Felt comprising a loop seam for use in the press section of papermaking machines and a method of manufacturing such felts
CA 1237312 A · Owner: Nordiskafilt Ab · Inventors: Nilsson, Sven-Bertil; Lilja, Roland E.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A felt for use in the press section of papermaking machines. The felt consists of a woven base preferably of two layers of threads extending in the machine direction of the felt and cross-machine direction threads interconnect the machine-direction threads the woven base having a batt needled onto at least one of its faces. The felt is manufactured to be installed in flat form but after its installation in the machine its ends are joined together to form an endless cloth with the aid of a seam known per se. A flap of the batt or batts is arranged to cover the seam area. The invention also concerns a method of manufacturing and installing the felt in the press section of papermaking machines.
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 May 31, 1988. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended May 31, 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.