Method and apparatus for coin selection
First Claim
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1. A METHOD OF TESTING COINS COMPRISING PASSING AN ALTERNATING MAGNETIC FIELD THROUGH THE COIN TO BE TESTED, MEASURING THE VARIATION IN THE FIELD STRENGTH DUE TO THE COIN, AND APPLYING THE MEASUREMENT SO OBTAINED TO DISCRIMINATION MEANS SUCH THAT COINS CAUSING A VARIATION IN FIELD STRENGTH THAT LIE WITHIN A PRE-DETERMINED RANGE ARE FOUND TO BE ACCEPTABLE AND ALL OTHERS REJECTED.
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1 Claim
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1. A METHOD OF TESTING COINS COMPRISING PASSING AN ALTERNATING MAGNETIC FIELD THROUGH THE COIN TO BE TESTED, MEASURING THE VARIATION IN THE FIELD STRENGTH DUE TO THE COIN, AND APPLYING THE MEASUREMENT SO OBTAINED TO DISCRIMINATION MEANS SUCH THAT COINS CAUSING A VARIATION IN FIELD STRENGTH THAT LIE WITHIN A PRE-DETERMINED RANGE ARE FOUND TO BE ACCEPTABLE AND ALL OTHERS REJECTED.
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Current AssigneeMalcolm P. Macmartin, Norbert L. Kusters
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Original AssigneeMalcolm P. Macmartin, Norbert L. Kusters
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InventorsKusters, Norbert L., Macmartin, Malcolm P.
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Application NumberUS04/551,992Time in Patent Office666 DaysField of SearchUS Class Current194/318CPC Class CodesG07D 5/08 Testing the magnetic or ele...
