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: An arrangement for forming a joint between electrical cables comprises a connector arrangement, e.g. a crimp connector, a fusible block capable of being positioned to enclose the connector and a heat-shrinkable sleeve having a recovery temperature at least 10.degree. C. above the melting point of the fusible block. Preferably the fusible block is formed from a number of interlocking component parts. The arrangement is particularly suitable for forming joints between submarine cables, and may include a tubular shield portion for connecting the shields and shielded cables.

Abstract: There is disclosed a cable closure which includes a central closure body and a pair of end caps preferably made from structural foam situated at each end of the closure body. There is also disclosed a cable block which includes void filling material selectively inserted among the insulated conductors of the cable and a directional control device which consists of a conduit also selectively inserted among the insulated conductors of the cable. Together the cable closure, cable block and directional control device make up the splice closure system. There may also be provided a heat recoverable seal adhesively attached to the cable closure in which case there will also be provided means for preventing milk-off of the seal from the cable closure. finally, there is disclosed a method for forming the cable block.

Abstract: An enclosure (1) around a substrate (3) such as a telecommunications cable is made pressure retaining by the provision of re-entrant seals (5), generally V-shaped in cross-section, that are positioned at the region where the enclosure is bonded (4) to the substrate pressure within the enclosure thus tends to open the V rather than put the bond in peel. The re-entrant seals may be cut-to-length in the field and a leak path through the resulting open end (23) avoided by using pressure (P) within the enclosure to close the open end or to balance pressure across it.

Abstract: Disclosed is a unitary shielded boot for assembly about a separable connector interconnecting a pair of multiple conductor shielded cables. The boot has a flexible plastic main body lined with conductive shielding and provided with a separable plastic seam lengthwise of its exterior. A shielded guard flap bridges the underside of the seam when closed and provides a highly effective externally insulated shielded enclosure for the separable cable connector. The opposite ends of the boot shield overlap a respective adjacent end of the cable shields and are electrically connective thereto.

Abstract: A connector for a multifiber optical cable in which each of the fibers is retained on a common housing which includes receptacle portions for retaining, respectively, a fitting for the cable, and each ferrule to which respective optical fibers are secured. The housing is preferably molded of a plastic material with intergral constituents for retaining the ferrules and cable fitting. The ferrules extend from the housing and can be secured to respective optical connectors or other devices.

Abstract: A specially constructed partition member subdivides a splice case into separate hermetically isolated compartments. A plurality of insulated conductors are wired through the partition member, with seals therebetween, and optionally fitted with multi-pair plug connectors at one or both ends. Incoming cables are fitted, as needed, with plug connectors for separable connection to any mating connectors on the pass through conductors on the respective side of the partition member. The parts of the splice case housing are independently separable from the partition member to permit reentry and access to any compartment.

Abstract: An electrical medium voltage cable connection enclosure for an oil-filled, paper-insulated cable has a spacer body arranged between a core connection area and a shielding enclosure. The spacer body is a prefabricated, resilient, open-pore foam material body which has an air-free filler of electricity insulating, flowable, impregnating compound and is longitudinally split and put under a resilient pressing force by the shielding enclosure.

Abstract: A heat shrinkable closure is disclosed having a central section which has been hot stretched and cooled while in stretched condition sandwiched between a pair of unstretched end sections and in which one end section has a tapered grooved extension.

Abstract: The long term water intrusion resistance of cable splice systems that use a gelable encapsulant that is pressurized prior to geletion can be improved by providing pressurization means that maintain the pressure on the cured encapsulant above a given pressure p.sub.2 >p.sub.o, where p.sub.o is the ambient pressure. Absent such pressurization means, the pressure on the encapsulant typically decreases with time due to creep or relaxation of nominally rigid components, e.g., a polymeric closure around the encapsulated splice, or varies due to differential thermal contraction. The pressurization means comprises one or more energy storage elements, e.g., an elastic member such as a spring, or a volume of compressed gas.

