Electric heaters
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United States of America Patent
Stats
-
Jan 9, 1990
Issued Date -
N/A
app pub date -
Aug 10, 1987
filing date -
Jun 9, 1984
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
An electric heater for a glass ceramic top cooker includes a base layer of thermal insulation material such as ceramic fiber or a microporous thermal insulation, a source of infra-red radiation such as a pair of infra-red lamps, and a reflector which is positioned so as to reflect infra-red radiation emitted by the source towards the layer of thermal insulation material. The reflector may be a specular reflector such as a coating of a reflecting metal deposited internally or externally of the source of infra-red radiation or may be a diffuse reflector such as a layer of fine particulate alumina deposited onto the external surface of the source of infra-red radiation.
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Family
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