G - Physics – 07 – F
Patent
G - Physics
07
F
341/50
G07F 5/10 (2006.01) G07D 3/14 (2006.01) G07D 5/00 (2006.01) G07D 5/08 (2006.01)
Patent
CA 1167139
ABSTRACT OF THE INVENTION The present invention relates to an apparatus for accepting or rejecting a single type of coin, which is designed and constructed only to accept genuine coins of a particular value or denomination, and to reject spurious coins or slugs which may have the same dimen- sions. The present invention also provides an auxiliary coin acceptor-rejector component or device which may readily be fitted into already existing coin operated devices so as to discriminate more accurately between genuine coins and spurious coins or slugs. In such apparatus a sensing coil is provided for discriminating between genuine and non-genuine coins by suitable cir- cuitry to actuate an accept solenoid to receive a genuine coin in an accept slot and to direct all other non- genuine coins to a reject slot. To discriminate between genuine and non-genuine coins two parameters are utilized. The first parameter provides discrimination by means of the current being proportional to voltage drop and the second parameter provides discriminations by a frequency shift, both of such discriminations being detectable when the coin passes through the sensing coil.
387613
Osler Hoskin & Harcourt Llp
Third Wave Electronics Company Inc.
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