Abstract: A branch-off seal between a heat-recoverable sleeve, such as a tubular or wrap-around sleeve made from cross-linked polymeric material, and two or more substrates such as electrical cables is effected by using one or more clips the outer legs of which are positioned over the outer surface of the sleeve so as to form an appropriate number of conduits and applying heat to cause the sleeve to shrink aobut the substrates positioned within the conduits. The preferred clips are formed as a trident, the central leg of which extends into the heat-recoverable sleeve and is provided with a layer of a hot-melt adhesive or another sealant so as to enhance the seal formed at the branch-off.

Abstract: A cable joint comprising a pair of end bodies and a longitudinally slotted sleeve which is secured on the end bodies with a sealing system arranged therebetween characterized by the sealing system having two annular portions and at least one longitudinal portion and an arrangement for clamping the sleeve in sealing engagement on the end bodies. Preferably, the sealing system is reusable and the assembly can be accomplished with ordinary tools such as a screwdriver. In one embodiment, the annular portions are separate from the longitudinal portions. In another embodiment, a single ring-shaped element forms both the annular portions and the two longitudinal portions.

Abstract: A shrinkable cable sleeve which is composed of a shrinkable envelope having a meltable inside layer and an inner cable insert. The inner cable insert is composed of a plurality of layers, wherein one layer is activatable by the application of heat, and the plurality of layers includes a basic foil layer and reinforcing elements which may be in a separate layer or embedded in the activatable layer. During assembly, a pressure tight cable sleeve will be produced by fusing the two activatable layers together.

Abstract: A sleeve for enclosing a cable connection, comprising a bendable sheet adapted to be laid around the cable connection. The sheet has a series of equally spaced longitudinal cuts in at least one marginal portion to be arranged transversely of the longitudinal direction of the cable connection. The cuts subdivide the marginal portion into tongues so that as the sheet is laid around the cable connection, the tongues can be laid with a partial overlap tapering down onto the cable sheath at the end of the cable connection. The longitudinal cuts are formed by cutting lines which extend in a direction deivating from the longitudinal direction so that the free ends of the tongues are offset with respect to the base portions of the tongues in a direction transversely of the longitudinal direction.

Abstract: A cable enclosure for enclosing electrical cable splices, typically telephone cables. An elongate housing having first and second housing members joined together along one edge for movement between housing open and closed conditions, and an elongate header for attachment to a messenger cable, with the housing members being closable about the header. A suspension system is provided for supporting the housing members from the header when in the open condition providing free access to the cables during the splicing operation. The housing members have replaceable end plates for handling various numbers of cables through each end plate.

Abstract: A closure with improved sealing end surface plates for enclosing connecting portions of a plurality of sizes of a communication cable. The closure includes a sleeve-like closure body divided longitudinally into portions. The two portions are fastened and sealed. Grooves are formed on an inner surface of the closure body at opposite ends thereof to accommodate the sealing end surface plates interposed between the cable and the closure body. Each of the sealing end surface plates includes an annular rubber end plate and a pair of plastic side plates.

Abstract: A splice joins two pushing and pulling cables. Each cable has a plurality of gripping members defining a longitudinal cavity, a bendable power line housed in the cavity and elongated tensile elements enclosed and compressed by the gripping members. The adjacent ends of the tensile elements are connected by tensile element splices. Adjacent ends of the power lines are connected by a power line splice. A plurality of splice blocks are located end to end along the longitudinal axis, and enclose and compress the tensile element splices and the tensile element. The splice blocks define a longitudinally extending chamber housing the power line and the power line splice in a relatively stress free state.

Abstract: The invention is directed to a closure system for closing a longitudinally divided cable sleeve having wedge-shaped beads along a parting line and having wedge-shaped clamp rails. One of the rails has a mutual guide element in the form of a resilient strip which is received in the guide channel formed in the other rail and the strip and guide channel have coacting latching elements to hold the rails in a final clamping position. Preferably, at least one of the rails is provided with pegs or abuttments which are provided to aid in moving the rails into the closing position on the beads with a simple lever-like tool.

