ALEXANDRIA, Va., Dec. 16 -- United States Patent no. 12,497,954, issued on Dec. 16, was assigned to DANA ITALIA S.R.L. (Arco, Italy).

"Compact volumetric pump" was invented by Michelangelo Marini (Trento, Italy), Matteo Dallapiccola (Trento, Italy) and Pier Paolo Rinaldi (Arco, Italy).

According to the abstract* released by the U.S. Patent & Trademark Office: "Methods and systems for a mechanically driven pump are provided. The mechanically driven pump may apply a piston simultaneously to operate as a guillotine blocking valve and a component to transfer motive force. A spring may apply a force to the piston to oppose a force that is applied to the piston via a cam lobe. The mechanically driven pump exhibits a differential pressure at a c...