ALEXANDRIA, Va., Jan. 13 -- United States Patent no. 12,523,337, issued on Jan. 13, was assigned to Ningbo Weifeng Intelligent Technology Co. Ltd. (Ningbo, China).
"Locking structure for tripod head" was invented by Qi Lu (Ningbo, China).
According to the abstract* released by the U.S. Patent & Trademark Office: "A locking structure for a tripod head is provided. The locking structure for a tripod head includes a base. The base is provided with a lower ball seat and an upper ball seat. A gap is formed between the lower ball seat and the upper ball seat. A cambered surface structure of a supporting ball seat is placed in the gap. The supporting ball seat and the lower ball seat, and the supporting ball seat and the upper ball seat are in c...