Control system for a mobile material distribution device
CA 2228272 C · Owner: Dickey-John Corporation · Inventors: Wood, John E.; Morton, Joel T.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A control system is provided for efficiently regulating the discharge of material from a mobile material distribution device having a product tank or bin, a boom with at least one boom section a plurality, of outlet ducts (e. g. nozzles and/or distribution ports) associated with each boom section, shut-off valves for selectively enabling each boom section and a, selectively-movable control valve for regulating the flow of material to the boom sections. The control system includes a boom sensing input for monitoring whether the shut-off valves are open or closed (i.e. whether the associated boom sections are enabled or disabled) and a, processing system for maintaining a substantially stable …
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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 January 27, 1998 and granted July 2, 2002. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended January 27, 2018.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by January 27, 2020.
- 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.