Abstract: A sealing material for an electric wire connection, comprising a tape-form releasable material, viscous sealing pieces comprising a waterproofing compound, each piece having a width narrower than the width of the releasable material and being releasably formed on one surface of the releasable material, and a sheet-form base material having a larger area than the viscous sealing piece such that each end of the base material projects over each edge portion of the viscous sealing piece formed in one body on each viscous sealing piece, a sealing method for an electric wire connection using the sealing material, and a method for producing the sealing material.

Abstract: An optical cable portion (10), resident within a cable closure (14), is caused to receive a water blocking arrangement which is effective to prevent water, which enters an internal cable portion (24) through an unintended cut (21) in an outer jacket (18) of a cable portion (20), from entering an interior of the cable closure. A plurality of water blocking materials (30 and 32) are coaxially disposed about the outer jacket and a core tube (26) of the cable portion, respectively, and cooperate with a heat shrinkable plastic tube (34) which substantially covers the water blocking materials to prevent the movement of water from the internal cable portion past the water blocking materials.

Abstract: A ribbon cable or discrete wires, having a layer of thermally stable, crush resistant, fibril microporous heat sealable thermoplastic crystallizable polymer dielectric surrounding said conductor. The thermoplastic dielectric having a void volume in excess of 70%, a propagation velocity of the insulated conductor greater than 85% the propagation velocity in air and the crush resistance being the recovery rate of the material after being under a 500 gram weight for 10 minutes greater than 92% of the initial thickness.

Abstract: A method of manufacturing shielded flat cable comprising a plurality of tape form conductors, arranged in a horizontal plane, and in parallel fashion, and insulation cladding which covers the surfaces of the conductors and is unitary in structure, and using a cladding cable which is formed by the placing of a tear-away wire, comprising materials having a greater physical strength than the insulation cladding, between at least one of the plurality of the conductors and the insulation cladding covering this conductor, in which, in the exposure of a conductor which is overlaid by the tear-away wire, the tear-away wire, along with the area of the insulation cladding which overlays this tear-away wire, is pulled in an angled direction with respect to the surface, and after this a shield layer comprising conductive materials and having a tape form is laid on the surface of the cladding cable and the shield layer is brought into electrical contact with the exposed conductor.

Abstract: A method for making a flexible coaxial cable (38) in which a threaded dielectric core (30) is threadably inserted into a flexible hollow outer conductor sheath (50) to lock the core (30) to the outer conductor (50). The outer diameter (d3) of the core (30) is larger than the inside diameter (d2) of the outer sheath (50) such that the peak-to-peak diameter (d3) of the core (30) is 2/1000 of an inch-5/1000 of an inch larger than the inside diameter (d2) of the conductive sheath (50). The outer conductive sheath (50) comprises a corrugated portion (52) having a plurality of peaks (54) and valleys (56) at a predetermined pitch (P.sub.1) which may be the same or different than the pitch (P.sub.2) of the threaded core (30) with the valleys (56) becoming sufficiently embedded in the core (30) during threading to lock the core (30) and sheath (50) together to provide electrical stability for the cable (38) without causing mechanical deformation of the sheath (50).

Abstract: A method for depositing a composite coating on a substrate is provided. The coating contains a mixture of ductile metal particles and a uniformly dispersed polymer particles. The polymer is present in a concentration effective to reduce frictional forces. The coating mixture is compacted such as by isostatic pressing, formed into strips and then clad to the substrate. One preferred coating contains 0.5 weight percent polytetrafluoro-ethylene in a tin matrix.

Abstract: In the present invention, a method for producing strip cable provided on its periphery with the meshed conductive metal or the woven fiber coated with a conductive material. The method produces a flat cable having multiple signal conductive members encase in an insulating material with the mesh metal outer layer fastened to the outer surface of the insulating material. The strip cable is thus protected from electromagnetic waves. Since the strip cable fails to function as an antenna, the electronic equipment connected to the strip cable does not require a shielding material. By using the strip cable provided with a electromagnetic-shielding effect, electromagnetic waves can be avoided easily and inexpensively. In addition, the varieties of design can be allowed for the electronic equipment.

