Wind turbine diffuser
CA 2466897 A1 · Owner: Cita · Inventors: Ferracani, Pascal
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention concerns a diffuser for a wind turbine in particular a large-dimension wind turbine mounted on a mast (2) and comprising a wind-driven propeller (3) equipped with blades (5) as well as an alternator converting wind kinetic energy into electric power. The invention is characterized in that it consists of a circular element (7) enclosing the ends (9) of the blades (5) and consisting of a skin (14) made of a stretched textile membrane associated with a rigid internal and/or external framework (15) supporting the loads and enabling to stretch the membrane and forming it.
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 November 19, 2002. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended November 19, 2022.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by November 19, 2024.
- 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.