Method of operating a dishwasher pump and filtration system
US6811617B2 · kind B2 · utility
23Cited by
36References
27Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 2, 2002 |
| Grant date | Nov 2, 2004 |
| Priority date | — |
| Expiry date | Aug 15, 2022 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA47L15/4225
- WIPO fieldFurniture, games
- WIPO sectorOther fields
Abstract
A dishwasher functions to chop all fluid entrained soil prior to directing fluid to at least upper and lower wash arms and 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. When the fine mesh filter becomes clogged, fluid is forced to flow up an overflow tube and be exposed to another filter. The draining of portions of the system are sequenced to enhance soil removal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.