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:
Nov. 25, 2003
Filed:
Sep. 27, 2002
Applicant:
Inventors:
Nigel Brian Thomas Langley, Danvers, MA (US);
Keng Nam Chen, Singapore, SG;
Genfa Hu, Singapore, SG;
Kwok Heng Yow, Singapore, SG;
Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B05D 3/02 ; B05D 3/04 ; B05D 1/36 ; C25D 5/02 ; C25D 5/50 ;
U.S. Cl.
CPC ...
B05D 3/02 ; B05D 3/04 ; B05D 1/36 ; C25D 5/02 ; C25D 5/50 ;
Abstract
A gas turbine blade which has previously been in service is protected by cleaning the gas turbine blade, and then first depositing a platinum first layer on the airfoil and the platform of the gas turbine blade. Thereafter, a platinum second layer is deposited over the platform but not the airfoil. A platinum-aluminide protective coating is formed by depositing an aluminum-containing layer overlying both the platform and the airfoil and interdiffusing the platinum and the aluminum.