Vehicle anti-theft device and system
First Claim
1. An anti-theft system for a motor vehicle comprising an anti-theft device mountable in a vehicle to limit rotation of a vehicle steering wheel and including first and second attachment means displaceable relative to one another between mounting and storage positions, control signal transmitting means on said device having a first condition for transmitting a control signal when said attachment means are in said storage position and a second condition inhibiting transmission of a control signal when said attachment means are in said mounting position, a vehicle control unit mounted on said vehicle and having a first condition enabling operation of said vehicle and a second condition inhibiting operation of said vehicle, said control unit being in said second condition thereof when said attachment means are in said mounting position, and means including control signal receiving means remote from said transmitting means for shifting said control unit into said first condition thereof in response to a control signal transmitted by said transmitting means when said attachment means are displaced from said mounting position to said storage position.
6 Assignments
0 Petitions
Accused Products
Abstract
A vehicle anti-theft system comprises a mechanical anti-theft device adapted to be attached to a vehicle steering wheel to limit rotation thereof, and an electrical anti-theft device remotely controlled by a transmitter in the mechanical device and operable to inhibit starting of the vehicle engine when the mechanical device is in its mounted position. The mechanical device includes a key operated lock mechanism for locking the device to the steering wheel and a supplemental lock mechanism for maintaining the locked condition of the device in response to tampering with either the key operated or the supplemental lock mechanism.
46 Citations
52 Claims
- 1. An anti-theft system for a motor vehicle comprising an anti-theft device mountable in a vehicle to limit rotation of a vehicle steering wheel and including first and second attachment means displaceable relative to one another between mounting and storage positions, control signal transmitting means on said device having a first condition for transmitting a control signal when said attachment means are in said storage position and a second condition inhibiting transmission of a control signal when said attachment means are in said mounting position, a vehicle control unit mounted on said vehicle and having a first condition enabling operation of said vehicle and a second condition inhibiting operation of said vehicle, said control unit being in said second condition thereof when said attachment means are in said mounting position, and means including control signal receiving means remote from said transmitting means for shifting said control unit into said first condition thereof in response to a control signal transmitted by said transmitting means when said attachment means are displaced from said mounting position to said storage position.
- 45. An anti-theft system for a motor vehicle comprising an anti-theft device mountable in a vehicle to limit rotation of a vehicle steering wheel and including first and second attachment means displaceable relative to one another between mounting and storage positions, control signal transmitting means on said device having a first condition for transmitting a control signal when said attachment means are in one of said mounting and storage positions and a second condition inhibiting transmission of a control signal when said attachment means are in the other of said mounting and storage positions, a vehicle control unit mounted on said vehicle and having a first condition enabling operation of said vehicle and a second condition inhibiting operation of said vehicle, said control unit being in said second condition thereof when said attachment means are in said mounting position, and means including control signal receiving means remote from said transmitting means for shifting said control unit into said first condition thereof in response to displacement of said attachment means from said mounting position to said storage position.
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52. An anti-theft system for a motor vehicle comprising a mechanical anti-theft device mountable in a vehicle to limit rotation of a vehicle steering wheel, control signal transmitting means on said device having a first condition for transmitting a control signal and a second condition inhibiting transmission of a control signal, said device including means for shifting said transmitting means between said first and second conditions, a vehicle control unit mounted on said vehicle and having a first condition enabling operation of said vehicle and a second condition inhibiting operation of said vehicle, and means including control signal receiving means remote from said transmitting means for shifting said control unit from one of said first and second conditions thereof to the other in response to a control signal transmitted by said transmitting means, said motor vehicle having electrical starting circuit means and said vehicle control unit including means for inhibiting said starting circuit means when said control unit is in said first condition thereof, said means for shifting said control unit into said first condition including means for validating said control signal transmitted by said transmitting means, said motor vehicle including key operated ignition switch means having on and off modes, and said means for shifting said control unit including means for detecting said switch means in said on mode and means operable only in response to a validated control signal and said ignition switch means in said on mode to shift said control unit into said first condition.
Specification