Abstract: An electrical feedthrough assembly may include a lower assembly and an upper assembly coupled together. The lower assembly may include an outer body with a lower housing and an upper housing disposed within a bore of the outer body, and a first conductor extending from the lower housing to the upper housing. Additionally, the upper assembly may include an outer body with a pin end, the pin end is inserted into an opening of the lower assembly, a main body connected to the outer body, a second conductor disposed within the main body, a channel in the outer body open to an outside of the outer body and a chamber within the outer body, a piston disposed within the channel and configured to fluidly isolate the chamber from the outside of the outer body, and a dielectric fluid provided within the chamber.

Abstract: Disclosed herein are safety devices that are positioned on the end of a fiberoptic cable, such as those used in surgical procedures, to prevent patients and other objects from the risk of burn from light or heat emitted from the end of the cable when not connected to an optical instrument. The disclosed safety devices can be added to the ends of existing cables and/or can be included at the end of cables during manufacture. In some embodiments, the safety device replaces an existing connector at the end of a cable, and in some embodiments the safety device is added in addition to a connector at the end of the cable. In some embodiments, a slit end cover is included over an open end of an adaptor that is mounted on a distal connector of a fiberoptic cable.

Abstract: A backing plate, a corresponding electrical connector for mating with the backing plate, an electrical header, and an assembly thereof are described herein. The backing plate has an inner portion having a first thickness and an outer portion having a second thickness that is greater than the first thickness. The outer portion surrounds a perimeter of the inner portion and forms a cavity within the backing plate for acceptance of the electrical header. The backing plate also contains a connector attachment portion configured to attach the backing plate to the electrical connector and an intermediate surface attachment portion configured to attach the backing plate to the intermediate surface.

Abstract: An object of the present disclosure is to provide a core electric wire for a multi-core cable that is superior in flex resistance at low temperature, and a multi-core cable employing the same. A core electric wire for a multi-core cable according to an aspect of the present disclosure comprises a conductor obtained by twisting element wires, and an insulating layer covering the conductor, wherein a linear expansion coefficient C of the insulating layer at from 25° C. to ?35° C. is no less than 1×10?5 K?1 and no greater than 2.5×10?4 K?1.

Abstract: A waterproofing device for underwater wire connection comprises: a base, a clamping portion a tank port, a tank neck groove, an inverted tank, a connecting portion for two wires in inverted tank and close to the top of the tank. The two wires are in the inverted tank and close to the top of the tank, and are two wires connected well. The base is fixed on the ground and is configured to fix wires and the inverted tank. A bottom of the clamping portion is fixed on the base, and the clamping portion is configured to clamp the groove; the exposed part of the wire in the tank does not contact with water when the water overflows the tank with the mouth facing down, and the two connected wires can conduct electricity normally; the waterproofing can also be monitored and added into the tank.

Abstract: An apparatus for electrically connecting two downhole components configured to be disposed in a borehole. The apparatus includes two complementing tool connectors which each have a corresponding electrical connector. The tool connectors may mate using a bayonet and slot connection. The slot may be L-shaped or l-shaped. The slot may be configured for straight or rotational engagement of the tool connectors. The electrical connectors may mate using concentric contacts that share the same axis. The electrical connectors are configured to rotate without stressing the contacts during assembly, disassembly, and drilling operations. The electrical connectors may support two or more contacts.

Abstract: An integral, unitary pre-expanded cover assembly unit for covering an electrical connection between first and second electrical cables each having a primary conductor and a neutral conductor includes a cover assembly, a holdout and a holdout support. The cover assembly includes an elastomeric sleeve and a duct. The elastomeric sleeve defines a cable passage to receive the electrical connection and the primary conductors of the first and second cables. The duct overlies the elastomeric sleeve. The duct defines a duct passage configured to receive at least one of the neutral conductors therethrough. The holdout is removably mounted within the cable passage of the elastomeric sleeve. The holdout defines a holdout passage. The holdout maintains the elastomeric sleeve in an expanded state. The holdout support is removably mounted within the holdout passage. The holdout support reinforces the holdout.

Abstract: A hybrid connector includes a connector housing, one or more first connection elements configured to transfer a first type of energy or a fluid, and one or more second connection elements configured to transfer a second type of energy, different from the first type of energy, or the fluid. The first connection elements are rotationally fixed and the second connection elements are configured to rotate around an axis that is substantially perpendicular to a mating axis of the housing.

