ALEXANDRIA, Va., May 19 -- United States Patent no. 12,629,316, issued on May 19, was assigned to GUANGZHOU RISING DRAGON RECREATION INDUSTRIAL Co. LTD. (Guangzhou, China).
"Pulse wall nozzle for bathtub" was invented by Huaibin Zhao (Guangzhou, China) and Xuewen Liu (Guangzhou, China).
According to the abstract* released by the U.S. Patent & Trademark Office: "A pulse wall nozzle for a bathtub includes a nozzle body provided with a water inlet, a nozzle cover provided with water spray holes and a rotating roller. The nozzle body cooperates with the nozzle cover to form a cyclone cavity. The rotating roller arranged in the cyclone cavity is capable of continuously rotating to result in constant change of water outlet positions, so that th...