发明名称 |
ELECTRIC RESISTANCE HEATING CABLE |
摘要 |
An electric resistance heating cable having alternating sectors of different temperature during use obtained by winding a heating wire having sectors of comparatively high- and comparatively low-electric resistances on a core of an electrically insulating material and by enveloping the assembly with an electrically insulating covering.
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申请公布号 |
US3646322(A) |
申请公布日期 |
1972.02.29 |
申请号 |
USD3646322 |
申请日期 |
1971.01.05 |
申请人 |
U.S. PHILIPS CORP. |
发明人 |
BERNARDUS WILLEBRORDUS SPEEKMAN |
分类号 |
H05B3/56;(IPC1-7):H05B3/34 |
主分类号 |
H05B3/56 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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