Method and apparatus for handling logs to be debarked
CA 2294466 A1 · Owner: Sunds Defibrator Woodhandling Oy · Inventors: Aronen, Tero; Jonkka, Arvo; Liljeroos, Kari
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A method and an apparatus for handling logs (6) to be debarked so that the surface of the logs is torn or cut by means of blades (15) moving under the logs in relation to the logs, said blades projecting upwards from the bottom (13) carrying the logs. The direction of the mutual cutting motion between the logs and the blades deviates from the longitudinal direction of the logs. The blades (15) and the logs (6) are moved in relation to each other so that for part of the time the logs are out of contact with the blades higher up than , the cutting edges of the blades and for part of the time the logs are in contact with the cutting edges of the blades.
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 June 15, 1998. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended June 15, 2018.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by June 15, 2020.
- 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.