Gas turbine moving blade platform
CA 2263012 C · Owner: Mitsubishi Heavy Industries, Ltd. · Inventors: Suenaga, Kiyoshi; Fukue, Ichiro; Akita, Eiji
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Provided is gas turbine moving blade platform wherein platform cooling structure is simplified with workability thereof being enhanced and cooling effect of platform side end portions is increased resulting in uniform cooling of entire platform. Cooling passages 2 3 are bored in platform 1 front portion communicating with cooling air passage 52 of moving blade 51 and opening at both platform 1 side end surfaces. Openings thereof are inserted with covers 2a 2b to be closed. Cooling passages 6, 4 are bored in platform 1 side end portions communicating with the cooling passages 2 3, respectively, and opening at platform 1 rear end surface. Plurality of cooling holes 5 are bored communicating …
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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 February 25, 1999 and granted September 17, 2002. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended February 25, 2019.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by February 25, 2021.
- 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.