ALEXANDRIA, Va., April 15 -- United States Patent no. 12,601,344, issued on April 14, was assigned to NAPL Solutions LLC (Columbia, S.C.).
"Detection and extraction of NAPL contaminates" was invented by Daniel Alexander Smedley (Baird, Texas).
According to the abstract* released by the U.S. Patent & Trademark Office: "A pump system for selectively extracting nonaqueous phase liquids (NAPLs) from groundwater includes a fuel pump with current monitoring and a control assembly. The system utilizes a conductive probe within a probe body to detect a fluid interface, distinguishing NAPLs from water by measuring conductivity. The control assembly monitors the pump's current draw and adjusts operation to avoid water intake, thereby protecting the...