Permutation lock

Details Permutation lock Permutation lock

1986-09-29

1989-04-25

Wolfe, Robert L.

Locks

Operating mechanism

Combination

70 69, 70 74, 70315, E05B 3702

Patent

active

048235741

ABSTRACT:
A permutation lock comprises a housing having a rear wall and a front side closed off by a front plate. An axle extends transversely relative to a front-to-rear direction of the housing and carries rotary disks which project through slots in the front plate. A bolt is pivoted to the housing for rotation about an axis disposed parallel to the axle and situated immediately behind the front plate. The bolt extends rearwardly from the axis and has a locking portion at its rear end for engaging a hasp. Forwardly facing surfaces of the bolt engage and are cammed by the disks. The locking portion can extend through an opening in the rear wall and be shielded by a flap cut-out of the rear wall. Alternatively, the bolt can be V-shaped such that the locking portion extends from an apex of the V, the bolt is pivoted by one leg of the V, and the sensing surfaces are disposed on the other leg.

REFERENCES:
patent: 745664 (1903-12-01), Reiger
patent: 1723020 (1929-08-01), Erwin
patent: 1737800 (1956-03-01), Perkins
patent: 2136493 (1938-11-01), Denerich
patent: 2163853 (1939-06-01), Pond
patent: 3458016 (1969-08-01), Atkinson
patent: 3461697 (1969-08-01), Gehrie
patent: 3677042 (1972-07-01), Atkinson
patent: 4100775 (1978-07-01), Bako
patent: 4350030 (1982-09-01), Bromley
patent: 4467628 (1984-08-01), Zampini, Jr.
patent: 4574601 (1986-03-01), Werk et al.
patent: 4671088 (1987-06-01), Jeang
patent: 4682483 (1987-07-01), Werner

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