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| Number | Title | Issue Date |
| 7225953 | Valve gate assembly A valve gate assembly is provided for regulating a flow of molten material through a gate and into a mold. The valve gate assembly includes a movable valve having a closed position closing the gate to prevent molten material from entering the mold and an opened posi... | 06/05/2007 |
| 7008590 | Refractory stopper with a temperature resistant, electrically conductive coating A refractory article such as a stopper used in the casting of molten metals that consists of a refractory core coated with an electrically conductive layer of carbon and graphite materials such that the stopper withstands the mechanical, chemical and thermal rigors ... | 03/07/2006 |
| 5916473 | Steel pouring nozzle A nozzle for a steel pouring ladle having upper and lower nozzle portions and a stopper rod attached to a lower nozzle portion. The upper nozzle portion includes an upper nozzle housing and an upper nozzle core positioned within the upper nozzle housing, ... | 06/29/1999 |
| 5891355 | Self-sealing, bottom pouring system A pouring system comprises a crucible having an opening formed on a bottom thereof, and a self-sealing member blocking the opening. The self-sealing member is made of material which is the same as the raw material received within the bottom of the crucibl... | 04/06/1999 |
| 5723055 | Nozzle assembly having inert gas distributor A refractory nozzle assembly is provided that effectively prevents the accumulation of alumina deposits around its upper edge where it receives a stopper rod. The nozzle assembly includes a refractory nozzle body having an upper and a lower portion. A bor... | 03/03/1998 |
| 5691061 | Refractory shape having an external layer capable of forming a layer impermeable to gases and process for its preparation The invention concerns a component for the pouring of steel that has a body (2) of a refractory material containing carbon. It has a layer (10) that covers the body partially or completely and is capable of forming a surface layer (10a) that is oxidized a... | 11/25/1997 |
| 5105873 | Casting operation emergency shut-off apparatus The apparatus for manually interrupting the flow of molten metal from the tundish includes a frame, and elements for removably securing the frame to the tundish adjacent the tundish orifice. The apparatus further includes a plug assembly for blocking the ... | 04/21/1992 |
| 4643404 | Tiltable metallurgical vessel arrangement A tiltable metallurgical vessel has a convexly curved bottom, and is supported on a cradle frame tiltably mounted on the base. In order to provide a metallurgical vessel of high operational safety in which the melt covers as short a path as possible durin... | 02/17/1987 |
| 4589635 | Porous plug retainer A porous plug retainer which can be mounted in a hot metal ladle or similar vessel for locating, installing and retaining an argon porous plug so as to allow service and maintenance of the porous plug to be performed from outside the vessel. The porous pl... | 05/20/1986 |
| 4461336 | System for emergency interruption of continuous casting operations The flow of molten metal from the orifice of a tundish to a continuous casting mold is stopped by a chill plug. The chill plug is attached to an L-shaped arm which is connected to a pivotable arm. The pivotable arm is actuated by a piston-cylinder attache... | 07/24/1984 |
| 4360133 | Apparatus for pouring molten steel A mounting chassis, fixed by locking pivots to the base plate of a tundish in a continuous casting plant, supports an upper nozzle seated in a refractory brick. A replaceable lower nozzle coaxial with the upper nozzle is held in contact with the upper noz... | 11/23/1982 |
| 4298147 | Discharging mechanism for molten metal and slag remaining in tundish for continuous casting machine A discharging mechanism for molten metal and slag remaining in a tundish provided with at least one pouring nozzle for a continuous casting machine, which comprises: a discharging nozzle attached to the bottom wall of the tundish, the nozzle having a disc... | 11/03/1981 |
| 4187966 | Metal dispensing valve assembly for battery grid casting machine A valve assembly for dispensing a predetermined amount of molten metal to a mold filling ladle of a battery grid casting machine. The valve assembly includes a substantially tubular body having an interior chamber therein. A discharge spout projects downw... | 02/12/1980 |
| 4022356 | Metal valve for battery grid casting machine A valve for dispensing a predetermined amount of molten lead to the mold of a battery grid casting machine has two tubular housings arranged in telescoping relation with their axes extending vertically. The upper housing is fixed and has a feed line for m... | 05/10/1977 |
| 3979031 | Discharge valve assembly for a metal ladle actuated through bottom of ladle A discharge valve assembly for a hot metal ladle having a discharge opening in the bottom thereof includes a heat resistant stopper positioned in the ladle for movement toward and away from the discharge opening and a vertical portion extending through th... | 09/07/1976 |
| 3968908 | Device for preventing ladle nozzle leaks A closure device for use in preventing leakage of molten steel or other metal from the nozzle of a metal ladle comprises a pair of generally vertical elongated jaw members spaced and hinged at their bottom ends to a base member, the jaws and the base memb... | 07/13/1976 |
