Dishwasher fine filter assembly with helical flow path
US6698438B2 · kind B2 · utility
15Cited by
7References
18Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 22, 2000 |
| Grant date | Mar 2, 2004 |
| Priority date | — |
| Expiry date | Dec 22, 2020 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA47L15/4225
- WIPO fieldFurniture, games
- WIPO sectorOther fields
Abstract
A fine filter assembly for a dishwasher includes a filter body having a soil accumulation trough. The soil accumulation trough defines a substantially helical flow path between a fine filter inlet and an outlet. A natural flow path is therefore provided to efficiently clean fine the filter assembly with downwardly directed fluid jets generated by a lower spray arm assembly. Soil is directed to a fine filter drain tube with relative ease, thereby facilitating use of more efficient use of a drain pump inlet as a soil collection chamber during wash cycles.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.