ALEXANDRIA, Va., Oct. 21 -- United States Patent no. 12,766,586, issued on Oct. 20, was assigned to CONTEMPORARY AMPEREX TECHNOLOGY (HONG KONG) Ltd. (Hong Kong).
"Necking method, necking apparatus, and battery manufacturing device" was invented by Youcheng Pan (Ningde, China), Liang Jiang (Ningde, China) and Hao Meng (Ningde, China).
According to the abstract* released by the U.S. Patent & Trademark Office: "The present application provides a necking method, a necking apparatus, and a battery manufacturing device. The necking method is used for forming a necked portion on a shell with an open end. The necking method includes: forming an annular groove on the shell, where the annular groove extends in a circumferential direction of the she...