| Patents for F27B 3 - Hearth-type furnaces, e.g. of reverberatory type; Electric arc furnaces (6,383) |
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| 01/21/1998 | CN1170701A Float bath for manufacturing float glass |
| 01/20/1998 | US5709835 Heating molten metal |
| 01/14/1998 | CN2272561Y Horizontal continuous electric heating pot for stir-frying |
| 01/14/1998 | CN2272560Y High-temp electric furnace |
| 01/14/1998 | CN1037011C D. C. furnace for melting scrap iron |
| 01/13/1998 | US5708677 Arc voltage distribution skewness as an indicator of electrode gap during vacuum arc remelting |
| 01/13/1998 | US5707230 Coolable lining for a high-temperature gasification reactor |
| 01/08/1998 | WO1998000568A1 Arc furnace with an electrode receiving chamber |
| 01/08/1998 | WO1998000246A1 Apparatus and method for hazardous waste vitrification |
| 01/08/1998 | DE19626389A1 Lichtbogenofen mit Elektrodenaufnahmeraum Arc furnace electrode receiving space |
| 01/08/1998 | CA2259180A1 Arc furnace with an electrode receiving chamber |
| 01/07/1998 | EP0815279A1 Method and apparatus for heating vessels for molten metal baths |
| 01/06/1998 | US5705123 Metal chip reclamation system |
| 12/31/1997 | CN1169050A Stable ac network able for anti reactive load undulation, and reactive power compensating device |
| 12/30/1997 | CA2070197C Lining for a direct-current electric arc furnace |
| 12/29/1997 | EP0813438A1 Feed processing employing dispersed molten droplets |
| 12/23/1997 | US5700420 Non-oxidizing heating method and apparatus |
| 12/17/1997 | EP0813284A2 Process for stabilizing of an AC network against reactive power fluctuations and reactive power compensating apparatus |
| 12/16/1997 | US5699379 Deglor furnace |
| 12/03/1997 | EP0362253B1 Process for treating liquid metals |
| 11/26/1997 | CN2268911Y Closed dreggiless asphalt boiler |
| 11/26/1997 | CN1166198A Metal fusion furnace and metal fusing method |
| 11/20/1997 | DE19621141A1 Method and apparatus for treating metal melts |
| 11/12/1997 | EP0777844A4 Apparatus and method for the supply of molten metal |
| 11/12/1997 | CN2267445Y Electric furnace forsmelting magnesite |
| 11/11/1997 | US5687187 Process and device for regulating the position of the tip of an electric furnace electrode |
| 11/05/1997 | EP0805327A1 Exhaust device for electric arc furnaces and relative method |
| 11/05/1997 | EP0805326A2 Pour Spout for use in an electric furnace used to melt materials |
| 11/05/1997 | CN2266728Y Horizontal smoke prevention continuous energy-saving hot-air furnace |
| 11/05/1997 | CN1164015A DC arc furnace capable of smelting Si-Al-Fe alloy |
| 10/21/1997 | US5680413 Electric arc melting furnace |
| 10/21/1997 | US5679132 Method and system for injection of a vaporizable material into a molten bath |
| 10/16/1997 | WO1997038141A1 Smelting reduction apparatus and method of operating the same |
| 10/08/1997 | EP0799323A1 Tilting metallurgical unit comprising several vessels |
| 10/07/1997 | US5673900 Reclamation of metal from scrap |
| 10/07/1997 | CA2171027C Industrial furnace with improved heat transfer |
| 10/01/1997 | EP0798389A2 Method of operating an arc furnace and arc furnace |
| 09/30/1997 | US5673285 Concentric electrode DC arc systems and their use in processing waste materials |
| 09/28/1997 | CA2198411A1 Method of operating an arc furnace, and an arc furnace |
| 09/24/1997 | EP0797063A2 Process and modular system to heat an industrial furnace with regenerator burners |
| 09/24/1997 | EP0796351A1 Smelting installation with a current supply network with a relatively short-circuit rating |
| 09/24/1997 | CN2263327Y Enclosed and rolling structure for bogic industrial furnace |
| 09/24/1997 | CN2263326Y Horizontal reciprocating coal-fired device |
| 09/17/1997 | CN1159562A Electric arc controller |
| 09/11/1997 | DE19547885C1 Pneumatic holder for lance manipulator |
| 09/10/1997 | EP0793732A1 Direct current arc furnace with two or more electrodes |
| 09/10/1997 | EP0733299B1 Submerged arc furnace with vertically movable frame |
| 09/10/1997 | CN2262226Y Drying furnace for formed coal |
| 09/09/1997 | US5666377 For delivering power for melting or holding product |
| 09/03/1997 | EP0793400A2 Adapter device for composite electrodes with an auxiliary reactance function on electric arc furnaces |
