Fire strip construction

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United States of America Patent

PATENT NO 4916877
SERIAL NO

07375567

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ATTORNEY / AGENT: (SPONSORED)

Importance

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Abstract

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A fire strip for a suspended grid ceiling has an inner spring steel web having a slightly arcuate cross section, and an outer web of soft steel wrapped around the inner web. A finished strip is formed by bending the strip normal to the strip body at both ends. When the ends are bent, a spring-like, yieldable, upwardly curved arch is formed which fits snugly against a panel when in place in a ceiling.

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Patent Owner(s)

  • NATIONAL ROLLING MILLS, INC.;WORTHINGTON ARMSTRONG VENTURE

International Classification(s)

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Platt, William J Collingdale, PA 41 835

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