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:
Jul. 31, 2001
Filed:
Dec. 15, 1998
Applicant:
Inventors:
Thomas Joseph Cartier, Scotia, NY (US);
D. Sangeeta, Niskayuna, NY (US);
Assignee:
General Electric Company, Schenectady, NY (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C23F 1/00 ;
U.S. Cl.
CPC ...
C23F 1/00 ;
Abstract
A method of removing a coating from the surface of a hole in a metal-based substrate is described. The coating is scored on or near the surface of the hole. The substrate is then treated with a coating-removal solution under conditions suitable for removing the coating without damaging the substrate or any intervening bond layer. The coating is often a zirconia-based thermal barrier coating. In such a case, a caustic solution is used to remove the coating within an autoclave. The substrate can be a component of a turbine engine.