Abstract: A cover system for covering an electrical connection between first and second electrical cables each having a primary conductor and a neutral conductor, includes a neutral connector and a neutral connector cover. The neutral connector is configured to mechanically and electrically connect the neutral conductors of the first and second electrical cables. The neutral connector cover has a cavity. The neutral connection cover is configured to receive the neutral connector in the cavity to protect the neutral connector.

Abstract: Systems and apparatus are disclosed for an electrical connector for a removable tailgate. An example connector for a vehicle tailgate includes a body, a hyperboloid socket and dielectric oil. The example body defines a chamber and a split line extending from the chamber. The split line facilitates penetration of a hyperboloid pin into the chamber. The example hyperboloid socket is disposed in the chamber and aligned with the split line. The example dielectric oil partially fills the chamber to coat the hyperboloid pin to provide corrosion resistance for the hyperboloid pin.

Abstract: An integral, unitary pre-expanded cover assembly unit for covering an electrical connection between first and second electrical cables each having a primary conductor and a neutral conductor includes a cover assembly, a holdout and a holdout support. The cover assembly includes an elastomeric sleeve and a duct. The elastomeric sleeve defines a cable passage to receive the electrical connection and the primary conductors of the first and second cables. The duct overlies the elastomeric sleeve. The duct defines a duct passage configured to receive at least one of the neutral conductors therethrough. The holdout is removably mounted within the cable passage of the elastomeric sleeve. The holdout defines a holdout passage. The holdout maintains the elastomeric sleeve in an expanded state. The holdout support is removably mounted within the holdout passage. The holdout support reinforces the holdout.

Abstract: A cable termination apparatus for an underwater cable that includes a cable crimp for electrically connecting the underwater cable to a pin; a conductive crimp screen; and an insulating portion molded on the conductive crimp screen and located radially outwardly of the conductive crimp screen.

Abstract: A cartridge includes an outer case, partially filled with electrically insulating gel, and at least one electrically conductive track submerged in the insulating gel. Connection sets including at least one connector half and such a cartridge are also disclosed.

Abstract: A method of downhole operations with a wireline deployed tool that has become stuck downhole. The wireline is selectively detached from the stuck tool, and a tubular is attached to a coupling provided with the tool. The tool is unstuck by applying upward and downward forces to the tool with the tubular. The coupling further provides communication between a line in the tubular and the downhole tool, thereby providing communication between the tool and surface. Thus, after unsticking the tool, wellbore operations can continue with the tool attached onto the tubular.

Abstract: A cable termination apparatus, for an underwater cable with a conductive core and an axially extending annular insulation portion, the apparatus having a cable crimp for electrically connecting the conductive core of the underwater cable to a pin and a conductive crimp screen. The crimp screen is arranged such that when the termination is assembled a portion of the conductive crimp screen extends axially over and is radially outwardly of the annular insulation portion of the cable.

Abstract: A cable termination apparatus for an underwater cable with a conductive core, an axially extending annular insulation portion radially outwardly of the core and an axially extending annular conductive screen layer radially outwardly of the insulation portion. The apparatus having a stress control sleeve, located radially outwardly of the insulation portion and extending partially over the annular conductive screen layer. The stress control sleeve includes an insulating portion and a conductive portion. When the cable termination apparatus is assembled the conductive portion of the stress control sleeve is in contact with an end portion of the screen layer.

Abstract: A connector part for use underwater or in a wet or severe environment is provided. The connector part has a pin projecting axially forwardly from a support and a sliding carriage which is in sealing engagement with the pin. The sliding carriage is movable between an unmated position and a mated position along the pin. A diaphragm is furthermore provided which encloses a volume around the pin. The diaphragm has a first sealing portion that is sealed to the sliding carriage and a second sealing portion that is sealed to a portion of the connector part which is stationary relative to the pin.

