US 5,473,113 A · Shielded wire and cable

Abstract

The present invention features a shielded wire and cable article capable of meeting stringent aerospace specifications and requirements, particularly those pertaining to low weight and high temperature. The article generally consists of an inner conductive core of one or more wires that can be twisted or braided and which can be individually insulated. The conductive core is surrounded by one or more thin layer(s) of insulation about which the shielding of this invention is overlaid. The shielding is made of a woven, braided or served mesh or woven yarn of metal-coated high-performance fibers. The fibers of the mesh or yarn are characterized by high-tensile strength and flexibility and are operative at high temperatures, equal to or exceeding 150.degree. C. When the fibers themselves are braided, the resulting mesh can be braided even more tightly about the interior insulation surface than can conventional meshes.

Claims18

Dependent claims

A cable article having shielding capability, comprising:

a conductive core member;
at least one layer of insulation disposed over said conductive core member;
a layer of shield material consisting of metal-coated fibers having an operative temperature range exceeding approximately 150.degree. C., said metal-coated fibers being braided or served into a mesh to provide a protective shield layer disposed over the insulated conductive core member, said served mesh providing shielding effectiveness in a range of at least approximately between 1 milliohm/meter to 1 ohm/meter of surface transfer impedance across a frequency range of at least between 100 KHz and 1 GHz, said metal-coated fibers being selected from a group of materials consisting of poly(p-phenylene-2,6-benzobisthiazole), polybenzoxazole, polybenzimidazole, polyester-polyarylate and polyester-polyarylate commingled with glass fibers;
and
a jacket disposed over said protective shield layer comprising at least one layer of material.

2 more elements

Dependencies are inferred from the claim text.

Shielded wire and cable

Life of this patent

Shielded wire and cable

Life of this patent

Abstract

Claims18