| 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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| 06/10/1981 | EP0029879A2 Process and apparatus for the thermal recovery of metallic carbides or metals |
| 06/02/1981 | US4270959 Method for the heat treatment of metal strip |
| 06/02/1981 | US4270899 Roller grate material bed transporting and heat exchange apparatus |
| 05/26/1981 | US4269593 Roller grate material bed conveying and heat exchange apparatus providing plural bed depths |
| 05/19/1981 | CA1101203A1 Oven heating system |
| 05/14/1981 | WO1981001319A1 Truncated triangular insulator |
| 05/13/1981 | EP0028523A1 Insulated skidrail |
| 05/12/1981 | US4266932 Heating furnace |
| 05/12/1981 | US4266316 Suction tube assembly for ring furnace |
| 05/05/1981 | US4265616 For packaging |
| 04/28/1981 | US4264301 Method and apparatus for firing ceramic products |
| 04/28/1981 | US4263798 Method of operating a wide band hot rolling mill |
| 04/21/1981 | US4263163 Process for calcining a material |
| 04/07/1981 | US4260371 Modular heat exchange apparatus |
| 03/24/1981 | US4257767 Furnace temperature control |
| 03/17/1981 | US4256498 Of large size in tunnel kiln, surrounding with muffling or upright lattice work, uniform temperature gradients |
| 03/17/1981 | US4256454 Lifting plate furnace |
| 03/17/1981 | US4256453 Calciner screw construction |
| 03/10/1981 | US4255136 Furnace for heat treatment of wire materials |
| 03/10/1981 | US4255129 Apparatus and method for processing organic materials into more useful states |
| 03/03/1981 | CA1096612A1 Method of setting and controlling desired redox potentials in gases |
| 03/03/1981 | CA1096611A1 Continuous furnace |
| 02/18/1981 | EP0024037A1 A base for a kiln car |
| 02/17/1981 | US4250817 Burner furnace for solid fuels and a method of burning different kinds of solid fuel in this furnace |
| 02/17/1981 | US4250816 Particulate solid fuel combustion system |
| 02/10/1981 | US4249895 Kiln |
| 02/05/1981 | WO1981000296A1 Apparatus and method for processing organic materials |
| 02/04/1981 | EP0023316A1 Mold equipment |
| 01/27/1981 | US4247734 Flexible thermocouple for vacuum electric furnaces |
| 01/27/1981 | US4247000 Ceramic conveyor rolls with metal end caps clamped thereto |
| 01/20/1981 | US4245818 Apparatus for heat treatment of material to be worked on, especially of aluminum or magnesium alloys |
| 01/07/1981 | EP0021768A1 Method for heat treatment of clay and refractory ware |
| 01/07/1981 | EP0021760A1 Reheat furnace skid and method of installation |
| 01/07/1981 | EP0020803A1 Conveyer in a tunnel kiln for burning ceramic ware |
| 01/06/1981 | US4243378 Process and device for displacing firing plates through a tunnel kiln |
| 12/23/1980 | CA1091923A1 Rabbles and material handling systems utilizing same |
| 11/25/1980 | US4235830 Flue pressure control for tunnel kilns |
| 11/25/1980 | US4235591 Continuous flow oven |
| 11/25/1980 | CA1090123A1 Split flow material handling system |
| 11/12/1980 | EP0018379A1 Process for putting into operation a furnace with movable supports |
| 11/11/1980 | US4232734 Trickler heat-exchange apparatus |
| 11/04/1980 | CA1088747A1 Preheating furnace |
| 10/29/1980 | EP0017830A1 Slab heating furnace |
| 10/28/1980 | US4229878 Method of operating a reheating furnace in a hot rolling line and a reheating furnace employed therefor |
| 10/21/1980 | US4229163 Heating furnace |
| 10/15/1980 | EP0016794A1 Method and apparatus for the metallization of fibers |
| 10/14/1980 | US4227875 Rotary hearth for calcining kiln |
| 10/14/1980 | US4227873 Kiln with overlying beds |
| 10/01/1980 | EP0015903A1 Burning method in a coal tunnel kiln and coal burner for tunnel kiln. |
| 09/30/1980 | US4225560 Nuclear fuel reprocessing apparatus |
| 09/30/1980 | US4225197 Insulation structure for kiln rollers and element for use therewith |