Abstract: The method of making a miniature co-axial cable of the present invention includes the insertion of a pre-sized, conductive core into an outer cover with supporting material to center the core. The assembly is then heated and the thermoplastic cover and core supporting material is drawn down around the central core. The result is a miniature co-axial cable with a precise amount of air space, or dielectric region between the core and the outer cover.

Abstract: A conformable electromagnetic radiation suppression cover comprising one or more absorbing material(s) and a sealant. The cover conforms to the shape of a reflecting structure due to forces internal to the absorbing material(s) when the cover is subjected to an agent external to the cover. The absorber comprises dissipative particles bound in a conformable polymeric binder. The sealant is positioned to seal the conformable cover to the reflecting structure, and provides environmental protection to the structure and preferably better adhesion between the cover and the structure. In a preferred embodiment, the volume of the cover is varied before shrinkage to produce a cover thickness in the direction of incident radiation, as measured after shrinkage, which produces a preselected resonant frequency for the cover. The cover may include a conductive surface, such as a metallic foil. Impedance matching materials are preferred but not required.

Abstract: The process for dyeing a continuous polymeric flexible substrate such as a film, uses a strip of transfer paper having sublimable dyes deposited on one surface. The substrate and transfer paper are fed simultaneously into a heat transfer apparatus comprised of a heating means and substrate retaining means. The layers are fed into the apparatus so the uncoated side of the transfer paper is proximate the heating means and substrate is proximate the retaining means. The layers are held against the heating means while sufficient heat is applied to the transfer paper to cause the dye to sublime from the paper and diffuse into the intertices of the substrate.

Abstract: A ribbon cable carrying ground and signal wires in a single plane includes, at predetermined intervals, separator materials inserted between the signal wires and the ground wires to facilitate separation upon termination. A method for manufacturing such a cable includes the steps of separately guiding the signal and ground wires to a lamination station, and means for inserting the separator material between the signal and ground wires at predetermined intervals prior to lamination.

Abstract: The end portion of a wire wound noise preventing resistance cable in which a resistance wire is transversely wound around a core formed from an elastomeric compound is terminated such that the resistance wire is fully embedded in the core by applying heat and high pressure to the leading end that remains exposed after the cable is cut and the end portion thereof is stripped of a covering layer. This construction of the end portion of the core prevents unraveling of the resistance wire and maintains a good electrical connection between the resistance wire and a metal terminal.

Abstract: A method is disclosed for forming longitudinally watertight sealed portions in a cable bundle comprising a plurality of cable strands which employs a composite adhesive strip having at least two layers, a first layer consisting of a mass having good adhesive properties at ambient temperature, and a second layer consisting of a melt adhesive. At the location of the portion to be sealed, the layer of the composite adhesive strip having good adhesive properties at ambient temperature is adhesively secured to the spread-out cable strands of the cable bundle to be sealed. After winding the cable strand layer provided with the composite adhesive strip upon itself or folding it together, an outer heat-shrinkable material (hose or sheet material) is applied about the portion to be sealed.

Abstract: A paper-polymeric material, laminated tape, an electric cable insulated with such tape and a method of making the tape. The tape includes a film of polymeric material to at least one surface of which a paper tape comprising cellulose fibers is bonded by contacting the paper tape at room temperature with the film heated to a temperature above its melting temperature. Prior to contacting the paper tape with the heated film, fibrils are caused to project from at least one surface of the paper tape by subjecting it to a high voltage, electrostatic field. In the laminated tape, the fibrils are embedded in the material of the film to provide an improved bond between the film and the paper tape.

Abstract: A process and apparatus for applying sealing glands to electric lines. The sealing glands are positioned in guide sleeve, and the electric line is held by centering jaws so that the electric line and the sealing gland are in alignment with each other. Clamping jaws secure the electric line a short distance behind the end of the line, which is secured with very little play in the centering jaws. A ram is inserted into the guide sleeve, and moves the guide sleeve and the sealing gland toward the electric line until the sealing gland strikes the centering jaws. The centering jaw mechanism then moves toward the clamping jaw mechanism, and the sealing gland is pushed over the electric line.

Abstract: A method of manufacturing a sensing element, comprising bringing a first body in the form of an oil-free cross-linked matrix of flexible elastomeric material, the matrix containing electrically conductive particles, into contact with a second body of flexible elastomeric material that is electrically insulating and that contains an oil compatible with the elastomeric material of the first body, and allowing oil to migrate from the second to the first body so as to cause swelling of the first body, the migration continuing until a state of oil phase equalisation between the two bodies is reached.

