Heat transfer roll and method
CA 1075893 A · Owner: Beloit Corporation · Inventors: Alheid, Robert J.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A hollow shell oylindrical heat transfer roll for either chilling or heating a web has a device therein for controlling a heat transfer liquid to flow as a uniform thin layer stream in heat transfer relation to the inner cylindrical surface of the roll substantially throughout the width of the area of the outer periphery of the roll over which the web travels. The direction of flow of the heat transfer stream is opposite to the direction of rotation of the roll.
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 April 22, 1980. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended April 22, 1997.
- 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.