Device for a disc refiner
CA 1248760 A · Owner: Thune-Eureka A/S · Inventors: Taraldrud, Ola
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A disc refiner with two annular grinding bodies provided in a box and facing each other having a rotor body, in the box, said rotor body being designed with two annular grinding bodies facing one each of the two annular grinding bodies provided in the box, so that two grinding zones are formed, one on either axial side of the rotor body where the, ground material is processed while passing radially outwards said rotor body being designed with a cavity with an axial inlet for the ground material and with radially converging essentially V-shaped walls with apertures on to the grinding zones for the introduction of the ground material to said grinding zones from the cavity. In the cavity an …
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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 January 17, 1989. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended January 17, 2006.
- 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.