Rotating filter for a dishwasher and methods of cleaning a rotating filter
First Claim
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1. A pump and filter assembly of a dishwasher, comprising:
- an impeller adapted to recirculate liquid;
a housing defining an interior and exterior;
a rotating filter having an upstream surface and a downstream surface, the rotating filter located within the interior such that liquid being pumped through the pump and filter assembly passes through the rotating filter from the upstream surface to the downstream surface to effect a filtering of the liquid; and
a granular agent reservoir in open communication with at least a portion of the rotating filter and storing a granular agent, which contacts and scours the rotating filter to clean the rotating filter during rotation.
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Abstract
A pump and filter assembly including an impeller adapted to recirculate liquid, a housing defining an interior and exterior, a rotating filter having an upstream surface and a downstream surface, the filter located within the interior such that liquid being pumped through the pump and filter assembly passes through the filter from the upstream surface to the downstream surface to effect a filtering of the liquid, and a granular agent supply with granular agent cleaning the rotating filter by scouring the filter.
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Citations
20 Claims
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1. A pump and filter assembly of a dishwasher, comprising:
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an impeller adapted to recirculate liquid; a housing defining an interior and exterior; a rotating filter having an upstream surface and a downstream surface, the rotating filter located within the interior such that liquid being pumped through the pump and filter assembly passes through the rotating filter from the upstream surface to the downstream surface to effect a filtering of the liquid; and a granular agent reservoir in open communication with at least a portion of the rotating filter and storing a granular agent, which contacts and scours the rotating filter to clean the rotating filter during rotation. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A pump and filter assembly of a dishwasher, comprising:
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an impeller adapted to recirculate liquid; a housing defining an interior and exterior; a rotating filter having an upstream surface and a downstream surface, the rotating filter located within the interior such that liquid being pumped through the pump and filter assembly passes through the rotating filter from the upstream surface to the downstream surface to effect a filtering of the liquid; and a granular agent supply comprising a granular agent configured to be dispensed from the granular agent supply into contact with the rotating filter such that the granular agent cleans the rotating filter by scouring the rotating filter. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19, 20)
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Specification