Abstract: An underwater electrical connection assembly is provided, where the assembly includes (1) a contact pin including an axially extending conductive core and an axially extending annular insolation portion around the conductive core, (2) a front end portion of the conductive core having an electrical contact surface, (3) a rear end portion of the conductive core having an electrical contact surface, and (4) an intermediate portion of the conductive core extending axially at an intermediate location between the front and rear end portions. In the assembly, the rear end portion of the conductive core of the pin includes a diameter larger than the diameter of the intermediate portion thereof, and the annular insulation portion includes an inner insulating layer around the intermediate portion of the conductive core and an insulating sleeve around the inner insulating layer.

Abstract: Automated tightener for a wet mateable connection assembly includes a first and a second watertight case, the automated tightener bearing a fixing assembly and including a first and a second sliding portion arranged in a parallel lay, connected together by a push/pull actuator substantially orthogonal thereto, each sliding portion being provided with operable engagers.

Abstract: A waterproof socket includes an inner core fixing base disposed between a retention frame and a socket base. Lower insertion holes are coaxial with an output terminal and are formed in the inner core fixing base. An accommodating groove is formed between two lower insertion holes. A waterproof inner core is disposed in the accommodating groove. The waterproof inner core includes a main body movably inserted in the accommodating groove. Two upper seal doors are sealed at upper insertion holes of the retention frame and are disposed on two upper sides of the main body, and two swing rods are symmetrically disposed below the upper seal doors. One end of each of the swing rod is hinged to the main body, and the other end of the swing rod is provided with a lower seal door for sealing the lower insertion holes of the inner core fixing base.

Abstract: The present invention relates to an interconnection system and method for interconnecting hoses (40) for transmitting power, fluids, data, or any combination thereof in a marine environment by means of a leak-tight device (10) in the inlets (230) of which terminal covers (30) for the passage of umbilicals and blind covers (80) for sealing said inlets (230) can be interchanged, such that each of the hoses can be connected and disconnected independently. The inlets are arranged such that the umbilicals are laid according to one and the same direction and orientation.

Abstract: The present invention generally relates to an inline pressure compensator that compensates for volumetric changes within Field-Assembled Cable Termination (FACT) structures when exposed to high pressures and extreme subsea depths by transferring a pressure compensating fluid into the internal cavity of the FACT. The present invention may comprise a flexible internal component and an outer shell-like component. The inner component may comprise two concentric rings of edge-welded bellows that are joined together and wrapped around inner components of the termination or of the inner portion of the outer component. The inner void in the bellows may be filled with pressure-compensating fluid. The pressure compensating fluid diffuses directly into the fluid-filled cavity of the termination assembly. The exterior component may comprise a housing adapted to protect the interior bellows component and provide for seawater to fill the space around the periphery of the bellows arrangement.

Abstract: An apparatus that includes a chemical-injection management system of a sub-sea oil and gas extraction system. The chemical-injection management system may include a flow path having an inlet and an outlet. The chemical-injection management system may also include a pump disposed in the flow path between the inlet and the outlet; wherein the pump is configured to increase the pressure of a fluid flow through the flow path.

Abstract: A three-phase electric power connector (1), comprising a plug (5) and a socket (3), which each comprise respectively a casing (13, 11) and three electrically conductive contacts (9, 7) housed at least in part inside the casing (13, 11) and each corresponding to an electric phase of the electric current transmitted by the connector (1), in which each of the three electrically conductive contacts (9, 7) is surrounded at least in part by an electrically insulating sheath.

Abstract: A non-volatile memory is formed on a substrate. The non-volatile memory includes an isolation structure, a floating gate, and a gate dielectric layer. The isolation structure is disposed in the substrate to define an active area. The floating gate is disposed on the substrate and crosses over the active area. The gate dielectric layer is disposed between the floating gate and the substrate. The floating gate includes a first region and a second region. An energy band of the second region is lower than an energy band of the first region, so that charges stored in the floating gate are away from an overlap region of the floating gate and the gate dielectric layer.

Abstract: A connector has first and second connector units, each unit incorporating an oil-filled chamber housing one or more contact elements to be joined. At least one connector unit has a face seal assembly which seals the forward end of the contact chamber in the unmated condition. The face seal assembly comprises three elements. One element is an annular elastomeric seal situated radially outward. The two other elements are inner seal elements which are pressed together radially to form a substantially disc-like shape. The resulting disc-like shaped seal fills the central, circular end face opening of the outer annular seal. As the connector units are mated, elements of the elastomeric face seal assembly are displaced, one axially, and others both axially and radially, creating an opening between the oil-filled chambers that is sealed from the outside environment.

