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Class Information
Number: 266/44
Name: Metallurgical apparatus > Process
Description: Methods of operating metallurgical apparatus which are solely directed to those steps of operating such an apparatus which do not effect a chemical or physical change in the work being treated.










Sub-classes under this class:

Class Number Class Name Patents
266/46 Cooling 85
266/45 Plugging or tapping 199
266/47 Tuyere operation 107


Patents under this class:
1 2 3 4 5 6 7 8

Patent Number Title Of Patent Date Issued
4229211 Ladle heating system Oct. 21, 1980
4227921 Method of controlling a blast furnace operation Oct. 14, 1980
4223873 Direct flame ladle heating method and apparatus Sep. 23, 1980
4216944 Casting vessel having basic lining Aug. 12, 1980
4201370 Method and apparatus for heat treating materials to remove contaminants May. 6, 1980
4200262 Method and apparatus for removing combustible material from metal scrap Apr. 29, 1980
4192489 Control system for an installation utilizing pressure energy of outgoing blast-furnace gas Mar. 11, 1980
4192486 Method for controlling exhaust gases in oxygen blown converter Mar. 11, 1980
4191598 Jet recirculation method for vacuum carburizing Mar. 4, 1980
4190235 Fluidized bed ladle heating method and apparatus Feb. 26, 1980
4165979 Flash smelting in confined space Aug. 28, 1979
4165065 Lime removal from furnace surfaces Aug. 21, 1979
4160662 Method for the removal of scum Jul. 10, 1979
4158562 Blast furnace testing and control methods Jun. 19, 1979
4147332 Method for recovering heat from molten slag and an apparatus therefor Apr. 3, 1979
4145033 Hot blast stove and method of operation Mar. 20, 1979
4142712 Method and apparatus for effecting uniform heat transfer in an industrial furnace Mar. 6, 1979
4135702 Method and apparatus for preheating scrap Jan. 23, 1979
4128415 Aluminum scrap reclamation Dec. 5, 1978
4127257 Process for operating a plurality of regenerative hot blast stoves for supplying hot blast to a blast furnace Nov. 28, 1978
4123042 Steel converter vessel tuyere block construction Oct. 31, 1978
4120643 Method of regulating the process of agglomeration of a mineral on an endless chain Oct. 17, 1978
4118015 Device for sampling molten metal Oct. 3, 1978
4114862 Processes and installations for melting pig-iron in a cupola furnace Sep. 19, 1978
4113426 Method for circulating a heat treating gas Sep. 12, 1978
4106755 Fluidized bed ladle heating method and apparatus Aug. 15, 1978
4099709 Method and apparatus for controlling emissions from oxygen steelmaking furnaces Jul. 11, 1978
4097027 Device and process for limiting surface oxidation of glowing hot metal dross Jun. 27, 1978
4094494 Furnace charge profile measuring process and apparatus Jun. 13, 1978
4076221 Use of an acid-resisting cement for the protection against corrosion of steel surfaces exposed to hot gases Feb. 28, 1978
4072298 Method of cooling a quenching bath of melted salt Feb. 7, 1978
4072299 Method and apparatus for basic oxygen steel making employing the off-gas principle of pre-heating purposes Feb. 7, 1978
4071382 Method for case hardening powdered metal parts Jan. 31, 1978
4066477 Method of maintaining temperature of salt bath during quenching of steel wire Jan. 3, 1978
4055331 Method of cleaning stack gas and using same for generation of electric power Oct. 25, 1977
4050679 Method and apparatus for controlling the furnace top gas pressure of blast furnaces Sep. 27, 1977
4040608 Method for the recovery of gases coming from refining furnaces Aug. 9, 1977
4028096 Method of melting metals to reduce contamination from crucibles Jun. 7, 1977
4010935 High efficiency aluminum scrap melter and process therefor Mar. 8, 1977

1 2 3 4 5 6 7 8










 
 
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