Parking brake device

Details Parking brake device Parking brake device

1978-08-10

1980-08-05

Reger, Duane A.

Brakes

Elements

Locks

303 89, B60T 1716

Patent

active

042157676

ABSTRACT:
A combined fluid pressure operable running and parking vehicle brake device including an application piston responsive to fluid pressure for exerting a brake-applying force on a vehicle wheel through a brake shoe for effecting either a service or emergency application, a locking piston responsive to fluid pressure independently of the application piston, for locking the brake device in an application disposition when the vehicle is parked, and compressible springs placed under compression by actuation of the application piston for storing a compressive force available for providing the brake-applying force in the event of failure of fluid pressure when the vehicle is parked.

REFERENCES:
patent: 3035666 (1962-05-01), Beeskow
patent: 3228729 (1966-01-01), Schubert
patent: 3410610 (1968-11-01), Cumming

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