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:
Jun. 28, 2005
Filed:
Nov. 12, 2003
Ross A. Benson, Willow Park, TX (US);
Larry R. Bersuch, Fort Worth, TX (US);
Harry R. Miller, Fort Worth, TX (US);
Ronald P. Schmidt, Fort Worth, TX (US);
Linas Repecka, Lakewood, CA (US);
Ross A. Benson, Willow Park, TX (US);
Larry R. Bersuch, Fort Worth, TX (US);
Harry R. Miller, Fort Worth, TX (US);
Ronald P. Schmidt, Fort Worth, TX (US);
Linas Repecka, Lakewood, CA (US);
Lockheed Martin Corporation, Bethesda, MD (US);
Abstract
A method provides for full or partial infusion of resin into three-dimensional, woven textile preforms. Resin film is placed at selected locations adjacent the preform, and the resin film may be separated from other areas of the preform using separator sheets or other materials. The preform is heated and may be vacuum-bagged to apply pressure, or may be rolled or fed through a die. The heat and pressure cause the resin to infuse into the selected areas of the preform adjacent the resin films. The amount of resin in the partial infusion is the same as is necessary to fully infuse the preform, but the resin remains localized in the selected areas until heated again at cure to cause the resin to flow throughout the preform. The method may also be used to fully infuse the preform with resin by providing sufficient temperature and time at that temperature during the initial infusion.