Abstract: An electrical and mechanical cable connector is constructed for maintaining an electrical grounding circuit in electrical installations on board of an aircraft. For this purpose the connector has two bodies positioned coaxially to each other and rotatable to each other but restrained against relative axial movement by a spring ring. One of the two bodies has a plurality of contact springs formed by cutting axial slots integrally into a portion of the one body. The body with the contact springs rests at least partly in or on the respective support body. Both bodies have a common central axis and contact pressures are effective radially inwardly or radially outwardly relative to the common central axis and are axially distributed along the central axis, whereby both bodies are electrically interconnected to maintain the grounding circuit.

Abstract: Prefabricated electrical trunking made up of butt-jointed unit enclosure sections. A mechanical coupling is provided by use of flanges clamped by bolts passing through tubular spacers inside the enclosure sections. The spacers include openings receiving in a watertight manner swaged portions of orifices formed in the enclosure sections. A unit conductor assembly is housed in the coupling.

Abstract: A cable splicing closure includes a base having ports for the entry of cables to be spliced, and a tubular cover for sliding axially over a peripheral surface of the base. The surface is formed with a groove which tapers towards the end from which the cover is applied and which carries an O-ring seal that is engaged by the cover and which rolls along the tapering surface of the groove as the cover is slid onto the base. The O-ring seal is rolled substantially more than 50 percent, but less than 100 percent, of its peripheral length when it is rolled into its final sealed position. Thus, the O-ring will exert a force in a direction urging the tubular cover more firmly onto the base.

Abstract: An electric cable joint is enclosed within a heat shrinkable sleeve. The joint region is sealed against the ingress of moisture by a material made of a non-crystalline polymer whose glass transition temperature is less than -40.degree. C. Further, the material has a viscosity at 35.degree. C. of less than 10.sup.6 Pa-sec and a viscosity at 95.degree. C. of greater than 10.sup.3 Pa-sec (both viscosities measured at a shear rate of 0.02 sec.sup.-1) and a minimum tack value of about 140 gm/cm.sup.2.

Abstract: A closure is provided for connections between high voltage cables and other electrical equipment, such as another high voltage cable, a transformer, or switch gear. Insulation is provided by an insulating gel which forms interfaces with itself and/or materials of the cable or other electrical equipment. The interfaces have a high interfacial dielectric strength, which prevents failure along the interfaces.

Abstract: A conductor splice and splice support structure and method of assembly for use with cable-in-conduit superconductor cable of the type having a plurality of spaced sub-cables each including stabilizer and superconductor strands in an annular tube. Two transition ramp members, each having a cross section varying from a first end conforming to the cable configuration to a second end having an enlarged, oval, configuration have a plurality of surface grooves each sized to hold one sub-cable. Between the two transition ramp members is provided a main support member having grooves aligned with the transition members grooves. The main support member grooves are sized to hold two overlapping sub-cables. Preferably, a braid of superconductor material is placed around the overlapping sub-cable ends. The space within the grooves surrounding the sub-cables is preferably filled with solder.

Abstract: The invention relates to a mechanical connector splice for joining a pair of aligned cables, such as helically wound aluminum or copper conductors, where such cables are a part of the distribution system of a power network. The splice includes an outer, generally circular metal shell, typically aluminum or copper, consisting of a midportion and a pair of tapered end portions, where each end portion terminates in an opening into which the cable is received. Within the shell are a pair of generally circular tapered inserts within the respective end portions, and the insert is arranged to move axially of the metal shell to securely engage the cable. Further, a spacer member is provided within the midportion to initially position the tapered inserts, where the spacer member includes a pair of pusher members positioned to exert an axial movement on a respective insert.

Abstract: A coupling device for prefabricated electrical trunking. An internal member fits inside enclosure sections of the trunking which are to be butt-jointed. The internal member has water drainage grooves on its outer surface near a mating plane of the butt-joint. An exterior member fits over the joints and its two halves are bolted together.

