Grain distribution apparatus
CA 2128497 C · Owner: Schlagel, William A. · Inventors: Schlagel, William A.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A grain distribution apparatus is disclosed for connection to one or more grain sources and for providing distribution among a plurality of outlet ducts. In one embodiment a cylindrical housing contains a distribution spout rotatably movable among discharge positions at each receiving duct. A control wheel connected to the spout functions as a drive sprocket to rotate the spout to a selected discharge position. Inductively differentiated code clusters on a coded portion of the control wheel function in association with inductive sensors fixed adjacent to the control wheel to generate position indicating signals as the distribution spout and the attached control wheel are rotated among the …
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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 July 20, 1994 and granted February 13, 2001. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended July 20, 2014.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by July 20, 2016.
- 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.