发明名称 |
Electrical heating apparatus |
摘要 |
In an electrical heating apparatus having at least one heating body with a chemically substantially resistant sheathing surrounding same, the sheathing comprises at least two-layer co-extruded material. The material comprises an inner layer which in the position of use is towards the heating body and which comprises a material that is a good conductor of heat. Arranged on the outside of the inner layer is an outer layer of chemically substantially resistant and electrically non-conductive material. The inner layer and the outer layer are homogeneously fused together without air inclusions.
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申请公布号 |
US6169276(B1) |
申请公布日期 |
2001.01.02 |
申请号 |
US19990379672 |
申请日期 |
1999.08.24 |
申请人 |
POLYTETRA DRAACK + MEYER GMBH |
发明人 |
MEYER HELMUT |
分类号 |
H05B3/42;(IPC1-7):H05B3/10 |
主分类号 |
H05B3/42 |
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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