Abstract: A wet-mateable connector for making a connection underwater comprises a male component 10 having a male pin 14 and a female component 20 having a female socket 24 for receiving the male pin. A fluid chamber 34 containing dielectric fluid and a water ingress treatment module 36 for removing water from the dielectric fluid are provided. The male and female components 10, 20 are arranged to be mechanically coupled together such that the female socket 24 receives the male pin 14, thereby making the connection.

Abstract: A connector has first and second connector units, each unit incorporating an oil-filled chamber housing one or more contact elements to be joined. At least one connector unit has a face seal assembly which seals the forward end of the contact chamber in the unmated condition. The face seal assembly comprises three elements. One element is an annular elastomeric seal situated radially outward. The two other elements are inner seal elements which are pressed together radially to form a substantially disc-like shape. The resulting disc-like shaped seal fills the central, circular end face opening of the outer annular seal. As the connector units are mated, elements of the elastomeric face seal assembly are displaced, one axially, and others both axially and radially, creating an opening between the oil-filled chambers that is sealed from the outside environment.

Abstract: A connector has first and second connector units, each unit incorporating an oil-filled chamber housing one or more contact elements to be joined. At least one connector unit has a face seal assembly which seals the forward end of the contact chamber in the unmated condition. The face seal assembly comprises three elements. One element is an annular elastomeric seal situated radially outward. The two other elements are inner seal elements which are pressed together radially to form a substantially disc-like shape. The resulting disc-like shaped seal fills the central, circular end face opening of the outer annular seal. As the connector units are mated, elements of the elastomeric face seal assembly are displaced, one axially, and others both axially and radially, creating an opening between the oil-filled chambers that is sealed from the outside environment.

Abstract: A method for volume compensation of a fluid-filled first chamber accommodating a first electrical appliance that is electrically connected by a high-voltage electrical connector to a second electrical appliance located in a fluid-filled second chamber. The first chamber is volume compensated to the second chamber via the electrical connector by a volume compensating arrangement integrated in the electrical connector. A high-voltage electrical connector with a volume compensating arrangement and an electrical assembly provided with such a connector.

Abstract: In a method of making an electronic apparatus, electronic devices and a mold are placed in a package such that pads of electronic devices are covered with the mold. An electrical insulator is poured into the package, in which the mold is placed, to fill the package. The mold is removed from the electrical insulator to form a space where the pads are exposed. An electrical conductor is placed in the space such that the pads are electrically connected together through the electrical conductor. The electrical conductor is in the form of a liquid or a solid having both fluidity and deformability.

Abstract: A wet-mateable connector for making a connection underwater comprises a male component 10 having a male pin 14 and a female component 20 having a female socket 24 for receiving the male pin. A fluid chamber 34 containing dielectric fluid and a water ingress treatment module 36 for removing water from the dielectric fluid are provided. The male and female components 10, 20 are arranged to be mechanically coupled together such that the female socket 24 receives the male pin 14, thereby making the connection.

Abstract: A rotary joint connector has a plug having a plug contact module and a mating receptacle having a receptacle contact module designed for mating engagement with the plug contact module when the connector is fully mated. One of the units has front and rear shells which are rotatably coupled together and contain the contact module which is held in the rear shell so that the rear shell and contact module are free to rotate in the front shell. The mating contact arrangement is such that the plug and receptacle contact modules do not have to be rotationally aligned to maintain electrical contact, so that relative rotation of the electrical contacts of the two contact modules about the mating axis as a result of rotation of the rear shell does not degrade the quality of the connected circuits.

Abstract: A submersible connector has releasably mateable plug and receptacle units. The plug unit has at least one electrical pin while the receptacle unit has at least one electrical socket module which receives a forward portion of the electrical pin when the units are mated. The pin is surrounded by semi-conductive seals and a conductive housing, while the socket module has a semi-conductive outer layer, and front seals of semi-conductive material on the pin and socket modules are in sealing engagement in the mated condition, isolating the pins from sea water exposure and forming a ground plane continuation at least from receptacle to plug in the mated condition and providing shielding from phase to phase interaction in a multiple pin and socket connector.

