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| Number | Title | Issue Date |
| 6663776 | High strength SiC filter and method for the manufacture thereof There is provided an improved ceramic foam filter for use in filtering molten metals, metal prepared from a ceramic slurry containing silicon carbide, a colloidal silica binder and at least 10 percent of fumed silica. The filter has enhanced strength prop... | 12/16/2003 |
| 6036743 | Method and apparatus for removing liquid salts from liquid metal There is provided a method and apparatus for removing liquid salts from liquid metal utilizing at least one porous substrate which is wettable by liquid salts and is not wettable by liquid metal. The porous substrate is inserted into a container having a ... | 03/14/2000 |
| 5673902 | Dual stage ceramic foam filtration system and method There is provided a dual stage ceramic foam molten metal filtration system and method. Coarse and fine filters are mounted adjacent to one another in a molten metal flow path. A convection preheat apparatus provides preheat for both filters. A vent struct... | 10/07/1997 |
| 5569845 | Apparatus and method for detecting molten salt in molten metal There is provided an apparatus and method for detecting molten salt in molten metal. A pair of electrically conductive probes are immersed in the molten metal. The probes are connected to an electrical circuit which includes a voltage source and a current... | 10/29/1996 |
| 5456833 | Ceramic foam filter having a protective sleeve There is provided a composite ceramic foam filter having an outer edge which is surrounded by a protective sleeve, with the outer edge of the filter being bonded to the inner surface of the sleeve. The composite is preferably made by forming a ceramic sle... | 10/10/1995 |