Abstract: A split solder sleeve is provided with a conductor channel extending between open opposite ends of the sleeve and a longitudinal slot extending through the side wall of the sleeve into the channel and between the ends of the sleeve. The improvement includes a hole extending through the side wall of the sleeve into the conductor channel. The hole allows solder to be poured into the sleeve and around the conductors directly on the ends of the conductors. The hole allows greater visual inspection of the spliced solder joint both during and after pouring of the solder.

Abstract: In the covered-wire connection method and structure in which at least one of members to be conductively connected to each other is a covered wire comprising a conductive wire portion and a cover portion of resin which is coated around the outer periphery of the conductive wire portion, both of the members are overlapped with each other at connection portions thereof, the overlapped connection portions are pinched between a pair of resin chips, and then the cover portion are melted and dispersed by ultrasonic vibration while pressing the connection portions of the members from the outside of the resin chips to conductively connect both of the members to each other at the connection portions thereof. Thereafter, the pair of the resin chips are melted to be fixed to each other, so that the connection portions are sealed with the melted resin chips.

Abstract: A low resistance splice for electrically connecting the ends of two superconducting cables and a method for making the splice. Two cables formed from superconducting material are positioned in close proximity, either overlapping or axially aligned and extending in opposite directions away from the splice. At least one strand of superconducting material is wrapped over both cables in a pressure relationship assuring good electrical contact between cable ends and strands. Solder is melted and applied to hold the strands against the cables. Where the cables overlap, solder may be used at the overlap interface to add mechanical strength. The strands may be in the form of a helical winding around overlapping cable ends or in the from of a braided tube surrounding and pressed against either overlapping or axially aligned cables. In the axial embodiment, the cables with the strand wrap may be pressed into a slot and the slot filled with solder to hold the cables and strands in position.

Abstract: A support for fitting a shrinkable sleeve onto an object inside the support and the sleeve 11 mounted on it includes at least two tubular parts removed in turn from under the sleeve. It further includes means for temporarily immobilizing the last part to be removed from under the sleeve during removal of the other tubular part.

Abstract: In order to establish a low-electrical resistance between two wires, a heat-shrinkable hollow tube is prepared. Three or more small-diameter conductors are attached to the inner surface of the hollow tube, such as by use of an epoxy adhesive. These conductors run parallel to the axis of the tube along its entire length. Each of the two wires is inserted into an opposite end of the tube. The tube is then heated to a sufficient temperature, such that when it cools it collapses and grasps both of the wires firmly, whereby the resulting electrical conductance between them (aided by the conductors) is enhanced.

Abstract: A joint and method of making a joint for providing a secure mechanical and electrical connection between a longitudinally extending coiled or wound element and a terminal on a mating component in a body implantable lead assembly. The wound element has an end portion threadedly received by a post on the terminal. A ring is disposed about the end portion of the wound element. The ring, the end portion of the wound element and the post are joined at at least one location along the circumference of the ring, preferably by thermally fusing these parts using a pulsed laser. The ring has a thin wall and is preferably made of the same biocompatible metallic alloy as the wound element.

Abstract: A flexible pipe coupling is constructed for flexibly interconnecting pipe sections especially in a vacuum toilet system on board an aircraft. For this purpose each coupling member of a pair forming the coupling has a bushing for connection to a pipe end by a hose clamp, a flange integrally connected to the bushing, and a support ring for backing the respective flange but permitting the flange to retain a certain flexibility. Each support ring has a conical circumferential rim. The coupling also includes a clamp member encircling with radially inwardly facing conical surfaces the radially outwardly facing conical rim of both support rings to clamp the coupling members together. The clamp member has a threaded or snap device for applying the clamping force.

Abstract: A tubular supporting element for supporting an elastic sleeve for covering a junction of cables which is provided with a wall which has a groove or incision directed according to a helical line and which has a radial depth from the outer surface of the supporting element less than the radial thickness of the supporting element. The incision has a mouth at the outer surface of the supporting element with a width of less than 0.1 mm, preferably less than 0.05 mm, so as to provide a strip between the incision having a substantially rectangular cross-section. Also, a process and an apparatus for making the tubular supporting element.

