Vacuum cleaner
US10588472B2 · kind B2 · utility
1Cited by
1References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 28, 2017 |
| Grant date | Mar 17, 2020 |
| Priority date | — |
| Expiry date | Jul 6, 2038 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA47L2201/00
- WIPO fieldFurniture, games
- WIPO sectorOther fields
Abstract
Disclosed herein is a vacuum cleaner including a brush to rotate and collect foreign materials on the floor, and a grinder to grind the foreign materials collected through the brush. Since the hair-like foreign materials wound around the brush are grinded and cut by the grinders, a cleaning cycle of the brush can be extended.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.