Labyrinth gasket device for gas turbine engine
CA 2483043 C · Owner: Snecma · Inventors: Coulon, Sylvie; Bes, Martine; Roussin, Delphine
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
This invention refers to a labyrinth seal for a gas turbine engine incorporating from upstream to downstream ends a high pressure compressor with a rotor (2) a diffuser (6) and a fixed wall element (10)_forming at least one part of the internal envelope of the combustion chamber (8) said seal (20) comprising a stator part (22) mounted on the wall element by virtue of an attaching part (24) with flanges (25 and 26) and supporting an annular wearing part (23) said wearing part working jointly with a rotor element (28) provided with at least one circumferential tooth (28A) integral with rotor (2) of the compressor to form the labyrinth seal. It is characterized by the fact that at least one of …
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 October 21, 2004 and granted August 21, 2012. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended October 21, 2024.
- 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.