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.:
Date of Patent:
May. 27, 2014
Filed:
Dec. 15, 2010
Steffen Kunze, Vagen, DE;
Steffen Kunze, Vagen, DE;
Airbus Helicopters Deutschland GmbH, Donawoerth, DE;
Abstract
The present invention relates to a method of fabricating a mold core () for making hollow parts () based on a composite material including fibers, fabrics, or textiles together with a resin, the method consisting in mixing a filler material () and a binder material () in order to obtain a uniform mixture of materials, and in solidifying, compacting, and shaping the resulting mixture in order to constitute said core, the method being characterized in that it further consists in introducing into the mixture at least one complementary material () that is expandable under the effect of heat or by applying another physical or chemical principle, and in mixing said materials () in order to obtain a uniform distribution of the complementary material () in the mixture.