Issued Patents All Time
Showing 1–18 of 18 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9982799 | Hydraulic assembly for a mining system | James Clyde Hassell | 2018-05-29 |
| 8450004 | Intrinsically-safe battery power supply for underground mining | Norbert Schwarz, Jörg Wagener | 2013-05-28 |
| 7872846 | Protective circuit for intrinsically safe electro-magnetic actuators, and protective circuit for intrinsically safe energy supply systems | Achim Sondermann | 2011-01-18 |
| 7643262 | Protection circuit for intrinsically safe electro-magnetic actuators and a protection circuit for intrinsically safe energy supply systems | Markus Lenzing, Jeff Travis, Dan Ferguson | 2010-01-05 |
| 7489216 | Housing cover for switching solenoid housing | Michael Dettmers, Sebastian Mundry, Ulrich Ballauf | 2009-02-10 |
| 7238055 | Individual controller for shield support frames | Sebastian Mundry, Jurgen Tschope, Reiner Frank | 2007-07-03 |
| 7239498 | Mining solenoid | Hans-Udo Rheiner | 2007-07-03 |
| 7177709 | Controller for underground mining | Ferdinand Uhlendorf, Wilfried Weigel, Johannes Wesselmann, Jurgen Tschope | 2007-02-13 |
| 7127885 | Assembly for use in underground mining | Sebastian Mundry, Werner Reinelt, Franz-Heinrich Suilmann, Patrick Hantke, Torsten Boldt +2 more | 2006-10-31 |
| 7040174 | Pressure cell device for measuring hydraulic pressures | Sebastian Mundry, Reiner Frank, Jurgen Tschope | 2006-05-09 |
| 6985345 | Method and a device for operating an electro-magnet on an intrinsically safe direct current circuit | Hemut Hermann, Hans-Udo Rheiner | 2006-01-10 |
| 6864673 | Method and circuit arrangement for measuring earth leakages in intrinsically safe current feeds | Emmanuel Charruau, Helmut Hermann | 2005-03-08 |
| 6779776 | Intrinsically safe electrically magnetically operated hydraulic valve | Franz-Heinrich Suilmann, Michael Dettmers, Hans-Udo Rheiner | 2004-08-24 |
| 6774537 | Warning tone transmitter | Jorg Wagner, Emmanuel Charruau, Helmut Hermann | 2004-08-10 |
| 6029799 | Method for controlling drives of conveying machinery | Wilfried Weigel, Arno Breimhorst | 2000-02-29 |
| 6008605 | Method for determining the active power of asynchronous electric motors | Wilfried Weigel, Arno Breimhorst, Martin Eickhoff | 1999-12-28 |
| 5641058 | Method and a device for tensioning endless drive belts | Gerhard Merten, Bernd-Christian Pago | 1997-06-24 |
| 5513902 | Driving system for driving flexible elongate members, such as chains or scraper-chain assemblies, in mineral mining installations and method of operating | Bernd-Christian Pago, Bernhard Voss, Martin Eickhoff, Arno Breimhost | 1996-05-07 |