2353results about "Cable terminations" patented technology

Methods and apparatus are provided for obtaining a secure mechanical connection and a pressure-tight seal in the overlapping area of two telescoping tubular bodies. The two bodies, including the overlapping area, are radially expanded to increase the inside diameter of the bodies. The expansion forces an annular seal in the overlapping area into a pressure-sealing engagement between the bodies. A string of pipe assembled from joints secured to each other by telescoping, threadedly engaged expanded pin and box connections may be radially expanded into a surrounding well bore to provide a cased well having an internal diameter greater than the original internal diameter of the pipe string. The seal in the connection comprises an annular elastomeric seal ring and an annular Teflon spacer ring carried in a specially dimensioned groove formed in either the box or the pin, or both members of the connection. Radial expansion of the connection causes axial contraction of the groove, which acts with the spacer ring to expand the seal ring radially to seal the annular space created between the expanded pin and box.

A broadband access transmission network integrating the functions of electric power network, communication network, TV network and Internet relates to network transmission. It includes a broadband transmission network of 10 KV power distribution network and a broadband transmission network of low-voltage power distribution network. These two transmission networks are connected via distribution transformers and optical fiber connectors. The broadband transmission network of 10 KV power distribution network is composed of optical compound power lines, wires, transformer substations, machine rooms, taps, insulating jackets, insulating waterproofing outer jackets and optical fiber connectors. The broadband transmission network of low-voltage power distribution network is composed of optical compound power lines, coaxial cable compound power lines, taps, insulating jackets, optical access points, distributors, modems and two-way amplifiers. The invention can perform high-speed broadband communication and power transmission on the same compound wires. It utilizes the existing power network sufficiently and prevents the cost of rebuilding the communication network, cable TV network and Internet, and can simultaneously perform building, operating, maintaining and managing of these networks.

A differential signal transmission cable structure for transmitting differential signals having GHz frequency band in the present invention is provided with a differential signal transmission pair cable 30 connecting a driver circuit 23a and a receiver circuit 23b, for transmitting differential signals having GHz frequency band, and a power supply ground transmission pair cable 31 connecting ground and a first power supply 26a connected to the driver circuit and ground and a second power supply 26b connected to the receiver circuit. Further characteristic impedance of the differential signal transmission pair cable is matched to that of the driver circuit and the receiver circuit, thereby enabling TEM waves of differential signals having GHz frequency band transmission mode to be maintained when the differential signals are transmitted.

A waferized connector connects to two twinax cables. The connector includes a molded lead frame, ground sleeve, twinax cable, and overmolded strain relief. The lead frame is molded to retain a lead frame containing both differential signal pins and ground pins. Termination sections are provided at the rear of the lead frame to terminate each of the signal wires of the cables to respective signal lands. The ground sleeve has two general H-shape structures connected together by a center cross-support member. Each of the H-shaped structures having curved legs, each of which fits over the signal wires of one of the twinax cables. The wings of the ground sleeve are terminated to the ground lands of the lead frame and the drain wire of the cable is terminated to the ground sleeve to terminate the drain wire to a ground reference. The ground sleeve controls the impedance in the termination area of the cables, where the twinax foil is removed to expose the wires for termination to the lands. The ground sleeve also shields the cables to reduce crosstalk between themselves and adjacent wafers when arranged in a connector housing. A conductive slab member is formed over the sleeve to provide a capacitive coupling with the conductive foil of the signal cable.

An apparatus and method for sealing pipes or underground structures is provided. In one embodiment, the end of a pipe is sealed by the use of a pipe liner and a sealing member. The sealing member may be a hydrophilic material, a hydrophobic material, a compressible material, or a paste. The sealing member is held in place by a mechanical fastener and a liner is installed adjacent the sealing member and against the wall of the pipe or other structure to be sealed. In another embodiment, a manhole is sealed by the use of a sealing member, a mechanical fastener, and a manhole liner.

A device and method for sealing a first cylinder in a fixed position inside a second concentric cylinder. The inner cylinder has an annular depression in its wall at the point of sealant placement, which causes the wall of the inner cylinder to intrude inwardly. The depression is filled with a partially compressible fluid and is covered over by a malleable / ductile sleeve. The inner cylinder is placed within the outer cylinder with the covered annular depression positioned at the desired sealing point. A cylindrical displacement device is directed through the inside of the inner cylinder where it encounters the intrusion of the annular depression. The displacement device is forced past the annular intrusion and pushes the wall outward. The partially compressible fluid is forced to expand outward under the malleable / ductile cover in a manner that intrudes into the annular space between the inner cylinder and the outer cylinder and into contact with the outer cylinder. The partially compressible fluid has a residual energy sufficient to maintain the sealing element in contact with the outer cylinder.

