Multi dust-collecting apparatus
US7547338B2 · kind B2 · utility
188Cited by
4References
10Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 23, 2005 |
| Grant date | Jun 16, 2009 |
| Priority date | — |
| Expiry date | Jun 12, 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 is provided. The apparatus includes a dust-collecting unit having an air guide member to separate dirt particles from drawn-in air by using a gravity and an inertia and a filter member to remove dirt particles from the discharged air. The apparatus also includes a plurality of cyclones to swirl the air discharged from the dust-collecting unit and separate minute dirt particles from the air by using a centrifugal force.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.