Multi dust-collecting apparatus
US7547337B2 · kind B2 · utility
112Cited by
2References
15Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 23, 2005 |
| Grant date | Jun 16, 2009 |
| Priority date | — |
| Expiry date | Jun 11, 2027 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S55/03
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A multi dust-collecting apparatus for a vacuum cleaner separating dirt particles from air by taking two steps. The multi dust-collecting apparatus includes a dust-collecting unit to separate dirt particles from the air by using gravity and inertia, and a plurality of cyclones to swirl the air discharged from the dust-collecting unit and separate the dirt particles from the air by using centrifugal force.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.