US Patent Issued to NINGBO SUNFREE MOTOR TECHNOLOGY on July 14 for "Double-row rope winder for curtain and electric curtain" (Chinese Inventor)

ALEXANDRIA, Va., July 14 -- United States Patent no. 12,680,377, issued on July 14, was assigned to NINGBO SUNFREE MOTOR TECHNOLOGY COMPANY Ltd. (Ningbo City, China).

"Double-row rope winder for curtain and electric curtain" was invented by Chun Jiang (Ningbo City, China).

According to the abstract* released by the U.S. Patent & Trademark Office: "A double-row rope winder for a curtain and an electric curtain are provided which comprise a rope winder seat; at least two winding core mounting grooves are juxtaposed on the rope winder seat; a winding core is disposed in the winding core mounting grooves respectively; a first rotary part and a second rotary part are respectively disposed at both ends of the winding cores; a first supporting p...