A valve arrangement
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United States of America Patent
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-
Jan 25, 1994
Grant Date -
N/A
app pub date -
Aug 9, 1991
filing date -
Aug 9, 1990
priority date (Note) -
Expired
status (Latency Note)
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Abstract
An hydraulically assisted inlet valve is disclosed having a by-pass passage (32) which is permanently open. Preferably the valve has a valve body (13) reciprocally mounted in the inlet (4) and carried by a diaphragm (23). The by-pass passage preferably extends through the valve body (13) to apply inlet pressure to one side of the diaphragm.
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