ALEXANDRIA, Va., Feb. 24 -- United States Patent no. 12,560,390, issued on Feb. 24, was assigned to CONSAT AB (Partille, Sweden).
"Grey water heat recovery apparatus" was invented by Emil Brandt (Alingsas, Sweden), Ian Hostetter (Molndal, Sweden) and Martin Hogander (Surte, Sweden).
According to the abstract* released by the U.S. Patent & Trademark Office: "A grey water heat recovery apparatus is disclosed in which heat is transferred between a grey water stream and a fresh water stream. The apparatus comprises: a grey water flow path leading from a source inlet to a drain outlet; a plurality of heat exchangers arranged in said grey water flow path; a separator arranged upstream of said heat exchangers, arranged to separate grey water fro...