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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:
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 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 |
| 4072299 |
Method and apparatus for basic oxygen steel making employing the off-gas principle of pre-heating purposes |
Feb. 7, 1978 |
| 4072298 |
Method of cooling a quenching bath of melted salt |
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 |
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