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:
Oct. 03, 2023

Filed:

Jun. 15, 2021
Applicant:

The Boeing Company, Chicago, IL (US);

Inventors:

Andrew Klimovski, Melbourne, AU;

Karlgren Ka-Tsun Lai, Doncaster East, AU;

Benjamin Stanislaw Zielinski, Melbourne, AU;

Assignee:

The Boeing Company, Chicago, IL (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B29C 70/52 (2006.01); B29C 70/20 (2006.01); B29K 105/08 (2006.01); B29K 307/04 (2006.01); B29L 31/30 (2006.01); B29K 101/12 (2006.01);
U.S. Cl.
CPC ...
B29C 70/526 (2013.01); B29C 70/20 (2013.01); B29C 70/52 (2013.01); B29C 70/527 (2013.01); B29C 70/528 (2013.01); B29K 2101/12 (2013.01); B29K 2105/08 (2013.01); B29K 2307/04 (2013.01); B29L 2031/3076 (2013.01);
Abstract

Systems and methods are provided for applying lengthwise curvature to composite parts. One embodiment is a method that includes fabricating a preform for a curved pultruded gap filler by continuously: heating fiber reinforced material to a sticking point temperature for a constituent material within the fiber reinforced material, and feeding the fiber reinforced material through a die that exhibits a curvature through which the fiber reinforced material travels while the fiber reinforced material is heated to the sticking point temperature, the die forming the fiber reinforced material into a preform for a gap filler. Fabricating the curved pultruded preform further includes varying path lengths of fibers within the preform as the preform passes through the die, and pulling the preform out of the die.


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