Method and arrangement for stabilizing an arc between an anode and a cathode particularly for vacuum coating devices
US5387326A · kind A · utility
24Cited by
5References
21Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 21, 1993 |
| Grant date | Feb 7, 1995 |
| Priority date | — |
| Expiry date | Jan 21, 2013 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH05H1/50
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A shield to limit an electric arc discharge between an anode and a cathode to a designated portion of the cathode surface is fashioned in the shape of a limiting ring with good electrically conducting surface, e.g., copper or aluminum, surrounding this surface. Application of the invention, especially with heavy current arc discharges causes the tracing point of the discharge to move stochastically back and forth on the cathode.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.