Abstract: A compression ring includes an outer surface opposing an inner surface, with teeth extending radially inwardly from the inner surface. First and second circumferential ends are complementarily interfittable, and are separated by a circumferential gap, allowing the compression ring to be compressable when being installed in a connector assembly. First and second axial ends of the compression ring are chamfered to facilitate compression. The teeth extend circumferentially from the first and second circumferential ends and are complementary to conduit threading. Each tooth includes first and second sides, with the first side perpendicular to the inner surface to resist pullout of a conduit from the connector assembly. The teeth terminate in sharp points for better gripping of unthreaded conduits. A compressed compression ring accommodates threaded conduits by complementarily mating with threading, and unthreaded conduits by biting into their outer surfaces.

Abstract: A cable holding structure includes a plate-shaped member having an opening, and a conductive wire holding portion holding a plurality of wires inserted therethrough, the wire holding portion being disposed in the opening and electrically connected to a braided shield that collectively covers the plurality of wires. The wire holding portion protrudes from the opening of the plate-shaped member and includes a plurality of through-holes extending in a direction orthogonal to the plate-shaped member. The plurality of wires are each enclosed in the through-holes. The braided shield is electrically connected to an outer surface of the wire holding portion protruding from the opening.

Abstract: An electrical feed-through includes an electrically conductive connection pin and an elastic insulation member coupled to the connection pin by vulcanizing the insulation member, wherein the coupled connection pin and insulation member are arranged in an opening of a casing and pressure-tightly clamped in the opening by a fastening element.

Abstract: A data center (100) includes at least one rack room (in for example module 140) having a floor and a plurality of rack storage areas on the floor, each rack storage area being arranged to accommodate a plurality of racks (143) in which a plurality of rack-mountable electronic components may be housed, one or more controllable air circulation systems (in for example module 122), one or more cold aisles (144) in the rack room, each cold aisle being adjacent to a rack storage area, and one or more hot aisles (145) in the rack room, each hot aisle being adjacent to a rack storage area. There may be a large air duct, in the form of a personnel corridor (123), for transporting, under the control of the one or more air circulation systems, cooling air, above the floor, to the one or more cold aisles. The air supply corridor/duct (123) may have a height greater than 1.5 m above the floor and a cross-sectional area of at least 2 m2 and a maximum dimension in the plane of the cross-section of less than 3 m.

Abstract: A cable gland and gasket ring assembly includes a gasket ring and a cable gland formed of a shell, a collar, a packing ring and a connection ring for securing a cable, or, a cable and a flexible conduit, to a junction box. The gasket ring is an annular member, having a first end face, a second end face opposing the first end face, a plurality of annular ribs concentrically arranged on the first end face and an annular convex portion located on the second end face. The connection ring has a stop flange segment, a first connection ring segment extended from one side of the stop flange for holding the gasket ring, an outer thread located on the first connection ring segment for fastening to a junction box, a recessed portion on the stop flange segment for receiving the annular convex portion of the gasket ring and a tapered inner surface located on the inside of the stop flange segment for stopping against a tapered outside surface of the packing ring.

Abstract: The invention relates to a cable gland plate for passing cables in a sealed fashion through a casing, such as the wall of a low voltage switchgear. The cable gland plate includes a substantially rectangular rigid frame (6) and, a set of gland elements (7,8,9) and a pressure unit (16). According to the invention, one pair of opposed edges (12) of the rigid frame includes slide bars (10); one pair of opposed edges of each gland element (7,8,9) includes slide posts (14) arranged to be fitted to the opposed slide bars; and the pressure unit (16) includes an actuator (35) carrying out two sequential pressure actions in such a way that the first pressure action presses the gland elements to each other in the lengthwise direction of the slide bars, and the second pressure action pushes the pressure unit against the frame and the adjacent gland elements.

Abstract: A liquid-proof structure for wires includes a wire frame and a blocker. The wire frame has an accommodating space, at least one limiting slot and a second hole. The wire frame is disposed on the first hole and the wire frame provides a connection between an interior of the casing and outside through the second hole. The limiting slot is used for limiting a position of the wire. The blocker has at least one wire slot. The blocker is disposed in the accommodating space of the wire frame, and the wire slot is used for limiting a position of the wire. The wire is limited and fixed by the wire slot of the blocker. The wire is wrapped by the wire slot, so that liquid is prevented from going through the liquid-proof structure by an elasticity and a liquid-resistance of the blocker.

