Pad locks with changeable code number

Details Pad locks with changeable code number Pad locks with changeable code number

1998-10-02

2000-07-04

Barrett, Suzanne Dino

Locks

Portable

Padlocks

70 28, 70312, E05B 3706

Patent

active

060821558

ABSTRACT:
A pad lock includes a casing including a hook extended outwards therefrom and several number wheels rotatably mounted in the casing. Each number wheel is partially exposed outside the casing for manual turning. Each number wheel includes a code wheel releasably engaged thereto to rotate therewith. A locking device is mounted in the casing and movable between a first position that retains the code wheels in place to allow free rotational movements of the number wheels for code number changing and a second position that disengages from the code wheels such that each code wheel is engaged with an associated number wheel to rotate therewith. An unlocking device includes a pivotal end pivotally mounted in the casing, a press end located outside the casing for manual pressing, an actuating end located in the casing and engaged with the locking device to move therewith, and a latch end located outside the casing and releasably engaged with the hook. A code-changing button has an outer end outside the casing for manual pressing and an inner end releasably engaged with the locking device to retain the locking device in the first position. The code-changing button is retained in a position that engages with and thus retains the locking device in the first position.

REFERENCES:
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patent: 4343164 (1982-08-01), Bako
patent: 4520641 (1985-06-01), Bako
patent: 4711108 (1987-12-01), Garro
patent: 4803856 (1989-02-01), Ling
patent: 4831860 (1989-05-01), Sheiman et al.
patent: 4860561 (1989-08-01), Hwang
patent: 4866959 (1989-09-01), Ling
patent: 4970881 (1990-11-01), Hsiao
patent: 5042277 (1991-08-01), Jenn-Rong
patent: 5193367 (1993-03-01), Ling
patent: 5359867 (1994-11-01), Ling et al.
patent: 5396785 (1995-03-01), Chen
patent: 5609048 (1997-03-01), Ling

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