Method and apparatus of a twin-wire press
CA 2583579 C · Owner: Metso Paper Inc. · Inventors: Odmark, Leif
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The present invention relates to a method and a twin wire press, for dewatering of a fibre suspension. The dewatering tables in a twin-wire press are adapted for relatively slow dewatering and also for preparation of the formed fibre web. In a conventional dewatering space, too large loading of the dewatering tables results in high frictional forces and also high energy consumption. The step between relatively slow dewatering in the dewatering tables and very fast dewatering in the roll arrangement may give rise to problems in the first roll nip in the roll arrangement. Some aspects of the invention utilize a separate pressing force, which does not cause any frictional force, …
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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 October 19, 2005 and granted August 13, 2013. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended October 19, 2025.
- Certificates of supplementary protection extend only drug patents, and it isn't classified as one.
- 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.