Device for monitoring fluid pressure in mechanisms such as hydro

Details Device for monitoring fluid pressure in mechanisms such as hydro Device for monitoring fluid pressure in mechanisms such as hydro

1974-09-26

1976-01-13

Woodiel, Donald O.

Measuring and testing

Barometer

116 70, G01L 716

Patent

active

039317382

ABSTRACT:
Pressurized operating fluid, such as oil for hydrostatic fluid bearings, is directed into a chamber against a plunger urging the plunger into a first position. A monitoring pressure force slightly less than the force of the operating fluid when the operating fluid is at a minimum working pressure is exerted against the plunger tending to move the plunger from this first to a second position. Thus, when the pressure of the operating fluid drops below the minimum working pressure, the plunger is moved to its second position and such movement is sensed, thereby sensing the malfunction.

REFERENCES:
patent: 3474906 (1969-10-01), Tennis
patent: 3594745 (1971-07-01), Nickels

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