Locks – Operating mechanism – Key
Patent
1975-07-25
1976-07-27
Wolfe, Robert L.
Locks
Operating mechanism
Key
70363, E05B 1700, E05B 2708
Patent
active
039712427
ABSTRACT:
A key ejector lock adapted for use in the door of a cabinet or other enclosure and which will eject the lock key in any rotational position thereof comprises a tubular barrel, a front end plug rotatable in the barrel and having a keyway extending therethrough, a rear end plug rotatable in the barrel and adapted for connection to a locking member, rotatable drive means interposed between the plugs for driving the rear end plug, means providing a sliding drive connection between the front end plug and the drive means, one member of the front end plug and the drive means being mounted for axial reciprocal movement in the barrel, means resiliently urging the one member forwardly in the barrel, means on the barrel providing rearwardly opening internal notches, lug means projecting outwardly from the one member and removably received in the notches for securing the rear end plug in respective locked and unlocked rotational positions, a key ejector axially reciprocally movable in the barrel between the front end plug and the drive means and engaging a key inserted through the keyway, and means resiliently urging the key ejector forwardly in the barrel, whereby insertion of a key in the keyway serves to move the one member rearwardly to free the rotatable parts for rotation and enable the key to rotate the front end plug for rotating the rear end plug between the locked and unlocked positions thereof.
REFERENCES:
patent: 240397 (1931-04-01), Elmer
patent: 3524335 (1970-08-01), George
patent: 3661001 (1972-05-01), Glass
Chicago Lock Co.
Gerlach Norman H.
Wolfe Robert L.
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