Fluid operated apparatus

Details Fluid operated apparatus Fluid operated apparatus

1977-08-08

1980-06-03

Hershkovitz, Abraham

Expansible chamber devices

Relatively movable working members

Rigid stem on first working member portion extends through...

91178, 92151, F01B 710

Patent

active

042055946

ABSTRACT:
A three position fluid actuated device including a cylinder, end walls, a central wall dividing the cylinder into two chambers and a stop midway in one chamber. A piston is slidable in the other chamber and is attached to one end of an output shaft which extends beyond the opposite end wall. Two floating pistons are slidable on the shaft in the one chamber on opposite sides of the stop. A snap ring on the shaft displaces the floating pistons toward the central and end walls. Four ports in the end and central walls permit moving the shaft to three positive positions.

REFERENCES:
patent: 2506374 (1950-05-01), McMahon
patent: 2531907 (1950-11-01), Daubenmeyer
patent: 3312146 (1967-04-01), Quere
patent: 3713364 (1973-01-01), Francia
patent: 4002105 (1977-01-01), Bell

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