A roll press and a roll body for a press roll
CA 2589534 C · Owner: Metso Paper Inc. · Inventors: Lundberg, Jorgen
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A roll body for a press roll (12, 13) for dewatering pulp comprising a cen¬ , tral drum (8, 16, 17) and several frame rings (7. 7.1 7.2, 7.3, 4..4, 14, 15), to which at least one perforated roll plate (18 19) is intended to be , attached, the frame rings (7. 7.1 7.2, 7.3, 4..4, 14, 15) being distributed along the length of the central drum (8 16, 17), where each frame ring (7. , 7.1 7.2, 7.3, 4..4, 14, 15) is attached directly to the central drum (8 16, 17), and is provided with at least one recess (9.1 9.2, 9.3), whereby a , passage in the axial direction is provided for the transport of liquid to the ends of the roll body, and a roll press comprising at least one press roll (12, …
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 November 17, 2005 and granted January 8, 2013. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended November 17, 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.