Closure fasteners – Bolts – Emergency operating means
Patent
1994-04-12
1996-02-13
Boucher, Darnell M.
Closure fasteners
Bolts
Emergency operating means
292DIG71, 292DIG65, 292DIG60, 29234118, 292196, E05B 6510
Patent
active
054906970
ABSTRACT:
A locking device, suitable for walk-in freezer doors, automatically locks when the door is closed, allows the door to be pulled open from the outside only when a proper key is inserted and rotated 90.degree., and always allows the door to be opened from the inside by pushing on a manual actuator. The locking device includes a strike mounted on the door frame, an outside plate assembly including a rigid handle and lock cylinder, and an inside plate assembly including a bracket supporting a spring loaded bolt, an enabling mechanism in the form of a collapsible linkage coupled to the bolt, a manual actuator, and a cover.
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Boucher Darnell M.
International Security Products, Inc.
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