Patent ID: 7798157

Claim:
A condensing apparatus of a dish washer for condensing vapor inside a dish washer tub, the condensing apparatus having a top and a bottom, the condensing apparatus comprising: a blower, at the top of the condensing apparatus, for suctioning the vapor from inside the tub; an air duct forming a vapor passage, comprised of a plurality of vertically stacked horizontal duct segments spaced apart from each other in a vertical direction, a first end of a topmost horizontal duct segment being fluidly coupled to the blower, and each of the remaining plurality of horizontal segments being fluidly connected to the horizontal duct segment directly above it by a curved duct segment such that the air duct folds horizontally back and forth upon itself to form a vertical stack of horizontal duct segments; a condensed water discharge port at a first side of the bottommost one of the plurality of horizontal duct segments; and a vapor exhaust port spaced apart from the condensed water discharge port at an open second end of the bottommost one of the plurality of horizontal duct segments; wherein the air duct includes at least one ridge configured to protrude upward from an inner bottom surface of at least one of the plurality of horizontal duct segments, perpendicular to a direction of vapor being blown by the blower, and configured to collect at least some condensed vapor on the floor of the horizontal portion.