Round bale twine remover and un-roller
CA 2273306 A1 · Owner: Schwitzer, Allen · Inventors: Schwitzer, Allen
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The disclosed invention provides an apparatus for removing the twine from a large round bale comprising a drum adapted to be rotatably mounted on an implement such that the drum may be moved into contact with the surface of the bale with the axis of the drum in general alignment with the axis of the bale. Teeth extending from the surface of the drum break and grab the twine and wrap it around the surface of the drum. Stripper teeth strip material other than twine from the breaking and grabbing teeth. A plurality of pivoting blades may be provided to cut the twine from the surface of the drum. Once the twine is removed the, rotating teeth may be used to un-roll the bale.
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 May 28, 1999. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended May 28, 2019.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by May 28, 2021.
- 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.