Issued Patents All Time
Showing 1–14 of 14 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10562546 | Mechanism for operating a railcar discharge gate assembly | John E. Dolnik | 2020-02-18 |
| 10407972 | Method and mechanism for controlling gravitational discharge of material from a railroad hopper car | Richard Watson, Eric F. Wenzel | 2019-09-10 |
| 9751536 | Railroad hopper car door operating mechanism | Guadalupe L. Galvan, Steve R. White, Eric F. Wenzel | 2017-09-05 |
| 8485110 | Apparatus for controlling discharge of material from a railroad hopper car | Guadalupe L. Galvan, Steve R. White | 2013-07-16 |
| 8319660 | System and related method for visually indicating a condition of a lock on a railroad hopper car | — | 2012-11-27 |
| 7810436 | Hinge system for pivotally connecting a first member to a second member | Rudolph S. Fortuna | 2010-10-12 |
| 7387075 | Method for mounting a hatch cover to a railcar | Rudolph S. Fortuna | 2008-06-17 |
| 7003850 | Railroad car hatch cover hinge structure and method for connecting a hatch cover to a railcar | Rudolph S. Fortuna | 2006-02-28 |
| 6827025 | Hatch cover for a railroad hopper car | Michael R. Palermo | 2004-12-07 |
| 6637346 | Railroad hopper car gate assembly and method of operating same | — | 2003-10-28 |
| 6431084 | Railroad hopper car gate assembly and method of operating same | — | 2002-08-13 |
| 6279487 | Railroad hopper car door assembly | Robert T. Fischer, Guadalupe L. Galvan | 2001-08-28 |
| 6227124 | Locking mechanism for a hinged railroad hopper car door | Adam A. Huppert, Jeffrey Carter, Guadalupe L. Galvan | 2001-05-08 |
| 6019049 | Railroad hopper car door assembly | Robert T. Fischer, Guadalupe L. Galvan | 2000-02-01 |