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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.:

US 8790078 B1

PDFFull Text
Date of Patent:
Jul. 29, 2014

Filed:

Oct. 25, 2010

Abrasive rotor shaft ceramic coating

Applicants:

Paul H. Zajchowski, Enfield, CT (US);

Christopher W. Strock, Kennebunk, ME (US);

Matthew E. Bintz, West Hartford, CT (US);

Inventors:

Paul H. Zajchowski, Enfield, CT (US);

Christopher W. Strock, Kennebunk, ME (US);

Matthew E. Bintz, West Hartford, CT (US);

Assignee:

United Technologies Corporation, Hartford, CT (US);

Attorney:

Kinney & Lange, P.A.

Primary Examiner:

Edward Look

Assistant Examiner:

Christopher J Hargitt

Int. Cl.
CPC ...
F01D 5/20 (2006.01); F04D 29/08 (2006.01); F04D 29/18 (2006.01); F01D 11/12 (2006.01); C23C 28/00 (2006.01); C23C 4/10 (2006.01); C23C 30/00 (2006.01); C23C 4/02 (2006.01);
U.S. Cl.
CPC ...
C23C 28/3455 (2013.01); F01D 11/125 (2013.01); Y02T 50/672 (2013.01); C23C 28/3215 (2013.01); C23C 4/105 (2013.01); Y02T 50/67 (2013.01); C23C 30/00 (2013.01); C23C 4/02 (2013.01);
Abstract

An abrasive coating on a rotor shaft interacts with cantilevered vanes to form an abradable air seal in a turbine engine. The abrasive coating includes a metal bond coat, and an abrasive layer containing a plurality of abrasive grit particles in a ceramic matrix. The grit particles may be selected from cubic boron nitride (CBN), zirconia, alumina, silicon carbide, diamond and mixtures thereof.

Find Patent Forward Citations

Zajchowski, Paul. (2014). Abrasive rotor shaft ceramic coating (U.S. Patent No. 8790078). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/8790078

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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