| Patents for F27B 9 - Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity (7,954) |
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| 02/06/1992 | DE4121118A1 Roller kiln for ceramics |
| 02/06/1992 | DE4021442A1 Tunnel kiln - has combustion chambers in enlarged kiln mantle at the firing zone or at the transfer from the preheating zone |
| 02/05/1992 | EP0470063A2 Method and apparatus for graphitization of carbon bodies |
| 02/05/1992 | EP0469522A1 Production method and apparatus for vapor-grown fine fibers |
| 02/05/1992 | EP0469230A1 Heat resistant alloy foil lining for kilns and method of lining kiln |
| 02/04/1992 | CA2032701A1 Heat resistant alloy foil lining for kilns and method of lining kiln |
| 02/02/1992 | CA2047934A1 Process and apparatus for graphitizing carbon bodies |
| 01/28/1992 | CA1294750C Process for the densification of material preforms |
| 01/21/1992 | CA1294494C Walking beam furnace |
| 01/14/1992 | CA1294126C Reheating furnace with rotating-flame burners for slabs and billets |
| 01/14/1992 | CA1294125C Heating and handling system for object |
| 01/08/1992 | EP0464036A1 Process and device for processing monofilaments. |
| 01/08/1992 | CN2092731U Self-seal type sang sealing equipment for trolley furnace |
| 01/08/1992 | CN2092730U Double tunnel type electric furnace |
| 01/07/1992 | CA1293893C Conveyor oven design and method for using same |
| 01/02/1992 | EP0463290A1 Furnace wagon with replaceable support elements |
| 01/02/1992 | EP0463131A1 Process and apparatus for burning blanks in continuous passage |
| 01/02/1992 | EP0238598B1 An oven for the burn-in of integrated circuits |
| 01/02/1992 | DE4020920A1 Continuous preheating furnace allowing uniform heating - comprising section plates for holding workpieces which are transferred from loading station to transport device for plastic workpieces |
| 12/31/1991 | US5075953 Method of and apparatus for storing products from continuous casting lines prior to rolling |
| 12/27/1991 | EP0462678A1 Apparatus for treating pulverulent raw material such as calcium sulphate for the preparation of a hydraulic binder |
| 12/25/1991 | CN2091440U Net belt type bidirection transmission heat treating furnace |
| 12/22/1991 | WO1991019685A1 Apparatus for treating a powdered base material such as calcium sulphate in order to produce a binder |
| 12/22/1991 | CA2064775A1 Processing plant of pulverulent materials such as calcium sulfate for producing cementing material |
| 12/18/1991 | CN2090956U Air furnace special for heating seal head of boiler and pressure container |
| 12/12/1991 | DE4017921A1 Tunnel furnace giving effective redn. of rubbish - consisting of trolleys to carry refuse and expanding gas transferred to burner |
| 12/11/1991 | CN1056852A Process and apparatus for graphitizing carbon bodies |
| 12/04/1991 | EP0459970A1 Process and apparatus for graphitizing carbon bodies |
| 12/03/1991 | US5069618 Method and kiln for firing ceramic articles |
| 12/01/1991 | CA2041399A1 Process and apparatus for graphitizing carbon bodies |
| 11/28/1991 | WO1991018250A1 Graphitization process and furnace |
| 11/27/1991 | CN1056569A Glass sheet heating furnace |
| 11/21/1991 | DE4016227A1 Tunnel kiln has initial drier - to dry brick blanks and burn off residue in continuous passage into kiln |
| 11/20/1991 | CN2089152U Fuel saving high production mechanical vertical kiln |
| 11/14/1991 | WO1991017644A1 Process and devices for the induction heating of a moving elongate metallurgical product |
| 11/14/1991 | DE4014693A1 Burner for combustion chamber of a tunnel furnace - uses coanda effect to control supply of combustion air |
| 11/14/1991 | DE4014506A1 Combustion gas flow modulation for ceramics - by periodic change between extreme values to give temp. adjustment in firing zone of tunnel kiln. |
| 11/14/1991 | DE4014505A1 Combustion gas mass pulse modulation - uses overlay of harmonic mass pulse oscillation on the base value to improve heat transfer to material in a tunnel kiln |
| 11/12/1991 | US5065009 Method for detecting roller breakdowns in roller hearth kiln systems |
| 10/30/1991 | EP0453696A1 A tunnel kiln |
| 10/29/1991 | CA1291332C Rotary hearth multi-chamber, multi-purpose furnace system |
| 10/23/1991 | CN1055496A Stocking device for stock of metallurgical products such as thin slab |
| 10/22/1991 | US5059117 Radiant tube furnace and method of burning a fuel |
| 10/22/1991 | CA1290910C Heat treating thermoplastics sheet materials for thermo-forming |
| 10/10/1991 | DE4017318C1 Pottery kiln for forming ceramic tableware - has infeed roller table, with additional table at entry acting as accumulator |
| 10/09/1991 | EP0451075A1 Device for induction heating of metal workpieces |
| 10/09/1991 | CN2086403U Four-tube slewing type calcining furnace |
| 10/09/1991 | CN1014269B Furnace for the heat treatment of work pieces |
| 10/09/1991 | CN1014268B Annealing furnace |
