Fire extinguishers – Special applications – Condition responsive control
Patent
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
Oujevolk George B.
Silverberg Fred A.
Spar Robert J.
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