Electric heating – Heating devices – With heating unit structure
Patent
1994-02-14
1995-09-26
Walberg, Teresa J.
Electric heating
Heating devices
With heating unit structure
219538, 219546, 219552, 219553, H05B 348, H05B 344
Patent
active
054535999
ABSTRACT:
A tubular heating element (10) having a metal tube (12) filled with a ceramic material (14). The metal tube has a near zero or slightly positive temperature coefficient of resistance. In an alternative embodiment, a wire (16) is coaxially supported within the metal tube (12) by the ceramic material (14). This wire may be used to stiffen the tubular heating element (10) or may be used as an electrical conductor.
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Hoskins Manufacturing Company
Paik Sam
Walberg Teresa J.
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