ALEXANDRIA, Va., Dec. 31 -- United States Patent no. 12,510,164, issued on Dec. 30, was assigned to Vulcan Industrial Holdings LLC (Houston).
"Sleeved fluid end" was invented by Chance Ray Mullins (Spring, Texas), Kyle Matthew Ellisor (Katy, Texas), Jason David Smith (Porter, Texas) and Steven Zachary Newberg (Houston).
According to the abstract* released by the U.S. Patent & Trademark Office: "A fluid end includes a first sleeve associated with a plunger bore, a second sleeve assembly associated with a suction bore, and a packing sleeve retainer positioned at the plunger bore to axially retain a packing sleeve of the first sleeve assembly within the plunger bore, the packing sleeve retainer being coupled to a front face of the fluid end....