Auger-type tree cutting tool
CA 1281264 C · Owner: Tremblay, Rejean · Inventors: Tremblay, Rejean
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The present invention relates to a cutting head for use on a tree-felling vehicle. The cutting head comprises a tree-carrying frame with a cutting tool in the form of a rotor with helically extending cutting teeth. An arm for placement against a standing tree to be cut is pivotally mounted to the tree-carrying frame. A fluid ram is connected between the arm and the treecarrying frame to bring it in engagement with the tree to be cut so that the rotor progressively cuts the tree and the latter enters the tree-carrying frame.
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 March 12, 1991. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended March 12, 2008.
- 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.