ALEXANDRIA, Va., Nov. 11 -- United States Patent no. 12,467,549, issued on Nov. 11, was assigned to Caterpillar Global Mining LLC (Tucson, Ariz.).
"Pump control shock absorber" was invented by Pengfei Ma (Naperville, Ill.).
According to the abstract* released by the U.S. Patent & Trademark Office: "A flow limiter for a cut-off valve of a hydraulic pumping system and a hydraulic system using such a flow limiter. The flow limiter provides for limiting a flow through a cut-off valve. The flow limiter for a cut-off valve of a hydraulic pumping system includes a valve body with a hollow channel. The hollow channel has a fluid inlet and a fluid outlet, and the fluid inlet is in fluid communication with a discharge line of the cut-off valve in a...