Deflection compensating refiner plate segment and method
CA 2366883 A1 · Owner: J & L Fiber Services, Inc. · Inventors: Johansson, Ola M.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A segment for a rotary disk refiner that has a refining surface offset to compensate for deflection of the segment that occurs during refiner operation. In one, preferred embodiment, the refining surface overlying each segment overhang is offset, to compensate for deflection that occurs in the region of the overhang during refiner, operation. Other regions of the refining surface can also be offset to compensate for, deflection. In another preferred embodiment a mount that extends outwardly , from the backside of a segment has a hollow therein to reduce segment mass to reduce refining, surface deflection. In a method of making a deflection compensating segment the, location and …
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 January 7, 2002. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended January 7, 2022.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by January 7, 2024.
- 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.