locating Surfaces Of Limited Height Above Said Flange Portions And Engageable With The Abutment Surfaces, The Runners And Tiles Being Arranged To Permit One Of The Opposed Tile Edges To Be Lifted So That Its Abutment Surface Can Be Raised And Thereafter Be Shifted Towards The Runner Adjacent The Lifted Edge A Distance Sufficient To Allow The Opposite Edge To Drop Below The Flange Portion Of Its Associated Runner |
| 7,718,019 | Methods Of And Systems For Preparing A Heat Resistant Accelerant Slurry And Adding The Accelerant Slurry To A Post-Mixer Aqueous Dispersion Of Calcined Gypsum | 5/18/2010 | Wittbold, James R. ; Groza, Brent | Methods And Systems Are Provided For Preparing A Heat Resistance Accelerator (HRA) Slurry Also Provided Are Methods And Systems For Introducing A HRA Slurry To An Aqueous Dispersion Of Calcined Gypsum In A Discharge Apparatus Downstream Of A Stucco Mixer In Which The Dispersion Was Prepared These Methods And Systems Are Useful In The Production Of Various Gypsum Products Such As Board Including Wallboard And Ceiling Tiles |
| 7,730,690 | Compression Post Assembly For Wind Up-Lift Of Suspension Soffits | 6/8/2010 | Miller, Gary F. ; Sallay, Gregory L. | A Compression Post Assembly For A Soffit, Canopy Or Like Structure Utilizing A Suspended Grid Of Inverted Tees To Support The Soffit Surface Forming Panels Comprising A Main Strut And A Saddle Coupling, The Main Strut Having A Hollow Cross-Section Along Substantially Its Full Length Between Its Upper And Lower Ends, The Saddle Coupling Being Adapted To Connect The Lower End Of The Strut To A Grid Tee By Receiving Separate Self-Tapping Screws, One In Each Of The Main Strut And Grid Tee, The Saddle Coupling Having A Pair Of Spaced Depending Legs, The Legs Being Spread Apart By A Distance Sufficient To Straddle The Bulb Of A Conventional Grid Tee And Having A Length Sufficient To Engage The Upper Surfaces Of The Lower Flange Of The Grid Tee And Thereby Stabilize The Grid Tee Against Pivotal Motion About A Horizontal Axis |
| 7,731,794 | High Starch Light Weight Gypsum Wallboard | 6/8/2010 | Yu, Qiang ; Song, Weixin D. ; Lynn, Michael R. | The Invention Generally Provides Gypsum-Containing Slurries Including Stucco, Naphthalenesulfonate Dispersant, And Pregelatinized Starch The Naphthalenesulfonate Dispersant Is Present In An Amount Of About 01%-30% By Weight Based On The Weight Of Dry Stucco The Pregelatinized Starch Is Present In An Amount Of At Least About 05% By Weight Up To About 10% By Weight Of Pregelatinized Starch By Weight Based On The Weight Of Dry Stucco In The Formulation Other Slurry Additives Can Include Trimetaphosphate Salts, Accelerators, Binders, Paper Fiber, Glass Fiber, And Other Known Ingredients The Invention Also Comprises The Gypsum-Containing Products Made With Such Slurries, For Example, Gypsum Wallboard, And A Method Of Making Gypsum Wallboard |
| 7,732,032 | Lightweight, Fiber-Reinforced Cementitious Panels | 6/8/2010 | Dubey, Ashish | Lightweight, Fiber Reinforced, Cementitious Panels Possessing Exceptional Toughness For Use As Building Components In Applications Such As Roofing Elements, Siding Elements, Framing And Sheathing Elements, And Substrate Elements For Installation Of Floor Finishes In Residential And Other Building Construction Types The Panels Employ A Continuous Phase Resulting From The Curing Of An Aqueous Mixture Of Inorganic Binder, PVA Fibers And Lightweight Filler The Inorganic Binder May Be, For Example, Hydraulic Cement Alone, Or A Combination Of Hydraulic Cement And Pozzolan/S, Or A Combination Of Hydraulic Cement, Alpha Hemihydrate, Active Pozzolan And Optionally Lime The PVA Fibers Reinforce The Continuous Phase And Are Randomly Distributed Throughout The Composite Typical Panels Of The Invention Have A Density Of 60-85 Pcf |
| 7,732,043 | Ceiling Tile With Non Uniform Binder Composition | 6/8/2010 | Baig, Mirza A. ; Schmitt, William A. | A Ceiling Tile Product And Method In Which A Slurry Formed Mat Primarily Comprising Mineral Wool And Binder Is Provided With A Binder Enhancement Zone At Its Face The Binder Enhancement Zone Can Reduce The Total Required Latex Content, Reduce The Amount Of Finish Or Paint Needed To Achieve A Commercially Acceptable Color And Improve Noise Reduction |
| 7,735,285 | Acoustical Mounting Bracket For Attaching Ceiling Suspension To Floor Joists | 6/15/2010 | Payne, Jr., Stephen W. | A Bracket For Use In Acoustically Isolating A Ceiling Support Grid From A Frame Member Includes A Planar Body Having A Grid Receiving Formation And At Least One Mounting Aperture, And A Resilient Grommet Secured Relative To Each Aperture For Acoustically Isolating A Fastener Passing Through The Aperture Into The Frame Member |
| 7,736,720 | Composite Light Weight Gypsum Wallboard | 6/15/2010 | Yu, Qiang ; Song, Weixin David | The Invention Provides A Light Weight Composite Gypsum Board Including A Foamed Low Density Set Gypsum Core, A Top Non-Foamed (Or Reduced-Foamed) Bonding High Density Layer And A Bottom Non-Foamed (Or Reduced-Foamed) Bonding High Density Layer, A Top Cover Sheet Bonded To The Foamed Low Density Set Gypsum Core By The Top Non-Foamed (Or Reduced-Foamed) Bonding High Density Layer, And A Bottom Cover Sheet Bonded To The Foamed Low Density Set Gypsum Core By The Bottom Non-Foamed (Or Reduced-Foamed) Bonding High Density Layer The Foamed Low Density Set Gypsum Core Is Prepared Having A Density Of Less Than About 30 Pcf Using Soap Foam In The Gypsum-Containing Slurry The Combination Of Components Provide A Composite Gypsum Board Having Light Weight And High Strength |
| 7,736,764 | Surface Enhancing Coating For Gypsum-Containing Floor Underlayments | 6/15/2010 | Liu, Qingxia ; Ellicson, John W. ; Mcdonald, David | A Coating For Preparing A Floor Underlayment To Receive An Adhesive Includes A Water-Soluble, Latex Polymer, A Defoamer And A Dual-Function Surface Enhancing Agent The Surface Enhancing Agent Includes A Set Accelerator That Also Functions To Cross Link The Adhesive, Hardening The Surface Of The Underlayment Using At Least Two Mechanisms One Embodiment Of The Invention Is A Dry Mixture That Forms A Coating When Added To Water The Dry Mixture Includes From About 10% To About 50% Of The Redispersible Polymer By Weight Based On The Mixture, From About 50% To About 90% Of The Surface Enhancing Agent And From About 015% To About 025% Of The Defoamer By Weight Based On The Mixture Other Embodiments Describe A Liquid Coating Formed By Adding From About 1 To About 8 Parts Water To 1 Part Of The Dry Mixture By Volume Based On The Mixture |
| 7,754,006 | Process For Manufacturing Ready-Mixed Setting Alpha-Calcium Sulphate Hemi-Hydrate And Kit For Same | 7/13/2010 | Liu, Qingxia ; Natesaiyer, Kumar ; Yu, Qiang | A Process For Making Calcined Gypsum In Slurry Or Powder Form The Process Includes Adding At Least Two Types Of Crystal Modifiers To The Slurry The First Crystal Modifier Is To Control Crystal Morphology Of The Calcined Gypsum (Such As Succinct And/Or Malic Acid) The Second Crystal Modifier Is To Prevent Or Retard Setting To Control Set Time (Such As Tetrasodium Pyrophosphate (TSPP)) To Form A Water Stable Product An Accelerator Is Typically Added At The Site Of Use For Specific Applications Such As Setting Type Joint Compound, Media Casting, Exterior/Interior Coating, And Sprayable Fireproofing A Composition Made By The Process And A Kit For Using The Composition Are Also Disclosed |
| 7,754,007 | Gypsum Mixtures For Forming Solids | 7/13/2010 | Lettkeman, Dennis ; Wilson, John W. ; Kaligian, Ii, Raymond A. ; Ball, Brian K. | An Example Embodiment Of A Mixture To Be Employed In Conjunction With Water For Preparing A Slurry That Hydrates To Form A High Strength Flooring Compound Comprises About 50% To About 98% By Weight Calcium Sulfate Hemihydrate, About 0002% To About 1% By Weight Polysaccharide, And About 002% To About 25% By Weight Of A Lignosulfanate |
| 7,754,052 | Process And Apparatus For Feeding Cementitious Slurry For Fiber-Reinforced Structural Cement Panels | 7/13/2010 | Frank, William A. ; Stivender, Eugene Scott ; George, Lloyd M | A Head-Box For Depositing Slurry Upon A Moving Web Including A Main Metering Roll, A Companion Roll Disposed In Closely Spaced Relation To The Metering Roll And A Vibrating Gate Which Forms A Nip Between The Metering Roller And The Gate The Nip Is Arranged To Retain A Supply Of The Slurry, And The Rolls Are Driven So Slurry Retained In The Nip Progresses Over An Upper Outer Peripheral Surface Of The Metering Roll To Be Deposited Upon The Web Also, Preferably Included Is A Doctor Blade Disposed In Operational Relationship To The Metering Roll For Directing The Slurry Downwardly From The Outer Metering Roll Surface To A Point Above The Surface Of A Carrier For A Fiberglass Layer Upon Which The Slurry Layer Is Deposited The Vibrating Gate And Doctor Blade May Be Pivotally Mounted To Either Side Of The Surfaces Of The Head-Box |
| 7,758,980 | Gypsum-Containing Board And Tile, And Method For Producing Same | 7/20/2010 | Yu, Qiang ; Sucech, Steven W. ; Groza, Brent E. ; Mlinac, Raymond J. ; Jones, Frederick T. ; Henkels, Paul J. | The Invention Provides A Set Gypsum-Containing Product Having Increased Resistance To Permanent Deformation And A Method For Preparing It Comprising Forming A Mixture Of A Calcium Sulfate Material, Water, And An Appropriate Amount Of One Or More Enhancing Materials Chosen From Condensed Phosphoric Acids, Each Of Which Comprises 2 Or More Phosphoric Acid Units; And Salts Or Ions Of Condensed Phosphates, Each Of Which Comprises 2 Or More Phosphate Units The Mixture Is Then Maintained Under Conditions Sufficient For The Calcium Sulfate Material To Form A Set Gypsum Material |
| 7,765,762 | Ceiling Panel | 8/3/2010 | Gulbrandsen, Peder J. ; Wendt, Alan C. | A Ceiling Panel Is Provided For Use In A Grid-Type Suspended Ceiling, Wherein The Grid Includes A Plurality Of Spaced Grid Runners The Ceiling Panel Comprises A Tile Base With Perimeter Segments And Perimeter Profiles Along At Least A Portion Of At Least Two Of The Perimeter Segments Each Profile Is Supportable By The Grid Runners During Suspension A Facing Material Is Secured Across The Perimeter Segments, And Extends Beyond The Perimeter Profiles In Order To At Least Partially Conceal Two Of The Grid Runners When The Tile Is Suspended From The Two Grid Runners And Viewed From Below |
| 7,765,813 | Apparatus And Process For Cooling And De-Steaming Calcined Stucco | 8/3/2010 | Bolind, Michael L. ; Nelson, Christopher R. ; Petersen, Bruce L. ; Porter, Michael J. | The Present Invention Is An Apparatus And Process For Cooling And De-Steaming Hot Calcined Stucco Used In The Production Of Gypsum Boards Or Bagged Plaster The Apparatus Is A Fluid Bed Stucco Cooler And Comprises A Cooler Housing Having A Plenum Having A Stucco Inlet And Stucco Outlet The Stucco Cooler Includes A Rotating Disk In The Plenum The Rotating Disk Includes Nozzle For Spraying Fluid, And Is Attached To A Rotable Shaft Extending From The Side Of The Cooler Also Includes A Fluidization Pad And Agitator To Help To Mix The Air And The Stucco Powder To Insure Fluidization, Prevent Channeling, And Prevent The Stucco Powder From Building Up On The Various Components The Air Also Forces Steam From The Hot Calcined Stucco Out Through An Air Outlet Located At The Top Of The Stucco Cooler, Thereby De-Steaming The Stucco The Stucco Flows Through The Plenum And Passes Over The Cooling Coils, Thereby Cooling The Stucco As It Reaches The Stucco Outlet |
| 7,767,019 | Gypsum Products Utilizing A Two-Repeating Unit Dispersant And A Method For Making Them | 8/3/2010 | Liu, Qingxia ; Shake, Michael P. ; Blackburn, David R. ; Wilson, John W. ; Randall, Brian ; Lettkeman, Dennis M. | A Gypsum Slurry Includes Water, A Hydraulic Component Including Stucco And A Polycarboxylate Dispersant The Dispersant Has Two Repeating Units Wherein The First Repeating Unit Is An Olefinic Unsaturated Mono-Carboxylic Acid Repeating Unit Or An Ester Or Salt, And The Second Repeating Unit Is A Vinyl Or Allyl Group Bound To A Polyether By An Ether Linkage The Slurry Can Be Made Into A Gypsum Panel |
| 7,770,349 | Seismic Clip For Grid Tee Control Joint | 8/10/2010 | Tedesco, Lee M. ; Lalonde, Paul D. ; Lerner, Ilya | A Clip For Bridging A Longitudinal Gap Between A Pair Of Grid Tee Lengths, The Clip Having A Cruciform Shape In Plain View Formed By A Set Of Four Integral Arms, One Pair Of The Arms Extending Along A First Line In Opposite Directions From A Center Of The Clip, And Another Pair Of Arms Extending Along A Line Perpendicular To Said First Line In Opposite Directions From The Center Of The Clip, Said Arms When Oriented For Installation Having An Inverted U-Shape Cross-Section Proportioned To Fit Over A Respective One Of Four Intersecting Lengths Of Grid Tees Having An Inverted T-Shape With A Reinforcing Hollow Bulb At Its Upper Edge, At Least One Of Said Arms Having A Longitudinally Extending Fastener Receiving Slot And Other Of Said Arms Having Locations For Receiving Respective Fasteners, Said Slot And Receiving Locations Each Being Arranged To Receive A Fastener And Allow The Fastener To Be Anchored Into The Bulb Of An Associated Tee, Said Slot Being Arranged To Allow Its Respective Grid Tee Length To Telescope Within The Associated Arm |
| 7,771,851 | Gypsum-Containing Products Containing Alpha Hemihydrate | 8/10/2010 | Song, Weixin David ; Yu, Qiang ; Liu, Qiangxia | The Invention Provides Gypsum Wallboard, Made From Gypsum-Containing Slurries Having Outstanding Hydration Rate Characteristics Comprising Alpha-Hemihydrate Ground To A Particular Particle Size Distribution Range And Having A Blaine Surface Area In The Range From About 3100 Cm2/G To About 9000 Cm2/G, Alone Or In Combination With Beta-Hemihydrate |
| 7,776,170 | Fire-Resistant Gypsum Panel | 8/17/2010 | Yu, Qiang ; Jones, Frederick T. ; Liu, Qingxia | A Method Of Continuously Forming A Multilayer Panel Includes Making A Gypsum Slurry, Then Dividing The Gypsum Slurry Into At Least A Primary Gypsum Slurry And A Secondary Gypsum Slurry An Additive Slurry Having Water And An Intumescent Material Is Created, Then Added To The Secondary Gypsum Slurry To Make An Expandable Layer Slurry That Is Spread Over At Least A Portion Of A Facing Material The Primary Gypsum Slurry Is Distributed Over The Secondary Gypsum Slurry Over The Facing Material And The Expanding Layer Slurry To Form A Core Optionally, Another Layer, An Edge Coating, Is Applied To The Expanding Layer For Additional Fire Protection The Edge Coating Includes A Second Intumescent Material During A Fire, The Expanding Layer Expands To Increase The Thickness Of The Fire Exposed Gypsum Panel And The Edge Coating Expands To Seal The Gap Between Adjoining Gypsum Panels |
| 7,776,461 | Gypsum Products Utilizing A Two-Repeating Unit Dispersant And A Method For Making Them | 8/17/2010 | Blackburn, David R. ; Shake, Michael P. ; Liu, Qingxia | A Gypsum Slurry Includes Water, A Hydraulic Component Including Stucco And A Polycarboxylate Dispersant The Dispersant Has Two Repeating Units Wherein The First Repeating Unit Is An Olefinic Unsaturated Mono-Carboxylic Acid Repeating Unit Or An Ester Or Salt, And The Second Repeating Unit Is A Vinyl Or Allyl Group Bound To A Polyether By An Ether Linkage The Slurry Can Be Made Into A Gypsum Panel |
| 7,776,462 | Gypsum Products Utilizing A Two-Repeating Unit Dispersant And A Method Of Making Them | 8/17/2010 | Liu, Qingxia ; Shake, Michael P. ; Blackburn, David R. ; Wilson, John W. ; Randall, Brian ; Lettkeman, Dennis M. | A Gypsum Slurry Includes Water, A Hydraulic Component Including Stucco And A Polycarboxylate Dispersant The Dispersant Has Two Repeating Units Wherein The First Repeating Unit Is An Olefinic Unsaturated Mono-Carboxylic Acid Repeating Unit Or An Ester Or Salt, And The Second Repeating Unit Is A Vinyl Or Allyl Group Bound To A Polyether By An Ether Linkage The Slurry Can Be Made Into A Gypsum Panel |
| 7,788,875 | Trim System Clip For Island Ceiling | 9/7/2010 | Wendt, Alan C. | An Edge Trim System For Suspended Island Ceilings In Which A One-Piece Clip Couples Standard Grid Tees To Standard Wall Molding The Clip Is Arranged To Snap Onto The Grid Tees Where The Ceiling Boundary Is Along A Line Of The Grid And To Be Screw Fastened Onto A Tee Where The Ceiling Boundary Is Other Than Along The Grid The Clip Is Arranged To Snap Into And Retain The Molding In Place Without Fasteners |
| 7,789,645 | Multi-Layer Process And Apparatus For Producing High Strength Fiber-Reinforced Structural Cementitious Panels | 9/7/2010 | Dubey, Ashish ; Chambers, Joe W. ; Greengard, Aaron ; Li, Alfred C. ; Miller, D. Paul ; Porter, Michael J. | A Structural Cementitious Panel, Produced By A Multi-Layer Process Including Providing A Moving Web; B One Of Depositing A First Layer Of Loose Fibers Upon The Web And C Depositing A Layer Of Settable Slurry Upon The Web; D Depositing A Second Layer Of Loose Fibers Upon The Slurry; E Embedding Said Second Layer Of Fibers Into The Slurry; And F Repeating Steps C Through E Until The Desired Number Of Layers Of Settable Fiber-Enhanced Slurry In The Panel Is Obtained Also Provided Are An Apparatus Suitable For Producing Structural Cementitious Panels According To The Present Process, And A Structural Cementitious Panel Having Multiple Layers, Each Layer Created By Depositing A Layer Of Settable Slurry Upon A Moving Web, Depositing Fibers Upon The Slurry And Embedding The Fibers Into The Slurry Such That Each Layer Is Integrally Formed With The Adjacent Layers |
| 7,794,221 | Embedment Device For Fiber Reinforced Structural Cementitious Panel Production | 9/14/2010 | Dubey, Ashish | An Embedment Device For Use In A Cementitious Panel Production Line Such As A Structural Cementitious Panel (SCP) Production Line Wherein Hydraulic Cement Slurry Is Transported On A Moving Web On A Support Frame, And Chopped Fibers Are Deposited Upon The Slurry The Device Includes As One Embodiment, A Wire Grid Structure Mounted On A Reciprocating Shaft Driven By A Piston Which Moves The Grid Down Into The Slurry And Then Up Out Of The Slurry Transverse Of The Travel Of The Slurry Layer On The Web An Alternative Embodiment Device Includes A Grid Cell Structure With Thin Walls Extending Upward From The Grid Surface In Contact With The Slurry That Is Moved Up And Down In A Reciprocating Motion Transverse Of The Travel Of The Slurry Layer On The Web The Intermeshing Relationship Of The Grid Cell With The Fiber And Slurry Enhances Embedment Of The Fibers Into The Slurry And Also Prevents Clogging Of The Device By Fibers And Prematurely Set Slurry Particles |
| 7,797,903 | Compressed Dovetail Lance | 9/21/2010 | Lehane, Jr., James J. | A Roll Formed Sheet Metal Grid Tee, Having A Multilayer Web, Is Rigidified By A Series Of Longitudinally Spaced Tabs Lanced Through The Web The Tabs Are Cut With A Dovetail Shape And Are Foreshortened Relative To The Holes, Made When They Are Formed, By Bending Them Along A Line Parallel To A Side Of The Tab That Remains Uncut After Being Foreshortened, The Tab Is Pressed Back Into Its Associated Hole And Tight Locking Interference Is Developed Between The Divergent Dovetail Sides Of The Tab And The Hole The Tab Is Incompletely Pushed Back Into The Hole So That The Layers Of The Tab Are Misaligned With Corresponding Respective Layers Of The Web To Assure That The Tabs Prevent Relative Shear-Like Movement And/Or Spreading Of The Web Layers |
| 7,803,226 | Siloxane Polymerization In Wallboard | 9/28/2010 | Wang, Xuming ; Liu, Qingxia ; Reed, Paul ; Yu, Qiang | Polymerization Of Siloxane Is Improved Using A Gypsum-Based Slurry That Includes Stucco, Class C Fly Ash, Magnesium Oxide And An Emulsion Of Siloxane And Water This Slurry Is Used In A Method Of Making Water-Resistant Gypsum Articles That Includes Making An Emulsion Of Siloxane And Water, Then Combining The Slurry With A Dry Mixture Of Stucco, Magnesium Oxide And Class C Fly Ash The Slurry Is Then Shaped As Desired And The Stucco Is Allowed To Set And The Siloxane Polymerizesthe Resulting Product Is Useful For Making A Water-Resistant Gypsum Panel Having A Core That Includes Interwoven Matrices Of Calcium Sulfate Dihydrate Crystals And A Silicone Resin, Where The Interwoven Matrices Have Dispersed Throughout Them A Catalyst Comprising Magnesium Oxide And Components From A Class C Fly Ash |
| 7,803,296 | Methods And Systems For Preparing Gypsum Slurry Containing A Cellulose Ether | 9/28/2010 | Miller, David Paul ; Liu, Qingxia ; Yu, Qiang | A Method For Forming A Gypsum Slurry Comprises The Steps Of Combining Gypsum And Water To Form A Slurry, Combining Cellulose Ether With At Least A Second Material Configured To Delay Solubilization Of The Cellulose Ether, And Adding The Combined Cellulose Ether And At Least A Second Material To The Slurry |
| 7,811,685 | Siloxane Polymerization In Wallboard | 10/12/2010 | Wang, Xuming ; Liu, Qingxia ; Reed, Paul ; Yu, Qiang | Polymerization Of Siloxane Is Improved Using A Gypsum-Based Slurry That Includes Stucco, Class C Fly Ash, Magnesium Oxide And An Emulsion Of Siloxane And Water This Slurry Is Used In A Method Of Making Water-Resistant Gypsum Articles That Includes Making An Emulsion Of Siloxane And Water, Then Combining The Slurry With A Dry Mixture Of Stucco, Magnesium Oxide And Class C Fly Ash The Slurry Is Then Shaped As Desired And The Stucco Is Allowed To Set And The Siloxane Polymerizesthe Resulting Product Is Useful For Making A Water-Resistant Gypsum Panel Having A Core That Includes Interwoven Matrices Of Calcium Sulfate Dihydrate Crystals And A Silicone Resin, Where The Interwoven Matrices Have Dispersed Throughout Them A Catalyst Comprising Magnesium Oxide And Components From A Class C Fly Ash |
| 7,815,730 | Siloxane Polymerization In Wallboard | 10/19/2010 | Wang, Xuming ; Liu, Qingxia ; Reed, Paul ; Yu, Qiang | Polymerization Of Siloxane Is Improved Using A Gypsum-Based Slurry That Includes Stucco, Class C Fly Ash, Magnesium Oxide And An Emulsion Of Siloxane And Water This Slurry Is Used In A Method Of Making Water-Resistant Gypsum Articles That Includes Making An Emulsion Of Siloxane And Water, Then Combining The Slurry With A Dry Mixture Of Stucco, Magnesium Oxide And Class C Fly Ash The Slurry Is Then Shaped As Desired And The Stucco Is Allowed To Set And The Siloxane Polymerizesthe Resulting Product Is Useful For Making A Water-Resistant Gypsum Panel Having A Core That Includes Interwoven Matrices Of Calcium Sulfate Dihydrate Crystals And A Silicone Resin, Where The Interwoven Matrices Have Dispersed Throughout Them A Catalyst Comprising Magnesium Oxide And Components From A Class C Fly Ash |
| 7,815,889 | Method And Apparatus For Pressurized Calcination Of Gypsum | 10/19/2010 | Luan, Wenqi ; Liu, Qingxia | A Method For Calcining Gypsum In A Pressurized Reactor By Injecting Combustion Gases And Air Into The Pressurized Reactor To Create A Fluidized Bed Of Gypsum, And Heating The Fluidized Bed Of Gypsum In The Pressurized Reactor Sufficiently To Form A Calcined Hemihydrate |
| 7,819,971 | Method Of Using Landplaster As A Wallboard Filler | 10/26/2010 | Stocco, Louis P. ; Zdrojewski, Jacob A. | A Gypsum Slurry Includes Calcium Sulfate Hemihydrate, Water And Calcium Sulfate Dihydrate, Where The Calcium Sulfate Dihydrate Is Added Downstream Of The Mixer In An Optional Embodiment, The A Gypsum Slurry Includes Calcium Sulfate Hemihydrate, A Polycarboxylate Dispersant, Water And Coated Calcium Sulfate Dihydrate In This Case, The Hydrophilic, Dispersible Coating Is Selected To Serve As A Modifier To Enhance The Ability Of The Dispersant To Fluidize The Gypsum Slurry |
| 7,826,917 | Method And System For Laying Out Perforation Patterns | 11/2/2010 | Wengler, George | A Method And System For Automating The Layout Of Perforation Patterns Is Described An Embodiment Of The Invention Includes An Innovative Software Application Running On A Computer, Which Application Allows A Perforation Designer To Select Lines Or Arcs That Comprise Edges Of A Building Panel The Application Determines A Starting Hole Spacing Based On The Average Distance Through The Geometric Center Of The Panel, And A Default Perforation Pattern Is Laid Out On A Computer Aided Drawing The Application Provides The User With Detailed Information About The Perforation Layout Such As Number Of Perforations, Panel Area, And Percentage Of Open Area The Application Further Allows The User To Change Any Parameter Such As Hole Size, Hole Spacing, Hole Shape, And Edge Spacing After Any User Adjustment Of The Parameters, The Application Automatically Updates The Perforation Pattern |
| 7,832,168 | Grid Tee For Suspension Ceiling | 11/16/2010 | Lehane, Jr., James J. ; Gulbrandsen, Peder J. ; Likozar, Martin E. | In One Embodiment, A Roll-Formed Sheet Metal Tee For Grid Type Suspended Ceilings With The Face Of Its Flange Integral With The Stem And The Layers Of The Stem Fixed Together For Improved Torsional Strength An Upper Region Of The Stem Can Have One Or More Of Its Layers Folded To Increase Suspension Wire Breakout Strength A Stiffening Bulb Is Below Suspension Wire Receiving Holes So That A Loop Of The Suspension Wire Through The Tee Has A Narrow Profile And Thereby Avoids Interference With Ceiling Panels During Their Installation Or Removal Other Embodiments Of A Tee Share The Feature Of A Narrow, Suspension Wire Receiving Upper Stem Portion |
| 7,841,148 | Non-Combustible Reinforced Cementitious Lightweight Panels And Metal Frame System For Roofing | 11/30/2010 | Tonyan, Timothy D. ; Ullett, James M. ; Reicherts, James E. | A Roofing System Including Horizontal Or Sloped Metal Framing Members, For Example, C-Joists, U-Joists, Open Web Joists, Or Other Metal Frame Systems That Support A Reinforced, Lightweight, Dimensionally Stable SCP Panel The Roofing System Is Non-Combustible, Water Durable, Mold And Rot Resistant, Termite Resistant And Is Capable Of Resisting Shear Loads Equal To Or Exceeding Shear Loads Provided By Plywood Or Oriented Strand Board Panels The Panels Employ One Or More Layers Of A Continuous Phase Resulting From The Curing Of An Aqueous Mixture Of Inorganic Binder, For Example, Calcium Sulfate Alpha Hemihydrate, Hydraulic Cement, An Active Pozzolan And Lime The Continuous Phase Is Reinforced With Glass Fibers And Contains Lightweight Filler Particles, For Example, Ceramic Microspheres |
| 7,845,130 | Reinforced Cementitious Shear Panels | 12/7/2010 | Tonyan, Timothy D. ; Reicherts, James E. | This Invention Relates To A Structural Cementitious Panel (SCP) Panel Able To Resist Lateral Forces Imposed By High Wind And Earthquake Loads In Regions Where They Are Required By Building Codes These Panels May Be Used For Shear Walls, Flooring Or Roofing Or Other Locations Where Shear Panels Are Used In Residential Or Commercial Construction The Panels Employ One Or More Layers Of A Continuous Phase Resulting From The Curing Of An Aqueous Mixture Of Inorganic Binder Reinforced With Glass Fibers And Containing Lightweight Filler Particles One Or More Reinforcement Members, Such As Mesh Or Plate Sheets, Are Bonded To At Least One Surface Of The Panel To Provide A Completed Panel That Can Breathe And Has Weather Resistant Characteristics To Be Capable Of Sustaining Exposure To The Elements During Construction, Without Damage |
| 7,846,536 | Building Panels With Aesthetic Edges | 12/7/2010 | Dubey, Ashish | A Building Composite Panel Including At Least One Longitudinal Edge Is Made Of A Core Of Hydraulic Cement And A Multi-Ply Edge Facing Material Covering And Attached To At Least One Of The Longitudinal Edges The Facing Material Includes At Least A First Ply Configured For Attachment To The Core As It Sets And At Least A Second, Water-Impermeable Ply |
| 7,849,648 | Non-Combustible Reinforced Cementitious Lightweight Panels And Metal Frame System For Flooring | 12/14/2010 | Tonyan, Timothy D. ; Ullett, James M. ; Reicherts, James E. | A Flooring System Including Horizontal Metal Framing Members, For Example, C-Joists, U-Joists, Open Web Joists, HAMBRO Or Other Metal Frame Systems That Support A Reinforced, Lightweight, Dimensionally Stable SCP Panel The Flooring System Is Non-Combustible, Water Durable, Mold And Rot Resistant, Termite Resistant And Is Capable Of Resisting Shear Loads Equal To Or Exceeding Shear Loads Provided By Plywood Or Oriented Strand Board Panels The Panels Employ One Or More Layers Of A Continuous Phase Resulting From The Curing Of An Aqueous Mixture Of Inorganic Binder, For Example, Calcium Sulfate Alpha Hemihydrate, Hydraulic Cement, An Active Pozzolan And Lime The Continuous Phase Is Reinforced With Glass Fibers And Contains Lightweight Filler Particles, For Example, Ceramic Microspheres |
| 7,849,649 | Non-Combustible Reinforced Cementitious Lightweight Panels And Metal Frame System For Shear Walls | 12/14/2010 | Tonyan, Timothy D. ; Ullett, James M. ; Reicherts, James E. | A Vertical Shear Wall System Including Vertical Metal Framing Members, For Example, C-Joists, U-Joists, Open Web Joists, Or Other Metal Frame Systems That Support A Reinforced, Lightweight, Dimensionally Stable SCP Panel The Shear Wall System Is Non-Combustible, Water Durable, Mold And Rot Resistant, Termite Resistant And Is Capable Of Resisting Shear Loads Equal To Or Exceeding Shear Loads Provided By Plywood Or Oriented Strand Board Panels The Panels Employ One Or More Layers Of A Continuous Phase Resulting From The Curing Of An Aqueous Mixture Of Inorganic Binder, For Example, Calcium Sulfate Alpha Hemihydrate, Hydraulic Cement, An Active Pozzolan And Lime The Continuous Phase Is Reinforced With Glass Fibers And Contains Lightweight Filler Particles, For Example, Ceramic Microspheres |
| 7,849,650 | Non-Combustible Reinforced Cementitious Lightweight Panels And Metal Frame System For A Fire Wall And Other Fire Resistive Assemblies | 12/14/2010 | Tonyan, Timothy D. ; Ullett, James M. ; Reicherts, James E. | A Fire Resistive Assembly Including Metal Framing Members, For Example, C-Joists, U-Joists, Open Web Joists, HAMBRO Or Other Metal Frame Systems That Support A Reinforced, Lightweight, Dimensionally Stable SCP Panel The Assembly Is Non-Combustible, Water Durable, Mold And Rot Resistant, Termite Resistant And Is Capable Of Resisting Shear Loads Equal To Or Exceeding Shear Loads Provided By Plywood Or Oriented Strand Board Panels The Panels Employ One Or More Layers Of A Continuous Phase Resulting From The Curing Of An Aqueous Mixture Of Inorganic Binder, For Example, Calcium Sulfate Alpha Hemihydrate, Hydraulic Cement, An Active Pozzolan And Lime The Continuous Phase Is Reinforced With Glass Fibers And Contains Lightweight Filler Particles, For Example, Ceramic Microspheres |
| 7,849,652 | Suspended Ceiling With Measurement Indicia | 12/14/2010 | Lehane, James J. ; Leahy, Donald James | A Main Tee Member Having A Measurement Indicia System For Use With A Suspended Ceiling Includes A Support Flange And A Web Extending Upwardly From The Support Flange The Web Has First And Second Sides And A Plurality Of Receiving Channels Extending From The First Side Of The Web To The Second Side Of The Web The Receiving Channels Are Configured To Receive A Cross Tee Member A Plurality Of First Indicia Are Marked On The First Side, And A Plurality Of Second Indicia Are Marked On The Second Side, And Are Disposed At The Same Incremental Distances Along The Length Of The Main Tee Member For Indicating The Location Of A Selected Receiving Channel For Receiving A First Selected Cross Tee Member, And For Indicating The Location Of A Selected Receiving Channel For Receiving A Second Selected Cross Tee Member To Be Introduced From The Opposite Side |
| 7,851,057 | Acoustical Panel Comprising Interlocking Matrix Of Set Gypsum And Method For Making Same | 12/14/2010 | Englert, Mark H. ; Stevens, Richard B. ; Sucech, Steven W. ; Fults, Therese A. ; Porter, Michael J. ; Petersen, Bruce L. ; Dombeck, Russell A. | An Acoustical Panel Comprising A Continuous Phase Of An Interlocking Set Gypsum Matrix And A Method Of Preparing An Acoustical Panel Are Disclosed |
| 7,856,692 | Offset Taping Knife | 12/28/2010 | Rosso, Aaron Charles ; Myers, Matthew Earle ; Fong, Scott | A Taping Knife, Including A Blade Having A Proximal End And A Distal End, A Bracket Having A First Portion Arranged Generally Parallel To The Blade And Attached To The Blade Proximal End And A Second Portion Arranged Generally Perpendicular To The First Portion, And A Handle Configured For Rotation-Free Engagement With The Bracket Second Portion |
| 7,861,470 | Self Centering Shaft Wall System | 1/4/2011 | Lehane, James Joseph ; Laux, Francis Harold ; Black, Clifford | A J-Runner, Used In The Construction Of Shaft Walls In Buildings Is Provided With A Lifting Element Or Ledge Or Both To Permit Simple Centering Of Studs Or Shaft Walls Or Both By Providing A Lifting Member In A Lower J-Runner, The Studs Or Shaft Walls Or Both Can Rest Upon The Lifting Member To Assist In Vertically Centering The Studs Or Shaft Walls Or Both When The Shaft Is Fully Constructed |
| 7,861,955 | Wet-Grinding Gypsum With Polycarboxylates | 1/4/2011 | Tracy, Sharon Louise ; Mcdonald, David B. ; Liu, Qingxia | The Process Of The Present Invention Includes Obtaining A Feed Material Having An Initial Median Particle Size A Solution Of A Polycarboxylate Dispersant In Water Is Formed, Then The Feed Material Is Added To The Solution To Form A Slurry The Slurry Is Wet-Ground To Reduce The Median Particle Size Of The Feed Material Optionally, The Total Amount Of Polycarboxylate Dispersant Is Divided Into A Plurality Of Doses That Are Added Periodically Over The Total Grinding Time |
| 7,862,687 | Process For Producing A Low Density Acoustical Panel With Improved Sound Absorption | 1/4/2011 | Englert, Mark H. ; Yu, Qing | A Process Useful For Producing Low Density High Mineral Wool Based Acoustical Panels With Improved Acoustical Absorption Properties Using A Water Felting Process Is Disclosed The Process Includes Forming A Dilute Slurry Mixture Including Water, Mineral Wool, A Thermoplastic Binder And/Or Starch; And Distributing The Dilute Slurry On A Porous Carrier To Have The Slurry Dewatered To A Base Mat By Gravity Drainage To Remove Water By Gravity A Vacuum Is Adjusted To Gradually Apply Vacuum To The Gravity Dewatered Base Mat To Further Dewater The Base Mat Without Subjecting The Mat To Static Pressure That Would Compress The Base Mat The Base Mat Is Dried To Form An Acoustical Ceiling Product That Has A Low Density And Excellent Acoustical Absorption Properties |
| 7,870,698 | Non-Combustible Reinforced Cementitious Lightweight Panels And Metal Frame System For Building Foundations | 1/18/2011 | Tonyan, Timothy D. ; Ullett, James M. ; Reicherts, James E. | A Foundation System Includes Metal Framing Members That Support A Reinforced, Lightweight, Dimensionally Stable Cementitious Panel The Foundation System Is Non-Combustible, Water Durable, Mold And Rot Resistant, And Termite Resistant The Panels Employ One Or More Layers Of A Continuous Phase Resulting From The Curing Of An Aqueous Mixture Of Inorganic Binder, For Example, Calcium Sulfate Alpha Hemihydrate, Hydraulic Cement, An Active Pozzolan And Lime The Continuous Phase Is Reinforced With Glass Fibers And Contains Lightweight Filler Particles, For Example, Ceramic Microspheres |
| 7,874,116 | Wall Mold Attachment Clip | 1/25/2011 | Lalonde, Paul D. | A Clip For Attaching The End Of A Grid Tee To A Wall Angle The Clip, In Various Forms, Is Arranged To Frictionally Lock Between The Hem Of The Horizontal Leg Of The Wall Angle And The Vertical Leg The Clip, Typically, Has A Pair Of Opposed Open Hems Forming Channels In Which The Flange Of The Tee End Is Received To Join The Tee To The Clip The Clip Can Be Elongated Horizontally To Accommodate Movement Of The Grid During Seismic Activity The Clip Can Be Used To Trim The Edges Of A Ceiling Island And Can Be Made To Accommodate Angular Intersections Of The Grid With A Wall Or Island Edge |
| 7,875,114 | Foamed Slurry And Building Panel Made Therefrom | 1/25/2011 | Wittbold, James R. ; Petersen, Bruce Lynn ; Li, Alfred | A Gypsum Slurry Is Described That Includes Water, A Hydraulic Component Comprising At Least 50% Calcined Gypsum By Weight Based On The Dry Weight Of The Hydraulic Component, Foam, A Defoamer, A Polycarboxylate Dispersant Having Olefinic Unsaturated Mono-Carboxylic Acid Moieties And (Poly)Oxyalkylene Moieties, A First Portion Of A Retarder And A Second Portion Of A Retarder In Some Embodiments Of The Invention, The Defoamer Is Combined With The Dispersant Prior To Being Added To The Gypsum Slurry The Defoamer And Dispersant Can Be Added As A Physical Mixture, Wherein The Defoamer Is Attached Onto The Dispersant Polymer, Or A Combination Thereof In Some Embodiments, A Gypsum Building Panel Is Made From The Gypsum Slurry |
| 7,875,358 | Slurry And Acoustical Panel With Reduced Bound Water | 1/25/2011 | Englert, Mark H. ; Boss, Daniel E. | A Composition For A Slurry For Manufacture Of A Building Panel Includes One Or More Fillers, One Or More Binders And Water One Or More Fillers Is An Expanded Perlite At Least Partially Covered With A Film-Forming, Thermoplastic Polymer Coating Some Embodiments Use Calcined Or Uncalcined Gypsum As A Binder Or Filler One Embodiment Is A Building Panel That Includes A Solid Matrix Of Calcium Sulfate Dihydrate Crystals Bound To Expanded Perlite A Method Of Making The Panel Includes Acquiring Expanded Perlite And Coating It With Film-Forming, Thermoplastic Polymer Coating After The Expanded Perlite Is Prepared, It Is Combined With Water Other Optional Fillers And One Or More Binders To Form A Slurry The Slurry Is Shaped Into A Panel And Allowed To Dry |
| 7,886,488 | Acoustical Isolation Floor Underlayment System | 2/15/2011 | Payne, Jr., Stephen W. ; Goodfriend, Kurt J. | An Acoustic Isolation Medium Configured For Placement Between A Subfloor And A Finished Floor With A Poured Underlayment, Includes A First Layer Being A Sound Reduction Mat Disposed Upon The Subfloor, A Second Layer Placed Upon The First Layer And Being One Of A Sheet Of Fibrous Material And A Web Of Limp Mass Material With A High Internal Damping Coefficient, And A Third Layer Placed Upon The Second Layer And Being The Other Of A Sheet Of The Fibrous Material And A Web Of The Limp Mass Material |
| 7,887,230 | Mixer Having S-Shaped Paddles For Mixing Viscous Materials | 2/15/2011 | Rosso, Aaron Charles ; Myers, Matthew Earle ; Wascow, Joseph Z. ; Retzke, Brian A. ; Immordino, Jr., Salvatore C. ; Rosenstiel, Terry L. | A Mixer Is Provided That Is Configured For Attachment To A Power Tool For Mixing A Viscous Material, And Includes A Shaft Defining A Shaft Axis, And A Plurality Of Paddles Attached To The Shaft And Extending Radially From The Shaft All Of The Paddles Have Generally The Same Axial Distance To The First End Of The Shaft, And The Paddles Are Configured For Rotation About The Shaft Axis In A Direction Of Rotation Each Of The Paddles Has A General S-Shape Defined Between A Top End And A Bottom End Of The Paddle, And Between A Leading Surface And A Trailing Surface Of The Paddle |
| 7,892,472 | Method Of Making Water-Resistant Gypsum-Based Article | 2/22/2011 | Veeramasuneni, Srinivas ; Capacasa, Kathryn | A Moisture Resistant Gypsum-Based Product, Eg, A Gypsum Board, Is Made By Adding A Small Amount Of A Siloxane To The Aqueous Slurry Used To Make The Gypsum-Based Product Along With A Small Amount Of A Dead Burned Magnesium Oxide Catalyst To Enhance The Curing Of The Siloxane In The Preferred Embodiment, The Siloxane Is Formed Into An Aqueous Emulsion In Situ With No Chemical Emulsifier |
| 7,897,079 | Method And Apparatus For Scrim Embedment Into Wet Processed Panels | 3/1/2011 | Miller, David Paul | A Method Of Producing A Paperless Gypsum/Fiber Board From A Mixture Including Reinforcing Material Particles, Calcined Gypsum And Water A Headbox Feeds The Mixture Into A Panel Forming Area (Forming Pond) Over The Upper Surface Of A Continuous Forming Fabric To Form A Panel Mat Also, A Reinforcing Mesh Is Fed Over A Transverse Member, Located Over A Portion Of The Forming Fabric, And Into The Forming Pond To Embed The Mesh In The Mixture At Least A Portion Of A Downstream End Of The Transverse Member Is Under A Downstream Portion Of The Headbox Or Downstream Of The Headbox Then The Panel Mat Is Pressed, The Calcined Gypsum Of The Pressed Panel Mat Is Rehydrated, And The Resulting Board Is Dried |
| 7,908,810 | Corrugated Steel Deck System Including Acoustic Features | 3/22/2011 | Payne, Jr., Stephen W. ; Goodfriend, Kurt ; Mcdonald, David Bruce ; Socha, Dennis A. ; Ellicson, John ; Laux, Francis H. ; Dombeck, Russell A. ; Sheppard, Thomas F. | The Present Invention Relates To A Sound Rated Floor System For Inhibiting Sound Transmission Between Floors The System Includes A Corrugated Steel Deck; A First Layer Of Cementitious Material Or Board Or Sheet Applied Over The Corrugated Steel Deck; A Sound Insulation Mat Or Board Applied Over The First Layer; A Second Layer Of Cementitious Material Applied Over The Sound Insulation Mat Or Board The Floor System Has An IIC Rating Of At Least 25 And The Corrugated Steel Deck Provides At Least 50 Percent Of The Ultimate Load Carrying Capacity Under Static And Impact Loading Of The Floor System With A Floor Deflection Of At Most 1/360 Of The Floor Span |
| 7,908,813 | Ceiling Panel | 3/22/2011 | Gulbrandsen, Peder J. ; Wendt, Alan C. | A Ceiling Panel Is Provided For Use In A Grid-Type Suspended Ceiling, Wherein The Grid Includes A Plurality Of Spaced Grid Runners The Ceiling Panel Comprises A Tile Base With Perimeter Segments And Perimeter Profiles Along At Least A Portion Of At Least Two Of The Perimeter Segments Each Profile Is Supportable By The Grid Runners During Suspension A Facing Material Is Secured Across The Perimeter Segments, And Extends Beyond The Perimeter Profiles In Order To At Least Partially Conceal Two Of The Grid Runners When The Tile Is Suspended From The Two Grid Runners And Viewed From Below |
| 7,918,950 | Low Fiber Calcination Process For Making Gypsum Fiberboard | 4/5/2011 | Skinner, Marsha S. ; Lange, Robert G. ; Blackburn, Douglas | An Energy Efficient Method For Making A Gypsum Cellulose Fiberboard Comprising Adding A First Portion Of Cellulose Fiber To Gypsum Before The Gypsum And Cellulose Fiber Are Co-Calcined In A Reactor, Adding A Second Portion Of Cellulose Fiber To The Slurry After It Leaves The Reactor To Form A Second Slurry, Depositing The Slurry To Form A Mat, Dewatering The Mat, Rehydrating The Mat And Then Finishing The Mat To Form A Final Gypsum Cellulose Fiberboard A Reduction Of Up To About 40% To 50% Of Steam Energy Used Can Be Achieved When The Second Portion Of Added Cellulose Fiber Is 50% Or More Of The Total Cellulose Fiber Used In The Final Board Compared To Gypsum Cellulose Board Made With The Same Ingredients But When All Of The Fiber Is Added To The Gypsum Prior To The Reactor |
| 7,930,864 | Mounting Clip | 4/26/2011 | Wendt, Alan C. | An L-Shaped Clip For Mounting A Trim Member Along An Exposed Edge Of A Suspension Ceiling Includes A Support Leg To Be Longitudinally Secured To A Grid Tee And A Perpendicular Face Leg To Be Secured To The Trim Member The Support Leg Includes Offset Clip Walls For Engagement With Offset Tee Walls And Clip Abutment Surfaces For Engagement With Tee Abutment Surfaces The Offset Walls And Abutment Surfaces Cooperate To Assist In The Alignment And Mounting Of The Clip To The Grid Tee At Different Relative Heights A Single Clip May Be Mounted To Either A T-Shaped Grid Tee Or An Open Channel Grid Tee |
| 7,932,308 | Modifiers For Gypsum Slurries And Method Of Using Them | 4/26/2011 | Lettkeman, Dennis M. ; Shake, Michael P. ; Liu, Qingxia ; Wilson, John W. ; Randall, Brian ; Blackburn, David R. | An Improved Gypsum Slurry That Includes Water, Calcium Sulfate Hemihydrate, A Polycarboxylate Dispersant And A Modifier The Modifier Is Chemically Configured To Improve The Efficacy Of The Polycarboxylate Dispersant Preferred Modifiers Include Cement, Lime, Slaked Lime, Soda Ash, Carbonates, Silicates And Phosphates |
| 7,935,223 | Panels Including Renewable Components And Methods For Manufacturing | 5/3/2011 | Cao, Bangji ; Lau, Te Hua ; Malone, Curt ; Song, W. David ; Brown, Martin W. | A Panel Includes About 01% To About 95% By Weight Of A Renewable Component The Panel Has At Least One Of A CAC Value Of At Least About 25, An NRC Value Of At Least About 025 And An STC Of At Least About 25 A Method For Manufacturing Such Panels Is Also Provided |
| 7,946,089 | Single Web Grid With Reinforced Bulb | 5/24/2011 | Lalonde, Paul D. | Manufacture Of Roll Formed One Piece Sheet Metal Grid Tees That Affords Different Load Ratings With The Same Gauge And Quality Of Sheet Stock And The Same Overall Cross-Section Dimensions By Varying The Width Of The Strip Used To Make The Tees And Disposing Material Added For Increased Load Rating At The Area Of The Hollow Reinforcing Bulb Of The Tees |
| 7,964,034 | Gypsum-Containing Product And Method For Producing Same | 6/21/2011 | Yu, Qiang ; Sucech, Steven W. ; Groza, Brent E. ; Mlinac, Raymond J. ; Jones, Frederick T. ; Henkels, Paul J. | The Invention Provides A Set Gypsum-Containing Product Having Increased Resistance To Permanent Deformation And A Method For Preparing It Comprising Forming A Mixture Of A Calcium Sulfate Material, Water, And An Appropriate Amount Of One Or More Enhancing Materials Chosen From Condensed Phosphoric Acids, Each Of Which Comprises 2 Or More Phosphoric Acid Units; And Salts Or Ions Of Condensed Phosphates, Each Of Which Comprises 2 Or More Phosphate Units The Mixture Is Then Maintained Under Conditions Sufficient For The Calcium Sulfate Material To Form A Set Gypsum Material |
| 7,988,012 | Joint Compound Container | 8/2/2011 | Bruno, Robert ; Myers, Matthew Earle | A Joint Compound Container Has Two Opposing End Walls, And A Body Having A Generally Trough Shape Formed From Two Planar Side Walls Separated From One Another By A Planar Floor The Body Is Affixed To The End Walls Each Of The Side Walls Shares A Respective Common Radiused Edge With The Floor Of The Container |
| 8,016,960 | Methods Of And Systems For Adding A High Viscosity Gypsum Additive To A Post-Mixer Aqueous Dispersion Of Calcined Gypsum | 9/13/2011 | Wittbold, James R. ; Song, W. David | Provided Are Methods And Systems For Introducing A Wet Gypsum Accelerator Or Other High Viscosity Production Additive To An Aqueous Dispersion Of Calcined Gypsum In A Discharge Apparatus Downstream Of A Stucco Mixer In Which The Dispersion Was Prepared These Methods And Systems Are Useful In The Production Of Various Gypsum Products Such As Board Including Wallboard And Ceiling Tiles |
| 8,025,177 | Joint Compound Container | 9/27/2011 | Bruno, Robert ; Myers, Matthew Earle | A Joint Compound Container Including A Body Having A Generally Trough Shape Formed From Two Opposing Planar Side Walls Separated From One Another By A Planar Floor, And Opposing End Walls The Container Also Includes A Reinforcing Band Attached To The Body And Configured For Reinforcing Each Of The Side Walls And The End Walls Where The Reinforcing Band Is Displaced From An Upper Edge Of The Body Only By A Distance Sufficient To Define A Scraping Edge Extending Upwardly Beyond An Upper Edge Of The Reinforcing Band And Where The Scraping Edge Is Formed By The Upper Edge Of The Body And Supported By The Band |
| 8,028,803 | Molding A Lightweight Cast Acoustical Product | 10/4/2011 | Englert, Mark | A Lightweight Cast Article That Is Made By The Method Of The Present Invention A Foamed Acoustical Product Is Prepared By Blending A Starch With Cold Water, Then Heating The Starch/Water Blend To Form A Starch Gel Mineral Wool Is Added To The Starch Gel To Form A Pulp And The Pulp Is Wet-Mixed Until Wool Nodules Are Formed The Pulp Is Then Combined With A Surfactant And An Amount Of Foam Water The Foaming Agent Is Selected From The Group Consisting Of A Linear Sodium Dodecylbenzene Sulfonate, A Cocamidopropyl Betaine, A Cocamidopropyl Hydroxysultaine, Their Salts And Mixtures Thereof Mixing Of The Foaming Agent And Pulp Continues To Form A Foamed Pulp The Foamed Pulp Is Cast Into A Mold And Allowing The Foamed Pulp To Dry Forming A Foamed Product The Foamed Product Is Removed From The Mold |
