Surface current heating apparatus having spaced-apart hollow heat generating members with conductor extending therethrough
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United States of America Patent
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-
Oct 30, 2001
Grant Date -
N/A
app pub date -
Aug 31, 1998
filing date -
Sep 4, 1997
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A surface current heating apparatus including a plurality of hollow heat generating members each of which is made of a ferromagnetic material and has a through-hole and which are spaced apart from each other so as to provide an array of the hollow heat generating members, and an electrically conductive wire electrically insulated and extending through the through-hole of each hollow heat generating member, and wherein an alternating current from a power source is applied to the electrically conductive wire, to cause a surface current to flow through a skin layer of each hollow heat generating member which is located near an inner surface of the through-hole, whereby heat is generated from the said skin layer of the heat generating member.
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