| Patents for F27D 3 - Charging; Discharging; Manipulation of charge (11,678) |
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| 03/13/1991 | EP0305426B1 Installation for pouring liquid metal, and process for its implementation |
| 03/13/1991 | CN1011980B Feed hopper for loading installation of shaft furnace |
| 03/07/1991 | DE3928671A1 Removal of slag from melting furnace - has electromagnetic stirrer causing flag to become trapped in side chamber from where it is removed at regular intervals |
| 03/05/1991 | US4997077 Method and apparatus for the positioning of slabs |
| 02/28/1991 | DE3927579A1 Cooling of hot solid material - by first stage with contra-flow of air and second stage with cross-flow of air |
| 02/27/1991 | EP0414308A1 Tap hole construction of a metallurgical vessel, method of renewing it and brick for use with it |
| 02/27/1991 | CN1049464A Closing and regulating devices for metallurgical container |
| 02/26/1991 | US4996402 Method and apparatus for continuously melting material by induction heating |
| 02/26/1991 | US4995596 Apparatus for repairing a perforated brick in a metallurgical vessel |
| 02/26/1991 | US4995594 Slag stopping plug for tap holes of metal furnaces containing molten material |
| 02/21/1991 | WO1991001825A1 Flexible conveyance and guidance roller for use in metalworking furnace structures |
| 02/20/1991 | EP0413100A2 Closing and controlling device for a metallurgical vessel |
| 02/19/1991 | CA1280288C2 Multi-purpose pyrometallurgical process enhancing device |
| 02/13/1991 | CN2071321U High temp. resistance anti-oxidation flame-retarded oxygen blowing jet |
| 02/13/1991 | CN2071320U Scissors pushing electromechanical trailer |
| 02/13/1991 | CN1049187A Gas injector |
| 02/13/1991 | CA2023071A1 Closure and control element for a metallurgical vessel |
| 02/12/1991 | US4991276 Flexible conveyance and guidance roller for use in metalworking furnace structures |
| 02/12/1991 | US4991275 Roller assembly |
| 02/12/1991 | CA1279995C Recovery of metals from their alloys with lead |
| 02/07/1991 | CA2015524A1 Clean window for processing enclosure |
| 02/06/1991 | CN1011516B Apparatus for controlling hydraulic jacks fixed to slewing hopper |
| 02/05/1991 | US4989842 Device for charging and discharging a tilting smelting furnace with a removable crucible |
| 02/05/1991 | US4989841 Metal continuously melting and retaining furnace |
| 02/05/1991 | US4989839 Automatic tuyere puncher |
| 01/30/1991 | EP0410838A1 Transport roller for glass-sheets |
| 01/30/1991 | EP0410094A1 Tongs for discharge of billets from an induction heating device |
| 01/29/1991 | US4989218 Induction heating type metal melting furnace |
| 01/27/1991 | CA2022331A1 Liquid metal processing |
| 01/27/1991 | CA2021321A1 Apparatus and method for shrouding of liquid steel during filling of ingot molds |
| 01/24/1991 | DE3938687A1 Slag stopper for converter |
| 01/23/1991 | CN1048670A Refractory stator/rotor unit for closure of outlet of molten metal container |
| 01/22/1991 | US4986847 Efficient supplying |
| 01/22/1991 | US4986750 Furnace |
| 01/22/1991 | US4986516 Sealing shutter for a shaft furnace |
| 01/22/1991 | CA1279188C Melting furnace having a rotary drum which can be inclined to slope to either end swivelled about a vertical axis |
| 01/17/1991 | DE4021391A1 Observation window cleaning in process chamber contg. fine particles - inert gas is fed into chamber behind lens through porous inner pipe and leaves via opening into main process chamber |
| 01/16/1991 | EP0408165A1 Dispersing gas into molten metal |
| 01/16/1991 | EP0407845A1 Installation for preventing respectively decreasing flush slag entering into the spout of a converter |
| 01/16/1991 | EP0407786A1 Transfer tube with insitu heater |
| 01/16/1991 | EP0407712A2 Refractory stator/rotor unit for a nozzle gate in a vessel holding molten metal |
| 01/15/1991 | US4984952 Charging appliance for melting units |
| 01/15/1991 | US4984769 Tap spout for metallurgical vessels and method of repairing |
| 01/12/1991 | CA2020741A1 Refractory stator/rotor unit for a valve in the outlet of a vessel containing a metal melt |
| 01/10/1991 | CA2012235A1 Transfer tube with insitu heater |
| 01/08/1991 | US4982936 Furnace |
| 01/08/1991 | CA1278679C Solid particle accelerating tuyere adapter device |
| 01/06/1991 | CA2012238A1 Furnace enclosure having a clear viewpath |
| 01/02/1991 | CA1278443C Heat retaining means |
| 12/18/1990 | US4978108 Gas washing sink without integral closure member |
| 12/13/1990 | WO1990015163A1 Closed remelting furnace with a plurality of horizontally mobile bottom elements |
