Device for separation of waste in a vacuum cleaner
US7326267B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Nov 23, 2004 |
| Grant date | Feb 5, 2008 |
| Priority date | — |
| Expiry date | Jan 5, 2026 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S55/03
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A device for separating and collecting waste entrained by an air flow generated by a suction group in a vacuum cleaner, the device having an air inlet tube opening in a tangential direction into a waste separation chamber, a conduit having a plurality of openings being located in a central part of said chamber, the conduit being in communication with the suction group, and the chamber being connected to a tank for collecting waste. According to the invention, the conduit has inclined walls directed toward the separation chamber, in the direction of circular movement of the air flow in the separation chamber, and the end of each wall has a substantially flat opening that is parallel to the underlying and adjacent conduit. The openings in the conduit are situated in line with the openings in the walls.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.