A power generation system
CA 2245049 C · Owner: Tan, Toshimi · Inventors: Kaneko, Ryoichi; Suwa, Masateru; Kuriyama, Mitsuo
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A steam turbine that includes a rotor provided with a mono-block rotor shaft. Multi-stage blades are fixed to the rotor shaft from a high pressure side. The steam inlet temperature of the first stage blades is not less than 530°C to a low pressure side. Final stage blades are provided at the low pressure side having a length not less than 40 inches for a shaft rotated at 3000 rpm or a length not less than 33.5 inches for a shaft rotating at 3600 rpm. The final stage blades are illustratively made from a Ti-based alloy.
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 1, 1990 and granted October 9, 2001. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended February 1, 2010.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by February 1, 2012.
- 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.