Locking valve and flow control valve assembly
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United States of America Patent
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-
Jan 21, 1992
Issued Date -
N/A
app pub date -
Sep 25, 1990
filing date -
Aug 30, 1989
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A locking valve for selectively locking fluid pressure in a fluid cylinder in the event of failure of the source of fluid pressure to the cylinder and including an integral fluid flow control valve, the locking valve also including a fluid pressure seal between the fluid supply port and the pilot port of the locking valve to prevent back pressure on the pilot pressure operated valve components.
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