Upright vacuum cleaner
US4446595A · kind A · utility
32Cited by
4References
2Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 2, 1981 |
| Grant date | May 8, 1984 |
| Priority date | — |
| Expiry date | Dec 2, 2001 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA47L9/0477
- WIPO fieldFurniture, games
- WIPO sectorOther fields
Abstract
An upright vacuum cleaner includes a rotary brush 12 disposed at a suction port in a floor nozzle 4 and capable of being rotated or stopped by shifting a motor-driven belt toward a drive pulley 17 or an idle pulley 18. The upright vacuum cleaner can conveniently be used for cleaning flat noncarpeted floors as well as carpeted floors.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.