Abstract: A cable connector for connecting cable conductors (6A) of a flat cable (6) to wire conductors (41A, 42A, 43A) of a plurality of external wires (41, 42, 43), respectively comprises a T-shaped wire mounting plate (30) formed with a plurality of U-shaped grooves (31, 32, 33) and with a pair of guide bridges (34, 35). The U-shaped grooves hold the external wires on a first surface thereof in such a way that the wire conductors of the external wires are arranged being bent at a right angle and further projected from one end surface of the wire mounting plate, respectively. A pair of the guide bridges (34, 35) hold the fiat cable on a second surface thereof opposite to the first surface thereof in such a way that the cable conductors of the flat cable are arranged being projected from the same end surface of the wire mounting plate side by side with the projecting wire conductors of the external wires.

Abstract: A cap for a twist-on electrical connector includes a body formed of a semi-rigid insulating material and having a central bore, open at one end and closed at the other end by an integral end wall. The bore of the cap is formed to receive a wire clamping structure such as a coiled spring. The body has a first exterior portion of maximum diameter generally adjacent the open end. Substantially the remaining portion of the body is generally conical and has a pair of generally oppositely positioned laterally extending wings. The wings are each generally tangential to the conical body portion and the outwardly facing side of each wing has a concave pressure application surface area.

Abstract: An arrangement for multiple cable introductions into cable sleeves composed of a seal or end member having a plurality of cable introduction nipples characterized by the introduced cables being received in the introduction nipples and being sealed thereto with shrink hose sections. The cable introduction nipples are fixed pressure-tight in admission bores of the seal member or at admission nipples which are provided at the admission bores of the seal members by utilizing nuts engaging threads on one of the nipples and entrapping a sealing insert.

Abstract: To provide a beam welding terminal structure which holds a connection member to be connected, such as a wire, from opposite sides thereof, and firmly welds the connection member by irradiation of a beam such as a laser beam, a beam welding terminal structure includes holding walls at opposite sides, and a connection member to be connected is welded to the holding walls by irradiation of a beam. A projection extends from at least one of the holding walls and beyond the connection member in a direction of the height. A rectangular wave-shaped base wall has longitudinal side portions, extending in a direction intersecting the connection member, and transverse side portions extending parallel to the connection member.

Abstract: There is provided a method for joining the buss wires of a pair of flexible cables by splicing and encapsulating the ends of the cables together. This method involves the splicing of the two cables together by stripping oppositely disposed ends of the two cables such that the buss wires are left exposed. The exposed wires are inserted into respective ends of a connector tube formed of a material having a similar melting point, tensile strength and electrical conductivity properties to the buss wires disposed therein. Both ends of the connector tube are then welded to the oppositely disposed buss wires. Thereafter, the welded wires are encapsulated within an polymer encapsulation layer which overlaps with portions of the flexible sheath that had not been stripped. The polymer encapsulation layer is preferably one which exhibits a similar melting point and tensile strength to the flexible polymer sheath.

Abstract: A waterproof construction of a wire for a motor vehicle, which wire has one or more strands and an insulating coating surrounding the strands and is connected to a nonwatertight terminal including a terminal fixed directly to a body of the motor vehicle and a terminal mounted on a nonwatertight connector, wherein at a portion of the wire between its location connected to the nonwatertight terminal and a first branch point, the insulating coating is removed from the wire so as to expose the strands and waterproof material is filled among the strands such that an insulating and waterproofing coating member is wound around an outer periphery of the waterproof material.

Abstract: The wire splice enclosure of the preferred embodiment provides a two-piece sealable cylindrical enclosure having a tension plate at each end formed parallel to the axis of the enclosure. Each tension plate is formed with a serpentine concave track of a size adapted to snugly receive a wire for splicing, with a hole adjacent the track inner end sized to allow the wire to snugly pass through into a chamber area. A pair of hooks within the chamber area provides support for the wire ends after splicing. The two pieces of the chamber are adapted to seal together with a quarter turn locking motion.

