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| Number | Title | Issue Date |
| 5253847 | Tap-out metering rod control system A system for controlling motion of a metering rod used to regulate the flow of metal from a holding furnace to a tap-out box which comprises a float floating on the surface of the molten metal in the tap-out box, and a metering rod actuator connected to t... | 10/19/1993 |
| 4984904 | Apparatus for continuously measuring temperature of molten metal and method for making same An apparatus for continuously measuring temperatures of molten metal including a thermocouple unit (A) and an immersion protection tube unit (B), wherein the thermocouple unit (A) comprises a thermocouple (1) having an end equipped with a temperature sens... | 01/15/1991 |
| 4881824 | Immersible probe An immersion sampler probe for the analysis of a molten metal bath in a BOF vessel. The probe is weighted to penetrate the slag and position a temperature sensor or oxygen sensor at an appropriate depth. A counterweight with a float ensures proper immersi... | 11/21/1989 |
| 4761266 | Controlled addition of lithium to molten aluminum Lithium feed to an aluminum-lithium alloy production system is achieved at a highly controlled rate by advancing a plunger at a predetermined volumetric rate into a body of molten lithium retained in a holding vessel to displace the lithium toward an over... | 08/02/1988 |
| 4540161 | Installation for the fusion of metal ingots An installation for the fusion of metal ingots so as to provide a continuous supply of the metal ingots to an electric furnace in a safe fashion. The installation includes a rail on which can be suspended several metal ingots one behind the other. The rai... | 09/10/1985 |
| 4509728 | Molten metal filtration indicator A molten metal filter effectiveness indicator comprising means for detecting the molten metal level on at least one side of a molten metal filter, and method.... | 04/09/1985 |
| 4460163 | Device and furnace for discharging measured quantities of molten metal A holding or smelting furnace for discharging measured quantities of molten metal includes a furnace wall defining a furnace chamber adapted to contain molten metal having an upper free melt level, and at least one melt outlet channel extending from the f... | 07/17/1984 |
| 4456229 | Pig-charging apparatus for a hot-chamber pressure-diecasting machine An automatic pig-charging apparatus for hot-chamber pressure-diecasting machines is described, which enable small parts to be manufactured e.g., a Zamak alloy especially under mass production conditions. Excessive fluctuations of the level of the liquid m... | 06/26/1984 |