A cable bypass assembly is disclosed for use in providing a high speed transmission line for connecting a board mounted connector of an electronic device to a chip on the device board. The bypass cable assembly has a structure that permits it, where it is terminated to the board mounted connector and the chip member, or closely proximate thereto to replicate closely the geometry of the cable. The connector terminals are arranged in alignment with the cable signal conductors and shield extensions are provided so that shielding can be provided up to and over the termination between the cable signal conductors and the board connector terminal tails. Likewise, a similar termination structure is provided at the opposite end of the cable where a pair of terminals are supported by a second connector body and enclosed in a shield collar. The shield collar has an extension that engages the second end of the cable.

The invention provides a method for moisture sealing the interface between a nut on the leading end of a male F-Type connector and the threaded tubular shaft of the female F connector. The male connector is attached to a coaxial cable and the female is mounted to an outdoor device such as a cable TV splitter, grounding device, satellite dish, or distribution device, amplifier or group. The sealing device includes a compressible portion comprising an elastically compressible member having a cylindrical bore and a conical outer surface. An annular compression ring overlies a portion of the conical outer surface of the compressible portion. The compressible portion is compressed radially inwardly against the shaft of the female F-Type connector as the leading edge of the male F nut is screwed onto the female threaded shaft of the female F-Type connector, providing a pressurized moisture ingress barrier. The compressible portion may have internal 3 / 8-32 threads to mate with threads on the shaft for a more secure seal.

An EMI shielding spacer gasket assembly for interposition under a predetermined compressive load within an electronics enclosure between a first surface and an oppositely-disposed second surface of the enclosure. The assembly includes a frame member and an electrically conductive, elastomeric member extending along at least a portion of the perimeter of the frame member as retained on a corresponding peripheral edge surface thereof. The elastomeric member has an outboard side which is compressible axially under the compressive load for providing an electrically conductive pathway between the surfaces of the enclosure. In an uncompressed orientation, the outboard side of the elastomeric member exhibits elongate upper and lower bearing portions which are disposed at a spaced-apart radial distance from the frame member to define a corresponding bending moment arm. Each of the bearing portions is angularly deflectable relative to the moment arm to effect the compression of the elastomeric member under a relatively low compressive load.

A conductive sleeve includes a central portion with a front, a rear, and sides; at least one flange mated with at the sides of the central portion; and capacitive section that extends from a portion of the central portion at the rear of the central portion. The central portion is adapted to be placed over an end of a cable and extend over at least one conductor of the cable. The at least one flange is adapted to connect with a mating conductor. The capacitive section has a width smaller than a width of the central portion and is adapted to be placed immediately adjacent to an insulator of the cable and another conductor of the cable to form substantially a capacitive shorting circuit.

A bridge plug having a segmented backup shoe, and at least one split cone extrusion limiter, the extrusion limiter comprising a two part conical retainer positioned between packer elements and the segmented backup shoe to block packer element extrusion though spaces between backup shoe segments. In one embodiment, two split cone extrusion limiters are used together and positioned so that each split cone extrusion limiter covers gaps in the other extrusion limiter and together the two split cone extrusion limiters block packer element extrusion though gaps between backup shoe segments regardless of their orientation relative to the segmented backup shoe. In one embodiment, a solid retaining ring is positioned between a split retaining cone extrusion limiter and a packer element and resists extrusion of packer elements into spaces in the split cone extrusion limiter or limiters.

Loadbreak connectors which are modified to reduce the probability of flashover upon disassembly operation of a loadbreak bushing insert from a power cable elbow connector. The loadbreak bushing insert and power cable elbow connector are mated with an interference fit between an elbow cuff and a transition shoulder portion of the loadbreak bushing insert. The bushing insert is provided with vents to vent a cavity formed between the elbow cuff and the transition shoulder portion of the bushing insert with ambient air to avoid a decrease in pressure within the connection region and avoid a decrease in the dielectric strength of the air therein thus preventing flashover. Preferably, the vents are provided on an elbow seating indicator band formed of a bright contrasting color on the bushing insert which, in addition to venting the cavity, serves to indicate whether the loadbreak connector is improperly assembled.

