Issued Patents All Time
Showing 1–10 of 10 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9751536 | Railroad hopper car door operating mechanism | Christopher C. Gaydos, Steve R. White, Eric F. Wenzel | 2017-09-05 |
| 8485110 | Apparatus for controlling discharge of material from a railroad hopper car | Christopher C. Gaydos, Steve R. White | 2013-07-16 |
| 7654205 | Railcar door control apparatus | — | 2010-02-02 |
| 7493865 | Railcar door control apparatus | — | 2009-02-24 |
| 6604469 | Apparatus for controlling operation of railroad hopper car discharge doors | Robert T. Fischer | 2003-08-12 |
| 6279487 | Railroad hopper car door assembly | Christopher C. Gaydos, Robert T. Fischer | 2001-08-28 |
| 6227124 | Locking mechanism for a hinged railroad hopper car door | Christopher C. Gaydos, Adam A. Huppert, Jeffrey Carter | 2001-05-08 |
| 6019049 | Railroad hopper car door assembly | Christopher C. Gaydos, Robert T. Fischer | 2000-02-01 |
| 5163372 | Unit for actuating gates of a hopper railroad car | Robert T. Fischer | 1992-11-17 |
| 5086709 | Sliding gate structure with dual linkage per single actuator arrangement | Robert T. Fischer | 1992-02-11 |