Patent ID: 7836877

Claim:
A downdraft ventilator system comprising: a telescoping hood; a shaft in fluid communication with the hood for removing of gases and odors; an electronic controller to move the hood to user selected heights above a cook top, wherein the user selected height of the hood can be established anywhere along a continuously variable range of heights defined between a fully retracted position and a fully extended position; a heat exchanger in communication with the shaft; a top trim having a fixed outer rim edge with a movable center plate, wherein the outer rim is fastened to a support frame to secure the system in place, wherein the plate can rise and retract with the elevating hood; ducting to move air back in and out of the shaft; a retractable shelf connected to the hood; and a retractable hinged flap connected to the hood that extends outwardly when the hood is raised and aids in extraction of cooking vapors.