Turbine valve controller
CA 1293311 C · Owner: Kabushiki Kaisha Toshiba · Inventors: Tone, Youichi
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A turbine control device which compensates for non-linearity of the degree-of-opening/flow-rate characteristic of a regulating valve. The device has a turbine rotation speed detector, a calculator to determine a desired flow rate based on a predetermined rotation speed and the detected speed a, valve for controlling the flow rate with a variable degree of opening, a flow rate detector a memory, unit for memorizing combinations of the detected flow rate and respective degrees of opening of the valve a converter for converting the desired flow rate into a valve opening command signal based on the memorized combinations of the flow rate and respective degrees of opening of the valve, and a …
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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 December 17, 1991. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended December 17, 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.