Vacuum cleaner with a plurality of cyclonic cleaning stages
US7887612B2 · kind B2 · utility
187Cited by
34References
22Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Mar 8, 2007 |
| Grant date | Feb 15, 2011 |
| Priority date | — |
| Expiry date | Sep 19, 2028 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S55/03
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A portable appliance comprises a dirt inlet, first and second cyclonic stages wherein each cyclonic stage comprises a plurality of cyclones in parallel and the second cyclonic stage is downstream from the first cyclonic stage and a fluid flow motor.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.