Method and means for the identification of a roll
CA 1185700 A · Owner: Oy Wartsila Ab · Inventors: Koutonen, Pauli; Alanco, Lars-Erik
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A method for the identification of rolls in particular big, paper rolls, by means of a code attached to or marked on the end surface of the roll. The code comprises several characters located side by side and is read by a combined optical beam transmitter-receiver, preferably a laser device scanning a, restricted angle in a plane (8). The scanning is adjusted to extend slightly over the end limit of the code at its both ends and the scanning plane is turned until at least one scanning over the entire code (4) is obtained.
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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 April 16, 1985. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended April 16, 2002.
- 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.