Issued Patents All Time
Showing 1–14 of 14 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8237384 | Dynamic braking circuit for a hybrid locomotive | Andrew Tarnow, Frank Wegner Donnelly, Kris Redinger | 2012-08-07 |
| 7940016 | Regenerative braking methods for a hybrid locomotive | Frank Wegner Donnelly, John D. Watson, Andrew Tarnow | 2011-05-10 |
| 6233149 | High power inverter air cooling | Vinod Kumar Singh, Wayne A. Kennedy, Eric J. Wildi | 2001-05-15 |
| 6188822 | Self-supporting fiber optic cable and an apparatus and methods for making the same | Warren Welborn McAlpine, Jeffrey A. Clampitt | 2001-02-13 |
| 6160696 | Modular bus bar and switch assembly for traction inverter | Dimitrios Ioannidis | 2000-12-12 |
| 5262691 | Gate turnoff thyristor control circuit with shorted gate detection | Herbert J. Brown | 1993-11-16 |
| 5253613 | High power AC traction inverter cooling | Ronald F. Griebel | 1993-10-19 |
| 5245495 | Automatic flashover protection for locomotive traction motors | Herbert J. Brown, Myron L. Smith, Edgar T. Balch, Roger Huczko, Joseph A. Laukaitis | 1993-09-14 |
| 5204804 | GTO module with piggyback bypass diode | Stephen T. Radack | 1993-04-20 |
| 5168416 | Automatic flashover protection for locomotive traction motors | Herbert J. Brown, Myron L. Smith, Edgar T. Balch, Roger Huczko, Joseph A. Laukaitis | 1992-12-01 |
| 4904918 | Power conversion system including an improved filter for attenuating harmonics | Ajith K. Kumar, David L. Plette | 1990-02-27 |
| 4284936 | Chopper type propulsion system with low speed electrical braking capability for traction vehicles | Thomas D. Stitt | 1981-08-18 |
| 4284938 | Chopper with adaptive energy commutation | — | 1981-08-18 |
| 4256982 | Electric pulse shaping circuit | — | 1981-03-17 |