Sprinkler head with heat sensitive cover release and valve relea

Details Sprinkler head with heat sensitive cover release and valve relea Sprinkler head with heat sensitive cover release and valve relea

1978-12-01

1980-07-29

Spar, Robert J.

Fire extinguishers

Special applications

Condition responsive control

169 40, 169 42, A62C 3712

Patent

active

042146313

ABSTRACT:
A sprinkler head with a valve automatically detachable when the temperature is raised to such extent that there is a danger of the outbreak of a fire in a room. The sprinkler head has a water discharge valve seat in the lower center of a discoidal body, a plurality of supporting legs being formed on the outside of the valve seat. A valve in contact with the valve seat is supported by a heat sensitive sustaining unit having a plurality of levers, a fusible retainer disposed on said supporting legs holding the valve and the cover. A deflector made of a thin material having a multiplicity of sprinkling outlets is mounted on the lower part of the body. There is a cover on the outer side of the deflector which is released by the heat sensitive unit.

REFERENCES:
patent: 489342 (1893-01-01), Stratton
patent: 2591872 (1952-08-01), Rider
patent: 2639947 (1953-05-01), Tramm et al.
patent: 3525402 (1970-08-01), Hattori
patent: 3727695 (1973-04-01), Danton
patent: 4014388 (1977-03-01), Anderson

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