Issued Patents 1997
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5683551 | Apparatus and method for sectional pulp introduction to a papermaking machine headbox | Helmut Heinzmann, Wolfgang Ruf | 1997-11-04 |
| 5670023 | Press of a paper machine for thin papers | Karl Steiner, Rui Goncalves, Christian Schiel | 1997-09-23 |
| 5649371 | Dry unit of a dry end of a machine for producing material webs | Hans Loser, Thomas Elenz, Helmut Konecsny | 1997-07-22 |
| 5635033 | Paper machine for the manufacture of a multi-layer paper web | Udo Grossmann, Dieter Egelhof | 1997-06-03 |
| 5622603 | Influencing the jet velocity in the multilayer headbox | Ulrich Begemann, Dieter Egelhof, Wolfgang Ruf, Helmut Heinzmann, Hans-Peter Arledter | 1997-04-22 |
| 5607555 | Paper machine forming section for producing a multilayer paper web | Udo Grossmann, Dieter Egelhof | 1997-03-04 |
| 5599428 | Headbox nozzle with heavy end convergence | Helmut Heinzmann, Wolfgang Ruf, Dieter Egelhof, Volker Schmidt-Rohr | 1997-02-04 |