Dual-filter electrically enhanced air-filtration apparatus and method
US7815720B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jun 29, 2007 |
| Grant date | Oct 19, 2010 |
| Priority date | — |
| Expiry date | Jun 8, 2028 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S323/903
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A dual-filter electrically enhanced air-filtration apparatus and method are described. One embodiment includes an upstream electrically enhanced filter; a downstream electrically enhanced filter; a first control electrode adjacent to an upstream side of the upstream electrically enhanced filter; a second control electrode adjacent to a downstream side of the downstream electrically enhanced filter; and an ionizing electrode disposed between the upstream and downstream electrically enhanced filters, the ionizing electrode having an electrical potential with respect to the first and second control electrodes. Optional field electrodes may be included to enhance the electric fields associated with the upstream and downstream electrically enhanced filters.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.