Abstract: The invention relates to a bushing for sealing a strand-shaped element (10), in particular one or more lines, in an opening (14) of a wall (15), comprising a foamed sealing body (40), which completely surrounds the strand-shaped element (10) and defines a volume, and a fastening body (20) for fastening the bushing to the wall (15), characterised in that the fastening body (20) is made of a different material than the sealing body (40), the volume defined by the scaling body (40) is delimited on one side at least along a portion of said side and is connected at least by bonding to the sealing body (40) along said portion.

Abstract: A seal (300) for use in a cable gland (301) is disclosed. The seal (300) has a body portion (308) formed from a first rubber material having a first hardness and seals against a cable (320). The seal (300) also has one or more support portions (302,304) formed from a second material that is harder than the first material and supports the structure of the body (308) against excessive deformation as well as forming a mechanical grip with the cable (320).

Abstract: Bushings, sealing devices, tubing, and methods of installing tubing are provided. One aspect of the invention provides a bushing having one or more axially-extending tongues. Another aspect of the invention provides a sealing device for connecting a length of tubing. The sealing device includes a body member defining a sleeve portion and a bushing arranged to be received in the sleeve portion. The bushing includes one or more tongues adapted and configured to be received over at least one layer of the tubing.

Abstract: A new bushing for strain reducing electrical fittings is disclosed. The bushing increases the pull-out performance of the fitting by including a textured area where the bushing comes into contact with the cable. The textured area may be created by affixing solid particles to the bushing so that the friction between the bushing and cable is increased.

Abstract: A device includes a cover defining a sleeve allowing a transmission cable pass through to communicate inner with outer of the device. An elastomer is filled in the sleeve and embedded with the transmission cable. A fastening member is employed to engaged with the sleeve to tightly press the elastomer embedded with the transmission cable to prevent water from entering into the device along the transmission cable and the sleeve.

Abstract: The invention relates to a device for fixing a cable to a cable outlet connector, consisting of a clamping sleeve, a spring element and a locking ring, whereby the spring element is in the form of an open ring whose ends are clamped between a supporting contour of the clamping sleeve and a driving contour of the locking ring, while the spring element is variable in diameter by means of a relative movement of the locking ring with respect to the clamping sleeve.

Abstract: A watertight seal assembly for an electrical connection prevents moisture intrusion with a submerged device and features a wire plug having an opening sized for watertight receipt of a wire jacket and apertures sized to feed wire leads into the housing of the electric device. The wire plug is sized to form a watertight seal within a frusto-conical cavity located on the housing of the submerged electric device. A wire cap having a hole for sealed passage of the wire jacket fits over the wire plug and locks together with an attachment hub on the housing of the submerged electric device, producing a watertight seal. The inner surface of the hole in the wire cap opening includes nubs that bite into the wire jacket as the wire cap is twisted, thereby creating a watertight seal between the cap and wire jacket and providing an additional barrier for avoiding moisture intrusion.

Abstract: A damming device for a conductor in a cable gland connector is described herein. The damming device can include a first portion having a first thickness of a flexible elastomeric material disposed between a first diameter and a second diameter. The damming device can also include a second portion having a second thickness of the flexible elastomeric material disposed between a third diameter and the second diameter. The damming device can also include a hole having the third diameter. The first diameter is greater than the second diameter, and the second diameter is greater than the third diameter. Further, the first thickness is greater than the second thickness. The damming device can be disposed, under tension, within a slot formed between a top portion of a compound chamber and a bottom portion of a union body.

Abstract: A cable attachment assembly for sealing and retaining three flat cables entering a telecommunications closure provides a grommet having three radially arrayed passageways and a grommet washer having a flat portion and a raised portion for simultaneously maintaining compressive force to the grommet and mitigating creep of the grommet during thermal cycling.

Abstract: In one aspect of the present invention, an accessible indirect entry cable gland has a collar having a first end, an opposite, second end, and a first bore adapted for receiving a cable having one or more electrical conductors from the first end thereof and passing the cable through the second end thereof into a flameproof enclosure, a flame-resistant bushing filling a first part of the first bore of the collar at the second end thereof and adapted for passing the cable therethrough and holding the cable in place, and a cap having a first end and an opposite, second end, and a second bore adapted for receiving the cable from the first end thereof and passing the cable having one or more electrical conductors through the second end thereof into the collar.

