Apparatus for drying a fibre web
CA 1311118 C · Owner: Lehtinen, Jukka · Inventors: Rautakorpi, Paavo; Lehtinen, Jukka; Majaniemi, Pekka
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An apparatus for drying a fibre web (4) wherein the, web (4) is dried in at least two successive drying zones between a heated band (1b, 1d) and a cooled band (1a, 1c) moving substantially in parallel with and at equal speed as the web (4), the bands being endless and air-tight and having good thermal conductivity. In order to shorten the apparatus and to save energy it, comprises several drying zones positioned on top of each other in a direction transverse to the surface of the web (4), whereby the web (4) moves in opposite directions in drying zones positioned immediately on top of each other. Further, the endless band (1b 1c) po-, sitioned between two drying zones positioned on top of …
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 December 8, 1992. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended December 8, 2009.
- 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.