High-temperature, light-weight filter line cable
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United States of America Patent
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May 17, 1994
Issued Date -
N/A
app pub date -
Jun 19, 1992
filing date -
Aug 21, 1991
priority date (Note) -
Expired
status (Latency Note)
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Abstract
The present invention features a new 'filter line' cable having a temperature-enhancement jacket layer composed of, in various forms, a Teflon layer or fused Teflon/Kapton layers. The filter line cable has a conductive core having a primary insulation layer. Over the primary insulation is a filtering layer made up, at least in part, of ferromagnetic particles (ferrite or magnetite) within a polymeric matrix such as Viton, a fluorinated elastomeric polymer. These ferromagnetic particles may or may not be metal-coated. In addition, they may also be 'spherical', to enhance the filtering effect. The filtering layer provides the 'filter line' protection against internal RFI and microwave interferences traveling down the wire. The temperature-insulating jacket layering is disposed over the filter layer and is made up of layers of Teflon, Teflon/Kapton, and Teflon/Kapton/Teflon fused together to form an ultra-thin jacket of between 1 to 3 mils, providing high temperature capability in an operative temperature range of approximately between 150.degree. and 260.degree. C.
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