ALEXANDRIA, Va., March 3 -- United States Patent no. 12,566,468, issued on March 3, was assigned to Zhengzhou Hezhi Jiacheng Technology Co. Ltd. (Zhengzhou, China).
"Pressing rotating structure" was invented by Zhe Ning (Zhengzhou, China).
According to the abstract* released by the U.S. Patent & Trademark Office: "The present invention discloses a pressing rotating structure and a brush. In the pressing rotating structure, a key rotatably connected to a housing is disposed, so that the key can swing between a first position and a second position under a pressing force and an elastic force of an elastic member, to drive a center rotating shaft to rotate through a sectorial tooth on the key and a transmission assembly in sequence, thereby i...