Locks – Operating mechanism – Key
Patent
1996-10-07
1998-05-19
Gall, Lloyd A.
Locks
Operating mechanism
Key
70369, 70371, 70383, 70411, 70495, E05B 2702
Patent
active
057524009
ABSTRACT:
A universal lock and key assembly in which the lock is re-keyable and the key is also changeable. The key has an elongated left side member, an elongated right side member, and an elongated central member. A plurality of key teeth are captured between the shank portions of the left and right side members. The key teeth are interchangeable so that any desired sequence can be arranged to give a predetermined profile to the key. The universal lock has a combination top pin housing and tubular sleeve assembly having a top pin housing and a tubular sleeve portion. A bottom pin cylinder is removably received in the tubular sleeve portion and its bottom pins can be removed and replaced in an order that mates with the key teeth of the key assembly. The structure of the system allows an individual to change both the configuration of the key and also the mating structure within the lock so that it will be operable.
REFERENCES:
patent: 2370862 (1945-03-01), Johnstone
patent: 2391832 (1945-12-01), Johnstone
patent: 4377940 (1983-03-01), Hucknall
patent: 4802352 (1989-02-01), Andreoli
patent: 5211044 (1993-05-01), Kim
patent: 5325690 (1994-07-01), Adler et al.
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