| 8,030,377 | Self-Leveling Cementitious Composition With Controlled Rate Of Strength Development And Ultra-High Compressive Strength Upon Hardening And Articles Made From Same | 10/4/2011 | Dubey, Ashish ;Chan, Cesar ; Natesaiyer, Kumar ; Durst, Bartley P. ; Kinnebrew, Pamela G. ; Cummins, Toney K. ; Boone, Nicholas ; Heard, William F. ; Roth, Michael J. ; Slawson, Thomas | A Self-Leveling Cementitious Mixture With Excellent Flow Properties And Which Hardens With A Controlled Rate Of Strength Development To An Ultra-High Compressive Strength Composite Composition For Use In Making Articles Such As Cementitious Armor Panel With Ballistic And Blast Resistant Properties Including: A Continuous Phase Resulting From The Curing Of An Aqueous Mixture, In The Absence Of Silica Flour, Of Inorganic Cement Binder, Inorganic Mineral Filler Having A Particle Size Of About 150-450 Microns, Pozzolanic Mineral Filler, Polycarboxylate Based Self-Leveling Agent And Water The Cementitious Mixture May Include Alkanolamine, Such As Triethanolamine, And Acid Or Acid Salt, Such As Tartaric Acid The Cementitious Composition May Be Reinforced With Reinforcing Fibers, Eg Glass Fibers, In An Amount Of About 05-60% By Volume Of The Overall Cementitious Composition The Fibers Are Uniformly Dispersed In The Cementitious Composition Before It Is Cured To Form A Final Cementitious Armor Panel |
| 8,033,069 | Embedded Clip Attachment For Cast Architectural Element | 10/11/2011 | Hotchkiss, Iii, Wesley E. | A Cast Architectural Element Is Provided, Including A Stone Shell Having Front, End, Side And Rear Walls Defining An Internal Cavity, The Rear Walls Defining A Rear Opening A Core Is Disposed In The Internal Cavity, And At Least One Attachment Clip Is Provided Having A First Portion Extending From The Shell, And A Second Portion Engaged In The Core A Layer Of Mesh Is Disposed Upon The Core And The Second Clip Portion, And A Settable Filler Layer Is Disposed Upon The Mesh In The Rear Opening, Such That Upon Setting, The Filler Retains The Clip In Position |
| 8,034,203 | Gypsum Wallboard With Improved Nail Pull Strength And The Method For Making Same | 10/11/2011 | Xu, Yufeng ; Weinberger, Renee J. | Repulped Fiber That Has Been Treated With An Aqueous Solution Of A Caustic Selected From Sodium Hydroxide, Potassium Hydroxide And Sodium Carbonate, Is Used To Make Wallboard Paper That Is Used To Make A Gypsum Wallboard Having Improved Nail Pulling Strength Compared To Gypsum Wallboard Made With Fiber Wallboard Paper That Has Not Been Treated With Caustic |
| 8,038,790 | High Performance Non-Combustible Gypsum-Cement Compositions With Enhanced Water Durability And Thermal Stability For Reinforced Cementitious Lightweight Structural Cement Panels | 10/18/2011 | Dubey, Ashish ; Chan, Cesar | Structural Cement Panel For Resisting Transverse And Shear Loads Equal To Transverse And Shear Loads Provided By Plywood And Oriented Strain Board, When Fastened To Framing For Use In Shear Walls, Flooring And Roofing Systems The Panels Provide Reduced Thermal Transmission Compared To Other Structural Cement Panels The Panels Employ One Or More Layers Of A Continuous Phase Resulting From Curing An Aqueous Mixture Of Calcium Sulfate Alpha Hemihydrate, Hydraulic Cement, Coated Expanded Perlite Particles Filler, Optional Additional Fillers, Active Pozzolan And Lime The Coated Perlite Has A Particle Size Of 1-500 Microns, A Median Diameter Of 20-150 Microns, And An Effective Particle Density (Specific Gravity) Of Less Than 050 G/Cc The Panels Are Reinforced With Fibers, For Example Alkali-Resistant Glass Fibers The Preferred Panel Contains No Intentionally Added Entrained Air A Method Of Improving Fire Resistance In A Building Is Also Disclosed |
| 8,038,915 | Panel Smoothing Process And Apparatus For Forming A Smooth Continuous Surface On Fiber-Reinforced Structural Cement Panels | 10/18/2011 | Stivender, Eugene Scott | A Vibrating Flexible Smoothing Sheet Or Shroud Disposed Transversely Of A Direction Of Travel Of A Formed Fiber Panel Including Gypsum-Cementitious Slurry And Embedded Chopped Fibers The Sheet Is Used To Smooth The Surface Of The Panel As It Exits A Fiber Embedment Station Of A Structural Cementitious Panel Production Line To Remove Grooves And Other Non-Uniform Surface Imperfections To Reduce The Need For Costly Finishing After The Panels Are Cured And Cut To Size The Flexible Sheet Is Designed To Float Over The Surface Of The Formed Panel Without Tearing Or Otherwise Damaging The Surface Of The Heavily Fiber Reinforced Surface Layers Of The Panel The Vibrating Sheet Is Pivotally Mounted On The Side Dams Of The Web Production Line So It Can Float Over The Panel Surface During Use, But Be Raised Off The Line When Not In Use |
| 8,039,774 | Electrical Heater With A Resistive Neutral Plane | 10/18/2011 | Dubey, Ashish | A Heating System In The Form Of A Multi-Layer, Yet Relatively Thin And Flexible Panel The Panel Contains A Number Of Layers Including First, Second And Third Electrically Insulating Layers A First Electrically Conductive Resistive Layer (Heater Layer) Is Sandwiched Between The First And Second Insulating Layers A Second Electrically Conductive Resistive Layer (Resistive Neutral Plane Layer) Is Sandwiched Between The Second And Third Insulating Layers The Heater Layer Has A Neutral Electrical Connection And A Live Electrical Connection The Neutral And Live Electrical Connections Are Electrically Connected To Each Other At The Panel Only By Electrically Resistive Material Of The Heater Layer Extending Between The Neutral And Live Electrical Connections The Resistive Neutral Plane Layer Has A Neutral Electrical Connection Electrically Connected With The Neutral Connection Of The Heater Layer The Resistive Neutral Plane Layer Is Electrically Isolated From The Live Connection Of The Heater Layer By The Second Insulating Layer |
| 8,042,317 | Double Auger System And Method For Filling Bags With Slurry | 10/25/2011 | Doyle, Stanley B. | A Slurry Product Is Packaged Into A Plastic Bag Using A Modified Form-Fill-Seal Apparatus And Method Of Using It The Apparatus Has Preferably Been Modified To Select The Appropriate Amount Of Product Slurry By Weight Bags Are Filled Using A Dual Auger System That Includes A Bulk Auger And A Precision Auger That Fill A Bag Simultaneously The Augers Work Together For A First Period To Rapidly Load Slurry Into A Large Part Of The Bag During A Second Period, The Bulk Auger Shuts Down, Allowing The Precision Auger Alone To Top-Off The Bags The Periods Are Determined Either By Time Or By The Volume Or Weight Of The Product That Has Entered The Bag |
| 8,042,591 | Paper Beading Apparatus For Wallboard Corner Beads | 10/25/2011 | Rosso, Aaron Charles ;Myers, Matthew Earle ; Patel, Amar Arvind ; Wascow, Joseph Z. ; Oshgan, Stephen M. ; Retzke, Brian A. ; Fong, Scott | A Paper Beading Apparatus, Includes A Hopper Having A Body Defining A Chamber For Holding A Quantity Of Joint Compound, And Having An Open Upper End, An Upper Rim, And A Lower End; A Lid Pivotally Secured To The Body For Movement Between An Open Position And A Closed Position, Wherein In The Closed Position, The Lid Engages The Open Upper Rim, The Lid Having A Releasably Sealable Air Port; And A Base Configured For And Accommodating The Hopper Lower End, For Receiving Joint Compound, And For Applying The Joint Compound To A Corner Paper Bead |
| 8,051,618 | Panel Attachment Clip | 11/8/2011 | Ahren, Gregory M. ; Bankston, John D. ; Fletterick, James A. | A Clip For Suspending Ceiling Panels From A Horizontal Channel Having A C-Shape Formed By A Vertical Web And Integral Opposed Horizontal Upper And Lower Flanges, The Clip Comprising A Sheet Metal Body, The Body Including A Vertical Web Extending Between Upper And Lower Portions, The Upper Portion Being Configured To Overlie The Horizontal Upper Flange Of The Channel When Installed Thereon, The Lower Portion Being Configured To Lie Below The Horizontal Lower Flange Of The Channel, The Lower Portion Including A Generally Upstanding Hook Section Adapted To Be Received In A Downwardly Open Channel On The Ceiling Panel Beneath The C-Shaped Channel To Enable The Clip To Support The Panel By Transferring The Weight Of The Panel To The C-Shaped Channel, The Hook Section Being Fixed Against Horizontal Movement Relative To The Body Vertical Web |
| 8,056,294 | Concealed Suspension Ceiling With Downward Removable Panels | 11/15/2011 | Lalonde, Paul D. | A Suspended Ceiling System Comprising Metal Grid Members And Rectangular Composite Acoustical Panels, The Panels Having Edges At Their Peripheries, The Grid Members Having A Cross Section Generally Like An Inverted T Such That They Provide Oppositely Extending Flanges Adapted To Support The Panels At Their Edges, A Resilient Element At A Juncture Between A Support On The Grid Member Flanges And At Least One Edge Of Each Panel, The Resilient Element Being Arranged To Temporarily Deflect To Permit A Panel To Be Raised From Below The Grid Member Into An Installed Position And To Extend Itself To Hold Such Panel In Position On The Grid |
| 8,057,915 | Acoustical Gypsum Board Panel And Method Of Making It | 11/15/2011 | Song, W. David ; Englert, Mark H. ; Yu, Qiang ; Brown, Martin W. ; Stevens, Richard B. | The Acoustical Product Of The Present Invention Comprises An Acoustical Product Including A Matrix Of Calcium Sulfate Dihydrate Crystals And Expanded Perlite Distributed Throughout The Matrix The Expanded Perlite Has A Particle Size Distribution With At Least 10% Of The Perlite Having A Particle Diameter Of 700 Microns Or More, And The Amount Of Expanded Perlite To Calcium Sulfate Dihydrate Is About 35% To About 75% By Weight, Based Upon The Dry Weight Of The Calcium Sulfate Dihydrate A Dispersing Agent And Glass Fibers Having A Particle Length Of About _ Inch To About 1 Inch Are Dispersed Throughout The Gypsum Matrix |
| 8,061,108 | Non-Combustible Reinforced Cementitious Lightweight Panels And Metal Frame System For Building Foundations | 11/22/2011 | Tonyan, Timothy D. ; Ullett, James M. ; Reicherts, James E. | A Foundation System Includes Metal Framing Members That Support A Reinforced, Lightweight, Dimensionally Stable Cementitious Panel The Foundation System Is Non-Combustible, Water Durable, Mold And Rot Resistant, And Termite Resistant The Panels Employ One Or More Layers Of A Continuous Phase Resulting From The Curing Of An Aqueous Mixture Of Inorganic Binder, For Example, Calcium Sulfate Alpha Hemihydrate, Hydraulic Cement, An Active Pozzolan And Lime The Continuous Phase Is Reinforced With Glass Fibers And Contains Lightweight Filler Particles, For Example, Ceramic Microspheres |
| 8,061,257 | Cement Based Armor Panel System | 11/22/2011 | Tonyan, Timothy D. ; Frank, William A. ; Dubey, Ashish ; Natesaiyer, Kumar ; Durst, Bartley P. ; Kinnebrew, Pamela G. ; Cummins, Toney K. ; Boone, Nicholas ; Heard, William F. ; Roth, Michael J. ; Slawson, Thomas ; Davis, James L. ; Stinson, Ryan ; Johnson, Carol F. | A Cementitious Armor Panel Assembly Including Cementitious Armor Panel With Ballistic And Blast Resistant Properties Attached To A Frame Structure To Produce A Protective Structure The Cementitious Armor Panels Have A Continuous Phase Resulting From The Curing Of An Aqueous Mixture Of An Inorganic Cement Binder, An Inorganic Mineral Filler Having A Particle Size Of About 150-450 Microns, A Pozzolanic Mineral Filler, A Polycarboxylate Based Superplasticizer Self-Leveling Agent, And Water The Mixture May Also Contain Alkanolamine, And Acid Or Acid Salt Prior To Curing, The Continuous Phase Is Reinforced With Fiber Uniformly Distributed In The Continuous Phase Before It Is Cured To Form The Panel The Panel May Be Reinforced With A Skin Attached To At Least One Surface Of The Panel |
| 8,062,565 | Low Density Non-Woven Material Useful With Acoustic Ceiling Tile Products | 11/22/2011 | Mueller, Donald S. ; Cao, Bangji ; Song, Weixin D. ; Yu, Qing | A Non-Woven Material, That Can Be Formed Into An Acoustic Ceiling Tile, Is Provided The Material Includes A Substantially Planar And Self-Supporting Core Of An Inorganic Base Fiber And A Synthetic Thermal Bonding Fiber The Synthetic Thermal Bonding Fiber Preferably Has An Increased Bonding Surface Area That Improves Adhesion And Porosity To Provide A Base Mat Or Core With A Low Density To Provide Sound Absorption Required By An Acoustic Ceiling Tile |
| 8,062,741 | Cement Based Laminated Armor Panels | 11/22/2011 | Tonyan, Timothy D. ; Frank, William A. ; Dubey, Ashish ; Chan, Cesar ; Durst, Bartley P. ; Kinnebrew, Pamela G. ; Cummins, Toney K. ; Boone, Nicholas ; Heard, William F. ; Roth, Michael J. ; Davis, James L. | A Cementitious Panel With Ballistic And Blast Resistant Properties Having A Core Layer Of Ultra-High Compressive Strength Composite And At Least One Skin Layer The Panels Can Also Be Used In Walls, Ceiling And Flooring Panels Which Require High Compressive Strength For Resistance To Earthquakes And Surfaces Resistant To Surface Abuse Such As In Prison And Other Institutions The Panel Core Layer Has A Continuous Cementitious Phase Resulting From The Curing Of An Aqueous Mixture, In The Absence Of Silica Flour, Of Inorganic Cement Binder, Inorganic Mineral Filler Having A Particle Size Of About 150-450 Microns, A Pozzolanic Mineral Filler, Polycarboxylate Based Superplasticizer, Alkanolamine And Acid Or Alkali Metal Acid Salt; And Water The Mixture May Be Uniformly Reinforced With Fiber Added Before Curing The Cementitious Core Layer Is Then Reinforced With The Skin, Such As Fiber Reinforced Polymer, Attached To At Least One Panel Surface |
| 8,065,852 | Non-Combustible Reinforced Cementitious Lightweight Panels And Metal Frame System For Roofing | 11/29/2011 | Tonyan, Timothy D. ; Ullett, James M. ; Reicherts, James E. | A Roofing System Including Horizontal Or Sloped Metal Framing Members, For Example, C-Joists, U-Joists, Open Web Joists, Or Other Metal Frame Systems That Support A Reinforced, Lightweight, Dimensionally Stable SCP Panel The Roofing System Is Non-Combustible, Water Durable, Mold And Rot Resistant, Termite Resistant And Is Capable Of Resisting Shear Loads Equal To Or Exceeding Shear Loads Provided By Plywood Or Oriented Strand Board Panels The Panels Employ One Or More Layers Of A Continuous Phase Resulting From The Curing Of An Aqueous Mixture Of Inorganic Binder, For Example, Calcium Sulfate Alpha Hemihydrate, Hydraulic Cement, An Active Pozzolan And Lime The Continuous Phase Is Reinforced With Glass Fibers And Contains Lightweight Filler Particles, For Example, Ceramic Microspheres |
| 8,065,853 | Reinforced Cementitious Shear Panels | 11/29/2011 | Tonyan, Timothy D. ; Reicherts, James E. | This Invention Relates To A Structural Cementitious Panel (SCP) Panel Able To Resist Lateral Forces Imposed By High Wind And Earthquake Loads In Regions Where They Are Required By Building Codes These Panels May Be Used For Shear Walls, Flooring Or Roofing Or Other Locations Where Shear Panels Are Used In Residential Or Commercial Construction The Panels Employ One Or More Layers Of A Continuous Phase Resulting From The Curing Of An Aqueous Mixture Of Inorganic Binder Reinforced With Glass Fibers And Containing Lightweight Filler Particles One Or More Reinforcement Members, Such As Mesh Or Plate Sheets, Are Bonded To At Least One Surface Of The Panel To Provide A Completed Panel That Can Breathe And Has Weather Resistant Characteristics To Be Capable Of Sustaining Exposure To The Elements During Construction, Without Damage |
| 8,069,633 | Non-Combustible Reinforced Cementitious Lightweight Panels And Metal Frame System For Flooring | 12/6/2011 | Tonyan, Timothy D. ; Ullett, James M. ; Reicherts, James E. | A Flooring System Including Horizontal Metal Framing Members, For Example, C-Joists, U-Joists, Open Web Joists, HAMBRO Or Other Metal Frame Systems That Support A Reinforced, Lightweight, Dimensionally Stable SCP Panel The Flooring System Is Non-Combustible, Water Durable, Mold And Rot Resistant, Termite Resistant And Is Capable Of Resisting Shear Loads Equal To Or Exceeding Shear Loads Provided By Plywood Or Oriented Strand Board Panels The Panels Employ One Or More Layers Of A Continuous Phase Resulting From The Curing Of An Aqueous Mixture Of Inorganic Binder, For Example, Calcium Sulfate Alpha Hemihydrate, Hydraulic Cement, An Active Pozzolan And Lime The Continuous Phase Is Reinforced With Glass Fibers And Contains Lightweight Filler Particles, For Example, Ceramic Microspheres |
| 8,070,878 | Lightweight Cementitious Compositions And Building Products And Methods For Making Same | 12/6/2011 | Dubey, Ashish | Cementitious Compositions And Methods For Making Same, In Which The Cementitious Compositions Include 35-60 Wt % Cementitious Reactive Powder (Also Termed Portland Cement-Based Binder), 2-10 Wt % Expanded And Chemically Coated Perlite Filler, 20-40 Wt % Water, Entrained Air, And Optional Additives Such As Water Reducing Agents, Chemical Set-Accelerators, And Chemical Set-Retarders In Addition, The Lightweight Cementitious Compositions May Contain 0-25 Wt % On A Wet Basis Secondary Fillers Such As Expanded Clay, Shale Aggregate, And Pumice |
| 8,070,895 | Water Resistant Cementitious Article And Method For Preparing Same | 12/6/2011 | Engbrecht, Dick C. ; Liu, Qingxia ; Shake, Michael P. ; Wang, Xuming ; Miller, David Paul ; Bolind, Michael L. ; Reed, Paul ; Roelfs, Donald L. ; Bury, Rafael | A Fibrous Mat-Faced Cementitious Article Comprising (A) A Cementitious Core, And (B) A First Fibrous Mat Comprising Polymer Or Mineral Fibers And A Hydrophobic Finish On At Least One Surface Thereof, Wherein The Hydrophobic Finish Is In Contact With The Cementitious Core, And A Method Of Preparing A Fibrous Mat-Faced Cementitious Article, As Well As A Method Of Preparing A Water-Resistant Cementitious Article Comprising (A) Preparing An Aqueous Siloxane Dispersion, Wherein The Dispersion Comprises About 4 Wt % To About 8 Wt % Siloxane, (B) Combining The Siloxane Dispersion With A Cementitious Mixture To Provide A Cementitious Slurry, (C) Depositing The Cementitious Slurry Onto A Substrate, And (D) Allowing The Cementitious Slurry To Harden, Thereby Providing A Cementitious Article |
| 8,079,198 | Non-Combustible Reinforced Cementitious Lightweight Panels And Metal Frame System For Shear Walls | 12/20/2011 | Tonyan, Timothy D. ; Ullett, James M. ; Reicherts, James E. | A Vertical Shear Wall System Including Vertical Metal Framing Members, For Example, C-Joists, U-Joists, Open Web Joists, Or Other Metal Frame Systems That Support A Reinforced, Lightweight, Dimensionally Stable SCP Panel The Shear Wall System Is Non-Combustible, Water Durable, Mold And Rot Resistant, Termite Resistant And Is Capable Of Resisting Shear Loads Equal To Or Exceeding Shear Loads Provided By Plywood Or Oriented Strand Board Panels The Panels Employ One Or More Layers Of A Continuous Phase Resulting From The Curing Of An Aqueous Mixture Of Inorganic Binder, For Example, Calcium Sulfate Alpha Hemihydrate, Hydraulic Cement, An Active Pozzolan And Lime The Continuous Phase Is Reinforced With Glass Fibers And Contains Lightweight Filler Particles, For Example, Ceramic Microspheres |
| 8,080,133 | Panels Including Renewable Components And Methods For Manufacturing | 12/20/2011 | Cao, Bangii ; Lau, Te Hua ; Malone, Curt ; Song, W. David ; Brown, Martin W. | A Panel Includes About 01% To About 95% By Weight Of A Renewable Component The Panel Has At Least One Of A CAC Value Of At Least About 25, An NRC Value Of At Least About 025 And An STC Of At Least About 25 A Method For Manufacturing Such Panels Is Also Provided |
| 8,088,218 | Foamed Slurry And Building Panel Made Therefrom | 1/3/2012 | Blackburn, David R. ; Lu, Runhai ; Tracy, Sharon L. ; Liu, Qingxia ; Wittbold, James R. ; Petersen, Bruce Lynn ; Li, Alfred ; Fall, John L. ; Shake, Michael P. ; Lee, Chris | A Gypsum Slurry Is Described That Includes Water, A Hydraulic Component Comprising At Least 50% Calcined Gypsum By Weight Based On The Dry Weight Of The Hydraulic Component, Foam, A Defoamer And A Polycarboxylate Dispersant In Some Embodiments Of The Invention, The Defoamer Is Combined With The Dispersant Prior To Being Added To The Gypsum Slurry The Defoamer And Dispersant Can Be Added As A Physical Mixture, Wherein The Defoamer Is Attached Onto The Dispersant Polymer, Or A Combination Thereof In Some Embodiments, A Gypsum Building Panel Is Made From The Gypsum Slurry |
| 8,100,226 | Porous Nonwoven Scrims In Acoustical Panels | 1/24/2012 | Cao, Bangji ; Palm, Gregory ; Song, Weixin D. | An Acoustical Building Panel And Method Of Manufacturing It Are Disclosed Embodiments Of The Panel Include A Porous Nonwoven Scrim, A Coating Deposited On The Scrim, A Base Mat, And An Adhesive Deposited On Either The Base Mat Or The Scrim In A Discrete Form Such As In Droplets Embodiments Of The Method Of Manufacture Include Steps Of Perforating The Base Mat, Applying The Adhesive To The Base Mat In The Discrete Form, Laminating The Scrim Onto The Base Mat, And Applying The Coating To The Scrim Surface |
| 8,109,313 | Corner Bead Roller Tool | 2/7/2012 | Rosso, Aaron Charles ; Myers, Matthew Earle ; Patel, Amar Arvind ; Fong, Scott ; Wascow, Joseph Z. ; Williams, Daniel J. ; Retzke, Brian A. | A Wallboard Finishing Roller Having An Elongated Bracket With Two Ends Is Provided Two Roller Assemblies Are Attached To The Bracket Such That The First Roller Assembly Includes A Center Axis That Is Perpendicular To A Center Axis Of The Second Roller Assembly Each Roller Assembly Includes A Wheel, A Bushing And A Shaft Such That The Wheel Is Rotatable Around The Axis Of The Shaft The Roller Assembly Is Affixed To The Bracket By A Bracket Nut, Which Is Held In Place By A Bumper |
| 8,118,928 | Cast Ceiling Tile | 2/21/2012 | Yu, Qing Claire ; Cao, Bangji ; Palm, Gregory O. | A Cast Type Ceiling Tile Comprising A Mixture Containing 30 To 70% Mineral Wool, 10 To 40% Expanded Glass Beads, 8 To 20% Starch, 0 To 15% Stucco, And 0 To 1% Boric Acid |
| 8,122,679 | Non-Combustible Reinforced Cementitious Lightweight Panels And Metal Frame System For A Fire Wall And Other Fire Resistive Assemblies | 2/28/2012 | Tonyan, Timothy D. ; Ullett, James M. ; Reicherts, James E. | A Fire Resistive Assembly Including Metal Framing Members, For Example, C-Joists, U-Joists, Open Web Joists, HAMBRO Or Other Metal Frame Systems That Support A Reinforced, Lightweight, Dimensionally Stable SCP Panel The Assembly Is Non-Combustible, Water Durable, Mold And Rot Resistant, Termite Resistant And Is Capable Of Resisting Shear Loads Equal To Or Exceeding Shear Loads Provided By Plywood Or Oriented Strand Board Panels The Panels Employ One Or More Layers Of A Continuous Phase Resulting From The Curing Of An Aqueous Mixture Of Inorganic Binder, For Example, Calcium Sulfate Alpha Hemihydrate, Hydraulic Cement, An Active Pozzolan And Lime The Continuous Phase Is Reinforced With Glass Fibers And Contains Lightweight Filler Particles, For Example, Ceramic Microspheres |
| 8,133,354 | Acoustic Ceiling Tiles Made With Paper Processing Waste | 3/13/2012 | Baig, Mirza A. | A Composition And Process Suitable For Making Acoustic Tiles Are Disclosed Certain Embodiments Of The Composition Comprise: Perlite; Inorganic Material Selected From The Group Consisting Of Calcium Sulfate, Calcium Carbonate, Clay And Mixtures Thereof; A Binder Selected From The Group Consisting Of Starch, A Combination Of Starch And Cellulosic Fibers, Latex, Kraft Paper Gel And Mixtures Thereof; Optionally Mineral Wool; Optionally Gypsum; And Cellulosic Fiber, Wherein At Least A Portion Of The Cellulosic Fiber And At Least A Portion Of The Inorganic Material Are Pulp And Paper Processing Waste Comprising Cellulosic Fiber, Clay And Calcium Carbonate Certain Embodiments Of The Process Comprise: Forming An Aqueous Slurry; Continuously Flowing Slurry Onto A Moving Foraminous Wire To Form A Cake; Dewatering The Cake To Form A Base Mat; And Drying The Base Mat |
| 8,133,357 | Panels Including Renewable Components And Methods For Manufacturing Same | 3/13/2012 | Cao, Bangji ; Lau, Te Hua ; Song, W. David ; Brown, Martin W. | A Panel Includes About 01% To About 95% By Weight Of A Ground Renewable Component In An Embodiment, The Panel Has At Least One Core Comprising: From About 01% To About 95% By Weight Of The Ground Renewable Component; From About 01% To About 95% By Weight Of One Or More Fibers; And From About 1% To About 30% By Weight Of One Or More Binders, All Based On Dry Panel Weight In An Embodiment, The Ground Renewable Component Has A Particle Size Distribution Whereby Less Than 5% Of The Particles Are Retained By A Mesh Screen With Openings Of About 0312 Inches And Less Than 5% Of The Particles Pass Through A Mesh Screen With Openings Of About 0059 Inches A Method For Manufacturing Such Panels Is Also Provided |
| 8,133,600 | Siloxane Polymerization In Wallboard | 3/13/2012 | Wang, Xuming ; Liu, Qingxia ; Reed, Paul ; Yu, Qiang | Polymerization Of Siloxane Is Improved Using A Gypsum-Based Slurry That Includes Stucco, Class C Fly Ash, Magnesium Oxide And An Emulsion Of Siloxane And Water This Slurry Is Used In A Method Of Making Water-Resistant Gypsum Articles That Includes Making An Emulsion Of Siloxane And Water, Then Combining The Slurry With A Dry Mixture Of Stucco, Magnesium Oxide And Class C Fly Ash The Slurry Is Then Shaped As Desired And The Stucco Is Allowed To Set And The Siloxane Polymerizesthe Resulting Product Is Useful For Making A Water-Resistant Gypsum Panel Having A Core That Includes Interwoven Matrices Of Calcium Sulfate Dihydrate Crystals And A Silicone Resin, Where The Interwoven Matrices Have Dispersed Throughout Them A Catalyst Comprising Magnesium Oxide And Components From A Class C Fly Ash |
| 8,137,490 | Process Of Manufacturing Cement Based Armor Panels | 3/20/2012 | Frank, William A. ; Dubey, Ashish | A Process For Making A Fiber Reinforced Cementitious Product Such As A Panel Which Hardens To An Ultra-High Compressive Strength Composite For Use In Making Panels With Ballistic And Blast Resistant Properties The Panel Has A Continuous Phase Resulting From Curing An Aqueous Mixture, In The Absence Of Silica Flour, Of Inorganic Cement Binder, Inorganic Mineral Filler Having A Particle Size Of About 150-450 Microns, Pozzolanic Mineral Filler, And Polycarboxylate Based Superplasticizer Self-Leveling Agent, And Water The Mixture May Also Include Alkanolamine And Acid Or Acid Salt The Continuous Phase May Be Reinforced With Fiber Distributed In The Continuous Phase Before Curing To Form A Panel The Panel May Be Reinforced With A Fiber Reinforced Skin Attached To At Least One Surface Of The Core, Eg, By Lamination With An Adhesive, Eg, Epoxy, To Form A Ballistic And Blast Resistant Cementitious Armor Panel |
| 8,142,914 | Gypsum-Containing Product And Gypsum Board | 3/27/2012 | Yu, Qiang ; Sucech, Steven W. ; Groza, Brent E. ; Mlinac, Raymond J. ; Jones, Frederick T. ; Henkels, Paul J. | The Invention Provides A Set Gypsum-Containing Product Having Increased Resistance To Permanent Deformation And A Method For Preparing It Comprising Forming A Mixture Of A Calcium Sulfate Material, Water, And An Appropriate Amount Of One Or More Enhancing Materials Chosen From Condensed Phosphoric Acids, Each Of Which Comprises 2 Or More Phosphoric Acid Units; And Salts Or Ions Of Condensed Phosphates, Each Of Which Comprises 2 Or More Phosphate Units The Mixture Is Then Maintained Under Conditions Sufficient For The Calcium Sulfate Material To Form A Set Gypsum Material |
| 8,142,915 | Foamed Slurry And Building Panel Made Therefrom | 3/27/2012 | Blackburn, David R. ; Lu, Runhai ; Tracy, Sharon L. ; Liu, Qingxia ; Wittbold, James R. ; Petersen, Bruce Lynn ; Li, Alfred ; Fall, John L. ; Shake, Michael P. ; Lee, Chris | A Gypsum Slurry Is Described That Includes Water, A Hydraulic Component Comprising At Least 50% Calcined Gypsum By Weight Based On The Dry Weight Of The Hydraulic Component, Foam, A Defoamer And A Polycarboxylate Dispersant In Some Embodiments Of The Invention, The Defoamer Is Combined With The Dispersant Prior To Being Added To The Gypsum Slurry The Defoamer And Dispersant Can Be Added As A Physical Mixture, Wherein The Defoamer Is Attached Onto The Dispersant Polymer, Or A Combination Thereof A Gypsum Building Panel Is Made From The Gypsum Slurry |
| 8,146,316 | Electrified Ceiling Grid | 4/3/2012 | Boss, Daniel ; Liang, Ying (Lora) | An Elongated Grid Tee For Supplying Low Voltage Power On A Suspended Ceiling Comprising At Least Two Electrically Conductive Paths Electrically Insulated From Each Other, Extending Lengthwise Of The Tee, And Accessible For Receiving Or Supplying Electrical Power At Numerous Locations Along The Length Of The Tee |
| 8,147,629 | Ceiling Tile Construction | 4/3/2012 | Baig, Mirza A. | A Ceiling Tile Of Gypsum And Cellulose Fibers Formed Into A Board By Initially Mixing The Fibers And Gypsum In A Water-Based Slurry That Is Felted And Thereafter Pressed And Dried With A Desired Board Thickness, The Dried Board Being Processed To Form A Plurality Of Holes In A Face Thereof Through At Least The Majority Of The Thickness Of The Board, The Collective Volume Of The Holes Being Sufficient To Reduce The Weight Of The Board By At Least 10% And Increase The NRC Exhibited By The Board Over That Which Would Otherwise Be Found In A Board Of The Same Composition Without Such Holes |
| 8,163,352 | Method For Smoothing Cementitious Slurry In The Production Of Structural Cementitious Panels | 4/24/2012 | Jones, John G. | A Vibrating Smoothing Device Or Plate Transverse To A Direction Of Travel Of Deposited Gypsum-Cementitious Slurry And Embedded Chopped Fibers The Plate Is Used To Smooth The Top Surface Of The Slurry Panel As It Exits A First Fiber Embedment Station And A Second Slurry Depositing Station Before Passing Through A Second Fiber Embedment Station Of A Structural Cementitious Panel Production Line To Remove Grooves And Other Non-Uniform Surface Imperfections To Have The Slurry Cover The Embedded Fibers The Plate Is Designed To Float Over The Surface Of The Formed Slurry Without Tearing Or Otherwise Damaging The Surface Of The Heavily Fiber Reinforced Surface Layers Of The Formed Slurry Before It Sets The Vibrating Plate Is Pivotally Mounted On The Web Production Line So It Can Float Over The Panel Surface During Use, But Be Raised Off The Line When Not In Use |
| 8,181,412 | Expandable Ceiling Grid | 5/22/2012 | Miklosz, Mark ; Jacobs, Daniel ; Wascow, Joseph ; Oshgan, Stephen | A Preassembled Suspended Ceiling Grid Module Comprising A Plurality Of Parallel Main Tees And A Plurality Of Cross Tees, The Main And Cross Tees Each Having Horizontal Flanges Extended To Both Sides Of A Central Plane, The Cross Tees Being Joined At Their Ends To The Main Tees With End Connections That Enable The Module To Be Folded In A Plane Corresponding To An Eventual Ceiling Plane In A Zigzag Pattern, Such That The Cross Tees Lie In Directions Generally Parallel To The Main Tees With The Cross Tees Connected On A Side Of A Particular Main Tee Being Folded In A Common Direction Relative To Their End Connection, And Where Connected To An Adjacent Main Tee Being Folded In An Opposite Direction Relative To Their End Connections With Said Adjacent Tee |
| 8,182,652 | Method Of Making A Coating And A Coated Acoustical Panel Using Degraded Fibers | 5/22/2012 | Englert, Mark ; Lu, Runhai ; Langdon, Matthew | An Acoustical Panel Is Made By Applying A Thin, Acoustically-Transparent Coating To An Acoustical Base Mat A Pulp Is Made From One Or More Fillers, A Fibrous Filler, A Binder And Water A Thickener Solution Is Prepared From A Thickener And Water A Portion Of The Pulp And The Thickener Solution Are Mixed Under High Shear Conditions To Degrade The Fibrous Filler And Form A Smooth Coating The Coating Is Applied To And Distributed Over A Base Mat And The Coated Base Mat Is Then Cut And Dried To Form A Coated Acoustical Panel The Panel Is Free Of Visible Mineral Nodules On The Surface Of The Coating Optionally, The Pulp Is A Portion Of A Pulp Used To Make The Base Mat Other Embodiments Include The Use Of Recycled Dust Or Fine Particles Of The Acoustical Panel Obtained From Cutting Or Shaping The Base Mat Or Coated Panels |
| 8,182,922 | Composite Ceiling Tile | 5/22/2012 | Baig, Mirza A. ; Polyner, John J. ; Couch, Terry | An Improved Economically Produced Clean Room Ceiling Tile Formed As A Composite Comprising A Base Board And A Finish Coated Paper Facer Laminated To The Base Board The Base Board Is Preferably Made With Excess Thickness And Is Machined To A Desired Caliper The Machined Board Is Sealed With A Clay Coating And Thereafter Coated With A Water-Based Adhesive The Paper Facer Is Laminated To The Board With The Water-Based Adhesive And Is Finish Coated With A Water-Based Wet Scrubbable Coating The Paper Facer Is Easy To Laminate, Exhibits Excellent Coverage Of Surface Defects In The Base Board Surface, Is Fully Compatible With The Water-Based Finish Coating, And Contributes To The Sag Resistance Of The Tile |
| 8,191,267 | Tool With Replaceable Blade | 6/5/2012 | Patel, Amar Arvind ; Rosso, Aaron Charles ; Myers, Matthew Earle ; Fong, Scott | A Tool Handle For Use With A Removable Blade Having A Latch Opening, The Tool Handle Having A Housing Defining A Blade Chamber In The Housing, A Latch Disposed In The Housing, Configured For Moving Between A Latched Position And A Released Position In The Latched Position, The Latch Is Configured To Extend Through The Latch Opening Also Included Is An Actuator At Least Partially Enclosed Within The Housing, Configured For Moving Between A Rest Position And A Depressed Position, Wherein Movement Of The Actuator To The Depressed Position Causes The Latch To Move To The Released Position |
| 8,197,952 | High Starch Light Weight Gypsum Wallboard | 6/12/2012 | Yu, Qiang ; Song, Weixin D. ; Lynn, Michael R. | The Invention Generally Provides Gypsum-Containing Slurries Including Stucco, Naphthalenesulfonate Dispersant, And Pregelatinized Starch The Naphthalenesulfonate Dispersant Is Present In An Amount Of About 01%-30% By Weight Based On The Weight Of Dry Stucco The Pregelatinized Starch Is Present In An Amount Of At Least About 05% By Weight Up To About 10% By Weight Of Pregelatinized Starch By Weight Based On The Weight Of Dry Stucco In The Formulation Other Slurry Additives Can Include Trimetaphosphate Salts, Accelerators, Binders, Paper Fiber, Glass Fiber, And Other Known Ingredients The Invention Also Comprises The Gypsum-Containing Products Made With Such Slurries, For Example, Gypsum Wallboard, And A Method Of Making Gypsum Wallboard |
| 8,204,698 | Method For Determining Structural Parameters Of Composite Building Panels | 6/19/2012 | Li, Alfred C. ; Kennedy, Arthur ; Mckeever, Legal Representative, Kristin | A Method Of Determining Face Paper Properties Of Wallboard Including Providing A Core Strength Value Of The Wallboard, Determining A Required Nail Pull Value Based The Wallboard Specifications And Calculating A Face Paper Stiffness Value Based On The Provided Core Strength Value And The Determined Nail Pull Value The Method Includes Displaying The Calculated Face Paper Stiffness Value On A Display Device |
| 8,205,341 | Tool With Replaceable Blade | 6/26/2012 | Rosso, Aaron Charles ; Myers, Matthew Earle ; Patel, Amar Arvind ; Fong, Scott | A Tool Is Provided, Having A Handle With A Blade Chamber Defining A Blade Chamber Cavity, A First Locking Element, And A Second Locking Element That Is User Actuated, And A Removable Blade With A Tang Engageable In The Blade Chamber Cavity And A Working Portion A Blade Sleeve, Is Also Provided, At Least A Portion Of Which Is Located On The Tang |
| 8,210,310 | Tunable Acoustical Plaster System And Method Of Making It | 7/3/2012 | Yeung, Lee K. ; Albarran, Enrique L. | A Method Of Installing An Acoustical System That Provides A Desired Sound Attenuation Includes Attaching An Acoustical Panel Having A First Density, A First Porosity And A First Void Volume To The Substrate A First Finishing Layer Is Prepared With First Particles, A First Binder, A First Rheological Modifier And Water Which Are Combined, Applied To The Substrate And Dried The First Finishing Layer Has A First Density When The First Sound Attenuation Changes To A Second Sound Attenuation A Second Finishing Layer Is Prepared To Include Second Particles, A Second Binder, A Second Rheological Modifier And Water The Dried Second Finishing Layer Has A Second Density If The Second Density Is Less Than The First Density, The Second Sound Attenuation Is Greater Than The First Sound Attenuation If The Second Density Is Greater Than The First Density, The Second Sound Attenuation Is Less Than The First Sound Attenuation |
| 8,226,766 | Set Accelerator For Gypsum Hydration | 7/24/2012 | Veeramasuneni, Srinivas ; Yu, Qiang | In A First Embodiment Of The Invention, Aged Brushite Is Combined With Calcium Sulfate Hemihydrate And Water To Make A Gypsum Slurry Aged Brushite Slurry Behaves Similarly To Calcium Sulfate Dihydrate To Act As A Seed Crystal And Rapidly Initiate Crystallization The Brushite Slurry Does Not Require The Addition Of A Coating To Maintain Its Activity Over Time Compared To Calcium Sulfate Dihydrate Set Accelerators A Gypsum-Based Product Made Using Brushite Slurry As The Set Accelerator Is A Second Embodiment The Product Has The Brushite Molecules Integrated As Part Of The Calcium Sulfate Dihydrate Matrix And Is Distributed Throughout The Matrix |
| 8,251,175 | Corrugated Acoustical Panel | 8/28/2012 | Englert, Mark ; Yu, Qing C. | An Acoustical Panel Construction Useful As A Suspended Ceiling Tile Having A Rectangular Shape Bounded By Edges And Establishing A Face Area Comprising At Least One Corrugated Layer Or Layers Of A Total Thickness, The Layer Or Layers Having A Multitude Of Parallel Flutes Extending Across An Expanse Of The Rectangular Shape Substantially From One Edge Of The Panel To An Opposite Edge, The Flutes Being Formed By Walls Of The Layer Or Layers And Being Of Known Volume, A Series Of Apertures Each Of Known Area Through The Wall Or Walls Of The Flutes Communicating With The Atmosphere At The Face, The Aperture Area, Flute Cavity Volume Associated With An Aperture, And The Total Thickness Of The Corrugated Layers Associated With An Aperture Being Arranged To Produce A Maximum Absorption Frequency Between 200 And 2,000 Hz |
| 8,257,489 | Slurries And Methods Of Making Light Weight Gypsum Board | 9/4/2012 | Yu, Qiang ; Song, Weixin D. ; Lynn, Michael R. | The Invention Generally Provides Gypsum-Containing Slurries Including Stucco, Naphthalenesulfonate Dispersant, And Pregelatinized Starch The Naphthalenesulfonate Dispersant Is Present In An Amount Of About 01%-30% By Weight Based On The Weight Of Dry Stucco The Pregelatinized Starch Is Present In An Amount Of At Least About 05% By Weight Up To About 10% By Weight Of Pregelatinized Starch By Weight Based On The Weight Of Dry Stucco In The Formulation Other Slurry Additives Can Include Trimetaphosphate Salts, Accelerators, Binders, Paper Fiber, Glass Fiber, And Other Known Ingredients |
| 8,262,820 | Method Of Water Dispersing Pregelatinized Starch In Making Gypsum Products | 9/11/2012 | Yu, Qiang ; Song, Weixin David | The Invention Provides In One Embodiment A Gypsum-Containing Slurry Including Stucco And An Aqueous Pre-Dispersion Of A Pregelatinized Starch Also Provided Is A Method Of Making Gypsum Wallboard By Providing A Pre-Dispersion Of The Pregelatinized Starch In Water, And Adding The Pregelatinized Starch Pre-Dispersion To The Gypsum-Containing Slurry The Pregelatinized Starch Can Have A Particle Size Distribution Within The Following Range: D (01)=About 20_-35_, D (05)=About 60_-110_, D (09)=About 100_-220_ |
| 8,266,860 | Grid Tee For Suspension Ceiling | 9/18/2012 | Lehane, Jr., James J. ; Gulbrandsen, Peder J. ; Likozar, Martin E. | In One Embodiment, A Roll-Formed Sheet Metal Tee For Grid Type Suspended Ceilings With The Face Of Its Flange Integral With The Stem And The Layers Of The Stem Fixed Together For Improved Torsional Strength An Upper Region Of The Stem Can Have One Or More Of Its Layers Folded To Increase Suspension Wire Breakout Strength A Stiffening Bulb Is Below Suspension Wire Receiving Holes So That A Loop Of The Suspension Wire Through The Tee Has A Narrow Profile And Thereby Avoids Interference With Ceiling Panels During Their Installation Or Removal Other Embodiments Of A Tee Share The Feature Of A Narrow, Suspension Wire Receiving Upper Stem Portion |
| 8,298,332 | Lightweight Cementitious Compositions And Building Products And Methods For Making Same | 10/30/2012 | Dubey, Ashish | Cementitious Compositions And Methods For Making Same, In Which The Cementitious Compositions Include 35-60 Wt % Cementitious Reactive Powder (Also Termed Portland Cement-Based Binder), 2-10 Wt % Expanded And Chemically Coated Perlite Filler, 20-40 Wt % Water, Entrained Air, And Optional Additives Such As Water Reducing Agents, Chemical Set-Accelerators, And Chemical Set-Retarders In Addition, The Lightweight Cementitious Compositions May Contain 0-25 Wt % On A Wet Basis Secondary Fillers Such As Expanded Clay, Shale Aggregate, And Pumice |
| 8,303,159 | Efficient Wet Starch Preparation System For Gypsum Board Production | 11/6/2012 | Yu, Qiang ; Schenck, Ron ; Digennaro, Salvatore ; Folson, Stephen ; Henry, Kevin ; Guined, Tim | The Present Invention Provides A Wet Starch Preparation System For Gypsum Wallboard Comprising A Loss-In-Weight Starch Feeder, A Venturi Mixer, A Vacuum Pick-Up Unit For Supplying The Dry Starch From The Feeder At An Adjustable Rate To The Venturi Mixer, A First Water Pump For Supplying Water At An Adjustable Rate To The Venturi Mixer To Form A Starch Pre-Dispersion Of From About 2% To About 10% By Weight Starch And A Second Water Pump For Supplying Gauging Water To The Starch Pre-Dispersion, The System Equipped With Appropriate System Controls The Present System Provides More Efficient Use Of Starch Such That The Amount Of Pregelatinized Starch Is At Least About 10% Less Than A System In Which The Starch Is Not Pre-Dispersed In Water Prior To The Board Mixer The System Can Be Used To Make Gypsum-Containing Products Including Gypsum Wallboard Having Increased Board Strength And Reduced Board Weight |
| 8,303,709 | Gypsum-Containing Product | 11/6/2012 | Yu, Qiang ; Sucech, Steven W. ; Groza, Brent E. ; Mlinac, Raymond J. ; Jones, Frederick T. ; Henkels, Paul J. | The Invention Provides A Set Gypsum-Containing Product Having Increased Resistance To Permanent Deformation And A Method For Preparing It Comprising Forming A Mixture Of A Calcium Sulfate Material, Water, And An Appropriate Amount Of One Or More Enhancing Materials Chosen From Condensed Phosphoric Acids, Each Of Which Comprises 2 Or More Phosphoric Acid Units; And Salts Or Ions Of Condensed Phosphates, Each Of Which Comprises 2 Or More Phosphate Units The Mixture Is Then Maintained Under Conditions Sufficient For The Calcium Sulfate Material To Form A Set Gypsum Material |
| 8,309,231 | Acoustical Tile | 11/13/2012 | Carbo, Adelaida ; Hacker, Gary ; Byers, Charles ; Cimaglio, Scott Daryl | The Present Invention Relates To An Acoustical Tile That Includes A Core And A Surface Treatment The Surface Treatment Comprises A Formaldehyde-Free Latex Binder, The Binder Including At Least One Formaldehyde-Free Biocide The Present Invention Also Provides A Process Of Manufacturing An Acoustical Tile |
| 8,314,336 | Specialty Ceiling Structure And Functional Ceiling Grid | 11/20/2012 | Liang, Ying (Lora) ; Boss, Daniel ; Gee, Graeme | A Rectangular Ceiling Tile Proportioned For Use In A Standard Rectangular Ceiling Grid Module Formed By Grid Tees, The Tile Having A Pair Of Conductors Arranged To Feed Low Voltage Electrical Power From The Grid Elements To An Electric Or Electronic Device Carried On The Tile, The Conductors Each Extending To An Edge Or Edges Of The Tile And Adapted To Make Physical Contact With A Conductor Carried On A Grid Element When Supported On Such Grid Element |
| 8,316,600 | Wall Conforming Suspended Ceiling Molding | 11/27/2012 | Wendt, Alan C. | A Wall Molding For A Suspended Ceiling Comprising A Roll-Formed Sheet Metal Body Having A Generally Upright Component To Be Fixed To A Wall And A Projecting Component Extending Generally Transversely To The Upright Component And Adapted To Underlie And Support The Edges Of Ceiling Tiles And Ends Of Grid Runners, The Projecting Component In A Free State Extending Across A Plane Defined By The Upright Component To A Line Adapted To Abut The Wall When The Upright Component Is Drawn Towards The Wall |
| 8,323,429 | Method For Preparing Three-Dimensional Plaster Objects | 12/4/2012 | Immordino, Salvatore C. ; Yeung, Lee K. | The Present Invention Relates To A Method For Producing Three-Dimensional Plaster Objects Via Thin Layer Deposition The Inventive Method Comprises Steps Of Depositing A Layer Of A Calcium Sulfate Hemihydrate Slurry Onto The Surface Of A Support In A Predetermined Pattern And Activating The Slurry With An Activating Agent So As To Accelerate The Setting Reaction Of Calcium Sulfate Hemihydrate And Water To Form Set Calcium Sulfate Dihydrate The Depositing And Activating Steps Can Be Repeated As Necessary Until The Desired Three-Dimensional Plaster Object Is Formed |
| 8,323,785 | Lightweight, Reduced Density Fire Rated Gypsum Panels | 12/4/2012 | Yu, Qiang ; Veeramasuneni, Srinivas ; Song, Weixin D. ; Luan, Wenqi | A Reduced Weight, Reduced Density Gypsum Panel That Includes High Expansion Vermiculite With Fire Resistance Capabilities That Are At Least Comparable To (If Not Better Than) Commercial Fire Rated Gypsum Panels With A Much Greater Gypsum Content, Weight And Density |
| 8,329,308 | Cementitious Article And Method For Preparing The Same | 12/11/2012 | Liu, Qingxia ; Shake, Michael P. ; Yu, Qiang | A Cementitious Article And A Method Of Making A Cementitious Article Are Disclosed The Cementitious Article Comprises A Cementitious Component That Comprises A Polyvinyl Acetate Type Polymer, A Monobasic Phosphate, And Optionally Boric Acid Cementitious Articles, Such As Board, Are Prepared Such That The Polyvinyl Acetate Type Polymer, The Monobasic Phosphate, And Optionally Boric Acid Can Be Present In The Cementitious Core, And/Or In Dense Layers If Present The Concentration Of The Polyvinyl Acetate Type Polymer, Monobasic Phosphate, And Optionally Boric Acid In The Cementitious Article Can Increase From A Central Region A To Peripheral Regions B And C, Respectively In Some Embodiments, The Polyvinyl Acetate Type Polymer Is A Polyvinyl Alcohol And The Monobasic Phosphate Is Monoammonium Phosphate |
| 8,336,843 | Secure Locking Attachment Device Useful With Suspended Ceiling Systems | 12/25/2012 | Gulbrandsen, Peder ; Underkofler, Abraham M. ; Paulsen, Mark R. | An Attachment Device Useful With Suspended Ceiling Systems Is Provided In Disclosed Embodiments, The Device Comprises A Clip That Matingly Engages A Bulb Of A Ceiling Grid Tee The Device May Include A Reinforcing Sleeve And Can Be Used To Increase The Load Carrying Capacity Of Suspended Ceiling Systems While Providing A Simple, Quick Method Of Attaching The Suspended Ceiling Grid To The True Ceiling |
| 8,337,976 | Abuse-Resistant Cast Acoustical Ceiling Tile Having An Excellent Sound Absorption Value | 12/25/2012 | Mayers, Thomas M. ; Bitzan, David B. ; Russart, Jeffry T. | An Abuse-Resistant, Cast Acoustical Ceiling Tile Having Improved Impact Resistance And Excellent Sound Absorption Values The Ceiling Tiles Have Aggregate Particles Applied To The Surface Of A Wet Pulp In The Casting Process And The Particles Are Embedded In The Pulp By Compression With A Roll And/Or Smooth Plates The Aggregate Particles Have An Average Particle Diameter Of At Least About 1,000 Microns The Ceiling Tiles Have Excellent Sound Absorption Properties With A Noise Reduction Coefficient (NRC) Of At Least About 050 Calcium Carbonate Is The Preferred Aggregate Particle Material |