Abstract: A device for forming an electrical connection between a plurality of elongate electrical conductors comprises an electrically insulating sleeve, and contained within the sleeve a resiliently deformable tapering coil and a quantity of fusible polymeric material, the device being arranged so that the elongate electrical conductors may be connected by twisting them into the coil so that at least part of the coil is deformed and heating the device so that at least some of the fusible polymeric material melts and then, when solidified, substantially binds the coil in its deformed state.

Abstract: A cable splice protector for protecting one or more cable splices located in an inner recess defined by the combination of a first inner shell and a second inner shell, an outer recess for containing the two inner shells including a first outer shell and second outer shell, the cable splice being compressively sealed from the element where the spliced cables pass through apertured grommets associated with the first and second inner shells.

Abstract: The present invention concerns a joint for electrical cables comprising at least a first layer constituted by a mixture of a polymeric matrix and a filler which is constituted by polymer comprising functions in its monomer units which homogeneously distribute the electrical filed, surrounded externally and coaxially by a second layer constituted by an elastomer. The layers are intimately associated with each other with an adherence greater than or equal to 5 N.cm.sup.-1.

Abstract: A combination seismic cable handling loop and electric splice includes a U-shaped elastomer member arranged to be hung on a hasp during transportation and storage, and an integrally formed cylindrical elastomer body on the lower end of the U-shaped member which encloses a splice card by which electrical conductors in the end portions of seismic cable sections are joined, such end portions extending through the outer portions of the body which provides strain relief.

Abstract: Limiters for protection against fault currents in electrical distribution networks the limiter having externally visible indicator for indicating that a limiter element has fused and which visible indicator may be reset and reused after a fused limiter is replaced.

Abstract: A substrate (12,14) is enclosed with a heat recoverable backing with a layer of a thermosetting adhesive composition (20) comprising an amorphous thermoplastic resin and a thermosetting resin positioned between the heat recoverable article (10, 26) and the substrate (12,14). The adhesive composition can be in the form of a self supporting sheet or tape or it can be on a surface of the heat recoverable article (10). In some embodiments, a polymeric insert (32) is also used to ensure adequate sealing between the substrate and the thermosetting adhesive.

Abstract: Two electrical conduit sections are attached to a thermal expansion joint which permits relative axial movement between the conduit sections. One of the conduit sections has an end portion which is axially slidably disposed inside of the expansion joint. A ring shaped grounding element is mounted on a screw thread formed in that slidable end portion and is disposed in sliding connection with a cylindrical surface of the joint which surrounds the slidable end portion.

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: A tooless environmental splice enclosure capable of fitting within an aerial splice case is disclosed. The environmental closure permits sealing and reentry to a cable splice region.

Abstract: A bonding method joins together a plurality of conductively coated polymers in a single operation. The method employs heat generation via a high energy source, whose output is focused by an energy director which causes fusing of the polymer surfaces along with fusing of the metal surfaces at their respective interfaces to form a robust electrical and mechanical bond.

Abstract: A hydrostatic sealing sleeve hydrostatically seals a spliced wire connect in high pressure underwater conditions. The sealing sleeve is fashioned from an elastomeric compound, such as neoprene, and is fitted over one end of an insulated wire that is to be spliced onto a butt wire splice. The other insulated wire is spliced together with the first wire and the sealing sleeve is then slid over the butt wire splice where it rests in a centrally located cavity inside the sleeve. The outer ends of the sealing sleeve include sealing baffles which compress onto the outer peripheral surfaces of the insulated wires, creating a high pressure water tight seal.

