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US 7,335,837 B2Granted
Multi-layer, strip-type screening sheet for electric lines and electric cable, in particular a data transmission cable, equipped therewith
AssigneeDraka Comteq Germany GmbH & Co. KG
InventorsChristian Pfeiler, Andreas Wassmuth, Jörg Weissbrod, Brian George Race
Life of this patent
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Abstract
A multi-layer, strip-type screening sheet for electric lines comprises at least a substrate layer of plastic material and at least one screening layer of electrically conductive material, in particular metal, which the substrate layer is lined with, the screening layer being provided with spacing gaps that recur at longitudinal intervals for electrical interruption thereof in the longitudinal strip direction.
Claims26
A multi-layer, strip-type screening sheet for electric lines, comprising
- at least one substrate layer (2, 8) of a plastic material;
- and
- at least one screening layer (3) of an electrically conductive material which the substrate layer (2, 8) is lined with;
- the screening layer (3) having a layer thickness between 5 and 50 μm and being provided with spacing gaps (5) that interrupt electrical conduction therein in a longitudinal strip direction (Z), with the spacing gaps (5) extending crosswise of the longitudinal strip direction (Z) and recurring at longitudinal intervals (p),
- wherein the screening layer (3) is made of a metal foil which is separated into foil pieces (4) by said spacing gaps (5) and wherein a ratio that a spacing-gap width (D) bears to a length (L) of said foil pieces (4) remaining between said spacing gaps (5) ranges between 1:5 and 1:25.
2 more elements
A multi-layer, strip-type screening sheet for electric lines, comprising
- at least two substrate layers (2, 8) of a plastic material;
- and
- at least one screening layer (3) of an electrically conductive material which is placed between, and lined with, two of said substrate layers (2, 8);
- the screening layer (3) having a layer thickness between 5 and 50 μm and being provided with spacing gaps (5) that interrupt electrical conduction therein in a longitudinal strip direction (Z), with the spacing gaps (5) extending crosswise of the longitudinal strip direction (Z) and recurring at longitudinal intervals (p).
1 more element
Dependencies are inferred from the claim text.