Energy saving tree harvester
CA 1072418 A · Owner: Eaton Yale Ltd. · Inventors: Bestard, Thomas L.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An improved tree harvesting device of the swing boom type has an energy conserving drive mechanism for driving the swing boom. The energy conserving mechanism uses an energy storing means located between a prime mover and the swing boom; the energy storing means stores the energy dissipated by the swing boom when stopping.
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 February 26, 1980. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended February 26, 1997.
- 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.