Dryer section
CA 2009966 C · Owner: Kugler, Georg · Inventors: Kugler, Georg; Kotitschke, Gerhard
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Improved runnability is obtained in the dryer section of a papermaking machine while high drying efficiency is maintained by wrapping a small portion of the pick-up roll from one dryer group to the next with the web support belt from the first dryer group so that, the web is safely transferred. In addition a, configuration of cylinders in the drying section is described which ensures the web is held against the support belt when it travels from one of the drying cylinders to the following suction roll. In this configuration, the distance between the periphery of the suction roll and the periphery of the delivering cylinder is smaller than the distance between the periphery of the suction …
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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 February 13, 1990 and granted May 21, 1996. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended February 13, 2010.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by February 13, 2012.
- 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.