Abstract: An arrangement for forming a stub splice between two or more elongate electrical conductors comprises a hollow electrical connector and a hollow cap containing a quantity of gel. In use, the cap engages an open end of the connector, and the elongate conductors extend through the open end of the connector and through one or more apertures contained in the cap. Once the cap is engaged, the gel is compressed and the splice is sealed against moisture ingress. In order to ensure that the gel is maintained under compression, the cap may optionally contain a quantity of non-gelatinous resiliently compressible material which substantially compensates for any changes in the volume of gel.

Abstract: A transition joint for sealing an electrical coaxial cable having an oil-impregnated or fluid filled layer. The transition joint has two primary elements, an electrically insulative elastomeric tube and a heat recoverable sleeve. In connecting a paper-insulated, lead jacketed cable to an extruded dielectric cable, the elastomeric tube is placed in tight conformity around the paper layer, slightly overlapping the lead jacket and the central conductor, and further partially overlapping a connector joining the conductors of the cables. The heat recoverable sleeve is then contracted over the elastomeric tube, overlapping the lead jacket and the central conductor, and partially overlapping the connector. The heat recoverable sleeve mechanically restricts the elastomeric tube, preventing the elastomeric tube from swelling which, in turn, precludes absorption of the oil, which would otherwise cause the elastomer to degrade.

Abstract: An electrical component has a body (1) and a plurality of leads extending from the body, and is enclosed in an insulating plastics sleeve (4) that extends over the body and leads. The sleeve (4) has a number of heat-recoverable end portions (6, 7) that extend over the leads and enclose a quantity of solder (8, 9), so that the leads can be permanently connected to further terminals by heating the end portions of the sleeves to cause them to recover and the solder to fuse.

Abstract: A sealing compound consisting of one-part liquid type moisture curing resin is covered airtightly with a permeable wall member forming a container, so as to harden together with the connecting portions of electric wires or the like by exposing the sealing compound to environmental moisture when inserting the connecting portions into the container.

Abstract: A multi-layer lead frame for a semiconductor device includes a signal layer made of a metal strip having a signal pattern including a plurality of lead lines. A power supply or ground layer is adhered and laminated to the signal layer by means of an adhesive film. The adhesive film is an electrically insulation connector tape having through holes extending in a thickness direction. Conductive metal vias are filled in the through holes for electrically connecting the power supply or ground layer particular leads among the plurality of lead lines.

Abstract: A device 1 for forming an electrical connection between a plurality of electrical conductors comprises an electrically insulating sleeve (3), a metallic connecting element (4) located within the sleeve and a quantity of solder (8) for forming a permanent electrical connection between the conductors. The connecting element (4) has an external surface that is uneven so that a significant proportion of any radiation that is radially inwardly directed onto the external surface of the element will be reflected at least twice by the external surface of the element.This uneveness enables the response of the device to heating by infrared radiation to be significantly improved. The connecting element may be formed for example by coiling a wire having a polygonal, e.g. square, cross-section into a frusto-conical helix.

Abstract: A cable splice enclosure (10) including a pair of cover members (12,14) joined along a flexible hinge (62,64) and rotatable together about the hinge to enclose a cable splice (150) and secure to each other with latches along both side edges (16,18;92,94). Sealant material (120) disposed within central regions (32,34) of both covers environmentally seals the surfaces of the splice connection (154,158,160) upon full closure. Embossments (44,46) on both sides of the cable-receiving channels (20,22) in associated pairs (40,42,48) proximate the cable exits include resilient flange portions (52,54) cooperate to press into the cable insulation upon full closure to define a strain relief.

Abstract: A wire connector having a conductive barrel with a solder disc disposed in the barrel with wire retaining means to hold the wires in place during heating and melting of the solder disc to form a permanent connection. A shrinkable sleeve, provided with means of sealing, formed around the barrel and extending beyond the ends of the barrel is also shrunk down onto the wires to seal and insulate the connection and hold the wires.

