Ion generation method and apparatus
US7057130B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 8, 2004 |
| Grant date | Jun 6, 2006 |
| Priority date | — |
| Expiry date | Apr 8, 2024 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01T23/00
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
Method and apparatus for generating positive and negative ions include electrodes that are spaced apart by a gap and that are supplied alternating ionizing voltage at a frequency which causes the generated ions to move within the gap between electrodes and exhibit a resident time in transit that accumulates the ions substantially within the central region of the gap. An electrostatic field, or a flowing stream of air or other gas passing through the gap, transports the generated ions from within the gap. Self-balancing of generated positive and negative ions is accomplished using capacitive coupling of the ionizing voltage to at least one of the electrodes disposed about the gap.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.