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Class Information
Number: 266/262
Name: Metallurgical apparatus > Means treating solid metal > Fluid tight heat transferring box shield or hood (e.g., annealing box)
Description: Device including a removable enclosing receptacle or hood specially adapted for holding metal articles being heated, shielding them from the atmosphere, and equalizing the application of heat to the metal articles, e.g., annealing or carbonizing boxes.

Sub-classes under this class:

Class Number Class Name Patents
266/263 Bell-type hood, or support for such hood 28

Patents under this class:

Patent Number Title Of Patent Date Issued
7507368 Hot air circulation furnace Mar. 24, 2009
7252798 Hood-type annealing furnace, especially for steel strip and wire bunches Aug. 7, 2007
6901990 Method and system for processing castings Jun. 7, 2005
6264360 Mixer for container with quick release coupling Jul. 24, 2001
6214285 Process for thermal treatment of a plastically moldable workpiece and device for such a thermal treatment Apr. 10, 2001
6063331 Annealing furnaces May. 16, 2000
5402994 Device for heat-treating metal workpieces Apr. 4, 1995
5364080 High efficient heat treating and drying apparatus and method Nov. 15, 1994
5297959 High temperature furnace Mar. 29, 1994
5265851 Installation for the heat treatment of successive batches Nov. 30, 1993
5207972 High temperature furnace May. 4, 1993
5190718 Machine for thermo-mechanical treatment of parts made of memory alloys Mar. 2, 1993
5164145 Rotary furnace oil seal employing endothermic gas purge Nov. 17, 1992
4834345 Process and apparatus for direct softening heat treatment of rolled wire rods May. 30, 1989
4813654 Annealing furnace base construction Mar. 21, 1989
4757978 Shape-memory alloy resetting apparatus Jul. 19, 1988
4632369 Coil-annealing spacer Dec. 30, 1986
4621794 Apparatus for producing a grain-oriented electromagnetic steel strip or sheet Nov. 11, 1986
4445852 Diffusers May. 1, 1984
4423857 Spacer for batch coil annealing Jan. 3, 1984
4415145 Metal charge treatment apparatus Nov. 15, 1983
4223877 Annealing furnace Sep. 23, 1980
4147506 Method and apparatus for heating coils of strip Apr. 3, 1979

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