Combination lock

Details Combination lock Combination lock

1997-10-06

1998-11-24

Boucher, Darnell M.

Locks

Portable

Padlocks

70312, 70316, E05B 3706

Patent

active

058393013

ABSTRACT:
A combination lock including a housing, a dial assembly, a press plate, and a latch means. When the dials are turned to a preset code, a hook may be pulled upwardly to cause a hook projection to extend out of a seat notch so that a first shaft post brings the entire dial assembly to displace to one side due to a clearance between a hook notch and a hook neck portion, so that shaft notches engage wedge-shaped projections on the housing. When the hook is pressed downwardly, the hook projection enters the seat notch so that the first shaft post enters the hook notch to cause a spring to reset, bringing the entire dial assembly to displace to the other side so that the shaft notches disengage from the wedge-shaped projections to achieve locking.

REFERENCES:
patent: 4048821 (1977-09-01), Bako et al.
patent: 4669286 (1987-06-01), Cheng
patent: 4899559 (1990-02-01), Chern
patent: 4970881 (1990-11-01), Hsiao
patent: 4974432 (1990-12-01), Blake
patent: 5765409 (1998-06-01), Yang

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