Valve locking means for a two stage servomotor

Details Valve locking means for a two stage servomotor Valve locking means for a two stage servomotor

1975-05-19

1976-11-09

Schwadron, Martin P.

Power plants

Pressure fluid source and motor

Pulsator

60572, 60592, 60584, 91434, F15B 700

Patent

active

039902412

ABSTRACT:
A pressure differentially controlled valve for use in a two stage servomotor to prevent reversion from the second stage to the first stage. A first valve initially moves to transfer the output of a servomotor from a first piston to a second piston. A pressure differential responsive second valve prevents the output of the second piston chamber from being communicated to the first piston chamber by moving thereafter with the first valve until an input force is terminated.

REFERENCES:
patent: 3048018 (1972-08-01), Nicolin
patent: 3910046 (1975-10-01), Gardner
patent: 3911681 (1975-10-01), Sisco
patent: 3914941 (1975-10-01), Gardner
patent: 3937021 (1976-02-01), Sisco

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