US Patent Issued to COTTAI on Sept. 15 for "Dual-spring dual-rope roller blind controller" (Taiwanese Inventor)

ALEXANDRIA, Va., Sept. 15 -- United States Patent no. 12,735,942, issued on Sept. 15, was assigned to COTTAI LTD. (Tainan City, Taiwan).

"Dual-spring dual-rope roller blind controller" was invented by Kuan-Ting Chen (Tainan City, Taiwan).

According to the abstract* released by the U.S. Patent & Trademark Office: "A dual-spring dual-rope roller blind controller is mounted at a roller blind and comprises a housing, a roll-and-collect module and a driving shaft, both mounted inside the housing. The roll-and-collect module comprises a first and a second roll-and-collect assembly arranged oppositely and structurally identical. Each roll-and-collect assembly comprises a collecting disc with a rope, a resilient roll-and-collect element and a res...