Changeable combination lock

Details Changeable combination lock Changeable combination lock

2005-04-19

2005-04-19

Gall, Lloyd A. (Department: 3676)

Locks

Portable

Padlocks

C070S312000

Reexamination Certificate

active

06880371

ABSTRACT:
The present invention relates to a changeable combination lock disposed with a lock body. A lock bolt is disposed inside the lock body. More than one digit wheel is sleeved on the lock bolt. One end of the lock body is disposed with a retaining ring. A notch is on the retaining ring. A mark is disposed on the surface of the retaining ring for fitting in with the notch. An actuator and a retaining member are disposed on the retaining ring. When in use, a set of combination is decided and the mark on the retaining ring is aligned with the combination so that a lock bar inserts into a lock hole, therefore, the combination can be changed according to the need for preventing the intruder from easily unlocking the lock.

REFERENCES:
patent: 901972 (1908-10-01), Kone
patent: 1205781 (1916-11-01), Pirog
patent: 4354366 (1982-10-01), Bako
patent: 4610152 (1986-09-01), Duringer
patent: 5406811 (1995-04-01), Nakai
patent: 5924313 (1999-07-01), Kuo
patent: 5934120 (1999-08-01), Kuo
patent: 6209368 (2001-04-01), Lee
patent: 6386005 (2002-05-01), Kuo

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