Keyless lock

Details Keyless lock Keyless lock

1983-03-09

1984-10-16

Smith, Gary L.

Locks

Portable

Padlocks

70306, 70312, 70321, 70327, 70DIG9, E05B 3714, E05B 3718

Patent

active

044766980

ABSTRACT:
A keyless lock which eliminates the requirement for visual contact with the lock to effect disengagement thereof. A series of push buttons are operated by depressing each push button the proper number of times according to a predetermined numerical code. The push button increment ratchet wheels having slots therein. When the slots are in proper alignment with lock releasing pins, the lock can be opened.

REFERENCES:
patent: 86908 (1869-02-01), Cole et al.
patent: 221258 (1879-11-01), Walker
patent: 543404 (1895-07-01), Root
patent: 1056667 (1913-03-01), Hansen et al.
patent: 1123061 (1914-12-01), Alanchikoff
patent: 1483993 (1924-02-01), Sprowles et al.
patent: 2049983 (1936-08-01), Voges
patent: 2852928 (1958-09-01), Miller
patent: 2928271 (1960-03-01), Watson
patent: 4047406 (1977-09-01), Foote

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