Combination lock and padlock combination with mechanism for...

Details Combination lock and padlock combination with mechanism for... Combination lock and padlock combination with mechanism for...

2007-01-02

2007-01-02

Gall, Lloyd A. (Department: 3676)

Locks

Portable

Padlocks

C070S025000, C070S284000, C070S285000, C070S432000

Reexamination Certificate

active

11317069

ABSTRACT:
A combination lock and padlock combination for visually indicating a key opening permission being allowed or not by forming two opposite marks on a wheel is disclosed. In response to turning the wheel to conceal the marks, a co-owner is aware that a key opening mechanism is disabled. Also, forcedly inserting a key into the key opening mechanism for opening the combination will be futile since a downward movement path of a protrusion on a spring biased shuttle assembly for disengaging with an indentation of the wheel is blocked by either recessed portion of the wheel even if an engagement member of the key opening mechanism is aligned with mated bottom legs of the shuttle assembly.

REFERENCES:
patent: 6848283 (2005-02-01), Lin
patent: 2004/0226323 (2004-11-01), Ling et al.
patent: 2004/0226324 (2004-11-01), Loughlin et al.
patent: 2005/0132762 (2005-06-01), Yu
patent: 2005/0262902 (2005-12-01), Ling et al.
patent: 2006/0107708 (2006-05-01), Yu
patent: 2006/0107709 (2006-05-01), Yu
patent: 2006/0107710 (2006-05-01), Yu

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