US Patent Issued to KOBELCO CONSTRUCTION MACHINERY on Aug. 25 for "Construction machine" (Japanese Inventors)

ALEXANDRIA, Va., Aug. 25 -- United States Patent no. 12,716,203, issued on Aug. 25, was assigned to KOBELCO CONSTRUCTION MACHINERY Co. LTD. (Hiroshima, Japan).

"Construction machine" was invented by Hidenori Tanaka (Hiroshima, Japan) and Koji Ueda (Hiroshima, Japan).

According to the abstract* released by the U.S. Patent & Trademark Office: "A construction machine includes a relief valve that opens to limit a pressure of a pump discharge line that is a line between a main pump and a direction switching valve, a back pressure generation mechanism that is disposed on a return line that is a line connected to a tank and generates a back pressure in the return line, and an air bleed line that connects the relief valve and a portion downstream...