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Panel garage door opening and closing

  • US 5,036,899 A
  • Filed: 08/02/1990
  • Issued: 08/06/1991
  • Est. Priority Date: 08/02/1990
  • Status: Expired due to Term
First Claim
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1. A hinged multiple panel overhead door, horizontal, corner and vertical segments of opposed roller guide tracks, and a door opening-closing mechanism:

  • said opening-closing mechanism being installed along and across the uppermost or top panel of said door and having an integrally associated electric motor and drive component located mediate of said opposed guide tracks for a direct reaction with said horizontal and corner segments of said guide tracks through a linear drive shaft extending between said guide tracks;

    each said guide track having an outer face with an elongate gear rack;

    each said gear rack being in continuous meshing engagement with a driven gear at an outboard end of said linear drive shaft; and

    ,said opening-closing mechanism further having an idler roller bearing and one of said driven gears confined and guided within an outer channel on each said guide track during operation thereof.

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