Agitator drive system with bare floor shifter
US6915544B2 · kind B2 · utility
20Cited by
24References
23Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 19, 2002 |
| Grant date | Jul 12, 2005 |
| Priority date | — |
| Expiry date | Apr 16, 2022 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA47L9/0444
- WIPO fieldFurniture, games
- WIPO sectorOther fields
Abstract
An upright vacuum cleaner includes a housing, a nozzle opening in the housing and a dust collector carried on the housing. A suction fan is also carried on the housing. The suction fan draws air, dirt and debris from a surface to be cleaned through the nozzle opening to the dust collector. The upright vacuum cleaner also includes a first rotary agitator and a second rotary agitator, both carried on the housing. A drive motor carried on the housing drives the first rotary agitator through the belt and pulley assembly. A gear drive assembly drivingly connects the first rotary agitator to the second rotary agitator.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.