Valves and valve actuation – With means for blocking or disabling actuator – Fluid pressure biased latch
Patent
1978-02-02
1980-06-03
Schwadron, Martin P.
Valves and valve actuation
With means for blocking or disabling actuator
Fluid pressure biased latch
251243, 251280, 251306, 74520, F16K 3500
Patent
active
042058201
ABSTRACT:
An installation control valve preferably for use in a fire fighting installation has a pivotal valve disc with an axis spindle to which is connected a lever. A lever retaining mechanism co-operates with the lever and is releasably held to resist lever and so valve disc movement. An actuating means is operable under predetermined condition to release the lever retaining mechanism to permit lever and valve disc movement to effect valve opening.
REFERENCES:
patent: 4044996 (1977-08-01), Kodaira
Thomas P. Goodman--Product Engineering Annual Handbook of Product Design of 1953, pp. F26, 27--Pub. date Nov. 1952.
Mather & Platt Limited
Schwadron Martin P.
Walton G. L.
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