Check-actuated control mechanisms – Including noncontacting – relatively movable parts connected...
Patent
1979-01-30
1981-05-19
Tollberg, Stanley H.
Check-actuated control mechanisms
Including noncontacting, relatively movable parts connected...
G07F 302
Patent
active
042679168
ABSTRACT:
An arrangement for determining the denomination-indicative size of a token, coin or the like independent of precise positioning of the coin is disclosed which may include a coin chute of generally rectangular cross-section for determining a general pathway along which coins may serially pass an array of optical sensors. The array includes a first sensor which is actuated by any coin entering the sensing region and the coin is identified, as to diameter and therefore also denomination, by the most remote of the other sensors actuated by the coin while the first sensor remains actuated. For larger coins only the first sensor and one remote sensor are employed while for certain smaller coins a plurality of sensors equidistant from the first sensor are employed making coin identification independent of exact coin position within the array. The array may be dimensioned so that the smallest coin to be sensed actuates no other coin denomination sensor within the array while it is actuating the first sensor. In one form, the sensors comprise aligned pairs of light sources and light sensitive devices, with blockage of the light pathway therebetween, indicating coin presence. The light sensitive devices are coupled to digital circuitry for processing information from the array to determine actual coin denomination.
REFERENCES:
patent: 3939954 (1976-02-01), Collins
patent: 3980168 (1976-09-01), Knight
patent: 4148388 (1979-04-01), Reyner et al.
Black Charles H.
Eskow Cary N.
Hoffman John F.
Jeffers Albert L.
Keene Corporation
Tollberg Stanley H.
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