Combination lock

Details Combination lock Combination lock

1998-06-04

1999-05-04

Barrett, Suzanne Dino

Locks

Portable

Padlocks

70 30, 70312, E05B 3706

Patent

active

058990992

ABSTRACT:
A combination lock includes a female member, a number disc, a plurality of activate rings, a plurality of cushions, a plurality of toothed rings, a housing and a male member. The number disc, the activate rings, the cushions and the toothed rings are sequentially inserted on a cylinder of the female member and with the exception of the number disc, are contained in the housing. Then the number disc is rotated clockwise and counterclockwise, with the snap means of the number disc moving a first snap means of a first toothed ring and the second snap means of the first toothed ring moving a first snap means of a second toothed ring and so on. Such aligns the notches of all activate rings to form a passageway corresponding to the slot of the cylinder for insert of a rod with teeth of the male member. The lock is locked and unlocked by rotating only the number disc.

REFERENCES:
patent: 200617 (1878-02-01), King et al.
patent: 226069 (1880-03-01), Hathaway
patent: 879747 (1908-02-01), Crim et al.
patent: 1021456 (1912-03-01), Evans
patent: 1468027 (1923-09-01), Lindberg
patent: 1551952 (1925-09-01), Hanflig
patent: 1777424 (1930-10-01), Atkins
patent: 2018745 (1935-10-01), Schlitz
patent: 3999408 (1976-12-01), Kawakami
patent: 4302955 (1981-12-01), Kawakami
patent: 5027623 (1991-07-01), Ling
patent: 5636539 (1997-06-01), Tsai
patent: 5749251 (1998-05-01), Keefe

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