US Patent No: 5,350,554

Number of patents in Portfolio can not be more than 2000

Method for production of reinforced cementitious panels

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Abstract

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A method and apparatus for producing light-weight construction panels having a cementitious core layer surfaced with a layer of reinforcing fabric bonded to the two faces of the core includes the use of slurry applicator having a supporting member and a doctor in addition to a moving carrier for the slurry coated fabric. The edges of the panel also are covered with the fabric and may be open mesh edges. Cementitious slurry, for example, portland cement slurry, is applied to the fabric by means of a supporting member over which the fabric is drawn and a doctor means adjustably mounted above the supporting member. The supporting member is of a non-base-reactive material such as polypropylene or stainless steel; the use of such a supporting member permits better application of the slurry to the fabric before placement of the slurry coated fabric on the moving carrier.

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Patent Owner(s)

Patent OwnerAddressTotal Patents
CUSTOM BUILDING PRODUCTS, INC.SEAL BEACH, CA24

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Miller, Robert G Bath, OH 48 723

Cited Art Landscape

Patent Info (Count) # Cites Year
 
UNITED STATES GYPSUM COMPANY (5)
4,450,022 Method and apparatus for making reinforced cement board 71 1982
4,518,652 Method for forming a lightweight cementitious structural product and product formed thereby 46 1983
4,504,335 Method for making reinforced cement board 50 1983
4,488,917 Method for making cement board 22 1983
4,916,004 Cement board having reinforced edges 56 1988
 
CUSTOM BUILDING PRODUCTS, INC. (2)
4,816,091 Method and apparatus for producing reinforced cementious panel webs 44 1987
5,030,502 Cementitious construction panel 27 1990
 
G-P GYPSUM CORPORATION (2)
4,647,496 Use of fibrous mat-faced gypsum board in exterior finishing systems for buildings 116 1984
4,810,569 Fibrous mat-faced gypsum board 90 1987
 
Bayer Aktiengesellschaft (1)
4,270,889 Equipment for the continuous production of foam boards 4 1979
 
EPSI Brevets et Participations S.A. (1)
4,369,025 Apparatus for manufacturing elements by means of a hardenable binding agent to which a liquid is added 41 1980
 
GLASCRETE, INC. (1)
4,793,892 Apparatus for producing reinforced cementitious panel webs 29 1987
 
INTERNATIONAL PAPER COMPANY (1)
4,477,495 Method and apparatus for preparing thermoplastic coated webs and products thereof 6 1982
 
Kurimoto Iron Works, Ltd. (1)
4,411,723 Glass fiber-reinforced cement plates 23 1981
 
Maschinenfabrik Hennecke GmbH (1)
4,200,603 Process and equipment for the continuous production of block-shaped foam 4 1978
 
MODULARS, INC. (1)
RE32038 Methods for manufacturing cementitious reinforced panels 10 1982
 
Saint-Gobain Industries (1)
4,364,790 Apparatus for making plaster board 16 1980
 
Other [Check patent profile for assignment information] (2)
4,298,413 Method and apparatus for producing concrete panels 43 1980
4,907,531 Drawdown machines 2 1988

Patent Citation Ranking

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Patent Info (Count) # Cites Year
 
UNITED STATES GYPSUM COMPANY (13)
6,508,895 Method of producing gypsum/fiber board 10 1999
6,475,313 Process for making gypsum board having improved through-penetration strength 16 2000
7,364,676 Slurry spreader for cementitious board production 3 2005
7,897,079 Method and apparatus for scrim embedment into wet processed panels 0 2006
7,754,052 Process and apparatus for feeding cementitious slurry for fiber-reinforced structural cement panels 0 2006
7,524,386 Method for wet mixing cementitious slurry for fiber-reinforced structural cement panels 7 2006
7,513,963 Method for wet mixing cementitious slurry for fiber-reinforced structural cement panels 2 2006
7,475,599 Wet slurry thickness gauge and method for use of same 0 2006
8,137,490 Process of manufacturing cement based armor panels 0 2009
8,061,257 Cement based armor panel system 4 2009
8,062,741 Cement based laminated armor panels 0 2009
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 4 2009
8,038,915 Panel smoothing process and apparatus for forming a smooth continuous surface on fiber-reinforced structural cement panels 0 2010
 
