Error-proofing combination padlock

Details Error-proofing combination padlock Error-proofing combination padlock

2006-12-12

2006-12-12

Barrett, Suzanne Dino (Department: 3676)

Locks

Portable

Padlocks

C070S312000, C070S315000, C070S323000, C070S326000, C070S022000

Reexamination Certificate

active

07146830

ABSTRACT:
An error-proofing combination padlock has a casing assembly, multiple dials, multiple sleeves, a shackle, a locking bolt and a spring. The dials are mounted rotatably inside the casing assembly. The sleeves are mounted rotatably and respectively inside the dials. The shackle is mounted retractably and pivotally on the casing assembly. A locking bolt is mounted slidably through the sleeves. The error-proofing combination padlock prevents dials from rotating except when the shackle is located in the locking (first) position or the combination-resetting (third) position and avoids a new and unintended unlocking combination arising during a resetting operation of the combination.

REFERENCES:
patent: 4444029 (1984-04-01), Remington
patent: 4733548 (1988-03-01), Ling
patent: 5125248 (1992-06-01), Ling
patent: 5520032 (1996-05-01), Ling
patent: 5746075 (1998-05-01), Yang
patent: 6904776 (2005-06-01), Lin
patent: 7007521 (2006-03-01), Misner et al.
patent: 2005/0034492 (2005-02-01), Yu
patent: 2005/0092036 (2005-05-01), Lai

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