Parking brake lock-in key switch system with automatic...

Details Parking brake lock-in key switch system with automatic... Parking brake lock-in key switch system with automatic...

2007-05-15

2007-05-15

Siconolfi, Robert A. (Department: 3683)

Fluid-pressure and analogous brake systems

Locks

C303S007000

Reexamination Certificate

active

11109116

ABSTRACT:
A parking brake system for motor vehicle air brakes provides automatic engagement of the parking brakes when a gearshift lever is moved to park, but requires manual disengagement of the parking brakes. The effect is achieved in part by controlling the discharge conditions of two piloted latch valves connected to feed air to a cab mounted push pull double check valve.

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