Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7963388 | Spline roller for a belt-driven roller conveyor, and method for making | John Erwin Treft | 2011-06-21 |
| 7882944 | Drive belt guard for a roller conveyor | John Erwin Treft | 2011-02-08 |
| 7306091 | Tapered spline roller for curved roller conveyor | John Erwin Treft | 2007-12-11 |
| 6938751 | Vertical lift assembly | David Norman Radford | 2005-09-06 |
| 5855271 | Noise and wear reducing apparatus for endless conveyors | Marcus Hix | 1999-01-05 |