Check-actuated control mechanisms – Including means to test validity of check – By testing material composition
Patent
1988-08-16
1990-03-06
Bartuska, F. J.
Check-actuated control mechanisms
Including means to test validity of check
By testing material composition
29605, 242 703, G07D 508, H01F 502, H01F 4108
Patent
active
049058142
ABSTRACT:
A coil used in electronic coin testers for testing a coin for the purpose of accepting a valid coin or rejecting a counterfeit coin in a coin-operated vending machine, game, telephone or the like is disclosed. A coin slot is provided having two opposing longitudinal walls spaced to accommodate a coin therebetween of either the sample coin type or the test coin type. Within each longitudinal wall a planar looped coil is provided that, upon inducement of an electric current, generates lines of magnetic flux which are normal to the opposing surfaces of the longitudinal walls throughout the length of the longitudinal walls.
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Parker Donald
Rollins Robert
Bartuska F. J.
Coin Mechanisms, Inc.
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