ALEXANDRIA, Va., July 21 -- United States Patent no. 12,687,163, issued on July 21, was assigned to Caterpillar Inc. (Peoria, Ill.).
"Cathodic protection of a fluid end" was invented by Jacob Bayyouk (Richardson, Texas).
According to the abstract* released by the U.S. Patent & Trademark Office: "A valve assembly of a fluid end of a pump may include a valve seat having a bore defining an inner surface and an outer surface of the valve seat, a first end configured to engage with a valve in a closed position of the valve, and a second end, opposite the first end, defining a groove surrounding the bore. The valve assembly may include a sacrificial ring, positioned in the groove, configured to control corrosion of a fluid end block of the flui...