H01B7/0241

Thermally curable adhesive tape and method for jacketing elongated items, especially leads

An adhesive tape for jacketing elongated items may comprise a tape-like carrier provided on at least one side with a self-adhering adhesive layer which consists of a pressure-sensitive adhesive. The tape-like carrier may additionally be provided on at least one side with a binder that is thermally curable at a temperature of up to 110 C.

Shrink-wrap film and method for jacketing elongated items, especially leads
20200255694 · 2020-08-13 ·

The present invention relates to an adhesive tape and to a method for jacketing an elongated item, more particularly cable sets. The adhesive tape must cure within the operational dictates for further processing, e.g. within 6 min, and after curing must exhibit the required dimensional stability properties. However, the adhesive compositions must not cure during storage itself, since otherwise they can no longer be used. Nor may the curing temperatures be too high, since otherwise the lead insulation, which is often made of PVC, may suffer damage. The invention provides a method for jacketing an elongated item such as more particularly leads or cable sets, where a stretched shrink-wrap film is guided in a helical line around the elongated item or the elongated item is wrapped in an axial direction by the stretched shrink-wrap film, the elongated item together with the shrink-wrap film wrapping is brought into the desired disposition, more particularly into the cable set plan, the elongated item is held in this disposition and the shrink-wrap film is brought to shrink by the supply of thermal energy at a temperature of up to 130 C.

Photoelectric composite cable

A hybrid cable applicable in oil wells is disclosed, comprising a FIMT, a conductor layer formed by continuous laser welding and cylindrically covered the outer surface of the FIMT, the outer cylindrical surface of the conductor layer being covered with a high temperature resistant insulating layer by a continuous extrusion method or by wrapped helically with insulating tapes around the outer surface of the conductor layer and the external steel tube cylindrically covered the outer surface of the insulating layer. The conductor layer is coaxial with the FIMT, the inner space of the hybrid cable to accommodating excess length of the optical fiber for thermal expansions or the tensile stress of the optical cable. The thickness of the insulating layer cylindrically covered the outer surface of the conductor layer can be increased, thereby improving the insulating property. A method of manufacturing such hybrid cable is disclosed.

Cable with operation unit

A cable with an operation unit having an operation unit provided on a middle of a cable which includes a plurality of core electric wires. The plurality of core electric wires are bundled to form a bundle of electric wires, the bundle of electric wires is divided into two groups, each of which is covered with a coating resin, and the cable includes a separated part at each of front and rear parts of the operation unit by a predetermined length, in which bundles of electric wires of the two groups are separately configured, and an integrated part in which the bundles of electric wires of the two groups are integrated at a part except the separated part. A boundary part between the separated part and the integrated part is covered with a reinforcing member.

Hybrid cable assembly with internal nylon jacket
10672534 · 2020-06-02 · ·

A wire cable comprising a ground conductor and an insulated conductor wherein the insulated conductor comprises a metal conductor, an insulated material surrounding the metal conductor, and a nylon jacket surrounding the insulated material. A binder surrounds the ground conductor and the insulated conductor and a jacket surrounds the binder.

Plasma treatment for multilayer adhesive bonding element

Method for bonding by wrapping a medium which is capable of expanding transversely to a winding with an adhesive tape, in which: an adhesive tape is unrolled from an adhesive tape roll, the unrolled adhesive tape is provided on one side of a carrier film (1) with an adhesive cement layer (2) and on an opposite side with a separating agent layer (3), the separating agent layer (3) is subjected to a plasma treatment, the plasma-treated adhesive tape is wound around the medium which is capable of expanding transversely to a winding, so that at least a portion of the adhesive tape is bonded to a lower winding ply by the adhesive cement layer (2).

COAXIAL CABLE SYSTEM FOR GAS TURBINE ENGINE

A coaxial cable system includes an electric conductor to conduct electric power in a gas turbine engine. The system also includes a dielectric tape helically wound to contiguously surround the electric conductor and a flexible conduit disposed to surround and contiguously contact the dielectric tape. A dielectric liquid may be impregnated within the dielectric tape, and a flexible protective cover may concentrically disposed to surround the flexible conduit.

MOUNTING AND CATHODIC PROTECTION
20200102658 · 2020-04-02 ·

Methods and apparatus are disclosed. The apparatus includes a substantially cylindrical mount body (350) comprising a first open mouth at a first end of the cylindrical body (350) and a further open mouth at a remaining end of the cylindrical body, a substantially cylindrical inner surface, and an outer surface that includes a plurality of spaced apart substantially parallel recessed regions that extends circumferentially around the body, wherein the cylindrical body (350) is tapered at each end and at least one securing element is located between the recessed regions.

TWIN AXIAL CABLE
20200098490 · 2020-03-26 ·

A twin axial or differential pair cable includes a pair of wires each with an core conductor enclosed in a primary insulator, an insulative inner tape as a secondary insulation spirally wrapping both the pair of wires, a shielding tape longitudinally wrapping the inner tape with an insulative inner layer and a conductive outer layer thereof, a drain wire positioned outside of the shielding tape and at the centerline between the pair of wires, and an insulative outer tape spirally wrapping both the shielding tape and the drain wire. One feature of the invention is to have a seam of the longitudinally wrapping shielding tape located opposite to the drain wire along the centerline in a vertical direction which is perpendicular to the transverse direction defined by two centers of the wires.

CONNECTING AND CATHODIC PROTECTION
20200049280 · 2020-02-13 ·

flexible pipe body and a method of providing electrical continuity are disclosed. The flexible pipe body comprises a first armour layer formed from a helical winding of a metal tape element, a further armour layer formed from a helical winding of a further metal tape element, and at least one intermediate layer between the first and further armour layers, said intermediate layer comprising a helically wound electrically insulating tape element (800.sub.0, 800.sub.1, 800.sub.2, 800.sub.3, 800.sub.4) and a helically wound electrically conductive tape element (810.sub.0, 810.sub.1, 810.sub.2, 810.sub.3, 810.sub.4).