Cleaning method
CA 2489642 A1 · Owner: Voith Paper Patent Gmbh · Inventors: Straub, Karlheinz
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A method for controlling the cleaning of an endlessly circulating belt (1) in a machine for the production and/or processing of a paper cardboard, tissue , or another fibre-material strip by means of a cleaning device (2) which applies cleaning fluid to the belt (1) and by means of a traversing unit (3) which is coupled thereto and which displaces the cleaning device (2) across the direction (11) in which the belt moves. Cleaning is improved in such a way that the traversing speed is controlled according to the traversing direction and/or the amount of cleaning fluid applied to the belt (1) according to the traversing direction.
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 July 18, 2003. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended July 18, 2023.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by July 18, 2025.
- 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.