ALEXANDRIA, Va., March 12 -- United States Patent no. 12,246,584, issued on March 11.
"Roller shutter tail cover and roller shutter cover" was invented by Xiaoqian Ying (Zhejiang, China).
According to the abstract* released by the U.S. Patent & Trademark Office: "Provided in the present disclosure are a roller shutter tail cover and a roller shutter cover with the same. The roller shutter tail cover includes a cover body, a limit switch, and a limit device, where the limit switch is disposed on the cover body, and the limit device is connected to the limit switch. During motion of the roller shutter tail cover, when the limit switch is touched, the limit switch starts the limit device, and the limit device works to limit the motion of the...