ALEXANDRIA, Va., Sept. 24 -- United States Patent no. 12,741,431, issued on Sept. 22, was assigned to ILJIN HYSOLUS Co. LTD (Wanju-gun, South Korea).
"Method for winding filament and pressure vessel manufactured thereby" was invented by Su Jin Yoon (Wanju-gun, South Korea), Jun Young Kang (Wanju-gun, South Korea), Jong Lyul Kim (Wanju-gun, South Korea) and Hye Son Kim (Wanju-gun, South Korea).
According to the abstract* released by the U.S. Patent & Trademark Office: "The present invention provides a filament winding method including operation (a) of forming a first pattern layer by winding a fiber reinforcement composite material on an outer circumferential surface of a liner, operation (b) of forming a first composite layer by winding t...