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:
Dec. 18, 2012
Filed:
Jun. 12, 2008
Hiroshi Horigome, Mitaka, JP;
Yasunobu Tanaka, Mitaka, JP;
Masaaki Hirai, Joetsu, JP;
Hiroshi Tanaka, Joetsu, JP;
Hiroshi Horigome, Mitaka, JP;
Yasunobu Tanaka, Mitaka, JP;
Masaaki Hirai, Joetsu, JP;
Hiroshi Tanaka, Joetsu, JP;
Jamco Corporation, Tokyo, JP;
Arisawa Mfg. Co., Ltd., Niigata, JP;
Abstract
There is provided a lightweight sandwich panel of exceptional utility, which satisfies the flexural strength and in-plane shear strength requirements for an inner wall material used in aircraft. The sandwich panel comprises a laminating material in which a plurality of fiber bodies is laminated, and a surface material, the laminating material and the surface material being laminated in the stated order from the inside to the outside on the upper and lower surfaces of a hollow columnar core. The laminating material comprises at least four unidirectional fiber bodies each of which has fibers aligned in a uniform direction and is laminated so that each of the fiber directions thereof is at approximately 0°, +45°, −45°, and 90°, respectively, in relation to one edge of the sandwich panel. The unidirectional fiber bodies are stitched together using a stitching yarn.