Dial for a combination lock

Details Dial for a combination lock Dial for a combination lock

2007-04-05

2008-10-14

Gall, Lloyd A (Department: 3673)

Locks

Operating mechanism

Combination

C070S190000, C070S316000, C070S324000, C070S332000

Reexamination Certificate

active

07434430

ABSTRACT:
The present invention provides a dial for a combination lock, which mainly includes a toothed wheel additionally configured on a side of conventional type dial provided with an internally mounted notched wheel. A plurality of external teeth are circum-located on an outer edge of the toothed wheel, and a center of another notched wheel is provided with a rotating shaft, lateral to which is provided with a notch. A plurality of teeth spacings circum-located on an outer edge of the notched wheel mutually engage with external teeth of the notched wheel of the dial. Accordingly, the dial is able to simultaneously actuate and rotate two notched wheels, thereby improving innovative effectiveness of the combination lock.

REFERENCES:
patent: 364467 (1887-06-01), Baum
patent: 1643244 (1927-09-01), House
patent: 2144047 (1939-01-01), Eden
patent: 2635449 (1953-04-01), Coleman
patent: 2677265 (1954-05-01), Bergendahl
patent: 3851507 (1974-12-01), Gehrie
patent: 4249469 (1981-02-01), Craske
patent: 4669286 (1987-06-01), Cheng
patent: 4787222 (1988-11-01), Irazoqui et al.
patent: 4905488 (1990-03-01), Hatsuo
patent: 5007262 (1991-04-01), Nakai

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