Hydraulic wheel
CA 2506553 A1 · Owner: Fonfrede, Christophe · Inventors: Fonfrede, Christophe; Fonfrede, Michel; Fonfrede, Stephane
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention concerns a turbine comprising: a rotary mobile part called rotor (1) consisting of a set of blades (2) variable in number the assembly rotating about a horizontal axis (6) one or more stationary parts (4), acting as barrier for retaining the water level; a water intake channel (15) and a water discharge channel (16). The invention is characterized in that the shape of the cylindrical ring of the mobile part (1) which enables, in the volume left free by its movement provision of the water retaining element (4) wherein are installed the mechanical elements constituting the speed-increasing and brake units. Such a design enables kinetic energy and water-level potential energy to …
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 February 19, 2003. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended February 19, 2023.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by February 19, 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.