Issued Patents All Time
Showing 1–10 of 10 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6412421 | Gate assembly for a railroad hopper car | Brian A. Senn | 2002-07-02 |
| 6412422 | Gate assembly for a railroad hopper car | Brian A. Senn | 2002-07-02 |
| 6363863 | Gate assembly for a railroad hopper car | — | 2002-04-02 |
| 6357361 | Assembly for closing a pneumatic discharge outlet | — | 2002-03-19 |
| 6263803 | Gate assembly for a railroad hopper car | Brian A. Senn | 2001-07-24 |
| 6123030 | Gate assembly for a railroad hopper car | Brian A. Senn, Robert S. Toms | 2000-09-26 |
| D427741 | Serpentine rack | — | 2000-07-04 |
| 5829359 | Railway hopper car discharge gate assembly | Brian A. Senn, Robert S. Toms, Robert T. Fischer | 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 | Robert S. Toms, Robert T. Fischer | 1998-10-20 |
| 5353713 | Apparatus for controlling operation of a railcar discharge gate assembly having a lost motion mechanism for unlocking the gate prior to movement | Robert S. Toms | 1994-10-11 |