US Patent Issued to Zhejiang Zuojian Industry and Trade on March 11 for "Dumbbell with multiple gears of weight adjustment and dumbbell kit" (Chinese Inventor)

ALEXANDRIA, Va., March 12 -- United States Patent no. 12,246,207, issued on March 11, was assigned to Zhejiang Zuojian Industry and Trade Co. Ltd. (Jinhua, China).

"Dumbbell with multiple gears of weight adjustment and dumbbell kit" was invented by Zhaohong Yu (Yongkang, China).

According to the abstract* released by the U.S. Patent & Trademark Office: "A dumbbell with multiple gears of weight adjustment is provided, which includes a dumbbell body, dumbbell pieces provided at two ends of the dumbbell body, and two adjustment mechanisms respectively provided at the two ends of the dumbbell body. The dumbbell body includes a grip rod, a center rod, and two sets of shell components respectively provided on two sides of the grip rod. The cent...