Hydropneumatic monitoring device
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United States of America Patent
Stats
-
Mar 11, 1986
Grant Date -
N/A
app pub date -
Aug 2, 1984
filing date -
Aug 2, 1984
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A hydropneumatic monitoring device in which a hydraulic fluid passageway is controlled by a piston and plunger spring biased in one direction and shiftable by air pressure in opposition to the bias for aligning a passageway-connecting bypass in the plunger with the passageway which is intersected by the plunger. Air pressure metered through the piston passes to an air passage. Air pressure failure or blockage in the air passage cause deviation of the piston and plunger from a state of open passageway equilibrium, for blocking the passageway.
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