Locks – Operating mechanism – Using a powered device
Patent
1989-11-03
1991-03-19
Wolfe, Robert L.
Locks
Operating mechanism
Using a powered device
70223, 70472, E05B 4700
Patent
active
050000187
ABSTRACT:
Hardware, in particular for doors or the like, includes a push pin which can be coupled by key-card insertion with an actuating knob. In order to obtain increased possibilities of use, without reduction of locking security, a coupling is actuatable by means of an electromagnetic device.
REFERENCES:
patent: 4073527 (1978-02-01), Schlage
patent: 4676083 (1987-06-01), Sedley
patent: 4854143 (1989-08-01), Corder
Farber Martin A.
Schulte-Schlagbaum Aktiengesellschaft
Wolfe Robert L.
LandOfFree
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