Spiral water turbine
CA 2412583 A1 · Owner: Pohanka, Mikulas · Inventors: Pohanka, Mikulas
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The contemporary Water Turbine consists of its body and its shaft. This body forms the wheel of the Turbine. Compressed water enters into the body of the Turbine from its circumference, through its fixed distributor. I propose a Water, Turbine which consists of its wheel and its shaft; this shaft is hollow. In the wheel, are made two curved canals, which are horizontal. Compressed water enters into the, hollow shaft, and from it into the curved canals which are curved such that , the water in them slows its speed (to the left) to the same speed as the tangential speed of the, wheel (to the right). Consequently the speed of the outgoing water from these canals, is zero. The theoretical …
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 December 16, 2002. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended December 16, 2022.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by December 16, 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.