Apparatus for treating the inside surface of an article with an electric glow discharge
US4598663A · kind A · utility
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4References
9Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 10, 1984 |
| Grant date | Jul 8, 1986 |
| Priority date | — |
| Expiry date | May 10, 2004 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH05B7/16
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
To be able to treat the inside surface of metallic tubes by means of an electric glow discharge at pressures lower than heretofore in order to heat or coat such a surface, for example, an auxiliary electrode is positioned inside an article to be treated such as a tube extending close to the tube wall and parallel to the tube axis, with the auxiliary electrode and the tube being rotatable relative to each other. The apparatus and method are primarily for coating the inside of tubes.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.