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:
May. 19, 1998
Filed:
Jun. 01, 1995
Applicant:
Inventors:
Kenichi Aoyagi, Yokohama, JP;
Hiroshi Onoda, Yokohama, JP;
Hidetoshi Takagi, Yokohama, JP;
Tetsufumi Ikeda, Yokohama, JP;
Assignee:
Nippon Oil Co., Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A47G / ;
U.S. Cl.
CPC ...
428 346 ; 428 347 ; 428 357 ; 428 361 ; 428 362 ; 428 363 ; 428107 ;
Abstract
A fiber-reinforced composite cylindrical form formed by winding up unidirectional prepreg sheets around a mandrel according to such four patterns as to set the fiber winding angles of the resulting layers thereof at 0.degree., 90.degree., 40.degree. to 50.degree., and -40.degree. to -50.degree. with the longer direction thereof, and then heat-curing said layers of said prepreg sheets.