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US 6,724,803 B2Granted
Induction furnace for high temperature operation
AssigneeUCAR Carbon Company Inc.
InventorsDouglas J. Miller, Werner H. Ruoff, Allan Webster Intermill, Thomas R. Thoman, Richard L. Shao, Stephen L. Strong
Life of this patent
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Abstract
An induction furnace capable of operation at temperatures of over 3100° C. has a cooling assembly (60), which is selectively mounted to an upper end of the furnace wall (76). The cooling assembly includes a dome and a lifting mechanism (80), mounted to the dome, which raises a cap (16) of the furnace slightly, allowing hot gases from the hot zone to mix with cooler gas in the dome.
Claims12
A furnace comprising:
- a vessel which defines an interior chamber for receiving items to be treated, the vessel including a susceptor;
- an induction coil for indudcing a current in the susceptor to heat the susceptor;
- a cap which selectively closes the interior chamber of the vessel;
- and
- a cooling assembly including:
- a dome which defines a chamber, and
- a lifting mechanism which selectively lifts the cap allowing hot gas to flow from the interior chamber of the vessel into the dome.
4 more elements
Dependencies are inferred from the claim text.