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| Number | Title | Issue Date |
| 7207621 | Tube-style truck body An off-highway truck body comprising a plurality of tube-style support members, wherein each tube-style support member comprises one or two pieces of square tubing, wherein the truck body comprises two sidewalls, a floor, a front wall and a canopy, and wherein one s... | 04/24/2007 |
| 7025936 | Method and apparatus for preparing a sample for analysis of precious metal content This invention relates to a method for assaying an ore sample to determine the concentration of gold and PGMs therein. The method comprises the steps of separating an ore sample, combining the prepared ore sample with a lead-containing flux, inductively heating the ... | 04/11/2006 |
| 6645270 | Method of heating a crucible for molten aluminum A method of heating molten aluminum in a container utilizing gas stirring means.... | 11/11/2003 |
| 6579491 | Insulated cover for torpedo cars and method of forming an insulated cover Improvements to an insulating cover for covering an opening in a torpedo car are disclosed. The insulating cover includes upper and lower wire mesh layers and an insulating layer positioned between the wire mesh layers. A support rod may be provided which... | 06/17/2003 |
| 6508856 | Furnace discharge system and method of operation A furnace discharge system for removing material from a hearth (18) of a rotary hearth furnace (10) and method of operation. The system includes at least two material discharge augers (28, 30) positioned above the hearth (18) of the rotary hearth furnace ... | 01/21/2003 |
| 6288001 | Graphite-containing monolithic refractory material A graphite-containing monolithic refractory material comprises at least one component selected from alumina and alumina-magnesia spinel, which are divided into selected particle size regions, artificial graphite having a selected average particle size, an... | 09/11/2001 |
| 6136262 | Dross processing system A portable dross processing system has a support frame with a base and an upper support. A pair of wheels are mounted to the base, and a steering wheel can be pivotably mounted to the base. A dross receiving crucible is mounted in a crucible frame which i... | 10/24/2000 |
| 5917115 | Apparatus for and method of treating liquid metal A method of and apparatus for degassing molten metal in a vacuum treatment chamber defined by a open topped ladle containing the molten metal and a generally cylindrical refractory lined cover having a closed top and an open bottom positioned on the ladle... | 06/29/1999 |
| 5882576 | Insulating cover for torpedo cars An insulating cover for covering an opening in a torpedo car is disclosed. The insulating cover includes an upper and lower wire mesh layer and an insulating layer positioned between the wire mesh layers. Tie devices secure the wire mesh layers together a... | 03/16/1999 |
| 5643529 | Thermal insulation cover for molten metal transfer car A pre-formed rigid ceramic thermal insulating heat conservation cover is placed over and fitted into the opening of a hot liquid metal transfer car. The cover reduces thermal loss from the liquid metal by a non-metallic middle sheet encapsulated by an upp... | 07/01/1997 |
| 5544867 | Apparatus and process for transporting molten metal An apparatus and a process are provided for transferring molten metal. The disclosed apparatus includes a vessel having a cylindrical wall, a closed end, and an open end. An opening is provided in the cylindrical wall for pouring molten metal into the ves... | 08/13/1996 |
| 5529605 | Method and apparatus for removing mercury from contaminated pipes and installation parts, in particular mercury introduced by natural gas Pipe lines for conducting natural gas become contaminated, over a period of time, by an accumulation of mercury, which occurs in minute amounts in natural gas. If used pipe is scrapped, for example by melting, mercury vapor escaping to the atmosphere pose... | 06/25/1996 |
| 5480127 | Apparatus for the melting and treatment of metal In a method for melting and treating metals and metal alloys, especially steels, solid charge material is melted in a ladle. Then while passing a gas through the melt at least part of the time, at least one of the treatments of decarburization, dephosphor... | 01/02/1996 |
| 5439202 | Apparatus for removing a cover from a hot metal transfer car An apparatus for removing a cover from a transport car is mounted to the car and has a swing member connected to the cover of the car. The swing member is pulled away, with the cover, by rolling down a pair of guide members to a termination point. A winch... | 08/08/1995 |
