Lubrication – Lubricators – Force feed
Patent
1984-08-02
1986-03-11
Look, Edward K.
Lubrication
Lubricators
Force feed
239412, F16N 734
Patent
active
045749205
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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Callahan James J.
Hammell James M.
Look Edward K.
Lubriquip - Houdaille, Inc.
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