Expansible chamber devices – With releasable stop or latch means to prevent movement of... – Means includes element interfitting between working member...
Patent
1989-11-27
1990-08-28
Ostrager, Allen M.
Expansible chamber devices
With releasable stop or latch means to prevent movement of...
Means includes element interfitting between working member...
91 45, 92 24, F15B 1526
Patent
active
049515527
ABSTRACT:
A hydraulic actuator including an actuator cylinder and a ram slidable therein from a retracted position to an extended position. This ram has an axially extending chamber positioned in an end section and a number of ball passageways extend between this chamber and the outer surface of the ram. A locking ball is positioned in each passageway. A ring is slidably mounted on the ram and is positioned at its forwardmost point of travel to hold the balls so that they do not project from the passageways. A spring biases the ring towards its forwardmost position. A ball moving spool is slidably mounted in the chamber and has an annular ball receiving recess. A stop is located in an end section of the cylinder for preventing further forward movement of the ring and this stop causes the ring to slide rearwardly relative to the ram upon further extension of the latter.
REFERENCES:
patent: 2713328 (1955-07-01), Driskel et al.
patent: 3115330 (1963-12-01), Dollison
patent: 4635536 (1987-01-01), Liu et al.
patent: 4742758 (1988-05-01), Della Rocca
LandOfFree
Locking cylinder does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Locking cylinder, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Locking cylinder will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1581938