Issued Patents All Time
Showing 1–13 of 13 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8136615 | Method for operating an internal combustion engine | Thomas Pels, Paul Kapus, Peter R. Ebner, Gunter K. Fraidl, Wolfgang Kriegler +1 more | 2012-03-20 |
| 6604469 | Apparatus for controlling operation of railroad hopper car discharge doors | Guadalupe L. Galvan | 2003-08-12 |
| 6279487 | Railroad hopper car door assembly | Christopher C. Gaydos, Guadalupe L. Galvan | 2001-08-28 |
| 6019049 | Railroad hopper car door assembly | Christopher C. Gaydos, Guadalupe L. Galvan | 2000-02-01 |
| 5829359 | Railway hopper car discharge gate assembly | Jeremy J. Dohr, Brian A. Senn, Robert S. Toms | 1998-11-03 |
| RE35925 | Apparatus for controlling operation of a railcar discharge gate assembly having a lost motion mechanism for unlocking the gate prior to movement | Jeremy J. Dohr, Robert S. Toms | 1998-10-20 |
| 5163372 | Unit for actuating gates of a hopper railroad car | Guadalupe L. Galvan | 1992-11-17 |
| 5086709 | Sliding gate structure with dual linkage per single actuator arrangement | Guadalupe L. Galvan | 1992-02-11 |
| 4601244 | Operating system for railroad hopper car gate assembly doors | — | 1986-07-22 |
| 4542701 | Tamper-proof railroad hopper car door operating system | Merle D. Wahlstrom | 1985-09-24 |
| 4454822 | Gate assembly unit for ballast distribution from railroad car | — | 1984-06-19 |
| 4256042 | Railway hopper car sliding gate lock | — | 1981-03-17 |
| 4253400 | Railway hopper car sliding gate closing mechanism | William R. Shaver | 1981-03-03 |