Delayed closing fire sprinkler heads

Details Delayed closing fire sprinkler heads Delayed closing fire sprinkler heads

1975-10-14

1976-11-16

Love, John J.

Fire extinguishers

Automatic valves

137 79, 236 99K, 251 74, A62C 3706

Patent

active

039918297

ABSTRACT:
A fire sprinkler valve with a valve member coupled to a primary temperature responsive control mechanism that is activated to open the valve in response to ambient temperatures above a given temperature level and that urges the valve toward closed position in response to temperatures below that level. An auxiliary control causes automatic reclosure of the valve only in response to a decrease in an ambient temperature to below the given level.

REFERENCES:
patent: 1143762 (1915-06-01), Hooks
patent: 1884794 (1932-10-01), McKee
patent: 2230179 (1941-01-01), Cid

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