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:
Apr. 17, 2012
Filed:
Apr. 08, 2009
Simone Hövel, Ennetbaden, CH;
Alexander Stankowski, Siggenthal-Station, CH;
Günter Ambrosy, Baden-Dättwil, CH;
Matthias Hoebel, Windisch, CH;
Alexander Schnell, Baden, CH;
Hans Bissig, Wohlen, CH;
Rainer Kurtz, Baden-Rütihof, CH;
Simone Hövel, Ennetbaden, CH;
Alexander Stankowski, Siggenthal-Station, CH;
Günter Ambrosy, Baden-Dättwil, CH;
Matthias Hoebel, Windisch, CH;
Alexander Schnell, Baden, CH;
Hans Bissig, Wohlen, CH;
Rainer Kurtz, Baden-Rütihof, CH;
Alstom Technology Ltd, Baden, CH;
Abstract
A gas turbine engine hot gas component repair method for defects that do not extend through the thickness of the component is provided. First defects are removed by machining a cavity in the surface of a component. Coupons, fittable within the cavities are manufactured, are for example coated with brazing medium on an inner surface and then joined to the component by joining means such as laser metal forming. The joint holds the coupon during later heat treatment, thereby eliminating a need for holding aids. Before heat treatment, a further brazing medium can be applied to the surface of the coupon overlapping onto the component. A single heat treatment, brazing the coupon to the component and, brazing the brazing medium to the outer surface of the coupon can, then be used to complete the repair.