Burglarproof device for vehicle

Details Burglarproof device for vehicle Burglarproof device for vehicle

1990-09-12

1994-02-22

Yusko, Donald J.

Communications: electrical

Continuously variable indicating

With meter reading

307 102, 70278, 34082534, H04Q 100

Patent

active

052891771

ABSTRACT:
This invention relates to a burglarproof key cylinder lock which comprises an outer tubular member, and an inner tubular member rotatably provided within the outer tubular member. A properly coded magnet key is inserted into the inner tubular member. The outer tubular member is provided with at least one switch member therein which is turned ON when a properly coded magnet key is inserted into the inner tubular member. An input signal discrimination circuit is provided for cutting off output signals to supply elements essential for the operation of an engine for a vehicle in case a key other than the properly coded key is inserted.

REFERENCES:
patent: 2689279 (1954-09-01), Noregaard
patent: 3842629 (1974-09-01), Pazer
patent: 4050063 (1977-09-01), Schull
patent: 4229959 (1980-10-01), Easley
patent: 4274080 (1981-06-01), Branken
patent: 4296402 (1981-10-01), Szczepanski
patent: 4392134 (1983-07-01), Lutz
patent: 4399673 (1983-08-01), Gotanda

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