ALEXANDRIA, Va., Dec. 16 -- United States Patent no. 12,496,488, issued on Dec. 16.
"Easy-to-adjust exercise device" was invented by Jianliang Han (Zhejiang, China).
According to the abstract* released by the U.S. Patent & Trademark Office: "An easy-to-adjust connecting assembly comprises a locking piece and a connecting piece. The connecting piece is provided with a protruding portion and a receiving portion. A movable tooth button is arranged in the receiving portion, an elastic element is arranged between the movable tooth button and the receiving portion, and the movable tooth button is elastically arranged in the receiving portion by the elastic element and comprises a fixing tooth. The locking piece is provided with a receiving slot...