Method and apparatus for coating a web
CA 1235028 A · Owner: Valmet Paper Machinery Inc. · Inventors: Meinander, Paul O.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A method for two-sided coating of a moving web e.g. a paper, web, and smoothing said coating. The direction of movement of the web is substantially upwards. The web is fed through a coating chamber and the coating is immediately smoothed in the top part of the chamber. The top of the chamber is formed by a flexible blade and a rod mounted rotatable on bearings, the blade and the rod forming a nip 7 where the coating is smoothed while the web passes through it. The nip is mounted at a short distance from the coating channel outlets.
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 April 12, 1988. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended April 12, 2005.
- 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.