Method and apparatus for debarking logs
CA 2004516 A1 · Owner: Price, John Porter · Inventors: Price, John Porter; Woodham, Donald Van
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Apparatus for debarking logs comprising a generally horizontal rotary drum debarker having an inlet end, power means for continuously rotating the drum of the debarker, generally horizontal main conveyor means for conveying groups of tree length logs toward said drum said main, conveyor means having a discharge end drive means for continuously driving the main conveyor means, and, auxiliary feed means between the discharge end of said main conveyor means and the inlet end of said drum for assisting the movement of groups of logs fed by said main conveyor means into said inlet end of the drum.
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 December 4, 1989. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended December 4, 2009.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by December 4, 2011.
- 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.