Abstract: To provide a vacuum pump which separates and constructs an inlet port flange and a casing (outer cylinder) as two components to reduce weight while retaining required strength and which is consequently capable of reducing manufacturing cost. In a vacuum pump, an inlet port flange and a casing (outer cylinder) are separated from each other and constructed as different members. The inlet port flange uses stainless steel as a material thereof and the casing (outer cylinder) use aluminum as a material thereof. The components are fastened to each other by bolts and sealed by an O-ring in order to maintain a vacuum property during assembly of the vacuum pump. Accordingly, a weight of the vacuum pump can be reduced while maintaining strength of the inlet port flange.

Abstract: A grommet for an electrical cable, comprising a grommet extending in a longitudinal direction from a first end face to a second end face and having a through passage, the through passage being enclosed by an inner peripheral surface of the grommet, and at least two longitudinally spaced inwardly facing sealing lips disposed on the inner peripheral surface of the grommet, characterized in that the grommet has at least two longitudinally juxtaposed sealing regions spaced apart by a circumferential separation region, that a first sealing region of the sealing regions faces the first end face and a second sealing region of the sealing regions faces the second end face, and that the separation region has a smaller wall thickness than the sealing regions.

Abstract: A cable splice assembly includes a tubing encapsulated cable, an electric submersible downhole cable, where the tubing encapsulated cable and the electric submersible downhole cable are tape-spliced through a pair of respective contacts, and a thermoplastic insulator to seal the tubing encapsulated cable. A shell contains the tape-spliced tubing encapsulated cable and the electric submersible downhole cable and multiple layers of sealant tape are wrapped around at least the tubing encapsulated cable and the thermoplastic insulator inside the shell, where a number of layers of the sealant tape is selected to create a pressure blocking seal inside the shell.

Abstract: The present invention provides an electrolyte measuring device that makes it possible to detect failure in the device with a high degree of accuracy. The electrolyte measuring device has: an ion-selective electrode to which an ion solution including ions is supplied; a reference electrode; a measurement section to measure a potential difference between the ion-selective electrode and the reference electrode; and a current measurement section to measure an electric current flowing in the reference electrode.

Abstract: An electrical connection box can include a housing and a lower cover that closes a lower part of the housing in which the housing includes an electric wire bundle holder whose lower side open so as to be able to allow insertion of a bonder cap of an electric wire bundle in a state where the electric wire bundle is covered with the bonder cap. The lower cover includes a deep bottom part having a drainage hole. A shallow bottom part can be located above the deep bottom part below the electric wire bundle holder, with the shallow bottom part being formed to include an inclined surface inclined downward toward the deep bottom part, and a state where the bonder cap is inserted into the electric wire bundle holder is maintained on the inclined surface of the shallow bottom part on the lower cover.

Abstract: A cable connector assembly includes a circuit board, a plurality of grounding elements and a plurality of cables. Rear ends of an upper surface and a lower surface of the circuit board are equipped with a plurality of contact pads and a plurality of grounding pads. The plurality of grounding elements are soldered to the plurality of the grounding pads. Two sides of each grounding element have two clamping portions. Each cable includes an inner conductor, an inner insulating layer, a shielding layer and an outer insulating layer arranged in an inside-to-outside direction. The inner conductors of the plurality of the cables are electrically connected with the plurality of the contact pads, the shielding layer of each cable is mounted in one grounding element. The shielding layer of each cable is clamped between the two clamping portions of the one grounding element.

Abstract: A seal structure includes a container, a sealant applied in liquid form that cures to a gel, and a cap that applies pressure to the gel. The container surrounds at least one opening in an assembly for the passage of elongated members such as wires. The container defines a chamber that is in communication with the opening and surrounds the wires passing through the opening. A closure spans the opening and is in contact with an inner end of the container. The chamber and the at least opening are partially filled with a predetermined quantity of sealant in liquid form, which cures into a viscous gel. The cap is configured to engage with the container and includes a platform that is positioned within the container and in contact with the gel sealant. In this arrangement, the cap applies positive pressure to the gel sealant.

