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Self-contained anti-theft device for motor vehicles

  • US 5,449,957 A
  • Filed: 07/26/1993
  • Issued: 09/12/1995
  • Est. Priority Date: 07/26/1993
  • Status: Expired due to Term
First Claim
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1. An anti-theft device for use on a motor vehicle having a starting circuit including an operating switch and a starting motor adapted to draw a substantial amount of current from a battery of said vehicle when said operating switch is actuated, said anti-theft device comprising a power switching device having a first condition connecting said battery to said starting circuit and a second condition disconnecting said starting circuit from said battery, operating means for selectively shifting said power switching device between said first condition and said second condition, and means for producing a noise simulating a weak battery when said power switching device is in said second condition and when said operating switch is actuated.

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