Combination disk lock comprising means for automatic scrambling

Details Combination disk lock comprising means for automatic scrambling Combination disk lock comprising means for automatic scrambling

1988-05-24

1990-10-09

Wolfe, Robert L.

Locks

Operating mechanism

Combination

70314, E05B 3700

Patent

active

049613324

ABSTRACT:
A lock comprising notched combination disks, a bolt movable in translation and urged to its extended position which may be moved solely when a coded combination has been formed by rotation of the combination disks, and means for driving the bolt to its retracted position. In accordance with the invention, the lock comprises means for locking the bolt in the retracted position, means for making said bolt drive means inoperative when the bolt is in its retracted position, and means for unlocking the bolt once the door has been opened then closed again.

REFERENCES:
patent: 470110 (1892-03-01), Dorn
patent: 1863537 (1932-06-01), Aster
patent: 2436859 (1948-03-01), Eras
patent: 2766608 (1956-10-01), Hirn
patent: 3176486 (1965-04-01), Richardson
patent: 3339382 (1967-09-01), Miller et al.
patent: 3369382 (1968-02-01), Russell et al.
patent: 3447348 (1969-06-01), Davenbaugh
patent: 3481167 (1969-02-01), Barner
patent: 4147045 (1979-04-01), Testa
patent: 4257249 (1981-03-01), Johns-Hunt

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