| 8,338,719 | Directly Electrified Ceiling Grid | 12/25/2012 | Lehane, James J. ; Gulbrandsen, Peder | An Electrified Grid For A Suspended Ceiling Comprising First And Second Grid Sections Lying In A Common Ceiling Plane, Each Grid Section Having Metal Main Tees And Metal Cross Tees Intersecting With The Main Tees, The First And Second Sections Being Adjacent One Another And Having Respective Main Tees In Parallel Alignment And With A Fixed Spacing Not Substantially Greater Than The Length Of The Cross Tees, The Grid Sections Being Electrically Insulated From One Another Whereby At Least Said Main Tees Of Fixed Spacing Can Be Held At Opposite Voltage Polarities And An Electrical Device Carried On Or Above The Ceiling Can Be Powered By Electrical Connection Of Separate Ones Of Its Leads To The Metal Tees Of A Respective One Of Said First And Second Grid Sections |
| 8,343,273 | Method Of Modifying Beta Stucco Using Diethylene-Triamine-Pentaacetic Acid | 1/1/2013 | Lettkeman, Dennis M. ; Kaligian, Ii, Raymond A. ; Cloud, Michael L. ; Wilson, John W. | A Method For Preparing A Modified Beta-Stucco From Calcined Natural Rock Gypsum That Includes Preparing A Solution Of Liquid Diethylene-Triamine-Pentaacetic Acid In Water, Applying The Solution Onto Beta-Stucco While Hot From The Calciner, Forming A Wetted Beta-Stucco, And Allowing The Wetted Stucco To Dry And Heal, Forming The Modified Beta-Stucco |
| 8,347,575 | Lightweight Acoustical Flooring Underlayment | 1/8/2013 | Bierwirth, Lance William | An Acoustical Flooring Underlayment For Placement Between A Subfloor And A Finished Floor, Includes A Mat Having An Upper Surface, An Opposite Lower Surface And Including A Plurality Of Corrugations Creating A Plurality Of Depressions In The Upper Surface A Layer Of Foam Is Applied To The Upper Surface And Constructed And Arranged To Fill The Depressions For Creating A Generally Planar Top Surface Configured For Accommodating The Finished Floor |
| 8,349,919 | Reinforced Erosion Control Matrix And Its Application | 1/8/2013 | Breen, John T. | A Dry Mixture For Use With Water Has Been Developed To Be Used As An Erosion Control Spray Matrix For Reducing Erosion Of Sandy Soils While Awaiting Development Of A Root System Of Plants To Hold The Soil In Place The Dry Erosion Control Mixture Includes Alpha-Calcined Calcium Sulfate Hemihydrate, A Non-Gypsum Binder Polymer; Biodegradable Fibers; And Wood Fiber Mulch An Erosion Control Slurry Is Applied To An Area Of Soil In Need Of Erosion-Control After Obtaining The Dry Erosion Control Mixture, It Is Mixed With Water To Form Erosion Control Slurry The Ratio Of The Composition To The Water Is Preferably From About 1:8 To About 1:12 Seed Is Distributed Over The Soil And The Erosion Control Slurry Is Applied Over The Distributed Seed |
| 8,359,801 | Grid Runner | 1/29/2013 | Lehane, Jr., James J. ; Gulbrandsen, Peder J. ; Hammond, John L. ; Underkofler, Abraham M. ; Paulsen, Mark R. | A Roll-Formed Grid Runner Comprising A Sheet Metal Strip Folded Into An Upper Hollow Single Wall Reinforcing Bulb, A Double Wall Web Below The Bulb, A Channel Extending Laterally From Both Sides Of A Lower End Of The Web To A Bend And Upwardly From The Bend To A Panel Supporting Elevation, The Bend On Each Side Of The Web Existing At A Longitudinally Extending Score Line Where A Thickness Of The Strip Is Locally Reduced |
| 8,359,803 | Grid Runner Cap Anchoring Lance | 1/29/2013 | Lehane, Jr., James J. ; Farley, Steven E. ; Leahy, Donald J. ; Koval, Ronald J. ; Pomeroy, Paul A. | An Elongated Grid Runner, And Its Manufacture, Comprising A Pair Of Overlying Metal Strips Roll-Formed Together Into A Shape Suitable For Use In A Rectangular Grid To Support Ceiling Panels, One Of Said Strips Serving As A Visible Cap For Concealing The Other Strip Forming The Main Body Of The Grid Runner When The Grid Member Is Employed In A Completed Ceiling, The Strips Being Lanced At Each End Of The Grid Runner To Lock The Cap Strip On The Main Body Strip Whereby When The Overlying Strips Are Simultaneously Cut To A Finish Length Prior To Finish Roll-Forming, The Ends Of The Strip Are Maintained In Substantially Overlying End-To-End Registration Where The Cap Is Visible In A Finished Ceiling |
| 8,359,812 | Single Strip Single Web Grid Tee | 1/29/2013 | Raheel, Muhammad M. ; Lehane, Jr., James J. ; Lalonde, Paul | A Grid Tee And Method Of Making The Same Comprising An Elongated Sheet Metal Strip Folded On Itself To Integrally Form A Lower Double Wall Flange, A Hollow Upper Reinforcing Bulb, And A Web Extending Upwardly Between The Flange And Bulb, The Flange Generally Lying In A Horizontal Plane, Having Opposed Spaced Parallel Edges Extending Longitudinally, And Being Perpendicular To The Web, The Web Lying In A Generally Vertical Plane, The Strip Having Two Longitudinal Extending Marginal Edge Zones, Said Marginal Edge Zones Being Generally Vertically Disposed And Fixed At Least At Longitudinally Spaced Locations To A Central Area Of The Strip That Forms A Portion Of The Web And Forming A Double Web Layer Area, The Marginal Edge Zones Of The Strip Being Vertically Spaced From One Another Such That A Portion Of The Central Area Of The Strip That Forms A Part Of The Web Is A Single Exclusive Layer |
| 8,366,823 | Fly Ash Based Lightweight Cementitious Composition With High Compressive Strength And Fast Set | 2/5/2013 | Perez-Pena, Marianela | A Method Of Making A Rapid Setting Lightweight Cementitious Composition With Improved Compressive Strength For Products Such As Boards Is Disclosed The Method Mixes Fly Ash, Alkali Metal Salt Of Citric Acid And Lightweight Aggregate With Water Compositions Which Include Fly Ash, Alkali Metal Salts Of Citric Acid And Lightweight Aggregate Are Also Disclosed |
| 8,381,486 | Unique Profile Ceiling Grid | 2/26/2013 | Lehane, Jr., James J. ; Gulbrandsen, Peder J. ; Paulsen, Mark R. ; Underkofler, Abraham M. | Suspended Ceiling Grid Runners Include A Flange Extending Laterally To Both Sides, The Flange Forming A Three Dimensional Face Including Sides Visible From Below A Plane Of The Grid, Opposed Cross Runners Intersecting Through Runners With Their Ends Joined By Mutually Interlocking End Connectors Extending Through A Slot In The Through Runner, The Cross Runner Ends Including End Edges Configured To Abut A Respective Side Of The Flange Of The Through Runner, A Connector When Connected To An Opposite Connector Causes The Associated End Edges To Resiliently Locally Deflect The Abutted Flange Side To Substantially Eliminate Any Gap Therebetween |
| 8,383,233 | Ceiling Tile Base Mat | 2/26/2013 | Palm, Gregory O. ; Brown, Martin ; Yu, Qing Claire ; Cao, Bangji | A Water Felted Base Mat For A Suspended Ceiling Tile Comprising On A Weight Basis About _ Mineral Wool, Starch Binder, Limited To About _, Newsprint, Limited To About _, And About _ Expanded Glass Beads |
| 8,397,458 | Bracket Useful With Sloped Suspended Ceiling Systems | 3/19/2013 | Tedesco, Lee M. ; Lehane, Jr., James J. ; Underkofler, Abraham M. ; Paulsen, Mark R. | The Invention Provides A Bracket And Method Of Its Use For Adapting Standard Wall Angle Trim For Use In Sloped Ceiling Construction The Disclosed Bracket Arrangement Can Be Used For The Top Edge Or Bottom Edge Of A Sloped Ceiling And Be Adjusted To Match The Angle Of Any Practical Ceiling Slope In Disclosed Embodiments, The Bracket Has The Form Of A Rectangular Flat Steel Sheet The Sheet Has A Hinge Or Bend Line Running Lengthwise In Its Mid-Area The Bend Line Is Made By Cutting The Sheet Intermittently Along Its Length And Thereby Dividing The Sheet Into Two Sections The Cuts May Be Made, For Example, By Punching Elongated Slots Along The Bend Line In A Blank Being Formed Into The Bracket Also Punched Into The Bracket Blank Are A Plurality Of Holes Distributed Lengthwise On Marginal Areas Of The Two Sections Of The Blank |
| 8,397,462 | Open Web Grid Runner | 3/19/2013 | Gulbrandsen, Peder J. ; Lehane, Jr., James J. ; Underkofler, Abraham M. | A Suspended Ceiling Grid Runner Comprising Separate Parallel Upper And Lower Chords, A Plurality Of Identical Web Plates Fixed Between The Chords And The Plates Having A Height Less Than The Height Of The Grid Runner And A Width, The Chords Being Made Of Roll-Formed Sheet Metal Strips And Symmetrical About A Vertical Plane, The Chordal Strips Each Having Marginal Sections Folded Parallel To One Another And On Opposite Sides Of The Vertical Plane, The Web Plates Including Vertical Slots For Receiving Connectors Of Cross Runners, The Web Plates Being Spaced At Regular Centers Along The Grid Runner With A Distance That Is A Small Fraction Of The Nominal Length Of The Grid Runner, The Gaps Between Adjacent Web Plates Being Longer Than The Height Of The Grid Runner |
| 8,424,268 | Grid Members For A Suspended Ceiling And Methods Of Making Same | 4/23/2013 | Field, Graham Keith ; Voigt, Thomas Andreas | Grid Members, Namely A Runner (10) And Wall Angle (400) For Suspended Ceiling Grids, Are Disclosed Certain Embodiments Of The Runner And The Wall Angle Have Two Web Portions (28, 30) And At Least One Distinct Indent Portion (62) To Define A Space Between The Web Portions An Adhesive (56) May Be Disposed Within One Or More Of The Indent Portions (62) To Adhere The Two Web Portions (28, 30) To Each Other Certain Embodiments Of The Runner Or Wall Angle Have Flange Portions (32, 34) That May Have Indent Portions As Well One Or More Of These Indent Portions May Contain Adhesive Some Embodiments Of The Runner Or Wall Angle Have Overturned Cap Portions On The Flange Portions, And An Adhesive May Be Placed Between The Overturned Cap Portions And Upwardly Facing Surfaces Of The Flange Portions |
| 8,441,156 | Electrically Conductive Module | 5/14/2013 | Boss, Daniel ; Qualls, Scott ; Kaiserman, Terrance Z. ; Margolin, Keith J. ; Wassief, Michael ; Chai, Liang | An Electrically Conductive Module Is Provided The Module Includes A Panel Configured To Engage With One Or More Conductive Structural Elements The Module Further Includes Conductive Layers Formed On Or In The Panel Each Conductive Layer Has A Terminal Configured To Be In Electrical Communication With At Least One Of The Conductive Structural Elements In One Embodiment Of The Present Invention, A First Terminal Is Configured To Be In Electrical Communication With A First Conductive Structural Element And A Second Terminal Is Configured To Be In Electrical Communication With A Second Conductive Structural Element In Another Embodiment Of The Present Invention, Both A First Terminal And A Second Terminal Are Configured To Be In Electrical Communication With A First Conductive Structural Element In This Embodiment, The First And Second Terminals Are Respectively Configured To Be In Electrical Communication With First And Second Conductive Portions Of The First Conductive Structural Element |
| 8,443,564 | Field Adjustable Grid Intersection Clip | 5/21/2013 | Bankston, Jr., John D. | A Clip For A Suspended Ceiling Grid To Join A Pair Of Grid Runners Intersecting A Third Grid Runner From Opposite Sides Of The Third Grid Runner, The Clip Being Bendable Sheet Metal Symmetrical About A Vertical Plane, Having A Saddle Portion With A Seat And Generally Planar Flaps Depending From Opposite Sides Of The Seat, Including A Pair Of Generally Planar Wings Each Cantilevered From A Respective One Of The Flaps; The Seat Width Corresponding To A Hollow Reinforcing Bulb Of A Grid Runner, The Flaps Extend Over The Sides Of The Reinforcing Bulb And Web Of The Third Grid Runner, A Flap And Wing Joined At A Vertical Bend Line, Weaker Than Each Adjacent Area Of The Flap And Wing Whereby The Wing Can Be Manually Bent To A Desired Angle Relative To The Flap |
| 8,444,787 | Methods Of And Systems For Adding A High Viscosity Gypsum Additive To A Post-Mixer Aqueous Dispersion Of Calcined Gypsum | 5/21/2013 | Wittbold, James R. ; Song, W. David | Provided Are Methods And Systems For Introducing A Wet Gypsum Accelerator Or Other High Viscosity Production Additive To An Aqueous Dispersion Of Calcined Gypsum In A Discharge Apparatus Downstream Of A Stucco Mixer In Which The Dispersion Was Prepared These Methods And Systems Are Useful In The Production Of Various Gypsum Products Such As Board Including Wallboard And Ceiling Tiles |
| 8,453,407 | Seismic Clip | 6/4/2013 | Tedesco, Lee M. ; Lehane, Jr., James J. ; Gulbrandsen, Peder J. | A Seismic Clip For Suspended Ceiling Grid Tees That Offers High Strength, Rigidity, Versatility And Ease Of Assembly While Improving The Ability Of A Clip To Self-Align With A Grid Tee The Clip Includes A Lanced Tab That Serves To Establish And Maintain Alignment Of The Clip Body And The Tee To Which It Is Assembled Whereby A Tendency Of A Clip To Be Tilted Upwardly Relative To The Tee Is Eliminated Or Greatly Reduced The Alignment Tab Serves To Initially Align The Clip And Tee Either When It Is Assembled By Snapping It Over The Tee Or By Sliding The Tee Endwise Into The Clip The Tab Is Configured So That It Does Not Unduly Add To The Assembly Force Level When The Clip Is Snapped Over The Tee Or When The Tee And Clip Are Slipped Endwise Together |
| 8,458,977 | Wall Brace Support For Acoustical Ceiling Tee | 6/11/2013 | Gulbrandsen, Peder ; Underkofler, Abraham M. ; Paulsen, Mark R. ; Lehane, Jr., James J. | A Wall Brace Support For An Acoustical Ceiling Tee Having A Bulb Includes An Elongated Main Portion Having Two Ends; A Wall Attachment Tab At One Of The Ends, The Tab Being Operable To Abut The Wall And Receive At Least One Fastener Therethrough To Fasten The Tab To The Wall; And An Acoustical Ceiling Tee Attachment Structure At The Other End, The Structure Being Operable To Receive At Least One Fastener Therethrough To Fasten The Structure To The Bulb At A Location Spaced Away From The Wall |
| 8,470,461 | Light Weight Gypsum Board | 6/25/2013 | Yu, Qiang ; Song, Weixin D. ; Lynn, Michael R. | The Invention Generally Provides Gypsum-Containing Slurries Including Stucco, Naphthalenesulfonate Dispersant, And Pregelatinized Starch The Naphthalenesulfonate Dispersant Is Present In An Amount Of About 01%-30% By Weight Based On The Weight Of Dry Stucco The Pregelatinized Starch Is Present In An Amount Of At Least About 05% By Weight Up To About 10% By Weight Of Pregelatinized Starch By Weight Based On The Weight Of Dry Stucco In The Formulation Other Slurry Additives Can Include Trimetaphosphate Salts, Accelerators, Binders, Paper Fiber, Glass Fiber, And Other Known Ingredients The Invention Also Comprises The Gypsum-Containing Products Made With Such Slurries, For Example, Gypsum Wallboard, And A Method Of Making Gypsum Wallboard |
| 8,475,762 | Method And Apparatus To Minimize Air-Slurry Separation During Gypsum Slurry Flow | 7/2/2013 | Li, Alfred ; Lee, Chris C. ; Nelson, Chris ; Chan, Cesar ; Song, Weixin David | A Method And Apparatus For Providing An Evenly Mixed Additive Enhanced Gypsum Slurry To A Web Calcined Gypsum And Water Are Inserted Into A Mixer Through At Least One Inlet Of The Mixer The Contents Are Agitated To Form A Slurry The Slurry Is Passed From An Outlet Of The Mixer Into A Conduit An Additive Is Introduced Into The Slurry Along A Length Of The Conduit To Achieve A Flow Stream Of A Slurry/Additive Mixture A Cross Section Of The Flow Stream Is Expanded In The Conduit While Not Changing Direction Of The Flow Stream And A Direction Of The Flow Stream Is Changed While Not Expanding The Cross Section Of The Flow Stream And Conduit, All Prior To The Flow Steam Exiting From An Outlet Of The Conduit |
| 8,484,923 | Bi-Parting Accessible Ceiling System | 7/16/2013 | Wendt, Alan C. | A Suspended Ceiling Comprising A Grid Formed Of Intersecting Grid Runners And Snap-Up Panels Supported On The Grid Runners, The Grid Runners Dividing A Ceiling Area Into Standard Modules, The Pans Being Formed Of Sheet Material And Each Having Its Sides Sized To Cover The Module Size While Leaving A Space At Visible Faces Thereof Between Adjacent Panels When In An Installed Position On The Grid, At Least One Adjacent Pair Of Panels Being Displaceable From Their Installed Positions, The Gap Between A Pair Of Displaceable Panels Being Closed By A Removable Runner Or The Displaceable Panels So That When The Displaceable Panels Are Displaced From Their Installed Position And Any Removable Runner Is Removed, An Access Opening Of Twice The Standard Module Is Made Available For Accessing The Area Above The Ceiling While Adjacent Panels At Longitudinal Ends Of The Gap Between The Displaceable Panels Can Remain In Respective Installed Positions |
| 8,485,835 | Electrified Suspended Ceiling Grid | 7/16/2013 | Liang, Ying (Lora) ; Boss, Daniel ; Lalonde, Paul D. ; Gulbrandsen, Peder | A Suspended Ceiling Grid Tee Of Conventional Cross-Sectional Shape Having A Plurality Of Generally Planar Parallel And Orthogonal Surfaces And At Least Two Electrically Isolated Conductor Strips Attached To The Planar Areas Of The Tee Surfaces Extending Along Substantially The Full Length Of The Tee, A Connector For Supplying Low Voltage Electrical Power To Or From The Conductors, The Connector Having A Configuration Complementary To The Cross-Sectional Shape Of The Grid Tee And Including At Least Two Electrical Contacts For Energizing Each Of Said Conductor Strips When Said Connector Is Positioned On Said Grid Tee |
| 8,500,904 | Gypsum-Containing Product | 8/6/2013 | Yu, Qiang ; Sucech, Steven W. ; Groza, Brent E. ; Mlinac, Raymond J. ; Jones, Frederick T. ; Henkels, Paul J. | The Invention Provides A Set Gypsum-Containing Product Having Increased Resistance To Permanent Deformation And A Method For Preparing It Comprising Forming A Mixture Of A Calcium Sulfate Material, Water, And An Appropriate Amount Of One Or More Enhancing Materials Chosen From Condensed Phosphoric Acids, Each Of Which Comprises 2 Or More Phosphoric Acid Units; And Salts Or Ions Of Condensed Phosphates, Each Of Which Comprises 2 Or More Phosphate Units The Mixture Is Then Maintained Under Conditions Sufficient For The Calcium Sulfate Material To Form A Set Gypsum Material |
| 8,501,074 | Siloxane Polymerization In Wallboard | 8/6/2013 | Wang, Xuming ; Liu, Qingxin ; Reed, Paul ; Yu, Qiang | Polymerization Of Siloxane Is Improved Using A Gypsum-Based Slurry That Includes Stucco, Class C Fly Ash, Magnesium Oxide And An Emulsion Of Siloxane And Water This Slurry Is Used In A Method Of Making Water-Resistant Gypsum Articles That Includes Making An Emulsion Of Siloxane And Water, Then Combining The Slurry With A Dry Mixture Of Stucco, Magnesium Oxide And Class C Fly Ash The Slurry Is Then Shaped As Desired And The Stucco Is Allowed To Set And The Siloxane Polymerizes The Resulting Product Is Useful For Making A Water-Resistant Gypsum Panel Having A Core That Includes Interwoven Matrices Of Calcium Sulfate Dihydrate Crystals And A Silicone Resin, Where The Interwoven Matrices Have Dispersed Throughout Them A Catalyst Comprising Magnesium Oxide And Components From A Class C Fly Ash |
| 8,511,023 | Wall Panel Mounting System | 8/20/2013 | Gulbrandsen, Peder ; Ahren, Gregory M. ; Bankston, John D. | Mounting Systems For Attaching Metal Suspended Ceiling Panels To Form A Decorative Rectangular Array In One System The Panels Are Mounted On Bolt Slot Grid Runners Spaced From The Wall And Trimmed With Island Ceiling Trim In Another System, Panels Are Mounted On Unique Backer Boards That Protect The Panels Against Physical Damage By Resisting Compressive Forces On The Face Of The Panels |
| 8,511,028 | Clip Connection | 8/20/2013 | Lehane, Jr., James J. | Producing Grid Tees With A Range Of Service Duty, Reflected In The Use Of Various Gauge Sheet Stock, That Exhibit An Effective Uniform Thickness At Their Cross Tee Slots By Locally Altering A Grid Tee In The Area Of Its Cross Tee Receiving Slot Or Slots So That The Grid Tee Has A Uniform Effective Thickness At These Area(S) That Can Be Standardized Across A Manufacturer's Range Of Tee Load Ratings Preferably, A Grid Tee Is Permanently Stamped With An Indentation Or Dimple Adjacent The Cross Tee Slot And A Cross Tee Connector Has A Lead Edge Area Arranged To Seat Against The Bottom Of The Indentation |
| 8,511,429 | Ceiling Panels Made From Corrugated Cardboard | 8/20/2013 | Yu, Qing Claire ; Englert, Mark | An Acoustical Ceiling Panel Comprising A Flat Core And An Acoustically Transparent Face Sheet Adhesively Attached To One Of Two Oppositely Facing Major Sides Of The Core, The Core Comprising A Multitude Of Layers Of Corrugated Fiberboard Laminated Together, The Corrugated Fiberboard Layers Each Having A Corrugated Medium Adhesively Attached To A Flat Liner Board, The Corrugated Medium Forming Regularly Spaced Flutes Of Curvilinear Cross-Section, The Flutes Of The Layers Of Fiberboard Being Arranged In Parallel Directions Extending Perpendicularly To The Major Faces Of The Core |
| 8,519,016 | Lightweight Foamed Fly Ash Based Binders And Method | 8/27/2013 | Perez-Pena, Marianela | A Method Of Making A Lightweight Cementitious Binder Composition With Improved Compressive Strength For Products Such As Cementitious Panels Is Disclosed The Method Mixes Fly Ash, Alkali Metal Salt Of Citric Acid, Alkali Metal Silicate, Foaming Agent For Entraining Air, Water And In The Preferred Embodiment A Foam Stabilizing Agent Compositions Which Include Fly Ash Selected From The Group Consisting Of Class C Fly Ash, Class F Fly Ash And Mixtures Thereof, Alkali Metal Salts Of Citric Acid, Alkali Metal Silicates, Foaming Agents, And Preferably A Foam Stabilizer, Such As Polyvinyl Alcohol, And Do Not Require Use Of Set Retarders Compositions Containing Class F Fly Ash Can Optionally Contain Type III Portland Cement |
| 8,534,014 | Magnetic Cross Tees | 9/17/2013 | Ahren, Gregory M. | An Elongated Metal Grid Runner For A Suspended Ceiling, The Grid Runner Having A Cross-Section With An Upper Hollow Reinforcing Bulb, A Vertical Web Extending Below The Bulb, And Lower Flange Elements Extending Laterally From Opposite Sides Of The Web, The Length Of The Grid Runner Being Less Than About 9_, A Permanent Magnet Disposed On Each End Of The Grid Runner At Its Flange Elements, The Magnet Being Adapted To Overlie And Be Attracted To A Horizontal Leg Of A Steel Wall Angle To Thereby Releasably Retain The Grid Runner In Position On The Wall Angle |
| 8,536,259 | Formaldehyde Free Coatings For Panels | 9/17/2013 | Carbo, Adelaida ; Thulin, Jim ; Englert, Mark ; Lu, Runhai | The Invention, Provides A Curable, Formaldehyde Free Coating Composition Comprising A Composition Comprising A Polyacid Copolymer Crosslinked With A Hydroxyl Group-Containing Compound And Calcium Aluminosilicate Powder, Panels Coated With The Coating Composition, And A Method Of Coating A Panel With The Coating Composition |
| 8,551,241 | Fly Ash Based Lightweight Cementitious Composition With High Compressive Strength And Fast Set | 10/8/2013 | Perez-Pena, Marianela | A Method Of Making A Rapid Setting Lightweight Cementitious Composition With Improved Compressive Strength For Products Such As Boards Is Disclosed The Method Mixes Fly Ash, Alkali Metal Salt Of Citric Acid And Lightweight Aggregate With Water Compositions Which Include Fly Ash, Alkali Metal Salts Of Citric Acid And Lightweight Aggregate Are Also Disclosed |
| 8,563,139 | Non-Hydrating Plaster Composition And Method | 10/22/2013 | Yeung, Lee K. | A Method Of Finishing An Interior Wall Includes The Steps Of Preparing A Substrate Of Building Panels Comprising Gypsum, Cement Or Combinations Thereof, Said Substrate Having A Surface, Followed By Applying A Coating To The Substrate, Said Coating Comprising 5-20% By Weight Of A Latex Emulsion Binder, 40-80% By Weight Calcium Sulfate Hemihydrate, 005-2% By Weight Of A Set Preventer And 20-60% By Weight Water |
| 8,563,449 | Non-Woven Material And Method Of Making Such Material | 10/22/2013 | Mueller, Donald ; Song, Weixin ; Cao, Bangji | A Non-Woven Material And Method Of Formation Thereof Is Provided To Form A Substantially Flat Or Planar Self Supporting Core Of An Inorganic Base Fiber And An Organic Binding Fiber Preferably Using An Air-Laid Forming Head In Certain Preferred Embodiments, The Organic Base Fiber Has A Fiber Strength With A Break Load Of About 10 Grams Or Less And An Elongation Of About 20 Percent Or Less Preferably, The Organic Binding Fiber Has A Binding Component And A Structural Component Within Unitary Fiber Filaments In One Aspect, The Structural Component Of The Organic Binding Fiber Has A Composition Effective To Provide A Strength Thereof So That The Non-Woven Material Can Be Manually Cut With Minimal Effort In Such Form, The Non-Woven Material Is Suitable To Function As An Acoustic Ceiling Tile |
| 8,566,041 | Method For Determining Structural Parameters Of Composite Building Panels | 10/22/2013 | Li, Alfred | A Method Of Determining Face Paper Properties Of All Types Of Wallboard Including Providing A Core Strength Value Of The Wallboard, Determining A Required Nail Pull Value Based The Wallboard Specifications And Calculating A Face Paper Stiffness Value Based On The Provided Core Strength Value And The Determined Nail Pull Value The Method Includes Displaying The Calculated Face Paper Stiffness Value On A Display Device |
| 8,568,544 | Water Resistant Cementitious Article And Method For Preparing Same | 10/29/2013 | Engbrecht, Dick C. ; Liu, Qingxia ; Shake, Michael P. ; Wang, Xuming ; Miller, David Paul ; Bolind, Michael L. ; Reed, Paul ; Roelfs, Donald L. ; Bury, Rafael | A Fibrous Mat-Faced Cementitious Article Comprising (A) A Cementitious Core, And (B) A First Fibrous Mat Comprising Polymer Or Mineral Fibers And A Hydrophobic Finish On At Least One Surface Thereof, Wherein The Hydrophobic Finish Is In Contact With The Cementitious Core, And A Method Of Preparing A Fibrous Mat-Faced Cementitious Article, As Well As A Method Of Preparing A Water-Resistant Cementitious Article Comprising (A) Preparing An Aqueous Siloxane Dispersion, Wherein The Dispersion Comprises About 4 Wt % To About 8 Wt % Siloxane, (B) Combining The Siloxane Dispersion With A Cementitious Mixture To Provide A Cementitious Slurry, (C) Depositing The Cementitious Slurry Onto A Substrate, And (D) Allowing The Cementitious Slurry To Harden, Thereby Providing A Cementitious Article |
| 8,584,418 | Cross Runner Connector And Main Runner Receiving Hole | 11/19/2013 | Underkofler, Abraham M. ; Gulbrandsen, Peder J. ; Paulsen, Mark R. ; Lehane, James J. | A Cross Runner Connector Receivable In A Through Runner Hole That Locks With An Identical Opposed Connector And Locks With The Through Runner Hole With Increased Tensile Strength, Both Locks Being Releasable Without Tools By Manipulation Of The Associated Cross Runner |
| 8,590,160 | Grid Runner Cap Anchoring Lance | 11/26/2013 | Lehane, Jr., James J. ; Farley, Steven E. ; Leahy, Donald J. ; Koval, Ronald J. ; Pomeroy, Paul A. | An Elongated Grid Runner, And Its Manufacture, Comprising A Pair Of Overlying Metal Strips Roll-Formed Together Into A Shape Suitable For Use In A Rectangular Grid To Support Ceiling Panels, One Of Said Strips Serving As A Visible Cap For Concealing The Other Strip Forming The Main Body Of The Grid Runner When The Grid Member Is Employed In A Completed Ceiling, The Strips Being Lanced At Each End Of The Grid Runner To Lock The Cap Strip On The Main Body Strip Whereby When The Overlying Strips Are Simultaneously Cut To A Finish Length Prior To Finish Roll-Forming, The Ends Of The Strip Are Maintained In Substantially Overlying End-To-End Registration Where The Cap Is Visible In A Finished Ceiling |
| 8,590,248 | Indexing Tab For Grid Runners | 11/26/2013 | Lehane, Jr., James J. ; Leahy, Donald J. ; Farley, Steven E. ; Rowland, Thomas G. ; Gulbrandsen, Peder J. | A Roll Formed Sheet Metal Grid Runner, And Method Of Its Manufacture, For A Suspended Ceiling Grid Having Indexing Tabs Stamped From A Central Web Of The Runner Profile, The Tabs Being Effective To Reliably Locate Ceiling Panels And, When The Grid Runner Is Nested With Other Identical Runners In A Package, Avoid Marring Of Visible Surfaces |
| 8,597,426 | Additives In Gypsum Panels And Adjusting Their Proportions | 12/3/2013 | Lee, Chris C. ; Li, Alfred C. ; Haszel, Richard J. ; Blackburn, David R. ; Wittbold, James R. ; Groza, Brent | A Panel Is Provided That Includes Stucco, Water And A Dispersant Component Having Dispersing Properties And Comprising A Comb-Branched Polymer With Polyether Side Chains, Naphthalene Sulfonate-Formaldehyde Condensate Or Melamine Sulfonate-Formaldehyde Condensate A Polycondensation Component Is Also Included In The Slurry That Includes Three Repeating Units A Method Of Making The Gypsum Panel Includes Combining Stucco, Water And A First Dosage Of A First Dispersant To Form A Slurry, The First A Second Dosage Of A Second Dispersant Is Added To The Slurry Properties Of The Gypsum Slurry Are Tested And It Is Formed Into A Product The Product Sets And Properties Of The Product Are Identified The First Dosage Or The Second Dosage Is Changed Based On The Properties Of The Slurry Or Product |
| 8,615,947 | Two-Piece Modular Yoke | 12/31/2013 | Underkofler, Abraham M. ; Gulbrandsen, Peder J. ; Paulsen, Mark R. | A Sheet Metal Yoke For Supporting A Pair Of Main Runners Of A Suspended Ceiling Grid In Parallel Alignment With A Relatively Narrow Spacing, The Yoke Having An Inverted U-Shape With A Horizontal Span And A Depending Leg Adjacent Each End Of The Span, A Lower End Of Each Leg Having A Tab Extending Towards The Other Leg, The Tab Being Proportioned To Fit In A Cross Runner Slot Of A Main Runner And Being Capable Of Vertically Supporting The Main Runner At A Desired Elevation |
| 8,615,948 | Seismic Perimeter Brace | 12/31/2013 | Underkofler, Abraham M. ; Gulbrandsen, Peder J. ; Paulsen, Mark R. ; Lehane, James J. ; Tedesco, Lee M | A Seismic Bracket For Supporting Ends Of Suspended Ceiling Grid Runners From A Wall Comprising A Stamped Sheet Metal Body, The Body Having A Horizontally Extending Portion And A Vertically Extending Portion, The Vertically Extending Portion, In Its Installed Position, Rising Above The Top Of A Standard Grid Runner A Distance At Least 1_ Times The Height Of Such Standard Grid Runner, The Vertically Extending Portion Having Two Sections Generally Coextensive In The Vertical Direction, A First Section Being Integral With The Horizontally Extending Portion And A Second Section Arranged To Be In A Vertical Plane That Intersects A Vertical Plane Occupied By The Horizontally Extending Portion, The Horizontally Extending Portion Being Arranged To Support A Grid Runner To Move Longitudinally A Limited Distance, The Second Section Of The Vertically Extending Portion Having An Aperture For Securing The Bracket To The Wall At A Location Substantially Above The Grid Tee |
| 8,617,718 | Mold-Resistant Gypsum Panel Paper | 12/31/2013 | Rohlf, Evan Vincent ; Deodhar, Subhash | A Mold Resistant Gypsum Panel Having Improved Mold- And Fungal-Resistance To The Gypsum Panel Facing Paper Is Provided Mold-Resistant Gypsum Panels Include A Gypsum Core Formed From A Gypsum Slurry That Has Voids As A Result Of Foaming Of The Gypsum Slurry A First Paper Is Located On One Side Of The Gypsum Core And A Second Paper Opposes The First Paper A First Paper Comprises At Least One Liner Ply And At Least One Filler Ply A Second Paper Also Comprises At Least One Liner Play And At Least One Filler Ply The First And Second Papers May Be Substantially The Same At Least One Of The First Paper And The Second Paper Also Includes A Biocide Having 75% Retention Of The Biocide Also Included In At Least One Of The First And Second Paper Are A Retention Aid And A Sizing Agent |
| 8,618,445 | Heating System | 12/31/2013 | Dubey, Ashish ; Mcdonald, David B. ; Ullett, James M. | A Heating System Which May Include A Bonding Membrane Having A Water Permeable Lamina, An Electrically Conductive Ink-Based Radiant Heater, And A First Adhesive Adapted To Adhere To Both The Conductive Ink-Based Radiant Heater And The Bonding Membrane The Heating System May Be Incorporated In A Floor Including A Substrate, The Heating System And A Decorative Floor Surface The Heating System May Also Be In The Form Of A Multilayer Panel Having A Bonding Membrane, An Electrically Conductive Ink-Based Heater Including A Plurality Of Electrically Resistive Strips Printed On A First Polymer Sheet Connected By Electrically Conductive Buses, And Electrical Conductors Extending From The Buses To At Least An Edge Of The Panel |
| 8,641,005 | Container Mixing Stand | 2/4/2014 | Cimaglio, Scott D. | A Container Mixing Stand Including A Base Plate, And A First Wall And A Second Wall Connected To The Base Plate, Where The First Wall Is Spaced From The Second Wall For Receiving A Container Between The First And Second Walls A Tensioning Mechanism Independent Of The First Wall And The Second Wall Is Positioned Adjacent To At Least One Of The First Wall And The Second Wall The Tensioning Mechanism Is Movable Between A Rest Position And A Tensioning Position, Where Moving The Tensioning Mechanism To The Tensioning Position Causes At Least One Of The First Wall And The Second Wall To Move Along The Base Plate Toward The Container And Secure The Container Between The First Wall And The Second Wall |
| 8,642,160 | Fiberglass Mesh Scrim Reinforced Cementitious Board System | 2/4/2014 | Dubey, Ashish ; Peng, Yanfei | A Cementitious Board System Which Is Reinforced On Its Opposed Surfaces By An Improved Glass Fiber Mesh Scrim With Thicker Yarn And Larger Mesh Openings To Provide A Cementitious Board With Improved Handling Properties While Retaining Tensile Strength And Long Term Durability The Fabric Is Constructed As A Mesh Of High Modulus Strands Of Bundled Glass Fibers Encapsulated By Alkali And Water Resistant Material, Eg A Thermoplastic Material The Composite Fabric Also Has Suitable Physical Characteristics For Embedment Within The Cement Matrix Of The Panels Or Boards Closely Adjacent The Opposed Faces Thereof The Fabric Provides A Board System With Long-Lasting, High Strength Tensile Reinforcement And Improved Handling Properties Regardless Of Their Spatial Orientation During Handling Included As Part Of The Invention Are Methods For Making The Reinforced Board |
| 8,642,346 | Tagged Joint Compound And Method Of Identification | 2/4/2014 | Immordino, Jr., Salvatore C. ; Link, Brett R. ; Miller, Charles J. ; Rosenthal, Guy L. ; Stevens, Richard B. ; Yeung, Lee K. | At Least One Of These Or Other Problems Is Reduced Using A Building Material That Is Uniquely Identifiable A Method Of Making An Identifiable Gypsum-Based Building Product Includes Selecting A Tagging Material Occurring Naturally In A Component Of The Building Material And Choosing A Carrier Substance Having A High Concentration Of The Tagging Material By Selecting An Amount Of The Carrier Substance And Adding It To The Building Material, A Building Product Having A Unique Product Characteristic Is Created In A Second Embodiment Of The Invention, A Second Tagging Material Is Combined With The First Tagging Material To Create A Unique Product In Yet Another Embodiment Of The Invention, A Supplemental Amount Of The Tagging Material Is Added To The Gypsum-Based Composition In Addition To The Carrier Substance Some Tagging Materials Are Useful In A Gypsum-Based Composition To Produce A Visual Confirmation Of The Presence Of The Tagging Material |
| 8,646,238 | Apparatus, System, And Method For Facilitating Use Of Thin Flexible Scrims In A Grid-Type Suspended Ceiling | 2/11/2014 | Gulbrandsen, Peder J. | Ceiling Panels For Use In A Grid-Type Suspended Ceiling (10) Each Comprise A Thin Flexible Scrim (40) That Is Of Insufficient Rigidity To Consistently Maintain A Substantially Planar Form When Installed In The Grid-Type Suspended Ceiling These Embodiments Also Present A Rigidizing And Engagement Member (60, 122, 161) That Attaches To Only A Relatively Minor Portion Of The Thin Flexible Scrim And That Is Configured And Arranged To Substantially Increase And Maintain Rigidity Of The Thin Flexible Scrim Such That The Thin Flexible Scrim Will Consistently Maintain A Substantially Planar Form When Installed In The Grid-Type Suspended Ceiling And That Will Also Serve To Engage At Least One Grid Runner Of The Grid-Type Suspended Ceiling To Thereby Maintain The Thin Flexible Scrim In An Installed Position Within The Grid-Type Suspended Ceiling |
| 8,657,949 | Decorative Effect Coating Compositions And Methods Of Making And Applying Same | 2/25/2014 | Negri, Robert H. ; Bury, Rafael | The Disclosure Is Generally Related To A Coating Composition, And More Particularly To A Decorative Effect Coating Composition Capable Of Producing A Multi-Colored And/Or Multi-Shaded Appearance In A Single Application |
| 8,661,757 | 30-Minute Residential Fire Protection Of Floors | 3/4/2014 | Miller, Gary F. | A Fire Protective Barrier For A Residential Floor And A Method Of Its Construction, The Construction Involving A Floor Supported On Lightweight Joists Of A Type Susceptible To Early Failure Once Exposed To A Fire Existing In The Space Below The Floor, An Array Of Elongated Steel Main Tees Suspended Below The Joists, The Tees Being Parallel And Spaced Apart By A Nominal Distance Of 2_, The Tees Having An Upper Hollow Reinforcing Bulb, A Central Vertical Web Extending Downwardly From The Bulb And A Horizontal Flange Extending Laterally From Both Sides Of The Web, Drywall Panels Carried On Upper Faces Of The Flanges Of Adjacent Pairs Of Tees, The Drywall Panels Having A Width Of Slightly Less Than The Center-To-Center Distance Of The Tees, A Majority Of The Panels Having Lengths Of 8_ Or More |
| 8,663,382 | High Strength Phosphate-Based Cement Having Low Alkalinity | 3/4/2014 | Dubey, Ashish | A Mixture For Making A High Strength Phosphate Cement Includes Monopotassium Phosphate, A Group IIA Metal Oxide In Amounts Of About 20 To About 100 Parts Per 100 Parts Of The Monopotassium Phosphate And Monocalcium Orthophosphate In Amounts Of From About 3 To About 30 Parts Per 100 Parts Of The Monopotassium Phosphate Products Made From The Phosphate Cement Have A Ph Of Less Than About 9 And The Product Develops A Compressive Strength Greater Than 2000 Psi In 24 Hours |
| 8,667,827 | Grid Runner | 3/11/2014 | Lehane, Jr., James J. ; Gulbrandsen, Peder J. ; Hammond, John L. ; Underkofler, Abraham M. ; Paulsen, Mark R. | A Roll-Formed Grid Runner Comprising A Sheet Metal Strip Folded Into An Upper Hollow Single Wall Reinforcing Bulb, A Double Wall Web Below The Bulb, A Channel Extending Laterally From Both Sides Of A Lower End Of The Web To A Bend And Upwardly From The Bend To A Panel Supporting Elevation, The Bend On Each Side Of The Web Existing At A Longitudinally Extending Score Line Where A Thickness Of The Strip Is Locally Reduced |
| 8,668,087 | Two-Phase Packaging Of Ready Mix Joint Compound | 3/11/2014 | Hargrove, Pamela L. ; Stevens, Richard B. | A Wallboard Joint Compound Package Is Provided, Including A Container Defining An Interior Space And Configured For Being Sealed, A First Component Of Ready-Mixed Joint Compound Being Disposed In The Interior Space To A Level Which Leaves A Pre-Determined Head Space, And An Upper Surface Of The Component Is Defined In The Container A Second Component Is Provided, Including Water, And Is Placed In The Interior Space Upon The Upper Surface, Such That The First And Second Components Remain Substantially Distinct Prior To Opening Of The Container |
| 8,673,071 | Joint Compound Using Predispersed Dedusting Agents | 3/18/2014 | Immordino, Jr., Salvatore C. ; Schenck, Ronald E. ; Miller, Charles | This Method Relates To Making A Joint Compound That Includes Predispersing A Dedusting Agent In Water To Make A Predispersed Dedusting Agent Dry Components, Including At Least One Filler, Are Combined To Make A Dry Mixture Process Water Is Pumped Into A Vessel And The Predispersed Dedusting Agent Is Introduced To The Vessel The Dry Mixture Is Then Added To The Vessel And All Components Are Blended To Make A Homogeneous Product |
| 8,684,134 | Gypsum-Panel Acoustical Monolithic Ceiling | 4/1/2014 | Dugan, Erin ; Miklosz, Mark ; Bury, Rafael ; Yeung, Lee K. ; Frank, William A. | An Acoustical Panel For Forming A Monolithic Ceiling Or Wall, The Panel Extending Across A Rectangular Area, And Having A Core Made Primarily Of Gypsum, The Core Being Essentially Coextensive With The Panel Area Such That It Has Two Opposed Sides, Each Of An Area Substantially Equal To The Area Of The Panel, The Core Having A Multitude Of Perforations Extending Generally Between Its Sides, The Perforations Being Distributed Substantially Uniformly Across The Full Area Of The Core And Being Open At Both Sides Of The Core, The Face Side Of The Core Being Covered By A Porous Layer, The Perforations Being Optionally Restricted At A Rear Side Of The Core, The Porous Layer At The Face Side Of The Core Being Suitable For Adherence Of Drywall Joint Compound And A Water-Based Non-Blocking Paint |
| 8,697,588 | Mineral Wool From Recyclable Materials | 4/15/2014 | Brown, Martin W. | Provided Is A Mineral Wool That Includes Recycled Material The Mineral Wool Is Characterized By An Acid To Base Ratio Within A Specified Range Also Provided Is A Method Of Manufacturing The Mineral Wool That Includes Selection Of Post-Consumer Or Post-Industrial Recyclable Materials Application Of The Mineral Wool To Products Such As An Acoustical Ceiling Panel Is Also Provided |
| 8,701,365 | Impact Resistant Plastic Corner Bead | 4/22/2014 | Rosenthal, Guy L. ; Rosso, Aaron C. ; Koval, Ronald J. | A Corner Bead For Finishing A Wallboard Corner Joint Is Provided, Including A Plastic Body Including A First Flange And A Second Flange, Each Flange Having A Rib Edge And An Opposite Free Edge The Respective Rib Edges Are Joined To Form A Corner Rib Defining An Angle A Web Of Face Paper Covers At Least A Portion Of The Body |
| 8,702,881 | Method Of Making Lightweight, Reduced Density Fire Rated Gypsum Panels | 4/22/2014 | Yu, Qiang ; Veeramasuneni, Srinivas D. ; Song, Weixin D. ; Luan, Wenqi | A Method Of Preparing A Reduced Weight, Reduced Density Gypsum Panel That Includes High Expansion Vermiculite With Fire Resistance That Meet Or Exceed One Or More Industry Standard Fire Tests |
| 8,734,613 | Glass Fiber Enhanced Mineral Wool Based Acoustical Tile | 5/27/2014 | Frank, William A. ; Rosenstiel, Terry | A Wet Laid Basemat For An Acoustical Ceiling Tile Comprising On A Dry Weight Basis, 50% Or More Mineral Wool Fiber, Including Shot, Less Than 9% Binder, And Between 5 And 20% Chopped Strand Glass Fiber, And, Optionally, Minor Amounts Of Other Constituents, Whereby The Chopped Strand Glass Fibers Serve To Promote And/Or Maintain Voids In The Mat Such That The Dry Basemat Has A Density Of Between About 7_ To About 10_ Lbs Per Cubic Foot And An NRC Substantially Greater Than 055 |
| 8,747,534 | Antimicrobial Size Emulsion And Gypsum Panel Made Therewith | 6/10/2014 | Rohlf, Evan V. ; Scalf, Mark B. | Disclosed Is An Emulsion Of An Internal Paper Size And A Biocidal Emulsifying Agent, Such As A Cationic Non-Starchy Quaternary Ammonium Compounds, That Is Introduced Into A Paper-Making Furnish To Produce An Antimicrobial Paper The Antimicrobial Paper Is Useful As Facing For Gypsum Panels A Method Of Making The Paper Includes Emulsifying The Internal Size With A Biocide Before Introducing The Size To The Paper Furnish A Method Of Making A Microbial Growth Resistant Gypsum Panel That Incorporates The Antimicrobial Paper Is Also Disclosed |
| 8,763,336 | Attachment Clip For Ceiling Grid Systems | 7/1/2014 | Gulbrandsen, Peder ; Miklosz, Mark ; Jackson, Nicholas ; Oshgan, Stephen ; Wascow, Joe ; Bruce, Jeremy | A Clip Having A First Leg For Attaching To A Trim Strip And A Second Leg For Attaching To A Grid Runner, The First Leg Having A Backer Plate Attached With A Screw Through A Slot, A Head Of The Screw On A Side Of The First Leg Facing The Second Leg, The Backer Plate On The Other Side Of The First Leg, An Upper Edge Of The First Leg In A Downwardly Facing Groove On A Backside Of The Trim Strip, The Backer Plate Fitting Between A Depending Free Edge Of The Upper Groove And An Upstanding Edge Of A Lower Upwardly Facing Groove When The Screw Is Up In The Slot, And Being Received In The Lower Groove When The Screw Is Down In The Slot And Clamping Between The Upstanding Edge And A Rear Face Of The Trim Strip When The Screw Is Tightened |
| 8,770,139 | Apparatus For Feeding Cementitious Slurry Onto A Moving Web | 7/8/2014 | Frank, William A. ; Blyskis, Alfredas | An Apparatus And Process For Depositing Slurry Upon A Moving Forming Web The Apparatus Includes A Pivotally Mounted Headbox For Depositing Slurry From The Inner Bottom Surface Of The Headbox Down An Inclined Spillway As A Continuous Curtain Onto A Moving Web The Headbox Is Mounted Transverse To The Direction Of Travel Of The Moving Web The Headbox Also Has Vertical Edge Boards, Including A Headbox Back Edge Board And Two Opposed Headbox Side Edgeboards, On Three Respective Sides Of The Headbox To Prevent Slurry From Spilling Over The Sides And Back Of The Headbox The Headbox Is Supplied With Slurry From A Slurry Mixer By A Feed Line Mounted On A Reciprocating Trolley Which Moves, Transverse To The Direction Of Travel Of The Moving Web, Back And Forth Along The Length Of The Headbox |
| 8,770,345 | Gypsum-Panel Acoustical Monolithic Ceiling | 7/8/2014 | Dugan, Erin ; Miklosz, Mark | An Acoustical Panel For Forming A Monolithic Ceiling Or Wall, The Panel Extending Across A Rectangular Area, And Having A Core Made Primarily Of Gypsum, The Core Being Essentially Coextensive With The Panel Area Such That It Has Two Opposed Sides, Each Of An Area Substantially Equal To The Area Of The Panel, The Core Having A Multitude Of Perforations Extending Generally Between Its Sides, The Perforations Being Distributed Substantially Uniformly Across The Full Area Of The Core And Being Open At Both Sides Of The Core, The Face Side Of The Core Being Covered By A Porous Layer, The Perforations Being Optionally Restricted At A Rear Side Of The Core, The Porous Layer At The Face Side Of The Core Being Suitable For Adherence Of Drywall Joint Compound And A Water-Based Non-Blocking Paint |
| 8,782,985 | Splice Clip For Ceiling Grid Systems | 7/22/2014 | Gulbrandsen, Peder ; Miklosz, Mark ; Oshgan, Stephen ; Wascow, Joe ; Jackson, Nicholas | A Splice Plate For Joining And Aligning Extruded Trim Strips Used In Suspended Ceiling Islands And Fascias Of The Type Having A Pair Of Opposed Flanged Channels On Its Rear Face, The Splice Plate Having Upper And Lower Flanges Proportioned To Slide Into The Pair Of Channels And A Pair Of Clamping Elements, Each Of The Clamping Elements Being Disposed In A Rearwardly Horizontally Spaced Relation To A Respective One Of Said Splice Plate Flanges, A Machine Screw Associated With Each Clamping Element And Arranged When Turned To Draw The Respective Clamping Element Forcibly Towards An Associated Plate Flange To Thereby Clamp An Intervening Portion Of A Trim Channel Flange, Said Plate Being Sufficiently Long To Span Between A Pair Of End Abutted Trim Strips |
| 8,795,429 | Method For In-Situ Manufacture Of A Lightweight Fly Ash Based Aggregate | 8/5/2014 | Perez-Pena, Marianela | A Method Of Making A Rapid Setting Lightweight Homogeneous Foamed Fly Ash Based Cementitious Aggregate Composition With Improved Compressive Strength For Products Such As Panels Is Disclosed The Method Mixes Fly Ash, Alkali Metal Salt Of Citric Acid, Foaming Agent For Entraining Air, Optional Foam Stabilizing Agent, A Calcium Sulfate Such As Stucco Or Gypsum, And Water Compositions Are Also Disclosed Which Include Mixtures Of Fly Ash, Particularly Class C Fly Ash Alone Or In Mixtures With Class F Fly Ash, Alkali Metal Salts Of Citric Acid, Foaming Agents, A Calcium Sulfate Such As Calcium Sulfate Dihydrate Or Hemihydrate And An Optional Portland Cement |
| 8,801,852 | Additives In Gypsum Slurries And Adjusting Their Proportions | 8/12/2014 | Lee, Chris C. ; Li, Alfred C. ; Haszel, Richard J. ; Blackburn, David R. ; Wittbold, James R. ; Groza, Brent | A Gypsum Slurry Is Provided That Includes Calcium Sulfate Hemihydrate; Water; A Dispersant Component Comprising At Least One Of The Following A Comb-Branched Polymer With Polyether Side Chains, Naphthalene Sulfonate-Formaldehyde Condensate Or Melamine Sulfonate-Formaldehyde Condensate; A Foaming Agent; And A Polycondensation Component With Three Polycondensation Repeating Units Also Provided Is A Method For Making A Gypsum Slurry With A Foaming Agent In Which The Ratio Between The Dispersant Component And The Polycondensation Component Is Adjusted To Control For The Size Of Foam Bubbles In The Gypsum Slurry Gypsum Products Made From The Gypsum Slurry Are Provided And Methods For Making The Products Are Provided As Well |
