Issued Patents All Time
Showing 26–44 of 44 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5535122 | Method of and an apparatus for providing a safety check of the brake retardation capability of a brake system on a vehicle | David A. Greer, Richard J. Mazur | 1996-07-09 |
| 5471387 | Method of and apparatus for the combined detection of speed varying energy level wheel slip detection and determination of wheel slip intensity of a railway vehicle brake system | David A. Greer | 1995-11-28 |
| 5453942 | Wheel spin speed processing system for multiple-axle railway vehicles | John W. Drake, Paul E. Jamieson | 1995-09-26 |
| 5388968 | Compressor inlet valve | Robert R. Ball | 1995-02-14 |
| 5315520 | Friction brake interface health check system for multiple-axle railway vehicles | John B. Drake, Carl J. Slavick, Jr., Richard J. Mazur | 1994-05-24 |
| 5290095 | Wheel lock detection arrangement for multiple-axle railway vehicles | John W. Drake, David J. Pcsolar | 1994-03-01 |
| 5280718 | Transducer health and offset calibration processing system | John W. Drake, David J. Pcsolar | 1994-01-25 |
| 5244171 | Intermediary wheel slip sequence speed processing system for multiple axle railway vehicles | John W. Drake | 1993-09-14 |
| 5209551 | Analog service brake response enhancing circuit for railway vehicles | Richard J. Mazur, John W. Drake | 1993-05-11 |
| 5124988 | Dump valve operational fault-determination system | John W. Drake | 1992-06-23 |
| 5098169 | Magnet valve safety check and fault indication integrator | John W. Drake | 1992-03-24 |
| 4999779 | Axle health discriminatory safety timer arrangement for controlling wheel slip on a multiple-axle railway vehicle | John W. Drake | 1991-03-12 |
| 4987543 | Wheel spin control system | Richard J. Mazur | 1991-01-22 |
| 4979391 | Transducer operational fault determination system | John W. Drake | 1990-12-25 |
| 4972145 | Speed sensor gap fault-detection arrangement for multiple-axle rail vehicles | John W. Drake | 1990-11-20 |
| 4941099 | Electronic adhesion adaptive wheel slide protection arrangement function | Richard J. Mazur | 1990-07-10 |
| 4598953 | Electropneumatic brake control system for railway transit vehicle | Richard J. Mazur | 1986-07-08 |
| 4491920 | Rate polarity shift wheel-slip control system | Richard J. Mazur | 1985-01-01 |
| 4486839 | Synchronous wheel-slip protection system | Richard J. Mazur | 1984-12-04 |