Issued Patents 1997
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5694961 | Device and method for changing the flow resistance of a fluid flow control device | Ulrich Begemann, Wolfgang Ruf | 1997-12-09 |
| 5683551 | Apparatus and method for sectional pulp introduction to a papermaking machine headbox | Albrecht Meinecke, Wolfgang Ruf | 1997-11-04 |
| 5639352 | Headbox lamellae and method for reducing turbulence thereabout | Wolfgang Ruf, Ulrich Begemann | 1997-06-17 |
| 5622603 | Influencing the jet velocity in the multilayer headbox | Ulrich Begemann, Albrecht Meinecke, Dieter Egelhof, Wolfgang Ruf, Hans-Peter Arledter | 1997-04-22 |
| 5603807 | Paper machine headbox with longitudinally shiftable contoured wall | — | 1997-02-18 |
| 5599428 | Headbox nozzle with heavy end convergence | Albrecht Meinecke, Wolfgang Ruf, Dieter Egelhof, Volker Schmidt-Rohr | 1997-02-04 |