Locks – Operating mechanism – Key
Reexamination Certificate
2008-05-27
2008-05-27
Gall, Lloyd A. (Department: 3673)
Locks
Operating mechanism
Key
C070S409000
Reexamination Certificate
active
11603957
ABSTRACT:
A cylinder lock plug that utilizes an axially moving sidebar. The sidebar is displaced axially by a key positioning mechanism on the blade of a uniquely configured key. Also on the key are unique short grooves on the lateral sides of the key blade running substantially perpendicular to the longitudinal axis of the key blade. The short grooves are configured complementary to an inner surface of the axially moving sidebar. Only the properly configured key can receive the sidebar as the key is turned to rotate the cylinder lock plug and the short grooves receive the inner surface. The invention is meant to be used with additional locking mechanisms, such as, for example, tumblers.
REFERENCES:
patent: 5615566 (1997-04-01), Brandt
patent: 5797287 (1998-08-01), Prunbauer
patent: 6477875 (2002-11-01), Field et al.
patent: 6945082 (2005-09-01), Field et al.
patent: 7213429 (2007-05-01), Armstrong et al.
patent: 2005/0155399 (2005-07-01), Armstrong et al.
patent: 2005/0172687 (2005-08-01), Segien et al.
patent: 2828343 (1980-01-01), None
patent: WO 93/09317 (1993-05-01), None
Field Brandon S.
Field Tyler H.
Factor & Lake
Gall Lloyd A.
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