Method and device for detecting coins

Details Method and device for detecting coins Method and device for detecting coins

1988-08-22

1991-02-05

Bartuska, F. J.

Check-actuated control mechanisms

Including means to test validity of check

By testing material composition

453 3, G07D 500

Patent

active

049897152

ABSTRACT:
A method and a detector for controlling coins inserted into a slot of a device are disclosed, in which a device for imparting oscillations to a coin is arranged, The frequency of oscillations is measured and compared with a predetermined value in an electronic device which actuates a coin separating device which guides unsuitable coins into a separation passage.

REFERENCES:
patent: 3012649 (1961-12-01), White et al.
patent: 3939953 (1976-02-01), Miyazawa
patent: 4342229 (1982-08-01), Massa

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