ALEXANDRIA, Va., Aug. 6 -- United States Patent no. 12,378,939, issued on Aug. 5, was assigned to YUMES FRONTIER INC. (Mie, Japan).
"Hydraulic machine" was invented by Yu Hayashi (Mie, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "A hydraulic machine includes a casing and a runner. The casing includes a main flow path and a fixed flow path. The main flow path is disposed outward and has a spiral shape. An inner diameter decreases toward a center of the spiral. The fixed flow path is disposed inward and introduces water from the main flow path into the runner. The runner is connected to a main shaft along a rotation axis of the runner and includes a plurality of runner vanes. At least one of the plural...