BPB LIMITED (4)
6,878,321 Method of manufacture of glass reinforced gypsum board and apparatus therefor 32 2001
6,866,492 Gypsum board forming device 15 2002
7,435,369 Method for targeted delivery of additives to varying layers in gypsum panels 8 2004
7,811,413 Apparatus for targeted delivery of additives to varying layers in gypsum panels 1 2008
 
INNOVATIVE TECHNOLOGIES ENTERPRISES CORPORATION (3)
6,251,979 Strengthened, light weight wallboard and method and apparatus for making the same 20 1999
6,319,312 Strengthened, light weight wallboard and method and apparatus for making the same 35 1999
6,340,388 Strengthened, light weight wallboard and method and apparatus for making the same 14 2000
 
SAINT-GOBAIN ADFORS CANADA, LTD. (3)
6,254,817 Reinforced cementitious boards and methods of making same 13 1998
7,045,474 Reinforced cementitious boards and methods of making same 5 2001
7,300,515 Facing material with controlled porosity for construction boards 12 2005
 
CERTAINTEED GYPSUM, INC. (2)
8,177,541 Gypsum board forming device with improved slurry spread 1 2007
8,834,145 Gypsum board forming device with improved slurry spread 0 2012
 
NATIONAL GYPSUM PROPERTIES, LLC (2)
6,187,409 Cementitious panel with reinforced edges 44 1998
6,488,792 Method and apparatus for manufacturing cementitious panel with reinforced longitudinal edge 39 2000
 
SAINT-GOBAIN TECHNICAL FABRICS AMERICA (2)
7,846,278 Methods of making smooth reinforced cementitious boards 3 2003
7,300,892 Facing material with controlled porosity for construction boards 8 2005
 
TECHFAB, LLC (2)
6,054,205 Glass fiber facing sheet and method of making same 45 1997
6,391,131 Method of making glass fiber facing sheet 27 1999
 
CONSOLIDATED MINERALS, INC. (1)
6,800,174 System for making wallboard or backerboard sheets including aerated concrete 1 2002
 
DIVERSITECH CORPORATION (1)
7,334,385 Automated tucking process for covering a penetrable core material 0 2005
 
ENVIRO-PLY INTERNATIONAL, INC. (1)
6,316,087 Synthetic structural panel and method for manufacture 11 1998
 
INTELLECTUAL VENTURES FUND 83 LLC (1)
8,094,927 Stereoscopic display system with flexible rendering of disparity map according to the stereoscopic fusing capability of the observer 5 2004
 
JAMES HARDIE TECHNOLOGY LIMITED (1)
7,204,065 Cement render system 13 2001
 
MILLIKEN & COMPANY (1)
7,914,884 Fabric reinforced cement 0 2005
 
NEHEMIAH ELITE WALL SYSTEMS, INC., an Arizona Corporation (1)
6,176,920 Cementitious structural panel and method of its manufacture 53 1998
 
OWENS CORNING INTELLECTUAL CAPITAL, LLC (1)
6,579,413 Wet-formed mat applications for cement backerboards 13 2002
 
SAINT GOBAIN TECHNICAL FABRICS, LTD. (1)
7,049,251 Facing material with controlled porosity for construction boards 17 2003
 
SAINT-GOBAIN TECHNICAL FABRICS AMERICA, INC. (1)
6,368,024 Geotextile fabric 3 1998
 
Other [Check patent profile for assignment information] (5)
5,961,900 Method of manufacturing composite board 11 1994
6,976,345 Cementitious based structural lumber product and externally reinforced lightweight retaining wall system 8 2002
6,911,076 Cementitious based structural lumber product and externally reinforced lightweight retaining wall system 1 2003
RE41592 Method of producing gypsum/fiber board 0 2005
8,413,333 Method for making an asymmetrical concrete backerboard 1 2010