| 4742529 |
Three-phase arc furnace |
— |
1988-05-03 |
| 4710607 |
Plasma burner with replaceable consumable electrodes |
Herbert Wilhelmi, Kurt Kegel, Dieter Zollner, Inge Lauterbach-Dammler, Friedrich Rittman |
1987-12-01 |
| 4698825 |
Protective coating of temperature resistant materials for the metal shaft of combination electrodes for the electric steel production |
Franz Schieber, Dieter Zollner, Inge Lauterbach, Konrad Koziol, Christine Zollner |
1987-10-06 |
| 4639928 |
Disc means for an electrode for use in electric arc furnaces |
Claudio Conradty, Dieter Zollner, Inge Lauterbach-Dammler |
1987-01-27 |
| 4532634 |
Electrode for electric arc furnaces |
Inge Lauterbach-Dammler |
1985-07-30 |
| 4531219 |
Electrode assembly for arc furnaces |
Dieter Zollner, Inge Lauterbach-Dammler, Hans Lades, Siegfried Liebel, Hanns-Georg Bauer |
1985-07-23 |
| 4509178 |
Arrangement of an electrode for electric arc furnaces |
Hans Lades, Friedrich Fink, Siegfried Liebel, Inge Lauterbach, Dieter Zollner |
1985-04-02 |