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.

Date of Patent:
Sep. 13, 2022

Filed:

Dec. 20, 2019
Applicant:

United Technologies Corporation, Farmington, CT (US);

Inventors:

Michael R. Kracum, Manchester, CT (US);

David C. Jarmon, Hendersonville, NC (US);

Assignee:

Raytheon Technologies Corporation, Farmington, CT (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C04B 35/626 (2006.01); F23R 3/00 (2006.01); C04B 35/80 (2006.01); C04B 38/06 (2006.01); F02C 7/18 (2006.01);
U.S. Cl.
CPC ...
F23R 3/005 (2013.01); C04B 35/626 (2013.01); C04B 35/80 (2013.01); C04B 38/06 (2013.01); F02C 7/18 (2013.01); F05D 2230/21 (2013.01); F05D 2260/202 (2013.01); F23R 2900/00018 (2013.01); F23R 2900/03042 (2013.01);
Abstract

A method of making an ceramic article according to an exemplary embodiment of this disclosure, among other possible things includes arranging fiber plies into a preform, inserting one or more sacrificial springs to the preform, infiltrating the preform with a matrix material to form an article, and thermally degrading the one or more sacrificial springs to form cooling holes. A ceramic article and a gas turbine engine component are also disclosed.


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