| 8,801,902 | Water Reduction By Modulating Vacuum | 8/12/2014 | Brown, Martin W. ; Frank, William A. | A System And A Method For Dewatering An Acoustical Tile Basemat Comprising A Continuously Traveling Wire, A Device For Depositing A Dilute Water Slurry Of Solids Including Fiber And Binder On The Wire, A Vacuum Box Below The Wire For Separating Water From The Solids Deposited On The Wire To Form A Basemat, A Vacuum Source, And A Valve For Cyclically Connecting The Vacuum Source To The Vacuum Box At A Cyclic Rate That Limits Vacuum Exposure To A Length Of The Basemat Newly Arriving At The Vacuum Box To Less Than Four Inches Per Cycle |
| 8,813,457 | Grid Runner To Perimeter Trim Clip | 8/26/2014 | Underkofler, Abraham M. ; Paulsen, Mark R. ; Gulbrandsen, Peder J. | A Clip For Mounting An Elongated Trim Strip On Ends Of Ceiling Grid Runners, Having A Right Angle Configuration With Two Intersecting Legs, One Leg Adapted To Laterally Abut An End Of A Grid Runner And The Other Being Adapted To Engage The Trim Strip, Said Other Leg Having Oppositely Extending Upper And Lower Grips For Reception Into Upper And Lower Opposing Channels Of The Trim Strip, The Grips Being Relatively Moveable, And A Toggle Arrangement For Moving Said Grips Away From One Another, When Retracted, The Grips Being Capable Of Passing Between The Opposed Channels, The Toggle Arrangement Selectively Maintaining Said Grips In An Extended Position To Frictionally Lock Onto The Opposed Channels Of The Trim Strip |
| 8,820,026 | Clip For Perimeter Trim | 9/2/2014 | Underkofler, Abraham M. ; Gulbrandsen, Peder J. ; Paulsen, Mark R. | A Single Piece Sheet Metal Clip Including A Trim Engaging Part And A Mounting Part Extending Or Extendable From The Trim Engaging Part At A Right Angle, The Trim Engaging Part Having A Limited Height When The Clip Is Tilted From A Vertical Portion And A Height Greater Than The Limited Height When Upright Whereby The Trim Engaging Part May Be Inserted Between Opposed Channels On A Rear Side Of A Trim Strip And Upper And Lower Edges Are Trapped In A Respective Channel When Rotated From The Tilted Position To An Upright Position, The Trim Engaging Part Having An Integral Element Resiliently Deflected In A Channel When The Clip Is Turned Upright, Said Resilient Element Releasably Locking The Clip Against A Reversal Of Said Movement And Thereby Maintaining The Trim Engaging Part Trapped In Said Channels |
| 8,822,566 | Non-Homogeneous Ready-Mix Joint Compound | 9/2/2014 | Hargrove, Pamela L. ; Stevens, Richard B. | A Wallboard Joint Compound Includes A Base Joint Compound Having A Homogeneous, Paste-Like Blend Of Water And At Least One Of A Filler, A Binder, A Thickener, A Suspending Agent, A Biocide, A Preservative, A Mineral Filler And Expanded Perlite; And An Additive Discretely Added To The Base Joint Compound To Be Available For Use Once Mixed Into The Base Joint Compound Just Prior To Application Of The Wallboard Joint Compound By A User |
| 8,835,546 | Finishing Glaze For Decorative Texturing Medium | 9/16/2014 | Li, Donghong | A Glaze Composition For Application To A Substrate Includes A Dry Powder Latex, A Liquid Latex Emulsion, A Coalescing Solvent, A Wax, A Thickener And Water The Glaze Is Rewettable During Application And Is Extremely Durable After Fully Dry Optionally, The Glaze Also Includes One Or More Of A Surfactant, A Dispersant, One Or More Pigments, A Dispersant, A Defoamer, A Slow Drying Solvent, And A Slow Drying Hydrocarbon Resin |
| 8,869,484 | Flexible Drywall Grid Member For Framing Drywall Structures | 10/28/2014 | Gulbrandsen, Peder ; Underkofler, Abraham M. ; Paulsen, Mark R. | A Curvable Grid Tee For Suspending Drywall Capable Of Being Configured Vertically Into Convex Or Concave Shapes Comprising A Series Of Identical Web Segments Joined End-To-End, The Segments Being Formed Of Sheet Metal Into A Tee Shaped Cross Section, The Sheet Metal Of A Segment Being Folded Such That Each Segment Has A Vertical Double Layer Stem With The Stem Layers Joined At A Common Fold At Upper Edges Thereof, The Sheet Metal At Lower Edges Of Each Layer Of The Stem Being Bent Outwardly To Form A Flange, A Junction Between Adjacent Segments Permitting Such Adjacent Segments To Be Angularly Displaced Relative To One Another In A Vertical Plane Such That The Flanges Are Capable Of Supporting A Drywall Panel In A Curved Plane |
| 8,876,069 | Container Mixing Stand | 11/4/2014 | Cimaglio, Scott D. | A Container Mixing Stand For Securing A Container For Mixing Includes A Base Plate, A First Holding Member Connected To The Base Plate And A Second Holding Member Movably Connected To The Base Plate And Spaced From The First Holding Member For Receiving A Container Between The First And Second Holding Members The Stand Also Includes A First Pulley Assembly Having A Lever Arm Movable Between A Rest Position And A Tensioning Position, And A Second Pulley Assembly Coupled With Both The Second Holding Member And The First Pulley Assembly Movement Of The First Pulley Assembly From The Rest Position To The Tensioning Position Causes The Second Pulley Assembly To Move The Second Holding Member Into Contact With The Container For Securing The Container In Position During Mixing |
| 8,887,467 | Ceiling Panel Wire Anchor | 11/18/2014 | Underkofler, Abraham M. ; Gulbrandsen, Peder J. ; Paulsen, Mark R. | A Sheet Metal Fastener And Method Of Use With A Low Density Porous Ceiling Panel, The Fastener Comprising A Plurality Of Blades Adapted To Be Manually Driven Into A Backside Of A Low Density Fibrous Ceiling Panel Core, Each Blade Being Arranged To Be Pivoted About A Horizontal Axis In A Direction Opposite Another One Of The Blades While Embedded In The Core To Fix The Fastener To The Panel And An Upstanding Structure Attached To Said Blades Adapted To Project Upwardly From A Rear Side Of The Panel And Having An Aperture For Receiving A Suspension Wire |
| 8,893,449 | Grid Runner Support Brace | 11/25/2014 | Underkofler, Abraham M. ; Gulbrandsen, Peder J. ; Paulsen, Mark R. | A Suspended Ceiling Grid Assembly Including Parallel Spaced Main Runners And Pairs Of Cross Runners On Opposite Sides Of A Main Runner, The Main Runners Having Vertical Slots Spaced Along Their Lengths, The Cross Runners Having End Connectors Mutually Inter-Engaged In A Common Main Runner Slot, A Brace Stabilizing The Pair Of Cross Runners Against Relative Hinge Action In A Vertical Plane, The Brace Being A Thin Metal Body Having A Cross Section Complimentary To A Cross Section Of The Cross Runners, The Brace Abutting Sides Of The Cross Runners And Being Rigidly Attached Thereto |
| 8,894,811 | Air Dispersion Of Mineral Fibers In Ceiling Tile Manufacture | 11/25/2014 | Brown, Martin W. | A Method Of Forming A Dilute Water Slurry For Water Felting A Basemat For An Acoustical Ceiling Tile Comprising Delivering A Bale Of Compressed Mineral Wool With A Density Of At Least 8 Lbs Per Cubic Foot At An Unbaling Station, Releasing A Binding Holding The Bale In Compression, Mechanically Separating The Fibers Of A Mineral Wool Bale With Mechanical Instrumentalities Arranged To Disperse The Fibers To A Generally Uniform Density Of Less Than 2 Lbs Per Cubic Foot Prior To Passage Of The Fibers Through The Tank Inlet, And Causing The Separated Mineral Fibers To Pass Into The Mixing Tank For Contact With Water Suspended Binder |
| 8,898,976 | Wallboard Corner Finishing Strip | 12/2/2014 | Rosenthal, Guy ; Moyer, Kevin ; Carey, James | A Corner Bead Strip Is Provided For Finishing A Wallboard Corner Joint, Includes A Flexible Plastic Body Having A First Flange And A Second Flange, Each Flange With A Corner Edge And An Opposite Free Edge The Corner Edges Are Joined By A Central Flex Zone Formed By A Plastic Composition Distinct From A Plastic Composition Used For Forming The Flanges A Web Of Paper Covers A Surface Of The Body |
| 8,898,985 | Ceiling Panel System | 12/2/2014 | Lehane, Jr., James J. | A Ceiling Panel System Includes A Plurality Of Grid Members That Are Operable To Form A Grid Suspendable From A Ceiling, The Grid Having Grid Member Intersections; And A Plurality Of Ceiling Panels, Each Ceiling Panel Including A Planar Surface And A Plurality Of Upturned Edges Arranged About The Periphery Of The Planar Surface The Upturned Edges Include A Catch Operable To Attach The Panels To The Face Of The Grid Intermediately To The Intersections To Form A Ceiling Surface |
| 8,898,986 | Hanger Bar | 12/2/2014 | Underkofler, Abraham M. ; Gulbrandsen, Peder J. ; Paulsen, Mark R. | A Runner Hanger Comprising A Metal Strip Having A Plurality Of Spaced Upper Holes, A Lower Portion Including A Lower Edge Interrupted By A Series Of Regularly Spaced Notches, The Notches Being Configured To Receive A Hollow Reinforcing Bulb Of A Grid Runner Extending Transversely To The Hanger, The Notch Having A Pair Of Longitudinally Spaced Ledges Configured To Support The Bottom Sides Of A Reinforcing Bulb, The Notches Having A Bendable Tab Carrying One Of The Ledges, The Tabs Being Precision Machine Bent At An Angle Relative To A Plane Of The Lower Portion That Allows A Grid Runner Reinforcing Bulb To Be Inserted When Tilted In The Associated Notch And Prevents The Bulb From Falling Out Of The Notch When The Runner Is Upright |
| 8,898,994 | Method For Sealing Wood Subfloors | 12/2/2014 | Socha, Dennis Albert ; Kaligian, Raymond A. | A Method Of Applying A Flooring System On A Wood Subfloor, Including Providing A Sealer For Direct Application To The Wood Subfloor; Applying The Sealer To The Wood Subfloor; And Allowing The Sealer To Dry And Cure, Forming A Sealed And Stable Wood Subfloor |
| 8,925,677 | Gypsum-Panel Acoustical Monolithic Ceiling | 1/6/2015 | Dugan, Erin ; Miklosz, Mark ; Bury, Rafael ; Yeung, Lee K. ; Frank, William A. ; Gulbrandsen, Peder J. | An Acoustical Panel For Forming A Monolithic Ceiling Or Wall, The Panel Extending Across A Rectangular Area, And Having A Core Made Primarily Of Gypsum, The Core Being Essentially Coextensive With The Panel Area Such That It Has Two Opposed Sides, Each Of An Area Substantially Equal To The Area Of The Panel, The Core Having A Multitude Of Perforations Extending Generally Between Its Sides, The Perforations Being Distributed Substantially Uniformly Across The Full Area Of The Core And Being Open At Both Sides Of The Core, The Face Side Of The Core Being Covered By A Porous Layer, The Perforations Being Optionally Restricted At A Rear Side Of The Core, The Porous Layer At The Face Side Of The Core Being Suitable For Adherence Of Drywall Joint Compound And A Water-Based Non-Blocking Paint |
| 8,931,230 | Joint Compound, Wall Assembly, And Methods And Products Related Thereto | 1/13/2015 | Negri, Robert H. ; Miklosz, Mark | Disclosed Are Aspects Of Board Finishing Systems For Example, In Various Aspects, Disclosed Are Joint Compound Compositions, Wall Assemblies, Methods Of Treating Walls, And Products Related To Any Of The Foregoing, Including Reinforcement Trim, Eg, For Protecting Corners Where Boards Meet, Fasteners, And Tape The Joint Compound Preferably Is A Drying Type Composition With Reduced Shrinkage Property, And Includes Binder And Hollow Spheres, Resulting In An Ultra Lightweight Formulation In Some Embodiments The Joint Compound Composition Can Be Applied In A One-Coat Treatment In Preferred Embodiments Other Aspects Of Board Finishing System Accommodate Such A One-Coat Treatment To Thusly Allow A User To Manipulate The Compound Closer To The Plane Of Board As Compared With Conventional Formulations Joint Tape And Reinforcement Trim Can Include Non-Swelling Synthetic Paper Facing Material In Some Embodiments |
| 8,932,678 | Composition Comprising Superabsorbent Polymer | 1/13/2015 | Grussing, Jeffrey F. | Disclosed Is A Composition (Eg, A Texture Composition) Comprising, Consisting Of, Or Consisting Essentially Of Calcium Carbonate And Superabsorbent Polymer That Can Absorb At Least About 50 Times Its Mass And Having A Particle Size Of About 250 Microns Or Less, Wherein The Composition Is Substantially Free Of A Setting-Type Cementitious Material In Some Embodiments, Cellulosic Thickener Content Is Reduced Or Eliminated From The Texture Composition Also Disclosed Is A Method Of Finishing A Substrate Comprising Applying To The Surface A Wet Composition Comprising, Consisting Of, Or Consisting Essentially Of Calcium Carbonate And Superabsorbent Polymer That Can Absorb At Least About 50 Times Its Mass And Having A Particle Size Of About 250 Microns Or Less, Wherein The Composition Is Substantially Free Of A Setting-Type Cementitious Material, And Drying The Composition On The Substrate |
| 8,945,295 | Building Materials And Methods Of Manufacture | 2/3/2015 | Brown, Martin W. | An Article Of Manufacture Comprising A Building Panel Such As Ceiling Tile For Example Includes, In Addition To Any By-Product Perlite Fines, Additional Perlite Fines In An Amount Sufficient To Improve The Fire Resistance Of The Building Panel Over The Fire Resistance Of The Building Panel Without The Additional Perlite Fines In One Aspect, The Additional Perlite Fines Can Comprise At Least Approximately 35% Perlite Fines By Weight In Another Aspect, The Additional Perlite Fines Can Have An Average Diameter Of Approximately 23 Microns Or Less Methods Of Manufacture Related To The Building Panel Also Are Disclosed |
| 8,955,272 | Accessible Stabilizer Bar | 2/17/2015 | Underkofler, Abraham M. ; Gulbrandsen, Peder J. ; Paulsen, Mark R. | An Elongated Stabilizer Bar For Maintaining A Pair Of Grid Runners In Parallel Upright Positions To Support A Panel On Respective Grid Runner Support Surfaces, The Stabilizer Bar Having A Horizontal Leg And A Vertical Leg, The Horizontal Leg Having Self-Penetrating Tabs Arranged To Pierce And Thereby Grip A Core Of The Panel To Fix The Stabilizer Bar To The Panel, A Vertical Leg Having A Vertical Slot At Each End, The Slot Having An Open Bottom, The Slot Having A Horizontal Width Adapted To Receive And Confine An Upper Reinforcing Bulb Of A Respective One Of The Pair Of Grid Runners To Thereby Restrain The Respective Grid Runner Against Excessive Bowing And Twisting Deflection |
| 8,955,273 | Channel Cross Member | 2/17/2015 | Lehane, Jr., James J. ; Gulbrandsen, Peder J. ; Paulsen, Mark R. ; Underkofler, Abraham M. | A Short Cross Member For A Narrow Utility Channel Formed Of Malleable Sheet Metal And Having A Vertical Double Ply Web And A Horizontal Flange Symmetrically Disposed On Both Sides Of A Lower Edge Of The Web, Integral End Connectors Formed On Each End Of The Cross Member From Sheet Material Contiguous With The Web, The Integral End Connectors Being Arranged To Support The Flange In Coplanar Relation With Flanges Of The Channel, The End Connectors And The Web Being Weakened At A Predetermined Vertical Line Whereby The Cross Member Can Be Assembled In A Narrow Channel By Bending At The Associated Line Of Weakness To Shorten The Effective Overall Length Of The Cross Member |
| 8,961,675 | Acoustic Building Material Employing Chitosan | 2/24/2015 | Albarran, Enrique L. | An Acoustic Building Material And Method For Manufacture Incorporates Chitosan In An Amount Sufficient To Achieve Acceptable Physical Properties With A Reduction In Binder And To Allow The Postindustrial/Postconsumer Content Of The Building Material To Be Increased The Chitosan Also Enhances The Dewatering Of The Building Material |
| 8,974,597 | Gypsum-Containing Product | 3/10/2015 | Yu, Qiang ; Sucech, Steven W. ; Groza, Brent E. ; Mlinac, Raymond J. ; Jones, Frederick T. ; Henkels, Paul J. | The Invention Provides A Set Gypsum-Containing Product Having Increased Resistance To Permanent Deformation And A Method For Preparing It Comprising Forming A Mixture Of A Calcium Sulfate Material, Water, And An Appropriate Amount Of One Or More Enhancing Materials Chosen From Condensed Phosphoric Acids, Each Of Which Comprises 2 Or More Phosphoric Acid Units; And Salts Or Ions Of Condensed Phosphates, Each Of Which Comprises 2 Or More Phosphate Units The Mixture Is Then Maintained Under Conditions Sufficient For The Calcium Sulfate Material To Form A Set Gypsum Material |
| 8,974,925 | Gypsum Board | 3/10/2015 | Cao, Bangji ; Song, Weixin D. ; Chan, Cesar ; Leckie, Scott | Described Herein Is A Composite Board And A Method Of Producing A Composite Board, The Board Having Increased Fire Endurance The Board Comprises A Sheet Having A Thickness Greater Than About 0014 Inches, And A Thermal Conductivity Of About 01 W/(Mk) Or Less The Composite Board Can Be Part Of A Wall Assembly Comprising Two Boards Defining An Interior Cavity, The Sheet Facing The Interior Cavity |
| 8,975,321 | Compositions Suitable For Use As Joint Compounds And Related Methods | 3/10/2015 | Cimaglio, Scott D. ; Byers, Charles D. ; Miller, Charles J. | The Invention Provides A Composition Useful As A Joint Compound Comprising Water, A Filler Comprising One Or More Of Calcium Carbonate, Calcium Sulfate Dihydrate Or Calcium Sulfate Hemihydrate, A Binder And/Or A Biocide, Wherein The Composition After Curing Is Formaldehyde-Free |
| 8,991,120 | Two-Part Channel Cross Member | 3/31/2015 | Lehane, Jr., James J. ; Gulbrandsen, Peder J. ; Paulsen, Mark R. ; Underkofler, Abraham M. | A Cross Member For A Narrow Channel In A Suspended Ceiling Grid Comprising A Carrier And A Cover, The Carrier Having A Web And A Planar Flange On A Lower Edge Of The Web, End Connectors At Opposite Ends Of The Carrier Web, The Cover Having A Three-Dimensional Cross-Section With An Overall Width Generally Equal To The Width Of The Carrier Flange And Integral Bendable Tabs, The Tabs Being Adjacent The Ends Of The Cover And Short In Comparison To A Length Of The Cover, The Tabs Being Constructed To Be Manually Folded Over The Flange Of The Carrier To Lock The Cover To The Carrier |
| 8,997,434 | Method Of Installing A Flooring System Utilizing Gypsum Underlayments | 4/7/2015 | Socha, Dennis Albert ; Ellicson, John | A Method Of Installing A Flooring System Including Pouring A Gypsum Underlayment On A Substrate, Allowing The Underlayment To Set, But Not Dry A Water-Borne Epoxy Sealer Is Provided And Applied To The Wet, But Set, Underlayment |
| 9,021,759 | Serpentine Insert For Open Web Grid | 5/5/2015 | Lehane, Jr., James J. ; Gulbrandsen, Peder J. | A Grid Runner And Method Of Its Manufacture That Saves Material Content With Use Of A Serpentine Sheet Metal Web Configured To Be Essentially Scrapless And That Results In A Parallel Chord Truss-Like Construction With Open Spaces Between An Upper Reinforcing Bulb And A Lower Flange |
| 9,022,206 | Roller Cleaner | 5/5/2015 | Schenck, Ronald Edward ; Doty, William James ; Henry, Anthony A. | A Cleaning Device Is Provided For Removing Debris From Rotating Conveyor Rollers, And Includes A Housing Constructed And Arranged For Insertion Between Two Adjacent Rotating Rollers, The Housing Having A First Set Of Cleaning Wheels At A First Housing End Associated With A First Of The Conveyor Rollers, And A Second Set Of Cleaning Wheels Located On An Opposite End Of The Housing And Associated With A Second Of The Conveyor Rollers At Least One Of The Cleaning Wheels Is Reciprocable Relative To The Housing Between A Retracted Position Permitting Insertion Of The Housing Between The Rollers, And A Extended Position Extending The Reciprocating Wheel Towards The Adjacent Roller For Limiting Lateral Movement Of The Housing Between The Rollers Upon Movement Of The Housing Between The Rollers In A Direction Parallel To A Longitudinal Axis Of The Rollers, The Cleaning Wheels Operationally Engage And Remove Residue Collected On The Rollers |
| 9,023,143 | Acoustic Building Material Employing Chitosan | 5/5/2015 | Albarran, Enrique L. | A Cast Ceiling Tile And Method For Manufacture Incorporates Chitosan In An Amount Sufficient To Provide Improved Strength |
| 9,040,153 | Method Of Reducing Ceiling Tile Sag And Product Thereof | 5/26/2015 | Yeung, Lee K. | Sag In Ceiling Tiles Is Reduced By The Present Coated Ceiling Tile And Method Which Decreases Sag In The Coated Ceiling Tiles Calcined Gypsum And Water Are Combined To Form A Coating Which Is Applied To The Back Side Of A Base Ceiling Tile In A Thin Layer Of About 100 Micrometer To About 1000 Micrometers The Coating Optionally Includes A Set Time Modifier This Method Makes A Coated Ceiling Tile From A Base Ceiling Tile Having A Front Side And A Back Side Opposing The Front Side The Coating Is Applied To The Back Side Of The Base Ceiling Tile, The Coating Comprising An Interlocking Matrix Of Calcium Sulfate Dihydrate Optionally, Remnants Of The Set Time Modifier Are Present Within Interstices In The Gypsum Matrix The Remnants Of The Set Time Molecule Include Ions, Molecules, Particles Or Combinations Thereof |
| 9,062,447 | Connector Clip | 6/23/2015 | Lehane, Jr., James J. | An End Clip For Joining Runners Of Suspended Ceilings By Coupling With An Identical Clip, The Clip Being Stamped From Sheet Metal Stock With Lead And Trailing Ends, A Lateral Projection And A Projection Receiving Area Behind The Lead End, The Clip Being Arranged Such That When An Identical Clip Oriented In The Opposite Direction Of The Clip And Caused To Laterally Overlap The Clip The Projection Of The Clip Is Locked In The Receiving Area Of The Identical Clip And, Vice Versa, At Least One Of The Projection And Projection Receiving Area Having A Rearward Facing Sheared Edge Forming An Acute Angle With The Clip Plane Resulting From Being Sheared With Tooling Having A Clearance Between Tooling Substantially Greater Than 10% Of The Thickness Of The Sheet From Which The Clip Is Stamped |
| 9,067,383 | Flexible And Rollable Cementitious Membrane And Method Of Manufacturing It | 6/30/2015 | Dubey, Ashish ; Groza, Pete ; Mcdonald, David Bruce | In A Preferred Embodiment, A Membrane For Use As An Underlayment Includes A Basemat, Which Includes At Least Three Plies, A Ply Of A Meltblown Polymer Sandwiched Between Two Plies Of Spunbond Polymer; And A Flexible Coating Applied To The Basemat, The Coating Having A Cementitious Hydraulic Component, A Polymer Comprising A Water-Soluble, Film-Forming Polymer; And Water The Finished Membrane Is Flexible Another Embodiment For An Underlayment For Use Underneath Ceramic Tiles Includes A Basemat And A Coating Of A Set Hydraulic Component Less Than __ Inches Thick Method Of Making The Flexible Membrane Includes Assembling Components Including A Hydraulic Component, A Water-Soluble, Film-Forming Polymer And Water, Then Mixing Them To Form A Coating A Basemat Is Provided Onto Which The Coating Is Applied Over A Flexible Surface Or No Surface After Coating At Least One Face Of The Basemat, The Coating Is Dried To Form The Membrane |
| 9,090,506 | Method For In-Situ Manufacture Of A Lightweight Fly Ash Based Aggregate | 7/28/2015 | Perez-Pena, Marianela | A Method Of Making A Rapid Setting Lightweight Homogeneous Foamed Fly Ash Based Cementitious Aggregate Composition With Improved Compressive Strength For Products Such As Panels Is Disclosed The Method Mixes Fly Ash, Alkali Metal Salt Of Citric Acid, Foaming Agent For Entraining Air, Optional Foam Stabilizing Agent, A Calcium Sulfate Such As Stucco Or Gypsum, And Water Compositions Are Also Disclosed Which Include Mixtures Of Fly Ash, Particularly Class C Fly Ash Alone Or In Mixtures With Class F Fly Ash, Alkali Metal Salts Of Citric Acid, Foaming Agents, A Calcium Sulfate Such As Calcium Sulfate Dihydrate Or Hemihydrate And An Optional Portland Cement |
| 9,140,015 | Joint Compound, Wall Assembly, And Methods And Products Related Thereto | 9/22/2015 | Negri, Robert H. ; Miklosz, Mark ; Hargrove, Pamela ; Bury, Rafael | A Kit For Assembling Walls And Ceilings Is Provided The Kit Comprises At Least Two Gypsum Boards, Each With At Least One Tapered Edge, And A Self-Drying Joint Compound Comprising A Polymeric Binder And Hollow Spheres Methods For Wall And Ceiling Installation Are Provided As Well |
| 9,169,426 | Joint Compound, Wall Assembly, And Methods And Products Related Thereto | 10/27/2015 | Negri, Robert H. ; Miklosz, Mark ; Hargrove, Pamela ; Bury, Rafael | Disclosed Are Aspects Of Board Finishing Systems For Example, In Various Aspects, Disclosed Are Joint Compound Compositions, Wall Assemblies, Methods Of Treating Walls, And Products Related To Any Of The Foregoing, Including Reinforcement Trim, Eg, For Protecting Corners Where Boards Meet, Fasteners, And Tape The Joint Compound Preferably Is A Drying Type Composition With Reduced Shrinkage Property, And Includes Binder And Hollow Spheres, Resulting In An Ultra Lightweight Formulation In Some Embodiments The Joint Compound Composition Can Be Applied In A One-Coat Treatment In Preferred Embodiments Other Aspects Of Board Finishing System Accommodate Such A One-Coat Treatment To Thusly Allow A User To Manipulate The Compound Closer To The Plane Of Board As Compared With Conventional Formulations Joint Tape And Reinforcement Trim Can Include Non-Swelling Synthetic Paper Facing Material In Some Embodiments |
| 9,170,237 | Positive Drive Floor Test Apparatus | 10/27/2015 | Cavaliero, Robert W. ; Peddle, Robert | A Floor Test Apparatus Is Provided, Including A Base Having An Upper Surface And Defining An Output Shaft Opening, A Frame Disposed In The Base, Having A Main Vertically Projecting Channel In Communication With A Supplemental, Generally Horizontally Projecting Channel Having An Access Opening In A Sidewall Of The Base A Main Drive Shaft Passes Through The Supplemental Channel And Being Coupled To A Gearbox Disposed In The Main Channel A Secondary Shaft Projects Generally From The Gearbox And Is Connected For Common Rotation With The Main Drive Shaft |
| 9,174,881 | Ready Mixed Setting Type Joint Compound And Set Initiator In Chambered Pouch | 11/3/2015 | Cimaglio, Scott ; Immordino, Salvatore C. | A Dosage Size Multi-Chambered, Container Having Separate Sealed Compartments Is Provided And Includes Constituent Materials For Forming A Wallboard Joint Compound The Container Includes A First Compartment Containing A First Mixture Including Calcined Gypsum, A Set Preventer And Water, And A Second Compartment Sealed From The First Compartment With A Seal And Containing A Second Mixture Including A Set Initiator And Water, Wherein Upon Breaking Of The Seal, The First And Second Mixtures Are Combinable By Kneading Action To Provide A Dose Of The Wallboard Joint Compound |
| 9,187,898 | Perimeter Trim Clip For Suspended Ceilings | 11/17/2015 | Underkofler, Abraham M. ; Gulbrandsen, Peder J. ; Paulsen, Mark R. | A Perimeter Trim Attachment Clip Formed As A Single Piece Sheet Metal Stamping, The Clip Having A Base, Top And Bottom Rearwardly Extending Trim Engaging Grips On The Base, The Grips Having A Free Edge Distal From The Base Adapted To Engage Respective Top And Bottom Hems Of A Perimeter Trim Channel, A Standoff Projecting Rearwardly Of The Base Beyond The Grip Edges, The Standoff Being Adapted To Abut The Side Of A Grid Runner Extending Parallel Along The Periphery Of A Free Edge Of A Ceiling, A Squaring Tab Connected To The Base And Configured To Extend Over The Parallel Extending Grid Runner And Be Attached To A Reinforcing Bulb Of A Grid Runner Intersecting The Parallel Grid Runner |
| 9,200,441 | Seismic Wall Support For Suspended Grid | 12/1/2015 | Straight, Yelena ; Lehane, James J. | A Seismic Duty Support System For A Suspended Ceiling At A Wall Intersection Comprising A Roll Formed Sheet Metal Wall Molding, The Wall Molding Having A Vertical Element And A Horizontal Element Unitary With The Vertical Element At An Upper Edge Of The Vertical Element, A Plurality Of Supports Regularly Spaced Along A Length Of The Wall Molding, The Supports Being Attached To And Extending Perpendicularly From The Vertical Element, Each Of Said Supports Lying In A Vertical Plane, Each Support Having A Hole Distal From The Vertical Element For Cooperating With A Tension Element Connected To The End Of An Underlying Grid Runner |
| 9,208,924 | Electrically Conductive Element, System, And Method Of Manufacturing | 12/8/2015 | Boss, Daniel ; Qualls, Scott ; Mcdonald, David ; Kaiserman, Terrance Z. ; Margolin, Keith J. ; Wassief, Michael ; Chai, Liang | An Electrically Conductive Element, Including An Insulator And A First Conductor, Is Provided, Which Can Be Affixed To A Second Conductor Consisting Of Conductive Structural Element, Wherein The Insulator Is Positioned Between The First And Second Conductors To Electrically Isolate Them A Power Supply May Be Connected Between The First And Second Conductors To Provide Power Thereto, And An Electrical Device May Be Connected Across The First And Second Conductors |
| 9,228,347 | Torsion Spring Metal Ceiling System And Hardware | 1/5/2016 | Underkofler, Abraham M. ; Gulbrandsen, Peder J. ; Paulsen, Mark R. | A Rectangular Panel For A Suspended Ceiling, The Panel Having A Suspension Spring With Two Divergent Arms At Each Of Two Opposed Panel Edges Mounted On A Rear Side Of The Panel, Each Spring Being Mounted On The Panel In An Arrangement Permitting The Arms To Lie Parallel To A Front Face Of A Panel, Project Rearwardly Perpendicular To The Front Face And To Lie Outside Of The Panel Parallel To The Front Face, The Spring Mounting Arrangement Enabling The Spring To Be Maintained In The Rearward Orientation By A Force Developed By The Spring With Its Arms Confined And Locator Elements For Registering The Panel With Grid Members Of The Ceiling |
| 9,234,348 | Drywall To Acoustical Ceiling Transition Trims | 1/12/2016 | Lehane, James J. ; Gulbrandsen, Peder J. ; Baker, Chris C. | An Elongate Roll Formed Sheet Metal Molding, And Method Of Its Manufacture, For Transitioning Between A Drywall Ceiling And An Acoustical Tile Ceiling, The Molding Have The General Shape Of An Inverted Tee Formed By A Horizontal Drywall Leg, A Horizontal Acoustical Tile Leg And A Vertical Leg Between The Horizontal Legs, The Drywall Leg Having A Plurality Of Regularly Spaced Holes For Receiving Fasteners To Attach The Molding To A Ceiling Structure, A Periphery Of Each Hole Being Partially Lanced In The Sheet Metal Such That Material From The Hole Forms A Slug, The Slug Remaining Attached To The Sheet Metal At A Part Of The Hole, The Slug Being Bent Flat Onto An Area Of The Sheet Metal Adjacent The Hole |
| 9,249,578 | Joint Compound, Wall Assembly, And Methods And Products Related Thereto | 2/2/2016 | Negri, Robert H. ; Miklosz, Mark | Disclosed Are Aspects Of Board Finishing Systems For Example, In Various Aspects, Disclosed Are Joint Compound Compositions, Wall Assemblies, Methods Of Treating Walls, And Products Related To Any Of The Foregoing, Including Reinforcement Trim, Eg, For Protecting Corners Where Boards Meet, Fasteners, And Tape The Joint Compound Preferably Is A Drying Type Composition With Reduced Shrinkage Property, And Includes Binder And Hollow Spheres, Resulting In An Ultra Lightweight Formulation In Some Embodiments The Joint Compound Composition Can Be Applied In A One-Coat Treatment In Preferred Embodiments Other Aspects Of Board Finishing System Accommodate Such A One-Coat Treatment To Thusly Allow A User To Manipulate The Compound Closer To The Plane Of Board As Compared With Conventional Formulations Joint Tape And Reinforcement Trim Can Include Non-Swelling Synthetic Paper Facing Material In Some Embodiments |
| 9,255,403 | Free Span Ceiling Grid System | 2/9/2016 | Lehane, James J. ; Tedesco, Lee M. ; Gulbrandsen, Peder J. ; Willi, John M. ; Leahy, Donald J. ; Underkofler, Abraham M. ; Straight, Yelena ; O'Donnell, Michael | Components For Constructing A Ceiling Grid Across A Span Free Of Or With A Limited Number Of Suspension Wires Including Main Runners With A Relatively High Moment Of Inertia Secured At Their Ends With Brackets To Wall Moldings On Opposing Walls |
| 9,266,778 | Multi-Layer Acoustical Plaster System | 2/23/2016 | Yeung, Lee K. | An Acoustical Plaster System Features A Base Layer Mixture And A Finish Layer Mixture The Base Layer Mixture Includes A First Binder, A First Thickener And A Plurality Of First Particles, With The First Particles Being Porous, Lightweight, Non-Close Packing Particles Having A First Mean Diameter The Finish Layer Mixture Includes A Powder Latex Binder, A Second Thickener And A Plurality Of Second Particles, With The Second Particles Being Porous, Lightweight Particles Having A Second Diameter The First Mean Diameter Is Larger Than Said Second Mean Diameter |
| 9,296,124 | Slurry Distributor With A Wiping Mechanism, System, And Method For Using Same | 3/29/2016 | Rago, Bill ; Wittbold, James ; Li, Alfred C. ; Lee, Chris C. | A Slurry Distributor Can Include A Distribution Conduit And A Slurry Wiping Mechanism The Distribution Conduit Extends Generally Along A Longitudinal Axis And Includes An Entry Portion, A Distribution Outlet In Fluid Communication With The Entry Portion, And A Bottom Surface Extending Between The Entry Portion And The Distribution Outlet The Distribution Outlet Extends A Predetermined Distance Along A Transverse Axis, Which Is Substantially Perpendicular To The Longitudinal Axis The Slurry Wiping Mechanism Includes A Movable Wiper Blade In Contacting Relationship With The Bottom Surface Of The Distribution Conduit The Wiper Blade Is Reciprocally Movable Between A First Position And A Second Position Over A Clearing Path, Which Is Disposed Adjacent The Distribution Outlet |
| 9,302,448 | Flexible Cementitious Membrane Composite And Associated Crack-Isolation Floor Systems | 4/5/2016 | Dubey, Ashish ; Groza, Peter B. | In A Preferred Embodiment, A Floor Crack Isolation System Includes A Membrane And A Deformable Adhesive The Membrane Includes A Basemat, Having At Least Three Plies, A Ply Of A Meltblown Polymer Sandwiched Between Two Plies Of Spunbond Polymer; And A Flexible Coating Applied To The Basemat, The Coating Having A Cementitious Hydraulic Component, A Polymer Comprising A Water-Soluble, Film-Forming Polymer; And Water The Finished Membrane Is Flexible And Is Bonded To A Subfloor With A Deformable Adhesive A Method Of Making The Floor Crack Isolation System Includes Obtaining A Coated, Three-Ply, Flexible Membrane And Applying It To A Subfloor With A Deformable Adhesive |
| 9,321,681 | Dimensionally Stable Geopolymer Compositions And Method | 4/26/2016 | Dubey, Ashish | A Method For Making Geopolymer Cementitious Binder Compositions For Cementitious Products Such As Concrete, Precast Construction Elements And Panels, Mortar And Repair Materials, And The Like Is Disclosed The Geopolymer Cementitious Compositions Of Some Embodiments Are Made By Mixing A Synergistic Mixture Of Thermally Activated Aluminosilicate Mineral, Calcium Aluminate Cement, A Calcium Sulfate And A Chemical Activator With Water |
| 9,328,023 | Low Water Drying Type Joint Compound | 5/3/2016 | Rosenthal, Guy ; Immordino, Salvatore ; Negri, Robert H. ; Stevens, Richard B. | A Drying Type Joint Compound Composition Is Provided, Including: At Least One Binder, A Filler And Water, The Water Having A Weight Percentage In The Range Of 12-18% Of The Total Weight Of The Composition |
| 9,328,025 | Effective Use Of Melamine Sulfonate Condensate Dispersants In Wallboard Containing Foam | 5/3/2016 | Blackburn, David R. ; Shake, Michael P. ; Lu, Runhai | Effective Use Of Dispersants In Wallboard Containing Foam Results From A Method Where Stucco Is Mixed With A First Dispersant And A First Quantity Of Water To Form A Gypsum Slurry A Soap Is Blended With A Second Dispersant And A Second Quantity Of Water To Make A Foam Subsequently, The Foam Is Combined With The Slurry Choice Of Different First And Second Dispersants And Their Relative Amounts Allows Control Of The Size Distribution Of The Foam Bubbles In The Slurry And The Resulting Voids In The Gypsum Core Melamine Sulfonate Condensate And Polycarboxylate Dispersants Are Preferred Dispersants |
| 9,334,410 | Use Of Aldehyde Scavengers In Interior Building Products | 5/10/2016 | Lu, Runhai ; Rosenstiel, Terry L. ; Immordino, Salvatore ; Song, Weixin D. | A Coating For Application To The Surface Of An Interior Building Product Comprises: A Resin Formulation Such As A Melamine Formaldehyde Resin Characterized By Its Ability To Strengthen The Interior Building Product When Applied As A Coating To The Building Product; And An Aldehyde Scavenger Selected From The Group Consisting Of; Tetraethylene Pentamine, Propionamide, Caprolactam, Ammonium Hydroxide, Sodium Bisulfate, Sodium Metabisulfite, Ammonium Primary Phosphate, Ammonium Secondary Phosphate, A Combination Of Ammonium Primary Phosphate And Ammonium Secondary Phosphate, A Combination Of Ammonium Primary Phosphate, Ammonium Secondary Phosphate And A Sulfite, A Polyvinyl Alcohol; Adipic Dihydrazide And A Combination Of A Polyvinyl Alcohol And Adipic Dihydrazide |
| 9,341,600 | Deflection Gauge For Floor Test Apparatus | 5/17/2016 | Cavaliero, Robert W. ; Peddle, Robert | A Deflection Gauge Configured For Use With A Floor Test Apparatus Is Provided The Gauge Includes A Housing, A String Potentiometer Mounted On The Housing, And A Channel Extending From The Housing And Pivotably Supporting A Pivot Beam The Pivot Beam Has A Contact Button At One End And An Attachment Point On An Opposite End Configured For Receiving A String Of The Potentiometer Deflection Of The Contact Button Due To Floor Sample Weight Stresses Causes The Attachment Point To Pivot And Cause Linear Extension Of The String, Which Is Measured By The Potentiometer |
| 9,346,996 | Oil Well Cementing Products With Synthetic Gypsum And Methods | 5/24/2016 | Lettkeman, Dennis Mark ; Wilson, John Wesley ; Blackburn, Doug ; Ball, Brian K. ; Kaligian, Raymond A. ; Cloud, Mike L. | An Oil Well Cementing Product Comprising DTPA-Coated Synthetic Calcined Gypsum, At Least One Accelerator, At Least One Retarder, At Least One Plasticizer And Limestone Is Provided Also Provided Are Methods For Cementing Oil Wells With Mixtures Comprising DTPA-Coated Synthetic Calcined Gypsum, At Least One Accelerator, At Least One Retarder, At Least One Plasticizer And Limestone |
| 9,365,455 | Spray-Applied Joint Compound, Wall Assembly, And Methods And Products Related Thereto | 6/14/2016 | Hargrove, Pamela L. ; Moyer, Jr., Kevin W. ; Bury, Rafael ; Negri, Robert | Provided Are Compositions And Methods For Expeditious Wall Installation By Spray-Applying A Joint Compound Comprising A Polymeric Binder And Hollow Spheres |
| 9,375,701 | Waste Paint Solidifier | 6/28/2016 | Grussing, Jeffrey F. ; Bernicke-Grussing, Nancy L. | Compositions With Sodium Carboxymethylcellulose And Hydroxyethyl Cellulose Are Provided For Environmentally Safe Disposal Of Water-Based Latex And Acrylic Formulations Improved Methods For Environmentally Safe Disposal Of Water-Based Latex And Acrylic Formulations Are Provided As Well |
| 9,376,810 | Multi-Layer Ceiling Tile | 6/28/2016 | Kemp, Brian A. ; Xu, Wei | A Less Costly Multi-Layer Acoustical Panel Having Improved Noise Absorption Properties Includes A Fiberglass Layer And A Mineral Wool Layer Wherein The Fiberglass Layer Has A Fibrous Content Comprising At Least About 50% By Weight Of Glass Fiber And The Mineral Wool Layer Has A Fibrous Content Comprising At Least About 50% By Weight Of Mineral Wool Fiber The Noise Absorption Coefficient Of The Panel Is Linearly Related To Increases In The Thickness Of The Fiberglass Layer A Lamination Technique For Making The Panels Is Also Disclosed |
| 9,376,824 | Nonwoven Joint Tape Having Low Moisture Expansion Properties And Method For Using Same | 6/28/2016 | Neill, Paul H. ; Immordino, Salvatore C. ; Stevens, Richard B. ; Miller, Charles J. | The Invention Is Directed To A Joint Tape For Finishing A Joint Between Boards Comprising A Nonwoven Substrate That Does Not Swell Substantially In The Presence Of Water The Invention Further Provides A Method Of Finishing A Joint Between Boards Comprising (I) Applying A Joint Tape Of The Invention To A Joint Between Boards By Embedding The Joint Tape In A First Coat Of Joint Compound, (Ii) Applying A Second Coat Of Joint Compound Over The Tape, Wherein Step (Ii) Is Carried Out Before The Joint Tape And Joint Compound Applied In Step (I) Have Substantially Dried, And Optionally (Iii) Applying A Third Fill Or Finish Coat Of Joint Compound Over The Tape, Wherein Step (Iii) Is Carried Out Before The Joint Tape And Second Coat Have Substantially Dried |
| 9,410,058 | Compositions And Methods For Water-Resistant Gypsum Fiber Products | 8/9/2016 | Blackburn, David R. ; Xu, Yufeng | A Water-Resstant Gypsum Fiber Product Comprising Siloxane And Coated With A Coating Comprising Alkali Metal Organosiliconate Is Provided A Method Of Making A Gypsum Fiber Product In Which Siloxane Is Cross-Linked At The Surface Of The Product Is Also Provided A Fuel-Efficient Method For Making The Product And Reducing The Amount Of Siloxane Dust Released Is Provided As Well |
| 9,416,536 | Indexed Support Bar | 8/16/2016 | Lehane, James J. ; Underkofler, Abraham M. ; Gulbrandsen, Peder J. | A Support Bar, And Method Of Its Manufacture, For Suspending Grid Members Of A Suspended Ceiling, The Bar Being Formed Of A Length Of A Sheet Metal Strip, A Lower Portion Of The Bar Having Regularly Spaced Holes For Receiving And Supporting Bulbs Of Grid Runners, An Upper Portion Of The Bars Having Longitudinally Extending Formed Ribs, The Ribs Extending Laterally From Both Sides Of A Central Plane In Which The Lower Portion Lies |
| 9,417,227 | Methods For Detecting Sulfur | 8/16/2016 | Jankowski, Michael F. ; Weinberger, Renee J. | A Method For Rapid Detection Of Sulfur In A Gypsum Sample By Causing Emission Of Sulfur From The Sample As Vapors, Reacting The Vapors With Silver Nitrate And Detecting Sulfur By Monitoring For Color Change A Kit For Rapid Detection Of Sulfur In A Gypsum Sample Is Also Provided Further Methods Include Those In Which The Amount Of Sulfur In A Gypsum Sample Is Quantified In Colorimetric Analysis With Silver Nitrate And Gypsum Standards With Known Concentrations Of Sulfur |
| 9,422,714 | Wooden Frame Truss With Enhanced Fire Resistance | 8/23/2016 | Miller, Gary Franklin | A Wooden Frame Truss With Enhanced Fire Resistance Is Provided And Includes An Upper Chord Extending Along A Longitudinal Axis, A Lower Chord Disposed Below The Upper Chord And Extending Along A Vertically Displaced, Parallel Axis, A Plurality Of Supports Attached Between The Upper And Lower Chords, And A Plurality Of Metal Gusset Plates Securing The Supports To The Chords At Least One Wallboard Batten Strip Is Attached To An Underside Of The Lower Chord, The Strip Being Constructed And Arranged So That The Strip Defines A Ledge Extending From Each Side Of The Lower Chord |
| D250774 | Universal Joining Section For Lawn And Garden Edging | 1/9/1979 | Martinelli, Lawrence R. | Design For Universal Joining Section For Lawn And Garden Edging |
| D260438 | Decorative Window Panel For Doors | 8/25/1981 | Martinelli, Lawrence R. | Design For Decorative Window Panel For Doors |
| D260439 | Decorative Window Panel For Doors | 8/25/1981 | Martinelli, Lawrence R. | Design For Decorative Window Panel For Doors |
| D260555 | Decorative Window Panel For Doors | 9/1/1981 | Martinelli, Lawrence R. | Design For Decorative Window Panel For Doors |
| D292317 | Sliding Glass Door | 10/13/1987 | Martinelli, Lawrence R. | Design For Sliding Glass Door |
| D292318 | Sliding Glass Door | 10/13/1987 | Martinelli, Lawrence R. | Design For Sliding Glass Door |
| D292319 | Sliding Glass Door | 10/13/1987 | Martinelli, Lawrence R. | Design For Sliding Glass Door |
| D297528 | Boat | 9/6/1988 | May, Bill D. | Design For Boat |
| D302970 | Flush Mounted Chock | 8/22/1989 | May, Bill D. | Design For Flush Mounted Chock |
| D304498 | Subceiling Panel Unit | 11/7/1989 | Carey, Bruce P. | Design For Subceiling Panel Unit |
| D308577 | Embossed Acoustical Ceiling Panel | 6/12/1990 | Hillman, Theodore E. | Design For Embossed Acoustical Ceiling Panel |
| D308578 | Embossed Acoustical Ceiling Panel | 6/12/1990 | Hillman, Theodore E. | Design For Embossed Acoustical Ceiling Panel |
| D317210 | Ceiling Panel Unit | 5/28/1991 | Rodriguez, Daniel V. ; Carey, Bruce P. | Design For Ceiling Panel Unit |
| D341894 | Ceiling Unit | 11/30/1993 | Tinen, William J. ; Kies, Jared R. | Design For Ceiling Unit |
| D364692 | Fiberglass Reinforced Gypsum Ceiling Panel | 11/28/1995 | Tinen, William J. | Design For Fiberglass Reinforced Gypsum Ceiling Panel |
| D364932 | Fiberglass Reinforced Gypsum Ceiling Panel | 12/5/1995 | Tinen, William J. | Design For Fiberglass Reinforced Gypsum Ceiling Panel |
| D365157 | Fiberglass Reinforced Gypsum Ceiling Panel | 12/12/1995 | Tinen, William J. | Design For Fiberglass Reinforced Gypsum Ceiling Panel |
| D365158 | Fiberglass Reinforced Gypsum Ceiling Panel | 12/12/1995 | Tinen, William J. | Design For Fiberglass Reinforced Gypsum Ceiling Panel |
| D365159 | Fiberglass Reinforced Gypsum Ceiling Panel | 12/12/1995 | Tinen, William J. | Design For Fiberglass Reinforced Gypsum Ceiling Panel |
| D365160 | Fiberglass Reinforced Gypsum Ceiling Panel | 12/12/1995 | Tinen, William J. | Design For Fiberglass Reinforced Gypsum Ceiling Panel |
| D367120 | Fiberglass Reinforced Gypsum Ceiling Panel | 2/13/1996 | Tinen, William J. | Design For Fiberglass Reinforced Gypsum Ceiling Panel |
| D367718 | Fiberglass Reinforced Gypsum Ceiling Panel | 3/5/1996 | Tinen, William J. | Design For Fiberglass Reinforced Gypsum Ceiling Panel |
| D396018 | Interior Tree | 7/14/1998 | Stover, David R. ; Seymour, Merritt W. ; Surra, Robert J. ; Wendt, Alan C. ; Lindby-Young, Merle | Design For Interior Tree |
| D464737 | Free Form Ceiling | 10/22/2002 | Gulbrandsen, Peder; Lehane, James J. | Design For Free Form Ceiling |
| D474550 | Ceiling Panel | 5/13/2003 | Wendt, Alan C. | Design For Ceiling Panel |
| D474847 | Embossed Acoustical Ceiling Panel | 5/20/2003 | Seymour, Merritt W.; Lynch, Diane I.; Kies, Jared R.; Lindby-Young, Merle A. | Design For Embossed Acoustical Ceiling Panel |
| D476093 | Embossed Acoustical Ceiling Panel | 6/17/2003 | Lynch, Diane I.; Kies, Jared R.; Lindby-Young, Merle A. | Design For Embossed Acoustical Ceiling Panel |
| D512521 | Wire Formed Ceiling Panel | 12/6/2005 | Gulbrandsen, Peder | Design For Wire Formed Ceiling Panel |
| D512787 | Curved Ceiling Panel | 12/13/2005 | Lonneman, Deborah Marie | Design For Curved Ceiling Panel |
| D513537 | Ceiling Panel | 1/10/2006 | Gulbrandsen, Peder | Design For Ceiling Panel |
| D519220 | Wire Weave Ceiling Panel | 4/18/2006 | Gulbrandsen, Peder | Design For Wire Weave Ceiling Panel |
| D521658 | Small Wave Wire Form Ceiling Panel | 5/23/2006 | Gulbrandsen, Peder | Design For Small Wave Wire Form Ceiling Panel |
| D538449 | Large Wave Wire Form Ceiling Panel | 3/13/2007 | Gulbrandsen, Peder | Design For Large Wave Wire Form Ceiling Panel |
| D541616 | Contoured Handle For Taping Knife | 5/1/2007 | Bruno, Robert ; Lind, Jason ; Myers, Matthew Earle | Design For Contoured Handle For Taping Knife |
| D541617 | Handle For Taping Knife With Enlarged Hammer End | 5/1/2007 | Perez, Ricardo ; Lind, Jason ; Myers, Matthew Earle | Design For Handle For Taping Knife With Enlarged Hammer End |
| D549070 | Offset Handle For Taping Knife | 8/21/2007 | Bruno, Robert ; Sterpka, Frank ; Myers, Matthew Earle | Design For Offset Handle For Taping Knife |
| D551053 | Contoured Handle For Taping Knife | 9/18/2007 | Bruno, Robert ; Lind, Jason ; Myers, Matthew Earle | Design For Contoured Handle For Taping Knife |
| D553939 | Offset Handle For Taping Knife | 10/30/2007 | Bruno, Robert ; Sterpka, Frank ; Myers, Matthew Earle | Design For Offset Handle For Taping Knife |
| D553940 | Handle For Taping Knife With Enlarged Hammer End | 10/30/2007 | Perez, Ricardo ; Lind, Jason ; Myers, Matthew Earle | Design For Handle For Taping Knife With Enlarged Hammer End |
| D553941 | Offset Handle For Taping Knife | 10/30/2007 | Bruno, Robert ; Sterpka, Frank ; Myers, Matthew Earle | Design For Offset Handle For Taping Knife |
| D557102 | Handle For Taping Knife With Enlarged Hammer End | 12/11/2007 | Perez, Ricardo ; Lind, Jason ; Myers, Matthew Earle | Design For Handle For Taping Knife With Enlarged Hammer End |
| D563770 | Acoustical Mounting Bracket For Attaching Ceiling Suspension To Floor Joists | 3/11/2008 | Payne, Jr., Stephen W. | Design For Acoustical Mounting Bracket For Attaching Ceiling Suspension To Floor Joists |
| D565383 | Contoured Handle For Taping Knife | 4/1/2008 | Bruno, Robert ; Lind, Jason ; Myers, Matthew Earle | Design For Contoured Handle For Taping Knife |
