Method of removing accumulated twine from a shaft of a rotary bale shredder and a rotary bale shredder
CA 2202014 C · Owner: Kjenner, Kenneth David · Inventors: Kjenner, Kenneth David
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A method of removing accumulated twine from a rotary shaft of a rotary bale shredder. Firstly providing a rotary, bale shredder having a bale receiving cradle with a rotary shaft positioned in close proximity to the bale receiving cradle. A plurality of cutting blades are mounted on the rotary shaft which shred a bale positioned on the bale receiving cradle. Secondly, providing a track along the exterior surface between the first end and the second end of the rotary shaft. Thirdly, providing a cutting knife that can engage the track. Fourthly, securing a line to the cutting knife and exerting a force upon the line to draw the cutting knife along the track to sever any twine that is wrapped …
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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 April 7, 1997 and granted March 20, 2001. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended April 7, 2017.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by April 7, 2019.
- 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.