Lock and key system with improved tumblers in the lock

Details Lock and key system with improved tumblers in the lock Lock and key system with improved tumblers in the lock

2011-06-14

2011-06-14

Barrett, Suzanne D (Department: 3673)

Locks

Operating mechanism

Key

C070S392000, C070S493000

Reexamination Certificate

active

07958760

ABSTRACT:
A lock and key system is disclosed including locks of the kind comprising a cylindrical key plug (203) with locking tumblers (205) having a body part (206a) and an integral key sensing part (206b) for engagement with an associated key (100). The key sensing part (206b) of each locking tumbler comprises at least two neighbouring key contacting portions (210a,211a), confined within a limited region, for possible sliding engagement with a longitudinal code pattern of the associated key, at least one but not necessarily all of these key contacting portions of each locking tumbler actually engaging with a corresponding code portion of the associated key upon fully inserting the latter into the key slot of the lock.

REFERENCES:
patent: 588026 (1897-08-01), Stadtmuller
patent: 4235086 (1980-11-01), Genakis
patent: 4325241 (1982-04-01), Keller
patent: 4409807 (1983-10-01), Lipschutz
patent: 4635455 (1987-01-01), Oliver
patent: 4756177 (1988-07-01), Widen
patent: 4998426 (1991-03-01), Genakis
patent: 5101648 (1992-04-01), Kuster
patent: 5419168 (1995-05-01), Field
patent: 5943890 (1999-08-01), Field et al.
patent: 6257033 (2001-07-01), Ziv-Av
patent: 7181941 (2007-02-01), Eden, Jr.
patent: 7392676 (2008-07-01), Eden, Jr.
patent: 2004/0237614 (2004-12-01), Ketzler et al.
patent: 2006/0086164 (2006-04-01), Keller
patent: 42 28 098 (1993-11-01), None
patent: 44 19 999 (1995-12-01), None
patent: 945792 (1964-01-01), None
patent: WO-03/062570 (2003-07-01), None

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