Cable suspended chipper system
CA 2126300 A1 · Owner: Hancocks, Larry R. K. · Inventors: Hancocks, Larry R. K.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A cable suspended chipper system includes a suspension cable for supporting a system which includes a pair of chipper drums mounted to rotate on spaced parallel axes. A tapered inlet passage directs the tree top toward the nip formed by the chipper drums as the system is lowered onto a tree top. Delimber rods are arranged around the periphery of the inlet to the tapered passage sever the limbs from the tree to facilitate chipping and feeding of the tree into the chipper drums. The drive motor or prime mover for the system is position on the side of the chipper drums opposite to that of the inlet passage from the chipper drums.
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 20, 1994. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended June 20, 2014.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by June 20, 2016.
- 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.