Method and apparatus for checking coins
CA 1330229 C · Owner: Walter Hanke Mechanische Werkstatten Gmbh & Co. Kg · Inventors: Seiler, Siegfried
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A method and an apparatus for checking coins are proposed in which thecoin is guided in a coin channel the coin edge is irradiated and the, reflected radiation detected. By means of a slit or the like the coin, edge is irradiated and scanned in strip-like manner at right angles to the coin channel in such a way that the reflection differences occurring when there are grooves on the coin edge are supplied in the form of an a.c. signal.
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 June 14, 1994. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended June 14, 2011.
- 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.