Cooling device for the fixed ring of a gas turbine
CA 2504177 C · Owner: Lefebvre, Pascal · Inventors: Lefebvre, Pascal; Amiot, Denis
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Cooling device for the fixed ring surrounding a hot gas passage (6) in a gas turbine said ring being made up of multiple ring sections (10) that are affixed by fixation systems up and down stream on multiple spacer sections (12) forming a spacer support surrounding said ring in such a way as to define it with at least one annular impact cavity (36) to which at least one air supply orifice (38) leads each ring section (10) having walls with multiple air-output holes opening onto the impact cavity (36) and leading to the hot gas passage (6) the device also includes the means (48 54) to channel the air coming from leaks at the fixation system level and to direct it to at least one of the axial …
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 April 22, 2005 and granted November 20, 2012. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended April 22, 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.