| D565921 | Offset Handle For Taping Knife | 4/8/2008 | Bruno, Robert ; Sterpka, Frank ; Myers, Matthew Earle | Design For Offset Handle For Taping Knife |
| D566143 | Mixer For Viscous Materials | 4/8/2008 | Rosso, Aaron Charles ; Myers, Matthew Earle ; Wascow, Joseph Z. ; Retzke, Brian A. ; Immordino, Jr., Salvatore C. ; Rosenstiel, Terry L. | The Design Consists Of The Features Of Shape, Configuration, Ornamentation And Pattern Of The Mixer |
| D572565 | Handle For Taping Knife With Enlarged Hammer End | 7/8/2008 | Perez, Ricardo ; Lind, Jason ; Myers, Matthew Earle | Design For Handle For Taping Knife With Enlarged Hammer End |
| D576186 | Mixer For Viscous Materials | 9/2/2008 | Rosso, Aaron Charles ; Myers, Matthew Earle ; Wascow, Joseph Z. ; Retzke, Brian A. ; Immordino, Jr., Salvatore C. ; Rosenstiel, Terry L. ; Fong, Scott | The Design Consists Of The Features Of Shape, Configuration, Ornamentation And Pattern Of The Mixer Shown In Solid Lines In The Drawings The Portions Shown In Stippled Lines Do Not Form Part Of The Design Fig 1 Is A Top Perspective View Of A Mixer For Viscous Materials; FIG 2 Is A Front Side View Of The Mixer; FIG 3 Is A Right Side View Of The Mixer; FIG 4 Is A Rear View Of The Mixer; FIG 5 Is A Top View Of The Mixer; And FIG 6 Is A Bottom View Of The Mixer The Subject Matter Depicted In Broken Lines Is Not Intended To Be Part Of The Design And Is Shown Only For Environment Purposes |
| D577835 | Suspended Ceiling Grid Tee | 9/30/2008 | Raheel, Muhammad M. ; Lehane, Jr., James J. ; Lalonde, Paul | Design For Suspended Ceiling Grid Tee |
| D583839 | Paper Beading Apparatus | 12/30/2008 | Rosso, Aaron Charles ; Myers, Matthew Earle ; Patel, Amar Arvind ; Wascow, Joseph Z. ; Oshgan, Stephen M. ; Retzke, Brian A. | Design For Paper Beading Apparatus |
| D583840 | Inside Corner Gate For Paper Beading Apparatus | 12/30/2008 | Rosso, Aaron Charles ; Myers, Matthew Earle ; Patel, Amar Arvind ; Wascow, Joseph Z. ; Oshgan, Stephen M. ; Retzke, Brian A. ; Fong, Scott | Design For Inside Corner Gate For Paper Beading Apparatus |
| D586246 | T-Square With Finger Guard | 2/10/2009 | Rosso, Aaron Charles ; Myers, Matthew Earle ; Patel, Amar Arvind ; Fong, Scott | Design For T-Square With Finger Guard |
| D589334 | Clip For Architectural Element | 3/31/2009 | Hotchkiss, Iii, Wesley | Design For Clip For Architectural Element |
| D592487 | Grid Tee Face Sleeve | 5/19/2009 | Tedesco, Lee M. ; Lalonde, Paul D. ; Lerner, Ilya | Design For Grid Tee Face Sleeve |
| D598477 | Corner Bead Roller Tool | 8/18/2009 | Rosso, Aaron Charles ; Myers, Matthew Earle ; Patel, Amar Arvind ; Fong, Scott ; Wascow, Joseph Z. ; Williams, Daniel J. ; Retzke, Brian A. | Design For Corner Bead Roller Tool |
| D599231 | Finger Guard For A T-Square | 9/1/2009 | Rosso, Aaron Charles ; Myers, Matthew Earle ; Patel, Amar Arvind ; Fong, Scott | Design For Finger Guard For A T-Square |
| D599831 | Corner Bead Roller Tool | 9/8/2009 | Rosso, Aaron Charles ; Myers, Matthew Earle ; Patel, Amar Arvind ; Fong, Scott ; Wascow, Joseph Z. ; Williams, Daniel J. ; Retzke, Brian A. | Design For Corner Bead Roller Tool |
| D601177 | Tray For Paper Beading Apparatus | 9/29/2009 | Rosso, Aaron Charles ; Myers, Matthew Earle ; Patel, Amar Arvind ; Wascow, Joseph Z. ; Oshgan, Stephen M. ; Retzke, Brian A. ; Fong, Scott | Design For A Mold For Paper Such As Shown In Figure |
| D608377 | Outside Corner Gate For Paper Beading Apparatus | 1/19/2010 | Rosso, Aaron Charles ; Myers, Matthew Earle ; Patel, Amar Arvind ; Wascow, Joseph Z. ; Oshgan, Stephen M. ; Retzke, Brian A. ; Fong, Scott | Design For A Piece Of Paper For Making Moldings |
| D608619 | Bridge Apparatus Useful For Ceiling Grid Systems | 1/26/2010 | Gulbrandsen, Peder ; Groza, Peter ; Ahren, Gregory ; Bankston, John | Design For Bridge Apparatus Useful For Ceiling Grid Systems |
| D611332 | Four-Way Intersection Clip | 3/9/2010 | Tedesco, Lee M. ; Lalonde, Paul D. ; Lerner, Ilya | Design For Four-Way Intersection Clip |
| D612224 | Perimeter Trim Mounting Bracket | 3/23/2010 | Wendt, Alan C. | Design For Perimeter Trim Mounting Bracket |
| D614943 | Acoustic Isolator Clip | 5/4/2010 | Socha, Dennis Albert ; Mullet, Randy Paul | Design For Acoustic Isolator Clip |
| D618826 | Ceiling Grid Tee With Uniform Effective Thickness | 6/29/2010 | Lehane, Jr., James Joseph | Design For Ceiling Grid Tee With Uniform Effective Thickness |
| D626406 | Mounting Bracket Useful For Ceiling Grid Systems | 11/2/2010 | Tedesco, Lee Matthew ; Lehane, Jr., James Joseph ; Underkofler, Abraham Monroe ; Paulsen, Mark Robert | Design For Mounting Bracket Useful For Ceiling Grid Systems |
| D626407 | Mounting Bracket Useful For Ceiling Grid Systems | 11/2/2010 | Tedesco, Lee Matthew ; Lehane, Jr., James Joseph ; Underkofler, Abraham Monroe ; Paulsen, Mark Robert | Design For Mounting Bracket Useful For Ceiling Grid Systems |
| D637897 | Mounting Bracket Useful For Ceiling Grid Systems | 5/17/2011 | Tedesco, Lee Matthew ;Lehane, Jr., James Joseph ; Underkofler, Abraham Monroe ; Paulsen, Mark Robert | Design For Mounting Bracket Useful For Ceiling Grid Systems |
| D637898 | Seismic Attachment Clip For Suspended Ceilings | 5/17/2011 | Tedesco, Lee Matthew ; Lehane, James Joseph ; Underkofler, Abraham Monroe ; Gulbrandsen, Peder John ; Paulsen, Mark Robert | Design For Seismic Attachment Clip For Suspended Ceilings |
| D637899 | Seismic Expansion Joint Clip For Suspended Ceilings | 5/17/2011 | Tedesco, Lee Matthew ; Lehane, James Joseph ; Underkofler, Abraham Monroe ; Gulbrandsen, Peder John ; Paulsen, Mark Robert | Design For Seismic Expansion Joint Clip For Suspended Ceilings |
| D638286 | Seismic Attachment Clip For Suspended Ceilings | 5/24/2011 | Tedesco, Lee Matthew ; Lehane, James Joseph ; Underkofler, Abraham Monroe ; Gulbrandsen, Peder John ; Paulsen, Mark Robert | Design For Seismic Attachment Clip For Suspended Ceilings |
| D638287 | Seismic Attachment Clip For Suspended Ceilings | 5/24/2011 | Tedesco, Lee Matthew ; Lehane, James Joseph ; Underkofler, Abraham Monroe ; Gulbrandsen, Peder John ; Paulsen, Mark Robert | Design For Seismic Attachment Clip For Suspended Ceilings |
| D638288 | Seismic Expansion Joint Clip For Suspended Ceilings | 5/24/2011 | Tedesco, Lee Matthew ; Lehane, James Joseph ; Underkofler, Abraham Monroe ; Gulbrandsen, Peder John ; Paulsen, Mark Robert | Design For Seismic Expansion Joint Clip For Suspended Ceilings |
| D638289 | Seismic Expansion Joint Clip For Suspended Ceilings | 5/24/2011 | Tedesco, Lee Matthew ; Lehane, James Joseph ; Underkofler, Abraham Monroe ; Gulbrandsen, Peder John ; Paulsen, Mark Robert | Design For Seismic Expansion Joint Clip For Suspended Ceilings |
| D641500 | Suspended Ceiling Grid Tee | 7/12/2011 | Lehane, Jr., James J. ; Gulbrandsen, Peder J. ; Hammond, John L. ; Underkofler, Abraham M. ; Paulsen, Mark R. | The Design Consists Of The Features Of Configuration, Shape, Ornamentation And Pattern Of The Suspended Ceiling Grid Tee Having Indefinite Length Shown In Solid Lines In The Drawings, The Portions Shown In Stippled Lines Not Forming Part Of The Design And The Repeating Portions Of The Non-Design Features Shown In Stippled Lines Repeat At Regular Intervals Throughout The Length Of The Article, In Which: Figure 1 Is A Isometric View Of A Suspended Ceiling Grid Tee; Figure 2 Is An End View Of The Suspended Ceiling Grid Tee Shown In Figure 1;Figure 3 Is A Right Side View Of The Suspended Ceiling Grid Tee Shown In Figure 1, The Left Side View Being A Mirror Image Of This View; Figure 4 Is A Top Plan View Of The Suspended Ceiling Grid Tee Shown In Figure 1; And Figure 5 Is A Bottom Plan View Of The Suspended Ceiling Grid Tee Shown In Figure 1Drawings Of The Design Are Included |
| D641501 | Suspended Ceiling Grid Tee Assembly | 7/12/2011 | Lehane, Jr., James J. ; Gulbrandsen, Peder J. ; Hammond, John L. ; Underkofler, Abraham M. ; Paulsen, Mark R. | The Design Consists Of The Features Of Configuration, Shape, Ornamentation And Pattern Of The Suspended Ceiling Grid Tee Assembly Having An Indefinite Length Shown In Solid Lines In The Drawings, The Portions Shown In Stippled Lines Not Forming Part Of The Design And The Repeating Portions Of The Non-Design Features Shown In Stippled Lines Repeat At Regular Intervals Throughout The Length Of The Article, In Which: Figure 1 Is A Isometric View, From Below, Of A Suspended Ceiling Grid Tee Assembly; Figure 2 Is A Side View Of The Suspended Ceiling Grid Tee Assembly Shown In Figure 1 Taken Parallel To A Main Tee, The Opposite View Being A Mirror Image Of This View; Figure 3 Is A Side View Of The Suspended Ceiling Grid Tee Assembly Shown In Figure 1 Taken Parallel To A Cross Tee, The Opposite View Being A Mirror Image Of This View; Figure 4 Is A Top Plan View Of The Suspended Ceiling Grid Tee Assembly Shown In Figure 1; And Figure 5 Is A Bottom Plan View Of The Suspended Ceiling Grid Tee Assembly Shown In Figure 1Drawings Of The Design Are Included |
| D656006 | Intersection Clip For Suspended Ceilings | 3/20/2012 | Underkofler, Abraham Monroe ; Lehane, James Joseph ; Gulbrandsen, Peder John ; Paulsen, Mark Robert | Design For Intersection Clip For Suspended Ceilings |
| D656251 | Seismic Expansion Sleeve For Suspended Ceilings | 3/20/2012 | Underkofler, Abraham Monroe ; Lehane, James Joseph ; Gulbrandsen, Peder John ; Paulsen, Mark Robert | Design For Seismic Expansion Sleeve For Suspended Ceilings |
| D662615 | Ceiling Tile With Piercing Clips | 6/26/2012 | Gulbrandsen, Peder John | Design For Ceiling Tile With Piercing Clips |
| D662618 | Ceiling Tile | 6/26/2012 | Englert, Mark | Design For Ceiling Tile |
| D668352 | Suspended Ceiling Wall Angle | 10/2/2012 | Field, Graham Keith ; Voigt, Thomas Andreas | Grid Members, Namely A Runner (10) And Wall Angle (400) For Suspended Ceiling Grids, Are Disclosed Certain Embodiments Of The Runner And The Wall Angle Have Two Web Portions (28, 30) And At Least One Distinct Indent Portion (62) To Define A Space Between The Web Portions An Adhesive (56) May Be Disposed Within One Or More Of The Indent Portions (62) To Adhere The Two Web Portions (28, 30) To Each Other Certain Embodiments Of The Runner Or Wall Angle Have Flange Portions (32, 34) That May Have Indent Portions As Well One Or More Of These Indent Portions May Contain Adhesive Some Embodiments Of The Runner Or Wall Angle Have Overturned Cap Portions On The Flange Portions, And An Adhesive May Be Placed Between The Overturned Cap Portions And Upwardly Facing Surfaces Of The Flange Portions |
| D672476 | Suspended Ceiling Grid Tee | 12/11/2012 | Field, Graham Keith ; Voigt, Thomas Andreas | Grid Members, Namely A Runner (10) And Wall Angle (400) For Suspended Ceiling Grids, Are Disclosed Certain Embodiments Of The Runner And The Wall Angle Have Two Web Portions (28, 30) And At Least One Distinct Indent Portion (62) To Define A Space Between The Web Portions An Adhesive (56) May Be Disposed Within One Or More Of The Indent Portions (62) To Adhere The Two Web Portions (28, 30) To Each Other Certain Embodiments Of The Runner Or Wall Angle Have Flange Portions (32, 34) That May Have Indent Portions As Well One Or More Of These Indent Portions May Contain Adhesive Some Embodiments Of The Runner Or Wall Angle Have Overturned Cap Portions On The Flange Portions, And An Adhesive May Be Placed Between The Overturned Cap Portions And Upwardly Facing Surfaces Of The Flange Portions |
| D678549 | Suspended Ceiling Grid Runner Assembly | 3/19/2013 | Lehane, Jr., James J. ; Gulbrandsen, Peder J. ; Paulsen, Mark R. ; Underkofler, Abraham M. | Design For Suspended Ceiling Grid Runner Assembly |
| D679176 | Clip For Suspended Ceilings | 4/2/2013 | Tedesco, Lee Matthew ; Lehane, James Joseph | Design For Clip For Suspended Ceilings |
| D682069 | Bracket Useful For Mounting Ceiling Grid Tees To Walls Or Ceilings | 5/14/2013 | Lehane, James Joseph ; O'Donnell, Michael Patrick ; Alnakkar, Faris ; Ahren, Gregory | Design For Bracket Useful For Mounting Ceiling Grid Tees To Walls Or Ceilings |
| D719728 | Footwear Upper | 12/23/2014 | Carrizo, Hector Rubio | Design For Footwear Upper |
| D721945 | Grid Tee Supporting Clip | 2/3/2015 | Underkofler, Abraham M. ; Gulbrandsen, Peder J. ; Gross, Robert W. ; Paulsen, Mark R. | Design For Grid Tee Supporting Clip |
| D729053 | Perimeter Trim Clip | 5/12/2015 | Underkofler, Abraham M. ; Gulbrandsen, Peder J. ; Paulsen, Mark R. | Design For Perimeter Trim Clip |
| D733934 | Utility Module Bracket | 7/7/2015 | Underkofler, Abraham M. ; Gulbrandsen, Peder J. ; Paulsen, Mark R. | The Design Is The Visual Features Of The UTILITY MODULE BRACKET Shown In Solid Lines In The Drawings, Whether Those Features Are Features Of One Of Shape, Configuration, Ornament Or Pattern Or Are A Combination Of Any Of These Features The Portions Shown In Stippled Lines Do Not Form Part Of The Design Figure 1 Is An Isometric View Of An Utility Module Bracket; Figure 2 Is A Front View Of The Utility Module Bracket Shown In Figure 1;Figure 3 Is A Right Side View Of The Utility Module Bracket Shown In Figure 1;Figure 4 Is A Top View Of The Utility Module Bracket Shown In Figure 1;Figure 5 Is A Bottom View Of The Utility Module Bracket Shown In Figure 1;Figure 6 Is A Rear View Of The Utility Module Bracket Shown In Figure 1; Figure 7 Is An Isometric View Of The Utility Module Bracket Shown In Figure 1, In A First Deployed Configuration; And Figure 8 Is An Isometric View Of The Utility Module Bracket Shown In Figure 1, In A Second Deployed Configuration; |
| D736598 | Perimeter Seismic Slip Joint Clip | 8/18/2015 | Keen, John F. ; Peck, David J. | The Design Is The Visual Features Of The Perimeter Seismic Slip Joint Clip Shown In Solid Lines In The Drawings, Whether Those Features Are Features Of One Of Shape, Configuration, Ornament Or Pattern Or Are A Combination Of Any Of These Features Figure 1 Is An Isometric View Of The Perimeter Seismic Slip Joint Clip; Figure 2 Is A Top Plan View Of The Perimeter Seismic Slip Joint Clip; Figure 3 Is A Left Side Elevational View Of The Perimeter Seismic Slip Joint Clip, The Right Side Being A Mirror Image Thereof; Figure 4 Is A Bottom Plan View Of The Perimeter Seismic Slip Joint Clip; Figure 5 Is A Front Elevational View Of The Perimeter Seismic Slip Joint Clip; And Figure 6 Is A Rear Elevational View Of The Perimeter Seismic Slip Joint Clip Drawings Of The Design Are Included |
| D736606 | Bracket For A Two-Piece Yoke For A Suspended Ceiling | 8/18/2015 | Underkofler, Abraham M. ; Gulbrandsen, Peder J. ; Paulsen, Mark R. | The Design Is The Visual Features Of The Bracket For A Two-Piece Yoke For A Suspended Ceiling Shown In Solid Lines In The Drawings, Whether Those Features Are Features Of One Of Shape, Configuration, Ornament Or Pattern Or Are A Combination Of Any Of These Features The Portion Shown In Stippled Lines Do Not Form Part Of The Design Figure 1 Is An Isometric View Of A Bracket For A Two-Piece Yoke For A Suspended Ceiling; Figure 2 Is A Front View Of The Bracket For A Two-Piece Yoke For A Suspended Ceiling Shown In Figure 1;Figure 3 Is A Top View Of The Bracket For A Two-Piece Yoke For A Suspended Ceiling Shown In Figure 1;Figure 4 Is A Right Side View Of The Bracket For A Two-Piece Yoke For A Suspended Ceiling Shown In Figure 1;Figure 5 Is A Rear View Of The Bracket For A Two-Piece Yoke For A Suspended Ceiling Shown In Figure 1;Figure 6 Is A Left Side View Of The Bracket For A Two-Piece Yoke For A Suspended Ceiling Shown In Figure 1; And Figure 7 Is A Bottom View Of The Bracket For A Two-Piece Yoke For A Suspended Ceiling Shown In Figure 1Drawings Of The Design Are Included |
| D739957 | Cross Tee With A Hole Locking Tab | 9/29/2015 | Gulbrandsen, Peder J. ; Paulsen, Mark R. ; Underkofler, Abraham M. | The Design Is The Visual Features Of The CROSS TEE WITH A HOLE LOCKING TAB Shown In Solid Lines In The Drawings, Whether Those Features Are Features Of One Of Shape, Configuration, Ornament Or Pattern Or Are A Combination Of Any Of These Features Figure Reference: Figure 1 Is An Isometric View Of A Cross Tee With A Hole Locking Tab; Figure 2 Is A Top Plan View Of The Cross Tee With A Hole Locking Tab Shown In Figure 1;Figure 3 Is A Side Elevational View Of The Cross Tee With A Hole Locking Tab Shown In Figure 1, The Opposite Side Being Identical; Figure 4 Is An End View Of The Cross Tee With A Hole Locking Tab Shown In Figure 1, The Opposite End Being Identical; And Figure 5 Is A Bottom View Of The Cross Tee With A Hole Locking Tab Shown In Figure 1Drawings Of The Design Are Included |
| RE29753 | Asbestos-Free Joint Compounds | 9/5/1978 | Williams, Terrance L. | A Joint Compound Which Is Preferably Asbestos-Free, For Use In Finishing Joints Between Wallboards, Comprising A Filler, A Binder, And Any Two Or All Three Of A Water-Holding Agent; A Slip-Inducing Colloid; And A Non-Swelling Clay Having Sufficient Pseudoplasticity To Render The Composition Non-Leveling |
| RE44070 | Composite Light Weight Gypsum Wallboard | 3/12/2013 | Yu, Qiang ; Song, Weixin D. | The Invention Provides A Light Weight Composite Gypsum Board Including A Foamed Low Density Set Gypsum Core, A Top Non-Foamed (Or Reduced-Foamed) Bonding High Density Layer And A Bottom Non-Foamed (Or Reduced-Foamed) Bonding High Density Layer, A Top Cover Sheet Bonded To The Foamed Low Density Set Gypsum Core By The Top Non-Foamed (Or Reduced-Foamed) Bonding High Density Layer, And A Bottom Cover Sheet Bonded To The Foamed Low Density Set Gypsum Core By The Bottom Non-Foamed (Or Reduced-Foamed) Bonding High Density Layer The Foamed Low Density Set Gypsum Core Is Prepared Having A Density Of Less Than About 30 Pcf Using Soap Foam In The Gypsum-Containing Slurry The Combination Of Components Provide A Composite Gypsum Board Having Light Weight And High Strength |
| RE46131 | Acoustical Tile | 8/30/2016 | Carbo, Adelaida ; Hacker, Gary ; Byers, Charles ; Cimaglio, Scott Daryl | The Present Invention Relates To An Acoustical Tile That Includes A Core And A Surface Treatment The Surface Treatment Comprises A Formaldehyde-Free Latex Binder, The Binder Including At Least One Formaldehyde-Free Biocide The Present Invention Also Provides A Process Of Manufacturing An Acoustical Tile |
| 9,464,433 | Self-tightening splice | 10/11/2016 | Samuel D. Hulka, Peder J. Gulbrandsen, Abraham M. Underkofler | A splice clip for a trim strip of the type having a receiving track with re-entrant flanges, the clip being formed as a single piece sheet metal body having an elongated configuration with parallel edges along opposed long sides lying in a flat plane, a locking tab on each longitudinal half of the body supported on an integral hinge, each locking tab having a locking edge eccentric of the respective hinge, each locking tab being pivotal on the respective hinge from an initial position with said locking edge in said plane to a locking position in which said locking edge is out of said plane whereby it is adapted to frictionally lock against a surface of the trim strip associated with the clip receiving track. |
| 9,476,206 | Wallboard joint tape having directional indicators | 10/25/2016 | Charles J. Miller | A wallboard joint tape designed to cover a seam joint defined by joining adjacent sheets of wallboard includes an elongate length of tape being supplied as a rolled strip having a first side edge and a second side edge wrapped around a center member having a central opening. The strip has an upper side and an opposite lower side. A lengthwise crease is provided along a centered longitudinal line of the lower side. A plurality of indicators is provided for marking at least one side edge of the tape for enhancing a proper orientation of the tape. The proper orientation of the tape is determined based on a location of the indicators upon the tape. |
| 9,476,194 | Framing clips | 10/25/2016 | Samuel D. Hulka, Peder J. Gulbrandsen | A clip for attaching an extruded decorative trim strip of the type having a clip receiving track formed on the rear face of the strip to support structure, comprising a stamped one piece sheet metal body, the body being generally flat and generally rectangular in plan view, an attachment tab within a perimeter of the body, and partially separated from the body by slots at respective edges of the tab, the tab being foldable out of a plane of the body by application of a manually developed force, said tab being constructed when folded to assume an orientation in a plane outside of a plane of the body, the tab including a locking portion adapted to project from the plane of the body of the clip on a side of the clip opposite a side on which a major portion of the tab lies when folded. |
| 9,492,961 | Acoustic Ceiling Tiles with Anti-Sagging Properties and Methods of Making Same | 11/15/2016 | Wei Xu, Brian Kemp, Mark Englert, Martin Brown, Terry Rosenstiel | An acoustic tile with excellent anti-sagging properties is provided. The tile comprises a soy-protein binder selected from the group consisting of soy flour, soy protein concentrate, soy protein isolate and any combination thereof. In further embodiments, the tile further comprises polyamide-epichlorohydrin. Other tiles include those made with a thermosetting binder selected from the group consisting of an acrylic binder, a polyester binder, an acrylo-polyester binder and any mixture thereof. Energy-efficient methods for making the tiles are also provided. |
| 9,540,287 | Particle stabilized foam, and slurries, product, and methods related thereto | 1/10/2017 | Aldabaibeh, Naser; Natesaiyer, Kumar; Dubey, Ashish | Disclosed are cementitious product, as well as cementitious slurry, and method of forming the product. To reduce density in the cementitious product, foam is included in the slurry and in the method of forming the product. The slurry includes cementitious particles, water, and air bubbles such as from compressed air. Instead of using detergent chemistry at the gas/water interface of bubbles, the present invention uses a surface modifying agent for the cementitious particles in the slurry. The modified particles act to produce stable foam in the slurry. As an example mode of introduction, the surface modifier can be added (e.g., as solid or solution) directly into a bulk cementitious slurry that forms the product. As another example, the surface modifier can be added in a separate solution with water, air bubbles, and cementitious particles that serve as additive to the main cementitious slurry, where the separate solution is then added to the main cementitious slurry. |
| 9,540,810 | Pregelatinized starch with mid-range viscosity, and product, slurry and methods related thereto | 1/10/2017 | SANG, Yijun; LEE, Chris C.; CHAN, Cesar; SONG, Weixin David | Disclosed are product (e.g., panels), slurry, and methods relating to a pregelatinized starch having a mid-range viscosity (i.e., from about 20 centipoise to about 700 centipoise), and an extruded pregelatinized starch. |
| D776302 | Drywall shadow molding | 1/10/2017 | BAKER, Chris C.; LEHANE, James J.; GULBRANDSEN, Peder J. | CLAIM The ornamental design for a drywall shadow molding, as shown and described. |
| 9,534,383 | Ceiling Panel System | 1/3/2017 | UNERKOFLER, Abraham M.; GULBRANDSEN, Peder J.; PAULSEN, Mark R. | A panel assembly for a suspended ceiling comprising a sheet metal body and support brackets attached to the body, the sheet metal body having a rectangular generally planar face portion, a side portion along each of four edges of the face portion, the side portions extending upwardly from the face portion edges to side portion edges, and flanges extending inwardly from the side portion edges such that the flanges overlie and are spaced from the face portion, the side portions intersecting at corners of the panel assembly and the flanges being adjacent the corners, a hanger bracket associated with each corner abutting and fixed to the flanges adjacent each corner, the hanger bracket having at least one hole for attaching a suspension wire at a location spaced from said each corner a distance substantially greater than a width of the flanges adjacent said each corner. |
| 9,598,864 | Suspension System For Flat Drywall Ceiling | 3/21/2017 | HULKA, Samuel David; LEHANE, James J.; GULBRANDSEN, Peder J. | A suspended drywall ceiling grid construction comprising a plurality of uniformly spaced parallel sheet metal support bars, a plurality of spaced grid tees carried on lower sides of the support bars, the support bars having regularly spaced centers for engaging and supporting grid tee reinforcing bulbs, the centers and grid tees being constructed and arranged to present lower faces of flanges of the grid tees in a common plane, the support bars having intermediate centers between said regularly spaced centers for receiving butt joint tees, the intermediate centers and butt joint tees being constructed and arranged to present lower faces of flanges of the butt joint tees in a plane a predetermined distance above the common plane. |
| 9,605,158 | Polystyrene Foam Products With Improved Adhesion And Water Resistance And Methods Of Making The Same | 3/28/2017 | DUBEY, Ashish; PENG, Yanfei | A water-resistant preformed polystyrene foam product with improved adhesive properties is provided. A water-resistant coating for preformed polystyrene products is also provided. The coating can be formulated as a sprayable composition and is easy to apply. Methods for making the coating formulations and water-resistant preformed polystyrene products are also provided. |
| 9,579,822 | Slurry distribution system and method | 2/28/2017 | LI, Alfred, LEE, Chris C., NELSON, Chris, CHAN, Cesar, WITTBOLD, James, SONG, Weixin David | A slurry distributor for use in a continuous manufacturing process includes an inlet opening and a shaped duct adapted to receive a flow of slurry provided at the inlet opening. The shaped duct has a parabolic guide surface adapted to redirect the flow of slurry. An outlet opening in fluid communication with the shaped duct is adapted to discharge the flow of slurry from the slurry distributor. |
| 9,567,758 | Joint compound tool including opener | 2/14/2017 | SHELDON, Joshua, BERNICKE-GRUSSING, Nancy L. | A joint compound tool including a body having a first end, an opposing second end and a handle. A blade portion is attached to the first end of the body and a lid opener is movably attached to the second end of the body, where the lid opener is movable between a storage position adjacent to the handle and an operative position away from the handle. |
| 9,623,586 | LIGHTWEIGHT, REDUCED DENSITY FIRE RATED GYPSUM PANELS | 4/18/2017 | YU, Qiang; VEERAMASUNENI, Srinivas; SONG, Weixin D.; LUAN, Wenqi | A reduced weight, reduced density gypsum panel that includes high expansion vermiculite with fire resistance capabilities that are at least comparable to (if not better than) commercial fire rated gypsum panels with a much greater gypsum content, weight and density. |
| 9,616,591 | SLURRY DISTRIBUTOR, SYSTEM AND METHOD FOR USING SAME | 4/11/2017 | LI, Alfred; LEE, Chris C.; CHAN, Cesar; SCHENCK, Ronald E.; SONG, Weixin D.; LORING, Curtis B.; WITTBOLD, James R.; RAGO, William J.; NELSON, Christopher Robert | A slurry distribution system can include a feed conduit and a distribution conduit in fluid communication therewith. The feed conduit can include a first feed inlet and a second feed inlet disposed in spaced relationship thereto. The distribution conduit can extend generally along a longitudinal axis and include an entry portion and a distribution outlet in fluid communication therewith. The entry portion is in fluid communication with the first and second feed inlets of the feed conduit. The distribution outlet extends a predetermined distance along a transverse axis, which is substantially perpendicular to the longitudinal axis. The slurry distribution system can be placed in fluid communication with a gypsum slurry mixer adapted to agitate water and calcined gypsum to form an aqueous calcined gypsum slurry. |
| 9,624,131 | FREEZE-THAW DURABLE GEOPOLYMER COMPOSITIONS AND METHODS FOR MAKING SAME | 4/18/2017 | DUBEY, Ashish; CHITHIRAPUTHIRAN, Sundararaman | A freeze-thaw durable, dimensionally stable, geopolymer composition including: cementitious reactive powder including thermally activated aluminosilicate mineral, aluminate cement preferably selected from at least one of calcium sulfoaluminate cement and calcium aluminate cement, and calcium sulfate selected from at least one of calcium sulfate dihydrate, calcium sulfate hemihydrate, and anhydrous calcium sulfate; alkali metal chemical activator; and a freeze-thaw durability component selected from at least one of air-entraining agent, defoaming agent, and surface active organic polymer; wherein the composition has an air content of about 4% to 20% by volume, more preferably about 4% to 12% by volume, and most preferably about 4% to 8% by volume. The compositions are made from a slurry wherein the water/cementitious reactive powder weight ratio is 0.14 to 0.45:1, preferably 0.16 to 0.35:1, and more preferably 0.18 to 0.25:1. Methods for making the compositions are also disclosed. |
| 9,650,305 | HARD WATER FOAMING AGENTS AND METHODS FOR GYPSUM BOARD PRODUCTION | 5/16/2017 | WANG, Xuming; SUCECH, Steven W. | Compositions and methods for reducing the impact of hard water on gypsum board foaming are provided. The compositions include adding a foam to water and a calcined slurry. The foam includes water, dispersed air and a surfactant. Surfactants for use include a hydrophobic portion having an alkyl chain length distribution of about 20% to about 60% C8 chains; about 20% to about 60% C10 chains; about 14% to about 36% C12 chains and about 2% to about 20% C14 chains and also having a hydrophilic portion having about 0.2 to 3.0 ethoxy groups. |
| 9,656,916 | DIMENSIONALLY STABLE GEOPOLYMER COMPOSITION AND METHOD | 5/23/2017 | DUBEY, Ashish | A method for making geopolymer cementitious binder compositions for cementitious products such as concrete, precast construction elements and panels, mortar, patching materials for road repairs and other repair materials, and the like is disclosed. The geopolymer cementitious compositions of some embodiments are made by mixing a synergistic mixture of thermally activated aluminosilicate mineral, calcium sulfoaluminate cement, a calcium sulfate and a chemical activator with water. |
| 9,643,888 | DIMENSIONALLY STABLE GEOPOLYMER COMPOSITION AND METHOD | 5/9/2017 | DUBEY, Ashish | A method for making geopolymer cementitious binder compositions for cementitious products such as concrete, precast construction elements and panels, mortar and repair materials, and the like is disclosed. The geopolymer cementitious compositions of some embodiments are made by mixing a synergistic mixture of thermally activated aluminosilicate mineral, calcium aluminate cement, a calcium sulfate and a chemical activator with water. |
| 9,663,948 | FREE SPAN CEILING GRID SYSTEM | 5/30/2017 | LEHANE, James J.; TEDESCO, Lee M.; GULBRANDSEN, Peder J.; WILLI, John M.; LEAHY, Donald J.; UNDERKOFLER, Abraham M.; STRAIGHT, Yelena; ODONNELL, Michael | Components for constructing a ceiling grid across a span free of or with a limited number of suspension wires including main runners with a relatively high moment of inertia secured at their ends with brackets to wall moldings on opposing walls. |
| 9,637,918 | CROSS RUNNER TO MAIN RUNNER ANCHOR CLIP | 5/2/2017 | CARBAJAL, Victor | A roll formed sheet metal main runner and a roll formed sheet metal cross runner intersecting the main runner from one side at a slot in the main runner, the cross runner having a sheet metal end connector extending through the slot, the connector having a lateral projection with a reawardly facing edge and a hole reaward of the projection at which the connector is fixed to the cross runner, a stamped sheet metal anchor clip with a tongue projecting through the slot and a base connected to the tongue on a side of the main runner opposite the cross runner, the tongue having a relief area aligned with the connector projection, an edge abutting the connector projecting edge, and a hole aligned with the connector hole, and a fastener through both of said connector and tongue holes securing said clip to said connector. |
| 9,682,887 | COMPOSITIONS AND METHODS FOR REDUCING LIME BUCKING IN PLASTER PRODUCTS | 6/20/2017 | GRUSSING, Jeffrey F.; EMAMI, Samar; RISCHE, Trevor S. | Methods of treating lime bucking in a plaster slurry are described. The method involves providing a slurry exhibiting lime bucking having a cone penetration of less than 10 mm at a consistency of 60 cc, comprising: water; calcium sulfate hemihydrate; and hydrated lime; and mixing an effective amount of a dispersant comprising a low intensity dispersant into the slurry so that the cone penetration increases and wherein the cone penetration is 10 mm or more at 10 minutes after addition of the dispersant at a consistency of 60 cc; and applying the plaster slurry containing the dispersant to a substrate. Veneer plaster dry component mixtures having reduced lime bucking when made into a slurry containing a low intensity dispersant, or hydrated lime coated with wax or a dibenzoate plasticizer are also described. |
| 9,683,143 | JOINT FINISHING ADHESIVE | 6/20/2017 | NEGRI, Robert H.; LI, Donghong; BURY, Rafael | Provided is an adhesive composition suitable for fortifying panel joints in construction, the adhesive composition comprising a polymeric binder, filler and thickener, wherein the binder is selected from acrylic acid polymers, acrylic acid copolymers, alkyds, polyurethanes, polyesters, epoxies, and combinations thereof and wherein the viscosity of the composition is the range from 100 to 200 Bradbender Units and density is in the range from about 7.5 lbs/gal to about 10 lbs/gal. Methods of using the adhesive composition in wall assembly are provided as well. |
| 9,708,220 | CEMENTITIOUS PATCH COMPOSITIONS AND METHODS | 7/18/2017 | LETTKEMAN, Dennis M.; WILSON, John W.; BEDWELL, William K.; KALIGIAN, Raymond A. | A cementitious hydrating patch composition is provided with improved strength and abrasion resistance. The patch comprises Portland cement in the amount from 2% to 10%, Calcium Sulfate Hemihydrate in the amount from 2% to 30%, Gypsum in the amount from 0% to 15%, Calcium Aluminate Cement in the amount from 15% to 40%, Calcium Carbonate in the amount from 0% to 40%, at least one filler in the amount from 1% to 30%; and at least one binder in the amount from 10% to 40%, wherein all amounts are based on dry weight of the composition. Methods of preparing and using the patch composition are provided as well. |
| 9,700,861 | SLURRY MIXER GATE HAVING ENHANCED EXTRACTOR PORTS | 7/11/2017 | SCHENCK, Ronald E.; WITTBOLD, James R. | A discharge gate is provided for delivering a mixed slurry from a gypsum slurry mixer, and includes a first extractor port configured for generating a first density slurry for a first gypsum layer, and a second extractor port configured for generating a second density slurry for a second gypsum layer. A channel is defined by a front panel and a side panel of the discharge gate for delivering the first and second density slurries from the slurry mixer. The first extractor port extends semi-tangentially from the front panel of the discharge gate, and is connected in fluid communication with the front panel via the channel and a first slurry passageway disposed within the first extractor port for delivering the first density slurry. |
| 9,694,332 | SLURRY MIXER DISCHARGE GATE ADAPTER WITH TRANSITIONING CROSS-SECTIONAL GEOMETRY | 7/4/2017 | BROWN, Stanley C.; JOHNSON, Steven; SHUMWAY, Phillip; WITTBOLD, James R. | A discharge gate for a gypsum slurry mixer is provided, and includes a gate adapter having an inlet opening configured for receiving the slurry, and an outlet opening configured for delivering the slurry to a dispensing device. The gate adapter has two different transitioning cross-sectional geometries at opposite ends. Specifically, the gate adapter includes an inlet section having a quadrilateral inlet opening; an outlet section having a substantially circular outlet opening; and a transition section sandwiched between the inlet and outlet sections. |
| 9,731,879 | CONTAINER LID WITH FUNCTIONAL ADDITIVE CHAMBERS | 8/15/2017 | SHELDON, Joshua D.; STEVENS, JR., Richard B. | A joint compound assembly is provided, including a main container with a base joint compound, and a container lid constructed and arranged for closing the main container, and having at least one sealed compartment enclosing a joint compound additive. |
| 9,745,222 | APPARATUS AND METHODS FOR PRODUCING GYPSUM WALLBOARD | 8/29/2017 | EVERSOLE, Leslie; DELLANGELO, Scott; LASH, Jason | An apparatus for production of a gypsum product is provided which comprises a conveyer comprising a conveyer belt and means for rotating the conveyer belt; means for forming a gypsum product; and at least one laser scanner positioned over the conveyer belt at the location where the scanner scans at least one edge of the gypsum product which is at least partially set; and the laser scanner is in communication with a processor. Methods for forming a gypsum product with the apparatus are provided as well. |
| 9,719,264 | PARTITION MOLDING | 8/1/2017 | McCARTNEY, Nicholas; LEHANE, James J. | A partition molding of a metal strip having a right angle cross-section with a vertical leg and a horizontal leg joined at a corner, the horizontal leg having a hem distal from the corner and projecting above a main part of the horizontal leg, the vertical leg having a series of regularly spaced holes for reception of drywall screws used to attach the molding to a wall whereby contact force between the molding and an overlying ceiling is concentrated at the hem and a reaction force can create a moment that serves to urge a lower edge of the vertical leg against a wall on which the molding is mounted. |
| 9,738,796 | ACOUSTICALLY TRANSPARENT COATING | 8/22/2017 | BURY, Rafael; LI, Donghong; HULKA, Samuel D. | A formulation for an acoustically transparent coating for use on an acoustical substrate comprising a water dispersible binder and relatively large filler particles, and characterized by a high pigment to volume concentration, high viscosity, high shear thinning, and fast drying to enable the formulation to be sprayed in droplets that retain their identity when in mutual contact. |
| 9,777,478 | DRYWALL SHEET END JOINT | 10/3/2017 | HULKA; Samuel D.; GULBRANDSEN; Peder J. | A suspended ceiling comprising SUSPENDED metal runners in a horizontal plane, the runners each having a horizontal flange having an effective vertical thickness, a plurality of rectangular drywall sheets aligned crosswise to the runners and screwed to the flanges with ends of the drywall sheets forming butt joints midway between adjacent runners, boards overlying butt joints and adjacent flanges, the boards being substantially stiffer than the drywall sheets, whereby the drywall sheet ends are drawn up towards an upper level of the flanges when screwed against the overlying board so that a pseudo taper is formed on the drywall sheet ends. |
| 9,783,998 | NONWOVEN JOINT TAPE HAVING LOW MOISTURE EXPANSION PROPERTIES AND METHOD FOR USING SAME | 10/10/2017 | NEILL, Paul H.; IMMORDINO, Salvatore C.; STEVENS, Richard B.; MILLER, Charles J. | The invention is directed to a joint tape for finishing a joint between boards comprising a nonwoven substrate that does not swell substantially in the presence of water. The invention further provides a method of finishing a joint between boards comprising (i) applying a joint tape of the invention to a joint between boards by embedding the joint tape in a first coat of joint compound, (ii) applying a second coat of joint compound over the tape, wherein step (ii) is carried out before the joint tape and joint compound applied in step (i) have substantially dried, and optionally (iii) applying a third fill or finish coat of joint compound over the tape, wherein step (iii) is carried out before the joint tape and second coat have substantially dried. |
| 9,790,692 | JOINT COMPOUND TOOL | 10/17/2017 | BERNICKE-GRUSSING; Nancy L.; SHELDON, Joshua | A joint compound tool including a handle having a first end and a second end where a blade portion is attached to the first end and a mixing member is attached to the second end. The handle, the blade portion and the mixing member each have substantially the same thickness where the mixing member is used to mix joint compound and the blade is used to apply the joint compound to a surface. |
| 9,790,686 | TRIANGULAR STUD SHAFT WALL SYSTEM | 10/17/2017 | SAMUELS, Matthew D. | A shaft wall assembly system including triangular shaped steel studs with one or more layers of wall board secured to one side of the triangular shaped steel studs. The triangular steel studs preferably rest in a notched floor runner and a notched ceiling runner. The one or more layers of wall board are then directly attached to a flat side of the triangular stud with properly sized steel screws. This system will be useful as a shaft wall system or in locations where attachment of wall board to both sides of a wall system is not feasible. |
| 9,796,635 | LARGE DIAMETER SLAG WOOL, COMPOSITION AND METHOD OF MAKING SAME | 10/24/2017 | LUAN, Wenqi; BROWN, Martin; KELLER, Tanya; HILL, Mike; BOGEN, Scott A.; FIGI, Carlos; FRANK, William | The disclosure provides a slag wool composition including about 60 to about 80 wt. % blast furnace slag and about 20 to about 40 wt. % basalt, based on the total weight of the inorganic raw materials, wherein the composition has an A/B ratio in a range of about 1.20 to about 1.70. The disclosure further provides a slag wool produced using the slag wool composition of the disclosure, wherein the slag wool has a fiber diameter in a range of about 4.0 microns to about 10.0 microns. The disclosure further provides a method for the manufacture of slag wool. |
| 9,802,866 | LIGHT WEIGHT GYPSUM BOARD | 10/11/2017 | YU, Qiang; SONG, Weixin David | This invention provides low density gypsum products. This invention also provides a method of making the low density gypsum products. |
| 9,821,281 | Eductor Based Mixer For Mixing Stucco And Water | 11/21/2017 | SINHA RAY, Suman; STOCCO, Louis P.; NATESAIYER, Kumar C.; SCHENCK, Ronald E. | A mixing assembly includes a main flow conduit having an inlet end and an opposite outlet, a source of pressurized air at the inlet end, a container of stucco in fluid communication with the flow conduit, and a source of water in fluid communication with the flow conduit between the outlet and the container. The pressurized air draws stucco from the container into the flow conduit, and also draws water into the flow conduit to form an atomized slurry. |
| 9,828,441 | METHOD OF PREPARING PREGELATINIZED, PARTIALLY HYDROLYZED STARCH AND RELATED METHODS AND PRODUCTS | 11/28/2017 | SANG, Yijun; SONG, Weixin D.; CHAN; Cesar; LEE, Chris C. | Disclosed are methods relating to an extruded pregelatinized, partially hydrolyzed starch prepared by mixing at least water, non-pregelatinized starch, and acid to form a starch precursor. The acid can be a weak acid that substantially avoids chelating calcium ions or a strong acid in a small amount. In the method, pregelatinization and acid-modification of the starch precursor occurs in one step in an extruder. Also disclosed are methods of preparing board using the starch prepared according to the methods, as well as starches and boards prepared by various methods of the invention. |
| 9,840,066 | MICROSTRUCTURE FEATURES OF GYPSUM WALLBOARD MADE WITH HIGH STARCH AND HIGH DISPERSANT LEVEL | 12/12/2017 | QIANG, Yu | This invention provides gypsum wallboards with a unique microstructure where the walls between voids are enhanced in thickness and strength to substantially improve the strength and handling properties of the wallboards. A method of making lightweight gypsum wallboards is also provided. |
| 9,850,407 | ENHANCED ADHESIVE COMPOSITION FOR RE-ENFORCING JOINTS IN GYPSUM PANEL CONSTRUCTION | 12/26/2017 | MOYER, JR., Kevin W.; HARGROVE, Pamela L.; BURY, Rafael | This invention provides flexible adhesive compositions which can be used instead of joint reinforcement tape for securing a joint seam between abutting panels. Methods using the compositions are provided as well. |
| 9,849,649 | MAGNET RECEPTIVE PANELS AND METHODS | 12/26/2017 | IMMORDINO, Salvatore; IMMORDINO, Vittorio A.; PELOT, David D.; MOYER, JR., Kevin W.; ROSENSTIEL, Terry L. | Provided are building panels comprising at least one magnet receptive element, methods for making such panels, and kits and methods for attaching objects to a panel without nails or screws. |
| 9,879,424 | TORSION SPRING PANEL BARS AND CONSTRUCTION METHOD | 1/30/2018 | UNDERKOFLER, Abraham M.; GULBRANDSEN, Peder J. | A suspended ceiling system comprising a plurality of spaced parallel main runners, a plurality of spaced parallel panel support bars intersecting and being fixed to the main runners at an oblique angle, a plurality of rhomboidal panels having angles equal to said oblique angle suspended from the bars, the panels having nominal width dimensions that are equal to or whole fractions of a distance between adjacent runners, the panels having opposed first edges extending perpendicularly to a direction in which a width of a panel is measured and opposed second parallel edges extending in a direction that is at said oblique angle relative to a direction that the first edges extend, the second panel edges underlying respective bars and having attached torsion springs received in slots formed in the bars. |
| 9,890,082 | DIMENSIONALLY STABLE GEOPOLYMER COMPOSITION AND METHOD | 2/13/2018 | DUBEY, Ashish | A method for making geopolymer cementitious binder compositions for cementitious products such as concrete, precast construction elements and panels, mortar, patching materials for road repairs and other repair materials, and the like is disclosed. The geopolymer cementitious compositions of some embodiments are made by mixing a synergistic mixture of thermally activated aluminosilicate mineral, calcium sulfoaluminate cement, a calcium sulfate and a chemical activator with water. |
| 9,896,807 | ACOUSTICAL CEILING TILE | 2/20/2018 | ENGLERT, Mark A.; FRANK, William A. | An acoustical tile including: 8 to 25 wt % mineral wool, 9 to 15 wt % starch binder, 9 to 15 wt % cellulosic fiber, wherein preferably the cellulosic fiber is newsprint, and 40 to 65 wt % perlite, wherein the weight ratio of the starch to the cellulosic fiber is 0.6 to 1.3:1; and a process for making the acoustical tile. |
| 9903116B2 | ACOUSTICAL GYPSUM WALLBOARD | 2/27/2018 | SINHA RAY, Suman | This invention provides acoustical building panels and methods for imparting the acoustical property to wallboard with help of a compliant coating. |
| 9909718B2 | MULTIPLE-LEG DISCHARGE BOOT FOR SLURRY DISTRIBUTION | 3/6/2018 | WITTBOLD, James; LI, Alfred C.; LEE, Chris C.; CHAN, Cesar; RAGO, William; SONG, Weixin D. | A multi-leg discharge boot can include an inlet conduit and first and second outlet conduits separated by a junction portion. The inlet conduit includes an entry segment, a transition segment and a heel portion disposed therebetween. The inlet conduit can include an inlet end and a junction end. A junction portion is disposed at the junction end of the inlet conduit between first and second junction openings. The junction portion includes a substantially planar wall region that is substantially perpendicular to a main flow discharge axis |
| 9909312B2 | FREE SPAN CEILING GRID SYSTEM | 3/6/2018 | LEHANE, James J.; TEDESCO; Lee M.; GULBRANDSEN, Peder J.; WILLI, John M.; UNDERKOFLER, Abraham M.; STRAIGHT, Yelena; ODONNELL, Michael | Components for constructing a ceiling grid across a span free of or with a limited number of suspension wires including main runners with a relatively high moment of inertia secured at their ends with brackets to wall moldings on opposing walls. |
