Cleaning and liquid contact with solids – Apparatus – With plural means for supplying or applying different fluids...
Patent
1993-02-19
1994-02-22
Stinson, Frankie L.
Cleaning and liquid contact with solids
Apparatus
With plural means for supplying or applying different fluids...
1341023, 134 56D, 134200, B08B 302
Patent
active
052878686
ABSTRACT:
A convection air inlet and suds control device is provided for a dishwasher. The dishwasher has a washing chamber with a bottom wall, a chimney extending through the bottom wall with opposite upper and lower ends positioned on opposite sides of the bottom wall. A chimney cap is spaced in covering relation over the upper end of the chimney. A container having an inner cup and an outer cup is mounted adjacent the bottom wall such that the inner cup surrounds the lower extension of the chimney. The outer cup includes an opening such that air may flow by convection into the outer cup, into the inner cup and upwardly through the chimney into the washing chamber so as to dry the articles in the dishwasher. In oversudsing conditions, the suds flow downwardly through the chimney for collection in the inner cup. Excess suds filling the inner cup will spill over into the outer cup. The inner cup and lower extension of the chimney cooperate to function as a valve. When liquid deriving from condensing suds in the inner cup rises to a level above the lower end of the chimney, downward flow of suds into the inner cup and upward flow of air through the chimney is prevented. As the liquid evaporates to a level below the lower end of the chimney, the flow of air and suds returns to normal.
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Johnson Thomas M.
Tuller Barry E.
Maytag Corporation
Stinson Frankie L.
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