Abstract: A cable is sealed at a conduit such as an outlet from a housing and preferably also terminated and blocked by shrinking over it a conductive polymer article having at least three portions. An end portion is shrunk to engage cable jacket, an intermediate portion is heat-shrunk to drive an adhesive into interstices between the conductors of the cable, and an opposite end portion is shrunk to engage the conduit.

Abstract: A resin coating of a wire harness is shaped in the following manner. A laminated sheet formed by integrally laminating an outer skin sheet made of semi-hard resin and an unfoamed foamable sheet made of foamable resin material, is placed along a cavity wall surface of a shaping mold with the foamable sheet directed to the inside, a bundle of wires having terminals, connectors or the like attached to their opposite ends are disposed within a space defined by the laminated sheet, and by heating the shaping mold the foamable sheet is heated and foamed. A protective coating layer made of foamed resin and protective coating layer made of an outer skin sheet can be simultaneously shaped by the mold.

Abstract: This invention relates to a deactivatable tag useable with an electronic article surveillance system and comprised of planar conductive material cut into a pair of inverse, first and second spiral conductors wrapped about each other and positioned for capacitive and inductive coupling. The invention also relates to method of making tags wherein conductors are cut from a planar web of conductive material in a continuous process in a manner that the cutting results in the formation of two spiral conductors without accompanying waste of conductive material, and thereafter positioning the conductors to provide resonant circuits. The conductors of each pair are connected by welding to provide a reliable circuit. A film of electrostatic-charge-draining material on a web of deactivatable tags prevents their premature deactivation.

Abstract: A re-enterable closure assembly for enclosing an elongate substrate such as a telephone or power cable, has an outer sleeve, preferably heat recoverable, and an inner liner to protect the cable against heat and mechanical damage. The liner has two major parts, a support and a disposable layer, thus allowing the outer sleeve to be removed, for repair etc, without damaging the liner. This could not easily be acheived in a one piece liner since a bond generally must be formed between the liner and the outer sleeve to prevent wicking of moisture vapour.

Abstract: The invention relates to a method and an assembly kit for forming locally defined longitudinally water-tight sections in a wiring comprising a plurality of conductor strands, individual conductors and/or cable strands for the electric or electronic control of functions. Inserted between the conductor strands of such a wiring is a plastic element containing, or consisting of, a thermoplastic melt adhesive. This plastic element is caused to expand in response to being heated. A section of a heat-shrinkable component is mounted on the exterior of the wiring. Application of heat causes the shrinkable component to tightly contract around the wiring, and the plastic element positioned between the conductor strands to expand. The contraction of the heat-shrinkable component and the expansion of the plastic element result in the generation of pressure forces within the space enclosed by the heat-shrinkable component, whereby the heat-softened melt adhesive is sealingly forced into any existing voids.

Abstract: In a process and a material for producing an electrically insulating sheathing around a junction between electrically conductive elements, the material comprises first and second layers which have different melting points and which are disposed around the junction in such a way that the layer having the lower melting point constitutes an inner layer around the junction while the layer having the higher melting point is disposed on the outside of the inner layer. The material is pressed around the junction by means of ultrasound welding, with the inner layer softening at least to such an extent that, under the pressure applied thereto by the outer layer, the inner layer fills any spaces between the junction and the outer layer, and the outer layer forming a sealing enclosure around the inner layer and the junction.

Abstract: This invention relates to a deactivatable tag useable with an electronic article surveillance system and comprised of planar conductive material cut into a pair of inverse, first and second spiral conductors wrapped about each other and positioned for capacitive and inductive coupling. The invention also relates to method of making tags wherein conductors are cut from a planar web of conductive material in a continuous process in a manner that the cutting results in the formation of two spiral conductors without accompanying waste of conductive material, and thereafter positioning the conductors to provide resonant circuits. The conductors of each pair are connected by welding to provide a reliable circuit. A film of electrostatic-charge-draining material on a web of deactivatable tags prevents their premature deactivation.

