Issued Patents All Time
Showing 1–21 of 21 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4722021 | Safety circuit for hand tools, and method for safe operation thereof | Friedrich Hornung, Martin Gerschner, Klaus Gunther | 1988-01-26 |
| 4673318 | Hand tool machine, in particular drilling machine | Friedrich Hornung, Kurt Paule | 1987-06-16 |
| 4622779 | Method and apparatus for speed control of a grinder | — | 1986-11-18 |
| 4611742 | Electromagnetically operated driving tool with air damper | Werner Rieker | 1986-09-16 |
| 4562389 | Automatic screwdriver or torquing tool control system | Wolfgang Jundt, Gunter Schaal, Hans-Joachim Vogt, Steffen Wunsch | 1985-12-31 |
| 4545121 | Hand-held power tool with circular-disk-shaped tool | Gerhard Armbruster, Eberhard Seidel | 1985-10-08 |
| 4540318 | Rotary electrical tool with speed control, especially drill | Friedrich Hornung | 1985-09-10 |
| 4515303 | Electric hammering apparatus with air-cushioned armature | Werner Rieker, Rainer Thaler, Klaus Klingenstein | 1985-05-07 |
| 4516045 | Electric power machine with protection against overspeed | Erich Borst, Manfred Stabler | 1985-05-07 |
| 4497354 | Low noise planing machine, particularly hand planer | Martin E. Kummer, Uwe Krieg, Wolfgang Jundt, Werner Rieker, Gunter Schaal | 1985-02-05 |
| 4493377 | Electronic two-hand safety system for power tools | Klaus Gunther, Friedrich Hornung, Kurt Paule | 1985-01-15 |
| 4463293 | Method and apparatus for shutting off a power screwdriver | Friedrich Hornung, Wolfgang Jundt, Hans-Joachim Vogt, Steffen Wunsch | 1984-07-31 |
| 4458565 | Torque limiting power screwdriver | Gunter Zilly, Erich Borst, Brigitte Hertell, Heinz Walz, Steffen Wunsch | 1984-07-10 |
| 4434586 | Machine tool, especially a hand-held power tool with a turnable clamping element for clamping a tool on the tool spindle | Thomas Müller, Manfred Stabler | 1984-03-06 |
| 4392093 | Electronic control and regulating system | Kurt Paule, Martin Gerschner, Friedrich Hornung | 1983-07-05 |
| 4382458 | Planing tool | Gerhard Armbruster, Klaus-Dieter Jaspert | 1983-05-10 |
| 4360048 | Power driven, hand operated plane | Gerhard Armbruster, Werner Neubert, Peter Stierle | 1982-11-23 |
| 4343115 | Protecting hood for a motor-driven hand tool | Manfred Stabler | 1982-08-10 |
| 4343214 | Arrangement for fastening a circular saw blade on a trunnion axially projecting from a drive shaft | — | 1982-08-10 |
| 4219747 | Mechanical apparatus for activating no load current limiting circuits in electric motors | Friedrich Hornung | 1980-08-26 |
| 4209719 | Tachogenerator for rotating machinery | — | 1980-06-24 |