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US 10,238,266 B2Granted
Dishwasher
AssigneeWhirlpool Corporation
InventorsChristopher J. Carlson, Vincent P. Gurubatham, Jay C. Landsiedel, Edward L. Thies, Chad T. Vanderroest
Life of this patent
Estimating the term…
Abstract
A dishwasher having a tub defining a wash chamber, dish racks located within the wash chamber, and pump assembly for recirculating wash liquid is further provided with a rotating spray arm located configured to direct a spray of liquid into the wash chamber to define a first wash zone and at least one nozzle configured to direct a spray of liquid into the wash chamber to define a second wash zone.
Claims35
A dishwasher comprising:
- a tub at least partially defining a wash chamber;
- a lower dish rack located within the wash chamber;
- an upper dish rack located within the wash chamber above the lower dish rack;
- a lower rotating spray arm located within the wash chamber beneath the lower dish rack and configured to direct a spray of liquid into the wash chamber to define a first wash zone;
- an upper rotating spray arm located within the wash chamber beneath the upper dish rack;
- at least one nozzle having at least one aperture located in the wash chamber beneath the lower rotating spray arm and configured to direct a spray of liquid into the wash chamber to define a second wash zone which is more concentrated than the first wash zone;
- a pump assembly in fluid communication with the tub to draw in liquid from the tub and comprising a pump output for outputting the drawn-in liquid;
- and
- a diverter valve fluidly coupling the pump to the lower rotating spray arm, upper rotating spray arm, and at least one nozzle, and selectively fluidly coupling the pump output to at least one of the lower rotating spray arm, the upper rotating spray arm, or the at least one nozzle.
6 more elements
A dishwasher comprising:
- a tub at least partially defining a wash chamber;
- a lower dish rack located within the wash chamber;
- an upper dish rack located within the wash chamber above the lower dish rack;
- a lower rotating spray arm located within the wash chamber beneath the lower dish rack and configured to direct a spray of liquid into the wash chamber to define a first wash zone;
- an upper rotating spray arm located within the wash chamber beneath the upper dish rack;
- at least one nozzle having at least one aperture located in the wash chamber beneath the lower rotating spray arm and configured to direct a spray of liquid into the wash chamber to define a second wash zone which at least partially overlaps with the first wash zone;
- a pump assembly in fluid communication with the tub to draw in liquid from the tub and comprising a pump output for outputting the drawn-in liquid;
- and
- a diverter valve fluidly coupling the pump to the lower rotating spray arm, upper rotating spray arm, and at least one nozzle, and selectively fluidly coupling the pump output to at least one of the lower rotating spray arm, the upper rotating spray arm, or the at least one nozzle.
6 more elements
Dependencies are inferred from the claim text.