ALEXANDRIA, Va., Dec. 31 -- United States Patent no. 12,510,266, issued on Dec. 30, was assigned to TRANE INTERNATIONAL INC. (Davidson, N.C.).
"Fan powered exhaust hood" was invented by Joseph J. Fiegen (La Crosse, Wis.) and Joseph R. Orr (Houston, Minn.).
According to the abstract* released by the U.S. Patent & Trademark Office: "An air handling unit for a heating, ventilation, air conditioning, and refrigeration system wherein the exhaust air is drawn away from the return air flow by one or more fans located cantilevered on a wall of the air handling unit. The one or more fans may be located within an exhaust hood, through which the exhaust air exits the air handling unit. This air handling unit has a shorter length through elimination ...