| 5263690 | Apparatus for metallurgical treatment of molten steel A unit for the metallurgical treatment of molten steel, located in steel teeming ladles, by heating and vacuum treatment. The ladle-metallurgical treatment unit serves for the mutual treatment of steel meltings by heating and vacuum treatment. It consists... | 11/23/1993 |
| 5253846 | Apparatus and method for controlling operation of quenching car/bucket car for coke oven An apparatus for controlling drive or operation of a quenching car and/or a bucket car for a coke oven and a method therefor, capable of effectively accomplishing the automatic control of the operation of the quenching car/bucket car. A quenching car/buck... | 10/19/1993 |
| 5238484 | Plant for the production of molten metals and method A plant for the production of molten metals, includes a melting vessel and a metallurgical vessel receiving the melt from the melting vessel for aftertreating the melt and closed by a lid. The melting vessel has a tap opening for the melt provided on the ... | 08/24/1993 |
| 5196157 | Tundish exchange apparatus for a continuous casting equipment Two tundish cars, each detachably carrying a tundish, are supported on continuous circular rails for movement between a pouring position and a standby position spaced along the rails from a pouring position and provided with guide rails mounted above the ... | 03/23/1993 |
| 5094431 | Car bottom furnace system and method of operation thereof A movable car bottom furnace in which premature failure of the metallic components of the movable car bottom are avoided by moving a hinged lower portion of the side wall into engagement with the refractory portion of the car bottom whereby only a refract... | 03/10/1992 |
| 5022635 | Removeable cover for a hot metal transfer car A hot metal transfer car has a pouring mouth and integral apparatus for removably covering the pouring mouth. A track has a first section which is supported by the transfer car at one end and extends upwardly toward its second end. A second section of the ... | 06/11/1991 |
| 4993689 | Convertor for continuously melting scrap with tapping means In a process for continuously melting scrap (6) and/or pig iron within a converter (1), the converter (1) is heated in proximity of the bottom (3) with sub-stoichiometric burners (4), having their flames (5) essentially radially directed into the interior... | 02/19/1991 |
| 4826233 | Vehicular body for hauling hot slag and other materials having a removable metal lining A vehicular body for hauling materials, comprising an external skeletal frame of metal members forming the primary load-bearing structure of the body; a metal lining supported by the skeletal frame and forming the interior surfaces of the body for contain... | 05/02/1989 |
| 4804408 | A mill arrangement and a process of operating the same using off gases to refine pig iron In the operation of mills for the production of steel from molten pig iron and solid ferrous carriers, it is sought for economic reasons to increase the portion of solid ferrous carriers. To supply thermal carriers, such as fossile fuels, as is known, inv... | 02/14/1989 |
| 4742994 | Powered vehicle for operation of ladles, in particular for tapping aluminium A powered vehicle for operating ladles and the like, in particular ladles utilized for tapping molten aluminium, which vehicle comprises an arcuate load-bearing structure substantially of the rigid bridge girder type resting securely on two opposedly loca... | 05/10/1988 |
| 4739974 | Mobile holding furnace having metering pump A mobile holding furnace having a metering pump is adapted to hold a relatively small quantity of molten metal in a contamination-free condition for dispensing to individual molds. The furnace is provided with insulation and electric heating elements for ... | 04/26/1988 |
| 4678167 | Tundish car in a continuous casting assembly A tundish car in a continuous casting assembly which includes wheel supporting frames for supporting a pair of front wheels and a pair of rear wheels, and lift mechanisms respectively mounted above the wheel supporting frames, two pairs of the wheel suppo... | 07/07/1987 |
| 4637591 | Dross cooler and processor The invention provides dross treatment apparatus comprising a drum rotatable about a horizontal axis with means to feed dross to the inside of the drum where it is cooled and broken by tumbling and then removed from the other end of the drum for separatio... | 01/20/1987 |
