ALEXANDRIA, Va., June 19 -- United States Patent no. 12,331,745, issued on June 17, was assigned to Boundary Lubrication Systems LLC (Royse City, Texas).
"3-dimensional pump rotor profile" was invented by Travis Rosenbarger (Forney, Texas).
According to the abstract* released by the U.S. Patent & Trademark Office: "A fluid displacement pump having an inner body and an outer body. The inner body includes a first inner lobe profile having a first number of lobes with a first axial extent and a first radial extent; and a second inner lobe profile having the first number of lobes with a second axial extent and a second radial extent. The outer body includes a first outer lobe provide and a second outer lobe profile. The first outer lobe profi...