Abstract: The invention relates to a method of tightly electrically connecting an electric cable (12) to an end member (10) such as an electric contact, it is proposed that the partly bared or stripped end of the cable be introduced into a stepped blind hole (26) formed in a rear connection part (10b) of the member (10). More specifically, the bared cable end is received in two cylindrical sections (26a,26b) of the hole (26), in which have been inserted beforehand a transparent sleeve (30), capping an inspection hole (32), and a metal interface ring (34). The unbared part of the cable is received in a cylindrical entrance section (26c) of the hole (26). Then, by wiredrawing, the partly truncated cone-shaped, outer surface of the part (10b) is deformed in order to give it a cylindrical shape.

Abstract: An electrical crimp connector (1) comprises a crimp barrel (3) located within an insulating sleeve (4), and a quantity of gel (5) located within each end region of the insulating sleeve at each end of the crimp barrel. Each quantity of gel contains an aperture (10) to allow wires (2) to be inserted into the crimp barrel. Once the connector has been crimped, the gel located within each end region of the insulating sleeve seals it against moisture ingress, forming a moisture-resistant electrical connection.

Abstract: A versatile, electrically insulating, waterproof electrical junction and a method of forming the same are disclosed. The electrical junction comprises three layers to effect waterproof encapsulation of two electric leads: a first layer defined by a pair of rubber collars for each of the two leads; a second layer defined by a pair of metal sleeves, a male and a female sleeve; and a third layer defined by a rubber sheath surrounding and encompassing both layers. The three-layered electrical junction preferably is the first and the seconcrimped along its entire axial length to compact the three layers into a waterproof electrical connector characterized by a high packing density.

Abstract: An assembly for forming a semi-permanent electrical connection between a pair of wires (1,2) comprises a male push-fit connector (3) and a female push-fit connector (4).Each connector (3,4) has a connection part to enable it to be connected to the wire, e.g. in the form of a crimp (5,6) and a mating part for engagement to the other connector. Each of the connectors has a sealing jacket (8,10) for sealing the connection to the associated wire, and one of the connectors has a heat-recoverable skirt (11) which, when the connectors are engaged, extends over part of the sealing jacket of the other connector to seal the connection against moisture ingress. The skirt (11) is provided with a layer of adhesive for forming the seal.

Abstract: A heat-recoverable soldering device for soldering electrical conductors comprising a heat-recoverable sleeve and a quantity of solder is provided with a deformable retaining member which retains the conductors in the desired alignment when deformed.

Abstract: A connecting device includes a body with an open end, a closed end and a body bore extending therebetween. A core includes an open end, a closed end and a core bore extending therebetween. The body bore is partly filled with potting compound in proximity to its closed end. The device has a closed position with the core inserted into the body bore and the core open end embedded in the potting compound to form a hermetically sealed pocket in the core bore. The body closed end has wire passages which receive wires therethrough. The wires are electrically connected in the sealed pocket. A method of connecting wires includes the steps of providing a body, providing a core telescopically receivable in the body, partly filling the body with potting compound, extending wires into the body and through the potting compound, connecting the wires, inserting the core into the body over the connected wires and forming a hermetically sealed pocket in the core bore.

Abstract: An electrical connector which is adapted to join two or more wires together and comprises a pair of hollow cylinders joined together and disposed such that one end portion of each cylindrical is free to be bent back upon itself after a wire is inserted therein to make good contact between the cylinder and the wire.

Abstract: A grounding ferrule is characterized by a generally cylindrical hollow member having at least three equiangularly circumferentially spaced axially extending slots which cooperate to define a plurality of circumferentially adjacent webs. Each web has a plurality of radially inwardly extending protrusions provided on the inner surface thereof. The ferrule responds to a radially inwardly directed crimping force applied circumferentially to the exterior surface of the webs by deflecting radially inwardly to define a constricted central region.

