Method and device for surface treatment with a plasma at atmospheric pressure
US6299948A · kind A · utility
22Cited by
6References
13Claims
0Family size
Assignees
Inventors
Key dates
| Filing date | Apr 9, 1999 |
| Grant date | Oct 9, 2001 |
| Priority date | — |
| Expiry date | Apr 9, 2019 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01J2237/0206
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
Method for creating an electric discharge in an initial gas which is at atmospheric pressure and lies between two exciting electrodes, comprising applying a supply voltage to the two electrodes which is an AC voltage whose amplitude and frequency are adapted in order to maintain (1) at least a portion of the components of the gas in the excited state, and/or (2) the presence of electrons, between two successive half-cycles of the supply voltage.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.