ALEXANDRIA, Va., May 26 -- United States Patent no. 12,637,928, issued on May 26, was assigned to Halliburton Energy Services Inc. (Houston).
"Multi valve control for pumps" was invented by Andrew Silas Clyburn (Duncan, Okla.) and Justin Lee Hurst (Duncan, Okla.).
According to the abstract* released by the U.S. Patent & Trademark Office: "A pump comprising a fluid end comprising a bellows housing having an interior volume, a power end, a reciprocating element, a bellows disposed at least partially within the bellows housing and dividing the interior volume of the bellows housing into a first volume interior to the bellows and a second volume exterior to the bellows, suction valve(s) fluidly coupled to the second volume of the bellows hous...