Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5404827 | Gravity outlet | Dwain J. Baltz, Roger Dalske | 1995-04-11 |
| 5314094 | Cloth fluidizing membrane for hopper car outlet | Roger Dalske, David M. Maechling | 1994-05-24 |
| 4864963 | Indicating means for valve open or closed position | — | 1989-09-12 |
| 4455110 | High volume railway hopper car | — | 1984-06-19 |
| 4437798 | Valve for discharge outlet and actuating means therefore | — | 1984-03-20 |