Sprinkler head construction

Details Sprinkler head construction Sprinkler head construction

1979-07-06

1982-08-10

Spar, Robert J.

Fire extinguishers

Sprinkler heads

Collapsible strut

169 42, 1225043, A62C 3708

Patent

active

043433642

ABSTRACT:
A fire extinguisher sprinkler head construction has a fitting adapted to be coupled to a water line and having a passage therein through which water may flow and impinge upon a deflector. The water passage normally is sealed by a closure and a collapsible strut, the latter including a eutectic member which liquifies upon reaching a predetermined temperature. The eutectic member is sandwiched between a pair of thermally insulating members, also forming part of the strut, and is engaged by a thermally conductive member which functions as a heat collector.

REFERENCES:
patent: 792343 (1905-06-01), Newton
patent: 1345217 (1920-06-01), Newton
patent: 2004833 (1935-06-01), Rowley
patent: 2129012 (1938-09-01), Lewis
patent: 2534066 (1950-12-01), Rowley
patent: 3314482 (1967-04-01), Young
patent: 3336984 (1967-08-01), MacCartney
patent: 3341047 (1967-09-01), Nauta
patent: 3874456 (1975-04-01), Gloeckler
patent: 3923191 (1975-12-01), Johnson
patent: 4214631 (1980-07-01), Hattori

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