| 9909310B2 | MINERAL FIBER BASED CEILING TILE | 3/6/2018 | FRANK, William A.; LANGDON, Matthew T.; LUAN, Wenqi; BROWN, Martin W. | An acoustical tile having a wet laid mineral fiber basemat, a non-woven porous fiberglass veil adhered to the basemat and covered with a light reflecting air permeable coating, at least 90% of the weight of the basemat comprising mineral wool and binder, a weight of the binder being less than 1/11 of the weight of the mineral fiber, the basemat having a density of between about 11.4 and about 14.2 lbs/cubic foot, the mineral fiber having an average diameter of between 4.5 and 8.3 microns, the composite of the basemat, veil and coating exhibiting good NRC and CAC performance values. |
| 9919969B2 | COATED BUILDING PANELS AND ARTICLES CONTAINING CALCIUM SULFATE HEMIHYRDATE | 3/20/2018 | YEUNG, Lee K.; GRUSSING, Jeffrey F.; BOROVKA, Christopher J. | A method of finishing an interior wall includes the steps of preparing a substrate of building panels comprising gypsum, cement or combinations thereof, said substrate having a surface, followed by applying a coating to the substrate, said coating comprising 1-30% by weight of a latex emulsion binder, 30-80% by weight calcium sulfate hemihydrate, up to about 8% by weight of a set inhibiting agent and 20-60% by weight water. |
| 9920524B2 | TRIM STRIP SYSTEM FOR USE WITH UNDERHUNG CEILING PANELS | 3/20/2018 | UNDERKOFLER, Abraham M.; GULBRANDSEN, Peder J.; PAULSEN, Mark R. | In combination, extruded aluminum trim strips joined end-to-end and a splice plate, the trim strips together, the trim strip cross-sections including a web and a pair of opposed angles, the angles and web forming a track for receiving a mid-section of the splice plate with a close sliding fit, the splice plate having lever tabs at opposite ends, notches at sides of the plate, the plate being disposed in the tracks of both lengths of trim strips, the lever tabs and associated edges of the lever tabs formed by the notches being outside of the tracks, the associated edge being arranged in a locking manner with outer surfaces of the angles as a result of the lever tabs being bent in place towards the web. |
| 9920525B1 | ACOUSTICAL BAFFLE PANEL SYSTEM | 3/20/2018 | UNDERKOFLER, Abraham M.; GULBRANDSEN, Peder J. | An acoustical baffle assembly comprising an elongated rigid upper carrier, a rigid panel supported on the carrier and a plurality of clips attaching the panel on the carrier at a plurality of locations along the length of the carrier, the clips each being clinched on an upper edge of the panel and being engaged with the carrier. |
| 9,944,443 | WATER SOLUBLE PACKAGE FOR DELIVERY OF ADDITIVES FOR POWDERED COMPOSITIONS | 4/7/2018 | SHELDON, Joshua D.; BERNICKE-GRUSSING, Nancy L.; GRUSSING, Jeffrey F.; IMMORDINO, Salvatore C.; KINCAID, Tyler | A joint compound system is provided including a main container of base joint compound; and an additive container isolated from the base joint compound and housing at least one and preferably multiple water soluble additive packages constructed and arranged so that the additive packages are protected from exposure to moisture prior to their ultimate mixing with the base joint compound. |
| 9,938,718 | ARCHED ISLAND CEILING USEFUL IN OPEN PLENUM | 4/10/2018 | UNDERKOFLER, Abraham M. | An arched island ceiling system comprising a pair of arcuate frame members, metal panels, and clips for supporting the panels on the frame members, the frame members having a generally rectangular cross-section, the clips having a saddle configuration including a seat and legs depending from opposite sides of the seat and being proportioned to straddle the frame member, lower ends of the legs having feet engageable with the underside of inwardly extending flanges of sides of the metal panels. |
| 9,944,556 | COMPOSITIONS WITH SYNTHETIC GYPSUM AND METHODS | 4/17/2018 | LETTKEMAN, Dennis Mark; WILSON, John Wesley; CLOUD, Mike L.; BALL, Brian K.; KALIGIAN, Raymond A.; BLACKBURN, David | DTPA-coated synthetic calcined gypsum is provided with alpha-like properties and obtained by spray-coating the synthetic caclined gypsum with DTPA. Cementitious compositions comprising DTPA-coated synthetic calcined gypsum and low water demand are provided as well. Methods for controlling an open time of a cementitious slurry by increasing or decreasing the amount of DTPA-coated synthetic calcined gypsum in the slurry are provided as well. |
| 9,945,119 | METHODS FOR MAKING GYPSUM BOARDS WITH POLYMER COATING AND GYPSUM BOARDS MADE BY THE METHOD | 4/17/2018 | ALDABAIBEH, Naser; SINHA RAY, Suman | Methods for making a gypsum board provided with a latex polymer coating layer having a sufficiently low glass transition temperature, a less dense gypsum core layer, and a relatively denser layer of gypsum between the less dense gypsum core layer and the latex polymer coating layer and a gypsum board made by the method. |
| 9,950,957 | LIGHT WEIGHT GYPSUM FIBER PANEL SUITABLE FOR USE AS ROOF COVER BOARD | 4/24/2018 | XU, Yufeng; STIVENDER, Eugene S. | A roof cover board made from a mixture of 30-60% stucco; 20-50% perlite; 10-30% cellulose fiber; 3-20% starch; and siloxane. Also disclosed is a stucco-free roof cover board made from a mixture of 30-60% perlite, 30-60% cellulose fiber, 5-25% starch; and siloxane. Also disclosed are meth ods for making same. |
| 9,964,942 | System and method for manufacturing cementitious boards with on-line board measurement | 5/8/2018 | NELSON, Robert; PAULY, Christopher Mark; WHITTINGTON, Charles; ROWE, Andrew | Embodiments of a system and a method for continuously measuring cementitious board during the continuous manufacture thereof can be used in connection with the manufacture of various cementitious products, including gypsum wallboard, for example. Embodiments of a system and a method for continuously measuring cementitious board during its continuous manufacture can be used online in a continuous manufacturing process to effectively determine the degree to which cementitious slurry has set (e.g., expressed as percent hydration) at a predetermined location, such as, near a cutting station, for example. A height measuring system can be used to determine the relative amount the cementitious board sags as it passes over an unsupported span disposed between the forming station and the cutting station and to correlate the measured sag distance with a value of percent hydration of the cementitious slurry of that particular portion of the cementitious board. |
| 9,975,808 | Ultra-light cementitious compositions and related methods | 5/22/2018 | LETTKEMAN, Dennis Mark; WILSON, John Wesley; BEDWELL, William Kelly; MILLER, Gary Franklin; KALIGIAN, Raymond A. | An ultra-light, pourable, self-drying cementitious product with improved density control and ultra-low water demand is provided. Compositions and methods for making the products are provided as well, including compositions and methods with ultra-low water demand. |
| 9,983,574 | Systems and methods for controlling a conveyor system during product changeovers | 5/29/2018 | DELLANGELO, Scott M.; WYKOFF, Robert | A system is provided for controlling a line speed of a conveyor belt of a conveyor system during product changeovers in a wallboard production line. A central control module controls operation of a position sensor and a database. The position sensor is located on top of a conveyor table for providing positional information of a slurry head formed in front of a forming plate of the conveyor system. A position detection module receives a position signal from the position sensor, and determines whether the slurry head is located within a predetermined distance relative to the position sensor based on the position signal. A speed adjustment module regulates the line speed of the conveyor belt based on the position signal. |
| 9,994,484 | Fast setting portland cement compositions with alkali metal citrates and phosphates with high early-age compressive strength and reduced shrinkage | 6/12/2018 | PEREZ-PENA, Marianela | A method of making a rapid setting composition for cement boards is disclosed. Compositions including a hydraulic cement preferably portland cement, an alkali metal citrate such as tripotassium citrate, and a phosphate such as sodium trimetaphosphate, with optional gypsum, and no alkanolamine accelerant, and no fly ash based cement. An interaction between the alkali metal citrate and the phosphate increases the effectiveness of accelerating reactions of the portland cement without need for an alkanolamine accelerant, even in the presence of gypsum. This allows unexpected quick setting and increased early-age compressive strength without shrinkage in the cement board compositions. |
| 9,993,837 | nozzle for sealant applicator having application enhancing formation | 6/12/2018 | ULLETT, James M. | A nozzle is provided configured for applying sealant to a construction panel joint. The nozzle includes a nozzle body having a first, supply end, and a second, outlet end opposite the supply end, the body defining an internal passageway. Also included on the nozzle is at least one tooling formation located at the outlet end and constructed and arranged for tooling a bead of sealant dispensed out the passageway from the outlet end. |
| 9,999,989 | SLURRY DISTRIBUTOR WITH A PROFILING MECHANISM, SYSTEM, AND METHOD FOR USING SAME | 6/19/2018 | RAGO, William J.; WITTBOLD, James | A slurry distributor can include a distribution conduit and a profiling mechanism. The distribution conduit extends generally along a longitudinal axis and includes an entry portion and a distribution outlet in fluid communication with the entry portion. The distribution outlet extends a predetermined distance along a transverse axis, which is substantially perpendicular to the longitudinal axis. The distribution outlet includes an outlet opening having a width, along the transverse axis, and a height, along a vertical axis mutually perpendicular to the longitudinal axis and the transverse axis. The profiling mechanism includes a profiling member in contacting relationship with the distribution conduit and movable over a range of travel such that the profiling member is in a range of positions over which it is in increasing compressive engagement with a portion of the distribution conduit adjacent the distribution outlet to vary the shape and/or size of the outlet opening. |
| 10,006,199 | TRIM STRIP SYSTEM FOR USE WITH UNDERHUNG CEILING PANELS | 6/26/2018 | UNDERKOFLER, Abraham M.; GULBRANDSEN, Peder J.; PAULSEN, Mark R. | In combination, extruded aluminum trim strips joined end-to-end and a splice plate, the trim strips together, the trim strip cross-sections including a web and a pair of opposed angles, the angles and web forming a track for receiving a mid-section of the splice plate with a close sliding fit, the splice plate having lever tabs at opposite ends, notches at sides of the plate, the plate being disposed in the tracks of both lengths of trim strips, the lever tabs and associated edges of the lever tabs formed by the notches being outside of the tracks, the associated edge being arranged in a locking manner with outer surfaces of the angles as a result of the lever tabs being bent in place towards the web. |
| 10,011,045 | Slurry mixer gate with enhanced flow and foaming geometry | 7/3/2018 | WITTBOLD, James R.; LEE, Chris C. | A discharge gate is provided for a gypsum slurry mixer, and includes a lower member having an inlet opening configured for receiving the slurry, and an outlet opening configured for delivering the slurry to a dispensing device. An upper member is attached to the lower member, at least one of the upper and lower members having at least one opening for accommodating insertion of an injection port for introducing the foam to the slurry. A cavity is configured for mixing the foam and slurry, and is defined by inner surfaces of the lower member and the upper member. |
| 10,012,348 | Alternative core material based vacuum insulated panels | 7/3/2018 | SINHA RAY, Suman; RAO, Ajith | A vacuum insulated panel (VIP) and a method of manufacturing a VIP includes a rigid core material having high insulation and low conductivity properties. The rigid core may be made of an inorganic material that effectively mimics a porous silica core material. The core material includes large particles of an inorganic material having a diameter in a range of 10 ?m to 50 ?m. A portion of these large particles may be ground into small particles having a diameter of less than 1 ?m. The small particles are mixed with a portion of the large particles to form a core material which is then mixed with a fiber skeleton and compacted under vacuum along with a fibrous skeleton for structure. The resulting structure provides a porosity ranging from 10 nm to 1 ?m in diameter. |
| 10,011,987 | MAIN TEE SPLICE PLATE | 7/3/2018 | LEHANE, James J.; UNDERKOFLER, Abraham M. | A metal splice plate for joining the ends of suspended ceiling main tees of different heights and load carrying capacity, the plate having a bottom edge lying along a straight line and having a tall section adjacent one end and a short section adjacent an end opposite said one end, a formation at each of said ends providing indicia for locating the formation on the respective section on an end of a main tee of a corresponding height longitudinally at a desired position relative to and spaced from a cross runner slot on the main tee of corresponding height. |
| 10,023,496 | NO FIBER CALCINATION OF GYPSUM FOR GYPSUM FIBERBOARD | 7/17/2018 | XU, Yufeng | The present disclosure relates to no fiber calcined gypsum and methods of making the same using a multi-stage (typically two-stage) calcination process. The first stage is a high temperature calcination and nucleation stage. The second stage is a lower temperature calcination and crystal growth stage which produces product slurry containing calcined gypsum particles having large, acicular calcined gypsum crystal morphology for use in making gypsum fiberboard. |
| 10,036,163 | SEISMIC PERIMETER ATTACHMENT CLIP | 7/31/2018 | PAULSEN, Mark R. | Seismic perimeter attachment clip for attaching a grid runner to wall molding comprising sheet metal base and slide elements, the base having a tab constructed and adapted to be secured with a screw to the wall molding and having a projection extending perpendicularly from the base, the slide being constructed and adapted to be attached to a grid runner, the base and slide providing a cam surface and a cam follower surface, the surfaces being mutually indexable to a home position, the cam surface being configured to raise the slide and an attached grid runner from an elevation at the home position when the slide is extended from the tab in response to longitudinal movement of the attached grid runner whereby an end of the attached grid runner is elevated above a lower flange of the wall molding as the end passes over a distal edge of the lower flange. |
| 10,040,725 | LIGHTWEIGHT FOAMED CEMENT, CEMENT BOARD, AND METHODS FOR MAKING SAME | 8/7/2018 | PEREZ PENA, Marianela | Disclosed is a foamed cementitious composition which limits or eliminates aggregate, especially porous lightweight aggregate and uses a lower than usual water to cementitious composition weight ratio. The stable cementitious foam mixtures may be employed to make cement boards and other cement products. The foamed cementitious composition was made with additions of PVOH foaming stabilizer and surfactant foaming agents to make foam water or by entrain air into cementitious slurry mixtures. The cementitious mixtures have a limited amount or preferably no perlite and no lightweight aggregate. The resulting foamed mixture had foam bubbles with size in the range of 50 to 200 ?m. After setting the foamed cementitious composition the resulting set board has air cells with size in the range of 50 to 200 ?m. |
| 10,052,793 | SLURRY DISTRIBUTOR, SYSTEM, AND METHOD FOR USING SAME | 8/21/2018 | LI, Alfred; LEE, Chris C.; CHAN, Cesar; SCHENCK, Ronald E.; SONG, David; LORING, Curt; WITTBOLD, James; RAGO, William | A slurry distributor can include a feed conduit and a distribution conduit in fluid communication therewith. The feed conduit can include a first and second feed inlets disposed in spaced relationship to each other. The distribution conduit can extend generally along a longitudinal axis and include an entry portion and a distribution outlet in fluid communication therewith. The entry portion is in fluid communication with the first and second feed inlets of the feed conduit. The distribution outlet extends a predetermined distance along a transverse axis. The first and second feed inlets each has an opening with a cross-sectional area. The entry portion of the distribution conduit has an opening with a cross-sectional area which is greater than the sum of the cross-sectional areas of the openings of the first and second feed inlets. The slurry distributor can be placed in fluid communication with a gypsum slurry mixer. |
| 10,053,860 | GYPSUM WALLBOARD WITH REINFORCING MESH | 8/21/2018 | LI, Alfred; SANG, Yijun; SONG, David | A wallboard panel is provided, including a sheet of face paper, a first layer of gypsum composition having a first density, a web of mesh associated with the first layer of gypsum composition, a second layer of gypsum composition having a second density, the second density being lower than the first density, and a layer of backing paper. An associated method includes providing a sheet of face paper and laying same upon a moving conveyor belt, applying a first layer of gypsum composition slurry upon the sheet of face paper, applying a web of mesh upon the first layer of gypsum composition slurry, applying a second layer of gypsum composition slurry upon the web of mesh, and applying a sheet of backing paper upon the second layer of gypsum composition slurry. |
| 10,059,033 | CEMENTITIOUS SLURRY MIXING AND DISPENSING SYSTEM WITH PULSER ASSEMBLY AND METHOD FOR USING SAME | 8/28/2018 | WITTBOLD, James R.; LEE, Chris C.; RAGO, William J. | A cementitious slurry mixing and dispensing system includes a mixer, a discharge conduit, and a pulser assembly. The discharge conduit is in fluid communication with the mixer. The pulser assembly is adapted to periodically compress a portion of the discharge conduit. The pulser assembly can include a compression member adapted to contactingly engage the portion of the discharge conduit and a drive mechanism adapted to selectively move the compression member into compressing engagement with the discharge conduit such that the part of the interior wall surface underlying the compressed portion is flexed.. |
| 10,066,390 | TWO-HOUR FIRE-RATED MODULAR FLOOR/CEILING ASSEMBLY | 9/4/2018 | POSPISIL, Frank; MILLER, Gary; ULLETT, James | A floor-ceiling assembly is provided for joined upper and lower modular construction units, including a floor surface of the upper unit using structural cement panels; a floor grid including at least one floor joist and at least one beam each having an upper surface receiving said structural cement panels, a web and a lower surface. At least one connector plate is secured to the lower surface. A ceiling framework of the lower unit has at least one ceiling beam and at least one ceiling joist secured to each other, at least one of the beams is secured to the at least one connector plate. A resilient channel is secured to an underside of the ceiling framework, and a ceiling panel is secured to the resilient channel. |
| 10,066,392 | ONE HOUR FIRE RATED WOODEN FRAME MEMBERS USING LIGHTWEIGHT GYPSUM WALLBOARD | 9/4/2018 | MILLER, Gary Franklin; SWINEA, Joseph Edward; PUNATI, Naveen | A combined wooden frame support and ceiling system is provided, each support including upper and lower wooden chords and a wooden structure connecting the lower chord to the upper chord for weight bearing purposes. A gypsum wallboard batten strip is attached to the lower chord, and defining a ledge extending from each side of the lower chord. A single thickness of gypsum wallboard panels is used to create a ceiling attached to the support, each panel used to create the ceiling is made from a slurry composition including less than 5% by weight of Grade 4 vermiculite. Upon the support being assembled in the ceiling system, with a plurality of the supports, and having lengths of insulation supported by the ledges of the adjacent supports, the ceiling system resists charring by fire for at least one hour. |
| 10,076,853 | SLURRY DISTRIBUTOR, SYSTEM, AND METHOD FOR USING SAME | 9/18/2018 | WITTBOLD, James; LEE, Chris C.; LI, Alfred C.; PUNATI, Naveen; RAGO, William J.; CARRAZCO, Luis | A slurry distributor includes a feed conduit and a distribution conduit in fluid communication therewith. The feed conduit includes an entry segment with a feed inlet and a feed entry outlet in fluid communication therewith and extending along a first feed flow axis. The feed conduit includes a shaped duct having a bulb portion in fluid communication with the feed entry outlet. The feed conduit includes a transition segment in fluid communication with the bulb portion and extending along a second feed flow axis in non-parallel relationship with the first feed flow axis. The bulb portion has an area of expansion with a cross-sectional flow area that is greater than a cross-sectional flow area of an adjacent area upstream from the area of expansion. The shaped duct has a convex interior surface in confronting relationship with the feed entry outlet of the entry segment. |
| 10,099,961 | Fluorescent building product and related detection method | 10/16/2018 | KINCAID, Tyler; MILLER, Charles J. | A method of making an identifiable gypsum-based building product, includes incorporating a suitable amount of an optically identifiable marker into the product to be sensed by a conventional detecting device; applying the product with the marker in a conventional manner in the course of building construction, creating a finished building product; and analyzing the finished building product and optically detecting the presence of the marker in real time onsite. |
| 10,094,614 | Method for dewatering acoustical panels | 10/9/2018 | XU, Yufeng | The disclosure provides a method of forming an acoustical panel base mat, including providing a green board including an alkyl ether sulfate surfactant, wherein the green board includes from about 10 to about 40 wt. % solids, and dewatering the green board slurry to form a dewatered green board, wherein the dewatering comprises supplying hot air and applying a vacuum to the green board. |
| 10,112,870 | Self-desiccating, dimensionally-stable hydraulic cement compositions with enhanced workability | 10/30/2018 | WHITE, Paul, DUBEY, Ashish | Cementitious binder compositions for cementitious products including a hydraulic cement-based reactive powder blend, an inorganic flow control agent, and a metal-based dimensional movement stabilizing agent including at least one member of the group of lithium salt and lithium base, and methods for making the cementitious binder compositions. |
| 10,124,503 | BENCH TOP BOARD SCORING DEVICE | 11/13/2018 | RAGO, William J.; COCHRAN, Charles W. | A bench top board scoring device is provided, including a frame having a first end and an opposite second end, a work area defined between the first and second ends, each end having at least one leg configured for contacting a substrate. A track is connected to the frame and extends between the first end and the second end, a carriage is slidably mounted to the track for travel between the first end and the second end, and an arm has an upper surface, a pivot end pivotally connected to the carriage, and an opposite knife mount end. A knife blade is mounted to the knife mount end. Wherein the present device is constructed and arranged so that as the carriage is moved from the first end to the second end, wallboard samples placed in the work area and contacted by the knife blade receive a constant scoring force. |
| 10,150,603 | PACKAGE FOR DELIVERY OF ADDITIVES FOR POWDERED COMPOSITIONS | 12/11/2018 | SHELDON, Joshua D.; BERNICKE-GRUSSING, Nancy L.; GRUSSING, Jeffrey F.; IMMORDINO, Salvatore C.; KINCAID, Tyler; MILLER, Charles J. | A joint compound system is provided including a main container of base joint compound; and an additive container isolated from the base joint compound and housing at least one and preferably multiple additive packages constructed and arranged so that the additive packages are protected from exposure to moisture prior to their ultimate mixing with the base joint compound. |
| 10,155,692 | HYDROPHOBIC FINISH COMPOSITIONS WITH EXTENDED FLOW TIME RETENTION AND BUILDING PRODUCTS MADE THEREOF | 12/18/2018 | DUBEY, Ashish; PENG, Yanfei | Disclosed are hydrophobic finish compositions and cementitious articles made with the hydrophobic finish compositions. In some embodiments, the article is a waterproof gypsum panel surface reinforced with inorganic mineral fibers that face a flexible and hydrophobic cementitious finish possessing beneficial waterproofing properties. The waterproof gypsum panels of the invention have many uses, such as, tilebacker board in wet or dry areas of buildings, exterior weather barrier panel for use as exterior sheathing, and roof cover board having water durability and low surface absorption. The flexible and hydrophobic cementitious finish can include fly ash, film-forming polymer, silane compound (e.g., alkyl alkoxysilane), an extended flow time retention agent including either one or more carboxylic acids, salts of carboxylic acids, or mixtures thereof, and other optional additives. |
| 10,173,343 | Slurry distribution system with vibration isolation | 1/8/2019 | JONES, Frederick T.; TODD, Brad; RAGO, William J. | A cementitious slurry mixing and dispensing system includes a slurry mixer that agitates and forms aqueous cementitious slurry, a discharge conduit in communication with the mixer and forming an interior surface defining a slurry flow path to convey the slurry therethrough to an outlet, a distribution mat disposed proximally to the outlet, a vibrating plate supporting the distribution mat, an overhead bracing system from which the vibrating plate is suspended, and a plurality of support members coupled between the overhead bracing system and the vibrating plate. The vibrating plate is adapted to impart vibrational forces on the distribution mat to promote movement of the aqueous slurry. Each support member includes a rod, a hollow coupling member, and at least one resilient bushing assembly adapted to dampen the vibrational forces exerted by the vibrating plate, thereby isolating the rod and the overhead bracing system from the vibrational forces. |
| 10,174,501 | METAL BAFFLES | 1/8/2019 | UNDERKOFLER, Abraham M.; GULBRANDSEN, Peder J.; PAULSEN, Mark R.; CAROLUS, Kyle S. | Clips that engage with special top flanges on elongated U-shaped acoustical baffles. One clip form suspends the baffles from grid tees in horizontal or inclined orientations or from cables or rods. Another clip form aligns to and joins intersecting baffles. |
| 10,189,180 | Foam injection system with variable port inserts for slurry mixing and dispensing apparatus | 1/29/2019 | WITTBOLD, James; CARRAZCO, Luis | A foam injection system for use in the manufacture of cementitious products includes a foam injection body and first and second port inserts. The foam injection body defines a slurry passageway and a port passageway having a port opening in fluid communication with the slurry passageway. The first and second port inserts respectively define first and second foam passageways having first and second orifice sizes. The first and second orifice sizes are different. The first and second port inserts are adapted to removably mount to the foam injection body such that the respective foam passageway is in fluid communication with the slurry passageway via the port opening of the port passageway. One port insert can be replaced with another to readily vary the pressure of the foam passing through the particular port insert and injected into a cementitious slurry traveling through the slurry passageway. |
| 10,195,636 | AUTOMATIC DISPENSING DEVICE FOR WALLBOARD JOINT TAPING | 2/5/2019 | NEGRI, Robert H.; ST. JAMES, Bernie; ST. JAMES, Elliot; ST. JAMES, Aaron | An automatic dispensing device for wallboard joint taping is provided, including a body for holding a supply of viscous material and having a rear end and an opposite front end, a spool assembly disposed on the body and configured for supporting a spool of tape; at least one drive roller positioned at the front end and receiving an end of the spool of tape. Certain embodiments include an adhesive application assembly connected to the drive roller and mounted in operational relationship to the front end for dispensing a measured amount of adhesive upon an upper surface of the tape upon rotation of the at least one drive roll. In such embodiments, the body may be configured for holding sufficient adhesive to cover tape advanced by at least 200 rotations of the at least one drive roller. |
| 10,208,477 | VEIL FINISHING PROCESS | 2/19/2019 | MCCARTNEY, Nicholas; DONELAN, Jeffrey W. | The disclosure provides a fibrous panel including a basemat and a porous veil disposed on at least one side of the basemat, the veil having a first surface in contact with the one side of the basemat and a second facing surface opposite the first surface, the veil having a patterned coating disposed on the second facing surface, the patterned coating including defined areas without any coating and defined areas with at least a single layer of coating. The disclosure further provides a method of making a fibrous panel according to the disclosure. |
| 10,221,096 | Dimensionally stable geopolymer composition and method | 3/5/2019 | DUBEY, Ashish | A method for making geopolymer cementitious binder compositions for cementitious products such as concrete, precast construction elements and panels, mortar and repair materials, and the like is disclosed. The geopolymer cementitious compositions of some embodiments are made by mixing a synergistic mixture of thermally activated aluminosilicate mineral, calcium aluminate cement, a calcium sulfate and a chemical activator with water. |
| 10,221,100 | Pourable compositions | 3/5/2019 | INTORCIA, Michael; LETTKEMAN, Dennis | The invention provides a pourable composition comprising calcium sulfate hemihydrate; optionally, cement; one or more anionic surfactants selected from alkyl anionic surfactants, alkyl ether anionic surfactants, alkyl aryl anionic surfactants, and combinations thereof; one or more set accelerator additives; and water. |
| 10,232,588 | Siloxane compositions and methods for reducing VOC and siloxane dust | 3/19/2019 | XU, Yufeng; LUAN, Wenqi | An improved water-resistant gypsum product prepared with a high-viscosity siloxane is provided. A fuel-efficient method for making the product and reducing the amount of siloxane dust released is provided as well. |
| 10,233,639 | Open plenum utility channel | 3/19/2019 | UNDERKOFLER, Abraham M.; GULBRANDSEN, Peder J.; PAULSEN, Mark R. | A utility channel comprising a plurality of channels and accessory components, the channels having a rectangular cross section with a bottom wall and horizontally spaced parallel sidewalls extending upwardly from lateral edges of the bottom wall, opposed inturned flanges at upper edges of the sidewalls, the flanges having notches open at flange edges distal from a respective sidewall, in alignment with the notches of the opposed flange and uniformly spaced along the length of the channel, the accessory components in the channel interior space engage the flanges to maintain their assembled position in the channel interior space. |
| 10,239,230 | Slurry distributor, system and method for using same | 3/26/2019 | LI, Alfred; LEE, Chris C.; CHAN, Cesar; SCHENCK, Ronald E.; SONG, Weixin David; LORING, Curtis B.; WITTBOLD, James R.; RAGO, William J.; NELSON, Christopher Robert | A slurry distribution system can include a feed conduit and a distribution conduit in fluid communication therewith. The feed conduit can include a first feed inlet and a second feed inlet disposed in spaced relationship thereto. The distribution conduit can extend generally along a longitudinal axis and include an entry portion and a distribution outlet in fluid communication therewith. The entry portion is in fluid communication with the first and second feed inlets of the feed conduit. The distribution outlet extends a predetermined distance along a transverse axis, which is substantially perpendicular to the longitudinal axis. The slurry distribution system can be placed in fluid communication with a gypsum slurry mixer adapted to agitate water and calcined gypsum to form an aqueous calcined gypsum slurry. |
| 10,245,611 | Slurry distribution system and method | 4/2/2019 | LI, Alfred C.; LEE, Christopher C.; NELSON, Christopher; CHAN, Cesar; WITTBOLD, James; SONG, Weixin D. | A slurry distributor for use in a continuous manufacturing process includes an inlet opening and a shaped duct adapted to receive a flow of slurry provided at the inlet opening. The shaped duct has a parabolic guide surface adapted to redirect the flow of slurry. An outlet opening in fluid communication with the shaped duct is adapted to discharge the flow of slurry from the slurry distributor. |
| 10,245,755 | Lightweight, reduced density fire rated gypsum panels | 4/2/2019 | YU, Qiang; VEERAMASUNENI, Srinivas; SONG, Weixin D.; LUAN, Wenqi | A reduced weight, reduced density gypsum panel that includes high expansion vermiculite with fire resistance capabilities that are at least comparable to (if not better than) commercial fire rated gypsum panels with a much greater gypsum content, weight and density. |
| 10,260,241 | Resilient wallboard mounting channel accommodating standard fasteners | 4/16/2019 | KALIGIAN, II, Raymond A.; LETTKEMAN, Dennis M.; MACDONALD, Peter A.; FLEURY, Brett; MULLETT, Randy | An improved resilient wallboard channel constructed and arranged for attachment to a surface of a framing member and accommodating standard fasteners. Included on the present channel is a first, generally planar surface having an elongate edge, an inclined web disposed along the elongate edge and projecting at an oblique angle relative to the first surface, a web edge of the inclined web opposite the first surface is shared with a second, generally planar surface, a stop flange, which is shorter than the inclined web, projects from a stop flange edge of the second surface opposite the inclined web, and the first surface and the web edge are separated by at least -inch measured normally from the framing member surface. |
| 10,272,399 | METHOD FOR PRODUCING FIBER REINFORCED CEMENTITIOUS SLURRY USING A MULTI-STAGE CONTINUOUS MIXER | 4/30/2019 | DUBEY, Ashish; GROZA, Peter B.; NELSON, Christopher R. | A method in which a stream of dry cementitious powder from a dry powder feeder passes through a dry cementitious powder inlet conduit to feed a first feed section of a fiber-slurry mixer. An aqueous medium stream passes through at least one aqueous medium stream conduit to feed a first mixing section the fiber-slurry mixer. A stream of reinforcing fibers passes from a fiber feeder through a reinforcing fibers stream conduit to feed a second mixing section of the fiber-slurry mixer. The stream of dry cementitious powder, aqueous medium stream, and stream of reinforcing fibers combine in the fiber-slurry mixer to make a stream of fiber-cement mixture which discharges through a discharge conduit at a downstream end of the mixer. |
| 10,272,641 | GYPSUM PRODUCTS WITH FORTIFIED GLASS FIBER MAT | 4/30/2019 | LI, Alfred C.; ALDABAIBEH, Naser | A gypsum product with a fortified glass fiber mat is provided in which the glass fiber mat is strengthened by crystallization of salt crystals on the glass fiber mat prior to the glass fiber mat use in the gypsum product. Methods for making a glass fiber mat saturated with salt crystals and gypsum products with the glass fiber mats are provided as well. |
| 10,286,572 | FLOW SPLITTER FOR SLURRY DISTRIBUTION SYSTEM | 5/14/2019 | LI, Alfred C.; LEE, Christopher C.; NELSON, Christopher; CHAN, Cesar; SCHENCK, Ronald E.; LORING, Curtis B.; WITTBOLD, James; RAGO, William J. | A flow splitter can include an inlet conduit and first and second outlet conduits separated by a junction portion. The inlet conduit can include an inlet end and a junction end. The inlet conduit is disposed along a main flow axis extending between the inlet end and the junction end. The inlet end defines an inlet opening. The junction end defines first and second junction openings. The first junction opening is disposed in spaced relationship to the second junction opening. The junction portion is disposed at the junction end of the inlet conduit between the first and second junction openings. The junction portion includes a substantially planar wall region that is substantially perpendicular to the main flow axis. The flow splitter can be placed in fluid communication with a cementitious slurry mixer and a slurry distributor with the flow splitter disposed therebetween. |
| 10,289,104 | SYSTEMS AND METHODS FOR CONTROLLING A CONVEYOR SYSTEM DURING PRODUCT CHANGEOVERS | 5/14/2019 | DELLANGELO, Scott M.; WYKOFF, Robert | System for controlling a conveyor system in a wallboard production line, including a computer processor and a deadband tuning module for controlling at least one of a line speed of a conveyor belt, a foam air amount for a slurry, and an amount of water deposited into a mixer. The deadband tuning module calibrates and sets a hysteresis threshold value based on input data of at least one of the line speed, the foam air amount, and the amount of water. The input data is collected over a predetermined period. A database is provided for storing at least one statistical information of the input data during the predetermined period. The deadband tuning module determines a deadband range based on the hysteresis threshold value and the at least one statistical information using the processor. |
| 10,293,522 | Multi-piece mold and method of making slurry distributor | 5/21/2019 | LI, Alfred C.; LEE, Christopher C.; CHAN, Cesar; SCHENCK, Ronald E.; SONG, Weixin D.; LORING, Curtis B.; WITTBOLD, James; RAGO, William J. | A multi-piece mold for use in a method for making a slurry distributor includes a plurality of mold segments adapted to be removably secured together. The mold segments are configured such that, when the mold segments are assembled together, the assembled mold segments define a substantially continuous exterior surface adapted to be a negative image of an interior flow region of a slurry distributor molded thereupon. Each mold segment has a maximum cross-sectional area in a plane substantially transverse to a direction of movement of the mold segment along a removal path out of a respective opening of the molded slurry distributor. The maximum cross-sectional area of each mold segment is up to about 150% of the smallest area of the interior flow region of the molded slurry distributor through which the mold segment traverses when moving along the respective removal path. |
| 10,309,771 | System and method for determining facer surface smoothness | 6/4/2019 | OMODT, Jenner; LI, Alfred C.; SHAKE, Michael P.; SONG, Weixin D. | Embodiments of a system and a method for determining a surface smoothness of a facing specimen can be used in connection with the manufacture of products, including cementitious products such as gypsum wallboard, for example. Such systems and methods can be used to generate a composite smoothness factor based upon a measured mottle value and topography value using stochastic frequency distribution analysis. |
| 10,308,552 | Freeze-thaw durable geopolymer compositions and methods for making same | 6/4/2019 | DUBEY, Ashish, CHITHIRAPUTHIRAN, Sundararaman | A freeze-thaw durable, dimensionally stable, geopolymer composition including: cementitious reactive powder including thermally activated aluminosilicate mineral, aluminate cement preferably selected from at least one of calcium sulfoaluminate cement and calcium aluminate cement, and calcium sulfate selected from at least one of calcium sulfate dihydrate, calcium sulfate hemihydrate, and anhydrous calcium sulfate; alkali metal chemical activator; and a freeze-thaw durability component selected from at least one of air-entraining agent, defoaming agent, and surface active organic polymer; wherein the composition has an air content of about 4% to 20% by volume, more preferably about 4% to 12% by volume, and most preferably about 4% to 8% by volume. The compositions are made from a slurry wherein the water/cementitious reactive powder weight ratio is 0.14 to 0.45:1, preferably 0.16 to 0.35:1, and more preferably 0.18 to 0.25:1. Methods for making the compositions are also disclosed. |
| 10,316,201 | Acoustically transparent sandable coating | 6/11/2019 | HULKA, Samuel D.; GULBRANDSEN, Peder J.; BURY, Rafael | A formulation for an acoustically transparent coating for use on an acoustical substrate comprising a water dispersible binder and relatively large filler particles, and characterized by a high pigment to volume concentration, high viscosity, high shear thinning, and fast drying to enable the formulation to be sprayed in droplets that retain their identity when in mutual contact and in a dry coating can be efficiently sanded flat. |
| 10,336,036 | Cementitious article comprising hydrophobic finisH | 7/2/2019 | DUBEY, Ashish, PENG, Yanfei | Disclosed are cementitious articles with hydrophobic finish. In some embodiments, the article is a waterproof gypsum panel that is surface reinforced with inorganic mineral fibers that face a flexible and hydrophobic cementitious finish possessing beneficial waterproofing properties. The waterproof gypsum panels of the invention are useful in many applications, such as, for example, tilebacker board in wet or dry areas of buildings, exterior weather barrier panel for use as exterior sheathing, and roof cover board having superior water durability and extremely low surface absorption. The flexible and hydrophobic cementitious finish of the invention can include Class C fly ash, film-forming polymer, silane compound (e.g., alkyl alkoxysilane), and other optional additives. |
| 10,344,475 | LAYERED CEILING PANELS | 7/9/2019 | ALNAKKAR, Faris | A suspended ceiling system having adjacent superposed suspended rectangular panels displaying a three-dimensional structure formed of elements existing primarily at two closely spaced horizontal planes, the system including a rectangular grid of bolt slot style grid members dividing the ceiling area into rectangular modules, lower panels and upper panels paired with the lower panels at the grid modules, the lower panels being formed of sheet metal having material removed to form individual open areas separated by residual sheet material and to provide a total open area of at least 10%, the upper panels having a variegated surface appearance when viewed through the open areas of the lower panels. |
| 10,352,050 | Nonwoven joint tape having low moisture expansion properties and method for using same | 7/16/2019 | NEILL, Paul H.; IMMORDINO, Salvatore C.; STEVENS, Richard B.; MILLER, Charles J. | The invention is directed to a joint tape for finishing a joint between boards having a nonwoven substrate that does not swell substantially in the presence of water. The invention further provides a method of finishing a joint between boards having the steps of (i) applying a joint tape of the invention to a joint between boards by embedding the joint tape in a first coat of joint compound, (ii) applying a second coat of joint compound over the tape, wherein step (ii) is carried out before the joint tape and joint compound applied in step (i) have substantially dried, and optionally (iii) applying a third fill or finish coat of joint compound over the tape, wherein step (iii) is carried out before the joint tape and second coat have substantially dried. |
| 10,359,163 | Accessible ceiling baffles with integrated lighting, custom perforation, and acoustics | 7/23/2019 | HETTWER, Stephen; AHMADI, Rana; LANGAN, James | An acoustical and illumination baffle for suspension in a ceiling area comprising a housing and a light strip in the housing, the housing being an elongated sheet metal hollow body with opposed sidewalls and a bottom wall, at least a portion of the sidewalls and/or the bottom wall having perforations, a visible light emitting strip within the housing and extending along a major part of the length of the housing and extending a major part of a length of the housing, the light emitting strip being arranged to radiate visible light through an open area in a wall of the housing thereby illuminate an area below the housing, the perforations serving to reduce noise existing in the area below the baffle and to allow cooling air circulation through the housing. |
| 10,370,860 | Multi-functional underlayment acoustical mat and system | 8/6/2019 | SOCHA, Dennis Albert | An acoustic isolation mat for placement between a subfloor and a finished floor with a poured underlayment includes a bottom layer of entangled fibers contacting the subfloor; and a top layer attached to the bottom layer and being a water resistant nonwoven polymeric fabric over which the underlayment is poured. |
| 10,377,108 | Gypsum products with high efficiency heat sink additives | 8/13/2019 | CHAN, Cesar; SONG, Weixin D.; CAO, Bangji; ROSENTHAL, Guy; YU, Qiang; VEERAMASUNENI, Srinivas | Disclosed herein are gypsum products with at least one high efficiency heat sink additive. The gypsum products, e.g., gypsum panels, are less susceptible to the damaging effects of extreme heat as the temperature rises due to the presence of the at least one additive. |
| 10,392,307 | Dimensionally stable geopolymer composition and method | 8/27/2019 | DUBEY, Ashish | A method for making geopolymer cementitious binder compositions for cementitious products such as concrete, precast construction elements and panels, mortar, patching materials for road repairs and other repair materials, and the like is disclosed. The geopolymer cementitious compositions of some embodiments are made by mixing a synergistic mixture of thermally activated aluminosilicate mineral, calcium sulfoaluminate cement, a calcium sulfate and a chemical activator with water. |
| 10,407,345 | LIGHT WEIGHT GYPSUM BOARD | 9/10/2019 | YU, Qiang; SONG, Weixin David | This invention provides low dust low density gypsum wallboard products having high total core void volumes, corresponding to low densities in the range of about 10 to 30 pcf. The wallboards have a set gypsum core formed between two substantially parallel cover sheets, the set gypsum core preferably having a total void volume from about 80% to about 92%, and made from a slurry including stucco, pregelatinized starch, and a naphthalenesulfonate dispersant. The combination of the pregelatinized starch and the naphthalenesulfonate dispersant also provides a glue-like effect in binding the set gypsum crystals together. The wallboard formulation, along with small air bubble voids (and water voids) provides dust control during cutting, sawing, routing, snapping, nailing or screwing down, or drilling of the gypsum-containing products. This invention also provides a method of making the low dust low density gypsum products including the introduction of soap foam in an amount sufficient to form a total void volume, including air voids, preferably from about 80% to about 92% in the set gypsum core, corresponding to a set gypsum core density from about 10 pcf to about 30 pcf. The wallboards produced by the method generate significantly less dust during working. |
| 10,406,779 | MICROSTRUCTURE FEATURES OF GYPSUM WALLBOARD MADE WITH HIGH STARCH AND HIGH DISPERSANT LEVEL | 9/10/2019 | YU, Qiang; SONG, Weixin David | This invention provides gypsum wallboards with a unique microstructure where the walls between voids are enhanced in thickness and strength to substantially improve the strength and handling properties of the wallboards. A method of making lightweight gypsum wallboards is also provided. |
| 10,399,899 | Pregelatinized starch with mid-range viscosity, and product, slurry and methods related thereto | 9/3/2019 | SANG, Yijun; SONG, Weixin David | Disclosed are product (e.g., panels), slurry, and methods relating to a pregelatinized starch having a mid-range viscosity (i.e., from about 20 centipoise to about 700 centipoise). |