Abstract: A connector arrangement in a submersible electrical assembly including an electric equipment or electrical power consumer housed in an enclosure filled with conductive fluid. Power is supplied to the power consumer in a connecting area defined through a dielectric containment located inside the enclosure, and to a penetrator comprising power cable termination components enclosed in a penetrator housing extending from a rear end to a forward end of the penetrator. The rear end is arranged to seal about a power cable receivable in the housing from the rear end. The forward end exposes a connector arranged for electrically connecting the power consumer to the penetrator. The penetrator housing in the forward end is extended beyond the connector through a housing section projecting into the power consumer enclosure and terminated in a forward end by an end wall. The end wall has a passage sealable about a power consumer conductor mateable with the connector of the penetrator in a connecting mode.

Abstract: A connector mating system that can enable the coupling and decoupling of electrical or optical communications channels, while in a deep, sub-oceanic, sea-floor environments, during which time the contacting interfaces of the said channels remain fully protected from the destructive effects of the said environment. The system features a Wet-Mate Connector (WMC) that provides a means for electrical, optical and hybrid inter-connection within an extremely hostile environments.

Abstract: A submersible connector has releasably mateable plug and receptacle units. The plug unit has at least one electrical pin while the receptacle unit has at least one electrical socket module which receives a forward portion of the electrical pin when the units are mated. The pin is surrounded by semi-conductive seals and a conductive housing, while the socket module has a semi-conductive outer layer, and front seals of semi-conductive material on the pin and socket modules are in sealing engagement in the mated condition, isolating the pins from sea water exposure and forming a ground plane continuation at least from receptacle to plug in the mated condition and providing shielding from phase to phase interaction in a multiple pin and socket connector.

Abstract: The present invention is embodied in a submersible electrical cable connector having a cable-side connector assembly and a receptacle-side connector assembly. In a preferred embodiment, the cable-side connector assembly includes a generally circular printed circuit board having individual pin assemblies, each pin assembly having its own spring-loaded mechanism. The pin assemblies provide for an electrical connection between the cable-side connector assembly and the receptacle-side connector assembly. The printed circuit board also includes an oil valve that allows oil to flow between the cable-side connector assembly and the receptacle-side connector assembly when the two connector assemblies are coupled together. The cable-side connector assembly additionally includes a cap having a bleed valve that allows a user to remove air trapped within the submersible electrical cable connector when it is filled with oil.

Abstract: An electrical connector is provided for use in establishing watertight connections, such as for subsea applications. The connector comprises a receptacle component (100) that includes a fluted, insulated male contact pin (52) with an isolation tube (5) substantially surrounding the insulated male contact pin over at least part of its length and containing oil therein, and a plug component (200) that includes a sliding contact pin assembly (19) and a release mechanism (40). The release mechanism (40) enables linear tolerance sliding action between the receptacle component and the plug component after establishing electrical communication between the mating components. The sliding contact pin assembly further includes a shuttle pin (24) that is urged rearwardly during mating to operate the release mechanism, thereby allowing the male contact pin and front contact band (20) to move relative to the central spring support rod (30) of the plug component.

Abstract: The present invention relates to a method for covering an elongate object in particular an electric cable or a pipe. The method includes providing a covering assembly which includes a tubular elastic covering element having at least one end which is folded to define at least one backward folded portion and at least one forward folded portion; a first supporting element which is arranged radially internal to the covering element and which holds the covering element in a radially stretched condition, and a second supporting element which is coaxially arranged around the first supporting element, the second supporting element holding said forward folded portion of the tubular elastic covering element in a radially stretched condition; removing the first supporting element to allow the sleeve to gradually collapse onto the elongate object.

Abstract: An electrical penetrator for subsea use has an annular cavity between the connector pin and the body of the penetrator that is filled with a dielectric oil which may act as a pressure compensator. In certain embodiments, a plurality of nested boot seals provide a watertight seal between an electrical cable and the body of the penetrator. An inner boot seal has a stepped inner diameter which engages a central, axial, connector pin and at least one wall of a cylindrical projection or an annular recess formed in the external face of the penetrator body. An outer boot seal has a stepped inner diameter which provides a watertight seal to an attached electrical cable, the connector pin and an outer segment of the inner boot seal.

