Wind turbine, lightning connection means, method and use hereof
CA 2543515 C · Owner: Vestas Wind Systems A/S · Inventors: Molbech, Allan Laursen
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A wind turbine comprises a nacelle and a tower comprising stationary lightning protection means and a rotor having at least one wind turbine blade each of which has , rotating lightning protection means. The two lightning protection means include contact , surfaces connected by connection means which include contact means. There is further , provided an electric conductor establishing a dedicated connection between the contact , means and force transferring means for the contact means establishing a continuous , connection between the contact means and the contact surfaces of the stationary and , rotating lightning protection means.
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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 November 20, 2003 and granted April 3, 2012. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended November 20, 2023.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by November 20, 2025.
- 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.