Arrangement in an apparatus for drying a fiber web
CA 2269628 A1 · Owner: Rautakorpi, Paavo · Inventors: Rautakorpi, Paavo
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An arrangement in an apparatus for drying a fiber web in which apparatus the , fiber web (5) is dried between two tight bands (1 2) moving in the same , direction and turning around turning rolls (6a 6b, 7a, 7b). The first band , (1) is heated by means of a pressure chamber (9) and the second band (2) is cooled by means of a water chamber (10). The fiber web (5) is led together with at least one felt or wire (3, 4) through a drying zone formed by the bands (1, 2) in such a way that the fiber web is in contact with the surface of the first band (1) and the felt or wire (3 4) is between the fiber web (5) , and the second band (2). The arrangement comprises means for supporting the wire …
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
- Filed October 24, 1997. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended October 24, 2017.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by October 24, 2019.
- 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.