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:
Dec. 14, 2010
Filed:
Oct. 07, 2008
Applicants:
Abdus Suttar Khan, Ennetbaden, CH;
Ian William Boston, Ennetbaden, CH;
James Alexander Hearley, Brugg-Lauffohr, CH;
Inventors:
Abdus Suttar Khan, Ennetbaden, CH;
Ian William Boston, Ennetbaden, CH;
James Alexander Hearley, Brugg-Lauffohr, CH;
Assignee:
Alstom Technology Ltd, Baden, CH;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C23C 4/00 (2006.01); C23C 4/04 (2006.01); C23C 4/06 (2006.01); C23C 4/10 (2006.01); C25D 5/10 (2006.01); B05D 1/36 (2006.01);
U.S. Cl.
CPC ...
Abstract
It is disclosed a method of depositing a seal coating and a seal system comprising at least two layers on the surface of an article. The upper or surface layer has a higher chromium activity than a bottom layer, to reduce a diffusion of cobalt and the formation of cobalt oxide is reduced. The coating of invention may be heat-treated to reduce or optimize the formation of cobalt oxide to sustain the wear property.