Abstract: An apparatus and method for splicing light conductors in composite cables, in particular marine cables, comprising a plurality of spliced cable sections of power conductors and sections of light conductors. With a view to uninterrupted armouring along the entire length and thus the ability to maintain a sufficient tensile and flexural strength, the splice of the light conductors is provided at a distance from the splice of the power conductors and with a cross-sectional contour which essentially corresponds to the cable cross-section. Then the armouring is wound uninterruptedly around the cable and encloses the splices of the power conductors as well as the light conductors.

Abstract: A method is described for making an electrical through connection between a first conduction line comprising a flat conductor to a second conduction line comprising a round conductor. The steps of such method comprise removing end portions of insulation layer from the flat conductor and the round conductor; placing a positioning ring about the exposed end of the round conductor; bonding the round conductor to the flat conductor; extending the bonded conductors with the positioning ring into an injection molding apparatus and axially fixing the round conductor by compressive engagment of the positioning ring by a plunger element; and injecting a plastic material into the injection molding apparatus to form an insulating seal longitudinally about the bonded conductors and the positioning ring.

Abstract: A method of making a current sensor device is disclosed wherein a sensor, having a magnetoresistive element configured into a bridge, an insulating substrate and a conductive member are sub-assembled and then the sub-assembly is heated to bond the components together. The bridge is attached to a first substrate having a first layer of insulation with first vias therein in which are deposited first elements of solder projecting beyond the first layer of insulation. Second elements of (e.g.) solder are deposited in second vias in a second layer of insulation on the second substrate. When the components are sub-assembled, the first elements rest on the second elements to provide a clearance between the first and second layers of insulation.

Abstract: This invention relates to a sealed solder connector assembly and method of use operable to interconnect adjacent conduit wire members having exposed wire sections extended from insulated cover sections. The sealed solder connector assembly includes (1) a main support member constructed of a flexible plastic tubing; (2) a wire anchor member constructed of a low temperature melting point solder material placed interiorly and centrally of the main support member; and (3) an interior anchor coat of a temperature controlled adhesive film anchored to an interior surface of the main support member. Application of heat to the main support member results in (1) initial securing of the wire anchor assembly centrally of the main support member; (2) anchoring and sealing the main support member about the conduit wire members; and (3) melting and fusing the wire anchor member to the wire sections of the wire members.

Abstract: An article and process for splicing electrical wires that are to be exposed to an adverse environment. The article includes a connector, an insulating sleeve adapted to retain the connector, and an encapsulant. The encapsulant, which is disposed within the insulating sleeve, has a cone penetration value of 100 to 350 (10.sup.-1 mm) and an ultimate elongation of at least 200%.

Abstract: This invention relates to a submersible electrical cable splice, and the method of making the same. It employs a housing sleeve of an elastomeric material which is hollowed out to include a central cavity connected at each of the ends by bores which are of slightly smaller diameter than the cables which are to be connected. In the process of making the splice, one end of the housing sleeve is lubricated, and one of the cables is pushed clear through and out the other end of the housing, where it is joined to the other cable end in abutting relation in a metal crimp connector. The joined cables are then pulled in the opposite direction back through the bore of the housing sleeve, until the crimping connector seats in the central cavity, which is of slightly smaller diameter than the crimping connector, squeezing out the air. It should be understood that a pocket or void or space is to be eliminated or reduced to insignificant amounts.

Abstract: A connection system for electrical conductors is disclosed. The system involves an outer sheath manufactured from a material transparent to ultraviolet light. A tubular, deformable crimp ferrule is inserted within the sheath. Thereafter, a portion of ultraviolet-curable adhesive is placed within the ends of the sheath, which are covered with cap members to retain the adhesive inside. To connect the conductors (e.g. insulated wires or cables) the ends thereof are pushed through the cap members, through the ultraviolet-curable adhesive, and into the crimp ferrule. The crimp ferrule is then deformed to securely engage the ends of the conductors. Ultraviolet light is subsequently applied which passes through the sheath, causing the adhesive to solidify. The foregoing process produces a strong and secure bond between the conductors, and is readily adaptable to large-scale, mass production manufacturing conditions using a minimal amount of time and labor.