Abstract: A longitudinally divided cable sleeve has a U-shaped clamp element which coacts with a flexible sheet of heat shrinkable material having a closure element formed along one longitudinal edge. The closure element has a base connected by a neck portion to a longitudinally extending bead around which a portion of the flexible sheet opposite the closure element is wrapped and held by assembling the clamping element thereon. Since the closure element coacts with any portion of the flexible material, the diameter of the sleeve can be matched to the diameter of the article being enveloped in the sleeve.

Abstract: A plastic sleeve for protecting splices of telephone cables and electric cables against moisture comprises two half-shells (1a, 1b) assembled together. The edge (2a) of one half-shell (1a) comprises a rib (12) engaged in a groove (13) formed in the edge (2b) of the other half-shell (1b). One side of the groove (13) is formed by a flexible wall (14). The rib (12) which is engaged in the groove has an inclined face (12a) which forms an angle (a) of a few degrees with the inclined inner face (14a) of the flexible wall (14). The space formed by this angle is filled with a strip of putty (16) which is deformed and compressed between the inclined faces (12a and 14a).

Abstract: A sleeve for protecting cable splices, in particular for telephone cables, comprises two half-shells (3, 4) so designed as to be assembled together along their longitudinal edges (3a, 4a) around the cable splice (2). The opposite ends of the sleeve have jaws (5, 6, 7, 8) for radial clamping and axial retention of the two cable ends (1a, 1b) and means are provided for forming a fluid-tight seal between the two half-shells (3, 4) and between the cable and the jaws. The half-shell (4) comprises two end elements (9, 10) which are intended to be fitted over the clamping jaws (5, 6, 7, 8) and a central element (11) which is placed between the two end elements and covers their adjacent edges (9a, 10a).

Abstract: A boot, or adapter, for an aerial cable or terminal housing is made from hard material in two halves. The two halves are fastened, or hinged, at one longitudinal edge by a eye-hook-like device and at the other longitudinal edge by a snap lock device. An end surface has a plurality of concentric plates which may be snapped out to allow a cable to pass through the boot. The space between the boot and the cable is filled with a compliant, synthetic material.

Abstract: A cable end seal and a closure which includes the cable end seal provides a barrier for a junction against water, the junction being in a cable. First and second end seals are disposed adjacent opposite sides of the junction and palced in compression around the cable, the end seals having an outer convoluted surface which mate with a variable length convoluted tubing bridging member so as to form an environmental closure for the junction.

Abstract: A closure which consists of a closure body having two segmented end seals. Each of these segmented end seals consists of a support structure and at least two pie-shaped end sections. The end sections are sized and configured for mating with the support structure. Each of the end sections has a portion of its periphery which comprises a segment of the periphery of the assembled segmented end seal so that when the end sections and the support structure are mated together the assembled segmented end seal has a uniform periphery. At least one of the pie-shaped end sections contains an aperture for receiving a cable wherein the aperture is located entirely within the periphery of the section.

Abstract: A cable closure includes two spaced end plugs (110-110) through which cable nd portions extend and two cover portions (60-60) which are mated together along tongue and groove portions and held together by C-shaped clamps that engage the tongue and groove portions. Conductors of the cables are spliced together and enclosed in a membranous container (40) which subsequently is caused to be filled with an encapsulant. The cover portions, which in a preferred embodiment are identical, include internally disposed plates each having spaced end strap portions which secure the cable end portions extending through the end plugs into the closure at locations external to the membranous container and prevent unintended lateral, longitudinal and torsional movement of the splice work relative to the encapsulant.

Abstract: A cast cable connection comprising cables having their conductors interconnected and surrounding the conductors a housing containing a cured filler resin therein, said housing comprising bound, flexible, ceramic particles.

Abstract: A wrap-around heat-recoverable sleeve (1) suitable for providing environmental protection around pipes or cables (24) has self-contained electrical heating means powered through closure members (2,3) of the sleeve.

Abstract: A splice between two multiconductor cables is protected from ingress of water by a closure which is filled with an expanding foam sealant which provides pressure inside the closure sufficient to force the sealant into the interstices of the splice and the interstices between the conductors in the cable, which pressure is retained in the closure until the sealant cures or hardens.