| 10/02/1991 | CN2085942U Heat treatment furnace with full-fibrofelt lining using residual-oil |
| 09/25/1991 | EP0447663A1 Continuous furnace for the heat treatment of work pieces |
| 09/25/1991 | CN1014078B Process for heat treatment of metallic pieces by continous furnace and apparatus thereof |
| 09/24/1991 | CA1289355C Drying furnace for use in coating drying |
| 09/24/1991 | CA1289311C Baking furance for electrodes |
| 09/19/1991 | DE4008516A1 Glass pane roller hearth furnace - has temp. control for upper heaters according to panel size and movement |
| 09/19/1991 | DE4008313A1 Walking beam type heat treatment furnace - for continuous stepwise processing of material esp. plates, comprises alternating gps. of transport beams across furnace width |
| 09/18/1991 | CN1054577A Gas fired radiant heater for furnace floor |
| 09/11/1991 | CN2084596U Landslip moving card rapid burning power saving kiln |
| 09/11/1991 | CN1013875B Method of operating reactor for gasifying solid fuels |
| 09/10/1991 | US5046946 Process for firing ceramic shaped bodies and a tunnel kiln used therefor |
| 09/05/1991 | WO1991013307A1 Continuous firing furnace |
| 09/05/1991 | WO1991013306A1 Reaction furnace |
| 09/05/1991 | WO1991013037A1 Furnace and conveyor method for heating glass sheets |
| 09/05/1991 | DE4006361A1 Tunnel kiln has jets in cover - to be brought into heating zone to maintain constant temp. |
| 09/04/1991 | CN1013806B Roller for transpting steel matallurgical products moving in stove |
| 09/03/1991 | US5044944 Furnace of decreasing oxygen concentration to ultra low amount |
| 09/03/1991 | US5044920 Heat treatment apparatus for continuously advanced material |
| 08/29/1991 | DE4006047A1 Throughflow HF treatment oven - has auxiliary electrode on one or both sides of main HF electrode |
| 08/28/1991 | EP0443947A1 Furnace for reheating sheets of glass |
| 08/28/1991 | EP0443744A1 Kiln casing |
| 08/27/1991 | US5042452 Radiating tubes system for heating ovens |
| 08/13/1991 | US5040236 Apparatus for irradiation of printed wiring boards and the like |
| 08/13/1991 | US5039841 Reflow furnace |
| 08/08/1991 | WO1991011397A1 Gas fired radiant heater for furnace floor |
| 08/08/1991 | DE4013505C1 Tunnel kiln for ceramics - incorporates counterflow offtake channels for gases evolved during firing |
| 07/31/1991 | EP0439336A2 Improvements of temperature distribution for kilns |
| 07/30/1991 | US5035036 Arrangement for manufacturing steel strips |
| 07/24/1991 | EP0437913A1 Glass treating furnace with roller conveyor |
| 07/24/1991 | CN2081519U Kiln vehicle |
| 07/23/1991 | US5034586 Induction heating assembly including an interposed closed conductive loop for suppression of intercoil coupling |
| 07/23/1991 | US5033927 Device for carrying out sequential thermal treatments under a vacuum |
| 07/18/1991 | DE4037379A1 Lining up rows of magnetisable workpieces - involves magnets to set down workpieces on discharge conveyor |
| 07/11/1991 | DE4041217A1 Driven roller for continuous heating furnace - has core tube enclosed in removable layer of thermal insulation |
| 07/11/1991 | DE4008631C1 Furnace conveyor cooling method - has coolant fed to immersion troughs to cool conveyor trolley |
| 07/02/1991 | US5028250 Glass sheet heating furnace |
| 06/26/1991 | EP0434487A1 Stocking device for metallurgical products, such as thin slabs |
| 06/26/1991 | EP0293434B1 Method for heating mineral fibers |
| 06/26/1991 | EP0124574B1 Method and apparatus for the manufacture of non-allergy creating precious metal objects |
| 06/20/1991 | DE3941467A1 Firing of electrode rods to form graphite - uses metal tube with preforms pushed steadily along while surrounded by hot gas |
| 06/20/1991 | DE3941466A1 Furnace for firing carbonaceous parts to form graphite - comprises single tube heated with hot gas and has preheating chamber to drain excess binder and other liquids easily |
| 06/20/1991 | DE3941465A1 Firing furnace for raw materials - circulating gas through heating tube and controlling oxygen level |
| 06/16/1991 | WO1991008991A1 Process and apparatus for burning blanks in continuous passage |
| 06/16/1991 | CA2049061A1 Process and apparatus for burning blanks in continuous passage |
| 06/11/1991 | US5022911 Gas fired radiant heater for furnace floor |
| 06/05/1991 | EP0430733A1 Device for turning metallurgical products of square or rectangular section through an angle of 180 degrees |
| 06/05/1991 | CN1051873A Storage enclosure for metallurgical products |
| 06/04/1991 | US5020208 Process for heating a semifinished product produced by continuous casting or deformation |
| 05/29/1991 | EP0429355A1 Device assuring a charge remains horizontal while being transferred from a higher to a lower level |
| 05/29/1991 | EP0429328A1 Stock room for metallurgical products |
| 05/29/1991 | DE4007852C1 Withdrawal device in heat-treatment plant - has grip of parallel bars with rollers positioned between them |