Anti-theft apparatus for vehicles

Details Anti-theft apparatus for vehicles Anti-theft apparatus for vehicles

1979-06-14

1981-11-10

Hix, L. T.

Electrical transmission or interconnection systems

Vehicle mounted systems

Automobile

340 63, 303 89, 180287, B60R 2508

Patent

active

043000576

ABSTRACT:
An anti-theft apparatus for vehicles includes a permanent magnetic attraction and retention element joined to a valve incorporated in the hydraulic return circuit of the braking system of an automobile. The magnetic attraction and retention element is controlled by a dual effect coil activated only by an electronic circuit set off by specific voltages acting as an electronic code. A valve, a seal, the magnetic retention element, the dual effect coil, and the electronic circuit are housed in a tamperproof container.

REFERENCES:
patent: 3559755 (1971-02-01), Pond
patent: 3735834 (1973-04-01), St. Onge
patent: 3796889 (1974-03-01), Fradkin et al.
patent: 3800279 (1974-03-01), Thompson

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