Issued Patents All Time
Showing 1–19 of 19 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6599052 | Hub and shaft coupling system | — | 2003-07-29 |
| 6530138 | Method for manufacturing a gear reducer | — | 2003-03-11 |
| 6527276 | Sealing system for shaft-mounted speed reducers | Larry Schafer | 2003-03-04 |
| 6375196 | Sealing system for a screw conveyor and drive | — | 2002-04-23 |
| 6272941 | Gear reducer having symmetrically disposed rotational shaft supports and method for making same | — | 2001-08-14 |
| 6253640 | Gear reducer with improved housing configuration | — | 2001-07-03 |
| 6202507 | Support housing for a shaft-mounted speed reducer | — | 2001-03-20 |
| 6125717 | Close-connected shaft adapter assembly, jack shaft assembly, and power transmission assembly using same | — | 2000-10-03 |
| 6029532 | Gearing commonality system for gear reducers | — | 2000-02-29 |
| 5951198 | Shaft and sleeve coupling | — | 1999-09-14 |
| 5934156 | Close-connected shaft adapter assembly, jack shaft assembly, and power transmission assembly using same | — | 1999-08-10 |
| 5765961 | Adaptable mounting arrangement for shaft-carried speed reducer | — | 1998-06-16 |
| 5667333 | Shaft-carried speed reducer having adaptable mounting arrangement | — | 1997-09-16 |
| 5400885 | Retained key shaft mounting assembly | — | 1995-03-28 |
| 5333377 | Change gear apparatus and method | — | 1994-08-02 |
| 4890504 | Helical gearsets | Erwin R. Carrigan, Harold R. Johnson, III | 1990-01-02 |
| 4794811 | Helical gearsets | Erwin R. Carrigan, Harold R. Johnson, III | 1989-01-03 |
| 4697675 | Shaft aligned backstop for a reducer | Harold R. Johnson, III, Erwin R. Carrigan, Richard A. Virgo, James E. Mickelson | 1987-10-06 |
| 4626114 | Single tapered bushing for shaft mount | — | 1986-12-02 |