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Class Information
Number: 156/346
Name: Adhesive bonding and miscellaneous chemical manufacture > Plaster board making apparatus
Description: Apparatus particularly adapted to making sheets of settable inorganic material covered on both faces with a preformed sheet material.










Sub-classes under this class:

Class Number Class Name Patents
156/348 With edge treatment means 17
156/347 With surface deformation means 13


Patents under this class:

Patent Number Title Of Patent Date Issued
8685188 Apparatus and method for fractionating gypsum slurry and method of producing gypsum board Apr. 1, 2014
8475762 Method and apparatus to minimize air-slurry separation during gypsum slurry flow Jul. 2, 2013
8388926 System and method for the production of gypsum using heat recovery Mar. 5, 2013
8382923 Apparatus and method for manufacturing gypsum board Feb. 26, 2013
8277605 Thermosetting solution composition and prepreg Oct. 2, 2012
8177541 Gypsum board forming device with improved slurry spread May. 15, 2012
7955587 System and method for the production of alpha type gypsum using heat recovery Jun. 7, 2011
7921800 System and method for coating a fire-resistant material on a substrate Apr. 12, 2011
7811413 Apparatus for targeted delivery of additives to varying layers in gypsum panels Oct. 12, 2010
RE41592 Method of producing gypsum/fiber board Aug. 31, 2010
7754052 Process and apparatus for feeding cementitious slurry for fiber-reinforced structural cement panels Jul. 13, 2010
7686902 Method of fabricating plaster board Mar. 30, 2010
7654807 Method and system for generating foam for the manufacture of gypsum products Feb. 2, 2010
7588832 Process and device for wetting wood fibers with a binding fluid Sep. 15, 2009
7498014 System and method for the production of alpha type gypsum using heat recovery Mar. 3, 2009
6998359 Article and process for maintaining orientation of a fiber reinforced matt layer in a sandwiched urethane construction Feb. 14, 2006
6986812 Slurry feed apparatus for fiber-reinforced structural cementitious panel production Jan. 17, 2006
6866492 Gypsum board forming device Mar. 15, 2005
6800174 System for making wallboard or backerboard sheets including aerated concrete Oct. 5, 2004
6733261 Apparatus for smooth surface gypsum fiberboard panels May. 11, 2004
6638393 Apparatus for manufacture of improved structural panel Oct. 28, 2003
6535785 System and method for monitoring and controlling gas plasma processes Mar. 18, 2003
6488792 Method and apparatus for manufacturing cementitious panel with reinforced longitudinal edge Dec. 3, 2002
6483707 Heat sink and thermal interface having shielding to attenuate electromagnetic interference Nov. 19, 2002
6471799 Method and device for producing gypsum boards Oct. 29, 2002
6416619 System for making wallboard or backerboard sheets including aerated concrete Jul. 9, 2002
6351683 System and method for monitoring and controlling gas plasma processes Feb. 26, 2002
6340388 Strengthened, light weight wallboard and method and apparatus for making the same Jan. 22, 2002
6319312 Strengthened, light weight wallboard and method and apparatus for making the same Nov. 20, 2001
6190476 Gypsum board manufacture with co-rotating spreader roller Feb. 20, 2001
6059907 Process for preparing incombustible board for interior decoration and facing of architectures May. 9, 2000
6045730 Process monitor for gypsum board manufacturing Apr. 4, 2000
5997779 Temperature monitor for gypsum board manufacturing Dec. 7, 1999
5912805 Thermal interface with adhesive Jun. 15, 1999
5718797 Apparatus for manufacturing gypsum board Feb. 17, 1998
5714032 Method of manufacturing multilayer plasterboard and apparatus therefor Feb. 3, 1998
5683635 Method for preparing uniformly foamed gypsum product with less foam agitation Nov. 4, 1997
5632848 Continuous processing equipment for making fiberboard May. 27, 1997
5498309 Apparatus for continuously producing plates having a structured surface Mar. 12, 1996
5472551 Apparatus for producing plate-shaped bodies made of a mixture of plaster and fibrous materials Dec. 5, 1995
5256222 Lightweight building material board Oct. 26, 1993
4488917 Method for making cement board Dec. 18, 1984
4450022 Method and apparatus for making reinforced cement board May. 22, 1984
4420295 Apparatus for manufacturing cementitious reinforced panels Dec. 13, 1983
4364790 Apparatus for making plaster board Dec. 21, 1982
4057443 Foamed gypsum wallboard Nov. 8, 1977











 
 
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