ALEXANDRIA, Va., July 3 -- United States Patent no. 12,343,585, issued on July 1, was assigned to OHFG TECHNOLOGIES(SHANGHAI) Co. LTD (Shanghai).
"Adjustable dumbbell" was invented by Ping Liu (Shanghai).
According to the abstract* released by the U.S. Patent & Trademark Office: "The application provides an adjustable dumbbell, including a dumbbell bar assembly and a plurality of dumbbell plates hooked to two sides of the dumbbell bar assembly. Inserting plate assemblies for being inserted into insertion ports of the dumbbell plates are disposed at two ends of the dumbbell bar assembly. The inserting plate assemblies are provided with damping block mounting holes, and the damping block mounting holes form third open slots at the bottoms o...