Issued Patents All Time
Showing 351–375 of 391 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6075717 | PWM rectifier control with switching losses equally distributed among multiple switching devices | Allen Barr Plunkett | 2000-06-13 |
| 6043996 | Method and apparatus for reducing monotonic audible noise in a power conversion system | — | 2000-03-28 |
| 6028402 | Automatic rail characterization for adhesion system evaluation for AC locomotives | Admir Mesalic, Bret Dwayne Worden | 2000-02-22 |
| 6023137 | Use of traction inverter for supplying power for non-traction applications | Ronald F. Griebel | 2000-02-08 |
| 5998880 | AC locomotive operation without DC current sensor | — | 1999-12-07 |
| 5992950 | Controlled stop function for locomotives | Bret Dwayne Worden | 1999-11-30 |
| 5990648 | Method for detecting locked-axle conditions without a speed sensor | Kevin Michael Jones | 1999-11-23 |
| 5929610 | Method and apparatus for shoot-through detection and accommodation in an electric power system including a synchronous generator power source | Ariel Friedlander, Bret Dwayne Worden, Myron L. Smith, Charles Earl Cooper | 1999-07-27 |
| 5923550 | Interference reduction by harmonic phase shift in multiple PWM rectifier operation | — | 1999-07-13 |
| 5896021 | Removal of moisture from induction motors | — | 1999-04-20 |
| 5841254 | Torque maximization and vibration control for AC locomotives | Edgar T. Balch, Luzern Arthur Richter, Sean E Gleason | 1998-11-24 |
| 5721479 | Induction motor breakdown slip prediction for propulsion traction applications | Laurence D. Vanek | 1998-02-24 |
| 5712802 | Thermal protection of traction inverters | Peter Billey Macchiaroli | 1998-01-27 |
| 5691625 | Using sensed stator terminal voltages for determining alternator rotor position for cranking an engine | Thomas D. Stitt | 1997-11-25 |
| 5646510 | AC locomotive operation with DC bus current sensor failure | — | 1997-07-08 |
| 5629567 | Speed control system for an AC locomotive | — | 1997-05-13 |
| 5528486 | Firing pattern output generation for AC traction inverter control | Thomas D. Stitt | 1996-06-18 |
| 5521593 | Method and apparatus for monitoring operating characteristics of semiconductor electric power switching circuits | — | 1996-05-28 |
| 5480220 | Method for inhibiting wheel slip in an electric alternating current induction motor powered vehicle | — | 1996-01-02 |
| 5436540 | Protection circuit for a gate turn-off device in an electrical braking system for an electric traction motor vehicle | — | 1995-07-25 |
| 5414615 | Pattern generation control for inverter drives | Thomas D. Stitt | 1995-05-09 |
| 5396214 | Dynamic braking grid resistor configuration for reducing EMI in an electric traction motor vehicle | — | 1995-03-07 |
| 5363039 | Auto self test of AC motor system | Thomas D. Stitt | 1994-11-08 |
| 5345358 | Method for evaluating operability of filter components in power conversion system | — | 1994-09-06 |
| 5331261 | Regenerative braking protection for an electrically-propelled traction vehicle | Herbert J. Brown, Ronald F. Griebel, Stuart W. McElhenny, Dean S. Grinch | 1994-07-19 |