Dishwasher fine filter pressure relief
US6615853B2 · kind B2 · utility
9Cited by
14References
18Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 3, 2001 |
| Grant date | Sep 9, 2003 |
| Priority date | — |
| Expiry date | Jan 3, 2021 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA47L15/4204
- WIPO fieldFurniture, games
- WIPO sectorOther fields
Abstract
A fine filter assembly for a dishwasher includes a filter body, a filter screen coupled to the body; and a pressure relief tube. The pressure relief tube includes a substantially vertical portion having an open top for regulating pressure conditions in the filter body, thereby forming a standpipe that regulates pressure in the filter body. A column of fluid in the relief tube balances the operating pressure in the fine filter assembly. Pressure may be regulated in the fine filter assembly up to a maximum pressure determined by the height of the vertical portion of the tube.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.