Issued Patents All Time
Showing 1–11 of 11 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4905546 | Twist-proof mechanical connecting assembly | Erich Katscher, Alexander Hummeler, Gunter Rabe, Harald Hegenberger | 1990-03-06 |
| 4698474 | Welding tongs for connecting two abutting pipe ends by arc welding | Siegfried Gügel, Dieter Pellkofer | 1987-10-06 |
| 4689863 | Fixture for machining the cutting line of a pipe | Robert Weber, Roland Bieselt, Helmut Mechtold | 1987-09-01 |
| 4657450 | Machining tool for pipes | Georg Gebald | 1987-04-14 |
| 4639351 | Repair device for a reactor pressure vessel | Erich Katscher, Stefan Ring | 1987-01-27 |
| 4617444 | Burner for wig welding | Gerhard Engelhard, Dieter Pellkofer, Jürgen Böhm | 1986-10-14 |
| 4601133 | Manipulator head with grinding device for pipes or pipelines | Georg Gebald, Heinz Rohrich, Clemens Dippold | 1986-07-22 |
| 4598738 | Tube closing device, especially for heat-exchanger tubes | Robert Weber | 1986-07-08 |
| 4577795 | Device for overlay-welding pipes bends | Karl-Heinz Langhammer, Dieter Pellkofer, Wolfgang Nahr | 1986-03-25 |
| 4473921 | Cleaning device for the internal peripheral surfaces of pipelines or hollow cylindrical vessels, especially for manipulators for the interior of pipes | Robert Weber | 1984-10-02 |
| 4460920 | Automatically traveling tube-interior manipulator for remotely controlled transportation of testing devices and tools along given feedpaths, preferably for nuclear reactor installations | Robert Weber, Alois Koppl, Erich Kohlert, Otto Muller | 1984-07-17 |