Automatic on-off fire protection sprinkler

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 5533576
SERIAL NO

08283784

Stats

ATTORNEY / AGENT: (SPONSORED)

Importance

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Abstract

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A fire protection sprinkler is coupled to a pressurized fire extinguishing fluid supply line and positioned generally above a predetermined area to be protected against damage by fire. The sprinkler has a body with an inlet and at least one outlet, a divider defining bias and outlet chambers within the body, and a pilot valve assembly, forming an integral part of the body, is in communication with the bias chamber. The divider has a first 'off' position substantially preventing fluid from exiting the outlet chamber and a second 'on' position allowing fluid flow from the outlet chamber to be distributed over the area being protected. The pilot valve assembly includes a thermally responsive sensing element, e.g. a bimetal snap disc, disposed in a relatively horizontal plane generally below a main portion of the body for exposure to heat from all regions of the predetermined area to be protected by the sprinkler device.

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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
Mears, James W Warwick, RI 20 409

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