Hydraulic brake actuating and locking device

Details Hydraulic brake actuating and locking device Hydraulic brake actuating and locking device

1974-11-21

1976-03-30

Schwadron, Martin P.

Expansible chamber devices

With releasable stop or latch means to prevent movement of...

Means includes element interfitting between working member...

92 27, 92113, 303 89, F15B 1526

Patent

active

039466426

ABSTRACT:
A hydraulic brake actuating and locking device is provided for applying brakes of a vehicle comprising an elongated brake cylinder having a tubular push rod axially operable therein for actuating the brakes and a hydraulically controlled locking device disposed within the tubular push rod and operable when rendered effective for acting on the inner periphery of the push rod to restrain the push rod against axial movement relative to the brake cylinder. The locking device is selectively actuated in accordance with the movement of a locking wedge within the push rod by a hydraulically operated locking piston.

REFERENCES:
patent: 2259815 (1941-10-01), Greve
patent: 2378103 (1945-06-01), Rappl
patent: 2815736 (1957-12-01), Wright
patent: 2923278 (1960-02-01), Katzberg
patent: 3160078 (1964-12-01), Hiemstra
patent: 3182565 (1965-05-01), Millard
patent: 3203513 (1965-08-01), Allen
patent: 3350987 (1967-11-01), Johnson
patent: 3353455 (1967-11-01), Berry
patent: 3472124 (1969-10-01), Roselius
patent: 3498182 (1970-03-01), Sheffer
patent: 3605568 (1971-09-01), Nepp

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