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US 8,801,863 B2Granted
Dishwasher with rack corner spray system
AssigneeWhirlpool Corporation
InventorsWalter T. Blanchard, David H. Chen
Life of this patent
Estimating the term…
Abstract
A dishwasher includes a rack provided with interior and exterior corner nozzles to direct washing fluid onto interior and exterior surface portions of an object placed in a corner of the rack.
Claims20
A dishwasher comprising:
- a tub defining a washing chamber adapted to receive and cleanse soiled kitchenware;
- a pump assembly for recirculating washing fluid within the washing chamber during a washing operation;
- a rack mounted in the tub for supporting kitchenware during the washing operation, said rack having at least one corner portion;
- a first spray arm mounted to the rack and configured to direct washing fluid during a washing operation upon kitchenware placed on the rack;
- a second spray arm mounted to the rack, said second spray arm including an interior corner nozzle located within the at least one corner portion of the rack and configured to direct washing fluid from within the rack upward upon kitchenware placed in the at least one corner portion of the rack during the washing operation and an exterior corner nozzle located outside of the at least one corner portion of the rack and configured to direct washing fluid from outside the rack onto an outer surface of the kitchenware placed in the at least one corner portion of the rack;
- and
- a fluid distribution system for supplying washing fluid to each of the first and second spray arms.
4 more elements
A dishwasher comprising:
- a tub defining a washing chamber adapted to receive and cleanse soiled kitchenware;
- a pump assembly for recirculating washing fluid within the washing chamber during a washing operation;
- a rack mounted in the tub for supporting kitchenware during the washing operation, said rack having at least one corner portion;
- a first spray arm mounted to the rack, wherein the first spray arm is rotatable relative to the rack and configured to direct washing fluid during a washing operation upon kitchenware placed on the rack;
- a second spray arm mounted to the rack, said second spray arm including an interior corner nozzle configured to direct washing fluid upward onto an interior surface portion of a container placed in the at least one corner portion of the rack during the washing operation and an exterior corner nozzle configured to direct washing fluid onto an exterior surface portion of the container placed in the at least one corner portion of the rack;
- and
- a fluid distribution system for supply washing fluid to each of the first and second spray arms.
4 more elements
In a dishwasher including:
- a tub defining a washing chamber adapted to receive and cleanse soiled kitchenware;
- a pump assembly for recirculating washing fluid within the washing chamber during a washing operation;
- a rack mounted in the tub for supporting kitchenware during the washing operation, said rack having at least one corner portion;
- a first spray arm mounted to the rack and configured to direct washing fluid during a washing operation upon kitchenware placed on the rack;
- a second spray arm mounted to the rack, said second spray arm including an interior corner nozzle located within the at least one corner portion of the rack and configured to direct washing fluid from within the rack upward upon kitchenware placed in the at least one corner portion of the rack during the washing operation and an exterior corner nozzle located outside of the at least one corner portion of the rack and configured to direct washing fluid from outside the rack onto an outer surface of the kitchenware placed in the at least one corner portion of the rack;
- and a fluid distribution system for supplying washing fluid to each of the first and second spray arms, a method of washing an object of the kitchenware positioned in the at least one corner portion of the rack of the dishwasher during the washing operation comprising:
- delivering a first portion of a first flow of the washing fluid from the pump assembly to the interior corner nozzle to direct the first portion of the washing fluid, from within the rack, upward upon the object during the washing operation;
- and
- delivering a second portion of the first flow of washing fluid to the exterior corner nozzle to direct the second portion of the washing fluid, from outside the rack, onto the object during the washing operation.
6 more elements
Dependencies are inferred from the claim text.