Issued Patents All Time
Showing 1–15 of 15 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5471377 | Process for controlling a power supply which supplies power to an electrostatic filter in which secondary circuit states are determined based on measured primary circuit values and in which short circuits are detected | Gerhard Donig, Roland Humpfner, Norbert Grass, Hans-Joachim Knaak, Helmut Schummer | 1995-11-28 |
| 4873620 | Voltage supply with recovery protection for a thyristor | Helmut Schummer, Gerhard Donig, Walter Schmidt | 1989-10-10 |
| 4808200 | Electrostatic precipitator power supply | Richard Dallhammer, Walter Schmidt, Helmut Schummer | 1989-02-28 |
| 4779182 | Power supply for an electrostatic filter | Hermann Mickal, Hartmut Gaul, Walter Schmidt, Helmut Schummer | 1988-10-18 |
| 4690694 | Method of automatically controlling an electrostatic precipitator | Franz Alig, Heinrich Bocker, Helmut Schummer | 1987-09-01 |
| 4670829 | Method and apparatus for supplying an electrostatic precipitator with high voltage pulses | Richard Dallhammer, Gerhard Donig, Hartmut Gaul, Walter Schmidt, Helmut Schummer | 1987-06-02 |
| 4521226 | Method of automatically controlling a dust-collecting plant | Franz Alig, Horst Hemmerling | 1985-06-04 |
| 4433281 | Method for detecting breakdowns in an electrostatic filter | Helmut Herklotz, Gunter Mehler, Helmut Schummer, Horst Daar, Walter Schmidt +1 more | 1984-02-21 |
| 4432061 | System for controlling the voltage of an electrofilter | Helmut Herklotz, Gunter Mehler, Helmut Schummer, Horst Daar, Walter Schmidt +1 more | 1984-02-14 |
| 4432062 | Method for optimizing the knock frequency of an electrofilter system | Helmut Herklotz, Gunter Mehler, Helmut Schummer, Horst Daar, Walter Schmidt +1 more | 1984-02-14 |
| 4416671 | Method of optimizing the collection efficiency of an electrostatic precipitator | Wenzel Von Jordan | 1983-11-22 |
| 4413225 | Method of operating an electrostatic precipitator | Gerhard Donig, Walter Schmidt, Helmut Schummer | 1983-11-01 |
| 4382805 | System for automatically controlling the breakdown voltage limit of an electrofilter | Helmut Herklotz, Gunter Mehler, Helmut Schummer, Horst Daar, Walter Schmidt +1 more | 1983-05-10 |
| 4354860 | Method for determining the filter current limit of an electrostatic filter | Helmut Herklotz, Gunter Mehler, Helmut Schummer, Horst Daar, Walter Schmidt +1 more | 1982-10-19 |
| 4354152 | Method for automatic control of the voltage of an electrostatic filter at the breakdown limit | Helmut Herklotz, Gunter Mehler, Helmut Schummer, Horst Daar, Walter Schmidt +1 more | 1982-10-12 |