Apparatus for coating a web with coating mix
CA 1312462 C · Owner: Eskelinen, Juhani · Inventors: Eskelinen, Juhani; Heikkinen, Jukka; Karna, Anssi
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
This invention describes a short-dwell coater for coating a web with coating mix against a rotating backing roll. The coater comprises a support structure, a feeder means adapted to the front lip for feeding the coating mix into an application zone formed between the backing roll and the support structure and, an actual doctor blade, adapted into the support structure to press against the web, with which blade the excess coating mix passing over from the application zone can be removed. According to the invention, a separate predoctoring blade is adapted at a short distance before the actual doctor blade in the machine direction of the web for smoothing out disturbances in the coating mix …
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 12, 1993. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended January 12, 2010.
- 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.