Plastic and nonmetallic article shaping or treating: processes – Forming articles by uniting randomly associated particles – Liquid binder applied subsequent to particle assembly
Reexamination Certificate
2003-09-18
2008-11-04
Lee, Edmund H. (Department: 1791)
Plastic and nonmetallic article shaping or treating: processes
Forming articles by uniting randomly associated particles
Liquid binder applied subsequent to particle assembly
C264S308000, C264S333000, C264S172190, C156S042000
Reexamination Certificate
active
07445738
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.
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Chambers Joe W.
Dubey Ashish
Greengard Aaron
Li Alfred C.
Miller D. Paul
Greer Burns & Crain Ltd.
Janci, Esq. David F.
Lee Edmund H.
Sahu, Esq. Pradip
United States Gypsum Company
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