Arrangement for drying a fibre web
CA 2006318 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 for drying a fibre web (6) comprising, a press nip (PN) formed by two press rolls (1 2), pressed against each other; a drying fabric such as a felt (7) for receiving water from the web (6); and a hot band (4) for heating the web (6) at the nip (PN) the web (6) being passed through the nip (PN) formed by the press rolls (1, 2) together with the drying fabric (7) and the thin endless band (4) with good thermal conductivity. The arrangement further comprises means (1; 3; 5) for heating the band (4) outside the nip (PN). (Fig. 1)
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 December 21, 1989. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended December 21, 2009.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by December 21, 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.