ALEXANDRIA, Va., July 7 -- United States Patent no. 12,674,464, issued on July 7, was assigned to NTN Corp. (Osaka, Japan).
"Rotor for electric water pumps and sliding bearing device for water pumps" was invented by Ken Yasuda (Mie, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "To provide a rotor for electric water pumps in which a sliding bearing formed of a thermoplastic resin composition can be produced at a low cost and has superior low friction and low wear property, and an inner diameter of the sliding bearing is hardly contracted by the insert-molding. A rotor 1 used for electric water pumps has a main body 2 that supports an impeller of the pump, a sliding bearing 3 that rotatably supports a s...