| 09/30/1980 | CA1086497A1 Vertical direct fired strip heating furnaces |
| 09/16/1980 | US4223385 Control of workpiece heating |
| 09/16/1980 | US4222987 Muffle calciner having counter-rotating screw conveyors |
| 09/16/1980 | CA1085611A1 Method for enhancing the heating efficiency of continuous slab reheating furnaces |
| 09/09/1980 | US4221560 Apparatus for regeneration of wet spent active carbon |
| 09/09/1980 | US4221517 Brick dehacker and stacker |
| 09/03/1980 | EP0014781A1 Apparatus for the production of foamed glass or foamed ceramics |
| 08/26/1980 | CA1084263A1 Apparatus for heat treatment of material |
| 08/19/1980 | US4218213 Thermally conductive partition |
| 08/12/1980 | US4217097 Venturi-type workpiece-support nozzle |
| 08/12/1980 | US4217095 Reheating furnace for use in a hot rolling line |
| 08/12/1980 | US4217091 Oven process with solvent free exhaust |
| 08/12/1980 | US4217090 Oven heating system |
| 08/05/1980 | US4215981 Heating or combustion apparatus and method |
| 07/29/1980 | US4214869 Furnace with radiant burndown tube |
| 07/29/1980 | US4214868 Method of and an apparatus for soaking steel pieces |
| 07/15/1980 | US4212635 Process and apparatus for producing cellulated vitreous refractory material in prescribed shapes and products therefrom |
| 07/15/1980 | US4212633 Vacuum electric furnace |
| 07/15/1980 | CA1081455A1 Method and apparatus for preheating scrap |
| 07/08/1980 | CA1081265A1 Process for producing cement clinkers |
| 06/25/1980 | EP0012442A1 Transport installation for furnaces for drying and/or firing |
| 06/24/1980 | CA1079962A1 Method of sintering and apparatus for carrying out the method |
| 06/17/1980 | US4208573 Kiln utilizing infrared radiation in the range of 0.7 to 1.5 μm to heat dental ceramic material |
| 06/17/1980 | US4208367 Process and apparatus for making rod-shaped bodies from sinterable granular material |
| 06/17/1980 | US4208179 Internally cooled workpiece-support grate |
| 06/10/1980 | US4207064 Heating apparatus |
| 06/10/1980 | US4207061 Top-shaped lime kiln |
| 06/10/1980 | US4206553 Method of curing strip coating |
| 06/03/1980 | US4205935 Continuous heating furnace for the heat treatment of small parts |
| 05/13/1980 | US4202690 Setting and controlling desired redox potentials in gases |
| 05/13/1980 | US4202661 Jet implement radiation furnace, method and apparatus |
| 05/06/1980 | US4201542 Oven for firing ceramic material or the like |
| 04/30/1980 | EP0010334A2 Apparatus for the induction heating of bars |
| 04/30/1980 | EP0010233A1 Calciner screw construction |
| 04/30/1980 | EP0010218A1 Apparatus for increasing the graphite content of carbon blacks and the use of these carbon blacks |
| 04/29/1980 | US4200431 Roller, particularly for a roller hearth furnace |
| 04/22/1980 | US4198764 Radiant heating apparatus for curing coated strip material |
| 03/18/1980 | US4193761 Kiln |
| 03/11/1980 | US4192645 Tunnel oven for baking ceramic products |
| 03/11/1980 | US4192644 Cooled grate for supporting a workpiece in an oven |
| 03/11/1980 | US4192516 Seals for ovens |
| 03/04/1980 | CA1072823A1 Jet impingement radiation furnace, method and apparatus |
| 02/26/1980 | US4190416 Process and apparatus for producing cellulated vitreous refractory material in prescribed shapes and products therefrom |
| 02/07/1980 | WO1980000157A1 Method and apparatus for the metallization of fibers |
| 02/06/1980 | EP0007464A1 Walking-beam type furnace with supporting plates |
| 01/23/1980 | EP0007296A1 Skid pipe more particularly adapted to be used in a pusher type furnace and production of high pressure saturated vapour therewith |
| 01/22/1980 | US4184839 Roller track for pipes |
| 01/08/1980 | US4182611 Roller-hearth furnace with shielded rollers |
| 01/08/1980 | US4182609 Protective refractory member |