Method and apparatus for optimizing the operating parameters of a double-regulated water turbine
CA 2069161 C · Owner: Sulzer Escher Wyss Ag · Inventors: Erlach, Josef
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
In a water turbine having a distributor with adjustable guide vanes and a runner having adjustable runner blades optimization of the operating parameters is performed indirectly in that fluctuations in intensity of the generator output or the bearing oscillations of the water turbine are determined without taking account of the absolute values and are set or adjusted to a minimum.
Read the whole patent
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 May 21, 1992 and granted July 1, 1997. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended May 21, 2012.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by May 21, 2014.
- 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.