Electrode for electric arc furnaces
US4532634A · kind A · utility
1Cited by
4References
14Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 13, 1983 |
| Grant date | Jul 30, 1985 |
| Priority date | — |
| Expiry date | Sep 13, 2003 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P10/25
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An electrode for arc furnaces, comprising a metallic water-cooled upper section and a consumable, replaceable lower section, interconnected by means of a threaded nipple or the like. At least one light-receiving element is positioned in a zone associated with the interconnection of the cooled metal shaft and the consumable section. A light signal falling on the light-receiving element where the consumable section is in absence, is passed in a suitable manner via a light wave guide to a furnace control which activates a safety system.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.