Fire extinguishers – Sprinkler heads – Collapsible strut
Patent
1989-05-25
1990-12-11
Basinger, Sherman
Fire extinguishers
Sprinkler heads
Collapsible strut
169 37, 169 38, 169 40, A62C 3708
Patent
active
049763202
ABSTRACT:
A concealed sprinkler with drop down deflector assembly includes a pair of frame arms which resemble a tuning-fork, there being a gap between the free end portions of the arms. As a result, the arms are not subject to assembly loads or system pressure loads. The drop down deflector assembly is mounted on the end portions of the arms. A preferred valve assembly includes a valve and a compound lever arrangement for holding a rigid thermal responsive element, such as a frangible glass bulb, and for adjusting compressive pre-load on the valve without loading the frame arms.
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Basinger Sherman
Central Sprinkler Corporation
Ellis Christopher P.
LandOfFree
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