US Patent Issued to Medeli Musical Instrument (Zhuhai), Medeli Electronics (Shanghai) on May 20 for "Spring keyboard" (Chinese Inventors)

ALEXANDRIA, Va., June 16 -- United States Patent no. 12,308,003, issued on May 20, was assigned to Medeli Musical Instrument (Zhuhai) Co. Ltd. (Zhuhai, China) and Medeli Electronics (Shanghai) Co. Ltd (Shanghai).

"Spring keyboard" was invented by Xiaoxian Fan (Zhuhai, China), Dominic Chun hei Au (Zhuhai, China), Guozong Liu (Zhuhai, China) and Peng Zhou (Zhuhai, China).

According to the abstract* released by the U.S. Patent & Trademark Office: "A spring keyboard is disclosed. The spring keyboard includes a key support (1) and multiple keys (2) disposed on the key support (1), A back end of a key (2) is connected with the key support (1) through a spring (3). The key support (1) includes a first rotary structure (41). The key (2) includes ...