Recirculating type cleaner
US5613269A · kind A · utility
112Cited by
9References
3Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Apr 4, 1995 |
| Grant date | Mar 25, 1997 |
| Priority date | — |
| Expiry date | Apr 4, 2015 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA47L9/08
- WIPO fieldFurniture, games
- WIPO sectorOther fields
Abstract
In a recirculating type cleaner, a jet nozzle is provided within a dust collecting head formed in the bottom face of the housing, the after-flow air from the suction fan is supplied through a recirculating tube to the jet nozzle. In the after-flow of the fan is provided a branch valve which is controlled by a controller to set the air recircuration ratio at a desired value suitable for any cleaning mode.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.