Abstract: A method of re-establishing mutually insulated semi-conducting layers (9, 10) around respective ones of a pair of spliced electric cables, which is characterized in that the semi-conducting layer of at least one cable is terminated with a stable cable insulation (4) as a base. A sleeve (12) for use in the performance of this method consists of a material relatively stable against heat action an comprises a cylinder-shaped part (15) with a predetermined inside diameter as well as a hopper-shaped part.

Abstract: A method and apparatus for enclosing a splice joining at least first and second cable segments prevents water from entering the splice. The apparatus includes a flexible reservoir sealingly attachable to a sealing surface of an end plate assembly. The end plate assembly is sealingly attachable to the cable segments. The pressurized splice closure sections sealingly engage one another and the end plates. The method includes forming a reservoir about the splice, sealing the reservoir to the first and second conductor segments or to the end plates, forming an opening in the reservoir, pouring a curable encapsulant into the reservoir, working the encapsulant into intersitices between the conductors in the cable segments, sealing the reservoir, enclosing the reservoir in a splice closure and pressurizing the splice closure. This method combines a curable encapsulant such as a two-part polyurethane with a pressurized closure such as a 2-type, gas pressurized closure.

Abstract: This invention relates to a deactivatable tag useable with an electronic article surveillance system and comprised of planar conductive material cut into a pair of inverse, first and second spiral conductors wrapped about each other and positioned for capacitive and inductive coupling. The invention also relates to method of making tage wherein conductors are cut from a planar web of conductive material in a continuous process in a manner that the cutting results in the formation of two spiral conductors without accompanying waste of conductive material, and thereafter positioning the conductors to provide resonant circuits. The conductors of each pair are connected by welding to provide a reliable circuit.

Abstract: A composite material comprising a recoverable fabric and a polymeric matrix material may be recovered around a cable splice to protect it. The fabric may have multifilament glass fibres in one direction which may be provided with a continuous coating to prevent moisture that may travel along their length from travelling through the thickness of the composite.

Abstract: This invention relates to a deactivatable tag useable with an electronic article surveillance system and comprised of planar conductive material cut into a pair of inverse, first and second spiral conductors wrapped about each other and positioned for capacitive and inductive coupling. The invention also relates to method of making tags wherein conductors are cut from a planar web of conductive material in a continuous process in a manner that the cutting results in the formation of two spiral conductors without accompanying waste of conductive material, and thereafter positioning the conductors to provide resonant circuits.

Abstract: A wraparound recoverable article comprises longitudinally opposed edge regions which can be brought together to close the article. On recovery of the article a configurational change of or adjacent the closure member can be seen. This can be used as a temperature indicator to show that recovery is complete. Preferably the configurational change is a rotation of the material at the edge regions which results in a white line extending along the length of the closure, and which is not visible before recovery, becoming visible.

Abstract: A method of preventing core water from tracking through an electrical cable to a cable splice area is disclosed. The method incorporates a pair of water blocks placed on each side of the cable splice area which blocks the core water thus preventing entry into the cable splice area. The cable blocks are formed by disposing a curable blocking compound around the cable adjacent each side of the cable splice area. The curable compound hardens to a solid form thereby blocking core water penetration.

Abstract: A wrap-around cable sleeve liner is formed from a blank consisting of a smooth covering sheet and a corrugated sheet, which are secured together and have a line of indentations extending at an angle to the corrugations of the corrugated sheet adjacent each end of the sheet to form a bend line for the adaptation portions. The cable sleeve liner blank is preferably cut from a large area panel and has the indentations formed after cutting the blank so that blanks for different sizes can be formed as needed.

Abstract: Electrical joint compounds for the protection of electrical connections are formed from a solution of polymer dissolved in solvent with or without conductive filler. Partially cured thermosetting polymers are preferred as they flow under service conditions to better seal the electrical joints. Thermosetting polymers which cure by an addition mechanism are preferred over those which cure by condensation, and polyimides are most preferred.

Abstract: A support strand is formed of a non-extensible thread wound around an elastic thread in order to restrain the extension of the non-extensible thread within such a limit that the coil of the wound, non-extensible thread can follow movement of the elastic thread. A signal transmitting strand is further wound around the outer surface of the support strand to form the composite strand.

