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:
Oct. 19, 2004
Filed:
Mar. 23, 1999
Applicant:
Inventors:
Raymond P. Ristau, Tolland, CT (US);
Sudhangshu Bose, Manchester, CT (US);
Alan D. Cetel, West Hartford, CT (US);
Assignee:
United Technologies Corporation, Hartford, CT (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B08B 3/04 ; B08B 3/10 ; B08B 3/12 ; B05D 3/12 ; C23G 5/00 ;
U.S. Cl.
CPC ...
B08B 3/04 ; B08B 3/10 ; B08B 3/12 ; B05D 3/12 ; C23G 5/00 ;
Abstract
A method of surface cleaning and controlled oxidation of superalloys is described. The method provides a thin homogeneous layer of relatively pure alpha alumina which is suited to receive and adhere to a subsequent vapor deposited coating.