Locks – Operating mechanism – Using a powered device
Patent
1990-01-22
1991-07-02
Wolfe, Robert L.
Locks
Operating mechanism
Using a powered device
70279, 70280, 70224, 70107, E05B 4700
Patent
active
050276298
ABSTRACT:
An electronic lock includes two covers respectively formed on an outside and inside of a door, a tumbler slidably moving in a tumbler hole formed in a central transmission shaft secured to an outside door knob and moving in a tumbler socket formed in a sleeve engageable with the central shaft and secured to an inside knob, in which the tumbler is operated, by the action of a magnet manually swung or by an electromagnetic coil which is powered by a sensor when sensing a correct coded number card inserted in the sensor, to couple the central transmission shaft with the sleeve coupled to a dead latch so that upon a rotation of the outside knob to rotate the central shaft, the sleeve will be rotated to retract the dead latch for opening the door.
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Dino Suzanne L.
Wolfe Robert L.
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