Portable air filtration system
US6989051B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 25, 2003 |
| Grant date | Jan 24, 2006 |
| Priority date | — |
| Expiry date | Jan 20, 2024 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB03C3/155
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A portable air filtration system includes a filter housing having an air inlet and an air outlet. The filter housing defines a filtration chamber between the air inlet and the air outlet. The portable air filtration system uses an ionizing mechanism, a filter media, and an electrode to filter air. The ionizing mechanism ionizes particles within the air to a negative charge. The filter media is disposed between the ionizing mechanism and the air outlet for entrapping the particles. The electrode is disposed between the ionizing mechanism and the filter media to establish an electric field. The electric field is established between the ionizing mechanism and the electrode adjacent to the filter media. The electrode is also electrically-connected to ground and to the filter media for dissipating the negative charge of the particles entrapped within the filter media.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.