Expansible chamber devices – With releasable stop or latch means to prevent movement of... – Means includes element interfitting between working member...
Patent
1986-06-27
1987-11-03
Hershkovitz, Abraham
Expansible chamber devices
With releasable stop or latch means to prevent movement of...
Means includes element interfitting between working member...
92 27, 188 67, F15B 1526
Patent
active
047036834
ABSTRACT:
A fluid actuator includes an internal lock assembly for locking an actuator piston to a cylinder of the actuator. A circumferential slot is located on the inner surface of the cylindrical wall for receiving locking latches which are radially extendable and retractable on the piston, and ball bearings are located between an inner aspect of each latch and a first abutment member on the piston. A second abutment member has a thickness less than about half the diameter of the ball bearings and is adapted to become wedged between the ball bearings and the first abutment means to force the latches radially outwardly into the slot for locking the piston relative to the cylinder and thereafter to abut only the latches to maintain locking.
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Geib Richard G.
Grumman Aerospace Corporation
Hershkovitz Abraham
Hoffman Bernard S.
Tick Daniel Jay
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