Issued Patents All Time
Showing 1–20 of 20 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7628265 | Positive displacement sorter shoe | Rhonda J. Verploegen, Frank Veit, Brian J. Feenstra | 2009-12-08 |
| 7249668 | Positive displacement sorter shoe | Rhonda J. Verploegen, Frank Veit, Brian J. Feenstra | 2007-07-31 |
| 7114613 | Article unscrambler with high speed tapered roller | James P. Johnson | 2006-10-03 |
| 6915897 | Trailer loader/unloader with pullout section | — | 2005-07-12 |
| 6763930 | Accumulation conveyor assembly | James P. Johnson | 2004-07-20 |
| 6640953 | Controlled gravity accumulation conveyor | Clint R. Lupton | 2003-11-04 |
| 6609607 | Article separation conveyor | Bernard H. Woltjer, Douglas E. Olson, John R. Stafford, Ricardo N. Schiesser, Dennis J. Schuitema | 2003-08-26 |
| 6561360 | Automatic tray handling system for sorter | W Scott Kalm, Douglas E. Olson, Ricardo N. Schiesser, David Cotter | 2003-05-13 |
| 6484869 | Conveyor personnel gate | James L. Frank | 2002-11-26 |
| 5810154 | Low actuation force article sensor for conveyor | Charles R. DeVries | 1998-09-22 |
| 5735388 | Conveyor system diverter components having friction-enhancing surfaces and related methods of use | — | 1998-04-07 |
| 5630495 | Conveyor system diverter components having friction-enhancing surfaces and related methods of use | — | 1997-05-20 |
| 5415281 | High speed article unscrambler and aligner | Eric R. Taylor, Curtis E. LeMay, Bernard H. Woltjer | 1995-05-16 |
| 4878578 | Split-cam conveyor rollers | — | 1989-11-07 |
| 4738347 | Diverter shoe and diverting rail | William J. Campbell, Charles W. Saur, Bernard H. Woltjer | 1988-04-19 |
| 4564105 | Tilted spiral article diverter | Charles R. DeVries | 1986-01-14 |
| 4458809 | Padded chain conveyor drive | Oscar M. White | 1984-07-10 |
| 4284186 | Unscrambling conveyor | — | 1981-08-18 |
| 4252234 | Pressure support for plural cable conveyor drive | — | 1981-02-24 |
| 4241825 | Pivoted gimbel bearing for rollers | — | 1980-12-30 |