Issued Patents All Time
Showing 1–17 of 17 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6952932 | Aftercooler bypass means for a locomotive compressed air system | Brian L. Cunkelman, Daniel Wagner, Roger Drummond | 2005-10-11 |
| 6659739 | Locomotive air compressor with an electric motor supported by an external bearing | James Varney, Brian L. Cunkelman | 2003-12-09 |
| 6644934 | Aftercooler bypass means for a locomotive compressed air system | Brian L. Cunkelman, Daniel Wagner, Roger Drummond | 2003-11-11 |
| 6447267 | Locomotive air compressor with motor supported by outside bearing | James Varney, Brian L. Cunkelman | 2002-09-10 |
| 6419465 | Shaft extension for use with outboard bearing designs | Roger Drummond, Ronald Shaffer, James Varney, Brian L. Cunkelman | 2002-07-16 |
| 6376950 | Combined bearing plate and stator frame casting | James Varney, Ronald Shaffer, Brian L. Cunkelman | 2002-04-23 |
| 6364635 | Endplate for use with outboard bearing designs | Roger Drummond, Ronald Shaffer, James Varney, Brian L. Cunkelman | 2002-04-02 |
| 6287085 | Rapid unloader retrofits | Ronald Shaffer | 2001-09-11 |
| 6283725 | Aftercooler bypass means for a locomotive compressed air system | Brian L. Cunkelman, Daniel Wagner, Roger Drummond | 2001-09-04 |
| 6203285 | Compressor intercooler unloader arrangement | Daniel Wagner, Brian L. Cunkelman | 2001-03-20 |
| 6026587 | Intercooler blowdown valve | Brian L. Cunkelman, Daniel Wagner | 2000-02-22 |
| 6021867 | Air compressor bearing lubrication | Julie A. Krawczyk, Roger Drummond, Brian L. Cunkelman, Daniel Wagner | 2000-02-08 |
| 5964449 | Brake valve latch with enhanced lubricity | George Drahusz, Jr. | 1999-10-12 |
| 5894881 | Fan powered aftercooler and control circuit for locomotive compressors having no integral aftercooler | Daniel Wagner, Brian L. Cunkelman | 1999-04-20 |
| 5885060 | Thermostatically controlled intercooler system for a multiple stage compressor and method | Brian L. Cunkelman, Daniel Wagner, Roger Drummond | 1999-03-23 |
| 5711206 | Piston and cylinder assembly for minimizing water blow-by in an air compressor | — | 1998-01-27 |
| 5106270 | Air-cooled air compressor | Daniel Wagner, Richard S. Patterson, Dale A. Chovan | 1992-04-21 |