Abstract: A device for forming an electrical connection between part of an elongate electrical conductor between its ends and one or more other electrical conductors comprises and electrically insulating sleeve, a metallic connecting element located within the sleeve, and a quantity of solder for forming a permanent electrical connection between the conductors. The electrically insulating sleeve and the connecting element have two open ends to allow the elongate electrical conductor to extend through them, and the connecting element has a tapering internal surface which has a screw thread to enable the other electrical conductor or conductors to be held in contact with the elongate electrical conductor by twisting the connecting element about the conductors.

Abstract: An insulating part for an electronic device includes a body having a metallized outer surface and a heat sink arranged within the body. The heat sink is thermally coupled to an electronic component and to the metallized outer surface, and may also be either electrically coupled or electrically isolated from the electronic component. The insulating part is preferably made of plastic by an injection-molding process, while the heat sink is preferably a metal block integrally formed within the insulating part.

Abstract: This invention discloses a method and apparatus for waterblocking wire-to-wire connections in a cable using an arrangement of seals. Lead-in transmission lines are slid through a multiple-aperture seal to produce a compression seal between the transmission lines and the seal and the trailing transmission line is slid through a single-aperture seal to produce another compression seal. A piece of constrictive tubing is slid over the first seal before splicing the wires in the lead-in and trailing transmission lines together. The tubing then is positioned over both seals to produce a compression seal between the tubing and the seals to form a waterblock in the area defined by the two seals containing the splice.

Abstract: An electric conductor (10, 20, 30) provided with an insulating layer (11, 21, 31) and a protective layer (12, 22, 32), surrounding the conductor, in the form of a polymer material containing at least :stabilized polyethylene. To said polyethylene there is added a combined antioxidant and voltage stabilizer, in the form of 5,10-dihydroindeno[1,2-b]indole or substituted florins thereof such as methyl, methoxy, dimethylamino or other donor substituents to counteract degradation as a result of electric load.

Abstract: Naval power cable comprises a plurality of insulated electrical conductors, at least a pair of strip cords, a water blocking layer, and a jacket layer. Each electrical conductor has a longitudinal extent and is helically intertwined with the other electrical conductors, to form a core conductor assembly having a longitudinal extent and at least a pair of outer interstices adjacent to the insulated electrical conductors. Each strip cord is disposed along the longitudinal extent of the core conductor assembly and extends into and out of the outer interstices in a spatially periodic manner so as to permit the resulting power cable to undergo severe bends during cable istallation. The water blocking layer is disposed about the core conductor assembly and the strip cords, and prevents passage of water along interstices about the electrical conductors. The jacket layer is disposed over and adjacent to the water blocking layer.

Abstract: A shielded coaxial electrical cable for transmission of electrical signals in which very fine wires or light-weight foils are used as shielding materials. The shielding materials are held in place by an adhesive to prevent dislodgement or misalignment of the shielding materials by forces exerted upon them during subsequent manufacturing steps.

Abstract: A dual push-cable for mechanically and electrically connecting a video camera head to a video circuit to permit the head to be pushed down the inside a pipe and negotiate turns in the pipe as the push cable is forced down the pipe while permitting the video circuit to power and receive video signals from the video camera head. The push-cable comprises an elongate resilient flexible push member, and elongate electrical and/or fiber optic signal transmitting cable, and a hinge joining the push member and the signal transmitting cable in a substantially parallel spaced apart side-by-side relationship. The push member may be a cylindrical rod formed of fiberglass impregnated with epoxy resin. The electrical signal transmitting cable may be armored tri-axial cable.

Abstract: A device for sealing an article, which comprises:(i) a sealing material;(ii) a resilient member that can be biased to apply compression to the sealing material to cause it to seal the article; and(iii) stop means for limiting said biasing of the resilient member at a configuration thereof in which said biasing can be increased by movement of the sealing material.

Abstract: By applying a tension to the conductor to be cut off, and locally heating the intended cutting position to provide a temperature difference of 20.degree. to 300.degree. from other parts, the cutting position is lowered in tensile force as compared with other parts, and by applying a tension, the concentrated stress is added, and a large distortion is generated to cut off, so that the cutting position may be stabilized.

Abstract: The invention concerns an electrical winding with a conductor layer (14) which is sealed in an insulating layer (30) of polyethylene. The polyethylene has a degree of crosslinking of at least 60% and contains an anti-oxidant. The starting material used is a not yet crosslinked polyethylene to which a foaming agent is added so that, when heated to be crosslinked, during which it also melts, the polyethylene penetrates between the individual turns (20) in the conductor layer (14). The protective insulating layer (24) round the individual turns of the winding consists of a material which is stable at the crosslinking temperature.

Abstract: A shielded flat cable having a shield layer formed of an adhesive resin layer containing metal fillers. The adhesive resin adheres to both an insulation layer and one or more conductors of the flat cable. The shield layer can also include a nonflammable substrate onto which the adhesive resin is disposed.

