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Expired Canadian patentCanada

Thermally compliant turbine shroud assembly

CA 2554121 C · Owner: Lee, Ching-Pang · Inventors: Lee, Ching-Pang; Nichols, Glenn Herbert; Ruthemeyer, Michael Anthony

CIPO record

Overview

Drawings and full text

Its claims, description and drawings are in the Canadian Patents Database.

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Abstract From the Canadian patent

A shroud assembly (33) is provided for a gas turbine engine having a temperature at a hot operating condition substantially greater than at a cold assembly condition thereof. The shroud assembly (33) includes at least one arcuate shroud segment (32) adapted to surround a row of rotating turbine blades. The shroud segment (32) has an arcuate axially extending mounting flange (52, 54). A shroud hanger (34) includes an arcuate axially-extending hook (42, 44). A dimension of one of the shroud segments (32) and the shroud hanger (34) are selected to produce a preselected dimensional relationship therebetween at the hot operating condition.

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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 July 27, 2006 and granted November 24, 2015. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended July 27, 2026.
  • 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.
FiledJuly 27, 2006
GrantedNovember 24, 2015
Term endedJuly 27, 2026
Patent numberCA 2554121 C
Classification (IPC)F01D5/32 +1 more

Timeline

Timeline From CIPO dates

2007200920112013201520172019202120232025Application filedJuly 27, 2006Patent grantedNov 24, 2015Term endedJuly 27, 2026

Sources & verification

Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.