Infrared panel emitter and method of producing the same
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United States of America Patent
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-
Apr 21, 1987
Issued Date -
N/A
app pub date -
Jul 1, 1985
filing date -
Jan 20, 1984
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A nonfocused infrared panel emitter and method of making the same. The panel emitter includes a primary emitter positioned between an insulating layer and a secondary emitter. Preferably, the primary emitter comprises a metal foil having a pattern formed by etching. The secondary emitter may be either a woven alumina cloth, or a sheet of glass which is transparent to infrared radiation. In one embodiment of the invention, a layer of somewhat compressible, high temperature resistant paper is placed on either side of the metal foil to accommodate expansion and contraction thereof. In one method of making the panel emitter, a mesh sheet is positioned adjacent the metal foil and the sheet is vaporized by heating to create a void adjacent the foil to allow for thermal expansion and contraction of the foil.
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