Reaction hold-off means for a two stage servomotor

Details Reaction hold-off means for a two stage servomotor Reaction hold-off means for a two stage servomotor

1974-03-29

1976-02-10

Cohen, Irwin C.

Motors: expansible chamber type

Fluid supply through diverse paths to single expansible chamber

60404, 251 77, F01B 2502, F15B 900

Patent

active

039371263

ABSTRACT:
A hold-off resilient member for resisting movement of a plunger caused by an input force. The plunger initially moves a first control valve to permit air to enter a servomotor and develop an operational pressure differential in response to the input force. Further movement of the plunger will axially compress the resilient member as a function of input force to output force causing its peripheral surface to radially expand and actuate a second control valve. The actuation of the second control valve will permit air above atmospheric pressure to develop the operational pressure differential in response to the input force.

REFERENCES:
patent: 3174285 (1965-03-01), Stelzer
patent: 3434388 (1969-03-01), Julow et al.
patent: 3661054 (1972-05-01), Brown
patent: 3719044 (1973-03-01), Bach
patent: 3780620 (1973-12-01), Gardner

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