Issued Patents All Time
Showing 1–25 of 25 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7740421 | Arrangement for the admission of pressurized water to spray systems | Franz-Heinrich Suilmann, Werner Reinelt, Sebastian Mundry | 2010-06-22 |
| 7489216 | Housing cover for switching solenoid housing | Sebastian Mundry, Jens Titschert, Ulrich Ballauf | 2009-02-10 |
| 7428861 | Valve for hydraulic props of shield-type support frames, and shield-type support frame | Bernd Peters | 2008-09-30 |
| 7237983 | Hydraulic shield support | Franz-Heinrich Suilmann, Friedrich Wilhelm Dannehl, Werner Reinelt | 2007-07-03 |
| 6779776 | Intrinsically safe electrically magnetically operated hydraulic valve | Franz-Heinrich Suilmann, Jens Titschert, Hans-Udo Rheiner | 2004-08-24 |
| 6616122 | Electromagnet switching device | Wolfgang Kobow | 2003-09-09 |
| 6609539 | Hydraulically operated directional control valve | Werner Reinelt, Wolfgang Kobow | 2003-08-26 |
| 6481933 | Powered support frame for large seam thicknesses with controlled gap sealing plates | Ulrich Hilker | 2002-11-19 |
| 6398181 | Valve arrangement | Wolfgang Kobow, Werner Reinelt | 2002-06-04 |
| 6073654 | Hydraulically trippable check valve for underground mine support hydraulics | Wolfgang Kobow, Werner Reinelt | 2000-06-13 |
| 5427142 | Valve device for use in electro-hydraulic control systems of mining installations | Bernd Peters | 1995-06-27 |
| 5159872 | Valve units for use in hydraulic control systems of mining equipment | Bernd Peters | 1992-11-03 |
| 5157947 | Balanced hydraulic valve devices | Walter Weirich, Reiner Stich | 1992-10-27 |
| 5060556 | Arrangement for emergency operation of hydraulic appliance in an electro-hydraulically controlled mineral mining installation | Walter Weirich, Uwe Trox | 1991-10-29 |
| 4907779 | Electro-magnetically operated valve devices | — | 1990-03-13 |
| 4702148 | Control of the actuation of hydraulic consumers | Willy Kussel, Walter Weirich | 1987-10-27 |
| 4613257 | Hydraulic control arrangement | Walter Weirich | 1986-09-23 |
| 4572709 | Control apparatus | Walter Weirich | 1986-02-25 |
| 4537221 | Hydraulic control devices for use with mining apparatus | Walter Weirich | 1985-08-27 |
| 4534681 | Mine roof supports | Walter Weirich | 1985-08-13 |
| 4440522 | Hydraulic control arrangement for a roof support unit of a mineral mining installation | Walter Weirich | 1984-04-03 |
| 4422807 | Mine roof supports | Walter Weirich, Bernd Peters | 1983-12-27 |
| 4391181 | Hydraulic control systems for mining apparatus | Walter Weirich, Kunibert Becker, Harry Rosenberg | 1983-07-05 |
| 4327628 | Hydraulic roof support control system | Walter Weirich | 1982-05-04 |
| 4247226 | Hydraulic conduit systems for mine installations | Walter Weirich | 1981-01-27 |