Method of operating a dishwasher pump and filtration system
US8268082B2 · kind B2 · utility
3Cited by
7References
6Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 3, 2007 |
| Grant date | Sep 18, 2012 |
| Priority date | — |
| Expiry date | Jun 6, 2030 |
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.