ALEXANDRIA, Va., July 9 -- United States Patent no. 12,352,356, issued on July 8, was assigned to Kerr Machine Co. (Sulphur, Okla.).
"Fluid end with clamped retention" was invented by Kelcy Jake Foster (Sulphur, Okla.), Micheal Cole Thomas (Ardmore, Okla.), Christopher Todd Barnett (Stratford, 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 comprising a plurality of fluid end sections positioned in a side-by-side relationship. Each section comprises a housing containing a reciprocating plunger. One and only one packing seal is installed within the housing and surrounds and engages an outer surface of the plunger. A retaine...