ALEXANDRIA, Va., Sept. 10 -- United States Patent no. 12,410,742, issued on Sept. 9, was assigned to LIH YANN INDUSTRIAL Co. LTD. (Taichung, Taiwan).
"Liquid filling device" was invented by Po-Lin Liao (Taichung, Taiwan).
According to the abstract* released by the U.S. Patent & Trademark Office: "A liquid filling device is provided, including: a base, a connecting assembly, a pressure gauge, at least one filling assembly and a negative pressure generator. The base includes a channel, and the channel extends through the base and includes at least one liquid inlet, a first gas port, a second gas port, an assembling opening and a measuring port. The negative pressure generator includes a tube body and a venturi structure, and the tube body i...