Turbine nozzle segment and method of repairing same
CA 2529337 C · Owner: Caddell, James W. Jr. · Inventors: Miller, Matthew N.; Norton, Brian A.; Caldwell, James M.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A method for repairing a stationary turbine nozzle segment (10) having at least one vane disposed between outer and inner structural bands includes providing an engine- run turbine nozzle segment (10) having at least one vane disposed between outer and inner bands wherein the outer band (14) and the vanes (12) are previously replaced components of the segment and the inner band is an original component of the segment (10); separating the inner band from the nozzle segment (10); repairing damage in the outer band (14) and/or the vane; and joining the outer band (14) and the vane to a newly manufactured replacement inner band segment (30). The replacement inner band segment (30) includes: a …
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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 December 8, 2005 and granted May 13, 2014. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended December 8, 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.