ALEXANDRIA, Va., Oct. 21 -- United States Patent no. 12,442,374, issued on Oct. 14, was assigned to HITACHI INDUSTRIAL EQUIPMENT SYSTEMS Co. LTD. (Tokyo).
"Screw compressor with improved suction flow" was invented by Takeshi Tsuchiya (Tokyo), Kotaro Chiba (Tokyo), Toshiaki Yabe (Tokyo), Kohei Sakai (Tokyo), Yuki Taniyama (Tokyo), Sho Nikaido (Tokyo) and Shotaro Sano (Tokyo).
According to the abstract* released by the U.S. Patent & Trademark Office: "A suction flow path of a screw compressor includes a male-side flow path that opens in an axial direction with respect to working chambers in a suction process on the male rotor side and extends from a starting end positioned on one side of a virtual plane to a first termination end positioned...