Lock-key system

Details Lock-key system Lock-key system

2005-02-08

2005-02-08

Walsh, John B. (Department: 2151)

Locks

Operating mechanism

Key

C070S336000, C070S405000

Reexamination Certificate

active

06851292

ABSTRACT:
The invention relates to a lock-key system comprising a flat key (1), which is insertable into the keyway of a cylinder core (3), wherein grooves (4) and ribs (5) inside the keyway are assigned to corresponding ribs (5a) and grooves (4a) located on both flat sides of the key (1), wherein the key is subdivided from the key spine (6) to the key facing into different profile sections. The middle profile section is assigned to at least one groove (4) on one outer surface of the keyway (2) and to a rib (5) on the opposite outer surface of the keyway. Both the groove (4) as well as the rib (5) comprise a flank (4′, 5′), which extends perpendicular or substantially perpendicular to the center plane of the key or of the keyway, and comprise a flank (4″, 5″), which extends slantingly to this center plane. The perpendicular or substantially perpendicular flank of the groove faces the opposite slanted flank of the rib, and the perpendicular or substantially perpendicular flank of the rib faces the opposite slanted flank of the groove.

REFERENCES:
patent: 4368629 (1983-01-01), Prunbauer
patent: 4653298 (1987-03-01), Tietz
patent: 4787225 (1988-11-01), Hauser et al.
patent: 4964288 (1990-10-01), Braun et al.
patent: 5715717 (1998-02-01), Widen
patent: 5797287 (1998-08-01), Prunbauer
patent: 5809816 (1998-09-01), Widen
patent: 5845525 (1998-12-01), Widen
patent: 5964112 (1999-10-01), Stefanescu
patent: 6023954 (2000-02-01), Field
patent: 6615628 (2003-09-01), Lou
patent: 43 04 604 (1994-08-01), None
patent: 0 261 298 (1988-03-01), None
patent: 0 928 867 (1999-07-01), None

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