Issued Patents All Time
Showing 26–43 of 43 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5127557 | Shut-off and control valve for use in continuous casting of a thin strip or slab | — | 1992-07-07 |
| 5121860 | Shut-off and control valve for use in continuous casting of a thin strip or slab | — | 1992-06-16 |
| 5106106 | Sealing structure for use in guiding molten metal from a metallurgical vessel and a seal thereof | Hans Rothfuss | 1992-04-21 |
| 5083688 | Rotary valve for a metallurgical vessel and rotor and stator therefor | Ernst Luhrsen, Ullrich Hintzen | 1992-01-28 |
| 5056762 | Apparatus for mounting a gas washing sink in a centered manner in a perforated brick | Hans Rothfuss, Peter Keutgen, Josef Seeger, Manfred Winkelmann, Herbert Metzger | 1991-10-15 |
| 5054664 | Inductively heatable refractory member, inductive coil employable therewith, and process for use thereof | — | 1991-10-08 |
| 5052597 | Inductively heatable refractory member, inductive coil employable therewith, and process for use thereof | — | 1991-10-01 |
| 5041315 | Flexible ceramic member and method of production thereof | Ralph Searle, Hans Leistner, Ibrahim Mentesh, Edward Levadnuk | 1991-08-20 |
| 5037017 | Horizontal or vertical rotary valve for a metallurgical vessel | Ernst Luhrsen, Ullrich Hintzen | 1991-08-06 |
| 5007621 | Apparatus for mounting a gas washing sink in a centered manner in perforated brick | Hans Rothfuss, Peter Keutgen, Josef Seeger, Manfred Winkelmann, Herbert Metzger | 1991-04-16 |
| 4984769 | Tap spout for metallurgical vessels and method of repairing | Axel Eschner, Wilhelm Langenfeld, Manfred Oberbach, Hans Rothfuss, Dieter Stusser | 1991-01-15 |
| 4978108 | Gas washing sink without integral closure member | Hans Rothfuss, Peter Keutgen, Josef Seeger, Manfred Winkelmann, Herbert Metzger | 1990-12-18 |
| 4971295 | Safety-type gas washing sink having improved heat dissipation properties | Hans Rothfuss, Manfred Winkelmann | 1990-11-20 |
| 4966314 | Self-sealing refractory parts of a regulating device for regulating the flow of molten metal from a metallurgical vessel | Jose Gimpera | 1990-10-30 |
| 4949886 | Horizontal or vertical rotary valve for a metallurgical vessel | Ernst Luhrsen, Ullrich Hintzen | 1990-08-21 |
| 4913324 | Rotary valve for a metallurgical vessel and rotor and stator therefor | Ernst Luhrsen, Ullrich Hintzen | 1990-04-03 |
| 4717128 | Refractory plate assembly including wear and erosion resistant insert surrounded by plural component base structure | Jurgen Plath, Ernst Luhrsen | 1988-01-05 |
| 4623130 | Refractory member formed of fiber material for use in sliding closure unit | Axel Eschner, Hermann Leupold | 1986-11-18 |