Coin selecting apparatus

Check-actuated control mechanisms – Including means to test validity of check – By testing material composition

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G07D 508

Patent

active

050782517

ABSTRACT:
A coin selecting apparatus includes a coin detection coil disposed in a coin channel for outputting a coin detection signal having a waveform changing gradually as the coin passes in the channel and uniquely accordance with the kind of the coin, and window device having a plurality of different windows for corresponding coins to be detected for producing a pulse signal when the coin detection signal is in a window. A timer device monitors the time duration of the pulse signal to thereby determine the validation and kind of the coin in accordance with the output from the timer device. A counter counts pulse signals produced by the window device to thereby determine the validation and kind of the coin in accordance with the count therein.

REFERENCES:
patent: 3682286 (1972-08-01), Prumm
patent: 4091908 (1978-05-01), Hayashi et al.
patent: 4124111 (1978-11-01), Hayashi

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