Patent ID: 7146765
Filing Date: 2006-12-12
Classification: E05B,E05F,E05Y

Abstract:
1. An apparatus comprising an overhead building closure door, an emergency release device, and; an automated door closure assembly, said door closure assembly including a drive motor, and engagement means for engaging with said drive motor for moving a door from a first open position to a second closed position and vice versa via a rotating output of the drive motor, said emergency release device comprising: a decoupling means for decoupling said engagement means from said drive motor in event of an emergency, said decoupling means comprising a safety means for preventing at least one member of the group consisting of unintentional actuation and unauthorized actuation of the decoupling means of said emergency release device during normal operation of the automated door assembly, said safety means comprising one of: a wire seal requiring manual intervention to neutralize said safety means prior to permitting actuating of said decoupling means, a breakable cover, that covers access to said decoupling means, requiring manual intervention to neutralize said safety means prior to permitting actuating of said decoupling means, and means requiring manual intervention by one of a specialized tool and a specialized key to neutralize said safety means prior to permitting actuating of said decoupling means.