ALEXANDRIA, Va., April 7 -- United States Patent no. 12,595,881, issued on April 7, was assigned to Kerr Machine Co. (Sulphur, Okla.).
"Lubrication system" was invented by Micheal Cole Thomas (Azle, Texas), Christopher Todd Barnett (Stratford, Okla.), Kelcy Jake Foster (Sulphur, Okla.), Nicholas Son (Davis, Okla.), John Keith (Ardmore, Okla.), Guy J. Lapointe (Sulphur, Okla.) and Brandon Scott Ayres (Ardmore, Okla.).
According to the abstract* released by the U.S. Patent & Trademark Office: "A lubricating system configured to provide a lubricating oil from a lubricant reservoir to a fluid end by use of a pump. The lubricating system has a plurality of check valves that each have an elastomeric insert. The lubricating system also has at le...