ALEXANDRIA, Va., Jan. 29 -- United States Patent no. 12,209,457, issued on Jan. 28.
"Decelerating and positioning device for roller shade" was invented by Chih-Yung Wang (Taipei, Taiwan).
According to the abstract* released by the U.S. Patent & Trademark Office: "A decelerating and positioning device for a roller shade, the decelerating and positioning device comprising a sleeve, an elastic member provided on one side of the sleeve, a rotator providing an engagement structure on an other side of the elastic member, a limiting rotating body pushes the rotator to rotate and displace, and a fixing shaft allowing the limiting rotating body and the rotator to rotate."
The patent was filed on Oct. 18, 2022, under Application No. 17/968,425.
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