ALEXANDRIA, Va., July 16 -- United States Patent no. 12,359,663, issued on July 15, was assigned to SPM Oil & Gas Inc. (Fort Worth, Texas).
"Valve cartridge for a fluid pump" was invented by Daryl James Belshan (Weatherford, Texas), David T. Figgs (Fort Worth, Texas), Justin Poehls (Glen Rose, Texas) and Abraham Canales (Crowley, Texas).
According to the abstract* released by the U.S. Patent & Trademark Office: "A fluid pump may include a power end, a fluid end having a cartridge bore, and a valve cartridge configured for insertion into, and removal from, the cartridge bore as a unit. The valve cartridge may include a cartridge body having a fluid inlet and a fluid outlet, a first valve assembly configured to control fluid flow through th...