Abstract: A lead sheathed power cable especially useful for powering electric submersible pumps in brine wells. The cable is easy to grip and support and resists damage during flexing and chemical attack. The cable comprises at least one power conduit, vulcanized filler material enclosing the power conduit, a lead tube enclosing the filler material, a spacer assembly enclosing the tube, and an outer armor sheath. The armor sheath has a helically grooved inner surface which is interfitted with a conforming helically grooved outer surface on the malleable tube. The outer surface on the tube is helically grooved during initial heating of the cable, which vulcanizes and thermally outwardly expands the filler material and outwardly expands the tube so that the groove on the armor sheath is impressed into the tube.

Abstract: This invention relates to a deactivatable tag useable with an electronic article surveillance system and comprised of planar conductive material cut into a pair of inverse, first and second spiral conductors wrapped about each other and positioned for capacitive and inductive coupling. The invention also relates to method of making tags wherein conductors are cut from a planar web of conductive material in a continuous process in a manner that the cutting results in the formation of two spiral conductors without accompanying waste of conductive material, and thereafter positioning the conductors to provide resonant circuits.

Abstract: A film is disclosed which will accommodate high shear strain in a rigidly supported epoxy impregnated Nb.sub.3 Sn superconducting coil (SCC). In a generator application the SCC is subjected to a combined load due to differential thermal contraction, magnetic, and centrifugal forces. These strains could lead to coil fracture and resulting degradation of the field and current-carrying properties. A low modulus material at the interface between the SCC and support structure will reduce or distribute the shear strain to an acceptable level, i.e., no degradation in current carrying properties. Two film materials, polyethylene terephthalate Mylar (DuPont Chemical) and polycarbonate Makrofol KG (Mobay chemical) are disclosed as suitable damping or interface films. An adhesive such as the polyurethane Bostik 7070 is used for affixing the film to the winding surface.

Abstract: Fluid is directed against an article of indefinite length to support the article as it is moved along a passline. The fluid may be used to modify the temperature of the article. The method and apparatus disclosed are particularly applicable to supporting a telecommunications cable while cooling extruded jacketing material on the outer surface of the cable.

Abstract: After the process of manufacturing a cell of a display device, a thick film conductor is bonded onto the terminal portion of a transparent electrode of the display panel by a dry or wet transfer mounting method and a flexible printed circuit board for a driver is soldered on the thick film conductor, such a display device; a process for producing the display device; and a decal for dry or wet transfer mounting method to form a display panel terminal are disclosed.

Abstract: This invention relates to an assembly of a splice between a cable containing paper insulation and a cable containing oil or petroleum based materials wherein the splice, or at least the end of the cable containing the oil or petroleum based material, is encapsulated in a particulate material such as calcium carbonate and placed under compression in order to prevent the oil or petroleum based material in one cable from migrating into the splice area or into the other cable and damaging the paper insulation in the splice or the other cable. The assembly also prevents the migration of water from either cable into the splice area.

Abstract: This invention provides a fabric for RFI/EMI shielding wherein the fabric is woven, braided or warp knitted from yarns which comprise conductive fibers and non-conductive fibers wherein the conductive fibers comprise from about 10% to about 80% by weight of the fabric.

Abstract: A branch-off region at an end of a sleeve (2), enclosing for example a branch in a telecommunications cable, is sealed by a method which includes positioning at the end of the sleeve (2) some means for example a clip (1) or a filling piece that forms terminal conduits (3), positioning a heat-activatable adhesive (5) in the end, and activating the adhesive by a heating means such as an electrical heater.

Abstract: A reinforced electrical cable having a plurality of conductor assemblies in an armor covering, and filler material filling the interstices between the conductor assemblies and the armor covering, and the method of forming the cable. Each conductor assembly includes a core of conducting material, a layer of insulation which surrounds the core, a second layer of chemical barrier material which surrounds the first layer and a layer of reinforcing material surrounding the insulation layer. The plurality of conductor assemblies are then arranged as desired and the filler material (in the unvulcanized state) is placed around and between the conductor assemblies. The quantity of filler material placed between and around the conductor assemblies is sufficient to fill the interior of the armor covering in its unvulcanized state. The armor covering is next placed around the conductor assemblies and the filler material. The unvulcanized filler material conforms to the interior of the armor covering.