A method and apparatus suitable for forming hermetic electrical feedthroughs in a ceramic sheet having a thickness of ≦40 mils. More particularly, the method yields an apparatus including a hermetic electrical feedthrough which is both biocompatible and electrochemically stable and suitable for implantation in a patient's body. The method involves: (a) providing an unfired, ceramic sheet having a thickness of ≦40 mils and preferably comprising ≧99% aluminum oxide; (b) forming multiple blind holes in said sheet; (c) inserting solid wires, preferably of platinum, in said holes; (d) firing the assembly of sheet and wires to a temperature sufficient to sinter the sheet material but insufficient to melt the wires; and (e) removing sufficient material from the sheet lower surface so that the lower ends of said wires are flush with the finished sheet lower surface.

A bridge plug having a segmented backup shoe, and at least one split cone extrusion limiter, the extrusion limiter comprising a two part conical retainer positioned between packer elements and the segmented backup shoe to block packer element extrusion though spaces between backup shoe segments. In one embodiment, two split cone extrusion limiters are used together and positioned so that each split cone extrusion limiter covers gaps in the other extrusion limiter and together the two split cone extrusion limiters block packer element extrusion though gaps between backup shoe segments regardless of their orientation relative to the segmented backup shoe. In one embodiment, a solid retaining ring is positioned between a split retaining cone extrusion limiter and a packer element and resists extrusion of packer elements into spaces in the split cone extrusion limiter or limiters.

A cable assembly is provided that includes a wire bundle having individual wires, and first and second connectors provided on first and second ends of said wire bundle. The first and second connectors include first and second circuit boards, respectively. The first and second ends of the wires are terminated on the first and second circuit boards in accordance with different first and second wire management configurations, respectively.

A method and apparatus for coupling together the ends of two steel pipe sections, each of which contains a permeable inner liner, in which not only are the pipe ends held in abutting engagement, but gas contained within the liner of one pipe section is effectively channeled into the liner of the other pipe section.

A busbar assembly for electrically connecting a plurality of conductors includes a housing defining an interior cavity and first and second ports. The first and second ports each include a conductor passage and communicate with the interior cavity. The conductor passages are each adapted to receive a conductor therethrough. An electrically conductive busbar conductor member is disposed in the interior cavity. At least one holding mechanism is provided to selectively secure each of the conductors to the busbar conductor member for electrical contact therewith. Sealant is disposed in the conductor passages of each of the first and second ports. The sealant is adapted for insertion of the conductors therethrough such that the sealant provides a seal about the inserted conductors. The sealant may be a gel.

A tube-shaped shielding member is configured to enclose a plurality of wires collectively. The tube-shaped shielding member includes: a main shield portion made of a metal pipe; and a sub-shield portion formed shorter than the main shield portion and configured to be deformable, to thereby protect the wires from objects such as bounced stones.

A gasketed pipe joint including a dual-functional, composite gasket, which in addition to forming a seal between a pipe bell and a spigot provides a molding surface for forming a bent retainer in the hub of the pipe or fitting. The dual-functional composite gasket comprises a first axially disposed portion formed of a non-elastomeric, substantially rigid, substantially non-resilient plastic material and has a first leading edge and a first trailing edge, and a second axially disposed portion, adjacent the first axially disposed portion, formed of an elastomeric material. Preferably, the gasket comprises a major portion of the non-elastomeric, substantially rigid, substantially non-resilient plastic and a minor portion of the elastomeric material.

An electric submersible pump is provided having a pothead connector for use to connect a downhole cable to an electric motor of the submersible pump. The pothead connector has a housing having an upper and a lower end. The downhole cable has electrical conductors which are separately covered by insulation layers. The downhole cable extends through the upper end and into the housing, and then is electrically connected to the electric motor through the lower end of the housing. Two insulating blocks are provided in the lower end of the housing for separating electrical conductors in alignment for mating with a connector mounted to the electric motor. A conductor pin is secured to the insulating block and to each of the conductors. An elastic sealing ring is disposed within the housing, intermediately between the two insulating blocks. An epoxy layer are disposed within the upper end of the housing.

A composite sleeve seal for sealing a conduit connection including a body portion having collar sections spaced apart from one another to define gaps therebetween, and being interconnected to one another by link segments spanning the gaps. A seal portion interposes the collar sections in the gaps and surrounds the link segments to positively interlock the seal portion with the body portion to form the composite sleeve seal as one integral component.

