Locks – Special application – For closures
Patent
1996-03-27
1997-06-17
Meyers, Steven N.
Locks
Special application
For closures
70138, 70213, 70312, E05B 6544
Patent
active
056387083
ABSTRACT:
A combination lock device with latch bolt includes a combination lock, a rotary rod means, a faceplate, a securing seat, a turning means, a slide piece, a latch bolt and a housing. In order to unlock the combination lock, number dials are turned to a preset code number so that a lock hook disengages from a retain slot of the faceplate. The user may then turn the combination lock counter-clockwisely to cause the turning means to turn therewith, so that a connecting piece at a bottom side of the rotary rod means also rotate, causing a notch of the connecting piece to push a post of a turning piece to displace through 90 degrees. A slide piece is caused to displace forwardly as a result of the post pushing a slide slot, so that a movable pin on two U-shaped indentations of the slide piece displaces upwardly and then downwardly by means of a spring, causing the latch bolt to retract into the housing. Locking may be achieved by reverse operation.
REFERENCES:
patent: 802062 (1905-10-01), Vieweg
patent: 1567901 (1925-12-01), Blair
patent: 1586496 (1926-05-01), Wildrick
patent: 2119704 (1938-06-01), Denerich
patent: 3543545 (1970-12-01), Budzyn
patent: 3545238 (1970-12-01), Gehrie et al.
patent: 4123923 (1978-11-01), Bako
patent: 4646547 (1987-03-01), Scelba et al.
patent: 4852371 (1989-08-01), Pfeiffer
Lecher Donald J.
Meyers Steven N.
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