| 12/12/1990 | EP0401305A1 Sagger loading apparatus and a method of loading a sagger |
| 12/11/1990 | CA1277486C Method and installation for the maintenance of an oven's lining |
| 12/10/1990 | WO1990015161A1 Device for removing worn nozzle bricks or nozzle linings from metallurgical vessels |
| 12/10/1990 | CA2033185A1 Device for removing worn nozzle bricks or nozzle linings from metallurgical vessels |
| 12/05/1990 | EP0400351A1 Process and device for firing tubes, especially ceramic tubes, preferably externally glazed drainage pipes having sleeves |
| 12/05/1990 | EP0400329A2 Process and apparatus for making large sized porous elements having low density through swelling |
| 12/04/1990 | CA1277138C Method of assembling a gas circulation block provided for metallurgical vessels |
| 12/04/1990 | CA1277137C Closure apparatus for a tap hole in the bottom of a metallurgical vessel |
| 11/29/1990 | WO1990014569A1 High-temperature gas-burning furnace |
| 11/29/1990 | DE3917231A1 Raking machine with tandem construction for tapping furnaces - has raking machine and manipulator which carry heavy raking rod with adjustable vertical and horizontal position |
| 11/27/1990 | CA2014406A1 Process and apparatus for the manufacture of large-size porous shaped bodies of low density by swelling |
| 11/27/1990 | CA1276785C Powder feeder |
| 11/20/1990 | US4971295 Safety-type gas washing sink having improved heat dissipation properties |
| 11/20/1990 | US4971294 Induction heated sliding gate valve for vacuum melting furnace |
| 11/20/1990 | CA1276471C Process and lance for the production of a bath of molten metal or alloys |
| 11/15/1990 | WO1990013381A1 Induction melting and casting furnace |
| 11/14/1990 | EP0397231A1 Roller for transporting hot objects |
| 11/13/1990 | US4969940 Apparatus and method for making mineral wool from coal-ash |
| 11/13/1990 | US4969818 Truck for firing furnace |
| 11/07/1990 | EP0304466B1 Device for liquid pumping |
| 11/01/1990 | WO1990012895A1 Gas injector |
| 10/31/1990 | EP0395203A2 Refractory supports |
| 10/31/1990 | DE3913585A1 Heat treatment system for soldering circuit boards - has boards transferred by continuous feeding in cassettes through heating system |
| 10/31/1990 | CN1010222B Post-mix method and system for supply of powderized materials |
| 10/30/1990 | US4966548 Grate cooler device for the heat treatment of bulk material |
| 10/24/1990 | EP0393731A1 Process for preparing a substance with hydraulic binding properties and substance prepared with this process |
| 10/24/1990 | EP0393292A1 Device to support rolls in a roller conveyor furnace |
| 10/24/1990 | CN1046300A Closing and /or regulating device for metallurgical container |
| 10/24/1990 | CN1010106B Improvements in apparatus for injecting substances into liquids |
| 10/23/1990 | US4965813 Combustion aiding apparatus for steel-making electric-arc-furnace |
| 10/18/1990 | WO1990010086A3 Melting aggregate with shaft for preheating charged materials |
| 10/18/1990 | DE3941074A1 Highly automated firing plant - used for firing glazed stoneware pipes |
| 10/17/1990 | EP0392910A1 Process and apparatus for the preparation of the eutectic alloy lithium-lead with formula lithium 17%-lead 83% |
| 10/17/1990 | EP0392168A1 Shut-off and/or control element for a metallurgical vessel |
| 10/17/1990 | EP0392067A1 Vacuum induction furnace |
| 10/11/1990 | CA2014245A1 Closure and/or control element for a metallurgical vessel |
| 10/10/1990 | CN1045935A Sliding valve and refractory parts of valve at vessel outlet for molten metal |
| 10/09/1990 | US4961683 Device for aligning and lifting blocks in kiln cars |
| 10/03/1990 | CN2063216U Ring turnover device for brick-kiln with rails |
| 10/01/1990 | WO1990011854A1 A sliding closure at the outlet of a vessel, especially one containing molten metal, and suitable fireproof closure components |
| 10/01/1990 | CA2030545A1 Sliding gate valve at the outlet of a vessel containing, in particular, metal melt and associated refractory valve members |
| 09/26/1990 | CN1045642A Smelting plant with shaft-like material preheater |
| 09/25/1990 | CA1274386A1 Device for placing slag retention means in tapping converter |
| 09/19/1990 | EP0388206A1 Apparatus for driving rollers in roller hearth kiln |
| 09/19/1990 | CN2062430U Sintering trolley |
| 09/18/1990 | US4957374 Tunnel furnace height detector |
| 09/12/1990 | EP0386949A2 Ceramic tubes and their manufacture |
| 09/12/1990 | EP0386227A1 Refractory liner compositions |
| 09/10/1990 | CA2011190A1 Ceramic tubes and their manufacture |