Abstract: Cable connectors for connecting two multicore cables are provided including a clamping sleeve, having a ceramic insulator with openings on each side of the sleeve, for accommodating core conductors. The clamping sleeve includes contact inserts passing through the clamping sleeve. Clamping elements are provided to clamp the core conductors to the contact inserts to electrically connect the multicore cables. The cable connector has a heat shrink tube that surrounds the clamping sleeve and the cables. Furthermore, cable termination including a clamping sleeve with a ceramic insulator with openings for core conductors is provided. Contact inserts are situated behind the openings to clamp the core conductors on the contact inserts establishing mechanical fixing of the core conductors on the clamping sleeve. The cable termination includes a heat shrink tube as according to the first aspect.

Abstract: In a waterproof structure for a connector, in order to prevent that water is infiltrated into openings of cavities accommodating terminals, a pair of housings include resin annular members which protrude in a fitting direction to surround the openings. One annular member has a protrusion part which is formed on a way between a tip and a root thereof over an entire circumference. The protrusion part is formed to have a top part which presses an inner circumferential surface or an outer circumferential surface of the counterpart annular member at a time of fitting the pair of housings.

Abstract: Disclosed are systems, apparatus and related methods for making weather, fire, or water-proofed wire-to-wire electrical connections.

Abstract: A hollow cover boot formed of an elastomeric material includes, in merging succession, a cable collar, a main section, a transition section, and an interconnection section, wherein the main section has a diameter greater than the cable collar and the interconnection section, and the transition section tapers between the main section and the cable collar.

Abstract: A method for coupling ends of two insulated conductors includes coupling a core of a first insulated conductor to a core of a second insulated conductor. Exposed portions of the cores are located inside a box with an open top. Electrically insulating powder material is placed into the box and a first plunger is inserted through the open top of the box to compact the powder material. Additional electrically insulating powder material is placed into the box and a second plunger is inserted through the open top of the box to compact the powder material into compacted powder material that surrounds the exposed portions of the cores. The compacted powder material is formed into a substantially cylindrical shape. A sleeve is placed over the compacted powder material and coupling the sleeve to the jackets of the insulated conductors.

Abstract: The present invention provides a cable protection device and a cable having the same. The cable protection device is configured for connecting two cables and includes a first protective casing and a second protective casing assembled with the first protective casing. The first protective casing has a hollow body for allowing one of the two cables to be disposed through. The second protective casing has a hollow body for allowing the other of the two cables to be disposed through. The interiors of the hollow body of the first protective casing and the hollow body of the second protective casing form a protective space respectively for covering a connecting portion of the two cables. Thus, the present invention also generates waterproof and dustproof effects.

Abstract: A molded portable single-member housing assembly for securing and protecting elongated elements having an aesthetically pleasing design is provided. The molded portable single-member housing assembly having a lid and a depressed housing portion connected via a live hinge. The lid is engaged by a user via an aperture which permits the user to physically manipulate the lid rotatably about a hinge axis. The elongated element is store or housed within the base portion and permitted access out of the housing via at least two indentions. Further, the molded portable single-member housing assembly has at least four legs.

Abstract: A wiring harness conduit shield assembly that provides shield continuity for a transition from one or more main wire bundle conduits into two or more wire bundle conduit branches. The assembly includes a pre-branch shield sock disposed over at least one main wire bundle conduit and two or more post-branch shield socks, one each disposed around each of the wire bundle conduit branches. An interconnect ring is coaxially disposed around the main wire bundle conduit at the branching point, and the post-branch shield socks have a tail portion that is disposed over the outer surface of the interconnect ring. The pre-branch shield sock is likewise disposed over the interconnect ring, overlapping the tail portions, and a retaining ring is tightly placed over both to clamp them onto the interconnect ring in metal-to-metal contact with one another so as to create shield continuity between the pre-branch shield sock and the post-branch shield socks.

