Issued Patents All Time
Showing 1–15 of 15 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6679691 | Anti cavitation system for two-speed motors | Michael Barto, Mark Schuster, John B. Heckel | 2004-01-20 |
| 6544018 | Hydraulic motor having multiple speed ratio capability | John B. Heckel | 2003-04-08 |
| 6371149 | Shuttle valve assembly and improved shifting thereof | Michael J. Gust | 2002-04-16 |
| 6126424 | Transistion valving for gerotor motors | Wayne B. Wenker | 2000-10-03 |
| 6099280 | Two speed geroter motor with external pocket recirculation | Jarett D. Millar, Karen J. Radford, Ryan C. Bergerson | 2000-08-08 |
| 5624248 | Gerotor motor and improved balancing plate seal therefor | Gary R. Kassen | 1997-04-29 |
| 5593296 | Hydraulic motor and pressure relieving means for valve plate thereof | Karen J. Radford, Gary R. Kassen | 1997-01-14 |
| 5516268 | Valve-in-star motor balancing | Gary R. Kassen | 1996-05-14 |
| 5328343 | Rotary fluid pressure device and improved shuttle arrangement therefor | Marvin Flaschenriem, Oliver W. Johnson, Sohan L. Uppal | 1994-07-12 |
| 5009582 | Rotary fluid pressure device and improved stationary valve plate therefor | — | 1991-04-23 |
| 4976594 | Gerotor motor and improved pressure balancing therefor | — | 1990-12-11 |
| 4756676 | Gerotor motor with valving in gerotor star | — | 1988-07-12 |
| 4741681 | Gerotor motor with valving in gerotor star | — | 1988-05-03 |
| 4715798 | Two-speed valve-in star motor | — | 1987-12-29 |
| 4613292 | Hydraulic motor having free-wheeling and locking modes of operation | Steven J. Zumbusch | 1986-09-23 |