Issued Patents All Time
Showing 25 most recent of 54 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6705459 | Two-way vibratory feeder | — | 2004-03-16 |
| 6453982 | Sand cleaning apparatus | Daniel T. Lease | 2002-09-24 |
| 6286541 | Mechanical leak-proof coupling | Oscar L. Mathis, Jr. | 2001-09-11 |
| 6241951 | Material fluidizing assembly | Richard B. Kraus | 2001-06-05 |
| 6155404 | Vibratory conveyors | — | 2000-12-05 |
| 6029796 | Two way vibratory conveyor | — | 2000-02-29 |
| 6000644 | Method and apparatus for reclaiming foundry sand | — | 1999-12-14 |
| 5967222 | Vibratory sand reclamation system | Daniel T. Lease | 1999-10-19 |
| 5931664 | Non-mechanical leak-proof coupling | Daniel T. Lease | 1999-08-03 |
| 5924473 | Vibratory sand reclamation system | — | 1999-07-20 |
| 5901775 | Two-stage heat treating decoring and sand reclamation system | Daniel T. Lease | 1999-05-11 |
| 5713457 | Two-way vibratory feeder or conveyor | — | 1998-02-03 |
| 5666852 | Jointed weight for a vibratory apparatus | — | 1997-09-16 |
| 5591074 | Vibratory tumbling apparatus with reduced force transmission | — | 1997-01-07 |
| 5512008 | Vibratory tumbling apparatus | — | 1996-04-30 |
| 5505247 | Casting process and system | — | 1996-04-09 |
| 5178259 | Vibratory conveying apparatus | — | 1993-01-12 |
| 5131525 | Vibratory conveyor | — | 1992-07-21 |
| 5094342 | Vibratory conveyor | Richard B. Kraus | 1992-03-10 |
| 5067549 | Compaction apparatus and process for compacting sand | — | 1991-11-26 |
| 5056652 | Vibratory conveyor | Richard Kraus | 1991-10-15 |
| 5054606 | Control system for vibratory apparatus | — | 1991-10-08 |
| 5024320 | Vibratory spiral elevator | — | 1991-06-18 |
| RE33542 | Tumbling apparatus | — | 1991-02-26 |
| 4926601 | Vibratory tumbling apparatus | — | 1990-05-22 |