Abstract: A flat cable which has a connection termination with interlayer peeling films interposed between conductors and insulating films at predetermined intervals along a length of the flat cable. When connecting the flat cable, by cutting the termination with the interlayer films, the insulating film ends and interlayer film ends positioned at the cut portion are folded back to form a folded back portion. This folded back portion is made to catch on to the protective insulator of the connection device, so as to prevent poor contact etc. by ensuring that no intolerable force acts on the connection portion of the conductors even if a tensile force is applied to the connection portion. Further, in the connection termination, connection terminals are inserted between the interlayer peeling films and connectors to connect to the conductors.

Abstract: End faces of copper alloys to be used for electrical conductors are placed in contacting relationship under a compressive force below the yield strength of the copper alloy conductor in the room temperature condition. The contacting end faces are heated under continuous compression at a temperature of at least 300.degree. C. but below the solvus temperature of the copper alloy in at least one heating cycle.

Abstract: A device (1) for forming an electrical connection at the end of a bundle of wires (2) comprises an electrically insulating, preferably heat-shrinkable, sleeve (3), a metallic connecting element (4) located within the sleeve, and a quantity of solder (8) for forming a permanent electrical connection between the conductors. The connecting element (4) has a tapering internal surface which has a screw thread so that a temporary electrical connection can be formed by screwing the bundle of wires into the connecting element. Preferably the connecting element is formed by winding a wire, e.g. hard tempered copper wire, into a frusto-conical form. Splices in wire bundles may be made by means of a device in which the connecting element has a pair of internally threaded portions into which different cable bundles can be screwed.

Abstract: A transition joint for sealing an electrical coaxial cable having an oil-impregnated or fluid filled layer. The transition joint has two primary elements, an electrically insulative elastomeric tube and a heat recoverable sleeve. In connecting a paper-insulated, lead jacketed cable to an extruded dielectric cable, the elastomeric tube is placed in tight conformity around the paper layer, slightly overlapping the lead jacket and the central conductor, and further partially overlapping a connector joining the conductors of the cables. The heat recoverable sleeve is then contracted over the elastomeric tube, overlapping the lead jacket and the central conductor, and partially overlapping the connector. The heat recoverable sleeve mechanically restricts the elastomeric tube, preventing the elastomeric tube from swelling which, in turn, precludes absorption of the oil, which would otherwise cause the elastomer to degrade.

Abstract: A solder material comprises a first solder plate and a second solder plate having a thickness equal to or larger than 1 micron provided at the both surfaces of the first solder plate comprising material having a lower melting point than the first solder or material which reacts with the first solder to produce an alloy having a lower melting point than the first solder.A junctioning method comprises putting the above-described solder material inserted between two objects to be junctioned to each other; heating the solder material to a temperature higher than the melting point of the second solder or the alloy and lower than the melting point of said first solder thereby to melt the second solder or the alloy; and thereafter cooling or keeping the solder material at a temperature in the vicinity of the melting point thereby to junction the objects to be junctioned to each other.

Abstract: A coupling of severed antenna wires is arranged to include a heat shrink tube having low temperature solder core arranged to secure respective first and second cable antenna wires together, wherein a metallic mesh connecting tube is arranged to electrically interconnect first and second cable mesh shields. An outer tubular insulative tube of flexible construction is arranged to surround the abutting end portions of the first and second antenna cables joined together.

Abstract: A wire connector having a conductive barrel with a solder mass disposed in the barrel is formed with wire retaining means to hold the wires in place during heating and melting of the solder to form a permanent connection. A shrinkable sleeve, provided with means of sealing, formed around the barrel and extending beyond the ends of the barrel is also shrunk down onto the wires to seal and insulate the connection and hold the wires.

Abstract: A covering for a joint between electric cables, an element including such covering for forming a covered joint and a joint obtained with such covering. The covering includes two radially elastic sleeves of cross-linked polymeric material, one sleeve being inside and co-axial with the other sleeve. In the unassembled state, the diameter of the bore of the outer sleeve is less than the diameter of the outer surface of the inner sleeve so that when assembled, the outer sleeve exerts radially inward pressure on the inner sleeve. Each sleeve may be formed of one or more tubular layers of polymeric material.