Extended couch nip on cylinder former
CA 2605375 C · Owner: Zilker, Gregory D. · Inventors: Zilker, Gregory D.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An apparatus for use in a cylinder machine having a shoe (28) with a concavelyshaped pressure surface that forms a substantially mating relationship with a cylinder mould (14) or sieve. The concavely-shaped pressure surface of the shoe increases the amount of wrap that a making fabric (16) has on a cylinder mould (14) or sieve thereby increasing the amount of friction generated between the making fabric (16) and the cylinder mould (14) or sieve. The increased friction results in an improved torque transfer between the making fabric and the cylinder mould or sieve.
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
- Filed April 13, 2006 and granted January 20, 2015. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended April 13, 2026.
- Certificates of supplementary protection extend only drug patents, and it isn't classified as one.
- 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.