Theft-proof system for motor vehicles

Details Theft-proof system for motor vehicles Theft-proof system for motor vehicles

1978-02-01

1980-09-30

Song, Robert R.

Motor vehicles

With means for promoting safety of vehicle, its occupant or...

By preventing unauthorized or unintended access or use

70237, 70337, 200 44, 307 10AT, 340 63, B60R 2500

Patent

active

042250080

ABSTRACT:
A theft-prevention system for a motor vehicle wherein at least one cylinder lock having a closing cylinder and a switching mechanism that is relatively translatable with respect to the closing cylinder for actuating and deactuating the cylinder lock is engageable by a first key which is able to actuate and deactuate only the cylinder lock, and a second key which is engageable with the cylinder lock for actuating and deactuating both the closing cylinder and at least one auxiliary system for deterring the theft of the vehicle. Actuation of the auxiliary system by the second key engages a locking mechanism preventing operation of the cylinder lock.

REFERENCES:
patent: 1093811 (1914-04-01), Voight
patent: 3555859 (1971-01-01), Berkowitz
patent: 3681544 (1972-08-01), Etheridge
patent: 3708032 (1973-01-01), Suzuki
patent: 3801755 (1974-04-01), Schlage
patent: 3912888 (1975-10-01), Takahashi
patent: 3936673 (1976-02-01), Kelly et al.

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