发明名称 |
Valid coin acceptor for coin actuated apparatus |
摘要 |
An improved coin acceptor mechanism employing an oscillator and a resonant circuit for detecting the electromagnetic effect of valid and invalid coins passing through a coil of the tuned circuit. A particular linear coil configuration provides a unique signature for each coin including at least one maximum and one minimum amplitude level of resonant circuit current. A comparator establishes at least two electrical signal amplitude windows representative of each valid coin signature. A logic circuit responds only to the coin falling within the two electrical signal amplitude windows for actuation. A novel coil design and assembly are enclosed.
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申请公布号 |
US4353453(A) |
申请公布日期 |
1982.10.12 |
申请号 |
US19800138996 |
申请日期 |
1980.04.10 |
申请人 |
ATN RESEARCH & DEVELOPMENT CORPORATION |
发明人 |
PARTIN, NORMAN D.;WATSON, CHARLES L. |
分类号 |
(IPC1-7):G07F3/02 |
主分类号 |
(IPC1-7):G07F3/02 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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