Multiple wash zone dishwasher
First Claim
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1. A dishwasher comprising:
- an interior tub having walls, including at least opposing side walls connected by a rear wall, defining an interior wash chamber for washing dishes;
a lower dish rack having sides, including at least opposing sides connected by a rear side, and located within the wash chamber such that the sides are adjacent to a corresponding wall of the interior tub;
an upper dish rack having sides, including at least opposing sides connected by a rear side, and located above the lower dish rack within the wash chamber;
a first spray arm assembly located beneath the lower dish rack and configured to spray a first flow of wash liquid toward the lower dish rack and configured to provide a first wash zone;
a stationary manifold having a plurality of nozzles fluidly coupled by at least one passageway, the stationary manifold mounted on one of the walls of the interior tub adjacent to a corresponding side of the lower dish rack, the stationary manifold configured to provide a second flow of wash liquid along the corresponding side of the lower dish rack thereby providing a second wash zone; and
a supply tube in fluid communication with the first spray arm assembly and the at least one passageway and configured to simultaneously provide wash liquid to the first spray arm assembly and the stationary manifold.
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Abstract
The present invention relates to a dishwasher, and more particularly to a dishwasher having multiple wash zones. The dishwasher has an interior tub configured to provide an interior wash chamber for washing dishes. It also has a spray arm assembly configured to spray a first flow of wash liquid over a portion of the interior tub thereby providing a first wash zone. A spray manifold fixed adjacent a lower dish rack provided within the wash chamber is configured to provide a second flow of wash liquid toward the lower dish rack, thereby providing a second wash zone.
215 Citations
57 Claims
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1. A dishwasher comprising:
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an interior tub having walls, including at least opposing side walls connected by a rear wall, defining an interior wash chamber for washing dishes; a lower dish rack having sides, including at least opposing sides connected by a rear side, and located within the wash chamber such that the sides are adjacent to a corresponding wall of the interior tub; an upper dish rack having sides, including at least opposing sides connected by a rear side, and located above the lower dish rack within the wash chamber; a first spray arm assembly located beneath the lower dish rack and configured to spray a first flow of wash liquid toward the lower dish rack and configured to provide a first wash zone; a stationary manifold having a plurality of nozzles fluidly coupled by at least one passageway, the stationary manifold mounted on one of the walls of the interior tub adjacent to a corresponding side of the lower dish rack, the stationary manifold configured to provide a second flow of wash liquid along the corresponding side of the lower dish rack thereby providing a second wash zone; and a supply tube in fluid communication with the first spray arm assembly and the at least one passageway and configured to simultaneously provide wash liquid to the first spray arm assembly and the stationary manifold. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19)
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20. A dishwasher comprising:
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an interior tub having walls, including at least opposing side walls connected by a rear wall, defining an interior wash chamber for washing dishes; a lower dish rack having sides, including at least opposing sides connected by a rear side, and located within the wash chamber such that the sides are adjacent to a corresponding wall of the interior tub; an upper dish rack having sides, including at least opposing sides connected by a rear side, and located above the lower dish rack within the wash chamber; a first spray arm assembly located beneath the lower dish rack and configured to spray a first flow of wash liquid toward the lower dish rack to provide a first wash zone; a stationary manifold mounted on one of the walls of the interior tub adjacent to a corresponding side of the lower dish rack, with the stationary manifold configured to provide a second flow of wash liquid, which is more intensified than the first flow of wash liquid, toward the lower dish rack thereby providing a second wash zone that is more intensified than the first wash zone; and a supply tube in fluid communication with the first spray arm assembly and the stationary manifold and configured to simultaneously provide wash liquid to the first spray arm assembly and the stationary manifold. - View Dependent Claims (21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39)
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40. A dishwasher comprising:
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an interior tub having walls, including at least opposing side walls connected by a rear wall, defining an interior wash chamber for washing dishes; a lower dish rack having sides, including at least opposing sides connected by a rear side, and located within the wash chamber such that the sides are adjacent to a corresponding wall of the interior tub; an upper dish rack having sides, including at least opposing sides connected by a rear side, and located above the lower dish rack within the wash chamber; a first spray arm assembly located beneath the lower dish rack and configured to spray a first flow of wash liquid toward the lower dish rack to provide a first wash zone; a stationary manifold mounted on one of the walls of the interior tub adjacent to a corresponding side of the lower dish rack, with the stationary manifold configured to provide a second flow of wash liquid, which is more concentrated than the first flow of wash liquid, toward the lower dish rack thereby providing a second wash zone that is more concentrated than the first wash zone; and a supply tube in fluid communication with the first spray arm assembly and the stationary manifold and configured to simultaneously provide wash liquid to the first spray arm assembly and the stationary manifold. - View Dependent Claims (41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57)
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Specification