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. 04, 2014
Filed:
Jun. 29, 2011
Applicants:
Christopher W. Strock, Kennebunk, ME (US);
Paul W. Baumann, Amesbury, MA (US);
Inventors:
Christopher W. Strock, Kennebunk, ME (US);
Paul W. Baumann, Amesbury, MA (US);
Assignee:
United Technologies Corporation, Hartford, CT (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F01D 11/00 (2006.01); C23C 28/00 (2006.01);
U.S. Cl.
CPC ...
C23C 28/3215 (2013.01); C23C 28/34 (2013.01); C23C 28/3455 (2013.01); C23C 28/347 (2013.01); C23C 28/36 (2013.01); C23C 28/322 (2013.01); C23C 28/324 (2013.01); C23C 28/345 (2013.01);
Abstract
An abrasive coating for a rotor shaft, the abrasive coating having a metal bond coat layer on the rotor shaft and an abrasive layer over the bond layer for contact with vanes during operation of the rotor shaft. The abrasive coating includes a matrix containing a low strength filler having an increased concentration radially outward from the bond layer to the outer surface of the abrasive layer. The matrix may be ceramic or metal.