High-temperature, light-weight filter line cable

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.

Dependencies are inferred from the claim text.