ALEXANDRIA, Va., July 15 -- United States Patent no. 12,662,873, issued on June 23, was assigned to UNION WINNER INTERNATIONAL Co. LTD. (Taipei City, Taiwan).
"Pulling cord control device for window blind" was invented by Ming-Tsung Pai (Caotun Township, Taiwan).
According to the abstract* released by the U.S. Patent & Trademark Office: "A pulling cord control device for a window blind includes a frame including first and second seats connected to form an accommodating space and including first and second bases respectively, and a pulling cord control wheel set and at least one coil spring disposed in the accommodating space. The second seat includes at least one dividing rack integrally extending from the second base toward the first bas...