Vacuum cleaner
US7987551B2 · kind B2 · utility
1Cited by
44References
17Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 20, 2009 |
| Grant date | Aug 2, 2011 |
| Priority date | — |
| Expiry date | Mar 20, 2029 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA47L9/1683
- WIPO fieldFurniture, games
- WIPO sectorOther fields
Abstract
A vacuum cleaner is provided. The vacuum cleaner may include a dust collection container that stores dust, a compression member that is provided in the dust collection container and which is capable of rotating in first and second directions, and a driver that rotates the compression member. The compression member rotates in a first space corresponding to a first angle range and at least a portion of the dust is stored in a second space corresponding to a second angle range.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.