| 10,421,250 | Composite gypsum board and methods related thereto | 9/24/2019 | LI, Alfred C.; SONG, Weixin David; SANG, Yijun; DIEFENBACHER, Gregg G.; VILINSKA, Annamaria; CHRIST, Brian J.; JONES, Fredrick T.; TODD, Bradley W. | Disclosed is a composite gypsum board comprising a board core and a concentrated layer of substantial thickness (e.g., at least about 0.02 inches). The concentrated layer includes a higher weight percentage of an enhancing additive than the board core. The board core has a thickness greater than the thickness of the concentrated layer and forms the bulk of the board volume. The concentrated layer has a higher density (e.g., at least about 1.1 times greater) than the density of the board core. Also disclosed is a method of preparing a composite gypsum board. |
| 10,421,251 | Composite gypsum board and methods related thereto | 9/24/2019 | LI, Alfred C.; SONG, Weixin David; SANG, Yijun; DIEFENBACHER, Gregg G.; VILINSKA, Annamaria; CHRIST, Brian J.; JONES, Fredrick T.; TODD, Bradley W. | Disclosed is a composite gypsum board comprising a hoard core and a concentrated layer of substantial thickness (e.g., at least about 0.02 inches). The concentrated layer includes a higher weight percentage of an enhancing additive than the board core. The board core has a thickness greater than the thickness of the concentrated layer and forms the bulk of the board volume. The concentrated layer has a higher density (e.g., at least about 1.1 times greater) than the density of the board core. Also disclosed is a method of preparing a composite gypsum board. |
| 10,407,344 | Foam modifiers for gypsum slurries, methods, and products | 9/10/2019 | VILINSKA, Annamaria; SONG, Weixin David; LI, Alfred C. | Disclosed is a foam modifier, e.g., useful for gypsum or cement slurries. The foam modifier comprises a fatty alcohol that is added to a gypsum or cement slurry that includes foaming agent, such as an alkyl sulfate surfactant. The fatty alcohol can be a C6-C16 fatty alcohol in some embodiments. The use of such a foam modifier can be used, for example, to stabilize the foam, reduce waste of foaming agent, improve void size control in the final product, and improve the gypsum board manufacturing process. |
| 10,399,898 | Hydrophobic finish compositions with extended flow time retention and building products made thereof | 9/3/2019 | PENG, Yanfei; DUBEY, Ashish; BLACKBURN, David R.; LEE, Chris C.; DONELAN, Jeffrey W. | Disclosed are hydrophobic finish compositions and cementitious articles made with the hydrophobic finish compositions. In some embodiments, the article is a waterproof gypsum panel surface reinforced with inorganic mineral fibers that face a flexible and hydrophobic cementitious finish possessing beneficial waterproofing properties. These waterproof gypsum panels have many uses, such as, tile backer board in wet or dry areas of buildings, exterior weather barrier panel for use as exterior sheathing, interior wall and ceiling, and roof cover board having water durability and low surface absorption. The flexible and hydrophobic cementitious finish can include fly ash, film-forming polymer, preferably silane compound (e.g., alkyl alkoxysilane), an extended flow time retention agent including either one or more carboxylic acids, salts of carboxylic acids, or mixtures thereof, and other optional additives. Preferably a pre-coated non-woven glass fiber mat is employed to provide the inorganic mineral fibers for the surface reinforcement. |
| 10,422,144 | Joint tape embedding apparatus, system, and method | 9/24/2019 | PELOT, David D.; RAGO, William J.; COCHRAN, Charles W.; EMAMI, Samar | A joint tape embedding apparatus configured to determine the bonding and/or feel of embedding joint tape into a dry wall or wall board joint using a particular joint compound. The joint embedding apparatus is configured to allow the same user or different users to accurately repeat the determination of the bonding and/or feel attributes of the joint compound. |
| 10,427,978 | Coated building panels and articles containing calcium sulfate hemihydrate | 10/1/2019 | GRUSSING, Jeffrey F.; BOROVKA, Christopher J.; LEE, Yeung K. | A method of finishing an interior wall includes the steps of preparing a substrate of building panels including gypsum, cement or combinations thereof, the substrate having a surface, followed by applying a coating to the substrate, the coating having 1-30% by weight of a latex emulsion binder, 30-80% by weight calcium sulfate hemihydrate, up to about 8% by weight of a set inhibiting agent and 20-60% by weight water. |
| 10,442,732 | Gypsum slurries with linear polycarboxylate dispersants | 9/10/2019 | VILINSKA, Annamaria; LI, Alfred C.; DUPUIS, Mario; TRIANTAFILLU, Iordana; LOISEAU, Francis | A gypsum slurry includes water, a hydraulic component including calcium sulfate hemihydrate and a linear polycarboxylate dispersant. The linear polycarboxylate anionic dispersant includes a first monomeric repeating unit and a second monomeric repeating unit. The first repeating unit of the linear polycarboxylate dispersant is an olefinic unsaturated carboxylic acid repeating unit or salt thereof. The second repeating unit of the linear polycarboxylate dispersant is a vinyl sulfonate. The slurry can be made into a gypsum panel. Methods of making gypsum slurry and a gypsum panel are also disclosed. |
| 10,464,847 | Pregelatinized starch with mid-range viscosity, and product, slurry and methods related thereto | 11/5/2019 | SANG, Yijun; LEE, Chris C.; CHAN, Cesar; SONG, Weixin, David | Disclosed are product (e.g., panels), slurry, and methods relating to a pregelatinized starch having a mid-range viscosity (i.e., from about 20 centipoise to about 700 centipoise), and an extruded pregelatinized starch. |
| 10,464,846 | Method for production of acoustical panels | 11/5/2019 | MAYERS, Thomas M.; XU, Wei, BROWN, Martin W. | A method of decreasing the water load needed to form a fibrous panel. The process includes admixing a mineral wool, a cellulose, and a binder to provide a pre-mixed slurry, admixing a mineral filler with water to provide a mineral filler slurry, admixing the pre-mixed slurry and the mineral filler slurry to form a dispersion, flowing the dispersion onto a foraminous support wire to provide a green board, dewatering the green board to form a dewatered green board and drying the dewatered green board to provide a fibrous panel. |
| 10,486,388 | Gypsum fiber roof panel with angled edge for accommodating environmentally-induced expansion | 11/26/2019 | HOUGH, Michael J. | A gypsum fiber roofing panel with an angled edge for accommodating environmentally-induced expansion is provided, including a homogeneous body formed from a slurry of gypsum and reinforcing fibers having a face panel, a back panel, and a plurality of side edges, each side edge having an angle relative to a plane defined by the adjacent face panel in the range of 81-87 for accommodating environmentally-induced expansion relative to adjacent panels upon installation on a roof |
| 10,500,761 | Method to improve surface finish of glass fiber mat | 12/10/2019 | LI, Alfred | A durable, moisture-resistant gypsum product is provided with smooth furnish which comprises a laminated glass fiber mat in which glass fibers are compressed and cross-linked with a thermosetting polymeric resin. Methods for making these gypsum products and glass fiber mats are provided as well. |
| 10,502,700 | Methods for analyzing respirable particles in bulk materials | 12/10/2019 | BARBER, James W.; PENG, Feng | Provided is a method for detecting respirable participles in a bulk material comprising particles. The method comprises: analyzing morphology of the particles; analyzing chemical composition of the particles; creating a profile of the particles, wherein each particle in the profile is characterized by its shape, size and chemical composition; selecting particles from the profile which match the size and chemical composition of a respirable particle; and calculating a percentage of the respirable particles in the bulk material. |
| 10,526,122 | Extension collar for pails of mixable building material | 1/7/2020 | STEVENS, Jr., Richard B. | An extension collar is provided for use with a pail having an opening and containing mixable building material. The collar includes an annular body with an upper edge, an opposite lower edge, and a sidewall connecting the edges. In addition, the body has a diameter that is complementary to, and insertable into the opening of the pail such that upon insertion into the pail, the collar adds to a height of the pail. |
| 10,527,531 | Ball drop iris for vertical impact testing | 1/7/2020 | PEDDLE, Robert T. | A ball drop iris is provided for use in a ball drop testing apparatus. Included on the iris is a lower housing having an upper mounting flange having a ball opening and a body depending from the flange, the body defining a passage through which a test ball passes. A control ring is disposed on the upper mounting surface for sliding, rotating action relative to the lower housing. A plurality of iris petals is provided, each operationally connected to the control ring and to the upper mounting flange to pivot between a closed position in which the ball opening is blocked, and an open position in which the petals are simultaneously retracted and the opening is clear for passage of a test ball. |
| 10,537,863 | Constrictor valve with webbing, cementitious slurry mixing and dispensing assembly, and method for making cementitious product | 1/21/2020 | SCHENCK, Ronald E. | A constrictor valve can be associated with a conduit in fluid communication with a mixer to control a flow of cementitious slurry discharged from the mixer through the conduit. The constrictor valve can include a constrictor housing, a webbing constriction assembly, and a drive mechanism. The webbing constriction assembly includes a pair of rotatable members rotatably mounted to the constrictor housing and a plurality of webbing straps connected to the rotatable members and wrapped around the conduit. The drive mechanism includes a drive shaft and a gear assembly configured to rotate the rotatable members in opposing winding directions in response to the drive shaft rotating in a tighten direction to wrap the webbing straps tighter around the conduit to compress it and to rotate in opposing unwinding directions in response to the drive shaft rotating in a loosen direction to loosen the grip of the webbing straps on the conduit. |
| 10,546,514 | Mobile demonstration device for sound-reducing tiles | 1/28/2020 | FRANK, Will A; KEMERLING, J. MARK; CHATMAN (retired), Chester | An assembly for demonstrating sound transmission properties includes a base portion and a tray portion partially defining a transmission aperture is removably inserted into a portion of the base portion. A first sound-reducing tile having a first sound transmission property is placed in the tray portion and a sound generating device disposed in an interior volume of the base portion emits sound that is attenuated by the first sound-reducing tile as the sound exits the transmission aperture. A second sound-reducing tile having a second sound transmission property is placed in the tray portion and the sound generating device disposed in the interior volume of the base portion emits sound that is attenuated by the second sound-reducing tile as the sound exits the transmission aperture. A sound measuring device disposed outside the interior volume device can compare the first and second sound transmission properties. |
| 10,532,332 | Continuous ready mix joint treatment and texture product production | 1/14/2020 | TUTTLE, Lori; HATTAWAY, Clinton; FINLEY, Erin; IMMORDINO, SALVATORE C; HARGROVE, Pamela L | A continuous ready mix joint or texture compound manufacturing system and a method for continuously manufacturing a ready mix joint or texture compound includes a continuous mixer having an inlet and an outlet, a pump disposed at the outlet of the continuous mixer, and a disperger having an inlet and an outlet. The continuous mixer is adapted to receive at least one dry ingredient and at least one wet ingredient at the inlet and continuously mix the at least one dry ingredient and the at least one wet ingredient to form a mixed composition. The pump is adapted to pump the mixed composition from the outlet of the continuous mixer to the inlet of the disperger. The disperger is adapted to receive the mixed composition and apply a shear force to the mixed composition to form a homogenized, disperged composition. |
| 10,562,271 | Exterior sheathing panel with integrated air/water barrier membrane | 2/18/2020 | SHAKE, Michael P.; NEGRI, Robert H.; HAJAKIAN, Paula; SHIPP, Paul H.; ULLETT, James M.; LINK, Brett R. (+ 8 other inventors from Tremco) | An exterior sheathing cementitious panel which prevents water penetration and air leakage is provided. Methods for manufacturing exterior sheathing cementitious panels with a highly efficient integrated air/water barrier membrane are provided as well. |
| 10,563,408 | Drywall joint tape and method | 2/18/2020 | ROSENTHAL, Guy L. | A joint tape for drywall includes a substrate layer having an elongate shape in a lengthwise direction and being flexible in the lengthwise direction and in a transverse direction. The tape further includes a covering layer disposed in bonding relation on the substrate layer. The covering layer is rigid in the transverse direction and configured to withstand compressive forces applied generally in the transverse direction and shear stresses applied generally along the transverse direction. |
| 10,564,081 | System and method for evaluating edge hardness of cementitious boards and system for stacking cementitious boards inlcuding same | 2/18/2020 | EVERSOLE, Leslie L.; FAHEY, Colin J.; BOYER, Thomas; WATSON, Craig Thomas | Embodiments of a system and a method for determining an edge hardness value for a cementitious board can be used to effectively determine the hardness of the board after it has been made and dried at a predetermined location, such as, at a stacking station, for example. An actuator assembly can manipulate a punch such that the punch is inserted into one of the edges of one of the cementitious boards in the stacker in a controlled manner. A force gauge can be associated with the punch to measure the resistance force exerted by the cementitious board in response to the punch being inserted into its edge. The measured resistance force can be used to determine the edge hardness value. |
| 10,569,292 | Automatic dispensing device for wallboard joint taping | 2/25/2020 | NEGRI, Robert H. (+ 3 other inventors from Columbia Tools) | An automatic dispensing device for wallboard joint taping is provided, including a body for holding a supply of viscous material and having a rear end and an opposite front end, a spool assembly disposed on the body and configured for supporting a spool of tape; at least one drive roller positioned at the front end and receiving an end of the spool of tape. Certain embodiments include an adhesive application assembly connected to the drive roller and mounted in operational relationship to the front end for dispensing a measured amount of adhesive upon an upper surface of the tape upon rotation of the at least one drive roll. In such embodiments, the body may be configured for holding sufficient adhesive to cover tape advanced by at least 200 rotations of the at least one drive roller. |
| 10,577,811 | Prefill tool for finishing wallboard joints | 3/3/2020 | NEGRI, Robert H.; ST. JAMES, Aaron; ST. JAMES, Elliott; ST. JAMES, Bernie; PEKARCIK, David J.; ZUNK, Jeffrey Samuel; BURY, Rafael; HARGROVE, Pamela | A prefill tool for finishing wallboard joints is provided for finishing a wallboard joint, and includes a box assembly defining a hopper, having a top wall and a front wall constructed and arranged for engaging the wallboard joint. The front wall partially defines a gate dimensioned for dispensing joint compound stored in the hopper. Also, the gate is located on a skid plate mounted on the front wall, the skid plate having a main portion, and a gate portion partially defining the gate being displaced from a plane defined by the main portion. |
| 10,584,061 | Self-desiccating, dimensionally-stable hydraulic cement compositions with enhanced workability | 3/10/2020 | WHITE, Paul; DUBEY, Ashish | Cementitious binder compositions for cementitious products including a hydraulic cement-based reactive powder blend, an inorganic flow control agent, and a metal-based dimensional movement stabilizing agent including at least one member of the group of lithium salt and lithium base, and methods for making the cementitious binder compositions. |
| 10,590,288 | Acoustically transparent sandable coating | 3/17/2020 | HULKA, Samuel D.; GULBRANDSEN, Peder J.; BURY, Rafael | formulation for an acoustically transparent coating for use on an acoustical substrate comprising a water dispersible binder and relatively large filler particles, and characterized by a high pigment to volume concentration, high viscosity, high shear thinning, and fast drying to enable the formulation to be sprayed in droplets that retain their identity when in mutual contact and in a dry coating can be efficiently sanded flat. |
| 10,597,327 | Dimensionally stable geopolymer composition and method | 3/24/2020 | DUBEY, Ashish | A method for making geopolymer cementitious binder compositions for cementitious products such as concrete, precast construction elements and panels, mortar and repair materials, and the like is disclosed. The geopolymer cementitious compositions of some embodiments are made by mixing a synergistic mixture of thermally activated aluminosilicate mineral, calcium aluminate cement, a calcium sulfate and a chemical activator with water. |
| 10,604,929 | Fire resistant gypsum board comprising expandable graphite and related methods and slurries | 3/31/2020 | LI, Qinghua; PUNATI, Naveen; ANTOSH, Mark; SONG, Weixin D. | Disclosed are a gypsum board, and related slurries and methods. The gypsum board comprises a gypsum layer disposed between two cover sheets. The gypsum layer comprises a crystalline matrix of set gypsum and expandable graphite. The expandable graphite exhibits volume expansion at high temperatures. Optionally, unexpanded vermiculite can also be included in the gypsum layer to provide an expansion component at even higher temperatures. Because of synergy between the expandable graphite and unexpanded vermiculite in accordance with some embodiments, less vermiculite can be included in the board than in conventional board that contained vermiculite. The board desirably can pass one or more fire-related tests, and is a fire-rated board in some embodiments. |
| 10,612,194 | Gypsum wallboard comprising laminated multi-ply paper cover sheets bonded with a non-ionic polymeric binder and methods | 4/7/2020 | LI, Alfred | Provided are wallboard panels comprising laminated multi-ply paper cover sheets bonded with a non-ionic polymeric binder and a cross-linker, and methods for making the wallboard panels. |
| 10,620,052 | System and method for manufacuring cementitious boards with on-line void detection | 4/14/2020 | LASH, Jason; DELLANGELO, Scott M.; EVERSOLE, Leslie | Embodiments of a system and a method for detecting voids in a cementitious board can be used in connection with the manufacture of products, including cementitious board products such as gypsum wallboard, for example. Such systems and methods can be used to generate numerical void measurements based upon a series of thermal images obtained during the continuous manufacture of the cementitious board. |
| 10,640,986 | Drywall joint tape and method | 5/5/2020 | ROSENTHAL, Guy | A joint tape for drywall includes a substrate layer having an elongate shape in a lengthwise direction and being flexible in the lengthwise direction and in a transverse direction. The tape further includes a covering layer disposed in bonding relation on the substrate layer. The covering layer is rigid in the transverse direction and configured to withstand compressive forces applied generally in the transverse direction and shear stresses applied generally along the transverse direction. |
| 10,639,654 | Gypsum slurry application modifier | 5/5/2020 | TODD, Brad; RAGO, William | B28B19/0092 Machines or methods for applying the material to surfaces to form a permanent layer thereon to webs, sheets or the like, e.g. of paper, cardboard |
| 10,646,837 | Method for producing fiber reinforced cementitious slurry using a multi-state continuous mixer | 5/12/2020 | DUBEY, Ashish; GROZA, Peter B.; NELSON, Christopher R. | A method in which a stream of dry cementitious powder from a dry powder feeder passes through a dry cementitious powder inlet conduit to feed a first feed section of a fiber-slurry mixer. An aqueous medium stream passes through at least one aqueous medium stream conduit to feed a first mixing section the fiber-slurry mixer. A stream of reinforcing fibers passes from a fiber feeder through a reinforcing fibers stream conduit to feed a second mixing section of the fiber-slurry mixer. The stream of dry cementitious powder, aqueous medium stream, and stream of reinforcing fibers combine in the fiber-slurry mixer to make a stream of fiber-cement mixture which discharges through a discharge conduit at a downstream end of the mixer. |
| 10,662,114 | Ultra-light cementitious compositions and related methods | 5/26/2020 | LETTKEMAN, Dennis Mark; WILSON, John Wesley; BEDWELL, William Kelly; MILLER, Gary Franklin; KALIGIAN, Raymond A. | An ultra-light, pourable, self-drying cementitious product with improved density control and ultra-low water demand is provided. Compositions and methods for making the products are provided as well, including compositions and methods with ultra-low water demand. |
| 10,662,112 | Method and system for on-line blending of foaming agent with foam modifier for addition to cementitious slurries | 5/26/2020 | VILINSKA, Annamaria; LI, Alfred C.; SONG, Weixin D. | Disclosed is a method and system for blending a foam modifier with foaming agent online, e.g., as may be particularly useful for gypsum or cement slurries. The foam modifier comprises a fatty alcohol that is added to a gypsum or cement slurry that includes foaming agent, such as an alkyl sulfate surfactant. The fatty alcohol can be a C6-C16 fatty alcohol in some embodiments. The use of such a foam modifier can be used, for example, to stabilize the foam, reduce waste of foaming agent, improve void size control in the final product, and improve the gypsum board manufacturing process. |
| 10,669,215 | SNAP-SET, READY-MIX JOINT COMPOUND | 6/2/2020 | STEVENS, Richard B.; MILLER, Charles J. | A joint compound system includes a set-inhibited, pre-wetted, setting-type, ready-mix joint compound and a set initiator. The set-inhibited, pre-wetted, setting-type joint compound includes a ready-mixed, setting-type joint compound base with a calcium-free phosphate set preventing agent that impedes chemical hydration of a gypsum component of the setting-type joint compound. The joint compound base is free of calcium carbonate. The set initiator includes alum to reinitiate the chemical hydration reactions. |
| 10,677,698 | SYSTEM AND METHOD FOR MANUFACTURING CEMENTITIOUS BOARDS WITH ON-LINE SLURRY SET MEASUREMENT | 6/9/2020 | REED, Paul W. | Embodiments of a system and a method for measuring cementitious board during its continuous manufacture can be used online in a continuous manufacturing process to effectively determine the degree to which cementitious slurry has set (e.g., expressed as percent hydration) at a predetermined location, such as, near a cutting station, for example. A compression assembly can be used to compressively engage the cementitious board in a controlled manner as it passes by the compression member along the conveyor between the forming station and the cutting station. A force gauge can be associated with the compression member to measure the resistance force exerted by the cementitious board in response to being compressed by the compression member. The resistance force can be correlated to a set characteristic of the cementitious board, such as a numerical value of percent hydration of the cementitious slurry of that particular portion of the cementitious board. |
| 10,689,846 | SHAFTWALL SYSTEM USING FOLDED PANELS, AND PANEL | 6/23/2020 | ULLETT, James M.; PUNATI, Naveen | A panel for a shaftwall system includes a panel body with a core and at least one outer facing layer and an opposite backing surface. A score line is formed in the facing layer, defining two folded panel portions. The panel is folded along the score line to form a folded edge, and the folded panel portions are arranged so that the backing surfaces of the panel portions contact each other. A companion shaftwall building structure system is provided, including a plurality of the panels defining an enclosure, each panel being a -inch thick wallboard panel having a V-shaped score line defining a pair of panel portions, the score line forms a tapered edge of the folded panel. A plurality of brackets is provided, each bracket defining a panel track dimensioned for slidingly accommodating the folded panel and retaining the panel in place without the use of fasteners. |
| 10,689,849 | ATTACHMENT OF FURRING STRIPS TO FLOOR JOISTS | 6/23/2020 | SWINEA, Joseph; MILLER, Gary; POSPISIL, Frank; ULLETT, James | An attachment system is provided for attaching furring strips to joists, each such joist having a bottom surface, an upper surface and a sidewall. The attachment system for each furring strip including a fastener having a shaft and a head, the fastener secured to the sidewall of the joist in a position vertically displaced from the bottom surface. At least one length of wire is provided with a mid-portion and two free ends, the mid-portion being looped around the fastener. The free ends are wrapped around the furring strip and fastened to each other to securely hold the furring strip to the floor joist. |
| 10,696,594 | HIGH NOISE REDUCTION COEFFICIENT, LOW DENSITY ACOUSTICAL TILES | 6/30/2020 | XU, Wei; MAYERS, Thomas M.; BAKKEN, Scott C. | Acoustical tile including a dried base mat of: about 70 to about 90 wt % mineral wool; about 5 to about 15 wt % perlite; 0 to about 10 wt % starch; about 3 to about 10 wt % latex; 0 to about 5 wt % gypsum; and less than 5 wt % water. The dried base mat without including glass fibers and without a laminate layer or coating and without perforations has a NRC of about 0.70 or greater, a density of about 10 pcf to about 12 pcf, and a thickness of about to about 1 inch. The acoustical tile can further include a back coating at a surface weight of about 5 grams per square foot (gsf) to about 40 gsf to the dried base mat, wherein the acoustical tile has the CAC rating of about 30 to about 35. |
| 10,717,059 | Calcined gypsum slurry mixing apparatus having variably positionable lump ring and method for manufacturing gypsum product using same | 7/21/2020 | SCAFF, Joseph; BELL, Lester | A mixing apparatus for producing aqueous calcined gypsum slurry includes a housing, a rotor assembly, and an actuator system. The housing defines a mixing chamber therewithin. A top lid of the housing includes a lid ring extending along a normal axis toward a bottom thereof. The rotor assembly includes a rotor disposed within the mixing chamber and a drive shaft extending along and rotatable about the normal axis. The rotor is rotatively coupled with the drive shaft and extends radially therefrom. The upper surface of the rotor and the lid ring are separated by a lid ring gap along the normal axis. The actuator system is arranged with the rotor assembly to selectively move the rotor over a range of travel along the normal axis between a lowered position and a raised position to selectively change the lid ring gap. |
| 10,737,981 | Method for making a lightweight gypsum composition with internally generated foam and products made from same | 8/11/2020 | EMAMI, Samar; IMMORDINO, Salvatore C.; NEGRI, Robert H.; PELOT, David D.; GRUSSING, Jeffrey F.; RUIZ CASTANEDA, Juan Carlos; NELSON, Christopher R.; ROXBURGH, John Jason; VEERAMASUNENI, Srinivas | A gypsum-based composition of calcium sulfate hemihydrate with (a) alum and calcium carbonate and/or (b) zeolite and sodium percarbonate for making foamed gypsum slurry. A method to make foamed gypsum slurry from the composition. A method to make foamed gypsum product from the composition. A cavity wall having a cavity filled with the foamed gypsum product. |
| 10,737,979 | Gypsum set accelerator and method of preparing same | 8/11/2020 | LU, Runhai; SANG, Yijun; SONG, Weixin D. | A modified gypsum set accelerator and a method of preparing the same is provided, which includes dry loose finely ground particles of a mixture of ground dry calcium sulfate dihydrate and a grinding aid selected from one or more of beta-naphthalene sulfonate formaldehyde condensate, trimetaphosphate phosphate salt, tripolyphosphate salt, tetra-pyrophosphate salt, and pregelatinized starch. |
| 10,738,465 | Suspended baffle system | 8/11/2020 | ALNAKKAR, Faris | An acoustical baffle system for suspension in an open plenum space comprising a plurality of parallel spaced carriers and a plurality of parallel spaced baffles suspended on and transverse to the carriers, the carriers having pairs of opposed, uniformly spaced grips on their lower faces, pairs of opposed grips being spaced along the carrier at a regular center-to-center distance greater than the spacing between a pair of opposed grips, the baffles having a relatively deep U-shaped cross-section with sides and a bottom between the sides, outwardly directed flanges at upper ends of the sides, the flanges being received in a respective pair of grips on each of a plurality of carriers. |
| 10,774,473 | Compositions and methods with microfibrillated cellulose for wallboard paper | 9/15/2020 | TUTTLE, Lori | A wallboard panel which comprises a paper cover sheet comprising microfibrillated cellulose (MFC). A paper cover sheet comprising MFC. A paper stock composition comprising MFC and methods for making a multi-ply paper cover sheet comprising MFC. Methods for making a wallboard panel comprising a paper cover sheet comprising MFC. |
| 10,775,050 | Sectionable floor heating system | 9/15/2020 | SINHA RAY, Suman; RAO, Ajith Mulky | A heating device for a floor includes a membrane, a plurality of heating elements attached to the membrane, at least one positively charged electrode attached to each of the heating elements and at least one negatively charged electrode attached to each of the heating elements, where the at least one positively charged electrode and the at least one negatively charged electrode are connected to an electrical power source and supply electrical power to the heating elements. The heating elements, the at least one positively charged electrode and the at least one negatively charged electrode are arranged on the membrane so that cutting of the membrane along a cutting line in any direction across the membrane does not disrupt the supply of electrical power to the heating elements. |
| 10,781,139 | Joint compound with sulfonated starch | 9/22/2020 | WEINBERGER, Renee J.; LU, Runhai; SANG, Yijun; ROSENTHAL, Guy L. | Provided herein is a joint compound having a composition to allow tools to easily clean up, comprising water, at least one inert filler, and a binder comprising a sulfonated starch, and a method of preparing the joint compound. |
| 10,800,706 | Vesicle dedusting agents for joint compounds | 10/13/2020 | DONOVAN, Alexander J.; IMMORDINO, Salvatore C. | A drying-type joint compound can comprise: (a) a primary filler at about 50 weight percent (wt %) to about 98 wt % on a dry basis, wherein the primary filler includes one member selected from the group of calcium carbonate, calcium sulfate dihydrate, and talc, and a mixture thereof; (b) a secondary filler at up to about 25 wt % on a dry basis; (c) a binder at about 1 wt % to about 15 wt % on a dry basis; (d) a polymer thickener at about 0.05 wt % to about 3 wt % on a dry basis; (e) a vesicle dedusting agent at about 0.01 wt % to about 10 wt % on a dry basis, wherein the vesicle dedusting agent comprises vesicles; and (f) an additive up to about 10 wt % o on a dry basis; and (g) water at a ratio of water to dry components of about 1:6 to about 3:1. |
| 10,815,149 | Hydrophobic finish compositions with extended flow time retention and building products made thereof | 10/27/2020 | DUBEY, Ashish; PENG, Yanfei | Disclosed are hydrophobic finish compositions and cementitious articles made with the hydrophobic finish compositions. In some embodiments, the article is a waterproof gypsum panel surface reinforced with inorganic mineral fibers that face a flexible and hydrophobic cementitious finish possessing beneficial waterproofing properties. The waterproof gypsum panels of the invention have many uses, such as, tilebacker board in wet or dry areas of buildings, exterior weather barrier panel for use as exterior sheathing, and roof cover board having water durability and low surface absorption. The flexible and hydrophobic cementitious finish can include fly ash, film-forming polymer, silane compound (e.g., alkyl alkoxysilane), an extended flow time retention agent including either one or more carboxylic acids, salts of carboxylic acids, or mixtures thereof, and other optional additives. |
| 10,814,522 | Stucco paper screen assembly | 10/27/2020 | WALKER, Blair C.; STEWART, Erin | A screen assembly includes a housing defining a material flow chamber and having an inlet end and an outlet end, and a stucco discharge opening being located in the chamber between the inlet end and the outlet end. An auger shaft is located in the housing for axial rotation and having at least one first helical flight arranged in a flight pattern oriented so that material engaging the first helical flight is conveyed from the inlet end to the outlet end. A screen surrounds the at least one first helical flight for common rotation and extends generally from the inlet end to the outlet end. At least one second helical flight is disposed on an exterior surface of the screen and is arranged in a flight pattern oriented so that material engaging the second helical flight is conveyed in a direction from the outlet end. |
| 10,837,172 | TAPERED KERF CONSTRUCTION | 11/17/2020 | SPIHLMAN, Michael P.; GULBRANDSEN, Peder J.; HULKA, Samuel David | A drywall sheet with a gypsum core sheathed in front and rear paper layers, an edge of the sheet being tapered towards the rear, the taper being formed by a flap of a marginal area of the front paper and a thin layer of gypsum attached to an inner side of the front paper margin being folded into a space resulting from a slot cut in the sheet edge to a depth generally equal to the width of the flap, the flap being held in place by a continuous layer of a hot melt adhesive occupying a space of the slot not occupied by the flap and having an elasticity that imparts fastener penetration resistance to the associated edge from a front face of the sheet. |
| 10,844,595 | Exterior cementitious panel with multi-layer air/water barrier membrane assembly and system and method for manufacturing same | 11/27/2020 | DONELAN, Jeffrey W.; RICMOND, Steven; SHAKE, Michael P.; PENG, Yanfei; LEE, Chris C.; OMODT, Jenner J.; SELEPOUGA, Serguei | Embodiments of a system and a method for manufacturing a cementitious panel can be used to produce a cementitious panel having a multi-layer air/water barrier membrane assembly. The layers of the membrane can be built up via a series of applicator stations applying a fluid composition using roll coating, for example. Between applicator stations the applied layer of fluid composition can be subjected to drying conditions via infrared heating. To help protect from the deleterious effects of infrared heating, the cementitious panel can be conveyed through a cooling tunnel after each drying section. |
| 10,850,425 | Lightweight, reduced density fire rated gypsum panels | 12/1/2020 | YU, Qiang; VEERAMASUNENI, Srinivas; SONG, Weixin D.; LUAN,Wenqi | A reduced weight, reduced density gypsum panel that includes high expansion vermiculite with fire resistance capabilities that are at least comparable to (if not better than) commercial fire rated gypsum panels with a much greater gypsum content, weight and density. |
| 10,875,935 | Method of preparing pregelatinized, partially hydrolyzed starch and related methods and products | 12/29/2020 | SANG, Yijun; SONG, Weixin D.; CHAN, Cesar; LEE, Chris C. | Disclosed are methods relating to an extruded pregelatinized, partially hydrolyzed starch prepared by mixing at least water, non-pregelatinized starch, and acid to form a starch precursor. The acid can be a weak acid that substantially avoids chelating calcium ions or a strong acid in a small amount. In the method, pregelatinization and acid-modification of the starch precursor occurs in one step in an extruder. Also disclosed are methods of preparing board using the starch prepared according to the methods, as well as starches and boards prepared by various methods of the invention. |
| 10,876,305 | Building perimeter systems | 12/29/2020 | UNDERKOFLER, Abraham M.; GULBRANDSEN, Peder J. | An architectural perimeter pocket assembly having at least a top and an inner side for forming an open bottom pocket, the inner side including an upper section and a lower extension section separately formed from the upper section, the sections having mutual engageable coupling formations horizontally displaced from main portions of said sections that when engaged enable the upper section to support the lower extension section vertically and restrain the lower section from pendulum-type motion. |
| 10,900,237 | WALLBOARD JOINT TAPE WITH FLUORESCENT COMPOUND | 1/26/2021 | KINCAID, Tyler; PELOT, David D.; IMMORDINO, Jr., Salvatore C. | An identifiable wallboard joint tape is provided and includes a web of tape incorporated with an identifier such that the tape is visible under UV light and visually distinguishable from the surrounding wallboard joint and joint compound. |
| 10,906,271 | Exterior sheathing panel with integrated air/water barrier membrane | 2/2/2021 | SHAKE, Michael P.; NEGRI, Robert H.; HAJAKIAN, Paula; SHIPP, Paul; ULLETT, James M.; KENNY, Timothy G.; LINK, Brett R.; HERNANDEZ, Pamela; SCHULTE, Kristin; MARIMPIETRI, Dante; SOVEY, Casey; MOHAMMED, Muneer; CREMONA, Dominic; ZERUCHA, Ellen; STINSON, Scottie Lee | An exterior sheathing cementitious panel which prevents water penetration and air leakage is provided. Methods for manufacturing exterior sheathing cementitious panels with a highly efficient integrated air/water barrier membrane are provided as well. |
| 10,913,087 | System and method for producing mold-resistant paper with wet scrubber assembly | 2/9/2021 | HAJAKIAN, Paula | Embodiments of a system and a method for preparing mold-resistant paper comprising a wet scrubber assembly in fluid communication with at least one collection plenum disposed at an operational area of a paper manufacturing line. The wet scrubber assembly can be operated to draw a stream of exhaust air from the operational area of the paper manufacturing line through the wet scrubber assembly to remove particulate from the exhaust stream. Such systems and methods can be used to produce mold-resistant paper by coating a paper with an antimicrobial composition including at least one antimicrobial additive at the calendering stage. The collection plenum can be placed in proximate relationship with the calendering stack such that the amount of antimicrobial additive particulate in the air at the calendering stage is reduced. The mold-resistant paper can be used in a gypsum panel. |
| 10,919,808 | Gypsum composition comprising uncooked starch having mid-range viscosity, and methods and products related thereto | 2/16/2021 | SANG, Yijun; CHRIST, Brian J. | Classifications C04B28/14 Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing calcium sulfate cements. View 9 more classifications US20190023614A1 |
| 10,928,020 | Light bar for suspended ceiling | 2/23/2021 | AHMADI, Rana; MEDINA, Richard R. | An elongated lighting assembly useful in suspended baffle ceilings comprising an inverted channel having an upper web and opposed legs depending from opposite sides of the web, inturned flanges extending inwardly from lower ends of the legs, distal edges of the flanges being horizontally spaced from each other to form a gap, LED tape located over an upper surface of the flanges and carrying upwardly facing LED elements at regularly spaced intervals, surfaces inside the channel facing the LED tape being coated with a white diffuse reflecting material whereby light emitted by the LED elements emanates essentially exclusively out of the gap by diffuse reflection from the coating. |
| 10,928,286 | System and method for evaluating joint compound specimen | 2/23/2021 | PELOT, David D.; STEVENS, Richard B. | Embodiments of a system and a method for evaluating a joint compound specimen can be used to determine a numerical sandability value for the specimen. A moving assembly is configured to move a sanding member in a sanding direction relative to the joint compound specimen supported in a support fixture. An actuator assembly is configured to drive the sanding member into contacting relationship with the joint compound specimen such that the sanding member exerts a controlled amount of pressure against the joint compound specimen. The force gauge is configured to measure a resistance force against the sanding member in a resistance direction in opposing relationship to the sanding direction. A processor programmed with a joint compound analyzing application is configured to use a force signal from the force gauge that is indicative of the resistance force to determine the sandability value for the joint compound specimen. |
| 10,927,556 | NON-SWELLING REINFORCED DRYWALL JOINT TAPE | 2/23/2021 | NEGRI, Robert H.; ROSENTHAL, Guy L.; IMMORDINO, Salvatore C. | A non-swelling joint tape for use with drywall applications includes a tapered trim strip body extending along a central body axis and a non-swelling backing paper. The tapered trim strip body includes a first surface, a second surface opposite the first surface, a first side, and a second side opposite the first side, and is at least partially constructed from a first dimensionally stable material. The non-swelling backing paper is at least partially secured to the second surface of the tapered trim strip body and is at least partially constructed from a second dimensionally stable material. The tapered trim strip body is dimensioned such that a first thickness between the first surface and the second surface at the central body axis is greater than a second thickness between the first surface and the second surface at the first side and the second side. |
| 10,968,138 | Gypsum slurries with linear polycarboxylate dispersants | 4/6/2021 | VILINSKA, Annamaria; LI, Alfred C.; DUPUIS, Mario; TRIANTAFILLU, Iordana; LOISEAU, Francis | A gypsum slurry includes water, a hydraulic component including calcium sulfate hemihydrate and a linear polycarboxylate dispersant. The linear polycarboxylate anionic dispersant includes a first monomeric repeating unit and a second monomeric repeating unit. The first repeating unit of the linear polycarboxylate dispersant is an olefinic unsaturated carboxylic acid repeating unit or salt thereof. The second repeating unit of the linear polycarboxylate dispersant is a vinyl sulfonate. The slurry can be made into a gypsum panel. Methods of making gypsum slurry and a gypsum panel are also disclosed. |
| 10,981,294 | Headbox and forming station for fiber-reinforced cementitious panel production | 4/20/2021 | DUBEY, Ashish; GROZA, Peter B.; NELSON, Christopher R. | A slurry feed apparatus for depositing a slurry upon a moving forming web having a direction of travel, including: a headbox mounted transverse to the direction of travel of the moving web, having a back wall, sidewalls, a concave transverse front wall, an open top, and an open bottom for directing slurry onto the forming web; a moveable dam releasably attached to the back wall, a seal attached to a bottom wall of the dam; and a headbox support system extending from opposed the sidewalls. Also disclosed is a continuous process for depositing a uniform layer of a cementitious slurry containing reinforcing fibers from the headbox onto a traveling web. |
| 10,982,433 | Monolithic acoustical system | 4/20/2021 | BUCK, Curtis F.; DELGADO, Michael A.; MUNOZ, William R.; SCHMIDT, Andrew L. | A composite structure for improving the acoustical properties of a low NRC membrane including a sound absorbing layer and a porous, scrim covered, perforated drywall layer. |
| 10,988,953 | Building perimeter system | 4/27/2021 | UNDERKOFLER, Abraham M.; GULBRANDSEN,, Peder J.; PAULSEN, Mark R.; ODONNELL, Michael P. | A perimeter pocket system with an inner wall having a brace connecting protuberance and an extended ceiling supporting ledge with grid tee end reference marks or coupling structure for an extension. Grid tee connector clips have cam slots for raising grid tees in a seismic event and features imparting rigidity and vibration resistance. |
| 10,988,416 | Colloidal vesicles for use as dedusting agents in construction panels | 4/27/2021 | DONOVAN, Alexander J.; IMMORDINO, Salvatore C. | Ceiling tiles and wallboards can be produced with vesicle dedusting agent. For example, a ceiling tile can comprise: a dried base mat that includes: (a) mineral wool; (b) binder; (c) a vesicle dedusting agent at about 0.01 to about 10 wt %, wherein the vesicle dedusting agent comprises vesicles; (d) optionally cellulosic fiber; (e) optionally perlite; (f) optionally glass fiber; and (g) optionally calcium sulfate dihydrate. For example, a wallboard produced from a slurry comprising: (a) calcium sulfate hemihydrate at 70 to 95 wt %; (b) a vesicle dedusting agent at about 0.01 to about 10 wt %, wherein the vesicle dedusting agent comprises vesicles; (c) optionally cellulose fibers at about 0.5 to about 3 wt %; (d) optionally at least one dispersant at about 0.01 to about 2 wt %; and (e) water at a ratio of water to dry components of about 1:6 to about 20:1. |
| 11,002,010 | Methods for making high sound transmission class gypsum boards and gypsum boards made by the method | 5/11/2021 | SINHA RAY, Suman; ANTOSH, Mark; HEMPHILL, Mark; SANG, Yijun | A layered gypsum wallboard can include: a gypsum board having opposing front and back faces, wherein the gypsum board comprises a first cover sheet material at the front face, a second cover sheet material at the back face, and a gypsum core layer comprising gypsum; an adhesive layer on the second cover sheet material of the gypsum board, the adhesive including a polymer having a glass transition temperature (Tg) of ?10 C. to 30 C.; an intermediate gypsum layer including gypsum on the adhesive layer such that the adhesive layer is between the second cover sheet material and the intermediate gypsum layer, wherein the adhesive layer and the intermediate gypsum layer have a combined thickness of 0.09 inches to 0.25 inches; and a third cover sheet material, wherein the intermediate gypsum layer is between and in contact with the adhesive layer and the third cover sheet material. |
| 11,002,033 | Blast protection wall including cementitious panel | 5/11/2021 | POSPISIL, Frank | A wall for a building that includes a framed wall structure including a top support, a bottom support, and opposing side supports connected together, and at least one intermediate support attached to the top support and the bottom support, and a blast panel made of a cementitious material attached to the framed wall structure. |
| 11,008,257 | Gypsum composition comprising uncooked starch having mid-range viscosity, and methods and products related thereto | 5/18/2021 | SANG, Yijun; CHRIST, Brian J. | Disclosed are product (e.g., board), slurry, and methods relating to an uncooked starch that can be used to enhance strength in one or more gypsum layers in the board. The uncooked starch has a hot water viscosity of from about 20 BU to about 300 BU according to the HWVA method, and/or a mid-range peak viscosity of from about 120 Brabender Units to about 1000 Brabender Units. |
