Method and device in continuously operated unwinding of a paper reel
CA 2368935 A1 · Owner: Kojo, Teppo · Inventors: Lannes, Petteri; Verajankorva, Janne; Kojo, Teppo
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention relates to a method in continuous unwinding of a paper web in , which a paper reel (3) wound on a reeling core (2) or the like is unwound by rotating the same to guide the paper web (1) to a further processing stage. The method is characterized in that the shape of the outer surface of the unwound paper reel (3) is measured with the aim of detecting the defects possibly occurring in the paper reel (3). the invention also relates to an apparatus for applying the method.
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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
- Filed March 27, 2000. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended March 27, 2020.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 27, 2022.
- 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.