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 6582834 B1

PDF
Full Text
Expired
Date of Patent:
Jun. 24, 2003

Filed:

Jun. 12, 2001
Applicant:
Inventors:

Bangalore Aswatha Nagaraj, West Chester, OH (US);

Ching-Pang Lee, Cincinnati, OH (US);

William Randolph Stowell, Rising Sun, IN (US);

Aaron Dennis Gastrich, Cincinnati, OH (US);

Assignee:

General Electric Company, Schenectady, NY (US);

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B32B 1/504 ; F03B 3/12 ; C23C 1/606 ;
U.S. Cl.
CPC ...
B32B 1/504 ; F03B 3/12 ; C23C 1/606 ;
Abstract

An anti-stick coating that inhibits the adhesion of contaminants that form deposits on the internal cooling passages of gas turbine engine components. The anti-stick coating is formed as an outer coating of the internal cooling passages, and preferably overlies an environmental coating such as a diffusion aluminide coating formed on the passage surfaces. The outer coating has a thickness of not greater than three micrometers, and is resistant to adhesion by dirt contaminants as a result of comprising at least one layer of tantala, titania, hafnia, niobium oxide, yttria, silica and/or alumina. The outer coating is preferably deposited directly on the environmental coating by chemical vapor deposition.


Find Patent Forward Citations

Nagaraj, Bangalore. (2003). Anti-stick coating for internal passages of turbine components (U.S. Patent No. 6582834). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/6582834

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