US Patent Issued to Xinjiashang (Dezhou) Fitness Technology on Sept. 15 for "Rotatable and adjustable dumbbell" (Chinese Inventors)

ALEXANDRIA, Va., Sept. 15 -- United States Patent no. 12,734,391, issued on Sept. 15, was assigned to Xinjiashang (Dezhou) Fitness Technology Co. Ltd. (Dezhou City, China).

"Rotatable and adjustable dumbbell" was invented by Chun Jiang (Dezhou City, China), Shangwei Chen (Dezhou City, China) and Yong Jiang (Dezhou City, China).

According to the abstract* released by the U.S. Patent & Trademark Office: "A rotatable and adjustable dumbbell, with radial grooves and radial protrusions arranged on left and right sides of dumbbell plates respectively, more than two groove-end axial baffle plates evenly arranged on the radial grooves, inner connecting grooves arranged inside the groove-end axial baffle plates, more than two protrusion-end axial ...