ALEXANDRIA, Va., June 2 -- United States Patent no. 12,644,469, issued on June 2, was assigned to The Gorman-Rupp Co. (Mansfield, Ohio).

"Fluid transfer pump and method of operation" was invented by Matthew Wenger (Fort Wayne, Ind.) and Canlong He (St. Peters, Mo.).

According to the abstract* released by the U.S. Patent & Trademark Office: "A compact fluid transfer pump assembly and method of assembly is disclosed. The compact fluid transfer pump assembly includes a pump enclosure having a pump cavity sized to house a plurality of pump components and an inlet for receiving fluid, a motor enclosure coupled to the pump enclosure having a circular first end spaced by a cylindrical wall having an inner and an outer surface to a circular secon...