Abstract: A simple and highly effective method and apparatus for field terminating flat power cable such as used in undercarpet wiring systems. Each conductor, with tightly bonded insulation, of a multi-conductor flat power cable is (at the point of installation in-situ) slotted or cut through with thin narrow slots which leave corresponding narrow rectangular openings through the insulation and conductor. Then a thin conductive device or terminal with corresponding ribs which easily though precisely fit into the slots, is placed in the slot openings, is secured in place on the cable by a suitable means, and the assembly then crimped or flattened together to give a pressure-tight high-conductivity, electrically stable termination only about twice as thick as the insulated conductor. The applicator tooling may be a simple punch and die, and a hammer or pliers. An insulating "bandage" is applied over the termination and bonded to the conductor insulation thereby giving a water-tight joint impervious to corrosion.

Abstract: A process to manufacture control cable comprising feeding of a plurality of parallel conducting wires between an upper and a lower plastic films to be preheated in respective tunnel type heaters, and then formed and cooled by forming rolls, transferred by transmission rolls for cutting along gaps between two consecutive wires at appropriate pitch by roller cutters, the wires so processed are then twisted by a twisting machine, covered with metal foil first, and then braided copper network made by a braiding machine, and finally a PVC insulation layer by a PVC injection machine. The finished product is finally collected by a product collector.

Abstract: Superconductive conductors, having as many as thousands of filaments, are joined together to form a true superconductive joint. The method is particularly applicable in the situation in which superconductive filaments are embedded in an overlying or surrounding matrix of resistive material such as copper or aluminum. The resistive material is removed by chemical dissolution to expose a length of superconductive filaments. The filaments are juxtaposed within a sleeve of superconductive material which is crimped about the exposed filaments. The connection may be completed by thermally fusing the exposed ends of the filaments.

Abstract: A molded buswork and method of manufacturing the buswork, including a conductive T-shaped member having openings at the ends, insulated cables having the insulation at the ends of the cables stripped away to expose the ends of the conductors, an individual exposed conductor being crimped in each open end of the conductive member, the conductive member being supported in a cavity mold by the cables, the cavity mold being filled with a thermal-setting silicone rubber, the silicone rubber curing in the mold to encapsulate and bond to the conductive member, the exposed ends of the conductors, and the insulation on each cable.

Abstract: In a process for making a connection between superconductive wires constituted by one or more strands or filaments of superconductive material embedded in a metallic matrix, the metal constituting the matrix is previously eliminated over a certain length of wire, corresponding to the desired zone of contact between the wires, so as to expose the or each strand of these wires. Thereafter the linkage is established between the strands by exerting thereon a strong pressure, cold.The visible superconductive strands of the two wires are applied, near one another, on a support. A strip of superconductive material is then applied on the visible strands and a sheath made of a material which is a good conductor of electricity is placed around the assembly constituted by the support, the strands of the superconductive wires and the superconductive strip.

Abstract: To effect a mechanical and electrical interconnection of high integrity between flat multiconductor cables, a jig system is disclosed wherein a base plate is specifically designed with a plurality of guide pins arranged in a predetermined pattern for locating a plurality of common length connector strips for establishing connections between matching cable conductor pairs. The base plate further includes a plurality of locator pins for precision alignment of 3, 4, or 5 conductor cables for either tap or splice connections with the cables juxtaposed. The cables are in overlying relation to connector strip eyelets at opposite ends of each strip for establishing a connection between a matching conductor pair.

Abstract: The invention relates to an improved method to connect one or more non corrodible, valve metal anodes whose surface has been activated by a deposit of non passivatable material, to a power supply cable, insulated by a sheath of rubber or other elastomeric material, to make flexible anode assemblies to be used for the cathodic protection of metallic structures, either in water or soil environments.Each anode is provided with a valve metal sleeve, which may be inserted along the cable and then swaged first directly onto the cable's conducting core, previously stripped of its insulating sheath, in correspondence of the central portion of the sleeve, and subsequently swaged at the two ends directly onto the insulating sheath of the cable. Bushes of a ductile metal or alloy, preferably anodically dissoluble, are disposed onto the valve metal sleeve before swaging, in order to take up the wrinkling and allow a more uniform circumferential reduction of the valve metal sleeve over the cable.

