Felling head with swinging cutter bar
CA 1304273 C · Owner: Mercier, Gilles · Inventors: Gelinas, Rene; Mercier, Gilles; Mercier, Jacques
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A tree felling head has a frame with two laterally spacedapart support means at the bottom of the frame. A cutting unit is pivotally mounted at one end on one of the support means while the other end of the cutting unit is supported on the other support means. The cutting unit carries a rotatable cutting bar. means pivot the cutting unit while its other end is guided on, the other support means and while its cutting bar is rotated, to move the cutting bar against a tree and to cut through it. The cutting unit also has an accumulating plate located immediately behind the cutting bar for accumulating cut trees thereon.
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 June 30, 1992. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended June 30, 2009.
- 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.