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:
Nov. 05, 2002
Filed:
Sep. 15, 2000
Eiichi Nakasato, Kakamigahara, JP;
Noriaki Katayama, Kakamigahara, JP;
Tetsuya Hori, Kakamigahara, JP;
Asao Kakinuma, Kakamigahara, JP;
Abstract
A flap hinge mechanism has a blade-secured portion secured to blade, a flap-secured portion secured to flap, and a coupling portion which couples the blade-secured portion and the flap-secured portion so as to permit angular displacement. The blade-secured portion, coupling portion, and flap-secured portion are formed of fibers which serve as composite material. The fibers of the blade-secured portion and flap-secured portion are impregnated with matrices, and the fibers of the coupling portion are not impregnated with a matrix. Such constitution permits attainment of smooth flap motion in spite of large centrifugal forces, making the achievement of thin, light designs possible.