ALEXANDRIA, Va., April 15 -- United States Patent no. 12,600,652, issued on April 14, was assigned to DENTRO-P LLC (Yakima, Wash.).
"Method for maintaining accurate and precise surface wasting flow conditions using an automated overflow weir" was invented by Thomas E. Coleman (Yakima, Wash.).
According to the abstract* released by the U.S. Patent & Trademark Office: "A method for the treatment of municipal wastewater by an activated sludge process that uses an overflow weir to extract waste flows from the surface of aeration basins, which is especially useful for continuous-flow treatment systems. A downward opening overflow weir is precisely controlled to remove a surface wasting flow from the aeration basin with the weir automatically m...