| 11,021,399 | SELF-CONSOLIDATING GEOPOLYMER COMPOSITIONS AND METHODS FOR MAKING SAME | 6/1/2021 | CHITHIRAPUTHIRAN, Sundararaman; DUBEY, Ashish | Self-consolidating geopolymer compositions utilizing fly ash and inorganic mineral including alkaline earth metal oxide as cementitious reactive components and include cement set retarder. The alkaline earth metal oxide is preferably calcium oxide (also known as lime or quicklime) and/or magnesium oxide. The inorganic minerals including alkaline earth metal oxide have an alkaline earth metal oxide content preferably greater than 50 wt. %, more preferably greater than 60 wt. %, even more preferably greater than 70 wt. %, and most preferably greater than 80 wt. %, for example greater than 90 wt. %. The cementitious reactive powder may optionally also include one or more aluminous cements and one or more source of calcium sulfates. The cementitious reactive powders are activated with an alkali metal chemical activator selected from alkali metal salt and/or alkali metal base. Methods for making the compositions are also disclosed. |
| 11,028,290 | HEAT-APPLIED GAP FINISHING TAPE | 6/8/2021 | ROSENTHAL, Guy L; ROSENSTIEL, Terry L; IMMORDINO, Salvatore C; NEGRI, Robert H | A gap finishing tape for use with drywall applications includes a trim strip body extending along a central body axis, a hot melt adhesive extending along the central body axis, and a backing paper. The trim strip body includes a first surface, a second surface opposite the first surface, a first side, and a second side opposite the first side, and is at least partially constructed from a metallic material. The backing paper is at least partially secured to the second surface of the trim strip body. The trim strip body is at least partially embedded in the hot melt adhesive. |
| 11,028,597 | MAGNETIC FASTENER TECHNOLOGY FOR WALLBOARD PANELS | 6/8/2021 | IMMORDINO, SALVATORE C | A fastener is provided and is configured for securing magnetized items to a wallboard panel. Included on the fastener is a fastener body having a first side and an opposite second side, and a counter-sunk throughbore extends from the first side to the second side. The body has a tapered peripheral edge. In addition, the first side is covered with wallboard joint tape. |
| 11,029,139 | WALLBOARD SCORE, SNAP AND EDGE APPEARANCE TEST PROCEDURE | 6/8/2021 | WONDERLICH, Jerry D.; KOCH, John A.; COCHRAN, Charles W; LUCAS, Tim; OMODT, Jenner J. | A procedure is provided for evaluating the score, snap and edge appearance of wallboard panels, and includes scoring a wallboard panel with a knife at a constant and known force using a benchtop board scoring device; snapping the scored panel in a Universal Board Testing Machine to measure the breaking force, forming a snapped panel edge; measuring a cleanliness of the snapped panel edge by placing a straight edge against the snapped panel edge and measuring gaps between the snapped panel edge and the straight edge in a plurality of locations on a face of the panel, and a plurality of locations on a back of the panel; and averaging all of the measured gaps to create an Index Score. |
| 11,040,513 | COMPOSITE GYPSUM BOARD AND METHODS RELATED THERETO | 6/22/2021 | LI, Alfred C; SONG, Weixin D; SANG, Yijun (Kevin); DIEFENBACHER (retired), Gregg G.; VILINSKA, Annamaria; CHRIS, Brian J; JONES, Frederick T; TODD, Brad | Disclosed is a composite gypsum board comprising a board core and a concentrated layer of substantial thickness (e.g., at least about 0.02 inches). The concentrated layer includes a higher weight percentage of an enhancing additive than the board core. The board core has a thickness greater than the thickness of the concentrated layer and forms the bulk of the board volume. The concentrated layer has a higher density (e.g., at least about 1.1 times greater) than the density of the board core. Also disclosed is a method of preparing a composite gypsum board. |
| 11,040,910 | PHOSPHOLIPID DEDUSTING AGENTS FOR JOINT COMPOUNDS | 6/22/2021 | DONOVAN, Alexander J. | A drying-type joint compound, a setting-type joint compound, and/or a ready-mixed, setting-type joint compound can include a phospholipid dedusting agent. For example, a drying-type joint compound can include: (a) a primary filler at 50 weight percent (wt %) to 98 wt % on a dry basis, wherein the primary filler includes one of calcium carbonate, calcium sulfate dihydrate, and talc, and a mixture thereof (b) a secondary filler at up to 25 wt % on a dry basis; (c) a binder at 1 wt % to 15 wt % on a dry basis; (d) a polymer thickener at 0.05 wt % to 3 wt % on a dry basis; (e) a phospholipid dedusting agent at 0.01 wt % to 3 wt % on a dry basis; (0 an additive up to 10 wt % o on a dry basis; and (g) water at a weight ratio of water to dry components of 1:6 to 2:1. |
| 11,046,053 | COMPOSITE GYPSUM BOARD AND RELATED METHODS | 6/29/2021 | HEMPHILL, Mark K; SANG, Yijun (Kevin) | Disclosed is a composite gypsum board comprising a board core comprising set gypsum sandwiched between face and back cover sheets. The composite gypsum board also comprises an intermediate sheet between the board core and the face cover sheet, with a thin, dense gypsum layer disposed between the intermediate sheet and the face cover sheet. Optionally, a second dense gypsum layer can be disposed between a first major side of the board core and the back cover sheet. Also disclosed is a method of preparing a composite gypsum board in which an intermediate sheet is applied over a dense gypsum layer disposed on a face cover sheet. A back cover sheet is applied to the other major side of the board core, with a second dense gypsum layer optionally disposed therebetween. |
| 11,056,870 | Magnetic decorative trim with DC power transmission | 7/6/2021 | IMMORDINO, JR., Salvatore C.; ROSENSTIEL, Terry; JOSEPH, Mark; SINHA RAY, Suman; WHITE, William; DADAKIS, Alexander | A decorative interior trim piece is provided for use in a low voltage power transmission system, and includes an outer, decorative surface, an opposite inner surface facing a substrate, a first end surface and an opposite second end surface. At least one conductive element extends from the first end surface to said second end surface on the inner surface. Each conductive element has a connector surface at each of the first end and second ends. At least one magnetic fastener is secured to the inner surface for releasably attaching the trim piece to the substrate. A complementary low voltage power transmission system is also disclosed. |
| 11,054,149 | Sectionable floor heating system | 7/6/2021 | RAO, Ajith; SINHA RAY, Suman | A heating system for a floor is provided and includes a plurality of heating devices, where each of the heating devices includes a membrane, and a plurality of heating elements and at least one electrical coupling member attached to the membrane. At least one heating device coupling member is attached to the at least one electrical coupling member on adjacent heating devices of the plurality of heating devices, where the at least one heating device coupling member conveys electricity between the adjacent heating devices. |
| 11,053,682 | High strength main tee splice | 7/6/2021 | IMMORDINO, SALVATORE C | A connector for a main tee of a suspended ceiling grid that has improved tensile strength achieved by accurately proportioning an end tab and receiving depression so that full lateral abutment between these elements is obtained to assure full engagement between lock lance edges and mating stop edges. |
| 11,066,576 | Drywall joint tape with dual purpose adhesive backing | 7/20/2021 | ROSENTHAL, Guy; HARGROVE, Pamela L.; ADCOCK, Joseph; NEGRI, Robert | A joint tape to be applied to wallboard is provided and includes a base substrate having opposing sides. In certain embodiments, a first adhesive layer is applied to one of the sides of the base substrate and a second adhesive layer is applied to the first adhesive layer, where the first adhesive layer is different than the second adhesive layer. In certain other embodiments, two different adhesives are used in a single adhesive layer. In use, the joint tape is positioned over and removably secured to a joint or corner between adjacent wallboard panels using the first adhesive layer. After the joint tape is in position, joint compound is applied to the joint tape, and the water in the joint tape activates it to form a secure bond with the wallboard panels. |
| 11,098,474 | Wall channel for grid tee | 8/24/2021 | LEHANE, James J.; WILLI, John M. | An elongated sheet metal channel for transversely supporting drywall grid tees at regular intervals along the channel, the channel having a generally vertical web, and a lower flange and an upper flange, a vertical spacing between the flanges being sufficient to receive upright grid tees at the intervals, the lower flange having outer and mid-width portions lying in a generally horizontal plane at an interval when a tee is received therein, opposed formations stamped into one of the flanges at the intervals to longitudinally locate the grid tee, the upper flange at said intervals having a pocket for receiving a distorted end of a grid tee. |
| 11,111,174 | Mineral fiber roof cover boards | 9/7/2021 | XU, Wei; HUTCHINSON, Derrick; ROKKE, Christopher J.; TUTTLE, Lori; HOUGH, Michael J. | Composite roofing structures can include mineral fiber roof cover boards with high concentration of mineral wool or mineral wool and perlite. The roofing structure may include: a roof cover board including a dried base mat including: 8-25% mineral wool, 40-65% perlite, 9-15% binder, 9-15% cellulosic fiber, and 0.25-2% sizing agent, all % by weight; an insulation layer; and a roofing membrane. The roof cover board is over the insulation layer, the roofing membrane is over the roof cover board. The roof cover board is attached to the insulation layer. The roofing membrane is attached to the roof cover board. Alternatively dried base mat may include: 30-70% mineral wool, 10-50% perlite, 5-15% binder, 2-20% cellulosic fiber, and 0.25-2% sizing agent. Alternatively the dried base mat may include: 60-90% mineral wool, 0-10% fiber, 0-10% perlite, 4-10% binder, 0-5% gypsum, and 0.25-2% sizing agent. |
| 11,126,169 | Systems and methods for controlling a conveyor system during product changeovers | 9/21/2021 | DELLANGELO, Scott M.; WYKOFF, Robert | A system for controlling a line speed of a conveyor belt of a conveyor system during product changeovers in a wallboard production line includes a computer processor, a calculation module for calculating a predetermined mass rate of a supply of ingredients transported on the conveyor belt and deposited into a mixer during a product changeover period, and a speed adjustment module for adjusting the line speed of the conveyor belt, using the processor, based on at least one of the predetermined mass rate and the line speed of the conveyor belt for reducing an overshoot during said product changeover period. |
| 11,135,818 | Pregelatinized starch with mid-range viscosity, and product, slurry and methods related thereto | 10/5/2021 | SANG, Yijun (Kevin); SONG, Weixin D. | Disclosed are product (e.g., panels), slurry, and methods relating to a pregelatinized starch having a mid-range viscosity (i.e., from about 20 centipoise to about 700 centipoise). |
| 11,168,030 | Pregelatinized starch with mid-range viscosity, and product, slurry and methods related thereto | 11/9/2021 | SANG, Yijun (Kevin); LEE, Chris C.; CHAN, Cesar, SONG, Weixin D. | Disclosed are product (e.g., panels), slurry, and methods relating to a pregelatinized starch having a mid-range viscosity (i.e., from about 20 centipoise to about 700 centipoise). |
| 11,173,629 | Continuous mixer and method of mixing reinforcing fibers with cementitious materials | 11/16/2021 | DUBEY, Ashish; GROZA, Peter B.; NELSON, Christopher R. | A method in which a stream of dry cementitious powder passes through a first conduit and aqueous medium stream passes through a second conduit to feed a slurry mixer to make cementitious slurry. The cementitious slurry passes through a third conduit and a reinforcement fiber stream passes through a fourth conduit to feed a fiber-slurry mixer which mixes the slurry and discrete fibers to make a stream of fiber-slurry mixture. An apparatus for performing the method is also disclosed. |
| 11,180,412 | Aluminate-enhanced type i portland cements with short setting times and cement boards produced therefrom | 11/23/2021 | LI, Qinghua; PENG, Yanfei | Aqueous cementitious slurries including predominantly Type I Portland cement containing an aluminate additive. The aluminate additive is an aluminate salt other than calcium aluminate or calcium sulfoaluminate, preferably sodium aluminate. Cementitious reactive powders of the slurry include the Type I Portland cement and 0.1-10 wt. % of the aluminate additive as an accelerator. The slurries may have a set time of about 10 minutes or less. Due to the short set time, the cementitious reactive powders may facilitate cement board fabrication by continuous manufacturing processes. Methods for making cement boards may include disposing the aqueous cementitious slurry including the cementitious reactive powders in a continuous layer, preferably upon a porous support, and setting the aqueous cementitious slurry with a set time of about 10 minutes or less. |
| 11,186,066 | Gypsum board from gypsum having high level of chloride salt and a perforated sheet and methods associated therewith | 11/30/2021 | HEMPHILL, Mark; LI, Qinghua; COCHRAN, Charles W. | Gypsum boards formed from synthetic gypsum and other gypsum sources having high chloride salt concentrations. The gypsum boards may include a set gypsum board core layer between a front and back paper cover sheets. The back paper cover sheet has a plurality of perforations extending therethrough. Methods of making the gypsum boards, and a wall system for employing the gypsum boards, are also provided. The concentration of the chloride anion in aqueous gypsum slurry used to make the set gypsum board core layer and to perform the methods of the invention may range from about 500 ppm to about 3000 ppm, typically from about 500 ppm to about 2000 ppm per 1,000,000 parts by weight calcium sulfate hemihydrate, more typically from about 500 ppm to about 1500 ppm per 1,000,000 parts by weight calcium sulfate hemihydrate. |
| 11,186,067 | Gypsum board from gypsum having high level of chloride salt and a starch layer and methods associated therewith | 11/30/2021 | LI, Qinghua; LU, Runhai; COCHRAN, Charles W.; HEMPHILL, Mark | Gypsum boards formed from synthetic gypsum and other gypsum sources having high chloride salt concentrations. Gypsum boards may include a board core including set gypsum. A total concentration of the chloride anion in the board core ranges from about 500 ppm to about 3000 ppm, typically about 1000 ppm to about 3000 ppm, based on weight of the calcium sulfate hemihydrate. An inner surface of a front paper cover sheet contacts a first face of the board core. An inner surface of a back paper cover sheet contacts a second face of the board core. A starch layer coats the inner surface of at least one of the front and back cover sheet. Methods of making the gypsum board, and a wall system for employing the gypsum boards, are also provided. |
| 11,186,398 | Automated carton closing and conveying device | 11/30/2021 | BURCHETT, David; WILSON, Doug; HOVANEC, Christopher | A device is provided for closing, sealing and conveying corrugated cartons having a top flap and a next adjacent flap, and includes a frame, a moving conveyor belt associated with the frame and defining a track with an inlet end and an outlet end, and a fixed bracket secured to the frame and having a first plurality of linearly aligned rollers defining a first side of the track. A movable bracket is associated with the frame, having a second plurality of linearly aligned rollers defining a second side of the track and being transversely movable relative to the track under operator control. |
| 11,220,819 | TRIPLE-LOCK MAIN TEE SPLICE | 1/11/2022 | ZHANG, Hui (Jason) | An improved connector for a main tee of a suspended ceiling grid that has multiple locking elements that increase connection tensile force properties. The connector has an end tab with a forward portion bent at a lead angle and a receiving pocket with an outwardly flared entrance that, with an opposed identical connector, cooperate to provide smooth horizontal alignment. The end portion, additionally, includes an edge profile that vertically aligns itself with the receiving pocket of the opposed connector. The receiving pocket includes a spring-like resilient wall that limits the assembly force to overcome interference with projecting lock elements. The spring-like pocket wall and shape of the lock elements contribute to an audible click signaling that a connection has been completed. One of the lock elements works with a relief groove to augment self-alignment of the connectors. |
| 11,236,234 | Joint compounds and plasters with a complexometric dye and methods | 2/1/2022 | DONOVAN, Alexander; SCHLUDE, Joseph | A building construction product comprising an ionochromic dye, wherein the building construction product has a first color when the product comprises water, wherein the first color is dependent on the presence of metal ions in solution in the product; and wherein the product has a second color when the product has solidified. Methods of monitoring setting and drying reactions of building construction products, including setting-type and drying-type joint compounds and plasters. |
| 11,267,227 | Exterior sheathing panel with integrated air/water barrier membrane | 3/8/2022 | SHAKE, Michael P.; NEGRI, Robert H.; McKNIGHT, Paula; SHIPP, Paul; ULLETT, James M.; KENNY, Timothy G.; LINK, Brett R. | An exterior sheathing cementitious panel which prevents water penetration and air leakage is provided. Methods for manufacturing exterior sheathing cementitious panels with a highly efficient integrated air/water barrier membrane are provided as well. |
| 11,267,759 | Method and system for on-line blending of foaming agent with foam modifier for addition to cementitious slurries | 3/8/2022 | VILINSKA, Annamaria; LI, Alfred C.; SONG, Weixin D. | Disclosed is a method and system for blending a foam modifier with foaming agent on-line, e.g., as may be particularly useful for gypsum or cement slurries. The foam modifier comprises a fatty alcohol that is added to a gypsum or cement slurry that includes foaming agent, such as an alkyl sulfate surfactant. The fatty alcohol can be a C6-C16 fatty alcohol in some embodiments. The use of such a foam modifier can be used, for example, to stabilize the foam, reduce waste of foaming agent, improve void size control in the final product, and improve the gypsum board manufacturing process. |
| 11,306,028 | Light weight gypsum board | 4/19/2022 | YU, Qiang; SONG, Weixin D. | This invention provides low dust low density gypsum wallboard products having high total core void volumes, corresponding to low densities in the range of about 10 to 30 pcf. The wallboards have a set gypsum core formed between two substantially parallel cover sheets, the set gypsum core preferably having a total void volume from about 80% to about 92%, and made from a slurry including stucco, pregelatinized starch, and a naphthalenesulfonate dispersant. The combination of the pregelatinized starch and the naphthalenesulfonate dispersant also provides a glue-like effect in binding the set gypsum crystals together. The wallboard formulation, along with small air bubble voids (and water voids) provides dust control during cutting, sawing, routing, snapping, nailing or screwing down, or drilling of the gypsum-containing products. This invention also provides a method of making the low dust low density gypsum products including the introduction of soap foam in an amount sufficient to form a total void volume, including air voids, preferably from about 80% to about 92% in the set gypsum core, corresponding to a set gypsum core density from about 10 pcf to about 30 pcf. The wallboards produced by the method generate significantly less dust during working. |
| 11,338,548 | Light weight gypsum board | 5/24/2022 | YU, Qiang; SONG, Weixin D. | This invention provides gypsum wallboards with a unique microstructure where the walls between voids are enhanced in thickness and strength to substantially improve the strength and handling properties of the wallboards. A method of making lightweight gypsum wallboards is also provided. |
| 11,344,854 | MIXER ROTOR PIN WITH HOLE | 5/31/2022 | DREBENSTEDT, Cass | An apparatus for inserting and removing a mixer rotor pin includes at least one rotor pin with a transverse bore, as well as a rod dimensioned for slidably engaging the transverse bore. The apparatus also includes a mixer rotor pin insertion and removal tool having a tool body. A bottom of the tool has a slot for selectively engaging the aforementioned rod upon insertion of the rod into the transverse bore, and a top of the tool has a non-circular socket for accommodating a driver tool. |
| 11,377,845 | ACOUSTIC BAFFLE ASSEMBLY | 7/5/2022 | AHMADI, Rana; HETTWER, Stephen | A circular multi-panel acoustic baffle assembly for suspending above an occupied space, the assembly including a plurality of baffle panel units each radiating away from a common center and generally lying in a vertical plane, upper edges of the baffle panel units lying in a common imaginary surface of revolution about the center, the baffle panel units being joined by common inner and outer arcuate ribs concentric with the center, radially inner ends and radially outer ends of the baffle panel units lying on imaginary circles concentric with the center. |
| 11,384,536 | CEILING GRID HANGER HOLES | 7/12/2022 | GULBRANDSEN, Peder J.; MATHIOT, Nathan; ODONNELL, Michael P. | A main tee for a suspended ceiling formed of metal sheet and having an upper reinforcing bulb, a lower flange and a web between the bulb and flange, the web having evenly spaced, generally vertical cross tee receiving slots along a length of the tee and a series of suspension wire receiving holes along the length of the tee, the lowermost edges of the holes being above a highest extremity of the cross tee slots. |
| 11,384,524 | BELOW-GRADE MODULAR ASSEMBLY | 7/12/2022 | POSPISIL, Frank; BETZ, Breton | A modular assembly is provided and includes a modular frame to be installed at least partially below grade and at least two panels attached to the modular frame, where the at least two panels are made of a material that withstands lateral, vertical and shear forces generated by surrounding below grade materials. The modular frame and the at least two panels are joined together as a unit prior to installation. |
| 11,407,145 | GYPSUM SLURRY MIXER OUTPUT CANISTER | 8/5/2022 | LASH, Jason; KRELL, Michael; EVERSOLE, Leslie; ROSARIO, Domingo | A gypsum slurry mixer output canister is provided, including a canister housing having an upper end, an opposite lower end and defining a canister interior, a cover secured to the upper end, a slurry inlet in operational relationship to the upper end, a spiral block associated with the upper end, and having a helical flow surface depending into the interior. A flow distributor is secured to the lower end and is in fluid communication with the interior, and a slurry outlet is defined by the lower canister housing end. |
| 11,414,352 | Method for making a lightweight gypsum composition with internally generated foam and products made from same | 8/12/2022 | PELOT, David D.; EMAMI, Samar; NEGRI, Robert H.; CASTANEDA, Carlos Ruiz; NELSON, Christopher R.; ROXBURGH, John J.; DE LA ROSA CRUZ, Edgar R.; GARCIA TORRES, Jorge A.; GOICOCHEA; Miguel Gama; CONTRERAS, Antonio; HUITZIL, Juan | Method of making foamed gypsum slurry having 15 to 90 volume percent gas bubbles including: passing first slurry including water and on dry basis 50 to 98 wt. % calcium sulfate hemihydrate, 1 to 50 wt. % calcium carbonate, and 0.1 to 10 wt. % cellulose thickener via a first hose to a Wye connector conduit first inlet opening at Rate C and passing alum solution via a second hose to a second inlet opening of the conduit at Rate D to create combined mixed stream passing from the conduit to a static mixer for mixing for Time 3 to activate at least a portion of the calcium carbonate and alum to generate CO2 and create the foamed gypsum slurry; transferring the slurry from the mixer to a cavity between two wall boards via a third hose. Allowing the slurry in the cavity to expand, harden and dry. |
| 11,453,613 | JOINT COMPOUNDS, ACTIVATORS AND METHODS FOR SETTING A JOINT COMPOUND AND PREVENTING SEED SETTING | 9/27/2022 | ROSENTHAL, Guy L.; MILLER, Charles J.; KINCAID, Tyler; SCHLUDE, Joseph | A ready-mixed setting type joint compound in which formation of gypsum seeds has been inhibited. A method for controlling a setting reaction by mixing a ready-mixed setting type joint compound with one or more metal ion control agents comprising aminopolycarboxylic acid and/or a salt thereof, and further mixing the setting type joint compound with one or more non-calcium phosphate compounds. The method may further comprise mixing the setting type joint compound with a set activator obtained by blending together a first set activator including a cadmium compound, lead compound and/or zinc compound and a second set activator including a ferrous compound, aluminum compound and/or manganese compound. |
| 11,466,453 | Wallboard punch assembly with stripper bushings | 10/11/2022 | LEHANE, James J.; GULBRANDSEN, Peder John | A punch assembly for creating clean holes in a wallboard sheet having at least one surface with a face paper layer. The punch assembly includes a frame having a lower assembly configured to support the wallboard sheet, a plate on an upper frame assembly being reciprocable relative to the at least one surface of the wallboard sheet, at least one stripper bushing connected to the plate, where the at least one stripper bushing including a hole and a piercing edge, and at least one punch configured to move through the hole in the at least one stripper bushing. In operation, the plate is moved against the at least one surface of the wallboard sheet so that the piercing edge of the at least one stripper bushing contacts the face paper layer and at least partially cuts the face paper layer prior to the at least one punch moving through the wallboard sheet to form at least one clean hole in the wallboard sheet. |
| 11,518,141 | Water barrier exterior sheathing panel | 12/6/2022 | DONELAN, Jeffrey W.; SHAKE, Michael P.; RAO, Ajith M.; ULLETT, James M.; PENG, Yanfei | An exterior sheathing cementitious panel which prevents water penetration and air leakage is provided. Methods for manufacturing exterior sheathing cementitious panels with a highly efficient integrated air/water barrier sheet are also provided. An exterior sheathing system employing the exterior sheathing cementitious panel is provided |
| 11,560,338 | SNAP-SET, READY-MIX JOINT COMPOUND | 1/24/2023 | STEVENS, Richard B.; MILLER, Charles J. | A joint compound system includes a set-inhibited, pre-wetted, setting-type, ready-mix joint compound and a set initiator. The set-inhibited, pre-wetted, setting-type joint compound includes a ready-mixed, setting-type joint compound base with a calcium-free phosphate set preventing agent that impedes chemical hydration of a gypsum component of the setting-type joint compound. The joint compound base is free of calcium carbonate. The set initiator includes alum to reinitiate the chemical hydration reactions. |
| 11,560,714 | CONDUCTIVE PAPER FOR MAKING ELECTROACTIVE SURFACE IN CONSTRUCTION | 1/24/2023 | SINHA RAY, Suman; IMMORDINO, Salvatore C.; JOSEPH, Mark; ROSENSTIEL, Terry L.; WHITE, William O. | A building construction product with an electroconductive surface, the building construction product comprising a core with one or more surfaces covered by an electroconductive paper comprising carbon fibers, the electroconductive paper being attached to the one or more surfaces of the core. Methods and materials for producing the building construction products with an electroconductive surface and products and methods for shielding an area from electromagnetic waves. |
| 11,584,690 | Multi-layer gypsum board and related methods and slurries | 2/21/2023 | VILINSKA, Annamaria; LI, Alfred C. | Disclosed is a composite gypsum board comprising a board core and a concentrated layer, as well as related methods of preparing board and slurries. The board core and the concentrated layer both are formed from water and stucco. The concentrated layer is designed to have higher density and/or nail pull than the core. The concentrated layer is further formed from a polysaccharide that forms a complex with calcium ions, e.g., an alginate compound such as sodium alginate. In some embodiments, the concentrated layer is formed from an enhancing additive to enhance strength therein, while the core is formed without using enhancing additive or less enhancing additive than used in forming the board core. |
| 11,597,677 | Wool surface treated with hydrophobic agent and acoustic panels made therefrom | 3/7/2023 | LUAN, Wenqi; BROWN, Martin; YU, Qing; BOGEN, Scott A.; FIGI; Carlos | A method of preparing a fibrous panel including surface treating a mineral wool with a water repellent agent to provide a water-repellent surface treated mineral wool, admixing the water-repellent surface-treated mineral wool with water to provide a slurry, and dewatering and drying the slurry to provide a fibrous panel. A method of preparing a mineral wool having a surface treated with a water repellent agent including contacting a water repellent agent emulsion with a mineral wool and drying the mineral wool, and a method of preparing a water-repellent surface-treated fibrous panel including mineral wool having a surface pre-treated with a water repellent agent are also provided. |
| 11,608,636 | T-GRID TO BAFFLE BAR BRACKET | 3/21/2023 | UNDERKOFLER, Abraham M.; GULBRANDSEN, Peder J.; KREME, Eric H.; ALNAKKAR, Faris | An elongate sheet metal body for attachment to the web of a grid tee, the body having a substantially right angle cross-section formed by legs that in use are vertical and horizontal, respectively, the vertical leg having a width adapted to fit against the web between a reinforcing bulb and lower flange of the tee, the horizontal leg having a width at least that of the width of a portion of the flange portion extending from the web to a free edge of the flange, the horizontal leg having at a free edge a plurality of depending lugs spaced uniformly from one another with a common center to center distance, the lugs having a horizontal width sized to fit into U-shaped baffles such that said baffles carried on said lugs have the same center to center distance as the lugs. |
| 11,674,306 | Smart dynamic acoustic ceiling panel | 6/13/2023 | IMMORDINO, Salvatore; ROSENSTIEL, Terry; JOSEPH, Mark; LUHTALA, Erik; SCHMIDT, Andrew; NATESAIYER, Kumar | A dynamic acoustic system for use in connection with an indoor environment includes a plurality of elongated acoustic bars and a controller operably to each of the elongated acoustic bars. Each of the bars is operably coupled to a ceiling member of the indoor environment and includes an upper portion, a lower portion, a plurality of side surfaces extending between the upper and lower portions, an interior region at least partially defined by the upper portion, the lower portion, and the plurality of side surfaces, and at least one movable element movable between first and second positions. The controller selectively controls operation of the at least one movable element of a desired number of the plurality of elongated acoustic bars to alter an environmental characteristic of the indoor environment. |
| 11,674,317 | Apparatus and process with a vibratory angled plate and/or fixed horizontal plate for forming fiber-reinforced cementitious panels with controlled thickness | 6/13/2023 | GROZA, Peter Brandon; BLACKBURN, David R.; DUBEY, Ashish; STIVENDER, Eugene Scott; BAUER, Andrew Henry; RAITANI, Rajesh; McCARTNEY, Nicholas | A production line and process including a moving carrier web for transporting the panel, and a device for controlling thickness of a formed, but not yet set, fiber reinforced cementitious panel slurry on the web. The thickness control device may include an angled rigid plate for contacting a downstream end of the angled plate with the slurry on the moving carrier web and a mounting stand for mounting the angled rigid. The thickness control device may include a flat horizontal plate at a fixed height over the moving carrier for contacting the entire lower surface of the horizontal plate with a facer on the slurry on the moving carrier web. Or, the thickness control device may include the angled plate and include the horizontal plate that contacts the facer. |
| 11,692,345 | MODULAR DYNAMIC ACOUSTIC CEILING PANEL | 7/4/2023 | HETTWER, Stephen; GRITCAI ,Oksana | A modular dynamic acoustic system for use in connection with an indoor environment includes a movable panel array, a support structure, and a plurality of suspension members. The movable panel array includes a plurality of panel members, each of which including a body defining at least one edge, at least one hinge positioned along the at least one edge, and at least one mounting structure. The panel members are operably coupled with at least one adjacent panel member via the at least one hinge. Each of the plurality of suspension members is operably coupled with the support structure and the at least one mounting structure of one of the plurality of panel members to secure the movable panel array to the support structure. Each of the suspension members is movable to modify a configuration of the movable panel array. |
| 11,702,373 | GYPSUM WALLBOARD WITH ENHANCED FIRE RESISTANCE, AND RELATED COATINGS AND METHODS | 7/18/2023 | LI, Qinghua; ALDABAIBEH, NASER; HEMPHILL, Mark K; RISCHE, Trevor S.; SINHA RAY, Suman | Disclosed are an organic binder-based coating; a composite gypsum board containing face and back cover sheets, an outside surface of the back cover sheet bearing the coating; and a method of preparing composite board where the back cover sheet contains the coating on its outer surface. The coating is formed from a composition comprising an alkaline silicate, a solid filler, and optionally, a borate. An enhancing layer can also be applied to the back cover sheet. |
| 11,702,839 | MISSILE IMPACT RESISTANT EXTERIOR SHEATHING BUILDING PANEL | 7/18/2023 | KENNY, Timothy G.; SHAKE, Michael P | An impact resistant exterior sheathing gypsum building panel with an integrated impact resistant woven mesh which protects against impact from projectiles such as those conveyed by hurricane force winds is provided. Methods for manufacturing these exterior sheathing gypsum building panels with an integrated impact resistant woven mesh are also provided. An exterior sheathing system employing the exterior sheathing cementitious building panel is provided. |
| 11,753,550 | BORATE AND SILICATE COATING FOR IMPROVED ACOUSTICAL PANEL PERFORMANCE AND METHODS OF MAKING SAME | 9/12/2023 | LI, Qinghua; ALDABAIBEH, NASER | This invention is related to a previous patent application (4709). In the previous application, sodium silicate was used to make a sag resistant coating for ceiling tiles. It was found that the addition of aqueous solution of Borate-based salt to the liquid sodium silicate binder and at the same time increasing the amount of silicate binder in the coating formula significantly improves the sag performance. The present invention is a formaldehyde-free coating based on a layer of inorganic binder and a layer of enhancing agent. The inorganic binder layer comprises a liquid inorganic binder that is mixture of silicate and borate salts in aqueous solutions and solid fillers that can be minerals or solid wastes. The enhancing layer comprises an enhancing agent that has a mild acidic pH, such as calcium chloride, aluminum sulfate, iron chloride, phosphoric acid, acetic acid and solid additives that can be minerals or solid wastes. The formaldehyde-free coating can be a single layer of inorganic binder or multiple layers comprising multiple layers of inorganic binder or the combination of the inorganic binder layer and the enhancing layer. When the coating is applied to the back side of ceiling panels and cured at high temperature, the panels exhibit anti-sag properties which are very similar to the melamine formaldehyde based back coating. |
| 11,760,692 | SETTING TYPE JOINT COMPOUND COMPOSITIONS WITH REDUCED PLASTER | 9/19/2023 | HUCH, Christian; DONOVAN (former USG), Alexander J.; GRUSSING (retired), Jeffrey F; PUNATI, Naveen Kumar; HARGROVE (retired), Pamela L; SCHLUDE, Joseph W | Setting type joint compound composition with reduced plaster than conventional formulations. This new composition will be more cost effective and have better "snap-set" behavior, which is desired by most customers to ensure optimal workability and application properties. |
| 11,760,689 | METHODS OF REMOVING CHLORIDE FROM GYPSUM HAVING HIGH LEVEL OF CHLORIDE SALT | 9/19/2023 | LI, Qinghua; DUBEY, Ashish; HEMPHILL, Mark Kenneth (updated 10/2/23) | Porous beads such as activated alumina beads, zeolite beads and silica gel beads, are used as chloride salt absorbers. Porous beads are mixed with as-received high-salt synthetic gypsum in the shaker. After mixing for a short time, the mixtures are dried, and the beads and the powder are separated by using sieve. It is found that the porous beads remove a large amount of chloride salts from the high-salt synthetic gypsum and produce a low-salt synthetic gypsum used for wallboard production. |
| 11,773,020 | GYPSUM COMPOSITION COMPRISING UNCOOKED STARCH HAVING MID-RANGE VISCOSITY, AND METHODS AND PRODUCTS RELATED THERETO | 10/3/2023 | SANG, Yijun (Kevin); CHRIST (retired), Brian J | Uncooked starch with a mid-range peak viscosity (100 BU to 900 BU at 15% solids) was used as a strength additive in gypsum panel. The peak viscosity of uncooked starch is related to the molecular weight of the starch, in turn related to how well the starch molecules move out of the starch granules and strengthen the core. The new starches have a lower cold water viscosity than pregelatinized starches (10 centipoise vs. >90 centipoise). The new starch reduced water demand by more than 20% compared to pregelatinized starches without affecting mixer load and nail pull strength. Bulk density of the new starch is more heavier and consistent than pregelatinized starches. Pregelatinized starches are known for their inherent large variability of bulk density, which commonly vary between 27 pcf to 32 pcf. This large variability of pregelatinized starch could cause inaccurate feed of starch. |
| 11,780,113 | LIGHTWEIGHT, REDUCED DENSITY FIRE RATED GYPSUM PANELS | 10/10/2023 | YU, Qiang (former employ; VEERAMASUNENI, SRINIVAS; SONG, Weixin D; LUAN (former USG), WENQI | Grade #4 Vermiculite from WR Grace (and/or Virginia Vermiculite) is found to significantly enhance the fire performance and system's integrity (thickness expansion, joint opening & board sagging reduction) of 1800# light-weight 5/8" FC Type-X gypsum board in full-scale fire tests. Grade #4 vermiculite has larger particle size and greater high-temperature expansion as compared to existing Grade #5 vermiculite used for FC Type-C board production. Grade #4 vermiculite can be used in all fire code gypsum board products. The new grade vermiculite will provide great potential for board weight reduction and cost savings in 5/8" Firecode Type-X board production (2175 lb/msf minimum board weight and 4.5 lb/msf minimum glassfiber addition). |
| 11,787,739 | FLOUR BINDER FOR GYPSUM BOARD, AND RELATED METHODS, PRODUCT, AND SLURRIES | 10/17/2023 | SANG, Yijun (Kevin); HEMPHILL, Mark Kenneth (updated 10/2/23) | A wallboard binder was made from corn flour. The invention widened the raw material source for wallboard binder. The process to make this new binder is more environmentally friendly compared to conventional wet milling and slurry acid-modification process. The binder have low water demand since the flour is uncooked. |
| 11,802,006 | PALLET CENTERING DEVICE | 10/31/2023 | WIGINGTON, Dakota; LEWIS, Cody; BOWERS, Gary | The pallet centering device is a unit to dependably align and straighten multiple pallet configurations from three different palletizer lines before they individually enter the stretch hooder for final packaging. |
| 11,834,374 | ACCELERATOR COMPRISING STARCH, AND RELATED BOARD, SLURRIES, AND METHODS | 12/5/2023 | SANG, Yijun (Kevin); HEMPHILL, Mark Kenneth (updated 10/2/23); KIM (former USG), Yongman; BARBER, James W | Starch has been used as a coating agent to prepare heat resistant accelerator (HRA) from gypsum (calcium sulfate dihydrate). However, the hydration efficiency of the HRA made from starches hasn?t been able to compete with HRA made from sugars, such as dextrose and sucrose. Sugars are expensive and wallboard containing sugars are prone to grow mold. A starch was highly acid-hydrolyzed to have a cold-water solubility higher than 21% and a Brabender viscosity of 11 BU at 92?C and a solids concentration of 30%. The new starch showed better protection from calcination and higher HRA efficiency than regular existing starches. |
| 11,834,375 | FIRE RESISTANT GYPSUM BOARD AND RELATED METHODS | 12/5/2023 | LI, Qinghua; HEMPHILL, Mark Kenneth (updated 10/2/23); PUNATI, Naveen Kumar | Adding additives such as unexpanded vermiculite, expandable graphite, and perlite etc, at higher percentage levels (compared to the main core) to the top ELS layer attached to back paper (Newsline) or two edges (tapers) of the board will provide better fire performance compared to adding these additives either uniformly in the core or in the ELS attached to the face paper (manila). |
| 11,865,579 | HYBRID COATING PROCESS | 1/9/2024 | BROCKWELL, Deirdre; KELLER, Adam; DAVIS, Wanwisa | The invention is a ceiling tile surface process that utilizes a prime coat applied by curtain coater on a high airflow veil, then finishes with a spray applied coat, overall mimicking the appearance of fully sprayed finishes, which can be more expensive. The invention allows for a lower cost of finishing while maintaining aesthetic and acoustic results. The high airflow veil and coating used in the curtain process are both different from current materials used in USG's veiled product finishing. |
| D1013212 | LINEAR CEILING CHANNEL | 1/30/2024 | HETTWER, Stephen; PETERSON, Cory | Expanded Metal Barz is a new linear design using our expanded metal and forming them into a baffle/linear shape and laying them out in a linear fashion. |
| 11,885,129 | CONSTRUCTION PRODUCTS WITH AN ACOUSTICALLY TRANSPARENT COATING | 1/30/2024 | LI former USG, DONGHONG | Finished coating over ceiling tile surfaces with acoustically transparent performance will be very important to provide the highest acoustical and appearance performance possible. Typically the coating will increase the coverage and hiding to provide the desired color and appearance, and at the same time, the coating will negatively affect the acoustical performance due to the surface openings being reduced by the coating film. A coating film with surface cracking or holes would help to keep both the targeted acoustical performances and high hiding (light reflectance for white color) at the same time. Several approaches from coating formulations were evaluated and the lab bench work indicated encouraging results. |
| 11,884,040 | LIGHT WEIGHT GYPSUM BOARD | 1/30/2024 | YU, Qiang (former employ; SONG, Weixin D | A - The invention generally provides gypsum-containing slurries including stucco, trimetaphosphate salt, and naphthalenesulfonate dispersant, wherein the trimetaphosphate salt is present in an amount of at least about 0.12% by weight based on the weight of stucco. Other slurry additives can include accelerators, binders, starch, and paper fiber, glass fiber, and other known ingredients. The invention also comprises the gypsum-containing products made with such slurries, for example, gypsum wallboard, and a method of making gypsum wallboard. "B" - The invention generally provides gypsum-containing slurries including stucco, naphthalenesulfonate dispersant, and pregelatinized starch. The naphthalenesulfonate dispersant is present in an amount of about 0.1% ? 3.0% by weight based on the weight of dry stucco. The pregelatinized starch is present in an amount of at least about 0.5% by weight up to about 10% by weight of pregelatinized starch by weight based on the weight of dry stucco in the formulation. Other slurry additives can include trimetaphosphate salts, accelerators, binders, paper fiber, glass fiber, and other known ingredients. The invention also comprises the gypsum-containing products made with such slurries, for example, gypsum wallboard, and a method of making gypsum wallboard. "C" - This invention provides low dust low density gypsum wallboard products having high total core void volumes, corresponding to low densities in the range of about 10 to 30 pcf. The wallboards have a set gypsum core formed between two substantially parallel cover sheets, the set gypsum core preferably having a total void volume from about 80% to about 92%, and made from a slurry including stucco, pregelatinized starch, and a naphthalenesulfonate dispersant. The combination of the pregelatinized starch and the naphthalenesulfonate dispersant also provides a glue-like effect in binding the set gypsum crystals together. The wallboard formulation, along with small air bubble voids (and water voids) provides dust control during cutting, sawing, routing, snapping, nailing or screwing down, or drilling of the gypsum-containing products. This invention also provides a method of making the low dust low density gypsum products including the introduction of soap foam in an amount sufficient to form a total void volume, including air voids, preferably from about 80% to about 92% in the set gypsum core, corresponding to a set gypsum core density from about 10 pcf to about 30 pcf. The wallboards produced by the method generate significantly less dust during working. "D" The invention generally provides a light weight composite gypsum board including a foamed low density set gypsum core, a top non-foamed (or reduced-foamed) bonding high density layer and a bottom non-foamed (or reduced-foamed) bonding high density layer, a top cover sheet bonded to the foamed low density set gypsum core by the top non-foamed (or reduced-foamed) bonding high density layer, and a bottom cover sheet bonded to the foamed low density set gypsum core by the bottom non-foamed (or reduced-foamed) bonding high density layer. The foamed low density set gypsum core and the non-foamed (or reduced-foamed) bonding high density layers are made from a gypsum slurry including stucco, pregelatinized starch present in an amount of about 0.5 ? 10% by weight based on the weight of stucco, preferably a naphthalenesulfonate dispersant present in an amount of about 0.1 ? 3.0% by weight based on the weight of stucco, and preferably sodium trimetaphosphate present in an amount of about 0.12 ? 0.4% by weight based on the weight of stucco. Other slurry additives can include accelerators, binders, paper fiber, glass fiber, and other known ingredients. The foamed low density set gypsum core is prepared having a density of less than about 30 pcf using soap foam in the gypsum-containing slurry. The combination of components provide a composite gypsum board having light weight and high strength. A method of making the composite gypsum board is also provided. "E" - This invention provides gypsum wallboards with a unique microstructure where the walls between voids are enhanced in thickness and strength to substantially improve the strength and handling properties of the wallboards. A method of making lightweight gypsum wallboards is also provided. "F" - This invention comprises the use of ethylated starch in the wallboard formulation. The purpose is to enhance fluidity while maintaing or improving nail pull performance. |
