Patent ID: 8771408

Claim:
A range hood, comprising: an inlet and an outlet, the inlet being adapted to accept a contaminated effluent stream and the outlet being adapted to be connected directly or indirectly to a blower such that in an operational condition of the range hood, a pressure drop is maintained across the range hood from inlet to outlet, thus drawing the effluent stream from the inlet toward the outlet, the inlet and the outlet being arranged relative to one another such that a relatively straight airflow path is provided for the effluent stream from a point just inside the inlet to the outlet; a substantially horizontally-extending liquid support provided in the airflow path, the liquid support being constructed and arranged to support liquid and having a plurality of perforations such that, in the operational condition, liquid is supported on and retained by the liquid support at least in part by the pressure drop across the range hood, the liquid support being provided in the airflow path such that, in the operational condition, the contaminated effluent stream flows through the liquid support and any liquid supported thereon as it flows along the airflow path; an upper liquid inlet in fluid communication with a liquid source; a reservoir space adjacent to the liquid support, the reservoir space being constructed and arranged to accept and contain liquid from the liquid inlet; and a first partition between the reservoir space and the liquid support, the first partition being arranged such that when the reservoir space is filled to overflow, liquid from the reservoir space moves over the first partition and across the liquid support, thereby skimming the liquid supported on the liquid support; a second partition opposite the first partition on the other side of the liquid support, the second partition creating a drain space for material that is skimmed from the liquid support; and a cover extending over the second partition so as to define a gap between the second partition and the cover, the gap being sized so as to control the rate at which liquid and material is allowed to flow into the drain space.