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Garage door opener with remote safety sensors

  • US 5,584,145 A
  • Filed: 04/13/1995
  • Issued: 12/17/1996
  • Est. Priority Date: 09/15/1993
  • Status: Expired due to Fees
First Claim
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1. A method of operating a garage door opening system including a control circuit and a motor, said garage door opening system reducing depletion of an external energy source by including means for detecting obstructions in a path of a garage door that are selectively switchable from a first state, wherein said detection means does not detect obstructions and consumes minimal energy and a second state, wherein said detection means detects obstructions, comprising steps of:

  • activating said control circuit to provide an impetus to start said motor moving said garage door;

    sensing said garage door motion and providing a signal to switch said detection means from said first state to said second state; and

    transmitting a control signal from said detecting means to said control circuit at intervals when said detection means is in said second state and no obstructions are detected.

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