Abstract: A double-packing cable and flexible conduit gland for securing a cable and a flexible conduit to a box member, including a casing having a tapered inner surface portion and a first outer thread, a packing member inserted into the casing and defining a first packing segment compressible to clamp on the flexible conduit, a second packing segment compressible to clamp on the cable, an annular retaining rib protruded from an inside wall thereof for engaging the grooved periphery of the flexible conduit and a beveled end edge located on one end of the first packing segment remote from the second packing segment, and a holding-down cap threaded onto the first outer thread of the casing to hold down the packing member on the flexible conduit and the cable together and having a beveled edge disposed on the inside and stopped against the beveled end edge of the packing member.

Abstract: An electronic communication wire connecting an input speed sensor and a computer controller in a transmission system is provided. The electronic communication wire connects at one end to the input speed sensor through a first aperture in the transmission case and at the other end to the computer controller through a second aperture in the transmission case. Thus, the electronic communication wire is attached at both ends to internal devices but it partially exists external to the transmission case along the length of the electronic communication wire. The connection between the electronic communication wire and the input speed sensor is sealed with at least a single O-ring while the connection between the electronic communication wire and the computer controller is sealed with at least a pair of O-rings. A method of electronically connecting the input speed sensor and the computer controller externally of the transmission case is also provided.

Abstract: There is provided a waterproof structure of a wire leading portion. A rubber cap is assembled with wire connected to a circuit board. A housing accommodates the circuit board. A packing holder is accommodated next to the circuit board through an opening of the housing. A packing is assembled on an outer periphery of the packing holder to be in close contact with an inner surface of the housing. The packing holder includes: a rubber cap secession prevention wall formed in a direction that crosses an accommodation direction; a wire insertion hole formed to penetrate the wall; and a rubber cap accommodation chamber communicating with the wire insertion hole and continuing to an inner surface of the wall. The inner surface of the wall and a cross-section of the circuit board are formed to hold the rubber cap that is accommodated in the rubber cap accommodation chamber.

Abstract: There is provided a waterproof structure of a wire leading portion. A rubber cap is assembled with a wire connected to a circuit board. A housing accommodates the circuit board. A packing holder is accommodated next to the circuit board through an opening of the housing. A packing is assembled on an outer periphery of the packing holder to be in close contact with an inner surface of the housing. The packing holder includes: a wall formed in a direction that crosses an accommodation direction; a wire insertion hole formed to penetrate the wall; a rubber cap accommodation chamber communicating with the wire insertion hole and accommodating the rubber cap at an inner surface side of the wall; and an air hole formed to penetrate the wall and positioned above the wire insertion hole in a state where the housing is fixed.

Abstract: An electrically conductive structural connection employs a pass through or fastener having a first diameter. A fastener hole, with a second diameter larger than the diameter of the pass through, extends through a thickness of a structure and receives the pass through. A bushing having a diameter and a thickness to fit between the first and second diameters extends though and past the thickness of said structure. When the feedthrough is compressively secured to the structure, the bushing expands radially between the first diameter and the second diameter to maintain at least one contact point between the fastener and the structure.

Abstract: An exemplary connector assembly includes a connector body, a compression nut, a compression ring, and a sealing ring. A conduit may be inserted through the compression nut and the connector body. The compression ring may include a circumferential gap between two complementarily interfittable circumferential ends to allow it to compress, and the sealing ring may vary in diameter along its axial length. As the connector body screws into the compression nut, the compression nut presses against the compression ring, which in turn pushes the sealing ring against the connector body. The connector body may include a connector chamfer. The sealing ring pressing against the connector body, preferably against the connector chamfer, forms a seal between the conduit and the connector body. The seal resists contaminants such as dust and moisture. Compression of the compression ring around the conduit helps secure the conduit to the compression nut and the connector body.

