Fluid pressure actuator

Details Fluid pressure actuator Fluid pressure actuator

1978-03-30

1979-10-02

Geoghegan, Edgar W.

Motors: expansible chamber type

Rotary and reciprocating working members

91508, 60484, 60DIG10, F01B 1300

Patent

active

041694040

ABSTRACT:
A fluid pressure actuator having a first member, a second member adapted to rotate relative to the first member, and a third member adapted to move on the second member. One of the first member and the second member is formed thereon with two flanges disposed in spaced-apart relationship for closing opposite ends of a first pressure chamber defined between the first and second members. The flanges are each formed in the outer periphery thereof with a groove communicating with passages formed in the first and second members for supplying therethrough power for moving the third member. The actuator is small in volume, dispenses with piping located outside the actuator, and is easy to provide a fluid seal thereto.

REFERENCES:
patent: 2860751 (1958-11-01), Seigle
patent: 2988928 (1961-06-01), DeFonbrune et al.

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