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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 11772339 B1

PDFFull Text
Date of Patent:
Oct. 03, 2023

Filed:

Jan. 20, 2021

Three-dimensional printing of composite repair patches and structures

Applicants:

The Boeing Company, Chicago, IL (US);

Seoul National University R&db Foundation, Seoul, KR;

Inventors:

Jeong-Beom Ihn, Bellevue, WA (US);

Sung-Hoon Ahn, Seongnam, KR;

Gil-Yong Lee, Seoul, KR;

Hyung-Soo Kim, Seoul, KR;

Min-Soo Kim, Seoul, KR;

Ho-Jin Kim, Seoul, KR;

Soo-Hong Min, Seoul, KR;

Assignee:

The Boeing Company, Arlington, VA (US);

Attorney:

Ostrager Chong Flaherty & Broitman P.C.

Primary Examiner:

Matthew J Daniels

Assistant Examiner:

Gregory C Grosso

Int. Cl.
CPC ...
B29C 73/12 (2006.01); B29C 64/321 (2017.01); B29C 64/209 (2017.01); B29C 64/165 (2017.01); B29C 70/38 (2006.01); B29C 70/54 (2006.01); B29C 70/78 (2006.01); B29C 73/10 (2006.01); B29C 70/68 (2006.01); B33Y 10/00 (2015.01); B33Y 30/00 (2015.01); B29K 63/00 (2006.01); B29K 307/04 (2006.01); B29L 31/30 (2006.01); B29K 105/06 (2006.01);
U.S. Cl.
CPC ...
B29C 73/12 (2013.01); B29C 64/165 (2017.08); B29C 64/209 (2017.08); B29C 64/321 (2017.08); B29C 70/384 (2013.01); B29C 70/545 (2013.01); B29C 70/683 (2013.01); B29C 70/78 (2013.01); B29C 73/10 (2013.01); B29K 2063/00 (2013.01); B29K 2105/06 (2013.01); B29K 2307/04 (2013.01); B29L 2031/3076 (2013.01); B33Y 10/00 (2014.12); B33Y 30/00 (2014.12);
Abstract

Methods and apparatus for automating the fiber laying process during the repair of composite structures made of fiber-reinforced plastic material based on the three-dimensional printing technique. Continuous fiber rovings (e.g., carbon fibers) impregnated with liquid epoxy can be directly printed onto the damaged surface of the composite structure (e.g., an aircraft component made of carbon fiber-reinforced plastic) without human manipulation in an autonomous manner.

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