| Patents for F27D 21 - Arrangement of monitoring devices; Arrangements of safety devices (2,784) |
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| 05/20/1992 | EP0486462A1 Method and arrangement for preventing crusts from agglomerating in metallurgical vessesl |
| 05/19/1992 | US5115447 Arc furnace electrode control |
| 05/19/1992 | CA1301373C Monitoring pyrogenic processes |
| 05/15/1992 | CA2055044A1 Method and arrangement for preventing crusts from agglomerating in a metallurgical vessel |
| 05/14/1992 | WO1992008088A1 Distance measurement in furnaces |
| 05/05/1992 | US5110287 Infra-red burner system for furnaces |
| 04/23/1992 | DE4033116A1 Fire-resistant polymer materials for high-temp. applications - contain high- or low-pressure polyethylene@, polypropylene@ or polystyrene, with dried water-glass and/or dried lignin and/or zeolite |
| 04/21/1992 | US5106201 Device for measuring the radiation temperature of a melt in vacuum |
| 04/08/1992 | EP0479757A1 Process and apparatus for the manufacture of titanium-(aluminum) base alloys |
| 03/24/1992 | USRE33857 Imaging of hot infrared emitting surfaces obscured by particulate fume and hot gases |
| 03/18/1992 | EP0474682A1 Closed remelting furnace with a plurality of horizontally mobile bottom elements |
| 03/10/1992 | US5094605 Flash removal device in a plant for production of mineral wool |
| 03/05/1992 | WO1992003240A1 Device for tapping vehicle for metal melts |
| 03/04/1992 | CN2097991U Seal rotary watching hole device of heating furnace |
| 02/19/1992 | EP0471427A2 Installation for charging of melting furnaces |
| 02/18/1992 | CA1296039C Induction furnace packaging system |
| 02/13/1992 | DE4025541A1 Wear and tear detection for molten metal containers - by equipping bricks from cladding with borehole and putting an insert in borehole made of different refractory than brick |
| 02/05/1992 | EP0469312A2 A temperature sensor |
| 01/29/1992 | EP0468203A1 Device for protection of electrical heated vacuum furnace |
| 01/21/1992 | US5082044 Method and apparatus for controlling the composition of a molten metal bath |
| 11/14/1991 | WO1991017391A1 A cooler for cooling of particulate material, especially fine-grained dust |
| 11/12/1991 | US5065009 Method for detecting roller breakdowns in roller hearth kiln systems |
| 11/05/1991 | US5063518 Alarm system for a crystal growing furnace |
| 10/23/1991 | EP0452624A1 Plumbline device to determine the height of charge in a shaftfurnace |
| 10/22/1991 | US5058288 Plumb bob device for determining the bed height of bulk material in a shaft furnace |
| 10/09/1991 | EP0451078A1 Sampler for blast furnace |
| 10/09/1991 | EP0451075A1 Device for induction heating of metal workpieces |
| 10/09/1991 | CN1014270B Apparatus for charging material to be sintered into sintering machine |
| 10/04/1991 | CA2038977A1 Sampling probe, especially for blast furnaces |
| 10/01/1991 | US5052661 Controlling heat treating furnaces |
| 09/17/1991 | US5048333 Material level checking apparatus for use in a rotating member |
| 09/04/1991 | EP0445090A1 A flash removal device in a plant of production of mineral wool |
| 08/21/1991 | EP0442382A2 Controlling heat treating furnaces |
| 07/30/1991 | US5035597 Apparatus for manufacturing multi-element sintered material |
| 07/30/1991 | CA1287144C Apparatus for detecting slag flowing along in a stream of a metal melt |
| 07/25/1991 | DE4001480A1 Automatic adjustment of sealing shutter - has motors responding to gap measured using video cameras |
| 07/16/1991 | US5032173 Aluminum furnace charging system and process of changing |
| 07/09/1991 | US5029821 Injection of halogen, sampling, detection |
| 07/09/1991 | US5029533 Pressure relief mechanism |
| 04/25/1991 | DE4003728C1 Uneven rotation detector for transport rollers in tunnel furnace - has measuring units for devices assigned to rollers to deliver magnetic, EM, acoustic or optical signals |
| 04/03/1991 | EP0420663A2 Hot kiln alignment system |
| 04/02/1991 | CA1282485C Induction furnace packaging system |
| 03/26/1991 | US5002262 Apparatus for charging material to be sintered into a sintering machine |
| 03/06/1991 | EP0415611A1 Method for detecting roller breakdowns in roller hearth kiln systems |
| 03/05/1991 | US4997077 Method and apparatus for the positioning of slabs |
| 02/26/1991 | US4995270 Molten metal sampling |
| 02/26/1991 | CA1280622C Method and device for monitoring combustion in furnace |
