US Patent Issued to NINGBO SUNFREE MOTOR TECHNOLOGY on July 7 for "Double-layer day-night curtain system and control method thereof" (Chinese Inventor)

ALEXANDRIA, Va., July 7 -- United States Patent no. 12,674,354, issued on July 7, was assigned to NINGBO SUNFREE MOTOR TECHNOLOGY COMPANY Ltd. (Ningbo City, China).

"Double-layer day-night curtain system and control method thereof" was invented by Chun Jiang (Ningbo City, China).

According to the abstract* released by the U.S. Patent & Trademark Office: "The present invention discloses a double-layer day-night curtain system and a control method thereof; the system comprises an upper rail, a transmission mechanism inside the upper rail, two curtain assemblies connected to the transmission mechanism, a drive mechanism connected to the upper rail to drive the transmission mechanism, and the two curtain assemblies are disposed in parallel; t...