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. 19, 2016
Filed:
Mar. 04, 2010
Applicant:
Neil B. Ridgeway, South Windsor, CT (US);
Inventor:
Neil B. Ridgeway, South Windsor, CT (US);
Assignee:
United Technologies Corporation, Hartford, CT (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G11B 5/84 (2006.01); C23C 28/00 (2006.01); C23C 28/02 (2006.01); C23C 30/00 (2006.01);
U.S. Cl.
CPC ...
C23C 28/00 (2013.01); C23C 28/02 (2013.01); C23C 30/00 (2013.01); Y10T 428/31678 (2015.04);
Abstract
A coating process includes preheating a workpiece having an aluminum-containing layer through a temperature range in a reducing atmosphere having hydrogen to limit formation of thermally grown oxides on the surface of the workpiece. A source of oxygen is introduced to establish an oxidizing atmosphere at a temperature above the temperature range to form a desired type of thermally grown oxide on the surfaces of the workpiece. A coating is then deposited on the desired type of thermally grown oxide.