Double gated valve
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United States of America Patent
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-
Mar 10, 1992
Grant Date -
N/A
app pub date -
Mar 14, 1991
filing date -
Mar 14, 1991
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
There is disclosed a gate valve having a pair of side-by-side through conduit gates which are adapted to be reciprocated relatively to one another by a fail safe actuator of such construction as to move the upstream gate to closed position before the downstream gate and the downstream gate to open position before the upstream gate.
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International Classification(s)
Cited Art Landscape
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