Issued Patents All Time
Showing 376–391 of 391 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5323095 | Propulsion and electric braking system for electric traction motor vehicle | — | 1994-06-21 |
| 5283507 | Regenerative braking protection for an electrically-propelled traction vehicle | Thomas D. Stitt | 1994-02-01 |
| 5266891 | Auto self test of AC motor system | Thomas D. Stitt | 1993-11-30 |
| 5245294 | Method for evaluating operability of filter components in power conversion system | — | 1993-09-14 |
| 5229700 | Calibration of signal feedback through VCO's | Thomas D. Stitt, Philip R. Cooke | 1993-07-20 |
| 5208741 | Chopper circuit for dynamic braking in an electric power conversion system | — | 1993-05-04 |
| 5170105 | Method for determining operability of an electrical dynamic braking system | — | 1992-12-08 |
| 5168439 | Inverter control method and apparatus | Thomas D. Stitt | 1992-12-01 |
| 5117166 | Chopper circuit for dynamic braking in an electric power conversion system | — | 1992-05-26 |
| 5057987 | Fault detection and protection strategy for a pair of complementary GTO thyristors | Thomas D. Stitt | 1991-10-15 |
| 4933624 | Electric power supply with controllable voltage boost | — | 1990-06-12 |
| 4792788 | Position indicating system | — | 1988-12-20 |
| 4695941 | Loss of electrical feedback detector | — | 1987-09-22 |
| 4634887 | Load rate limiting means for a locomotive engine | Edgar T. Balch, Richard E. Bilski | 1987-01-06 |
| 4471421 | Means for controlling a forced commutated hybrid a-c to d-c electric rectifying bridge to avoid reverse recovery overvoltage in the diode leg | Herbert J. Brown, Ivan Horvat | 1984-09-11 |
| 4467408 | Means for controlling a forced commutated ac-to-dc electric rectifying circuit to avoid commutation failure | Edward S. Matulevich, Herbert J. Brown | 1984-08-21 |