Turbine blade tip squealer and rebuild method
CA 2523255 C · Owner: General Electric Company · Inventors: Lee, Ching-Pang
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A turbine blade (10) with a tip squealer (28) and method of rebuilding a turbine blade (10) for a gas turbine engine. The blade (10) is of the type including an airfoil (12) having first and second spaced-apart sidewalk (20 22) defining an interior void (30) and joined at a leading edge and a trailing edge (24 26). The first and second sidewalk extending from a root (27) disposed adjacent the dovetail (14) to a tip cap (36) for channeling combustion gases and a squealer tip (28) including at least one tip rib (38) extending outwardly from the tip cap (36). The method includes the steps of removing the squealer tip (28) including the at least one rib tip (38) from the tip cap (36) and adding …
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 13, 2005 and granted September 10, 2013. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended October 13, 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.