Abstract: A double-packing cable and flexible conduit gland for securing a cable and a flexible conduit to a box member, including a casing having a tapered inner surface portion and a first outer thread, a packing member inserted into the casing and defining a first packing segment compressible to clamp on the flexible conduit, a second packing segment compressible to clamp on the cable, a tapered outer surface located on the second packing segment and stopped against the tapered inner surface portion of the casing, an annular retaining rib protruded from an inside wall thereof for engaging the grooved periphery of the flexible conduit and a beveled end edge located on one end of the first packing segment remote from the second packing segment, and a holding-down cap threaded onto the first outer thread of the casing to hold down the packing member on the flexible conduit and the cable together and having a beveled edge disposed on the inside and stopped against the beveled end edge of the packing member.

Abstract: The present invention is directed to a wire fitting that may be used to pass a wire, cable or other conductor through a surface in order to produce a substantially secure and water tight connection between the wire fitting, the wire and the surface. The wire fitting may include a cap unit that is configured to be removably affixed to a base unit. The cap unit and the base unit may include corresponding threads to allow the cap unit to be screwed onto the base unit. A compressible plug may be placed between the cap unit and base unit in an opening at an end of the base unit. A washer with a set of ridges may also be placed between the cap unit and the base unit on the compressible plug to facilitate compression of the compressible plug and secure the cap unit into place.

Abstract: Fixing device for cables which have at least one conductor (2) which is provided with at least one insulation (3), on a housing feed-through (4) of a housing (5), where the fixing device (1) has a locking ring (13) with a cable feed-through channel, which locking ring can be axially fixed on the external circumference of the cable, where the locking ring (13) is fixed on the housing (5) in a locking manner.

Abstract: In a leadthrough for an electrical high voltage conductor through a wall which separates a process area from an ambient area, comprising a body of a dielectric high voltage resistant material, two axially adjacent geometric base structures are provided, a cylinder and a truncated cone having a smaller diameter end adjacent the cylinder so that the cylinder has a radial annular surface area adjacent the truncated cone, and the cylinder includes axially extending gas supply bores arranged uniformly distributed over the circumference of the cylinder and having exit openings at the radial annular face of the cylinder such that gas supplied to the gas supply bores at the ambient area end of the cylinder is discharged from the gas supply bores onto the outer surface of the truncated cone to form a gas envelope around the truncated cone.

Abstract: An electronic device includes: a board having a first connector; a housing in which the board is disposed and which has a work opening for allowing external work for the board; and a cable which has an end reaching the board by passing through a path within the housing and has a second connector to be mated with the first connector and disposed at the end. The electronic device further includes a cable holding section provided at an inner wall of the housing and having a slit whose width is smaller than a size of the second connector. The cable holding section holds the cable so that a part of the cable reaches the work opening.

Abstract: An electrical feed-through includes an electrically conductive connection pin and an elastic insulation member coupled to the connection pin by vulcanizing the insulation member, wherein the coupled connection pin and insulation member are arranged in an opening of a casing and pressure-tightly clamped in the opening by a fastening element.

Abstract: A moisture proof electrical connector assembly for securing an electrical metal tube or conduit to a connector body having opposed end portions and having a bore extending therethrough wherein an end portion includes a first linear length sized and shaped to receive a metal tube or conduit and a second linear length having a diverging inner surface provided with an intermediate shoulder for delineating the first length form the second linear length, and a complementary sealing gland for rendering the entire assembly moisture proof.

Abstract: A seal (300) for use in a cable gland (301) is disclosed. The seal (300) has a body portion (308) formed from a first rubber material having a first hardness and seals against a cable (320). The seal (300) also has one or more support portions (302,304) formed from a second material that is harder than the first material and supports the structure of the body (308) against excessive deformation as well as forming a mechanical grip with the cable (320).

Abstract: Contemplated device, assembly and methods include a sensor feed through assembly that protects and seals a set of wires. The assembly has a body, a first seal, a second seal and a cover. The wires thread through a first opening on the body through a second opening of the first seal and exit orthogonally between the first seal and the second seal. The cover tightens the entire assembly and secures the wires between the two seals. The entire unit can be coupled to other pressurized vessels under different temperatures and pressurized environments.