Abstract: A device for releasably positioning a cable on a support surface comprises a first housing component and a second housing component. The first housing component is releasably engaged with the second housing component. At least one channel is defined between the first and second housing components for releasably receiving and positioning a cable, wherein the at least one channel has an inlet and an outlet that can have the same dimensions.

Abstract: To improve water discharging performance of a wire harness, and to protect a water discharging structure of the wire harness, an electric wire group is exposed from an outer cover material at a lower end portion (B) where the wire harness (10) is arranged, one side of the exposed portion is surrounded by a first waterproof material, the other side of the exposed portion is surrounded by a second waterproof material, the first waterproof material (I) forms an opening (27) at the lower end portion (B), the end of the second waterproof material is inserted into the first waterproof material (I) from the opening (27) so as to overlap on the first waterproof material, and a water discharging gap (28) is formed at a wrapped portion (C).

Abstract: An enclosure of an outdoor apparatus includes a first case, a second case and a gasket ring sealed between the first case and the second case. The first case includes a first cover and a flange portion extending from the first cover outwardly. The first case defines a first open surrounded by the flange portion. The flange portion defines a latching groove towards the first open. The second case includes a second cover and a stopper portion extending from the second cover outwardly. The stopper portion is received in the first open and matches with the flange portion. The cover defines a second open surrounded by the stopper portion and opposite to the first open. The stopper portion includes a latch portion protruded outwardly from the stopper portion to engage with the latching groove.

Abstract: The present invention provides a cable protection device and a cable having the same. The cable protection device is configured for connecting two cables and includes a first protective casing and a second protective casing assembled with the first protective casing. The first protective casing has a hollow body for allowing one of the two cables to be disposed through. The second protective casing has a hollow body for allowing the other of the two cables to be disposed through. The interiors of the hollow body of the first protective casing and the hollow body of the second protective casing form a protective space respectively for covering a connecting portion of the two cables. Thus, the present invention also generates waterproof and dustproof effects.

Abstract: A splice housing is configured to slide over and engage with a metallic connector that couples together cable conductors in an electrical distribution system. The splice housing has a first end arranged to engage a first cable, a second end arranged to engage a second cable and a central portion set between the first and second ends that engages the metallic connector. A first support core holds the first end in an expanded state, while a second support core holds the second end in an expanded state. The first and the second ends are molded so that they have relaxed internal diameters that are smaller than a relaxed internal diameter of the central portion.

Abstract: The present invention relates to a splice restraint for use with sleeves that attach to joints. The splice restraint includes a first securing member constructed and arranged to be received in a groove of a first sleeve that is installable on a first leg of a joint, a second securing member constructed and arranged to be received in a groove of a second sleeve that is installable on a second leg of the joint, and a strap connecting the first securing member to the second securing member. The strap having a length determined by the distance between the groove on the first sleeve and the groove on the second sleeve when the first and second sleeves are properly installed on the joint. The splice restraint provides a visual indication that the sleeves are properly installed on the joint, as well ensures that sleeves will not be displaced after the lineman leaves the site.

Abstract: A cable harness, more specifically a high-voltage cable harness for a motor vehicle, is provided. The cable harness has at least one electric cable, which includes an electric line and a shield that surrounds the line, as well as a device for leading-through and for connecting the shield of the cable. The device includes a lead-through element, through which a cable end is guided, as well as an under-sleeve. The under-sleeve includes a shaft and a head that is widened compared to the shaft. The under-sleeve with the shaft is inserted between the electric line and the shield as well as being retained by use of the head at the lead-through element.

Abstract: There is provided splice trays and splice assemblies that provide convenient access to optical fiber slack within a relatively small area or volume. Some splice trays are adapted for use with microstructured optical fibers to further reduce the size of the splice tray or splice assembly. Some splice trays provide fiber routing devices on the cover of the splice tray. The fiber routing device may be positioned on an inside surface of the cover and/or on an outside surface of the cover. The splice trays and/or splice assemblies may be used with or as fiber drop terminals used within multiple dwelling units.

