ALEXANDRIA, Va., Dec. 16 -- United States Patent no. 12,497,827, issued on Dec. 16, was assigned to Teh Yor Co. Ltd. (New Taipei, Taiwan).

"Window shade and actuating system thereof" was invented by Chung-Chen Huang (New Taipei, Taiwan).

According to the abstract* released by the U.S. Patent & Trademark Office: "An actuating system for a window shade includes a transmission axle, a braking spring having an engaged state adapted to prevent rotation of the transmission axle and a release state allowing rotation of the transmission axle, a brake actuating mechanism including a switching actuator operable between a first and a second position to switch the braking spring between the engaged state and the release state, the first position corr...