US Patent Issued to Ningbo Zhenfei Decorated Curtain on July 14 for "Blind cord resistance adjustment structure and blind" (Chinese Inventor)

ALEXANDRIA, Va., July 14 -- United States Patent no. 12,680,378, issued on July 14, was assigned to Ningbo Zhenfei Decorated Curtain Co. Ltd. (Yuyao, China).

"Blind cord resistance adjustment structure and blind" was invented by Jiefei Lu (Yuyao, China).

According to the abstract* released by the U.S. Patent & Trademark Office: "A blind cord resistance adjustment structure and a curtain are provided. The structure includes a cord-winding shaft assembly, an adjustment block, and a blind cord. The cord-winding shaft assembly includes a housing, a rotating shaft, and a shaft sleeve. The shaft sleeve is rotatably mounted inside the housing along its circumferential direction and is sleeved onto and rotates synchronously with the rotating shaf...