ALEXANDRIA, Va., Aug. 6 -- United States Patent no. 12,377,680, issued on Aug. 5, was assigned to Catis Pacific Mfg. Corp. Ltd. (Douliou, Taiwan).
"Caster with a circularly positioning structure" was invented by Ching Sung Lin (Yunlin County, Taiwan).
According to the abstract* released by the U.S. Patent & Trademark Office: "For a caster with a circularly positioning structure, stepping on the pedal can drive the driving rod and the driving piece to rotate, so that the positioning pin of the driving piece cyclically proceeds the first positioning point, the second positioning point and the path point of the positioning member, thereby driving the cam unit to push against the shaft to let the positioning piece and the orienting hole to be...