发明名称 |
Heating cable |
摘要 |
A heating cable for maintaining pipes and related equipment at temperatures above freezing or at elevated process temperatures. The heating cable includes a pair of elongated electrode wires each coated with a layer of insulating material. The layer of insulating material is partially stripped off the wires at spaced, alternating locations. A resistive heater wire is helically wound around a yarn of fibrous insulating material to form an elongated resistor core. The elongated resistor core is spirally wound around the electrode wires and is brought into electrical contact with the electrode wires at the alternating locations where the wires are partially stripped. A second layer of insulating material covers the elongated resistor core and forms an outer surface for the cable.
|
申请公布号 |
US6144018(A) |
申请公布日期 |
2000.11.07 |
申请号 |
US19970858060 |
申请日期 |
1997.05.16 |
申请人 |
HEIZER, GLENWOOD FRANKLIN |
发明人 |
HEIZER, GLENWOOD FRANKLIN |
分类号 |
H05B3/56;(IPC1-7):H05B3/54 |
主分类号 |
H05B3/56 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|