ALEXANDRIA, Va., June 25 -- United States Patent no. 12,338,815, issued on June 24, was assigned to Kerr Machine Co. (Sulphur, Okla.).
"Fluid end" was invented by Micheal Cole Thomas (Azle, Texas), Christopher Todd Barnett (Stratford, Okla.), Kelcy Jake Foster (Sulphur, Okla.), Nicholas Son (Davis, Okla.), John Keith (Ardmore, Okla.) and Mark S. Nowell (Ardmore, Okla.).
According to the abstract* released by the U.S. Patent & Trademark Office: "A fluid end made of a plurality of fluid end sections positioned in a side-by-side relationship. Each fluid end section is made of a housing having a discharge bore and an intake bore formed therein. A fluid routing plug is installed within each housing and is configured to route fluid throughout t...