| Patents for F27D 9 - Cooling of furnaces or of charges therein (2,638) |
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| 07/24/1979 | US4162061 Cooling element for a metallurgical furnace |
| 07/17/1979 | US4161620 Electric arc furnace for steel making, with no refractory bricks at the furnace wall |
| 06/12/1979 | US4157621 Converter linings, circulating dry air under positive pressure |
| 04/24/1979 | US4150818 Cooling element for a metallurgical furnace |
| 02/27/1979 | US4141154 Method for the cooling of a shaft furnace for the calcining of lime, dolomite or magnesite |
| 01/30/1979 | US4137422 Airtight metal melting furnace |
| 01/23/1979 | US4135704 Method and apparatus for heat treatment of material to be worked on, especially of aluminum alloys or magnesium alloys |
| 10/24/1978 | US4122295 Furnace wall structure capable of tolerating high heat load for use in electric arc furnace |
| 10/24/1978 | US4121809 Cooling plate for shaft furnaces |
| 10/10/1978 | CA1040109A1 Filter screen with acoustic pressure wave transducer |
| 09/12/1978 | CA1038162A1 Cooling box for metallurgical furnace |
| 08/15/1978 | US4107449 Water-cooled roof of electric-arc furnace |
| 08/15/1978 | US4106893 For magnetic-ceramic articles |
| 08/01/1978 | US4103878 Apparatus for removing solids from the water seal trough of an annular material cooler |
| 07/25/1978 | US4102530 Rotating furnaces |
| 06/27/1978 | US4097679 Side wall of the ultra high power electric arc furnaces for steelmaking |
| 05/23/1978 | US4091228 Water cooled shell for electric arc furnaces |
| 03/14/1978 | US4079184 Furnace wall element |
| 03/07/1978 | US4077614 Steelmaking apparatus |
| 01/10/1978 | US4067463 Apparatus for charging metal plates edgewise into a metal melt |
| 12/27/1977 | US4065634 Skull furnace for melting highly reactive metals under vacuum or neutral atmosphere |
| 11/15/1977 | US4058668 Cold crucible |
| 09/20/1977 | US4049502 Method of and apparatus for distilling of liquids |
| 09/13/1977 | US4047886 Furnace for the continuous sintering of pellets of ceramic nuclear fuel material |
| 07/12/1977 | US4035142 Continuous heating furnace for elongated metal ingots |
| 07/05/1977 | US4033561 Cooling plates for blast furnaces |
| 06/14/1977 | US4029053 Cooling box for metallurgical furnace |
| 05/24/1977 | US4024903 Evaporative cooling method by natural circulation of cooling water |
| 03/29/1977 | US4014443 Delivery device for heating furnaces |
| 11/30/1976 | US3994669 Furnace |
| 11/09/1976 | US3990686 Furnace for producing steel from scrap steel and the like |
| 10/05/1976 | US3984089 Cooled refractory lined shaft furnace and stave-cooler to be used therefore |
| 07/20/1976 | US3970291 Method of preventing occurrence of pulsation in a circulating liquid for evaporative cooling |
| 06/15/1976 | US3963223 Metallurgical vessel, in particular a converter |
| 05/11/1976 | US3956572 Cooling means for electric arc furnaces |
| 04/27/1976 | US3953247 Method for heat treatment of material to be worked on, especially of aluminium or magnesium alloys |
| 04/27/1976 | US3953008 Blast furnace evaporative cooler |
| 02/24/1976 | US3940552 Water-cooled panel for arc furnace |