Roll for use in calenders and method of converting
CA 1285805 C · Owner: Sonnen, Rudolf · Inventors: Sonnen, Rudolf
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A roll for use in calenders and like machines has a non-rotatable shaft which is surrounded by a radially movable rotary shell whose end portions carry sleeves. When the shell is to float relative to the shaft, the sleeves have freedom of limited movement with reference to the shaft in the radial direction of the shell in parallelism with a plane which includes the axis of the shell and the nip which the shell defines with the shell of a neighboring roll. Arcuate inserts are introduced between the sleeves and the adjacent portions of the external surface of the shaft to hold the shell against floating so that the movements of the shell are then confined to rotation about a fixed axis.
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.