Restraint assembly for door exit devices

Details Restraint assembly for door exit devices Restraint assembly for door exit devices

1982-07-06

1984-02-07

Moore, Richard E.

Closure fasteners

Bolts

Emergency operating means

E05C 1502

Patent

active

044299095

ABSTRACT:
A door exit device has a pivotal panic bar that is depressable from a raised position to unlatch a door. A lock assembly for the device comprises a pivotal member movable between an engaged position with the panic bar to hold it in its raised position and a disengaged position to permit pivotal depression of the panic bar and opening of the door. The member is mounted on the door and a locking feature is provided to hold the member in at least one of its engaged and disengaged positions. In two described embodiments of this invention, the member comprises an arm pivotally mounted for vertical movements to engage a cross-bar of the panic bar, in a third embodiment an arm pivots horizontally to engage a lever arm of the panic bar, and in a fourth embodiment the pivotal member comprises an extended end of a torsion spring adapted to engage and hold the panic bar in its raised position.

REFERENCES:
patent: 2758861 (1956-08-01), Molloy
patent: 3073142 (1963-01-01), Stebbins
patent: 3722938 (1973-03-01), Bauer et al.
patent: 4331352 (1982-05-01), Helding et al.

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