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Remote control door operating device

  • US 5,930,954 A
  • Filed: 06/02/1997
  • Issued: 08/03/1999
  • Est. Priority Date: 05/16/1994
  • Status: Expired due to Term
First Claim
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1. A door operating device for opening and closing a door in an opening in a wall, said device comprising in combination:

  • a first arm having a first and a second end, said first end of said first arm pivotally attachable to said wall for movement about a first axis,a second arm having a first and a second end, said first end of said second arm pivotally attachable to said door for movement about a second axis,said second end of said first arm pivotally attached to said second end of said second arm,electric motor means for drivingly rotating one of said arms in a first direction about one of said first and said second axis,clutch means for connecting and disconnecting said motor means from engagement with said one of said arms,start means for receiving an instruction to start said electric motor means,door open sensor means for detecting when said door is opened,door closed sensor means for detecting when said door is closed,said second end of one of said first arm and said second arm longitudinally slidable with respect to the second end of the other of said first arm and said second arm, andcontrol means connected to said motor means and said clutch means and responsive to said door open sensor means, said door closed sensor means and said start means, for directing electric power to said motor means upon actuation of said start means and for terminating electric power to said motor means upon receipt of a signal from one of said door open sensor means, and said door closed sensor means.

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