| 10358770 |
Method for making suspension cable to desired length |
Jeff A. Jensen, Christopher R. Wanasek, Jeffrey Ryan Asman, Randy Tyler Ross, James Leigh Gill +3 more |
2019-07-23 |
| 9702250 |
Power shovel hoist machinery with auxiliary weight box |
Frank R. Szpek, Jr., David T. Bienfang |
2017-07-11 |
| 9506219 |
Support rail and swing gear assembly for a mining vehicle |
David T. Bienfang, Gurbachan S. Bumraw, Philip R. Strydom, Christopher R. Wanasek, Jeanne Yaunke |
2016-11-29 |
| 9394944 |
Thrust rail and swing gear assembly for a mining vehicle |
David T. Bienfang, Gurbachan S. Bumraw, Philip R. Strydom, Christopher R. Wanasek, Jeanne Yaunke |
2016-07-19 |
| 9388689 |
Multi-deck mining vehicle |
David T. Bienfang, Frank R. Szpek, Jr. |
2016-07-12 |
| 9127435 |
Power shovel hoist machinery with auxiliary weight box |
David T. Bienfang, Frank R. Szpek, Jr. |
2015-09-08 |
| 9109612 |
Sealed hydraulic tank system for mining shovel |
Robert Weber, Perry DeCuir |
2015-08-18 |
| 9096992 |
Dipper door assembly |
Richard Hoppens, Jeffrey Klingel, Douglas Maki, Zoran Marjanovic, Kenneth J. Meyer |
2015-08-04 |
| 8997382 |
Dipper door assembly |
Jeffrey Klingel, Kenneth J. Meyer, Zoran Marjanovic, Richard Hoppens, Jamie K. Sherwood +2 more |
2015-04-07 |
| 8992157 |
Hydraulic cylinder with guide bushing for a sliding dipper handle of a power shovel |
— |
2015-03-31 |
| 8991080 |
Dipper door assembly |
Jeffrey Klingel, Douglas Maki, Kenneth J. Meyer, Russell J. Willmann |
2015-03-31 |
| 8966792 |
Machine having dipper actuator system |
David T. Bienfang, Frank R. Szpek, Jr. |
2015-03-03 |
| 8959805 |
Machine having dipper actuator system |
David T. Bienfang, Frank R. Szpek, Jr. |
2015-02-24 |
| 8920104 |
Hydraulic crowd system for electric mining shovel |
Robert Weber, Perry DeCuir |
2014-12-30 |
| 7174826 |
Hydraulic crowd control mechanism for a mining shovel |
Timothy Robert Kerrigan, Matthew Brueck, Jeanne Yaunke, Michael W. Haws, Michael G. Onsager |
2007-02-13 |
| 7096610 |
Dipper assembly including a closure mechanism |
— |
2006-08-29 |
| 7024805 |
Dragline excavating machine with direct drive hoist and drag drums |
Michael G. Onsager, Walter Koellner |
2006-04-11 |
| 6752282 |
Swing drive assembly |
Robert F. Brown, Gregory N. Feld |
2004-06-22 |
| 5956915 |
Tubular drill mast |
James P. Piper, Kenneth Hammel, Frank R. Szpek, Jr. |
1999-09-28 |
| 5931238 |
Apparatus for storing and handling drill pipe |
Calvin E. Stuckemeyer |
1999-08-03 |
| 4718729 |
Material clearing and piling device |
Melvin W. Kraschnewski |
1988-01-12 |
| 4702524 |
Continuous mining machine |
Phillip Wade Mork, Melvin W. Kraschnewski |
1987-10-27 |
