| 9278362 |
Fractal orifice plate |
Grant A. Gelven |
2016-03-08 |
| 6524362 |
Method of melting fine grained direct reduced iron in an electric arc furnace |
Heinz Eichberger, Siegfried Schimo, Michael Stroeder |
2003-02-25 |
| 5465942 |
Tuyere arrangement for the introduction of agents into a molten bath and method of operating such a tuyere arrangement |
Georg Raidl, Walter Schmelzer |
1995-11-14 |
| 5451246 |
Process and device for heating and melting lumps of sponge iron |
— |
1995-09-19 |
| 5403378 |
Method and apparatus for protecting an injection device disposed in a hot blast conduit of a blast furnace |
Ralph Weber |
1995-04-04 |
| 5371759 |
D.C. furnace with a hearth electrode, hearth electrode and electrode block, as well as process for operating said furnace |
Emil Elsner |
1994-12-06 |
| 5201941 |
Process for introducing additive substances which are capable of flow into a metallurgical vessel and a vessel for that process |
— |
1993-04-13 |
| 4881972 |
Process for feeding heat energy into a molten metal bath |
Ralph Weber |
1989-11-21 |
| 4736930 |
Closure apparatus for a tap hole |
Ralph Weber |
1988-04-12 |
| 4687440 |
Apparatus for heating charging material |
— |
1987-08-18 |
| 4555266 |
Method and apparatus for treating liquid metal in a vessel |
— |
1985-11-26 |
| 4553528 |
Free-standing stove and fireplace apparatus |
— |
1985-11-19 |
| 4424955 |
Apparatus for treating liquid metal in a vessel |
— |
1984-01-10 |
| 4401466 |
Process for protection of nozzles and refractory lining of a vessel for refining molten metal |
Dalton Nose |
1983-08-30 |
| 4396178 |
Open-hearth furnace |
— |
1983-08-02 |
| 4389043 |
Metallurgical melting and refining unit |
Ralph Weber |
1983-06-21 |
| 4347079 |
Method of operating an open-hearth furnace |
— |
1982-08-31 |
| 4254756 |
Fireplace apparatus |
— |
1981-03-10 |