ALEXANDRIA, Va., June 6 -- United States Patent no. 12,281,649, issued on April 22, 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 comprising a plurality of fluid end sections positioned in a side-by-side relationship. Each fluid end section is releasably attached to a connect plate. Each connect plate is attached to a power source using a plurality of stay rods. Each fluid end section comprises a housing in fluid ...