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. 13, 2021
Filed:
Feb. 19, 2019
Mitsubishi Heavy Industries, Ltd., Tokyo, JP;
Kodai Shimono, Tokyo, JP;
Ryoji Okabe, Tokyo, JP;
MITSUBISHI HEAVY INDUSTRIES, LTD., Tokyo, JP;
Abstract
A forming method of a cylindrical composite material includes layering a plurality of composite material sheets in a cylindrical shape with splices formed between ends of adjacent composite material sheets such that phases of the splices in a circumferential direction differ from each other; heating the composite material sheets layered at the layering while pressurizing the composite material sheets in a state where the layered composite material sheets are disposed along an inner surface of a composite material cylindrical mold to cause a resin included in the composite material sheets to react to combine the composite material sheets to be formed in a cylindrical shape; and performing an adhesion pretreatment that is performed before the heating and allows the inner surface of the composite material cylindrical mold to adhere to an outermost composite material sheet of the layered composite material sheets.