Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5092529 | Apparatus for manipulation of impactor hammers | John S. Downs | 1992-03-03 |
| 5029761 | Liner wear insert for vertical shaft impactor rotor | — | 1991-07-09 |
| 4756484 | Vertical shaft impact crusher with interchangeable crusher ring segments | Stephen Butts | 1988-07-12 |
| 4659026 | Guard rings for vertical shaft impact crusher | Lee Krause, Scott E. Szalanski | 1987-04-21 |