Issued Patents All Time
Showing 1–25 of 25 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6629814 | Low profile pump | Richard A. Hallett | 2003-10-07 |
| 6050788 | Pump with improved seal for filtration systems | Richard A. Hallett, Robert F. Benschoter, Scott M. McEwen, Anthony J. Palumbo | 2000-04-18 |
| 6017446 | Floor mounted filtration system | Eugene H. Harms, Michael Harms, John L. Creps | 2000-01-25 |
| 5985145 | Shaft mounted gear box | — | 1999-11-16 |
| 5961828 | Compact drive system utilizing gear box with worm and cycloidal gears | — | 1999-10-05 |
| 5961847 | Filter apparatus with dual drive loops | John L. Creps, Richard A. Hallett, Clayton E. Tenniswood | 1999-10-05 |
| 5820756 | Disc filter assembly for machine tool coolant | Jay M. Creps, Scott M. McEwen, Richard A. Hallet, Robert F. Benschoter, Barry Benschoter | 1998-10-13 |
| 5662812 | Trough system for machine tool coolant collection flumes | — | 1997-09-02 |
| 5655849 | Couplings for joining shafts | Richard A. Hallett, Robert F. Benschoter, Scott M. McEwen, Anthony J. Palumbo | 1997-08-12 |
| 5637213 | Immersible filter drum unit and method for assembling thereof | Jay M. Creps, Scott M. McEwen, Richard A. Hallet, Robert F. Benschoter, Barry Benschoter | 1997-06-10 |
| 5503520 | Pump for filtration systems | Richard A. Hallett, Robert F. Benschoter, Scott M. McEwen, Anthony J. Palumbo | 1996-04-02 |
| 5389256 | Filter apparatus for machine tool coolant | Jay M. Creps, Scott M. McEwen | 1995-02-14 |
| 5300220 | Trough system for machine tool coolant collection flumes | — | 1994-04-05 |
| 5158691 | Filter apparatus and method for filtering contaminants from machine tool coolant | Jay M. Creps, Scott M. McEwen | 1992-10-27 |
| 5154584 | Pump for filtration systems | — | 1992-10-13 |
| 5135364 | Pump mounting apparatus for filtration system | — | 1992-08-04 |
| 5030346 | Pump for filtration system | — | 1991-07-09 |
| 4975184 | Horizontal removable pump for filtration systems | — | 1990-12-04 |
| 4900438 | Pump mounting for a filtration system | — | 1990-02-13 |
| RE32135 | Compact universal drum filter settler | John L. Creps, Robert J. Fox, Ted W. Guelde, Eugene H. Harms | 1986-05-06 |
| 4507061 | Check valve and pump receptor assembly | Ted W. Guelde | 1985-03-26 |
| 4467633 | Trough, manufacturing process, and apparatus | Robert L. Stevens, Barry Benschoter, Robert F. Benschoter | 1984-08-28 |
| 4428838 | Tubular filter structure | John L. Creps, Timothy J. Hainen | 1984-01-31 |
| 4420868 | Trough manufacturing process | Robert L. Stevens, Barry Benschoter, Robert F. Benschoter | 1983-12-20 |
| 4421645 | Compact universal drum filter settler | John L. Creps, Robert J. Fox, Ted W. Guelde, Eugene H. Harms | 1983-12-20 |