US Patent Issued to Ningbo Tidal Industrial Design, Zhejiang Qili Health Technology on Sept. 30 for "Adjustable dumbbell" (Chinese Inventors)

ALEXANDRIA, Va., Sept. 30 -- United States Patent no. 12,427,360, issued on Sept. 30, was assigned to Ningbo Tidal Industrial Design Co. Ltd (Ningbo, China) and Zhejiang Qili Health Technology Ltd. (Jinhua, China).

"Adjustable dumbbell" was invented by Zhan Li (Ningbo, China) and Gaowang Weng (Yongkang, China).

According to the abstract* released by the U.S. Patent & Trademark Office: "There is provided an adjustable dumbbell including a dumbbell body, dumbbell plates, and a dumbbell base for placing the dumbbell body and dumbbell plates. The dumbbell implements transmission in a mode of meshing internal gear rings with gear sets and meshing the gear sets with teeth on telescopic sleeves, such that a high transmission efficiency is achiev...