Infrared heater
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United States of America Patent
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-
Jul 2, 1991
Grant Date -
N/A
app pub date -
Mar 15, 1989
filing date -
Mar 15, 1988
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
An infrared electric panel heater includes an open side covered by a sintered or electroformed porous metallic panel. An electric sheathed heating element is installed in the housing in contact with the inner surface of the porous panel. The outer surface of the porous panel is substantially entirely covered with a ceramic layer, selected from the group consisting of Al.sub.2 O.sub.3, TiO.sub.2, Cr.sub.2 O.sub.3, Mg O, ZrO.sub.2, SiO.sub.2 and mixture thereof, which emits far-infrared rays when heated.
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