| 02/07/1991 | CA2015524A1 Clean window for processing enclosure |
| 02/05/1991 | US4989841 Metal continuously melting and retaining furnace |
| 01/29/1991 | US4989218 Induction heating type metal melting furnace |
| 01/23/1991 | EP0271580B1 Method of torch guniting of metallurgical plant |
| 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 |
| 01/15/1991 | US4984904 Thermocouple in protective tube |
| 01/08/1991 | US4983112 Interlocking device for hot isostatic pressurizing equipment |
| 01/06/1991 | CA2012238A1 Furnace enclosure having a clear viewpath |
| 01/03/1991 | DE4020612A1 Low pressure melting furnace - uses compressed gas to drive molten metal into mould |
| 12/13/1990 | WO1990015163A1 Closed remelting furnace with a plurality of horizontally mobile bottom elements |
| 11/29/1990 | WO1990014569A1 High-temperature gas-burning furnace |
| 11/06/1990 | US4969035 Observation of furnace interior |
| 10/31/1990 | EP0210981B1 Imaging of hot infrared emitting surfaces obscured by particulate fume and hot gases |
| 10/24/1990 | EP0393593A2 Method of monitoring cement kiln and the apparatus therefor |
| 10/23/1990 | US4965813 Combustion aiding apparatus for steel-making electric-arc-furnace |
| 10/18/1990 | WO1990012295A1 Temperature-controlled bodies |
| 10/17/1990 | EP0392068A1 Vacuum induction furnace |
| 09/26/1990 | CN2062815U Preventing and safety protector for eruption of cement vertical kiln |
| 09/20/1990 | WO1990010720A1 Detection of the molten steel-slag interface by spectrophotometry during tapping of the basic oxygen converter |
| 09/20/1990 | DE3907900A1 Cap for a probe |
| 09/18/1990 | US4957374 Tunnel furnace height detector |
| 09/06/1990 | DE3918648A1 Sample extractor for steel industry - consists of tube with mould, silicon glass-tube with steel cap, and chamber connected through passage to mould |
| 08/28/1990 | US4952780 Computerized multi-zone crystal growth furnace |
| 08/21/1990 | US4951298 Closed remelting furnace having several horizontally movable furnace lower portions |
| 08/16/1990 | EP0382378A2 Pressure relief mechanism for a furnace |
| 08/14/1990 | US4948365 High-temperature, gas-burning furnace |
| 08/09/1990 | WO1990008933A1 A shield for an electromagnetic agitator |
| 08/08/1990 | EP0381587A1 Continuous-sintering furnace |
| 08/04/1990 | CA2008952A1 Safety apparatus |
| 07/05/1990 | DE3844273A1 Melting and casting installation |
| 06/27/1990 | EP0374642A1 Observation of furnace interiors |
| 06/20/1990 | CA2006035A1 Observation of furnace interiors |
| 06/05/1990 | US4931624 Thermal distortion free viewing of a heated cavity |
| 05/30/1990 | EP0227681B1 Manipulator at furnaces and the like |
| 05/10/1990 | DE3906244C1 Directly heatable, pot-shaped crucible, in particular for the hot extraction of metallic specimens |
| 05/01/1990 | US4922505 Plant for utilization of exhaust gases of an electric steel furnace |
| 05/01/1990 | US4921221 Monitoring pyrogenic processes |
| 04/25/1990 | EP0364825A1 Apparatus for taking discontinuous measurements on molten metal |
| 04/25/1990 | EP0364578A1 Inspection apparatus for hot furnace |
| 04/19/1990 | DE3835429A1 Method and device for the determination of the flow quantity of a hot liquid |
| 04/17/1990 | US4918705 Furnace enclosure having a clear viewpath |
| 04/11/1990 | CN1041215A Apparatus for charging material to be sintered into sintering machine |
| 03/27/1990 | US4912302 Furnace for sintering ceramics, carbon heater used therefor and process for sintering ceramics |
| 03/21/1990 | EP0359108A1 Apparatus for charging material to be sintered into a sintering machine |
| 03/20/1990 | CA1266787A1 Immersion pyrometer |
| 03/06/1990 | US4907177 Computerized multi-zone crystal growth furnace precise temperature and heating control method |
| 02/13/1990 | US4900900 Method and apparatus for controlling a-c power by means of thyristors for a resistance-type electric furnace |
| 02/01/1990 | DE3925147A1 Hot isostatic pressing equipment interlocking safety device |
| 02/01/1990 | DE3825859A1 Annealing muffle with a round profile |
| 01/16/1990 | US4893933 Automatic BOF vessel remaining lining profiler and method |
| 01/16/1990 | US4893912 Device for observing a hot reaction space in the interior of a reactor operating at increased pressure |
| 01/16/1990 | US4893895 An improved encased high temperature optical fiber |
| 01/10/1990 | CN2050960U Separating type sampler for carburize layer |