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| Number | Title | Issue Date |
| 7431783 | Method and apparatus for production of plaster plates having 4 tapered edges A method for producing plaster plates (44), according to which two fine cardboard-covered sheets of paper (8, 9) enclose a plaster-based hydraulic binder (10) in a shaping device (13), creating a composite band (45) that is hardene... | 10/07/2008 |
| 7223311 | Method and apparatus for fabricating gypsum board A method enables gypsum/fiber board to be manufactured such that recessed areas are formed on the same face of the cut wallboard on all four edges without interrupting the production line. The system accommodates different lengths of cut wallboard as the lateral cut... | 05/29/2007 |
| 7172403 | Apparatus for preparing a gypsum wallboard core A gypsum wallboard core, and methods and apparatus for making the same are disclosed. Methods of making a gypsum wallboard core include extruding a gypsum slurry containing water, gypsum, slip agents, water-reducing agents, surfactants and, optional additives, throu... | 02/06/2007 |
| 6976345 | Cementitious based structural lumber product and externally reinforced lightweight retaining wall system The invention includes a method for constructing buildings using non-wood construction products and buildings constructed from such non-wood construction products. The invention further includes a method and apparatus for manufacturing high-performance fiber-reinfor... | 12/20/2005 |
| 6931814 | Devices for positioning and tapering the edges of adjacent wallboards and methods for using same An apparatus is disclosed for reshaping a butt joint formed by a pair of adjacent butt edges of mounted wallboards. The apparatus has tapering means, which includes a body with a pair of beveled surfaces for contacting and simultaneously tapering the adjacent butt e... | 08/23/2005 |
| 6866492 | Gypsum board forming device A gypsum board forming device having a gypsum forming station including two laterally disposed edger shoes, and at least one laterally disposed edger bar clamping element on the edger bar. In one embodiment a laterally extending forming plate extends over the top su... | 03/15/2005 |
| 6800174 | System for making wallboard or backerboard sheets including aerated concrete A system for making wallboard or backerboard sheets may include a mixer for mixing materials for making aerated concrete, at least one face layer supply, and a former downstream from the mixer. The former is for forming core material having opposing first and second... | 10/05/2004 |
| 6692607 | Method of manufacturing a molded multilayer article Molten polymers are forced into T dies combined to form a multiple T die, the molten polymers are extruded through the T dies as monolayers. The monolayers extruded through the T dies are superposed and laminated outside the multiple T die while the polym... | 02/17/2004 |
| 6535785 | System and method for monitoring and controlling gas plasma processes A system and method for monitoring the conditions in a gas plasma processing system while varying or modulating the RF power supplied to the system, so that resulting signals of the electrical circuits of the system provide information regarding operation... | 03/18/2003 |
| 6488792 | Method and apparatus for manufacturing cementitious panel with reinforced longitudinal edge A cementitious panel comprising a cementitious core which is fabric-reinforced at the surface thereof and whose longitudinal edges are reinforced by a network of fibers. A panel may be obtained wherein the surface edge reinforcement layers are relatively ... | 12/03/2002 |
| 6416619 | System for making wallboard or backerboard sheets including aerated concrete A system for making wallboard or backerboard sheets may include a mixer for mixing materials for making aerated concrete, at least one face layer supply, and a former downstream from the mixer. The former is for forming core material having opposing first... | 07/09/2002 |
| 6394440 | Dual orientation leveling platform for semiconductor apparatus A platform is held atop a vertically moveable dual position leveling base by three draw screws, three push screws, and three spring-loaded pins. The leveling base is configured to secure and orient the platform such that an upper surface of the platform i... | 05/28/2002 |
| 6351683 | System and method for monitoring and controlling gas plasma processes A system and method for monitoring the conditions in a gas plasma processing system while varying or modulating the RF power supplied to the system, so that resulting signals of the electrical circuits of the system provide information regarding operation... | 02/26/2002 |
| 6126779 | Plasma gas processing A plasma enhanced gas reactor including a reaction chamber having a pair of field-enhancing electrodes each of which has an axial passage through it by one of which a reactant gas is admitted to the reaction chamber, and by the other of which reaction pro... | 10/03/2000 |
| 5221386 | Cement board having reinforced edges 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 bel... | 06/22/1993 |
| 5127978 | Tire building form having coaxial discs A method of manufacture of a tire in which a carcass ply is formed by winding a continuous cord around a pair of spaced members to form a ply (31) having loops (36) at its edges. The cord ply is rubberized and support elements (32)(33) are located in the ... | 07/07/1992 |
| 4996539 | Label printer A label printer includes a thermal printer section and a keyboard. The label printer further includes an I/O port to which a memory card storing information of label issuing condition including a preset number of printing formats is electrically connected... | 02/26/1991 |
