Coin validator

Details Coin validator Coin validator

1974-06-17

1976-01-20

Reeves, Robert B.

Check-actuated control mechanisms

Including noncontacting, relatively movable parts connected...

328147, G07F 302

Patent

active

039332322

ABSTRACT:
The invention relates to a single chute, multidenomination, coin validator using a transformer to generate a transient signal whose amplitude varies with the denomination of the coin sensed by the transformer. The signal may operate more than one of a plurality of "window" type comparators corresponding respectively to the valid denominations but, if so, it causes sequential operation thereof. A control signal is generated at the peak of the signal amplitude and the criterion of validity is the coincidence of the control signal and a comparator output signal. A coin gate may be used to prevent valid coins being retrieved from the coin chute.

REFERENCES:
patent: 3373856 (1968-03-01), Kusters et al.
patent: 3599096 (1971-08-01), Stemples et al.
patent: 3599771 (1971-08-01), Hinterstocket
patent: 3682286 (1972-08-01), Prumm
patent: 3797307 (1974-03-01), Johnston

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