Combination lock with pass-key override

Details Combination lock with pass-key override Combination lock with pass-key override

2008-06-03

2008-06-03

Engle, Patrcia (Department: 3673)

Locks

Operating mechanism

Combination or key

C070S312000, C070S071000

Reexamination Certificate

active

07380427

ABSTRACT:
The present invention provides a latch-type of lock2that includes an override mechanism to grant access to an article of luggage1by an override tool such as a master key. The present invention can be used on any type of storage facility and/or transport vessel including large storage containers, such as molded plastic storage and shipping boxes for linens and the like, briefcases, computer bags, messenger bags, backpacks, hard or soft-sided totes, hybrids, other molded or non-molded vessels, framed cases, unframed cases, and so on. The latch lock2of the present invention includes a mechanism for clearing a pathway46,that, when the lock2is in a locked condition, is blocked. A pivot arm12is provided to block/unblock pathway46.The pivot arm12is operated by a cam10,which is in turn operated by the override tool. When the lock2has been overridden, the pivot arm12rotates out of pathway46,thereby allowing lateral movement of a slider6,which in turn allows displacement of a lever8,thereby granting access to the contents of the luggage1.

REFERENCES:
patent: 1979560 (1934-11-01), Levine
patent: 3390556 (1968-07-01), Constable
patent: 3408839 (1968-11-01), Walters
patent: 4499745 (1985-02-01), Ricouard et al.
patent: 4557122 (1985-12-01), Hwang
patent: 4671088 (1987-06-01), Jeang
patent: 5237842 (1993-08-01), Rasch et al.
patent: 5485734 (1996-01-01), Yang
patent: 5491992 (1996-02-01), Mandall
patent: 2005/0034492 (2005-02-01), Yu

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