Vacuum cleaner
US11517160B2 · kind B2 · utility
0Cited by
8References
13Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 13, 2020 |
| Grant date | Dec 6, 2022 |
| Priority date | — |
| Expiry date | Aug 13, 2040 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA47L9/0411
- WIPO fieldOther consumer goods
- WIPO sectorOther fields
Abstract
A vacuum cleaner including: a cleaner main body configured to generate suction force; and a suctioner including a head having a suction inlet to suck dust by the suction force and a brush drum rotatably provided in the suction inlet to sweep dust on a floor. The brush drum includes convex portions projected from an outer circumferential surface of the brush drum and spirally extended in a rotational axial direction of the brush drum.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.