| 4621793 | Superheated material cooling car with heat deflectors that restrict sideways radiation The invention provides a casting car for use in removing super-heated molten materials from an electric arc melting furnace. The cooling car has a metal frame which includes a shallow container adapted to receive the molten materials. A relatively permane... | 11/11/1986 |
| 4588169 | Arrangement to be used with a tiltable metallurgical vessel An arrangement for the installation or removal of a mouth ring comprised of mouth-ring segments and provided on the mouth of a tiltable metallurgical vessel. In order to simply and quickly install and remove a mouth ring, even if the converter is within a... | 05/13/1986 |
| 4552342 | Method and apparatus for preheating and charging scrap in steelmaking Scrap metal for steelmaking in a converter is preheated by a heating installation and subsequently charged into a charging trough. The preheating takes place in a separate furnace which is aligned parallel to the charging trough. The furnace can be brough... | 11/12/1985 |
| 4524954 | Method of operating a mixer type hot metal car for the transport of molten iron and a device for carrying out the method A hot metal car is used for the transport of molten pig iron from a blast furnace to a steel making plant, the car having an opening through which it is filled and emptied. To restrict heat loss from the car, the opening is closed during at least one of (... | 06/25/1985 |
| 4491074 | Force equalizing mechanism for the wheels of heavy load-carrying rail vehicles A vehicle for transporting heavy loads on parallel tracks is disclosed. Two of the wheels of the vehicle are fixedly mounted to the vehicle frame, while the remaining wheels are mounted so that they can vertically adjust to deviations in the height of the... | 01/01/1985 |
| 4474404 | Vehicular body for hauling hot slag and other materials A vehicular body for hauling materials, comprising an external skeletal frame of metal members forming the primary load-bearing structure of the body; a metal lining supported by the skeletal frame and forming the interior surfaces of the body for contain... | 10/02/1984 |
| 4456230 | Apparatus for the separation of metallic zinc from residues containing zinc An apparatus for separating metallic zinc from zinc-containing residues includes a tank which is coolable by the flow of air through a helicoidal conduit that is open radically to the outside via upper and lower orifices and formed within a chamber surrou... | 06/26/1984 |
| 4436293 | Rotary support for continuous casting ladles This invention presents a rotary support for continuous casting ladles, which comprises a vertical column, a drive mechanism for pivoting this column about its vertical axis, a cross arm structure carried by this column and having at least one of its ends... | 03/13/1984 |
| 4415145 | Metal charge treatment apparatus Apparatus for treating a metal charge comprises a box furnace and a container containing material for treating the charge. The box furnace is mounted on props whose length is sufficient to permit the container to be positioned under the furnace. The furna... | 11/15/1983 |
| 4390170 | Closure plug for ladle car A ladle car opening is closed during the period between pouring and subsequent refilling of the car with molten metal by a closure plug comprised of an open wire mesh support and a lining of fibrous insulating material attached thereto. The plug has a tap... | 06/28/1983 |
| 4389042 | Vacuum degassing apparatus A vacuum degassing apparatus has first and second degassing vessels each separately mounted for independent horizontal movement from a first operative position to a second repair position. In addition, each vessel is independently mounted for vertical mov... | 06/21/1983 |
| 4382584 | Shaft furnace and a method for the operation of the shaft furnace for the melting down of non-ferrous metals in a recycling process, particularly for the melting down of lead A shaft furnace for recycling non-ferrous metals is provided with a crane runway extending horizontally above the furnace opening, on which a movable carrier transports sorting containers to the furnace. The carrier is provided with a lifting and gripping... | 05/10/1983 |
| 4372537 | Method and apparatus for the replacement of bottom closures of track-mounted transfer ladles A method and installation is disclosed for the replacement of a bottom closure of a track-mounted pugh-type transfer ladle having a transfer container supported by two longitudinally spaced-apart bogies which are pivotally attached to the transfer contain... | 02/08/1983 |
