Auto anti-theft device

Details Auto anti-theft device Auto anti-theft device

1990-06-27

1991-05-14

Wolfe, Robert L.

Locks

Operating mechanism

Using a powered device

72352, 72278, E05B 4700

Patent

active

050145304

ABSTRACT:
An automotive theft preventing circuit including a battery, ignition switch and starter connected in series. An anti-theft device connected in series therewith comprising a metallic adjusting screws contact plate and a spring loaded contact pins plate underneath it. A coded plastic card is underneath the last-mentioned plate having a plurality of upstanding pins and a plurality of holes in vertical and horizontal alignment with openings in the spring-loaded contact pins plate. Some of the metallic screws are surrounded by insulation to make the circuit more theft-proof.

REFERENCES:
patent: 3780548 (1973-12-01), Anastason
patent: 4149394 (1979-04-01), Sornes
patent: 4390758 (1983-06-01), Hendrickson
patent: 4674307 (1987-06-01), Humphries

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