ALEXANDRIA, Va., Oct. 6 -- United States Patent no. 12,752,893, issued on Oct. 6, was assigned to City University of Hong Kong (Kowloon, Hong Kong).
"Robotic fish with controlled bistable elastic propulsion system" was invented by Xingjian Jing (Shatin, Hong Kong) and Xu Chao (Kowloon Bay, Hong Kong).
According to the abstract* released by the U.S. Patent & Trademark Office: "A device for providing propulsion in water that includes an elongated elastic member, a parallel linkage mechanism with a first link and a second link, and a propelling member connected to a free end of the elongated elastic member. A first end of the first link is fixedly located relative to a fixed end of the elongated elastic member and adapted to pivot by a first...