Issued Patents All Time
Showing 1–21 of 21 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5871687 | Consumable recharging box | — | 1999-02-16 |
| 5284328 | Consumable charge box and assembly for recharging material into a furnace or vessel for producing molten metal | — | 1994-02-08 |
| 5249779 | Modified manifold assembly for directional gas distribution device | — | 1993-10-05 |
| 5225143 | Device for directional gas distribution into molten metal | Victor Garcia, Jr., Dallas F. Mansell, Jr. | 1993-07-06 |
| 4840356 | Externally replaceable stirring plug for molten metal vessels | — | 1989-06-20 |
| 4799650 | Slag retaining device with vortex inhibitor | — | 1989-01-24 |
| 4783061 | Tundish liner | Joseph A. Perri | 1988-11-08 |
| 4687184 | Device for introducing gas into molten metal in a wide annular stream | Joseph A. Perri | 1987-08-18 |
| 4634106 | Device for placing slag retention means in tapping converter | — | 1987-01-06 |
| 4632367 | Device for introducing gas into molten metal | — | 1986-12-30 |
| 4630667 | Coated refractory shapes useful in bottom pouring of ingots in ingot molds | — | 1986-12-23 |
| 4610436 | Slag retaining device with self-aligning tip | Joseph A. Perri | 1986-09-09 |
| 4553743 | Elevated device for placing slag retention means in tapping converters | Joseph A. Perri | 1985-11-19 |
| 4552343 | Combination electric furnace and slag retaining pouring spout | Joseph A. Perri | 1985-11-12 |
| 4550898 | Air cooled refractory lance | — | 1985-11-05 |
| 4526351 | Slag and hot metal runner system | — | 1985-07-02 |
| 4483520 | Device for introducing gas into molten metal | — | 1984-11-20 |
| 4372544 | Blast furnace trough and liner combination | — | 1983-02-08 |
| 4328957 | Prefabricated multiple density blast furnace runner | — | 1982-05-11 |
| 4239818 | Process and material for treating steel walls and fans in electrical precipitation installations with micron colloidal graphite particles | — | 1980-12-16 |
| 4187334 | Process and material for treating steel walls and fans in electrical precipitation installations with micron colloidal graphite particles | — | 1980-02-05 |