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Mat monitor module

  • US 5,636,477 A
  • Filed: 04/04/1996
  • Issued: 06/10/1997
  • Est. Priority Date: 04/04/1996
  • Status: Expired due to Term
First Claim
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1. A monitor module for an automatic door system comprising an activate unit generating an activate input and a safety unit for generating a safety input and a control unit responsive to said activate and safety inputs for controlling a door operator comprising:

  • first input means for electrically communicating with said activate input;

    second input means for electrically communicating with said safety input;

    first output means for communicating with an activate terminal of said control unit;

    second output means for communicating with a safety terminal of said control unit;

    circuit means communicating with said first and second input means and said first and second output means for generating conditioned signals to said control unit and comprising indicator means for indicating whether the approach and safety units are properly operating; and

    mounting means for mounting said circuit means in fixed relation to said control unit.

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