US Patent Issued to Ningbo Jieshu Window Coverings Manufacturing on Sept. 16 for "Gravity-free spring roller blind controller" (Chinese Inventor)

ALEXANDRIA, Va., Sept. 17 -- United States Patent no. 12,416,202, issued on Sept. 16, was assigned to Ningbo Jieshu Window Coverings Manufacturing Co. Ltd. (Ningbo, China).

"Gravity-free spring roller blind controller" was invented by Jiebing Lu (Ningbo, China).

According to the abstract* released by the U.S. Patent & Trademark Office: "Provided in the present invention is a gravity-free spring roller blind controller. The gravity-free spring roller blind controller comprises a torque adjustment assembly and a torsion spring connecting rod assembly. The torque adjustment assembly comprises a bracket, a torsion spring mounting seat, a guide sleeve, and a roller blind sleeve. A one-way torsion spring is sleeved on a mounting shaft of the to...