Balanced flow vacuum cleaner conduits
US6243916A · kind A · utility
23Cited by
17References
36Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 6, 1999 |
| Grant date | Jun 12, 2001 |
| Priority date | — |
| Expiry date | Apr 6, 2019 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA47L5/28
- WIPO fieldFurniture, games
- WIPO sectorOther fields
Abstract
An apparatus and method for transporting a flow of air and particulates through a vacuum cleaner. The apparatus can include an airflow propulsion device that draws the flow through an intake aperture and propels the flow through two upwardly-extending conduits toward a filter element housed in a filter housing. The conduits can have generally smooth internal walls and a combined flow area less than the flow area of the intake aperture to accelerate the flow upwardly toward the filter element.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.