ALEXANDRIA, Va., Jan. 13 -- United States Patent no. 12,522,518, issued on Jan. 13, was assigned to UTSUNOMIYA KOGYO Co. LTD. (Tokyo).
"Headrace system" was invented by Hideo Utsunomiya (Tokyo) and Hisao Kumazawa (Tokyo).
According to the abstract* released by the U.S. Patent & Trademark Office: "A headrace system 1 improving a scum generation function of the headrace distributing and supplying raw water to a sedimentation basin provided in a sewage treatment plant to contribute to energy savings in the sewage treatment plant as a whole and contribute to solving environmental problems, which is provided with a buoyant imparting means 20 configured with including an ejector 22, in a side in which the raw water of a headrace body 2 to which...