Rotary agricultural tool
CA 2066431 A1 · Owner: Kverneland Underhaug As · Inventors: Roynberg, Erling
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
There is disclosed a rotary agricultural tool which may be incorporated in a number of different types of agricultural equipment such as in a device for chopping-up bulk material. The rotary tool comprises an elongate cutter body (170) mounted in a frame for rotation about a substantially horizontal axis and carrying on its outer periphery pivotally mounted cutter blades (169) a, housing (115, 160) extending partly around the cutter body (170) and, feed rollers (120) for feeding the bulk material to the cutter body (170). The baldes (169) are arranged in pairs of blades (171) and each blade is mounted in position on the cutter body in such a way that: the blade is pivotable relative to …
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 September 12, 1990. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended September 12, 2010.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by September 12, 2012.
- 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.