Axial play accommodating mated corecomplexes for multi-roll winding systems
CA 2536689 C · Owner: Niskanen, Heikki · Inventors: Niskanen, Heikki
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention relates to a method for winding a paper board or material web , on a winder of the two-drum type. In the method the winding core (10) ends , placed against each other are coupled to be on the same axis of rotation during winding by means of severing cuts (12U 12N) which are formed in the , ends (11A 11B) of the winding cores (10) and which deviate from a perpendicular cutting line. The invention also relates to a winder for a paper, board or material web for winding the web on a two-drum type winder which winder winds slit component webs. In the winder two winding cores (10) , placed against each other in end-to-end relationship have been coupled to each other for the …
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 August 24, 2004 and granted December 10, 2013. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended August 24, 2024.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by August 24, 2026.
- 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.