Device for discontinuing and automatically restoring the operati

Details Device for discontinuing and automatically restoring the operati Device for discontinuing and automatically restoring the operati

1975-01-20

1976-11-30

Schwadron, Martin P.

Expansible chamber devices

With releasable latch means between working member and power...

92 17, 92 30, 92 63, 92113, 92129, 92130A, 188170, F15B 1526

Patent

active

039942058

ABSTRACT:
An actuator for a spring brake used for parking and emergency has a spring operating on the brake push rod which will apply braking unless fluid pressure in the braking system applied to a piston overcomes spring pressure. To disable the spring brake the rod is retracted by a mechanism coupling the piston to the rod so that the brake is automatically restored into service when the piston is operated by the fluid pressure. The mechanism has a one-way clutch engaging a threaded push rod by means of a nut in non-self-locking engagement on the push rod threads.

REFERENCES:
patent: 2632426 (1953-03-01), Geesink
patent: 3051136 (1962-08-01), Muelhausen
patent: 3472124 (1969-10-01), Roselius
patent: 3576152 (1971-04-01), Chevreux
patent: 3704653 (1972-12-01), Higgins
patent: 3738229 (1973-06-01), Kraft
patent: 3782251 (1974-01-01), Le Marchand
patent: 3878924 (1975-04-01), Nadas

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