Furnace enclosure having a clear viewpath
AssigneeGeneral Electric Company
InventorsNeil A. Johnson, Russell S. Miller, Gordon B. Hunter
Life of this patent
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Abstract
A clear optical path is provided in a furnace in which high intensity top surface heating is carried out. The path extends through a viewport to the interior of the furnace chamber. The path extends to a clear metal mirror surface and from the mirror surfaced to other portions of the furnace chamber which are not viewable directly through the viewport.
Claims12
A method for providing a clear optical path to the interior of a furnace in which high intensity surface heating of metal is in progress which comprises,
- providing a furnace enclosure,
- providing a viewport through a wall of said enclosure,
- providing an articulatable metal mirror surface in said enclosure optically aligned with said viewport of a charge the same as that of said particles,
- determining the charge on particles from high intensity surface heating of metal in said furnace,
- providing a high voltage electric source, and applying said high voltage to said metal mirror whereby particulate matter in said furnace is repelled from said metal mirror surface.
Apparatus for providing an improved optical path through a furnace for high intensity metal heating which comprises,
- a furnace enclosure adapted for high intensity metal heating,
- a viewport in a wall of said enclosure,
- a metal mirror optically aligned with said viewport, and means for impressing a high voltage on said metal mirror.
Dependencies are inferred from the claim text.