Issued Patents All Time
Showing 1–25 of 33 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9272407 | Percussion tool having cooling of equipment components | Michael Fischer, Wolfgang Hausler, Rudolf Berger, Christian Littek, Helmut Braun +1 more | 2016-03-01 |
| 8721218 | Vibrating plate with unbalanced shafts arranged at an angle | — | 2014-05-13 |
| 8602680 | Soil compacting device with automatic or operator-intuitive adjustment of the advance vector | Michael Fischer, Oliver Kolmar, Martin Awrath, Walter Unverdorben, Hermann Schennach | 2013-12-10 |
| 8534377 | Percussive mechanism with an electrodynamic linear drive | Rudolf Berger, Wolfgang Schmid | 2013-09-17 |
| 8057124 | Method and device for measuring soil parameters by means of compaction machines | Stefan Wagner, Dittmar Lange | 2011-11-15 |
| 8047302 | Drilling and/or striking hammer with a lubricating device | Rudolf Berger | 2011-11-01 |
| 8047742 | Tamping device | Georg Sick, Oliver Kolmar, Andreas Bartl | 2011-11-01 |
| 7753024 | Oil supply for an internal combustion engine | Wolfgang Hausler, Georg Sick | 2010-07-13 |
| 7674069 | Concrete finishing trowel | — | 2010-03-09 |
| 7527107 | Working tool with damped handle | Rudolf Berger, Wolfgang Schmid | 2009-05-05 |
| 6849342 | Metal-ceramic composite material body and method for producing the same | Klaus Czerwinski, Iris Postler, Bernd Reinsch | 2005-02-01 |
| 5648620 | Sliding surface bearing | Georg Sick, Eduard Kohler, Herbert Moding, Jurgen Niehues | 1997-07-15 |
| 5425047 | Closed induction furnace with a tilting apparatus | Ulrich Betz, Hans-Johann Kemmer, Martin Lorke, Klaus Pfeuffer | 1995-06-13 |
| 5272718 | Method and apparatus for forming a stream of molten material | Georg Sick, Michael Hohmann | 1993-12-21 |
| 5271033 | Induction furnace for melting and casting substances in a nonreactive atmosphere | Daniel Bethge, Alfred Henn, Michael Schaefer, Hans-Johann Kemmer | 1993-12-14 |
| 5247538 | Melting furnace with manipulator for closing crucibles vacuum-tight | — | 1993-09-21 |
| 5156202 | Process and permanent mold for mold-casting electrically conductive material | Georg Sick | 1992-10-20 |
| 5109389 | Apparatus for generating an inductive heating field which interacts with metallic stock in a crucible | — | 1992-04-28 |
| 5021299 | Composite casting for adding lithium to molten alloys | Hartwig Rupp | 1991-06-04 |
| 5012488 | Crucible for inductive heating | — | 1991-04-30 |
| 4993690 | Electroslag remelting plant including an ingot mold and a hood | Wolfram Diemar, Heiko Spengemann, Heinz Kohnert, Leo Emiljanow, Helmut Grof | 1991-02-19 |
| 4919187 | Method for making additions to molten alloys and bodies molded from alloying metals | Hartwig Rupp | 1990-04-24 |
| 4881239 | Fault detection during remelt of electrodes into blocks | Felix Muller, Gerhard Bruckmann, Alok Choudhury | 1989-11-14 |
| 4797897 | Apparatus for controlling the distance of a melting electrode from the surface of the melted material in a vacuum arc furnace | Friedrich-Werner Thomas | 1989-01-10 |
| 4775981 | Melting furnace with weight-related control of the consumable electrode | Heinz Kohnert, Rudolf Randa | 1988-10-04 |