Issued Patents All Time
Showing 1–25 of 27 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5942316 | Multi-layer refractory wear body | Andreas Schuler, Robert W. Sheriff, Martin Wiesel | 1999-08-24 |
| 5657997 | Fixing device for a ceramic sealing plate | — | 1997-08-19 |
| 5429283 | Immersion nozzle formed of separate members | Siegfried Pohl, Karl Baum, Erich Galle | 1995-07-04 |
| 5413744 | Process for inductive heating of ceramic shaped parts | Raimund Bruckner, Ullrich Hintzen, Hans Rothfuss, Albert Ott | 1995-05-09 |
| 5303905 | Refractory ceramic stopper, apparatus for support thereof, and assembly thereof | Siegfried Pohl, Dirk Masurat, Gerd Bohndorf | 1994-04-19 |
| 5190716 | Process for manufacturing and preheating a shaped ceramic part | Raimund Bruckner, Hans Rothfuss, Albert Ott | 1993-03-02 |
| 5173242 | Means and method for forming a sealed connection | Ulrich Schneider | 1992-12-22 |
| 5173199 | Apparatus for use in replacing a worn pouring pipe and for adjusting molten metal flow through a pouring pipe | Raimund Bruckner, Hans Rothfuss, Ullrich Hintzen, Peter Keutgen | 1992-12-22 |
| 5171495 | Immersion nozzles for metal melts | Albert Ott | 1992-12-15 |
| 5106060 | Components for forming a closing and/or regulating apparatus for tapping molten metal from a metallurgical vessel | Ullrich Hintzen, Andreas Schuler | 1992-04-21 |
| 5092500 | Refractory discharge device with separate external reinforcement member | Udo Weber, Albert Ott, Steve Lee | 1992-03-03 |
| 5083688 | Rotary valve for a metallurgical vessel and rotor and stator therefor | Ullrich Hintzen, Raimund Bruckner | 1992-01-28 |
| 5080265 | Apparatus for closing and/or regulating the tapping of molten metal | Ullrich Hintzen, Andreas Schuler | 1992-01-14 |
| 5072864 | Carbon-containing wearable refractory parts | Andreas Schuler, Ullrich Hintzen | 1991-12-17 |
| 5058784 | Closing and/or regulating apparatus for tapping molten metal from a metallurgical vessel | Ulrich Hintzen, Andreas Schuler | 1991-10-22 |
| 5037017 | Horizontal or vertical rotary valve for a metallurgical vessel | Ullrich Hintzen, Raimund Bruckner | 1991-08-06 |
| 5025961 | Refractory shutoff assembly capable of improved emergency closing | Ullrich Hintzen, Andreas Schuler | 1991-06-25 |
| 4994216 | Process of making carbon-bonded refractory shaped articles | Ullrich Hintzen, Heinz Schermer | 1991-02-19 |
| 4949886 | Horizontal or vertical rotary valve for a metallurgical vessel | Ullrich Hintzen, Raimund Bruckner | 1990-08-21 |
| 4923225 | Assembly for connecting a metal member to a ceramic refractory member | Siegfried Pohl, Albert Ott, Wilhelm Parbel, Karl Baum | 1990-05-08 |
| 4913324 | Rotary valve for a metallurgical vessel and rotor and stator therefor | Ullrich Hintzen, Raimund Bruckner | 1990-04-03 |
| 4717128 | Refractory plate assembly including wear and erosion resistant insert surrounded by plural component base structure | Raimund Bruckner, Jurgen Plath | 1988-01-05 |
| 4634685 | Refractory article suitable for casting molten metal | Siegfried Pohl, Peter Jeschke, Ortwin Rave, Martin Kienow, Werner Richter | 1987-01-06 |
| 4508324 | Fastening means for a closure plate on a sliding shutter outlet in a vessel which contains molten metal | Siegfried Pohl, Jurgen Plath | 1985-04-02 |
| 4290589 | Teeming pipe for use at the outlet of a melt container | Heinz Schermer | 1981-09-22 |