Resettable tumbler lock

Details Resettable tumbler lock Resettable tumbler lock

2006-02-16

2008-11-25

Engle, Patricia L (Department: 3673)

Locks

Operating mechanism

Key

C070S351000, C070S378000, C070S404000, C070SDIG037

Reexamination Certificate

active

07454934

ABSTRACT:
A resettable tumbler lock includes: a lock housing; a sleeve mounted rotatably in the lock housing and formed with a plurality of tumbler bores; a cylindrical latch-connecting part mounted rotatably in the lock housing and formed with a plurality of tumbler holes and a plurality of blind holes; and a plurality of spring-biased tumbler units. The sleeve is rotatable relative to the latch-connecting part between first and second angular positions. At least one of the tumbler bores in the sleeve has an axial projection that does not coincide with that of an aligned one of the tumbler holes in the latch-connecting part when the sleeve is disposed at a predetermined position between the first and second angular positions.

REFERENCES:
patent: 3648492 (1972-03-01), Walters et al.
patent: 3903720 (1975-09-01), Scherbing
patent: 4235086 (1980-11-01), Genakis
patent: 4621510 (1986-11-01), Scherbing
patent: 4899565 (1990-02-01), Steinbach
patent: 5018376 (1991-05-01), Lee
patent: 5419168 (1995-05-01), Field
patent: 5640865 (1997-06-01), Widen
patent: 6357271 (2002-03-01), Hsu
patent: 6550299 (2003-04-01), Lin
patent: 7234330 (2007-06-01), Tseng

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