Check-actuated control mechanisms – Including means to test validity of check – By testing material composition
Patent
1995-01-12
1996-11-12
Bartuska, F. J.
Check-actuated control mechanisms
Including means to test validity of check
By testing material composition
G07D 508
Patent
active
055730990
ABSTRACT:
A method for identifying metallic coins and tokens, comprising: applying an input signal to an ac-bridge; bringing a coin/token in the vicinity of one arm of the ac-bridge; sensing an output signal of the ac-bridge; and associating the output signal with presence of the coin/token in the vicinity of the arm of the ac-bridge.
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Church Donald W.
Gashus Ove K.
Bartuska F. J.
J. J. Mackay Canada Limited
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