Issued Patents All Time
Showing 1–19 of 19 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7618247 | Progressive staged flow to precompress the pump internal volume/volumes to be displaced | — | 2009-11-17 |
| 6896489 | Variable displacement vane pump with variable target regulator | Douglas G. Hunter | 2005-05-24 |
| 6790013 | Variable displacement vane pump with variable target regulator | Douglas G. Hunter | 2004-09-14 |
| 6572154 | Threadless flared tube fitting for connecting flow conductors | — | 2003-06-03 |
| 5778671 | Electrohydraulic system and apparatus with bidirectional electric-motor/hydraulic-pump unit | James V. Bloomquist | 1998-07-14 |
| 5735553 | Flared tube fitting for connecting flow conductors | — | 1998-04-07 |
| 5354182 | Unitary electric-motor/hydraulic-pump assembly with noise reduction features | George M. Russell, Ronald B. Schweiger, Otto P. Langosch | 1994-10-11 |
| 5320501 | Electric motor driven hydraulic apparatus with an integrated pump | Otto P. Langosch, Ronald B. Schweiger | 1994-06-14 |
| 5266018 | Hydraulic vane pump with enhanced axial pressure balance and flow characteristics | — | 1993-11-30 |
| 5261796 | Electric-motor in-line integrated hydraulic pump | James V. Bloomquist, William E. Sargo | 1993-11-16 |
| 5253982 | Electrohydraulic pump load control system | James V. Bloomquist | 1993-10-19 |
| 5201647 | Rotary hydraulic vane device having a shaf seal | Louis J. Cardinale | 1993-04-13 |
| 5199718 | Rotary machine shaft seal | — | 1993-04-06 |
| 5181837 | Electric motor driven inline hydraulic apparatus | — | 1993-01-26 |
| 5171131 | Power transmission | — | 1992-12-15 |
| 4917585 | Gerotor motor or pump having sealing rings in commutator members | John F. Walrad | 1990-04-17 |
| 4913636 | Rotary vane device with fluid pressure biased vanes | — | 1990-04-03 |
| 4731999 | Power transmission | — | 1988-03-22 |
| 4480962 | Pump with inlet passages downstream and through its flow control valve | — | 1984-11-06 |