Control valves
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United States of America Patent
Stats
-
Jun 3, 1980
Grant Date -
N/A
app pub date -
Feb 2, 1978
filing date -
Jun 10, 1975
priority date (Note) -
Expired
status (Latency Note)
Importance
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.
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