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US 2011/0214695 A1Published application
Dishwasher with separate sump for concentrated fluid supply
AssigneeWhirlpool Corporation
InventorsBOMA M. BROWN-WEST, KRISTOPHER L. DELGADO, JANICE M. KAEDING, JAMIE M. MCQUEEN, SATHISH A. SUNDARAM, TREMITCHEL WRIGHT
Life of this patent
Estimating the term…
Abstract
A dishwasher includes a main sump that holds the main wash fluid supply, and a separate sump formed in the bottom wall of the tub away from the main sump. The separate sump holds a concentrated wash fluid supply. The separate sump supplies wash fluid for washing periods in which a highly concentrated chemistry mixture is desired.
Claims20
A dishwashing method performed by a dishwashing machine, comprising:
- directing fluid into a first sump located in a bottom wall of a tub of the dishwashing machine,
- directing wash fluid from the first sump to a spray system located in the tub,
- directing a second volume of fluid into a second sump located in the bottom wall of the tub and spaced from the first sump,
- creating a concentrated wash fluid in the second sump, the concentrated wash fluid having a higher wash chemistry concentration than the wash fluid from the first sump, and
- directing the concentrated wash fluid to the spray system.
2 more elements
A dishwashing method performed by a dishwashing machine, comprising:
- directing a first volume of fluid into a first sump located in a bottom wall of a tub of the dishwashing machine,
- directing wash fluid from the first sump to a first fluid delivery device located in the tub,
- directing a second volume of fluid into a second sump located in the bottom wall of the tub and spaced from the first sump,
- creating a concentrated wash fluid in the second sump, the concentrated wash fluid having a higher wash chemistry concentration than the wash fluid in the first sump, and
- directing the concentrated wash fluid to a second fluid delivery device.
2 more elements
Dependencies are inferred from the claim text.