ALEXANDRIA, Va., July 16 -- United States Patent no. 12,669,013, issued on June 30, was assigned to LIN GWO TSAIR ENTERPRISE Co. LTD. (Tainan City, Taiwan).
"Drive device for vertical window blind" was invented by Yu-Hao Lin (Tainan City, Taiwan).
According to the abstract* released by the U.S. Patent & Trademark Office: "A drive device for a vertical window blind includes: a driving connecting rod, a driving screw rod and an open-and-close transmission rod connected with a slat open-and-close control screw of the vertical window blind, wherein the driving connecting rod drives the slat open-and-close control screw to axially rotate in the horizontal direction by the rotational driving force via the driving screw rod and the open-and-clos...