Plasma torch
US9277636B2 · kind B2 · utility
3Cited by
11References
19Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 12, 2012 |
| Grant date | Mar 1, 2016 |
| Priority date | — |
| Expiry date | Apr 12, 2032 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH05H1/3484
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
To lengthen the service period on DC plasma abatement devices a modified DC plasma torch is provided with an electrically conductive cathode and an electrically conductive anode spaced apart from one another to form a gap therebetween; a metal swirl bush at least partially located within the gap and comprising a channel adapted to permit, in use, a gas to flow through the gap; and a ceramic element interposed between any one or more of: the cathode and the swirl bush; and the anode and the swirl bush.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.