Abstract: A lead-through terminal for leading an electric line through a wall, having a first terminal housing and a second terminal housing, at least one first conductor connection member in the first terminal housing and at least one conductor connection member in the second terminal housing, and a bus bar electrically connecting the first conductor connection member to the second conductor connection member when the first terminal housing and the second terminal housing are connected together. The two conductor connection members each have a leg spring and a metal part, the leg springs each having a clamping leg and a contact leg, the clamping legs and corresponding metal parts each form a spring-force clamp connection for connection of an electrical conductor. The bus bar is arranged in the first terminal housing and electrically conductively connected at a first end thereof to the metal part of the first conductor connection member.

Abstract: A connector for a conduit for a cable (e.g. an optical fibre cable or a power cable). The connector comprises a hollow body having a throughway for the cable with a coupling for a conduit at one end and a cavity in which an annular seal is located. An actuator is provided to compress the seal radially inwardly into engagement with the cable and into engagement with said side of the cavity to block flow of fluid (gas or liquid) through the cavity and/or to grip the cable. The connector may have means to retain the actuator in the position in which it compresses the seal.

Abstract: A frame is disclosed for receiving one or more modules for cable entries or pipe penetrations. A compression unit is an integrated part of the frame in at least one embodiment, which compression unit is to compress the modules inside the frame. The compression unit includes three compression wedges. An upper and a lower compression wedge have the same orientation, while a middle compression wedge has an opposite orientation. The middle compression wedge is oriented with a broad side facing an opening of the frame receiving the modules. At least one compression screw goes through openings of the upper and lower compression wedges and through a slot in the middle compression wedge.

Abstract: An electrical feedthrough assembly for providing connection to components of a compressor. The electrical feedthrough assembly includes a housing having an inner surface defining a channel. A sealed wire assembly is provided in the channel. The sealed wire assembly includes a body having an outer surface defining a groove and a plurality of wires sealingly passing through the body. An o-ring fits in the groove to provide a hermetic seal between the body and the inner surface of the housing.

Abstract: A compressible sealing gasket for supporting a cable in a wall opening contained in a housing wall includes a pair of gasket sections each having a planar surface that contains a recess, and at least one integral compressible sealing projection extending from the planar surface adjacent the recess. When the gasket sections are placed in an assembled condition with their planar surfaces in contiguous engagement, the recesses cooperate to define a cable opening for receiving a cable, and the projection is compressed between the gasket sections to seal the space between the gasket sections adjacent the cable opening. Preferably two laterally spaced integral sealing ribs are provided in each recess, which sealing ribs extend transversely completely across the recess and terminate at each end in a sealing projection that extends upwardly from the associated planar surface.

Abstract: An exemplary high-voltage bushing has a conductor and a core surrounding the conductor, wherein the core includes a sheet-like spacer, which spacer is impregnated with an electrically insulating matrix material. The spacer can have a multitude of holes that are fillable with the matrix material. The spacer can be net-shaped or meshed. It can be a net of fibers. The bushing can be a fine-graded bushing with equalizing plates within the core. As a matrix material, a particle-filled resin can be used.

Abstract: An electronic communication wire connecting an input speed sensor and a computer controller in a transmission system is provided. The electronic communication wire connects at one end to the input speed sensor through a first aperture in the transmission case and at the other end to the computer controller through a second aperture in the transmission case. Thus, the electronic communication wire is attached at both ends to internal devices but it partially exists external to the transmission case along the length of the electronic communication wire. The connection between the electronic communication wire and the input speed sensor is sealed with at least a single O-ring while the connection between the electronic communication wire and the computer controller is sealed with at least a pair of O-rings. A method of electronically connecting the input speed sensor and the computer controller externally of the transmission case is also provided.

Abstract: The invention relates to a sealing device for a chamber partition, the partition having an orifice enabling a strand of conductor wires to pass between the outside and the inside of the chamber. The device includes a plug through which passes the strand, and an apparatus to keep the plug pressed against the partition. The conductor wires can be kept away from one another inside the plug to ensure the seal-tightness of the plug itself. Advantageously, the plug is pressed into a void of a counter-form, the internal shape of the void substantially complementing an external shape of the plug. The form/counter-form assembly provides for a perfect seal-tightness.

Abstract: Connector bushings are crimped to the terminal ends of tubular electrical heating elements for heating equipment, particularly equipment intended for use in hazardous environments, e.g. where there is a risk of explosion.

