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:
Jul. 23, 2019

Filed:

Aug. 25, 2015
Applicant:

The Boeing Company, Chicago, IL (US);

Inventors:

John C. Waldrop, III, St. Peters, MO (US);

Michael W. Hayes, Belleville, IL (US);

Gregory James Schoepen Hickman, University City, MO (US);

Assignee:

The Boeing Company, Chicago, IL (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B29C 70/20 (2006.01); B29C 70/50 (2006.01); B29C 70/54 (2006.01); B29K 71/00 (2006.01); B29K 81/00 (2006.01); B29L 31/30 (2006.01); B33Y 10/00 (2015.01); B33Y 70/00 (2015.01); B29C 64/106 (2017.01); B29K 105/00 (2006.01); B29K 105/10 (2006.01);
U.S. Cl.
CPC ...
B29C 70/545 (2013.01); B29C 70/20 (2013.01); B29C 70/504 (2013.01); B29C 64/106 (2017.08); B29K 2071/00 (2013.01); B29K 2081/06 (2013.01); B29K 2105/106 (2013.01); B29K 2105/253 (2013.01); B29L 2031/3076 (2013.01); B33Y 10/00 (2014.12); B33Y 70/00 (2014.12);
Abstract

Provided are composite feedstock strips for additive manufacturing and methods of forming such strips. A strip may include continuous fibers extending parallel to the principal axis of the strip. The cross-sectional distribution of these continuous fibers may be uneven. Specifically, the fibers may be concentrated near the center of the strip and may be positioned away from at least some portions of the strip surface. A strip may be formed by laminating a layup of one or more fiber-containing plies and one or more of resin plies. The position of the different types of plies in the layup is used to control distribution of the fibers and other materials within the strip. The laminated sheet is slit into multiple strips in a direction parallel to the continuous fibers. The cross-sectional profile of the slit strips may be later changed without disturbing orientation of the continuous fibers.


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