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:
Aug. 13, 2013
Filed:
Jul. 18, 2011
Thomas Demichael, Stafford Springs, CT (US);
Richard Gerst, Bristol, CT (US);
Brian S. Tryon, Glastonbury, CT (US);
David A. Rutz, Glastonbury, CT (US);
Billie W. Bunting, Colchester, CT (US);
Thomas DeMichael, Stafford Springs, CT (US);
Richard Gerst, Bristol, CT (US);
Brian S. Tryon, Glastonbury, CT (US);
David A. Rutz, Glastonbury, CT (US);
Billie W. Bunting, Colchester, CT (US);
United Technologies Corporation, Hartford, CT (US);
Abstract
A method of repairing a damaged coated vane from a turbine module without removing the vane from the module is taught. The method includes locally removing the coating in the vicinity of the damage as well as any underlying damage in the superalloy substrate. A diffusible coating precursor is then applied to the damage site. A heat treating fixture is then mounted on the vane and repair site is heated to up to 2000° F. in an inert environment to interdiffuse the coating precursor and the substrate. After the diffusion anneal, the vane is cleaned and the module is returned to service.