Grain dryer system
CA 1267281 C · Owner: Parkes, Donald H. · Inventors: Parkes, Donald H.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Abstract of the Invention A computer controlled grain dryer system includes a grain drying bin, a solenoid valved burner a blower, and an, arrangement of grain unloading augers. An air temperature sensor for the drying airflow provides a temperature signal. A grain moisture sampling system receives a grain sample from the grain unloaders and conveys the sample to a capacitive sample cell. A grain moisture meter senses grain moisture content as a function of the dielectric constant of the sample in the cell. A digital computer is interfaced with the temperature sensors, the moisture meter the burner, valves, the blower, and the auger motors and is programmed to automatically control 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
- Granted April 3, 1990. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended April 3, 2007.
- 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.