Issued Patents All Time
Showing 101–125 of 140 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8075837 | Pump with rotating inlet | — | 2011-12-13 |
| 7906068 | Support post system for molten metal pump | — | 2011-03-15 |
| 7731891 | Couplings for molten metal devices | — | 2010-06-08 |
| 7507367 | Protective coatings for molten metal devices | — | 2009-03-24 |
| 7470392 | Molten metal pump components | — | 2008-12-30 |
| 7402276 | Pump with rotating inlet | — | 2008-07-22 |
| 6723276 | Scrap melter and impeller | — | 2004-04-20 |
| 6689310 | Molten metal degassing device and impellers therefor | — | 2004-02-10 |
| 6457950 | Sealless multiphase screw-pump-and-motor package | Allan J. Prang | 2002-10-01 |
| 6398525 | Monolithic rotor and rigid coupling | — | 2002-06-04 |
| 6345964 | Molten metal pump with metal-transfer conduit molten metal pump | — | 2002-02-12 |
| 6303074 | Mixed flow rotor for molten metal pumping device | — | 2001-10-16 |
| 6280157 | Sealless integral-motor pump with regenerative impeller disk | — | 2001-08-28 |
| 6123523 | Gas-dispersion device | — | 2000-09-26 |
| 6093000 | Molten metal pump with monolithic rotor | — | 2000-07-25 |
| 6027685 | Flow-directing device for molten metal pump | — | 2000-02-22 |
| 5951243 | Rotor bearing system for molten metal pumps | — | 1999-09-14 |
| 5944496 | Molten metal pump with a flexible coupling and cement-free metal-transfer conduit connection | — | 1999-08-31 |
| 5678807 | Rotary degasser | — | 1997-10-21 |
| 5662725 | System and device for removing impurities from molten metal | — | 1997-09-02 |
| 5330328 | Submersible molten metal pump | — | 1994-07-19 |
| 5308045 | Scrap melter impeller | — | 1994-05-03 |
| 5215448 | Combined boiler feed and condensate pump | — | 1993-06-01 |
| 5203681 | Submerisble molten metal pump | — | 1993-04-20 |
| 5192193 | Impeller for centrifugal pumps | Donald P. Sloteman | 1993-03-09 |