Cylinder lock and key combination including a profiled key

Details Cylinder lock and key combination including a profiled key Cylinder lock and key combination including a profiled key

1997-10-03

1998-09-22

Gall, Lloyd A.

Locks

Operating mechanism

Key

70406, 70409, 70419, 70420, 70453, E05B 1508

Patent

active

058098160

ABSTRACT:
A cylinder lock and key combination, where the key (20) has an undercut profile groove (24) at one side surface (22) thereof and, in the key slot (13), the lock key plug has a corresponding profile tongue (15) with a downwardly projecting end portion (15a), which fills up the undercut portion (29) of the key profile groove (24) upon insertion of the key into the lock.

REFERENCES:
patent: D325160 (1992-04-01), Best et al.
patent: D325334 (1992-04-01), Best et al.
patent: D325337 (1992-04-01), Best et al.
patent: D325512 (1992-04-01), Best et al.
patent: 1244450 (1917-10-01), Christoph
patent: 2023207 (1935-12-01), Olson
patent: 3393542 (1968-07-01), Crepinsek
patent: 3413831 (1968-12-01), Crepinsek
patent: 3742744 (1973-07-01), Lumme
patent: 5715717 (1998-02-01), Widen

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