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Expired Canadian patentCanada

Assembly comprising a water turbine and a generator, the rotor of which is direct-connected to each one of the blades of the turbine

CA 2560119 C · Owner: Segergren, Erik · Inventors: Bernhoff, Hans; Segergren, Erik; Leijon, Mats

CIPO record

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Abstract From the Canadian patent

The invention relates to an assembly having a water turbine (2) and a rotary electrical generator (1), the rotor (4) of which is connected to the turbine (2). The turbine (2) has at least three axially directed blades (5). According to the invention, each blade (5) is individually directly connected to the rotor (4) of the generator (1). The invention also relates to a use of the invented assembly for the generation of current from underwater currents.

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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 March 10, 2005 and granted April 23, 2013. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended March 10, 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.
FiledMarch 10, 2005
GrantedApril 23, 2013
Term endedMarch 10, 2025
Patent numberCA 2560119 C
Classification (IPC)F03B3/12 +2 more

Timeline

Timeline From CIPO dates

2006200820102012201420162018202020222024Application filedMarch 10, 2005Patent grantedApril 23, 2013Term endedMarch 10, 2025

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Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.