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Safety garage door retrofit system

  • US 20030102836A1
  • Filed: 10/18/2002
  • Published: 06/05/2003
  • Est. Priority Date: 08/31/2000
  • Status: Abandoned Application
First Claim
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1. A retrofit automatic garage door closer to be used with existing door operators having a motor and a transmission connecting the motor to the door to open and close the door, the automatic closer comprising:

  • a control unit connected to the motor and capable of commanding the motor to open and close the door;

    said control unit including a timing routine for timing a period in which the door is in an opened position, said unit capable of actuating the motor to close the door after said period has timed out; and

    at least one detector for detecting whether there is activity within the garage, said detector in communication with said control unit whereby the detection of activity alters said timing routine.

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