The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 28, 2017
Filed:
Apr. 10, 2014
Alstom Technology Ltd, Baden, CH;
Stefan Weber, Wettingen, CH;
Gregoire Etienne Witz, Birmenstorf, CH;
Mathieu Esquerre, Neuenhof, CH;
Michael Stuer, Niederrohrdorf, CH;
Daniel Renusch, Baden, CH;
Hans-Peter Bossmann, Lauchringen, DE;
GENERAL ELECTRIC TECHNOLOGY GMBH, Baden, CH;
Abstract
Shroud device thermally protecting a gas turbine blade, having a ceramic layer and a metallic layer, the metallic layer being thermally protected by the ceramic layer, the ceramic layer being mechanically joined to the metallic layer by a fixation device having a plurality of protrusions extending from the metallic layer designed so as to engage with a plurality of cavities located in the ceramic layer, such that there exists a gap between the cavities and the protrusions at ambient temperature, the gap disappearing at high temperature operation of the gas turbine, the protrusions being then locked into the cavities.