| Patent Number |
Title Of Patent |
Date Issued |
| D299755 |
Decorative sliding door |
February 7, 1989 |
|
| D299754 |
Decorative sliding door |
February 7, 1989 |
|
| 5954497 |
Method for multi-stage calcining of gypsum to produce an anhydrite product |
September 21, 1999 |
| 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 firs |
| 5743728 |
Method and system for multi-stage calcining of gypsum to produce an anhydrite product |
April 28, 1998 |
| 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 firs |
| 5643510 |
Producing foamed gypsum board using a foaming agent blend |
July 1, 1997 |
| 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 |
| 4771687 |
Belt transfer printing of nonplanar articles |
September 20, 1988 |
| Apparatus and method for belt transfer printing of nonflat surfaces of porous articles wherein the printing of the article by a first region of the belt is carried out substantially simultaneously with the inking of a second region of the belt. In a preferred embodiment, the apparatus |
| 4724650 |
Subceiling beam intersection |
February 16, 1988 |
| An intersection spacer is disclosed for use in a subceiling structure of a grid of open-ended runner beams and intersecting open-ended cross beams, the intersection spacer being generally square in horizontal cross section with inverted vertical corner edges forming four outwardly direct |
| 4698946 |
Intersecting partitions adapted to support corner-mounted furniture |
October 13, 1987 |
| Hang-on furniture supporting studs standing independently at the intersection of wallboard partitions are tied together by an intersection stud for proper orientation and stabilization. |
| 4681644 |
Accelerator for gypsum plaster and process of manufacture |
July 21, 1987 |
| A setting accelerator for calcined gypsum plaster and a process for its preparation are disclosed. The accelerator comprises finely ground calcium sulfate dihydrate having composite coatings on the particles of firstly a calcination inhibiting material such as sugar and secondly a coatin |
| 4657594 |
Lightweight joint compound |
April 14, 1987 |
| Expanded perlite coated with an amino-functional siloxane and a silicone wetting agent, and a joint compound incorporating same, which, when applied to gypsum wallboard, has improved bonding properties and greater uniformity in paint gloss appearance between the surface of the joint |
| 4633614 |
Adjustable tub enclosure and shower stall doors |
January 6, 1987 |
| A structure comprising movable doors for use in tub enclosures or shower stalls, each door having a frame and a panel mounted in the frame, and adjustment apparatus for raising or lowering one side of the door to compensate for out-of-plumb wall conditions, the adjustment apparatus c |
| 4525388 |
Process for expanding and coating perlite |
June 25, 1985 |
| 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 |
| 4520073 |
Pressure coating of mineral fillers |
May 28, 1985 |
| 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 |
