Code variable combination lock

Details Code variable combination lock Code variable combination lock

1989-02-03

1990-11-20

Wolfe, Robert L.

Locks

Portable

Padlocks

70312, E05B 3706

Patent

active

049708813

ABSTRACT:
The present disclosure is related to a code variable combination lock which is equipped with a code setting and locking assembly made up of a number of dial wheels having consecutive digits disposed thereon and a number of corresponding wheel sleeves which all are mounted on a lock core with a biasing spring and a stop member disposed at the end thereof. A push bracket having a latch hook disposed at the front end thereof is slidably engaged with the rightmost wheel sleeve. On the inner and outer surfaces of each wheel sleeve are disposed protrusions, and the inner wall of each dial wheel is provided with a plurality of spaced grooves. By actuation of the latch hook forward or backward with the protrusions on the wheel sleeves in selective conformance or non-conformance to the grooves on the dial wheels and on the lock core and to a flat plane defined at the front end of the lock core, the dial wheels can be rotated freely for setting new code or locked without moving for protection of the code, the present combination lock can be unlocked once the lock core is permitted to move forward over the wheel sleeves and dial wheels.

REFERENCES:
patent: 2160698 (1939-05-01), Herbst
patent: 3410121 (1968-11-01), Morin
patent: 3720082 (1973-03-01), Feinberg et al.
patent: 3837189 (1974-09-01), Atkinson
patent: 4308731 (1982-01-01), Remington
patent: 4327566 (1982-05-01), Ling
patent: 4444029 (1984-04-01), Remington
patent: 4445348 (1984-05-01), Saitoh
patent: 4733548 (1988-03-01), Ling
patent: 4742700 (1988-05-01), Ling
patent: 4766748 (1988-08-01), Yang
patent: 4829794 (1989-05-01), Crown

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