Abstract: A molded case circuit breaker plastic support saddle includes means integrally formed therein for supporting the main bus conductors along with neutral conductors. The neutral conductors are arranged as a pair of conductors parallel with and outboard of the main bus conductors. Interconnection between the neutral conductors is made by a C-shaped insulated metal crossarm contained within a two-part insulating casing. This arrangement of the main bus conductors and neutral conductors allows for robotic assembly in a high speed manufacturing process.

Abstract: The present invention involves a cable splice protective insert for cable sleeves. The insert should be of shrinkable material comprising a central part of cylindrical halfshells (1, 2) and deformable side parts (3, 4, 5) for diameter reduction at the cable introduction ends of the faces of the cylinder. The side parts (3, 4, 5) are firmly attached to at least one halfshell (1, 2) and have a corrugation running in the longitudinal direction of the insert. Therefore, a diameter reduction can be obtained in simple manner by applying a radial pressure to the corrugated ends.

Abstract: A seal for a cylindrical article and having two sealing members which coact to form the seal. Each sealing member has a resiliently flexible body which is connected to a rigid support at two spaced positions around the body. An intermediate portion of the body is resiliently flexible outwards between the two spaced positions while two body end portions extending beyond the spaced positions are caused to resiliently flex inwards. Alternatively, outward flexing of the end portions is accompanied by inward flexing of the intermediate portion. The change in shape caused by this flexibility enables the seal to be used upon a range of different diameters of articles.

Abstract: A splice between two multiconductor cables is protected from ingress of water by a closure which is filled with a sealant which is pressurized by a bladder inside the closure to a pressure sufficient to force the sealant into the interstices of the splice and the interstices between the conductors in the cable, and the pressure is maintained by the bladder until the sealant cures or hardens.

Abstract: This invention relates to the mechanical and environmental protection of cable joints, especially in power or other current-carrying cables. Disclosed is a recoverable sleeve which conforms closely to the cable joint, and a non-profiled liner which bridges the joint and comprises a plurality of elongate elements assembled into a sheet. Flexible means is provided for holding the elements in a side-by-side arrangement and allowing the separation between the elements to vary to allow the liner to conform to the profile of the cable joint. Such flexible means may extend across the element and provide a water vapor barrier. Disclosed also is a method of protecting a cable joint utilizing the sleeve and liner. Where the cables to be jointed have metal armor, screen and/or shielding, the elements may be fabricated from metal or metal alloy and may then provide both armoring and a fault current path across the joint.

Abstract: This invention relates to a pressurized telecommunication cable joint closure method and apparatus. Provided is a cylinder comprising a pair of semicylindrical shell members connected together along one elongate edge of each member and releasable securing means on the other elongate edge of each member. The securing means comprises a plurality of projections on one member edge and a matching plurality of receiving means on the other member edge whereas the projections extend radially inward and lie within a plane containing the longitudinal axis of one of the shell members. The cylinder further has interleaved rectilinear fingers at the ends that are for sealing to joined cables. A heat shrinkable wraparound member is used to enclose the cylinder and joined cables.

Abstract: An aerial communication cable closure is comprised of a one-piece, hollow, box-like housing with conical ends having an integral hinge formed at the inside upper surface. The closure includes a pair of interconnecting edges separated by an access slot. The edges are fastened together in a mating engagement after passing a cable through the slot. The closure also includes electrically conductive hanger brackets which are attached to the housing, each having interfitting segments allowing the hanger brackets to hinge with the integral hinge formed in the inside upper surface of the housing. When cable termination is desired for the terminating of cable conductors with service wires, a rectangular compartment with an integrally hinged lid is attached to one side of the box-like housing in which a terminal block is mounted.

