US Patent Issued to SPM Oil & Gas on Sept. 8 for "Valve cartridge" (Texas Inventors)

ALEXANDRIA, Va., Sept. 8 -- United States Patent no. 12,729,593, issued on Sept. 8, was assigned to SPM Oil & Gas Inc. (Fort Worth, Texas).

"Valve cartridge" was invented by Daryl James Belshan (Weatherford, Texas), David Theodore Figgs (Fort Worth, Texas), Justin Lane Poehls (Glen Rose, Texas) and Abraham E. Canales (Fort Worth, Texas).

According to the abstract* released by the U.S. Patent & Trademark Office: "A valve cartridge for a fluid end for a well stimulation pump optionally includes: a valve body, a spring engaging the valve body on a first side thereof, and a housing at least partially enclosing the valve body and spring. The housing can define one or more passages therethrough. The housing can define one or more seats adjacent...