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Self-locking oven door hinge

  • US 3,889,654 A
  • Filed: 12/26/1973
  • Issued: 06/17/1975
  • Est. Priority Date: 12/26/1973
  • Status: Expired due to Term
First Claim
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1. A range comprising a cabinet assembly having an oven chamber, and a door assembly, including a lower hinge, adapted to be removably mounted on the cabinet assembly, the door assembly being in a closed position when vertically disposed and being pivotal away from the oven chamber about a horizontal hinge axis adjacent its lower edge, releasable locking means adjacent the lower door hinge for retaining the lower door hinge on the oven chamber, said releasable locking means including interengaging elements associated with said door assembly and said cabinet assembly, said releasable locking means allowing separation of said door assembly from said cabinet assembly when the lower edge of the door assembly is raised a predetermined distance from a normal locked position, door latching means operative to prevent the door from being opened when the internal temperature of the oven chamber is above normal baking temperatures, and means preventing the lower door edge from being lifted said predetermined distance when said door latching means is operative on said door assembly and allowing said lower door edge to be lifted said predetermined distance when said door latching means is not operative wherein said door lift prevention means includes a first surface fixed relative to the cabinet assembly and a second surface fixed relative to the door assembly engageable with said first surface when said door assembly is vertically disposed, said first and second surfaces being arranged relative to one another in a manner which, when in engagement, prevents said door from being lifted through said predetermined distance.

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