Method and apparatus for making reinforced cement board

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United States of America Patent

PATENT NO 4450022
SERIAL NO

06383674

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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A network of reinforcing fibers is pressed against the surface of an underlying carrier sheet by the weight of a concrete mix. A vertical gap between the sheet and the network is created so that the concrete mix may penetrate the voids of the network and spread out on the underlying sheet to embed the fibers.

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Patent Owner(s)

Patent OwnerAddress
UNITED STATES GYPSUM COMPANY THE A CORP OF DE101 SOUTH WACER DRIVE CHICAGO IL 60606

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Galer, Richard E Hanover Park, IL 7 350

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