| Patents for F27B 5 - Muffle furnaces; Retort furnaces; Other furnaces in which the charge is held completely isolated (2,607) |
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| 12/07/1994 | CN1096096A Uniformly moved toothed belt sintering machine |
| 11/30/1994 | CN2184177Y Stove |
| 11/23/1994 | CN2183546Y Heat treatment quartz chamber for infrared quick heat treatment apparatus |
| 11/23/1994 | CN1095471A Step-by-step tunnel kiln |
| 11/08/1994 | US5362031 Method and apparatus for the automatic monitoring of operating safety and for controlling the progress of the process in a vacuum heat-treatment oven |
| 11/01/1994 | US5360336 Forced cooling apparatus for heat treatment apparatus |
| 10/26/1994 | EP0621345A1 Process and device for heat-treating workpieces |
| 09/14/1994 | EP0615106A2 Electric heat treating furnace |
| 09/14/1994 | CN2177211Y Natural oxygen adjusting baking furnace |
| 08/31/1994 | CN2175910Y Positive and negative pressure sintering apparatus |
| 08/27/1994 | CA2116386A1 Electric heat treating furnace |
| 08/24/1994 | CN2175389Y Induction furnace refinery equipment by making use of column vacuum chamber |
| 08/18/1994 | DE4404263A1 Vacuum brazing furnace for aluminium, and aluminium brazing process |
| 08/11/1994 | DE4403275A1 Furnace for thermal treatment under vacuum |
| 08/04/1994 | WO1994017353A1 A rapid thermal processing apparatus for processing semiconductor wafers |
| 08/03/1994 | CN2173380Y Pure blast gas ignitor for sintering machine |
| 07/21/1994 | WO1994016278A1 Vacuum furnace for thermal treatment |
| 07/20/1994 | CN2172451Y Infrared energy saving resistance furnace |
| 07/19/1994 | CA1330743C Apparatus for and method of chromizing articles |
| 07/06/1994 | CN2171095Y Box type infrared electric resistance stove |
| 06/28/1994 | US5324920 Heat treatment apparatus |
| 06/21/1994 | US5323484 Heating apparatus with multilayer insulating structure |
| 06/08/1994 | CN2168222Y 隧道窑 Tunnel kiln |
| 06/01/1994 | CN2167341Y Charging and distributing arrangement for sintering machine |
| 06/01/1994 | CN1024836C High efficient power saving medium temp. electric resistance furnace |
| 05/18/1994 | EP0597053A1 Device for heat-treating a magazine for lead frames with electronic components. |
| 05/18/1994 | CN2165396Y Flap top-lid baking furnace |
| 05/18/1994 | CN1024568C Control method and apparatus for carbon potential of continuous drop carburization furnace |
| 05/03/1994 | US5308955 Vertical heat treatment apparatus with vented heat insulation cover means |
| 04/20/1994 | CN2162635Y Coating cylinder cover with vacuum fusion compound material |
| 04/13/1994 | CN2161886Y 加热炉 Furnace |
| 03/30/1994 | CN1084632A Process of defreezing material by using heat in waste gas |
| 03/23/1994 | CN2159541Y Energy saving fritting furnace |
| 03/02/1994 | CN2158066Y Electric heating furnace using carbon and inorganic metal oxidate as electrical heating body |
| 03/01/1994 | US5290189 High temperature industrial heat treat furnace |
| 02/23/1994 | CN2157471Y Secondary cooling device for pellet shaft furnace |
| 02/23/1994 | CN2157470Y Step-type tunnel kiln |
| 02/09/1994 | EP0582006A1 Method for producing high-purity metallic chromium |
| 02/09/1994 | CN2155543Y Briquet stove for light firing magnesium |
| 02/09/1994 | CN2155542Y Dynamic electric roasting apparatus for diatomite filter aid |
| 02/09/1994 | CN2155541Y Temperature and humidity guarantee device for use in brickkilns |
| 02/03/1994 | DE4225250A1 Vacuum furnace for excess pressure dissipation used in steel hardening - has sepd. housings for back cooler and turbine for accelerating cooling gas and further housing contg. heating chamber |
| 01/19/1994 | CN1023577C Full automatic tunnel furnace |
| 12/23/1993 | WO1993026137A1 High performance horizontal diffusion furnace system |
| 12/22/1993 | EP0574926A2 Process and apparatus for producing silicon nitride ceramic |
| 12/22/1993 | CN2150507Y Microwave-medium resonance heat-insulating device |
| 12/14/1993 | CA2043935C Internal heat exchange tubes for industrial furnaces |
| 12/09/1993 | WO1993024801A1 Device for heat-treating a magazine for lead frames with electronic components |
| 11/30/1993 | US5267257 Vacuum furnace with convection heating and cooling |
| 11/17/1993 | CN2146689Y Movable four-hole pushed-bat tunnel coalpit |
