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Class Information
Number: 266/263
Name: Metallurgical apparatus > Means treating solid metal > Fluid tight heat transferring box shield or hood (e.g., annealing box) > Bell-type hood, or support for such hood
Description: Device including structure adapted to be lowered about the work comprising a hood closed on its top and sides and open at its bottom, or the support upon which such hood is lowered.

Sub-classes under this class:

Class Number Class Name Patents
266/264 Having packing at hood lip 10

Patents under this class:

Patent Number Title Of Patent Date Issued
8257644 Iron core annealing furnace Sep. 4, 2012
8128863 Iron core annealing furnace Mar. 6, 2012
7252798 Hood-type annealing furnace, especially for steel strip and wire bunches Aug. 7, 2007
7204894 Annealing of hot rolled steel coils with clam shell furnace Apr. 17, 2007
6655956 Metal frame for metal coils to be heat-treated Dec. 2, 2003
6177044 Bell-shaped furnace Jan. 23, 2001
5961322 Water cooled inner cover for annealing furnace Oct. 5, 1999
5871688 Multi-stack annealer Feb. 16, 1999
5756043 Cast refractory base segments and modular fiber seal system for plural-stack annealing furnace May. 26, 1998
5681525 Cast refractory base segments and modular fiber seal system for single-stack annealing furnace Oct. 28, 1997
5616297 Annealing base for hood-type annealing furnaces Apr. 1, 1997
5578264 Cast refractory base segments and modular fiber seal system for plural-stack annealing furnace Nov. 26, 1996
5575970 Cast refractory base segments and modular fiber seal system for plural-stack annealing furnace Nov. 19, 1996
5483548 Insulated furnace door and wall panel system Jan. 9, 1996
5308046 Insulated furnace door system May. 3, 1994
5290017 Cooling cover for batch coil annealing furnace Mar. 1, 1994
5048802 Diffuser system for annealing furnace with chain reinforced, nodular iron convector plates Sep. 17, 1991
4933078 Sorption vessel with internal interstage screening vessel Jun. 12, 1990
4861000 Installation having several elements for heat treatments Aug. 29, 1989
4755236 Method of annealing using diffuser system for annealing furnace with water cooled base Jul. 5, 1988
4611791 Diffuser system for annealing furnace with water cooled base Sep. 16, 1986
4544142 Rotary hearth finish annealing furnace Oct. 1, 1985
4516758 Diffuser system for annealing furnace May. 14, 1985
4504957 High temperature box annealing furnace Mar. 12, 1985
4502671 Batch annealing apparatus Mar. 5, 1985
4310302 Batch coil annealing furnace baseplate Jan. 12, 1982
4278242 Bell-type coil annealing furnace inner cover Jul. 14, 1981
4147506 Method and apparatus for heating coils of strip Apr. 3, 1979

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