Anti-theft lock device

Details Anti-theft lock device Anti-theft lock device

1982-09-23

1985-05-28

Butler, Douglas C.

Fluid-pressure and analogous brake systems

Locks

188265, 188353, B60T 1716, B60R 2508

Patent

active

045196532

ABSTRACT:
An anti-theft device, having application for preventing unauthorized operation of a vehicle, includes a moveable lock member biased toward the actuating member for the vehicle's parking brakes. An electric solenoid is energized along with the ignition system to retract the lock member and allow the parking brakes to be released. The preferred device also includes a timer apparatus that requires the parking brakes to be released according to a predetermined timing sequence in order to substantially prevent theft of the vehicle.

REFERENCES:
patent: 2751054 (1956-06-01), Del Re, Sr.
patent: 3874747 (1975-04-01), Case et al.
patent: 3998495 (1976-12-01), Maxwell et al.

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