ALEXANDRIA, Va., June 17 -- United States Patent no. 12,313,048, issued on May 27, was assigned to Kerr Machine Co. (Sulphur, Okla.).
"Fluid end assembly" was invented by Micheal Cole Thomas (Azle, Texas), Christopher Todd Barnett (Stratford, Okla.), Kelcy Jake Foster (Sulphur, Okla.), Nicholas Son (Davis, Okla.) and John Keith (Ardmore, Okla.).
According to the abstract* released by the U.S. Patent & Trademark Office: "A fluid end assembly having a plurality of fluid end sections positioned in a side-by-side relationship. Each fluid end section has a housing made of multiple-piece construction. One or more pieces of the housing have a plurality of stay rods attached thereto. The stay rods interconnect the fluid end assembly and a power e...