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Programmable timer power switch unit with emergency override reset

  • US 5,272,386 A
  • Filed: 02/14/1992
  • Issued: 12/21/1993
  • Est. Priority Date: 02/14/1992
  • Status: Expired due to Term
First Claim
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1. A programmable timer power switch unit having an emergency override reset, said unit comprising:

  • power switch means receiving power from a motor battery and switching the power to equipment powered by the motor battery;

    detector means connected to the motor battery for detecting potential charges of the battery and comparing the detected potential charges to predetermined reference voltages;

    vibration/sound/pressure detector connected to said detector means for monitoring the comparison of the voltages with vibrations of the motor battery, and providing a mode signal representing battery on, idle or moving;

    auto/manual override switch connected to said detector means for receiving a comparison signal and for sending a result signal based on the comparison;

    timer-control logic receiving the signals from said vibration-pressure detector and said auto/manual override switch for controlling said power switch means based on the received signals; and

    programmable delay means connected to said timer-control logic and said auto/manual override switch for enabling said timer-control logic for a pre-determined selected time.

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