Abstract: A sealant-filled enclosure assembly for environmentally protecting a connection between cables includes a housing and a mass of sealant. The housing is selectively configurable between an open position to receive the connection and a closed position wherein the housing defines an enclosure cavity to contain the connection. The housing includes at least one sealant cavity and a port control system. The port control system includes a gate member that is selectively deflectable from a closed position, wherein the gate member blocks a cable port, to an open position, wherein the cable port is open to permit a cable to extend into the enclosure cavity through the cable port. The gate member is rigid or semi-rigid. The mass of sealant is disposed in the at least one sealant cavity.

Abstract: In an aspect of the subject invention, a conduit body assembly is provided. The conduit body assembly has a conduit body having a closed lower end, a side wall surrounding the lower end, the side wall including a planar perimetrical rim defining an open upper end. A cover is positionable over the perimetrical rim of the side wall for enclosing the open upper end. A sealing member is formed onto the cover for engagement against the planar rim of the side wall for effecting a seal therebetween.

Abstract: A protective enclosure apparatus detachably securable with respect to a utility pole base having utility apparatus such as wires, cables and support structure extending therefrom. The enclosure includes a base with an access opening attachable directly to the utility pole base with a support frame securable thereto and extending outwardly therefrom. A housing is secured to the support frame to define a containment chamber therewithin for preventing access to the utility apparatus therein. The base member defines a plurality of mounting slots normally oriented extending radially and in communication with the access opening to facilitate mounting of the base with respect to various configurations of utility pole bases having four post mounting systems.

Abstract: The shaft includes two electrically conducting connecting pieces (2, 3), which can be connected to different electric potentials, and also an insulating tube (4), which can be subjected to torsional loading. The two connecting pieces (2, 3) are respectively fastened to one of the two ends of the insulating tube (4). In order that the shaft can also transmit great torques, the following means are provided for fastening at least one of the two connecting pieces (2, 3): An adhesive joint (5), which is formed by a cone (6) formed into one end of the insulating tube (4) and made to run from the circumferential surface (7) to the inner surface (8) of the insulating tube (4) and also by a mating cone (9) formed into the at least one connecting piece (2, 3), and by a gap (10) formed by the cone (6) and mating cone (9) and filled with adhesive.

Abstract: A vacuum housing includes a cylindrical section, a flange, and a ring arranged concentrically with the cylindrical section and forming part of the flange, with the ring being formed of a harder material than the remaining of the housing, and having an annular knife edge extending in an axial direction and in a direction away from the cylindrical section, with the knife edge forming part of the flange surface.

Abstract: A channel shaped extruded duct unit cooperates with an identical duct unit to form a closed duct therewith. The duct unit has at least one integral longitudinally extending attachment formation configured to hold captive relative to the duct unit a plurality of complementary clamp elements adapted to operatively encircle a composite duct and hold the two constituent duct units in their duct defining relationship. The clamp elements have a pair of cooperating integral catch formations whereby a pair of clamp elements can be clipped together to form an operatively substantially endless clamp encircling a closed duct and an integral outwardly directed circumferential terminal flange at each axial end thereof. Generally, semicircular clip units are provided to connect the terminal flanges associated with the ends of collinear duct assemblies.

Abstract: A protective housing for electrical connections has a base and a selectively removable cover defining a chamber between the cover and the base. The cover includes a plurality of openings, which provide for passage of electrical cords and permit liquid to drain from the chamber. Electrical connections rest upon a raised area of the base that serves as a floor for the chamber. The floor is sloped from a raised central area towards the edges of the floor to drain liquid out of the chamber. The cover and the base form an interference fit and a flush seam located below the platform. The openings are generally located at the seam so that they may serve as the passageway through which water and debris exit the chamber. The housing is made of material that floats in liquid to maximize protection of the electrical components.

