A reel-up with double secondary units for reeling a running web in a paper machine
CA 2267253 C · Owner: Metso Paper Sweden Ab · Inventors: Karlsson, Tommy; Onnerlov, Lars-Erik; Karlsson, Roland
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A reel-up (1) in which paper is reeled up on reeling drums (4) to form paper reels (3), said reel-up (1) comprising two parallel stand members (6, 7); a surface winding means (8) in the form of a rotating surface winding drum (8) and/or a belt (9) to carry the web (2) and deliver it to one of said reeling drums (4) or a paper reel (3) formed or being formed thereon; and a secondary system consisting of first and second secondary units (19, 20) for alternate receipt of new reeling drums (4), each secondary unit (19, 20) comprising an outer first secondary member (21) and an inner second secondary member (22) each of , said secondary members (21, 22) comprising a linearly movable …
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 20, 1997 and granted February 6, 2001. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended October 20, 2017.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by October 20, 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.