Combine harvester cleaning apparatus
CA 1283339 C · Owner: Jonckheere, Marc R.M. · Inventors: Hollevoet, Willy C.; Jonckheere, Marc R.M.; Carnewal, Jose A.C.L.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A combine harvester, having threshing and separating means for threshing and separating crop material and a cleaning apparatus disposed to receive threshed and separated grain from said threshing and separating means and being operable to clean unwanted residue from the threshed and separated grain is disclosed wherein the cleaning apparatus including at least a, pair of cleaning sieves arranged to be oscillated generally backand-forth for moving threshed and separated grain therealong while permitting the passage of cleaned grain therethrough and further, including a cleaning fan operable to direct a cleaning air blast to the cleaning sieves for urging unwanted residue in the threshed and …
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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
- Granted April 23, 1991. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended April 23, 2008.
- 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.