Selectively operable control system for vehicle brake valve

Details Selectively operable control system for vehicle brake valve Selectively operable control system for vehicle brake valve

1979-11-02

1982-02-02

Reger, Duane A.

Fluid-pressure and analogous brake systems

Multiple systems

Fluid pressure and electric

303 89, B60T 1368

Patent

active

043136419

ABSTRACT:
This invention relates to a selectively operable control system for use on an automotive vehicle to insure that the brakes of the vehicle will be locked after the engine has been turned off so as to prevent the vehicle from being stolen. The system includes a valve with a bidirectional motor and a control circuit for bidirectionally energizing the motor. The valve is established in an open position for normal braking only when an electronic key is inserted in a receptacle, and in a closed anti-theft position having check valve characteristics when the key is not inserted.

REFERENCES:
patent: 2585711 (1952-02-01), Whitney et al.
patent: 2670063 (1954-02-01), Reynolds
patent: 3515442 (1970-06-01), Whittemore
patent: 3528707 (1970-09-01), Casey
patent: 3735834 (1973-05-01), St. Onge
patent: 3770324 (1973-11-01), Stevenson et al.

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