Abstract: A cover for protecting a large number of electric wires in the housing in a bolt-screwed high-density multi-pole connector having a screw bolt. The cover is plate-shaped. The cover has an engagement hole corresponding to a bolt holder having a rectangular cylinder into which the screw bolt is inserted and a handle provided at one end where the electric wires are fixed and from which they are extracted. Thus, the cover can be easily mounted on the housing. With no fear of catching or breaking of electric wires, the direction of extracting the electric wires can be optionally selected. Further, the cover can be fabricated at low cost.

Abstract: A wire seal formed of an elastic material is fitted to an electrical wire inserted into a housing of a waterproof electrical connector. Specifically, the wire seal is inserted into a cylindrical portion of the connector housing to provide seal. The wire seal includes a seal body having a through-hole through which the electrical wire is inserted, the seal body being fitted in the cylindrical portion of the connector housing, and a cover piece integral with the seal body and extending peripherally of the seal body. The cover piece is in contact with the entire peripheral edge defining an opening of the cylindrical portion of the housing through which the electrical wire is inserted.

Abstract: A power cable for use in high moisture and chemically corrosive environments has a longitudinally-folded sheath for encapsulating one or more electrical conductors. A plurality of overlapping folds at the longitudinal edges of the sheathing material creates a labyrinth-type sealing joint for maintaining moisture and gas integrity of the cable. A sealant is provided within the circumferential and radial spaces defined by the overlapping folds of the joint.

Abstract: The present invention provides a wire for a press-connecting terminal which has a high flexibility, and achieves a high reliability for a connection portion at the time of press-connection, and also provides a method of producing a conductor of such a wire. The wire provides a stranded conductor and an insulator covering the conductor. Wire elements of the stranded conductor are concentrically twisted in layers in the same direction at the same pitch, and the stranded conductor is compressed into a circular cross-section in such a manner that a space factor of the cross-section of the conductor is not less than 99%. The present invention also provides a multi-layer compressed concentric stranded conductor which enables a uniform compression of a base stranded wire.

Abstract: A wireholder includes a main body portion, an attaching portion, and a tool receiving portion. The main body portion is arranged to receive a wire to be secured to a structure. The attaching portion is affixed to the main body portion and has a configuration to facilitate the attachment of the main body portion to the structure. The tool receiving portion is arranged to receive an installing tool. The main body portion has a strength so that torque can be transferred from a power tool to the attaching portion through the installing tool and the main body portion. The installing tool is arranged to break if excessive torque is applied to the wireholder by the installing tool.

Abstract: A member having a shank is selectively coated with a material such as a metal by loosely sliding a washer made of a material such as a thermoplastic or thermosetting polymer onto the shank, securing the washer such that the washer is in intimate contact with the shank, and immersing at least a portion of the member into at least one coating bath so that a portion of the member is coated and the portion of the shank in contact with the washer is not coated. The member can be an input/output pin for an electronic device and the coating can be applied by methods such as electroless plating or electrolytic plating.

Abstract: This invention permits reduction in space between conductors in a shielded flat cable, as well as improvement in shielding ability and cost savings of the shielded flat cable. The shielded flat cable comprises a cable body 8 including a base film 3, circuit conductors 1, and a ground conductor 2. The circuit conductors 1 are disposed in the upper surface of the base film 3 in a parallel relationship with one another. A lower cover layer film 4B is attached to the upper surface of the base film 3. The ground conductor 2 is disposed on the lower cover layer film 4B in a parallel relationship with the circuit conductors 1. An upper cover layer film 4A is placed over the ground conductor 2 and the lower cover layer film 4B. An area 7 having no upper cover layer film 4A is provided in the cable body. The area 7 having a predetermined width extends transversely of the cable body 8. A shield tape 5 is wrapped around the cable body so as to shield the cable body.

Abstract: A system is provided for cooling a flexible high energy coaxial cable wherein cooling fluid is circulated along the cable and through a heat exchanger to dissipate the cable heat generated by the high energy transferred by the cable. The cable has inner and outer concentric conductors separated by an inner dielectric layer and surrounded by an outer dielectric layer. Channels in the two dielectric layers provide for the fluid flow along the cable which carries away the heat.

Abstract: An electric cable mounting device includes a a connector for fastening to one terminal of en electric apparatus by a screw, a taper jacket fitted into a taper hole on the connector and mounted around the conductor of the electric cable to be mounted, a first hollow screw member having an outer thread portion threaded into an inner thread portion on the connector and stopped against the taper jacket, a clamping ring clamped on the electric cable, and a second hollow screw member mounted around the electric cable and having an outer thread portion threaded into an inner thread portion on the first hollow screw member to tighten up the clamping ring.