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Anti-theft device for an automobile

  • US 4,749,873 A
  • Filed: 07/24/1986
  • Issued: 06/07/1988
  • Est. Priority Date: 07/25/1985
  • Status: Expired due to Fees
First Claim
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1. An anti-theft device for an automobile comprising:

  • intrusion detection means for detecting an abnormal intrusion into the automobile and for generating an intrusion signal;

    disconnection detection means for detecting disconnection of a main battery of the automobile from the electrical equipment supplied thereby and for generating a disconnection signal;

    disable means for disabling a control circuit of an engine of the automobile in response to the intrusion signal or the disconnection signal; and

    release means for halting the disable means from disabling the control circuit when input data provided to the release means are identical with preset data.

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