Abstract: An electrical cable coupler shell has first and second halves with open end portions configured for telescopic movement along an axis. A first clamp structure is located on the first shell half. A second clamp structure is located on the second shell half. A third clamp structure is receivable in screw threaded engagement with the first clamp structure for movement axially and rotationally relative to the first shell half. The third clamp structure is configured to engage the second clamp structure so as to rotate relative to the second shell half, and simultaneously to impart axial movement to the second shell half, upon moving axially and rotationally in screw threaded engagement with the first clamp structure.

Abstract: An insulated cover for electrical connectors which includes a transparent housing having a top section and a bottom section, a pair of opposing end walls and a plurality of flexible fingers extending inwardly from the periphery of an aperture in each end wall, which is formed when the top section and bottom section are joined together. The fingers have a plurality of transverse grooves which increase the flexibility of the fingers as they contact the electrical conductors entering the housing. The depth of the grooves increases towards their terminus to increase their flexibility.

Abstract: An enclosure for an electrical connection between two high-voltage cables that includes an electrically nonconductive separator integral with a mounting base for receiving the high-voltage cables. An electrically nonconductive tubular cover extends over the electrical connection and the high-voltage cables and is releasably attached to the base. The separator has at least two resiliently mounted fingers, and the electrically nonconductive cover extends over the fingers to depress and move the fingers into contact with the high-voltage cables, thereby securing the high-voltage cables in the mounting base. The high-voltage cables are extended beyond the mounting base a distance equal to a desired spacing separating the electrical connection between the high-voltage cables and an electrical conductor associated with the mounting base. The tubular cover is transparent so that the electrical connection joining the high-voltage cables can be visually inspected through the cover.

Abstract: A closure arrangement for cable splice assemblies having two hinged cover members. The cover members are independently hingedly secured to a central spine. The spine, in turn, is affixed to a portion of the frame of the splice assembly. In operation, the cover members are opened outwardly to expose virtually all of the outer portion of the internal splice components. In the described embodiment, the cover members are secured to one another by clasp or buckle-type closures that engage complimentary tabs.

Abstract: A service wire splice housing has an upper cap having a cavity therein and a lower aperture communicating with the cavity releasably securable for watertight releasably resealable mating onto a base, the base having a cavity extending between an upper aperture corresponding to the aperture in the cap, when the cap is releasably mated onto the base, and hollow telephone service wire receptacles extending from the base, the telephone service wire receptacles adapted to be watertight when service wires are journalled therethrough so as to extend through the cavity in the base and into the cavity in the cap wherein the service wires may be spliced.

Abstract: A casing, e.g. for a cable splice closure, includes: (a) first and second parts, each of which has a peripheral flange, and (b) a clamping member in the form of a split ring which, in use, is placed around the flanges of the first and second parts and thereby clamps the parts together, at least part of the clamping member being formed as a single flexible piece which may be flexed open to allow the clamping member to be placed around the flanges of the first and second parts.

Abstract: An environmentally sealed cable splice includes (a) a butt cable splice between at least two substantially side-by-side cables, (b) an enclosure sealed around said cables, the enclosure including (i) a first part through which the cable extends, and (ii) a second part which is hollow and together with the first part forms a closed space, the first and second parts having internal and external cross-sections such that one can be slid upon the other so as to give an overlap between the first and second parts, and (c) an inflated sealing member carrying sealing material, the sealing member being within the enclosure and in contact with the cables and the overlap.

Abstract: A splice for two or more electrical wires can be made waterproof by introducing a jelly material into a splice body and splice cover made from an electrically insulating material. The jelly prevents the infiltration of water or moisture into the holes of the closed splice body into which the spliced wires are led. The splice body and cover are formed with a plurality of grooves that correspond to each other such that when the splice cover is closed over the splice body, the grooves form the holes into which the electrical wires are led. The splice cover may be in more than one piece. A conducting material is disposed across the interior of the splice for penetrating the covers on coated electrical wires to effect the splice by creating an electrical contact between the main and branch wires. When the splice cover is closed the waterproof jelly spreads over the outer surfaces of the wires.

