Concealed sprinkler head assembly

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 5072792
SERIAL NO

07337469

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ATTORNEY / AGENT: (SPONSORED)

Importance

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Abstract

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An improved concealed sprinkler head assembly that incorporates a standard pendant-type sprinkler head includes a frame having an outlet that is connected to a water line and a valve cap that encloses the outlet and is held in the closed position by a releasable lever mechanism which includes a fusible metal. The assembly also includes a pre-assembled cover plate unit that consists of a disc having a central opening that is slid upwardly over the frame of the sprinkler head. The cover plate unit also includes a tubular sleeve having a pair of opposed notches which receive projections on the periphery of the disc. A decorative cover plate is secured through a fusible metal, such as solder, to the lower edge of the sleeve, and a coil spring, in a compressed condition, interconnects the upper end of the sleeve with the disc.

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First Claim

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Patent Owner(s)

Patent OwnerAddress
GRINNELL CORPORATION1467 ELMWOOD AVENUE CRANSTON RI 02910

International Classification(s)

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Galaszewski, William Brookfield, WI 3 123
Simons, John R Greendale, WI 7 172

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