Method and connecting piece for assembling windmill blade sections
CA 2589255 C · Owner: Siemens Gamesa Renewable Energy A/S · Inventors: Stiesdal, Henrik
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Method and connecting piece for assembling an arm preferably a windmill arm, in sections Method and connecting piece (1) for assembling a first (2) and a second arm section (3) in extension of one another in order thus to form at least a part of an arm, preferably a windmill arm where two arm sections (2, 3) are connected to at least one connecting piece (1) for mounting between the two arm sections (2, 3). The connecting piece (1) is provided with a first flange (5) for attachment to the end of the first arm section (2) and a second flange (5) for attachment to the end of the second arm section (3) the first , and the second flange (5) being firmly interconnected. The first and 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
- Filed November 24, 2005 and granted July 15, 2014. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended November 24, 2025.
- Certificates of supplementary protection extend only drug patents, and it isn't classified as one.
- 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.