Electric resistance heater
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United States of America Patent
Stats
-
Aug 30, 1983
Grant Date -
N/A
app pub date -
Aug 14, 1981
filing date -
Aug 14, 1981
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A horizontal porcupine coil of electric resistance heating wire is supported against sagging by two superimposed coil-center ceramic tubes containing a conductor for one end of the coil. If one tube cracks it is improbable that the other would crack in the same place, and this keeps to a minimum the possibility of short-circuiting between the conductor and coil.
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Family
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Cited Art Landscape
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