Check-actuated control mechanisms – Including means to test validity of check – By testing material composition
Patent
1988-12-29
1990-11-20
Rolla, Joseph J.
Check-actuated control mechanisms
Including means to test validity of check
By testing material composition
194302, 324236, G07D 508
Patent
active
049711873
ABSTRACT:
A coin to be judged is passed near an oscillation coil excited by an exciting signal containing a plurality of harmonic components, that is nonsinusoidal alternating current, and the coin is sorted in accordance with a signal produced by a receiving coil electromagnetically coupled with the oscillation coil and containing at least two harmonic components. The signal induced in the receiving coil may be a composite signal of at least two harmonic components. This signal may consist of a first signal of a composite of at least two harmonic components and a second signal of a composite of at least two other harmonic components.
REFERENCES:
patent: 3059749 (1962-10-01), Zinke
patent: 3506103 (1970-04-01), Kuckens et al.
patent: 3869663 (1975-03-01), Tschierse
patent: 3918563 (1975-11-01), Schwippert et al.
patent: 4091908 (1978-05-01), Hayashi et al.
patent: 4538719 (1985-09-01), Gray et al.
patent: 4717006 (1988-01-01), Chapman et al.
patent: 4901017 (1990-02-01), Zinke
Fukuda Ichiro
Furuya Yonezo
Ishida Takeshi
Yoshizawa Genzo
Nguyen T.
Nippon Conlux Co., Ltd.
Rolla Joseph J.
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