Coater for coating material webs
CA 1279186 C · Owner: Knop, Reinhard · Inventors: Knop, Reinhard
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A coater for coating a web of material in particular a paper web guided along a backing roller includes a chamber for, receiving the coating material a doctor blade located where the, web leaves the chamber seen in the direction of travel of the material web, an adjustable overflow plate located at the front end of the chamber and sealing members arranged in the edge regions of the backing roller, covering the edges of the material web. A recess extends in each edge scraper in the direction of travel of the web from in front of the overflow plate to immediately in front of the doctor blade. A channel in each edge scraper is connected to a compressed air supply opening in the region of 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
- Granted January 22, 1991. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended January 22, 2008.
- 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.