ALEXANDRIA, Va., March 26 -- United States Patent no. 12,257,471, issued on March 25.
"Counterweight adjusting apparatus for weight-lifting equipment" was invented by Zhengxiang Cheng (Hubei, China).
According to the abstract* released by the U.S. Patent & Trademark Office: "A counterweight adjusting apparatus for weight-lifting equipment includes a connection assembly and a limiting assembly for sleeving counterweight sheets. The limiting assembly includes a limiting plate, a sleeve rod is provided on the limiting plate, the sleeve rod is inserted into the connection assembly, a clamping member is provided in the connection assembly, at least one clamping groove is provided on the sleeve rod, the clamping member is matched with the at le...