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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 11292213 B1

PDFFull Text
Date of Patent:
Apr. 05, 2022

Filed:

Dec. 17, 2015

Fiber-reinforced structures

Applicant:

Alpraaz Ab, Angelholm, SE;

Inventor:

Christian Von Koenigsegg, Vejbystrand, SE;

Assignee:

Alpraaz AB, Angelholm, SE;

Attorney:

Schott, P.C.

Primary Examiner:

Matthew J Daniels

Assistant Examiner:

Hana C Page

Int. Cl.
CPC ...
B29C 70/44 (2006.01); B29C 33/40 (2006.01); B29C 49/44 (2006.01); B29C 33/52 (2006.01); B29C 53/56 (2006.01); B29C 33/44 (2006.01); B29C 53/82 (2006.01); B29K 21/00 (2006.01); B29K 105/12 (2006.01); B29K 63/00 (2006.01); B29K 105/06 (2006.01); B29K 223/00 (2006.01); B29K 307/04 (2006.01); B29L 22/00 (2006.01);
U.S. Cl.
CPC ...
B29C 70/446 (2013.01); B29C 33/40 (2013.01); B29C 33/448 (2013.01); B29C 33/52 (2013.01); B29C 49/44 (2013.01); B29C 53/566 (2013.01); B29C 53/822 (2013.01); B29K 2021/006 (2013.01); B29K 2063/00 (2013.01); B29K 2105/06 (2013.01); B29K 2105/12 (2013.01); B29K 2223/06 (2013.01); B29K 2307/04 (2013.01); B29L 2022/00 (2013.01);
Abstract

A method for manufacturing a fiber reinforced structure includes the following. A mandrel of a first material comprises a hollow interior and an aperture that allows a fluid to enter the interior. A layer of a second material provided on the mandrel includes an uncured resin and fibers. The mandrel and the layer are placed in a mold cavity formed by a mold. A pressurized fluid is introduced into the interior of the mandrel via the aperture to generate a force acting to expand the mandrel outward. The mandrel is heated so that it becomes deformable and expand outward to press the layer against the mold. The layer is heated so that it cures. The mandrel is then heated to a temperature above its melting point of the first material so that it melts, after which it is removed.

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Von Koenigsegg, Christian. (2022). Fiber-reinforced structures (U.S. Patent No. 11292213). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/11292213

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