Paper surface treating device
CA 1107492 A · Owner: Sca Development Aktiebolag · Inventors: Wappling, Rune A.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A device is provided for applying a fluid surface treatment agent to a paper web that includes a container for receiving the fluid surface treatment agent to be applied. The container includes a gap which is mounted for contact with the paper web for transferring the fluid from the container to the paper web. A rotary brush is positioned opposite the gap and on the other side of the paper web, and includes fluffy surfaces for applying pressure to the paper web to press the paper web into contact with the fluid applying gap. The position and pressure of the brush are adjustable and a, casing is provided to at least partially surround the brush to produce a fan effect on the paper web as the …
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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
- Granted August 25, 1981. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended August 25, 1998.
- 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.