Improved cooling stationary turbine blade
CA 2510669 C · Owner: Guimbard, Jean-Michel · Inventors: Pabion, Philippe; Guimbard, Jean-Michel; Schwartz, Eric
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
In a turbomachine stator vane having a leading edge (12A) a trailing edge (12B), and pressure side (12C) and suction side (12D) faces and including a perforated open liner (18) defining an annular cavity (20) between an outside wall of the liner and an inside wall of the vane an air admission opening for feeding cooling air to the inside of the liner and an air exhaust opening for exhausting a fraction of this cooling air out from the vane the liner being secured to the vane at one end and being free at another end to slide along an inside edge of the vane under the effects of relative thermal expansion between the liner and the inside wall of the vane provision is made for the open liner …
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 28, 2005 and granted April 10, 2012. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended June 28, 2025.
- Certificates of supplementary protection extend only drug patents, and it isn't classified as one.
- 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.