Abstract: A plug-in termination of a single-phase conductor in a power cable termination assembly for submerged use. A first barrier separates an outer pressure-compensated housing from the sea. A second barrier separates an inner pressure-compensated housing from the outer pressure-compensated housing. The single-phase conductor runs through the first and second barriers and is secured in the inner pressure-compensated housing by its end being terminated within an insulator body insertable into the inner housing. The unsheathed conductor end is electrically connected within the insulator body to a conducting pin which is fixedly embedded by molding into the insulator body.

Abstract: Embodiments of a cable connector are provided that include an inner connector assembly and an outer connector housing. In use, the cable connector securely fastens or splices together at least two cables or cable sections and in electrical communication while also providing fluid communication therebetween. The cable connector further protects, and preferably seals off, the connection interface between the cables or cable sections and from the environment.

Abstract: An integral, unitary cover assembly for covering an electrical connection between first and second electrical cables each having a primary conductor and a neutral conductor includes an inner elastomeric sleeve, an outer elastomeric sleeve and a duct member. The inner sleeve defines a cable passage to receive the electrical connection and the primary conductors of the first and second cables. The outer sleeve surrounds the inner sleeve. The duct member is interposed between the inner and outer sleeves. The duct member defines a neutral conductor passage configured to receive at least one of the neutral conductors therethrough.

Abstract: A connector may include first and second connector portions being movable between unmated and mated positions. First and second bladders may be in respective first and second connector portions and cooperate therewith so that opposing ends of the first and second bladders are urged together and moved from a closed to an open position as the first and second connector portions are moved from the unmated to the mated position. At least one of the first and second connector portions may define a circular constriction for closing an end of a respective bladder into a circular peripheral shape when the first and second connector portions are in the unmated position. One or both of the bladder ends may define a generally rectangular aperture when in the open position.

Abstract: A connector may include first and second connector portions movable between unmated and mated positions; first and second bladders carried by respective connector portions, and each having an end movable between a closed position and an open position; and an interlocking assembly including first and second portions carried by respective connector portions and being movable between a released position, permitting opposing ends of the bladders to move apart, and an interlocked position, holding the opposing ends of the bladders together. The interlocking assembly may hold the opposing ends of the bladders together as the opposing ends of the bladders move from the closed position to the open position and/or as the opposing ends of the bladders move from the open position to the closed position. Also, the interlocking assembly may provide a positive drawback between its first and second portions during movement from the interlocked position to the released position.

Abstract: A gravel pack completion with fluid loss control and fiber optic wet connect. In a described embodiment, a system for completing a subterranean well includes multiple assemblies installed in a wellbore. Each assembly has a fiber optic line. The fiber optic lines are operatively connected to each other after the assemblies are installed in the wellbore.

Abstract: A high-pressure connector for an electrical power cable segment having a central stranded conductor encased in a polymeric insulation jacket with an interstitial void volume in the region of the conductor. The connector confines a fluid within the interstitial void volume at a residual pressure above atmospheric, but below the elastic limit of the insulation jacket. A housing interior chamber receives the conductor in fluid communication with the interstitial void volume. Some embodiments have the chamber sized to receive and overlap a portion of the insulation jacket with a housing end portion swaged thereto. A seal seals the insulation jacket with respect to the housing and a retaining member secures the cable segment to the housing to prevent pushback of the insulation jacket at the residual pressure.

Abstract: An electrical penetrator connector has a fixed coupler pin unit which incorporates a pin having a conductive element. A reciprocatable component includes a housing defining a bore into which the pin may be inserted. Within the bore is a retractable shuttle pin. A chamber contains dielectric fluid. A flow path for the dielectric fluid is configured to move the fluid past a contact in the bore which is to touch the contact on the pin. The dielectric fluid circulates round the flow path every time the pin is inserted into the bore.

Abstract: The present invention relates to the field of subsea connectors allowing in situ repair of damaged subsea electrical cables used for heating subsea pipelines. Said connector (18) comprises electrical connection means (1), insulating means (5) surrounding said electrical connection means (1) and sealing means (11, 12) for preventing surrounding liquid such as sea water from coming into contact with said electrical connection means (1) in order to ensure watertightness. Said insulating means (5) are made of a wall disposed around said electrical connection means (1) so as to define a chamber (19) suitable for receiving at least one electrical cable end (20).