Helical turbine for power and propulsion systems
CA 2222115 C · Owner: Northeastern University · Inventors: Gorlov, Alexander M.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A helical turbine assembly capable of providing high speed unidirectional rotation under a multidirectional ultra low-head fluid flow is disclosed. The assembly comprises an array of helical turbine units (304) arranged vertically or horizontally. Each turbine unit comprises a plurality of helical blades (302) having an airfoil profile. The modules may be mounted to rotatable shafts (322) supported by lightweight structures (316 324) anchored by gui , wires (318, 326) to the ground. The helical turbine (400) can also provide ship (406) propulsion by utilizing the power of ocean waves. In a further embodiment, a cylindrical distributor (206) is provided in the helical turbine to …
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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 29, 1996 and granted January 22, 2002. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended March 29, 2016.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 29, 2018.
- 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.