Abstract: A cable seal assembly includes a sealing member, a first housing member, and a second housing member. The sealing member defines a passageway that extends from a center opening of the sealing member through the periphery of the sealing member. The first housing member is disposed in the passageway and the center opening of the sealing member and defines a cutout portion. The second housing member is disposed in the center opening of the sealing member and engaged with the cutout portion of the first housing member. The first housing member and the second housing member cooperatively define a central axial passage having an inner surface.

Abstract: A sealing body for a cable sleeve, in which a compensation element is embodied as an elastomer element that is inlaid or embedded in the gel-like sealing element is disclosed. The compensation element, by means of which the alterations in the material behavior of the gel-like sealing element which occur in use can be compensated, is embodied as an elastomer element inlaid in the gel-like sealing element.

Abstract: A dual-clamp device attaches a pair of metal clad cables to a junction box. The clamp device is integrally formed defining a pair of side-by-side cable receiving members separated by a central web. Each cable receiving member is generally in the form of an elongate split cylinder permitting radial resilient movement. Forward fingers on each cable insertion end of the cable receiving member provides for engagement with the wall in the junction box upon insertion. The cable receiving member supports the wall of the junction box between the forward fingers and a spring tab on the central web.

Abstract: An electrical lead anchoring assembly comprising a body comprising at least one recess and at least one channel therethrough for receiving at least one electrical lead, at least one arm pivotably coupled to the body and moveable between an open and a closed position wherein the arm is at least partially disposed within the recess such that the arm intrudes into the channel and frictionally abuts at least a portion of the length of electrical lead disposed in the channel to couple the lead to the body.

Abstract: A water proof electrical connector assembly for securing metal tubing to a junction box or in an end to end connection having a connecting body with opposed open ends, and an electrical metal tubing secured to at least one open end. The open end includes a linear length sized to snugly receive the end of the metal tubing and a diverging linear length immediately adjacent the open end. A sealing gland having a complementary tapered outer surface with a radially outwardly extending flange and a split compression ring fitted onto the metal tubing so that when assembled, the sealing gland provides a fluid tight seal, and the split ring effects a mechanically tight, electrically grounded, connection between the connecting body and the metal conduit.

Abstract: A cable strain relief that includes an over-molded portion affixed to a cable and a flexible decorative boot. The decorative boot is passed through an opening in an enclosure. The cable is passed through a cylindrical space form in the decorative boot until the over-molded piece engages the walls of the cylindrical space, holding it in place. The over-molded portion is positioned within the decorative boot such that a flange is seated on a collar of the decorative boot within the enclosure.

Abstract: A cost efficient electrical feedthrough is provided for forming a hermetic seal with a container and allowing a desired number of inputs to be connected between varied environmental conditions. The electrical feedthrough can be employed for environmental conditions including high pressures, high temperatures, low temperatures and the presence of corrosive gases. A first wire situated in a first environmental condition and a second wire situated in a second environmental condition are connected via a conducting material. The first environmental condition and the second environmental condition are separated by a divider having an opening for passing therethrough either the first wire or the second wire. A first seal extends from the divider to a material in contact with the conducting material.

Abstract: A module is mounted to a object with a fastener and a special washer. The fastener engages the object through a mounting opening in mounting portion of a module case. The washer has a first portion extending obliquely outward and downward to be deformed between the fastener head and an electrically non-conducting surface of the mounting portion and thus increase a mounting force on the module with mounting advancement of the fastener. The washer has a second portion extending axially into the internal opening to contact an electrically conducting insert therein and thus create a series electrical circuit from the typically grounded object through the fastener, washer and insert to a detecting circuit, which verifies that the module is securely mounted with a predetermined mounting force.

Abstract: The invention relates to a fluid-tight, in particular oil-tight, cable duct (10) with a duct body (12), includes an inner side (16), exposed to a fluid, an external side (18) separated from the fluid and at least one cable channel (20), through which at least one electrical line (14) formed by a flex is run from the inner side (16) to the outer side (18) of the duct body (12). A seal element (22) is arranged in the cable channel (20) with a number of individual channels (32) passing therethrough which corresponds to the number of lines and through which the lines (14) run individually. The lines (14) are each formed from two line sections, connected by an electrically-conducting connector piece (50) with a solid cross-section, whereby the connector piece (50) is housed within the single channel of the sealing element (22), at least over a part of the length thereof.