Coin validator
CA 1320746 C · Owner: Yoshihara, Kenzo · Inventors: Yoshihara, Kenzo
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A coin validator for discerning a thickness or a Pattern of a coin in a non-contact manner. When the coin passes through a coin path, a coin sensor senses the passage of the coin to cause a change in a resonant frequency of a resonator and hence to fluctuate a resonant output voltage. The thickness and pattern of the coin are detected in accordance with that fluctuation. The resonator has a variable capacitance diode added thereto as a resonant element. If the resonant frequency of the resonator deviates out of a reference resonant frequency range a voltage, corresponding to the deviation is applied across the variable capacitance diode to provide feedback control such that the resonant …
Read the whole patent
Listed from its CIPO record in Patent Yard's archive of Canadian patents past their term. Its claims, description and drawings are in the CIPO record and on Google Patents, and the Claude kit works from them.
Why it's free to use
- Granted July 27, 1993. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended July 27, 2010.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
Timeline
Timeline From CIPO dates
Sources & verification
Official CIPO records
Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.