Coil configuration for electronic coin tester and method of making
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United States of America Patent
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Mar 6, 1990
Grant Date -
N/A
app pub date -
Aug 16, 1988
filing date -
Aug 16, 1988
priority date (Note) -
Expired
status (Latency Note)
Importance
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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