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:
Apr. 14, 2020
Filed:
Apr. 26, 2016
Applicant:
Mitsubishi Aircraft Corporation, Aichi, JP;
Inventors:
Yuichi Yui, Tokyo, JP;
Hiroshi Tokutomi, Tokyo, JP;
Assignee:
MITSUBISHI AIRCRAFT CORPORATION, Aichi, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B29C 70/48 (2006.01); B29C 70/44 (2006.01); B29K 105/08 (2006.01);
U.S. Cl.
CPC ...
B29C 70/443 (2013.01); B29K 2105/08 (2013.01); B29K 2875/00 (2013.01); B29K 2877/00 (2013.01); B29K 2995/0065 (2013.01); B29K 2995/0069 (2013.01);
Abstract
In a molding method using a VaRTM process in which a workpiece is impregnated with resin in a vacuum, the flow channel resistance or the thickness of which is not constant, an air-permeable sheet only permeable to gas and not permeable to resin (liquid) is arranged at the bottom surface of the workpiece to cover the total length of the workpiece in a direction in which the flow channel resistance or the thickness of the workpiece varies, to impregnate the resin.