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. 23, 2015
Filed:
Mar. 17, 2011
Shunichi Bandoh, Kakamigahara, JP;
Kojima Kisanuki, Kakamigahara, JP;
Shigeru Hibino, Kakamigahara, JP;
Shunichi Bandoh, Kakamigahara, JP;
Kojima Kisanuki, Kakamigahara, JP;
Shigeru Hibino, Kakamigahara, JP;
KABUSHIKI KAISHA B.I. TEC, Gifu, JP;
Abstract
A stemhas the following elements made from FRP: an upper outer shellU, a main structure upper halfU, a main structure lower halfL, and a lower outer shellL when the stem is placed in a flat state. The elements are integrated into one piece by stacking the elements and applying heat and pressure to melt resins impregnated in the FRP structural elements. Each outer shell is a curved prepreg sheet formed by impregnating carbon fibers arranged at angle of ±45 degrees with a thermoplastic resin, and each upper and lower halve is an evenly stacked part in which prepreg sheets are stacked. Overlapping sectionof the upper and lower outer shells are formed such that the left and right portions of a main structureformed by integrating the upper and lower halvesU,L does not have a stepped outer surface.