Press for removing water from a fibre web
CA 1095774 A · Owner: Valkama, Paavo J. · Inventors: Valkama, Paavo J.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention provides a press for removing water from a fibre web which is continuously attached to a felt or wire fabric, the press comprising a pair of nip rolls defining a pressing zone through which the web attached to said fabric and another felt or wire fabric are passed in such manner that the web is interposed between both said fabrics in the said nip rolls one of said nip rolls lying against the fabric carrying the web being in the form of a smooth press roll and the other of said, nip rolls having a recessed surface a line joining the centres, of the nip rolls being inclined with respect to the direction the web passes through the nip rolls so that the fabric and attached web …
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 February 17, 1981. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended February 17, 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.