Abstract: A shrinkable tubular article comprises a tubular inner elastomeric member held in a radially expanded configuration by a tubular outer restraining means. The restraining means is prepared from a blend of a relatively rigid thermoplastic material and a segmented copolymer having at least one segment compatible with the thermoplastic and at least one segment compatible with the elastomer of the inner member. Optionally, the restraining means contains a tackifier. The inner surface of the outer member and the outer surface of the inner member are directly bonded together (i.e. without an interfacial adhesive). The bond between the members is sufficiently strong to restrain the inner elastomer member from shrinking to, or toward, its unexpanded configuration. In addition, the bond weakens sufficiently on application of solvent to permit the elastomeric member to peel away from the restraining outer member.

Abstract: A tubular heat recoverable article has two layers in thermal contact, one inside the other. The two layers have appreciably different recovery temperatures. Shrinking of the article on to a substrate is effected by applying heat to the outer layer (1) of higher recovery temperature such that conduction to the inner layer (2) of lower recovery temperature ensures that the inner layer (2) reaches its recovery temperature, and thus becomes elastomeric, before the outer layer begins to recover. The article, which may be used in an electric power cable splice, thus combines good storage life with good recovery time.

Abstract: An article comprising a generally axially extending outer, tubular member, a plurality of generally axially extending cylindrical members, and a heat expandable foam sealing member. The outer tubular member has at least one opening and occupies a predetermined volume. Each of the cylindrical members is received by outer tubular member in an axially extending, parallel fashion such that the cylindrical members occupy a volume that is less than the volume of the outer tubular member. The sealing member, capable of sealing the opening of outer tubular member, occupies a volume that is generally equal to the difference between the volume of the outer tubular member and the volume of the cylindrical members.

Abstract: An adhesive interconnecting means is comprised of one or more conductors on an insulating substrate, a first adhesive layer, said first layer being anisotropically conductive and disposed over said conductors and substrate and a second adhesive layer said second layer being a flowable adhesive that extends over the first substrate and anisotropically conductive layer. The anisotropically conductive adhesive is comprised of a nonhomogenous mixture of conductive particles in a nonconductive adhesive binder; the conductive particles, of random size and shape, are dispersed randomly throughout the mixture in noncontiguous conductive units, each unit being comprised of one or more individual particles, the units being sufficiently spaced apart to preclude electrical conductivity between adjacent conductive areas on the same substrate.

Abstract: A method of producing a leakage graded coaxial cable having a braided shield, in which ends of the shield wire are dropped as braiding progresses. Gaps in the shield having progressively increasing size are produced through which the radio frequency field leakage occurs, which facilitates providing a constant radio frequency field around the cable. The cable is coated with a jell flooding agent prior to extrusion of its protection jacket, which fills the interstices and gaps of the shield, and solidifies to a waxy, semi-resilient consistency. The resulting cable can be coiled and flexed, maintaining its shield reliability, and rejects water and fluids in case pinholes in the jacket occur.

Abstract: Wire which has been coated with a polymeric material is useful in a wide variety of applications. One such application is as a winding for electrical equipment such as motors, transformers, magnetic coils, relays and the like. Generally, coated wires of this type have been prepared by coating the wire with multiple layers of a solution of the coating material. It has been determined that metal wires can be satisfactorily coated with a specific type of thermoplastic composition in a single layer without using solvents. This process utilizes a tubing type cross-head die with the thermoplastic composition comprising a mixture of 80% to 99% by weight polyethylene terephthalate and from 1% to 20% by weight of polyethylene, polypropylene, or a mixture thereof.

Abstract: An adhesive interconnecting means is comprised of one or more conductors on an insulating substrate, a first adhesive layer, said first layer being anisotropically conductive and disposed over said conductors and substrate and a second adhesive layer said second layer being a flowable adhesive that extends over the first substrate and anisotropically conductive layer. The anisotropically conductive adhesive is comprised of a nonhomogenous mixture of conductive particles in a nonconductive adhesive binder; the conductive particles, of random size and shape, are dispersed randomly throughout the mixture in noncontiguous conductive units, each unit being comprised of one or more individual particles, the units being sufficiently spaced apart to preclude electrical conductivity between adjacent conductive areas on the same substrate.

Abstract: The individual conductors in each layer of a layered cable are located and connected by first joining each of the conductors in the layer and thereafter separating the conjoined conductors along a predetermined path defined by reference to a predetermined indicia carried by one of the conductors in the layer.