Closure fasteners – Bolts – Swinging
Patent
1996-10-04
1998-06-09
Meyers, Steven N.
Closure fasteners
Bolts
Swinging
292 92, 292332, E05C 312
Patent
active
057623856
ABSTRACT:
A push pad releasable exit device with continuous deadlocking for mounting near a door edge for engaging a lock strike includes a housing having first and second sidewalls upon which are mounted two end walls and an internal wall parallel to the end walls, each of the end walls and the internal wall having a hole, the holes being aligned on a common axis, the first sidewall having a wedge stop projecting inwardly therefrom toward the axis of the holes in the end walls and the internal wall; a tapered latch bolt mounted on a cylindrical shaft, the shaft extending through the holes and having a provision for urging the latch bolt toward the lock strike; a wedge plate having a hole providing clearance around the shaft and aligned with the holes in the end walls, having a tab pivotally resting in a slot of the second wall, and having a corner distal from the tab resting against the wedge stop when the door is in an open position; a provision for sensing when the door is in a closed position and for flipping the wedge plate away from the wedge stop to grip the shaft and to thereby deadlock the latch bolt; and further provision for releasing the shaft in response to minimal deflection of the push pad to permit the latch bolt to ride over the lock strike driven only by the normal force required to open the door.
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Dye William P.
Mader Gerald E.
Prucinsky Matthew S.
Lecher Donald J.
Meyers Steven N.
Minns Michael H.
Palermo Robert F.
Von Duprin, Inc.
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