Abstract: This invention involves an insert (1) for a shrinkable cable sleeve of heat-resistant and water vapor-impermeable material with a longitudinally split central part (2) and at least one lateral part (10) which has incisions (4, 4a) for the formation of a conical transition. The incisions (4, 4a, 5) in the lateral part (10, 13) are cut obliquely to the longitudinal direction of the insert (1) through an incision angle (EW), so that obliquely projecting strips (3, 7, 8) are formed which, after the insert (1) has been wrapped, for example, around a cable splice, can be turned in spirally to form conically extending transition areas.

Abstract: A recoverable article comprises a recoverable fabric, means for rendering the fabric impervious, and a shaped liner. The assembly can be used to form a pressure resistant splice case for telecommunications cables.

Abstract: A fastener strip arrangement for joining splice cases of the type including a pair of splice case members having outwardly extending flanges positioned in opposed cooperating relationships to define cooperating flange pairs on opposite sides of the splice case. The fastener strip arrangement comprises two elongated strips each of generally channel-shaped cross-section and including a web having legs projecting from opposite side edges thereof in the same direction. One leg of each strip projects from the web a shorter distance than the other leg. One of the strips has generally keyhole-shaped slots formed through the web to extend generally longitudinally thereof. The generally keyhole-shaped slots each have large opening areas and narrow opening areas, with the narrow opening areas lying closer to the short leg of the strip than to the long leg of the strip and with a substantially greater portion of each large opening area being located on the side of the narrow opening spaced toward the long leg.

Abstract: An enclosure (1) around a substrate (3) such as a telecommunications cable is made pressure retaining by the provision of re-entrant seals (5), generally V-shaped in cross-section, that are positioned at the region where the enclosure is bonded (4) to the substrate pressure within the enclosure thus tends to open the V rather than put the bond in peel. The re-entrant seals may be cut-to-length in the field and a leak path through the resulting open end (23) avoided by using pressure (P) within the enclosure to close the open end or to balance pressure across it.

Abstract: An armor for a bridge cable including a specified number of trough-shaped metal covers for covering a bridge cable formed of PC steel wire bundles, male and female fitting parts provided on both side edges of the covers for being fitted to each other, and elastic spacers fitted into and connected to the inside of the cover and having concave parts formed thereon for maintaining the PC steel wire bundles in a mass or assembled state. A joint of the cable cover includes a seal member constituted by a specified number of elastic trough-shaped divided bodies for covering the outer periphery of the cable cover by abutting against each other on the side edges thereof, protrusions projecting from the middle of the inside of each divided body for insertion between the facing end edges of the cable covers, and engaging parts projecting from both ends of the outer surface of the divided body.

Abstract: A splice case for encapsulating a substrate includes first and second containers each of which contain a gel having a cone penetration between 100 and 350 (10.sup.-1 mm) and an ultimate elongation of at least 200%, the gel in each container having an exposed surface, one exposed surface having a cross-sectional area larger than the cross-sectional area of the other exposed surface, the first and second containers being adapted for telescopic engagement.

Abstract: A seal assembly with a split housing provided with two axially spaced recesses for two seals. In each split housing member recess one-half of a seal is held. The two seal halves of each housing member are held in place by an elongate holding member which is secured to the housing member and mechanically holds the seal halves in their respective recesses. Rapid assembly and disassembly of the seal parts is thus possible.

Abstract: Cable splice and closure arrangement to cover a cable region which is devoid of sheath and jacket. At each side of the devoid region, the cable has a strap member encircling it and piercing means of the strap member protrude through the jacket and into the sheath at spaced positions around the cable. An outwardly projecting means of each strap member is intimately embedded in a moulded plastic end of a combined closure and tensile strength means. This combined means may be an integral moulding having the two ends and a portion between the ends and which bridges the devoid region. Alternatively, it may comprise individual moulded plastic ends with tensile means such as steel rods extending between the embedded in the ends. The invention also includes a strain relief device for inclusion in the splice and closure arrangement.

