Method and apparatus for re-keying a lock

Details Method and apparatus for re-keying a lock Method and apparatus for re-keying a lock

1999-05-18

2000-11-07

Howell, Daniel W.

Cutting by use of rotating axially moving tool

With work-engaging structure other than tool or tool-support

Adjustable, tool-guiding jig

408104, B23B 4100, B23B 4902

Patent

active

061427179

ABSTRACT:
A re-keying process includes inserting a peg (65) into a plug (10) of a cylinder lock to be re-keyed. The peg (65) partially blocks a key slot (18) in the plug (10), thereby preventing the original key (30) to be inserted into the plug (10). A longitudinal groove (75) is then formed on the blade (74) of a key (70), thereby allowing the key (70) to be inserted into the partially blocked key slot (18). To insert the peg (65) into the plug (10), the plug (10) is placed in a bore (45) of a drill block (40). An alignment bolt (61) is used to positioning the plug (10) in the bore (45). A drill bit (62) is inserted into a drill guide hole (52) in the drill block (40) to drill a hole (63) in the plug (10). The peg (65) is then screwed into the hole (63).

REFERENCES:
patent: 2353757 (1944-07-01), Priest, Jr.
patent: 2453482 (1948-11-01), Woolson
patent: 4005945 (1977-02-01), Gutman
patent: 4461603 (1984-07-01), Klee et al.
patent: 4712950 (1987-12-01), Reynolds
patent: 5211044 (1993-05-01), Kim
patent: 5682779 (1997-11-01), Dolev
patent: 5688085 (1997-11-01), Watts
patent: 5752400 (1998-05-01), Kim

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