Joe W Chambers

US Patent:

7445738, Nov 4, 2008

Filed:

Sep 18, 2003

Appl. No.:

10/666294

Inventors:

Ashish Dubey - Grayslake IL, US
Joe W. Chambers - Lake Geneva WI, US
Aaron Greengard - McHenry IL, US
Alfred C. Li - Naperville IL, US
D. Paul Miller - Lindenhurst IL, US
Michael J. Porter - Hanover Park IL, US

Assignee:

United States Gypsum Company - Chicago IL

International Classification:

B29C 70/06
B29C 70/30

US Classification:

264128, 264308, 264333, 26417219, 156 42

Abstract:

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.

US Patent:

7789645, Sep 7, 2010

Filed:

Jun 5, 2008

Appl. No.:

12/133657

Inventors:

Ashish Dubey - Grayslake IL, US
Joe W. Chambers - Lake Geneva WI, US
Aaron Greengard - McHenry IL, US
Alfred C. Li - Naperville IL, US
D. Paul Miller - Lindenhurst IL, US
Michael J. Porter - Hanover Park IL, US

Assignee:

United States Gypsum Company - Chicago IL

International Classification:

B29C 39/20
B29C 70/06

US Classification:

425115, 425130, 425209, 425308, 425371, 425447

Abstract:

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.