Gas turbine moving blade
CA 2255230 C · Owner: Mitsubishi Heavy Industries, Ltd. · Inventors: Yuri, Masanori
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Disclosed is a gas turbine moving blade assembly comprising a leading edge confronting a combustion gas flow and a trailing edge, a cooling passage defined in an interior of the leading edge for causing cooling air to flow from a proximal end portion of the blade to a tip end of the blade and a plurality of turbulators arranged in a direction transverse to a flow of the cooling air and slanted relative to the combustion gas flow. The plurality of turbulators includes long turbulators and short turbulators both the long turbulators and the short turbulators being provided on facing inner wall surfaces of the cooling passage and wherein the long turbulators and the short turbulators are …
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 4, 1998 and granted May 21, 2002. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended December 4, 2018.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by December 4, 2020.
- 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.