| 09/03/1997 | EP0628086B1 Tilting device for a direct current arc furnace and process for emptying the furnace |
| 09/03/1997 | CN2261606Y Pyrolysing device of D.C. arc furnace for preparation of cyanides |
| 09/02/1997 | US5662859 Constant molten metal surface level retaining furnace integrally provided with melting unit |
| 08/28/1997 | WO1997031232A1 Electric furnace assembly |
| 08/27/1997 | EP0733300B1 Process and device for regulating the position of the tip of an electric furnace electrode |
| 08/27/1997 | CN2261000Y Suspended ceiling armoured roasting tunnel kiln |
| 08/27/1997 | CN1158147A Process and device for making ferrous iron |
| 08/21/1997 | WO1997030320A1 Iron-base scrap preheating apparatus and method |
| 08/20/1997 | EP0790475A1 Process and apparatus for charging metal ingots into a melting furnace |
| 08/20/1997 | EP0790473A1 Cooling device with panels for electric arc furnaces |
| 08/20/1997 | EP0790472A1 Cooling device with panels for electric arc furnaces |
| 08/20/1997 | CN1157404A Lining sand use technology for electric induction furnace |
| 08/20/1997 | CN1157403A Resistance-capacitance frequency automatic tracking electromagnetic furnace |
| 08/19/1997 | US5658368 Reduced dusting bath method for metallurgical treatment of sulfide materials |
| 08/19/1997 | US5657706 Apparatus for processing and vitrifying waste |
| 08/14/1997 | DE19619919A1 Glass furnace fuel and oxygen introduced in alternating pulses |
| 08/14/1997 | DE19608532A1 Cooling the electrodes in an arc furnace during steel production |
| 08/14/1997 | DE19608531A1 Refining steel to reduce carbon content |
| 08/14/1997 | DE19608530A1 Treating steel in the course of its production in a metallurgical furnace |
| 08/13/1997 | EP0759797A4 Apparatus and method for vitrification of hazardous waste |
| 08/12/1997 | US5656235 Through airlock for refining furnance |
| 08/07/1997 | WO1997028287A1 Method for processing a powdery material, and apparatus therefor |
| 08/06/1997 | EP0787966A1 Process for melting and holding at temperature of metals |
| 08/06/1997 | EP0787810A1 Aluminium remelting furnace, in particular for melting aluminium scrap to be recycled |
| 08/06/1997 | EP0760016A4 Scrap metal gravity feed method and apparatus |
| 08/05/1997 | US5654976 Method for melting ferrous scrap metal and chromite in a submerged arc furnace to produce a chromium containing iron |
| 08/05/1997 | US5653936 Method of cooling a hot surface and an arrangement for carrying out the method |
| 07/31/1997 | WO1997027441A1 Heat regeneration for oxy-fuel fired furnaces |
| 07/31/1997 | WO1997027336A1 Melt reduction equipment and operating method |
| 07/31/1997 | WO1997027335A1 Ladle brick leveling set |
| 07/31/1997 | CA2242106A1 Ladle brick leveling set |
| 07/30/1997 | EP0627012B1 Process for desulphurising irons melts with minimal slag production and suitable device therefor |
| 07/24/1997 | WO1997026101A1 Improved molten metal charge well |
| 07/24/1997 | WO1997026077A1 Calcination using liquid metal heat exchange fluid |
| 07/24/1997 | CA2242906A1 Improved molten metal charge well |
| 07/23/1997 | EP0784708A1 Process and device for making liquid iron by non-electric and electric smelting |
| 07/23/1997 | CN1155065A Cooling system for two-assembly furnace lid |
| 07/17/1997 | DE19612383C1 Arc melting furnace |
| 07/16/1997 | EP0784193A1 Metal fusion furnace and metal fusing method |
| 07/16/1997 | CN1154411A Melting equipment |
| 07/15/1997 | US5648981 Cooling system for a two component furnace roof |
| 07/15/1997 | US5647288 Scrap conveyor having improved scrap pre-heating construction |
| 07/08/1997 | US5646079 Lining hearth of electric furnace with refractory oxide matrix material containing graphite, carbon black, or petroleum coke |
| 07/08/1997 | US5645772 Refractory ceramic mass for lining the bottoms of electric arc furnaces and process for their repair |
| 07/03/1997 | WO1997023419A1 Rotary resistance melting furnace |
| 07/03/1997 | CA2237755A1 Rotary resistance melting furnace |
| 06/26/1997 | DE19548027A1 Elektrischer Widerstandsschmelzofen Electrical resistance furnace |
| 06/24/1997 | US5641336 Side wall of furnace contains an orifice opening into an adjacent tank capped with a vault through which excess flows to prevent damage to furnace |
| 06/19/1997 | WO1997021965A1 Lining of furnace |
| 06/18/1997 | CN1152110A Melt heating method |