US Patent Issued to Progress Rail Locomotive on Sept. 30 for "Swing pump controls" (Illinois, Arizona Inventors)

ALEXANDRIA, Va., Sept. 30 -- United States Patent no. 12,428,815, issued on Sept. 30, was assigned to Progress Rail Locomotive Inc. (LaGrange, Ill.).

"Swing pump controls" was invented by Pengfei Ma (Naperville, Ill.), Brett James Janson (Hanna City, Ill.), Tonglin Shang (Bolingtbrook, Ill.) and Sean Wesley Johnson (Tucson, Ariz.).

According to the abstract* released by the U.S. Patent & Trademark Office: "Systems and method for operating a hydraulic swing system are described herein. The hydraulic swing system may include a first hydraulic pump and a second hydraulic pump in fluid communication with one another. A first hydraulic motor configured to drive rotation of the hydraulic swing system and may be in fluid communication with the f...