Abstract: A closure for a splice region in cable and method of making it by providing a plastic moulding around the cable jacket. A fluid-tight seal between the moulding and the jacket has inner and outer layers of different materials which eliminate the need to fuse the moulding to the jacket to provide a seal. The inner layer is a compressibly deformable material surrounding and contacting the jacket. The outer layer surrounds the inner layer and is in a circumferentially resiliently stretched condition to compress the deformable material into intimate contact with the jacket and form a first seal region. The deformable layer has an annular portion engaging and fused to the plastic moulding to form a second seal region. The seat is suitable for pressurized and non-pressurized cable.

Abstract: A closure (20) for a cable splice includes two mating covers (23, 24) and two end plate assemblies (30--30). Longitudinally extending joints between the covers are filled with sealing gaskets (141--141). Also a peripheral channel (45) in each end plate is filled with a circumferential gasket (147). The covers are assembled together to enclose the end plate assemblies with the gaskets in the joints therebetween. Then, the covers are moved toward each other and secured together by moving a continuous wire latch support frame (121) which is disposed on each side of the closure and which has a plurality of latching fingers (126--126) mounted pivotally therealong to cause each latching finger to snap past a center bistable position into locking engagement with an aligned seat along the closure. As the covers become secured together, the longitudinal and circumferential gaskets are caused to seal their associated joints.

Abstract: A buried cable splice closure comprising a rigid plastic outer shell having an opening at least at one end through which cables may extend into the closure has a lower chamber adjacent each end opening for support of portions of cables extending into the closure with the cable jacket and any cable shield terminating in the lower chamber. An upper chamber is spaced longitudinally of the closure from each end opening so as to have a lower chamber between each end opening and the upper chamber and the upper chamber has a cable splice support area spaced a distance above each lower chamber when the splice closure is in an upright position. A cable passageway within the outer shell communicates between each lower chamber and the cable splice support area in the upper chamber and means are provided for permitting introduction of an encapsulant into at least each lower chamber.

Abstract: An insulator for covering a splice connection joining multiple exposed conductors. The insulator has an inner foam core and an outer plastic cover which together form an elongated sleeve that fits over the splice. The cover is flexed from an open position where the sleeve fits over the splice to a closed position where two interlocking edges extending along the length of the sleeve mate to hold the insulator in place. In combination, the core and cover prevent dust and moisture from reaching the splice and also prevent exposed conductor strands at the splice from coming in contact with other circuit portions.

Abstract: A splice case for cables includes a pair of splice case members having outwardly extending flanges positioned in opposed cooperating relationship to define opposite pairs of cooperating flange pairs on opposite sides of the splice case. A pair of elongated fastener strips extend along opposite sides of each pair of cooperating flanges and are clamped together by fastener assemblies to thereby compress the pair of flanges received therebetween.

Abstract: A closure (20) for a cable splice includes two mating covers (23, 24) and two end plate assemblies (30--30). Each of two cables to be spliced is wrapped with convolutions of a sealing tape (32) disposed between two washers (34--34). The washers and sealing tape are received in a circular groove (53) formed by mating semi-circular hub portions (54--54) of two halves (42, 44) of an end plate assembly. The end plate assembly has a truncated conical shape with a smaller diameter portion terminating in a hub (52) which is disposed inside the closure. As a result of this conical shape, fasteners (64--64) inside the closure and aligned with the hub are used to secure together the halves of the end plate assembly and apply a balanced force system to the sealing tape within the hub. Longitudinally extending joints between the covers and a circumferential channel (45) in each end plate assembly are each filled with a sealing gasket. The covers are assembled together to enclose the end plate assemblies.

Abstract: A unitary cable closure is disclosed, for enclosing a communications cable suspended from a support strand. The closure includes a tubular housing having a pair of mating edges separated by an access slot, the edges being manually fastened together in mating engagement after passing the cable through the slot. The closure further includes a rib integrally formed in the wall of the tubular housing. The closure also includes a termination port in the side of the tubular housing. The terminal port includes a rectangular frame and lid. The closure also includes a metal hanger bracket having a lower, horizontal portion fastened to the inside upper surface of the tubular housing at the rib and a vertical portion projecting upwardly through the upper surface of the rib of the tubular housing, for fastening to the support strand.