Locks – Operating mechanism – Key
Patent
1996-10-22
1998-09-01
Dino, Suzanne
Locks
Operating mechanism
Key
70383, E05B 2706
Patent
active
057995192
ABSTRACT:
A lock for use with a lock code setting key and a new lock code setting key, and having (a) a first cylindrical tube with a first radially extending slot for receiving a first biasing element and a first locking element, (b) a driving element having an axially extending key hole and a radially extending peripheral hole for receiving a second locking element, and (c) a second cylindrical tube arranged between the first cylindrical tube and the driving element and having a radially extending through hole for receiving a third locking element and a radially extending positioning hole for receiving a second biasing element and a fourth locking element. A locking code of the lock can be changed by (a) inserting the lock code setting key into the keyhole thereby positioning the third locking element such that a first end is aligned with the first interface and a second end is aligned with the second interface, (b) turning the lock code setting key such that the second biasing element pushes the fourth locking element against the second locking element, (c) removing the lock code setting key from the keyhole, and (d) inserting the new lock code setting key into the keyhole.
REFERENCES:
patent: 3656328 (1972-04-01), Hughes
patent: 3742744 (1973-07-01), Lumme
patent: 3943739 (1976-03-01), Genakis
patent: 4612787 (1986-09-01), Prunbauer et al.
patent: 4732023 (1988-03-01), Shen
patent: 4836002 (1989-06-01), Monahan
patent: 5485735 (1996-01-01), Laabs et al.
patent: 5617750 (1997-04-01), Preddey
patent: 5685184 (1997-11-01), Gallagher
Dino Suzanne
Michaelson Peter L.
Pokotylo John C.
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