Pressure roll for use in calenders and the like
CA 1285806 C · Owner: Kleinewefers Gmbh · Inventors: Pav, Josef
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A pressure roll for use in calenders has a fixed carrier for a hollow cylindrical shell which is rotatable about and is movable radially of the carrier. The position of the shell relative to the carrier and the positions of longitudinal increments of the shell relative to each other are regulated by one or more supporting devices each of which has a row of neighboring hydrostatic bearing elements having convex surfaces with pockets adjacent the internal surface of the shell and being urged against the shell by discrete cylinder and piston units, one for each bearing element Each bearing element has an elongated elliptical or rectangular outline and has a width in the circumferential …
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 July 9, 1991. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended July 9, 2008.
- 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.