Mother-and-daughter combination lock

Details Mother-and-daughter combination lock Mother-and-daughter combination lock

1997-05-02

1998-04-14

Boucher, Darnell M.

Locks

Special application

For portable articles

70312, 70316, E05B 6552

Patent

active

057379475

ABSTRACT:
A mother-and-daughter combination lock includes: a housing, a shackle lockable or unlockable in a first portion of the housing as controlled by a locking shaft and a plurality of dials and sleeves rotatably mounted in the housing; and a sliding door slidably held in the housing for covering and uncovering a security compartment recessed in a second portion of the housing as also controlled by the locking shaft, the dials and the sleeves, whereby either the shackle or the sliding door can be independently and individually locked or unlocked.

REFERENCES:
patent: 877682 (1908-01-01), Turman
patent: 1955809 (1934-04-01), Hobbs
patent: 2163852 (1939-06-01), Pond
patent: 3436937 (1969-04-01), Barrett
patent: 3695067 (1972-10-01), Bays
patent: 3837189 (1974-09-01), Atkinson
patent: 3979932 (1976-09-01), Piche
patent: 4641505 (1987-02-01), Maurice
patent: 4649723 (1987-03-01), Appelbaum
patent: 4838052 (1989-06-01), Williams et al.
patent: 4869082 (1989-09-01), Appelbaum
patent: 5046339 (1991-09-01), Krell
patent: 5090222 (1992-02-01), Imran
patent: 5134869 (1992-08-01), Gable
patent: 5280518 (1994-01-01), Danler et al.

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