Electrical shielding tape with interrupted adhesive layer and shielded cable constructed therewith

Abstract

Abstract An electrical shielding tape comprises a polyester backing layer, and a metallic layer having an adhesive on the exposed surface thereof, the adhesive being disposed in an interrupted layer which defines both exposed open patches, or contact pads, and coated bonding areas thereon. The tape is constructed for use in a shielded cable of the type having at least one conductor wire and an uninsulated drain wire, wherein the tape is wrapped around the conductor and drain wires with the metallic surface of the tape facing inwardly and with the tape adhesively secured to the conductor and drain wires by means of the adhesive on the metallic surface thereof. Effective electrical contact between the tape and the drain wire is achieved in the open patches, or contact pads, which contact the drain wire, and therefore the tape can be grounded to achieve the desired shielding effects simply by connecting the drain wire to a ground terminal. Preferably the exposed contact areas or patches are substantially unconnected on the inwardly facing metallic surface so that the adhesive effectively seals the cable against moisture penetration.

Inventors

• 👤 Joel D. Gruhn

Bibliographic Details