| 11/10/1993 | CN2145968Y Microwave sealing dissolved sample pot with pressure indicator |
| 10/27/1993 | EP0302121B1 Heating furnace for glass materials for optical fiber and method of manufacturing same |
| 10/26/1993 | US5256061 Method and apparatus for vacuum furnace with self sealing expansion door members |
| 10/20/1993 | CN2144284Y Resistance furnace for annealing aluminium material |
| 10/19/1993 | CA1323193C Furnace for heating glass preform for optical fiber and method for producing glass preform |
| 10/12/1993 | US5252062 Thermal processing furnace |
| 10/06/1993 | CN2143315Y Muffle furnace |
| 10/05/1993 | US5249960 Forced cooling apparatus for heat treatment apparatus |
| 08/25/1993 | EP0420939B1 Apparatus for and method of chromizing articles |
| 08/11/1993 | EP0555199A2 Vacuum chamber oven for the thermal treatment of metal work pieces |
| 08/11/1993 | CN2140043Y Steel hawk-moving tunnel type electric heating furnace |
| 07/14/1993 | CN2138123Y Microwave resonance temp. Keeper |
| 07/06/1993 | US5225155 Methods and apparatus for firing extruded metals |
| 07/06/1993 | US5225142 Method and apparatus for the automatic monitoring of operating safety and for controlling the progress of the process in a vacuum heat-treatment oven |
| 07/06/1993 | US5224857 Radiant tube arrangement for high temperature, industrial heat treat furnace |
| 06/30/1993 | CN1021462C Agitator for atomosphere reforming in continuous heat-treating furnace |
| 06/09/1993 | CN2135759Y Split moving hood type electric resistance stove |
| 05/26/1993 | CN2134633Y Efficiency, energy-saving drawer type pipe type resistance furnace |
| 05/19/1993 | EP0542724A2 Furnace for heating glass preform for optical fiber and method for producing glass preform |
| 05/12/1993 | EP0541165A2 Device for ring section furnace |
| 05/12/1993 | CN1071969A Ni-mo-rare-earth alloy boat for reduction of w-mo powder |
| 03/31/1993 | CN2129007Y Extraction type sintering electric furnace |
| 03/24/1993 | CN2128722Y Heating apparatus for vacuum heat treating furnace |
| 03/16/1993 | US5193998 Sealing arrangement for heat treatment apparatus |
| 03/10/1993 | CN2127993Y Double inclined strap sintered point furnace |
| 02/17/1993 | CN2127166Y Multi-functional chemical heat treating electric stove chemical |
| 01/27/1993 | EP0524438A2 Methods and apparatus for firing extruded metals |
| 01/27/1993 | EP0524368A1 Automatic apparatus for monitoring and control of a vacuum thermal treatment furnace |
| 01/27/1993 | CN2126652Y High-temp radiation oven for heating powdery material |
| 01/26/1993 | CA1313043C Vacuum oven for the heat treatment of metal workpieces |
| 12/22/1992 | US5173124 Rapid gas quenching process |
| 12/16/1992 | CN1067073A Method and apparatus for control of carbon in continuous dripping carburizing furnace |
| 12/09/1992 | CN1066919A High efficient power saving drawer type multitubular resistance furance |
| 12/02/1992 | CN2123744U Pipe low-oxidizing energy-saving quenching furnce |
| 11/25/1992 | CN1019173B Vertical pressurized continuous sintering furnace |
| 11/11/1992 | CN2121666U Three segment heating microcomputer vertical vacuum oven |
| 10/29/1992 | DE4113458A1 Vacuum furnace for heat treatment of metal parts - has cover walls inside heating chamber to confine carriage area to minimal size thereby increasing cooling effects of blown gas |
| 10/13/1992 | CA1308631C Process for the thermal treatment of metal workpieces in a vacuum |
| 09/30/1992 | CN2117579U Energy saving arrangement of electric heating tunnel furnance |
| 09/23/1992 | CN2116871U Small sintering machine |
| 09/23/1992 | CN2116870U Transmission mechanism of sintering machine |
| 09/02/1992 | CN2114799U Separated reflection furnace |
| 07/22/1992 | CN1062970A Full automatic tunnel furnace |
| 07/15/1992 | CN2110196U Automatic elecator rotary refractory determination stove |
| 07/08/1992 | CN2109535U Sectioned wind exhausting sintering machine |
| 06/24/1992 | CN1017182B Means of controlling gas flow in vacuum furnace |
| 06/23/1992 | US5123832 Hot isostatic press |
| 06/17/1992 | DE4039711A1 High temp. furnace - has long heating chamber fitted in insulated housing, at least on heat conductor and at least one temp. sensor |
| 06/16/1992 | US5121903 Quenching arrangement for a furnace |
| 06/09/1992 | US5121406 Induction melting furnace |