Method of manufacturing a composite load-bearing structure

Patent metadata

Field	Value
Publication number	US-9403340-B2
Application number	US-201314060912-A
Country	US
Kind code	B2
Filing date	Oct 23, 2013
Priority date	Oct 25, 2012
Publication date	Aug 2, 2016
Grant date	Aug 2, 2016

Abstract

A method of forming a composite structure including passing a web that is impregnated with an uncured resin in an assembly direction. Foam is forced about opposed sides of the web with the web including corrugations at least after this step. Outer skins of a fiber mat are attached onto outer sides of the web and foam. The fiber mat is impregnated with a resin. The combination of the fiber mats, the foam and the web is thermoformed in a mold to provide a shape for a structure.

First claim

The invention claimed is:

1. A method of forming a composite structure comprising the steps of:
a) impregnating a web with an uncured resin and passing the web in an assembly direction, said web being formed of at least one of a polymer, carbon, fiberglass, quartz, or aramid-fiber composite;
b) extruding foam and then positioning the foam about opposed sides of said web with the web including corrugations at least after step b);
c) attaching outer skins of a fiber mat onto out…

Assignees

• Hamilton Sundstrand Corp

Inventors

• Zafiris Georgios S
• Gurvich Mark R
• Wesson John P
• Krishnan Gopal R

Classifications

• B32B2305/022

  Operations & Transport · mapped topic

• B32B3/28 Primary

  Operations & Transport · mapped topic

• B29D99/001

  Operations & Transport · mapped topic

• B32B2262/101

  Operations & Transport · mapped topic

• B32B5/245

  Operations & Transport · mapped topic