Issued Patents All Time
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10369400 | Weighted throwing sleeve | — | 2019-08-06 |
| 5823357 | Automated wheel sorting system and method | Christopher Z. Sieradzki | 1998-10-20 |
| 5319892 | Method for sprue removal and grinding of railroad wheels | C. Dale Christie, Charles W. Taff | 1994-06-14 |
| 5209021 | Apparatus and method for sprue removal and grinding of railroad wheels | C. Dale Christie, Charles W. Taff | 1993-05-11 |
| 5158416 | Apparatus for handling railway wheels | — | 1992-10-27 |
| 4809883 | Sand dispensing assembly | — | 1989-03-07 |
| 4719793 | Hardness testing apparatus | — | 1988-01-19 |
| 4545058 | Electric furnace refractory roof form | — | 1985-10-01 |