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:
Sep. 29, 2020
Filed:
Jun. 05, 2017
Applicant:
The Boeing Company, Chicago, IL (US);
Inventors:
Keith Daniel Humfeld, Federal Way, WA (US);
Scott Hartshorn, Snohomish, WA (US);
Assignee:
The Boeing Company, Chicago, IL (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
D01F 9/22 (2006.01); D01D 5/253 (2006.01); D01D 10/04 (2006.01); D01D 13/02 (2006.01); D01F 9/32 (2006.01); D01D 5/16 (2006.01); D01F 9/14 (2006.01); D01D 10/00 (2006.01); D01F 11/14 (2006.01); D01F 9/12 (2006.01); D01F 11/10 (2006.01);
U.S. Cl.
CPC ...
D01F 9/22 (2013.01); D01D 5/16 (2013.01); D01D 5/253 (2013.01); D01D 10/00 (2013.01); D01D 10/0454 (2013.01); D01D 13/02 (2013.01); D01F 9/14 (2013.01); D01F 9/32 (2013.01); D01F 11/14 (2013.01); D01D 10/0436 (2013.01); D01F 9/12 (2013.01); D01F 11/10 (2013.01);
Abstract
A method and apparatus for manufacturing a carbon fiber. Pressure is applied to a filament to change a cross-sectional shape of the filament and create a plurality of distinct surfaces on the filament. The filament is converted into a graphitic carbon fiber having the plurality of distinct surfaces. A plurality of sizings is applied to the plurality of distinct surfaces of the graphitic carbon fiber in which the plurality of sizings includes at least two different sizings.