Abstract: An advantageous anodic structure, particularly useful for cathodic protection of metal structures having a large linear extension, is made of an insulated power cable having suitable terminal at least at one end for the electrical connection to the positive pole of the electrical source and of a series of anodic segments distributed over the length of the power cable, coaxial with the cable itself and electrically connected through a leak-proof connection with the conductive core of the insulated power cable without interruption of the core continuity.

Abstract: A cable connector is provided which is particularly adapted for use in the field whereby the connection may be quickly and reliably made without the use of special tools other than those ordinarily carried by welders and electricians, such as screwdrivers, knives and hammers. The connector comprises a length of copper tubing having an inside diameter slightly larger than the outside diameter of the cable to be connected. The copper tubing is slotted along its length to define deformable portions which are forced into the cable strands after the ends of the cable to be connected have been inserted into abutting relation through opposite ends of the tube.

Abstract: An apparatus and method are described for preconnectorization of the ends of a cable for pulling through a standard diameter duct. The apparatus utilizes a connector consisting of three major parts: first and second wire organizers and a contact element means. The wire organizers are of a form factor sufficiently small and are organized such as to fit around the cable core without increasing the outside composite diameter of the cable. The apparatus further includes two forms of cable pulling devices.

Abstract: A device for forming a mechanical and/or electrical connection between a plurality of elongate objects 1, 2, for example bus bars in electrical switchgear, comprises one or more inserts or shell members 9, 10 that can be positioned about the ends of the objects to form a tubular assembly extending between the objects.One or more memory metal drivers in the form of bands or rings 7, 8 may be provided for retaining the tubular assembly in position and forcing the shell portions against the objects 1, 2 so that a good electrical contact is formed. Preferably an annular protuberance or contact surface 12 is provided on the internal surface of the shell members 9, 10 at each end thereof, and are preferably arranged so as to be partly flattened as the bonds or rings 7, 8 contract, thereby increasing the contact area between the shell members and the objects 1, 2.

Abstract: A tool for simultaneously gripping and positioning a hollow crimping sleeve adjacent a crimping means and retaining two elongate electrical conductors with their bared ends within such hollow sleeve to allow the crimping of such sleeve and conductor ends into a mechanical and electrical joint. A base contains a central sleeve support covered by two separately operable arms, each of which contains a partial sleeve support and cable retaining means. With the sleeve fully supported and the cable positions fixed, the centrally located crimping means is activated by hammering the crimping means or tightening a fastener on a threaded stud.

Abstract: In providing an electrically insulative covering for a cable splice, a sleeve is assembled with an outer rigid shell and is maintained in fluid-sealed relation therewith. A supply of positively pressurized air is placed with the assembled sleeve and outer member, in fluid-sealed relation with the sleeve interior. The sleeve is expanded into contiguous relation with the outer member by the pressurized air. The expanded assembly is placed over the splice and the fluid-sealed relation of sleeve and outer member is interrupted, causing the sleeve to collapse upon the splice and cables, whereupon the outer member is removed and discarded.

Abstract: The invention relates to an article suitable for making an electrical connection between two electrical conductors, for example an earth conductor and the outer conductor of a coaxial cable. The article comprises a first, heat-shrinkable, sleeve (1), a quantity of solder (2) positioned within the sleeve, and a second sleeve (5) an outer surface of which, together with an inner surface of the first sleeve, forms a passage for receiving the earth conductor. Stop means are provided for axial location of the earth conductor. On shrinking of the sleeve and fusing of the solder, an electrical connection can be made between an earth conductor received, in use, in the passage and the outer conductor of a coaxial cable received, in use, in the first sleeve but not in the passage.

Abstract: A connector for holding and aligning optical fiber waveguides is produced subjecting a tube encompassing a wire mandrel to a high-energy forming process which forms the tube into an arcuate shape having a bore for receiving the ends of the waveguides.

