Vehicle anti-theft system with tampering indicator
First Claim
1. A vehicle anti-theft device comprising, electrical circuit means including alarm means having activated and deactivated modes, sensing means for sensing tampering with said vehicle, means for shifting said alarm means to said activated mode in response to said sensing means sensing tampering with said vehicle, means including timing means for shifting said alarm means from said activated mode to said deactivated mode after a predetermined period of time, tamper indicating mean separate from said alarm means for indicating tampering with said vehicle, and means for activating said tamper indicating means in response to said sensing means sensing tampering with said vehicle wherein said timing means includes means for activating said tamper indicating means after the expiration of said period of time.
3 Assignments
0 Petitions
Accused Products
Abstract
An electrical anti-theft device for a motor vehicle issues an audible alarm signal for a predetermined period of time in response to tampering with the vehicle which is sensed by the anti-theft device. At the end of the predetermined period of time, a strobe light is activated and operates continuously thereafter to indicate that the vehicle has been tampered with. At the same time, the electrical anti-theft device is reset so as to issue the alarm signal in response to further tampering with the vehicle. The electrical anti-theft device is incorporated in a mechanical anti-theft device mountable on a vehicle steering wheel to limit rotation thereof.
-
Citations
31 Claims
- 1. A vehicle anti-theft device comprising, electrical circuit means including alarm means having activated and deactivated modes, sensing means for sensing tampering with said vehicle, means for shifting said alarm means to said activated mode in response to said sensing means sensing tampering with said vehicle, means including timing means for shifting said alarm means from said activated mode to said deactivated mode after a predetermined period of time, tamper indicating mean separate from said alarm means for indicating tampering with said vehicle, and means for activating said tamper indicating means in response to said sensing means sensing tampering with said vehicle wherein said timing means includes means for activating said tamper indicating means after the expiration of said period of time.
- 19. A vehicle anti-theft system comprising an anti-theft device mountable in a vehicle to limit rotation of a vehicle steering wheel, an alarm device mounted on said anti-theft device and including electrical circuit means, said circuit means having armed and disarmed conditions, means for shifting said circuit means between said armed and disarmed conditions, alarm means in said circuit means, said alarm means in said armed condition having activated and deactivated modes, said circuit means including sensing means for sensing tampering with said vehicle, means for shifting said audible alarm to said activated mode in response to said sensing means sensing tampering with said vehicle, means including timing means for shifting said alarm means from said activated mode to said deactivated mode after a predetermined period of time, signal means separate from said alarm means for indicating tampering with said vehicle, and means for activating said signal means in response to said sensing means sensing tampering with said vehicle wherein said timing means includes means for activating said signal means after expiration of said period of time.
Specification