| 5098166 |
Device for feeding fluid for the spraying of picks in a shearing drum |
Bernhard Ebner, Otto Krassnitzer, Alfred Zitz |
1992-03-24 |
| 4735458 |
Device for intermittently subjecting axially shiftable bits of a cutting head to the action of pressurized fluids |
Herwig Wrulich, Wilfried Maier |
1988-04-05 |
| 4585275 |
Process for spraying the bits and/or the facing with pressurized liquid as well as apparatus for performing this process |
Herwig Wrulich, Alfred Zitz, Otto Schetina |
1986-04-29 |
| 4577892 |
Arrangement for supplying a pressurized liquid to a rotating machine part |
Herwig Wrulich, Wilfried Maier |
1986-03-25 |
| 4572583 |
Cutting head for drift advancing machines and process for producing same |
Gottfried Traumumiller, Wilfried Maier, Herwig Wrulich |
1986-02-25 |
| 4568127 |
Cutting head for drift advancing machines |
Gottfried Traumuller, Wilfried Maier, Herwig Wrulich |
1986-02-04 |
| 4552263 |
Drive arrangement for the loading arms of a loading ramp for heading machines or longwall shearing machines |
Arnulf Kissich, Alfred Zitz, Gerhard Steinbrucker |
1985-11-12 |