Abstract: A first cable is spliced to an intermediate portion of a second cable by inserting an end of the first cable and a stripped intermediate portion of the second into a metallic tube, then forging the tube and cable portions together, then bending the first cable at a desired angle relative to the second cable, then soldering the cables and tube together, and then molding a plastic cover over the tube and exposed conductive portions of the cables.

Abstract: An article for connecting together two substrates, for example the inner conductors of two coaxial cables to be spliced, comprises a sleeve having axially slidably mounted thereon at least one spacer, which spacer enables any member subsequently positioned around the sleeve to be spaced at a desired distance from the sleeve. The method, also described, of using the article to join substrates has the advantage that the substrates can be connected without the need to bend them substantially, so preventing damage to the substrates.

Abstract: A flexible, self-tightening mechanical splice between sections of cable or other elongated sections comprises an elongated braided wire sleeve receiving end portions of the elongated sections, and wire clamps securing the ends of the sleeve in circumferential grooves on two-piece grommets mounted on the elongated sections. The mechanical splice may be employed in conjunction with an electrical splice in electrical cable, such as armored electrical cable of the type used to support submergible pumping units in wells, for preventing application of tension to the electrical splice proper. An automobile jack of known construction is modified to provide a tool for forming the wire clamps.

Abstract: A cable splice comprising a metallic sleeve member joining the conductor ends, a layer of adhesive over the sleeve member adjacent insulation and lead sheath, a helically-wrapped insulation layer formed of a thermosetting polymer, an overlapped layer of fabric surrounding the insulation layer, an overlapped layer of lead foil surrounding the fabric layer and extending over the lead sheath a helically-wrapped heat-shrinkable tape layer surrounding the lead foil layer and a heat-shrinkable sleeve surrounding the splice area which resists invasion by corrosive well fluids and consequent corrosive in high pressure gassy wells, and a method for forming said cable splice.

Abstract: A coaxial cable of the type comprising a litz wire with individually enameled strands as an inner conductor and a wire plait as an outer conductor is spliced to a coaxial connector by exposing a top of the inner conductor and stripping part of the insulation from the outer conductor to expose a portion thereof set back from the tip of the inner conductor. Before splicing, the stripped cable extremity is immersed in a solvent for the enamel such as sulfuric acid, then subjected to ultrasonic vibration in a bath containing alcohol or fluorinated hydrocarbons, and thereafter immersed in a solution of tin. After neutralization and drying, the conductor portions so treated are joined to corresponding conductors of the coaxial connector whereupon a sleeve is placed around the joint and crimped to secure the connector to the cable.

Abstract: A method of end-to-end connection single- or multi-conductor electric cables having compressed mineral insulation and apparatus for end-to-end connection. The conductive metal sheath and the mineral insulation which covers the conductor(s) are removed along a short length at each cable end, a metal sleeve is fitted on the ends of the conductors, opposite each other, the sleeve is crimped on the ends of the conductors, a ring made of the same metal is fitted on each cable end, then a cylindrical connection sleeve with thin ends is fitted over the rings, then the ends of the cylindrical connection sleeve are crimped on the rings and on the ends of the cables.

Abstract: This specification describes an improved method for making fire-resistant communication cables that have a core which includes a multitude of individual conductors or pairs with insulation surrounding some or all of the conductors. The conductors are enclosed in a metal sheath that has a welded seam and that is annealed to maintain the flexibility of the cable. The sheath is of larger diameter of the core when welded, but is drawn down to a reduced diameter that hugs the core prior to the annealing. Heat insulation is wrapped around the core to protect the insulation on the conductors from the heat that is used to anneal the sheath. The purpose of the construction is to provide indoor cable that does not propagate flames from a burning area in a building into adjacent non-burning areas. The cable sheath is purposely not bonded to the core to facilitate sheath removal for ease of terminating the cable.

Abstract: A method for splicing electrical wires uses a crimp barrel removably disposed in an insulating sleeve. A first wire is inserted into the barrel, and then the barrel is removed from the sleeve without damaging the sleeve. A second wire is inserted into the barrel and the barrel is crimped to retain the wires. Then the crimp barrel is placed into the sleeve.