Coin sorting machine

Details Coin sorting machine Coin sorting machine

1982-02-01

1984-02-14

Tollberg, Stanley H.

Check-actuated control mechanisms

Including noncontacting, relatively movable parts connected...

194100A, G07D 508

Patent

active

044310145

ABSTRACT:
The specification discloses a coin-sorting device capable of distinguishing between an acceptable specie and an unacceptable slug. The device includes an impedance coil, positioned adjacent the coin passage and incorporated into a bridge circuit, and a decision unit reponsive to the bridge circuit for detecting the passage of a coin and determining whether the coin is a specie or a slug. The signal received from the bridge circuit is compared by a checkup circuit with two reference values to improve the reliability of the device.

REFERENCES:
patent: 4206775 (1980-06-01), Tanaka
patent: 4228811 (1980-10-01), Tanaka et al.
patent: 4257435 (1981-03-01), Tanaka et al.
patent: 4275806 (1981-06-01), Tanaka et al.

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