Laundry appliance
US7021089B2 · kind B2 · utility
0Cited by
46References
26Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jul 3, 2001 |
| Grant date | Apr 4, 2006 |
| Priority date | — |
| Expiry date | Feb 5, 2022 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD06F23/02
- WIPO fieldOther consumer goods
- WIPO sectorOther fields
Abstract
A laundry appliance such as a washing machine includes an outer housing and a drum rotatably mounted therein. The drum has an inner wall and an outer wall separate from the inner wall, the inner and outer walls being perforated to allow washing liquid to flow into and out of the drum via the perforations. The area of the perforations per unit area of the outer wall is greater than the area of the perforations per unit area of the inner wall.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.