Anti-jam mechanism for actuation pistons

Details Anti-jam mechanism for actuation pistons Anti-jam mechanism for actuation pistons

1977-11-18

1979-09-11

Geoghegan, Edgar W.

Expansible chamber devices

Relatively movable working members

137596, 60484, 91170R, 91509, F01B 102

Patent

active

041671350

ABSTRACT:
A fluid control unit comprising a drive piston having first and second faces and a drive rod. The drive piston has first and second fluid responsive faces exposable to fluid under pressure. The fluid under pressure acting on the first face urges the drive piston in a first direction and the fluid under pressure acting on the second face urges the drive piston in a second direction. First and second overridable detents drivingly couple the drive piston and the drive rod for movement in first and second directions, respectively. The coupling force provided by the first detent varies with the pressure of the fluid to which the first face of the drive piston is exposed, and the coupling force provided by the second detent varies with the pressure of the fluid to which the second face of the drive piston is exposed.

REFERENCES:
patent: 2613650 (1952-10-01), Mott
patent: 3253613 (1966-05-01), Richolt
patent: 3439707 (1969-04-01), York et al.

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