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:
Jan. 06, 2026

Filed:

Jun. 12, 2024
Applicant:

The Boeing Company, Arlington, VA (US);

Inventors:

Shuonan Dong, Newcastle, WA (US);

Marko Oviir, Seattle, WA (US);

Nicholas A. Boroughs, Seattle, WA (US);

Assignee:

The Boeing Company, Arlington, VA (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B29C 70/30 (2006.01); B29C 70/54 (2006.01); B29L 31/30 (2006.01); B64C 1/06 (2006.01);
U.S. Cl.
CPC ...
B29C 70/30 (2013.01); B29C 70/54 (2013.01); B29C 70/545 (2013.01); B64C 1/064 (2013.01); B29L 2031/3076 (2013.01);
Abstract

A method for forming a composite stiffener includes locating a composite sheet on a support surface such that a first sheet-portion of the composite sheet is supported on the support surface and a second sheet-portion of the composite sheet extends beyond the support surface. The method includes separating the second sheet-portion from the first sheet-portion to at least partially form a composite charge. The method includes transferring the composite charge onto a layup surface of a layup tool, wherein the layup surface comprises a curvature along a longitudinal tool-axis of the layup tool. The method includes selectively positioning the layup tool relative to a compaction device such that a compaction force, applied to the composite charge by the compaction device, is normal to the layup surface. The method includes compacting the composite charge on the layup surface to form a portion of the composite stiffener.


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