Locks – Operating mechanism – Combination
Patent
1985-03-29
1986-12-30
Wolfe, Robert L.
Locks
Operating mechanism
Combination
70DIG59, 340762, E05B 100
Patent
active
046319409
ABSTRACT:
A selectively illuminated digit display combination lock dial assembly to be coupled to the spindle of a combination lock for dialing a lock opening combination of numbers, including a rotatable dial member to dial the numbers of the combination, a dial backup case to be mounted on a security container having a coupling member journaled therein connected with the spindle and with the dial member. The backup case having a sight passage and digit numeric generating and display device located outwardly of the dial member periphery to generate and visually display numbers signifying the dial member angular positions. An encoder disc is rotated in correlation with the coupling member having plural light passing slots for activating sensors to produce electrical count signals, and electronic circuitry counts the count signals and senses direction of dial rotation to activate the numeric display device to show numeric dial positions upon reaching a first number of revolutions and to activate the numeric display device to show numeric dial position when predetermined numbers of revolutions are reached in a predetermined sequence.
REFERENCES:
patent: 1880105 (1932-09-01), Reifel
patent: 3702070 (1972-11-01), Gartner
patent: 3764859 (1973-10-01), Wood et al.
patent: 3835680 (1974-09-01), Evans
patent: 4099172 (1978-07-01), Montanari et al.
patent: 4241343 (1980-12-01), Fan et al.
Krivec Bert
Murphree Gary R.
Gall Lloyd A.
Sargent & Greenleaf, Inc.
Wolfe Robert L.
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