Coin validator
CA 1304782 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 of a static capacitance system for discerning the thickness and/or pattern of a coin in a noncontact manner. A pair of electrode assemblies including a first and a second sensor electrodes and a first and a second guard ring electrodes are disposed on the corresponding sides of a coin path. The first and the second guard rills electrodes prevent the dispersion of electric lines of force generated by the first and the second sensor electrodes. The first and the second sensor electrodes are impressed with resonating output signals from resonators. Under such condition, when the coin passes through the coin path between these electrodes. the entire inter-electrode capacitance …
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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 7, 1992. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended July 7, 2009.
- 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.