ALEXANDRIA, Va., Dec. 9 -- United States Patent no. 12,491,578, issued on Dec. 9, was assigned to SHENYANG FORTUNE PRECISION EQUIPMENT Co. LTD. (Liaoning, China).
"Plasma arc-laser hybrid welding method for high-sealing aluminum alloy rectangular chamber" was invented by Guangwen Zheng (Liaoning, China), Yongpeng Qiao (Liaoning, China), Dongjiang Wu (Liaoning, China), Fangyong Niu (Liaoning, China) and Guangyi Ma (Liaoning, China).
According to the abstract* released by the U.S. Patent & Trademark Office: "A plasma arc-laser hybrid welding method for a high-sealing aluminum alloy thick plate rectangular chamber is provided. A length, height and width of the rectangular chamber of the high-sealing aluminum alloy thick plate are all less th...