Cooled blade or vane for a gas turbine
CA 2531754 C · Owner: Alstom Technology Ltd · Inventors: Schlechtriem, Stefan; Naik, Shailendra; Saxer-Felici, Helene
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention relates to a cooled blade for a gas turbine. Said blade comprises a part leading from a blade root and a blade shaft, said part having a leading edge and a trailing edge, in addition to a plurality of radially extending cooling channels in its interior that are fluidically connected in sequence. A first cooling channel is traversed along the leading edge and a second cooling channel is traversed along the trailing edge, from the blade root to the tip of the part, by a primary stream of coolant and the outlet of the first cooling channel is connected to the inlet of the second cooling channel via a first deviation zone, a third cooling channel that is situated …
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 June 30, 2004 and granted October 9, 2012. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended June 30, 2024.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by June 30, 2026.
- 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.