Conventional foamable cavity sealing articles are susceptible to sagging when expanded in a vertical orientation with the foaming material facing downwards, because of gravitational drag on the molten material during expansion. The problem is particularly pronounced in foaming materials formulated to have high expansion ratios and low melt viscosities. A solution to the problem is presented in the form of a cavity sealing article having a planar holder and a foamable sealer, the foamable sealer circumscribing the edge of the support member. This construction creates a gripping effect which prevents sagging of the sealing member during expansion.

A flame resistant gasket for interposition between the interface surfaces of a pair of mating pipe flanges. The gasket includes a metal retainer member having generally planar first and second surfaces with at least one aperture formed therethrough which is configured for generally coaxial registration with a fluid passageway defined through the pipe flanges. At least one generally annular, flame resistant outer seal member is supported on the retainer member as disposed coaxially with the aperture thereof a spaced-apart, radially outward distance therefrom. The outer seal member has oppositely-disposed first and second outer radial sealing surfaces for abutting contact with a corresponding one of the interfaces surfaces, and is compressible axially between the interface surfaces for effecting a first fluid-tight seal about the fluid passageway. At least one generally annular, elastomeric inner seal member optionally is attached to the retainer member as disposed coaxially with the aperture thereof radially inwardly of the outer seal member. The inner seal member has oppositely-disposed first and second inner radial sealing surfaces for abutting contact with a corresponding one of the interfaces surfaces, and is compressible axially between the interface surfaces for effecting a second fluid-tight seal about the fluid passageway.

Loadbreak connectors which are modified to reduce the probability of flashover upon disassembly operation of a loadbreak bushing insert from a power cable elbow connector. The loadbreak bushing insert and power cable elbow connector are mated with an interference fit between an elbow cuff and a transition shoulder portion of the loadbreak bushing insert. The bushing insert is provided with vents to vent a cavity formed between the elbow cuff and the transition shoulder portion of the bushing insert with ambient air to avoid a decrease in pressure within the connection region and avoid a decrease in the dielectric strength of the air therein thus preventing flashover. Preferably, the vents are provided on an elbow seating indicator band formed of a bright contrasting color on the bushing insert which, in addition to venting the cavity, serves to indicate whether the loadbreak connector is improperly assembled.

A high speed cable to carry signals according to the High-Definition Multimedia Interface and Universal Serial Bus 3.0 standards is disclosed. The cable includes a raw cable, having a conductive braid, a ground wire, signal lines; and two terminating assemblies at each end of the raw cable. The conductive braid is coupled to the ground wire in each of the terminating assemblies through a respective inductor to reduce the ground resistance of the cable, thus permitting construction of a thinner, lighter, and more flexible cable.

A conduit system for laying cables along the floor of a passenger cabin of an aircraft includes longitudinal and transverse cable guide elements respectively forming cable channels, and cable branch junctions at intersections of the longitudinal and transverse guide elements. Each guide element includes a lower part secured to the cabin floor, and an upper part secured (e.g. snap fitted) onto the lower part to cover the cable channel. The cable branch junction includes a lower section secured to the floor and covered by an upper section, and allows the cables to continue straight through the junction or to be deflected by 90° or by 180°. With this arrangement, a greater number and greater diameter of cables can be laid out with a minimal installation effort. The components of the system are easily adaptable to any required installation layout, while providing a continuous covered protected enclosure for the cables.

A gasket system for sealed interfaces utilizes a carrier ring having inner and outer compression stops to account for and control flange rotation effects in order to achieve a uniform and constant gasket seating stress across the sealing region. The inner compression stop provides a fixed fulcrum for flange rotation. The inner and outer compression stops have different heights, dependent upon the characteristic flange rotation, that allow the orientation of the sealing material to be angularly matched to the flange side profile and that allow the sealing material to be fully captured within the sealing region upon full compression, minimizing creep relaxation. A visual compression indicator on the circumference of the carrier ring permits assembly of the interface without the use of specialized or calibrated tools.

An improved keeper for positioning ring seals is provided. The keeper includes a substantially planar sheet defining upper and lower surfaces. Projecting through the planar sheet are one or more holes configured for affixing corresponding one or more ring seals. The keeper further includes one or more nodes which extend outwardly from the planar sheet beyond the dimensions of the mating surfaces between which a sealed joint is obtained. The one or more nodes identify the position and number of holes constructed for receiving corresponding ring seals.