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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 11434176 B1

PDFFull Text
Date of Patent:
Sep. 06, 2022

Filed:

Aug. 24, 2018

Fugitive fiber commingling to provide loft in ceramic fiber tows

Applicant:

Rolls-royce High Temperature Composites Inc., Cypress, CA (US);

Inventor:

Stephen Harris, Long Beach, CA (US);

Assignee:

ROLLS-ROYCE HIGH TEMPERATURE COMPOSITES INC., Cypress, CA (US);

Attorney:

Crowell & Moring LLP

Primary Examiner:

Jeffrey M Wollschlager

Assistant Examiner:

Xue H Liu

Int. Cl.
CPC ...
C04B 35/638 (2006.01); C04B 35/80 (2006.01); D02G 3/44 (2006.01); D02J 13/00 (2006.01); D02J 1/08 (2006.01); C04B 35/622 (2006.01); C04B 35/628 (2006.01); D02G 3/04 (2006.01); B29C 70/18 (2006.01); D02J 1/18 (2006.01); B29C 70/30 (2006.01); B29C 70/36 (2006.01);
U.S. Cl.
CPC ...
C04B 35/80 (2013.01); B29C 70/18 (2013.01); B29C 70/30 (2013.01); B29C 70/36 (2013.01); C04B 35/6225 (2013.01); C04B 35/62236 (2013.01); C04B 35/62245 (2013.01); C04B 35/62272 (2013.01); C04B 35/62281 (2013.01); C04B 35/62884 (2013.01); C04B 35/638 (2013.01); D02G 3/04 (2013.01); D02G 3/447 (2013.01); D02J 1/08 (2013.01); D02J 1/18 (2013.01); D02J 13/00 (2013.01); C04B 2235/5224 (2013.01); C04B 2235/5228 (2013.01); C04B 2235/5236 (2013.01); C04B 2235/5244 (2013.01); C04B 2235/5248 (2013.01); C04B 2235/5252 (2013.01); C04B 2235/614 (2013.01); D10B 2101/08 (2013.01); D10B 2101/12 (2013.01); D10B 2321/06 (2013.01); D10B 2321/12 (2013.01); D10B 2331/04 (2013.01); D10B 2331/06 (2013.01); D10B 2505/02 (2013.01);
Abstract

A method of making a ceramic fiber tow and the system regarding the same may be included. The method may include commingling a plurality of ceramic fibers with a fugitive fiber to form a single ceramic fiber tow. The fugitive fiber may be positioned between at least two ceramic fibers included in the single ceramic fiber tow. The method may further include forming a porous ceramic preform including at least the single ceramic fiber tow. The method may further include removing the fugitive fiber from the ceramic fiber tow leaving a space between at least two ceramic fibers of the single ceramic fiber tow. The method may further include replacing the spaces between ceramic fibers included in the ceramic fiber tows with a ceramic matrix.

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