Abstract: A protective jacket is formed of two symmetrical half-round shells molded from rigid, transparent plastics and fastened together by hooks thereof and secured to the electric wire of a light string to protect a bulb. Each half-round shell has two opposite pairs of half-round holes for the passing of the electric wire, two partition ribs defining a chamber for holding the bulb, an upright stop plate stopped at one end of the bulb to separate the lead wires, and a longitudinal series of upright stop rods for stopping the bulb against the upright stop plate.

Abstract: A rigid cable clamp for holding cable in a bent condition, the clamp having two rigid members which when assembled make a curved cable passage to hold cable bent. One or both members is electrically conductive and presses against the bared cable shield to provide electrical continuity into the member. A slot is provided in the electrically conductive member for frictionally receiving a metal ground support for the clamp so as to ground the cable shield.

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: A closure for a cable joint having a cable inlet having a cable gripper that can provide strain relief to a cable within the inlet, the cable gripper being adjustable to grip cables of different diameters in such a way that the position of the center line of a gripped cable is substantially independent of cable diameter.

Abstract: A splice is provided which includes two semi-cylindrical splice members joined together for relative pivotal movement into and out of engagement with each other in a closed mode and an open mode, respectively. Each splice member incudes two channels. Respective two channels of each splice member are aligned with each other in the closed mode to form a first cavity and a second cavity. The walls of the first cavity bear against a first length of wire, and the walls of the second cavity bear against a second length of wire which is mechanically and electrically coupled to the first length of wire within the first cavity.

Abstract: A cable sleeve having a longitudinally divided housing that includes a parting plane and a cable introduction plane for cable introduction openings. Embodiments of the cable sleeve include devices such as a mounting plate, a centerable cable interceptor device and receptacles for seal elements, arranged on the cable sleeve. Closure beads are arranged around and along the parting plane of the housing. The closure beads are held by at least one U-shaped closing rail but preferably by two U-shaped closing rails. A plurality of longitudinal beads are wedge-shaped and undercut, whereas a plurality of end face closure beads are trapezoid-shaped.

Abstract: Flame retarded organopolysiloxane gels suitable for sealing and protecting electrical contacts include (i) an organopolysiloxane gel having repeat units of the structure ##STR1## where each R is independently phenyl or C.sub.1 -C.sub.4 alkyl or fluoroalkyl, at least 40% of the R groups being phenyl; and (ii) an additive package mixed with the organopolysiloxane, which is (a) zinc oxide; (b) antimony oxide; (c) a brominated compound having a molecular weight of at least 450 and a bromine content of at least 40 weight %; (d) a chlorinated compound having a molecular weight of at least 300 and a chlorine content of at least 40 weight %; or (e) combinations of the above. The additive package is used in an amount between about 10 and about 60 parts by weight per 100 parts by weight of organopolysiloxane.

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 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: A swivel assembly for eliminating undesirable loops in an electrical or telephone cord has half shells provided in axial alignment and surrounding an inner core. The inner core defines slip rings for electrically engaging complementary cavities in the shell so as to afford electrical connection between the plurality of electrical conductors within the cord.

Abstract: Long flexible members such as hoses, electric cords and cables tend to be springy and elastic. They are not easily coiled and stored. They tend to straighten out when bent into a desired shape. They tend to tangle and interfere with operations. The invention incorporates an elongate wire element running parallel to the long axis of the flexible member. The wire element is encased in the covering of the flexible member. The wire element is a conformable shape-retaining material such as a compliant soft iron or steel. It renders the entire member shape-retaining so that it may be conveniently coiled for storage or positioned for use. An embodiment for retrofitting an existing flexible member provides the wire element encased in a covering which wraps around a flexible member and then seals closed to form a shape retaining sleeve about the member.