Vacuum cleaner
US7601188B2 · kind B2 · utility
51Cited by
9References
10Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 2, 2007 |
| Grant date | Oct 13, 2009 |
| Priority date | — |
| Expiry date | Apr 12, 2027 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S55/03
- WIPO fieldFurniture, games
- WIPO sectorOther fields
Abstract
A vacuum cleaner includes at least one cyclone dust separation unit. A cover is formed over the cyclone dust separation unit to attenuate noise generated by the cyclone unit. Dimples or recesses may be formed on the interior of the cover to further attenuate noise. In addition, a noise attenuating material may be inserted between the cyclone dust separation unit and the cover.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.