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. 08, 2014
Filed:
Oct. 25, 2010
Applicants:
Changsheng Guo, South Windsor, CT (US);
Christopher W. Strock, Kennebunk, ME (US);
Thomas W. Stowe, Hebron, CT (US);
Paul W. Baumann, Amesbury, MA (US);
Inventors:
Changsheng Guo, South Windsor, CT (US);
Christopher W. Strock, Kennebunk, ME (US);
Thomas W. Stowe, Hebron, CT (US);
Paul W. Baumann, Amesbury, MA (US);
Assignee:
United Technologies Corporation, Hartford, CT (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F01D 5/20 (2006.01); F01D 11/08 (2006.01); F04D 29/18 (2006.01);
U.S. Cl.
CPC ...
Abstract
An abrasive coating is formed on a rotor shaft that rotates with respect to cantilevered vanes. The coating is formed by thermal spray techniques and comprises a ceramic layer on a metal bond coat. The coating surface is roughened by crush grinding or by grit blasting to increase the abradability of the surface.