Device for checking metal pieces, particularly coins

Details Device for checking metal pieces, particularly coins Device for checking metal pieces, particularly coins

1978-11-02

1980-11-18

Rolla, Joseph J.

Check-actuated control mechanisms

Including noncontacting, relatively movable parts connected...

194100R, G07F 302

Patent

active

042340713

ABSTRACT:
A device for checking coins or other metal pieces has an electromagnetic detector responsive to the passage of the coins which produces an output voltage which varies as a result of the passing coins. This voltage is measured at predetermined periods and compared with programmed voltage values stored in a memory and which are characteristic of the coins to be checked.

REFERENCES:
patent: 3152677 (1964-10-01), Phillips
patent: 3506103 (1970-04-01), Kuckens et al.
patent: 3901368 (1975-08-01), Klinger
patent: 4105105 (1978-08-01), Braum

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