Dishwasher pump and filtration system
US7252101B2 · kind B2 · utility
7Cited by
16References
19Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 25, 2004 |
| Grant date | Aug 7, 2007 |
| Priority date | — |
| Expiry date | Jun 19, 2025 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA47L2601/02
- WIPO fieldFurniture, games
- WIPO sectorOther fields
Abstract
A dishwasher includes a pump assembly which functions to chop all fluid entrained soil prior to directing fluid to upper and lower wash arms. A flow conduit leading to the upper wash arm is provided with a sampling port which directs a percentage of the fluid flow into a filter chamber having one or more fine mesh filter screens that open into the dishwasher tub basin. The filter chamber receives washing fluid through a sampling port that interconnects with the flow conduit. The filter chamber can be fluidly connected to a drain based on the position of a valve which opens when washing fluid recirculation ceases.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.