Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6381829 | Method for making an improved main shaft for a coal pulverizer by employing a ceramic coating thereon | David W. Gerber | 2002-05-07 |
| 6347758 | Strain relief main shaft | Ronald D. Mizak | 2002-02-19 |
| 6270026 | Strain relief main shaft assembly | David W. Gerber | 2001-08-07 |
| 6132135 | Strain relief main shaft assembly | David W. Gerber | 2000-10-17 |
| 5884776 | Dynamic classifier with hollow shaft drive motor | Donald R. Dougan | 1999-03-23 |
| 5346148 | Asymmetric pulverizer tire | Bryan Hand, Ronald D. Mizak | 1994-09-13 |