Back to results
US 7,523,758 B2Granted
Dishwasher having rotating zone wash sprayer
AssigneeWhirlpool Corporation
InventorsChad T. Vanderroest, Jay Landsiedel, Antony M. Rappette, David Hung Chi Chen
Life of this patent
Estimating the term…
Abstract
A dishwasher has multiple wash zones which are each supplied by a wash liquid supply. An interior tub configured to provide an interior wash chamber for washing dishes is divisible into a plurality of wash zones supplied by separate wash liquid supplies. One of the wash zones is supplied by a spray manifold having rotating spray heads. The spray heads are provided with internal vanes which urge the spray heads to rotate and direct wash liquid to outlets in the spray heads.
Claims43
A dishwasher comprising:
- a tub defining a wash chamber for receiving utensils for washing;
- a first rack located in the wash chamber for supporting utensils therein and having a bottom side and a peripheral side extending upwardly from the bottom side and terminating in an upper edge;
- a first spray arm assembly configured to rotate within the tub and spray a first flow of wash liquid into the wash chamber thereby providing a first wash zone along the bottom side of the first rack;
- and
- a manifold located within the wash chamber, adjacent at least a portion of the peripheral side and located below the upper edge, and comprising a plurality of rotating spray heads laterally arranged along the peripheral side, with each spray head comprising at least one outlet spraying a second flow of wash liquid toward and through the at least a portion of the peripheral side to provide a second wash zone along the at least a portion of the peripheral side.
2 more elements
A dishwasher comprising:
- a tub defining a wash chamber for receiving utensils for washing;
- a first rack located in the wash chamber for supporting utensils therein and having a bottom side and a peripheral side extending upwardly from the bottom side and terminating in an upper edge;
- and
- a manifold located within the wash chamber, adjacent at least a portion of the peripheral side and located at a height below the upper edge, and comprising a plurality of rotating spray heads laterally arranged along the peripheral side, with each spray head comprising at least one outlet spraying a circulating flow of wash liquid toward and through the at least a portion of the peripheral side to provide a wash zone along at least the portion of the peripheral side.
1 more element
A dishwasher comprising:
- a tub defining a wash chamber for receiving utensils for washing;
- a first rack located in the wash chamber for supporting utensils therein and having a bottom side and a peripheral side extending upwardly from the bottom side and terminating in an upper edge;
- a first spray arm assembly configured to rotate within the tub and spray a first flow of wash liquid into the wash chamber thereby providing a first wash zone along the bottom side of the first rack;
- and
- a manifold located within the wash chamber and comprising a plurality of rotating spray heads, each spray head located at a height below the upper edge and comprising at least one outlet spraying a second flow of wash liquid toward the peripheral side to provide a second wash zone along the peripheral side.
2 more elements
Dependencies are inferred from the claim text.