Abstract: A coaxial cable 10 includes a hollow-core-body 1 having an integral structure of thermoplastic resin including an inner annular portion 2 that insulation-coats an inner conductor 12, a plurality of rib portions 3 that radially extend from the inner annular portion 2, and an outer annular portion 4 that is connected to outer ends of the rib portions 3; three or more gap portions 5 surrounded by the inner annular portion 2, the rib portions 3, and the outer annular portion 4; and outer side reinforcing portions 7 being formed on both sides of an outer end in the rib portion 3, in which a size ratio of a minimum value W1 of a rib width in the rib portion 3 and a maximum value W2 of the rib width in the rib portion 3 is within a range of 1:1.6 to 1:3.0.

Abstract: The present invention relates a transmission line probe for use in a radar level gauge system configured to determine a filling level (L) and a density of a product contained in a container, wherein the transmission line probe comprises: at least one probe line adapted to guide an electromagnetic transmit signal (ST) towards and at least partly through the product, and to guide an electromagnetic return signal (SR) back from a surface or interface of the product; and a plurality of insulating dielectric beads arranged along the at least one probe line and configured to decrease electromagnetic signal attenuation caused by the product. The present invention also relates to a radar level gauge system comprising such a transmission line probe, and to a corresponding method.

Abstract: Electrical power transmission for well constriction apparatus via a rotatable spool positioned at and affixed to a moveable well construction apparatus at a wellsite and an electrical power cable at least partially wound on the rotatable spool and connected to stationary equipment at an end of the electrical power cable distal from the rotatable spool.

Abstract: The present invention relates to a marine drilling riser joint, adapted for the securement of one or more umbilicals (36) thereto. The marine drilling riser joint comprises one or more umbilical gutter assemblies (8), connected to or formed integral in an outer surface of a buoyancy module on the exterior of the marine drilling riser joint and provided parallel to the riser pipe, the umbilical gutter assembly comprising: an umbilical gutter (8) adapted to accommodate one or more umbilicals; and a resilient gutter cover (82a, 82b), which is elastically deformable by a loom tool, which resilient gutter cover in a closed position covers the umbilical gutter and in an elastically deformed position provides a working clearance to allow the one or more umbilicals to be introduced into the umbilical gutter.

Abstract: An endoscopic bipolar forceps includes a housing, a shaft affixed to the housing, and a pair of jaw members attached to a distal end of the shaft. The forceps also includes a drive assembly for moving one of the jaw members relative to the other jaw member from a first position to a second position for manipulating tissue. A movable handle is included which is rotatable about a pivot to force a drive flange of the movable handle into mechanical cooperation with the drive assembly to move the jaw members from the first position to the second position. The forceps is connected to a source of electrosurgical energy connected to each jaw member such that the jaw members are capable of conducting bipolar energy through tissue held therebetween.

Abstract: A method of making a wire array includes the step of providing a tube of a sealing material and having an interior surface, and positioning a wire in the tube, the wire having an exterior surface. The tube is heated to soften the tube, and the softened tube is drawn and collapsed by a mild vacuum to bring the interior surface of the tube into contact with the wire to create a coated wire. The coated wires are bundled. The bundled coated wires are heated under vacuum to fuse the tube material coating the wires and create a fused rod with a wire array embedded therein. The fused rod is cut to form a wire array. A wire array is also disclosed.

Abstract: A cord management apparatus comprises one or more magnets, configurable to be coupled to an electronic cord. The apparatus comprises one or more sheaths configured to be coupled to at least a portion of the electronic cord, wherein the one or more sheaths are configured to be magnetically attached to the magnet. A cord management device comprising one or more pliable sheaths is described also.

Abstract: A compressible module having an axial groove for localization of a cable or pipe having at least two module sections or submodules having differing physical properties.

Abstract: An insulator for a gas insulated device and method of making and/or producing the insulator are disclosed. The insulator includes an injection molded insulator disc and a conductor. The insulator disc includes a center opening encompassed by an inner bead inside which the conductor is arranged. The insulator disc includes, for example, a first material which is injection molded onto the conductor.

Abstract: A cable includes a sheath extending a length of the cable. The cable further includes a flexible wire disposed within the sheath that runs a substantial portion of the length of the cable. The wire acts to fold the cable in a pre-defined configuration. In some implementations, the cable also includes magnets disposed on or within the sheath. The magnets act to fold the cable in the pre-defined configuration in conjunction with the flexible wire.

Abstract: An electrical cable includes a central ground core, an inner dielectric layer surrounding the central ground core, and a pair of signal conductor wires spirally wound on the inner dielectric layer. The signal conductor wires are separated from the central ground core by a thickness of the inner dielectric layer, and spaced apart from each other and parallel to each other. The cable further includes an intermediate dielectric layer disposed between the signal conductor wires and an outer dielectric layer surrounding the signal conductor wires and the intermediate dielectric layer.

Abstract: Insulated conducting devices and related methods are disclosed. An insulated conducting device for a voltage structure comprises: a conductor connected to a voltage; and multiple insulation segments enclosing the conductor, the multiple insulation segments interfacing with one another.

Abstract: A power delivery system for parked aircraft includes protective rings on the power cords. These protective rings protect the power cord jackets from wear and facilitate movement of the power cords across the ground. The rings may be configured for securement to the cable so as to compress the insulative jacket of the cable somewhat, thereby firmly maintaining the rings in place on the cable. The rings may be formed of two identical elements that are joined to envelope the cable. The rings may accommodate both round insulated cable, as well as bundled cable.

Abstract: A retroreflective metal wire product (100) is described having a first coating (120) covering the metallic wires (110) wherein retroreflective beads (130) are partly embedded and a protective coating (150) covering said beads (130) and first coating (120). The metal wire product (100) can be made from a metallic strand (102) or wire, the metal being stainless steel, or low carbon steel or high carbon steel. The retroreflective metal wire product can be used for diverse appliances such as spoke wire, signalisation means, bookbinding wire to name just a few.

Abstract: The invention is a conveying wire (2) with disc-shaped conveying members (8) for use in endless tube conveyor systems. The wire (3) consists of a number of twisted strands (4) that each are made of thin threads or fibers, and including an outer jacket (6) to which the conveying members (8) are fastened directly by injection molding, where the outer jacket (6) consists of a polymer with a melting temperature which is lower than the melting temperature of the plastic material from which the conveying members are injection molded. The wire (3) is, for example, made as a balanced (torsionally neutral) wire consisting of at least three strands that each are made of very thin synthetic fibers which are individually surface treated with a polymer, providing great bending wearability to the fibers and good adhesion to the outer jacket (6) which consists of a polymer.

Abstract: The invention relates to a high temperature cable comprising a plurality of electric conductors which extend in a common envelop and are remote from each other and from said envelop by means of a plurality of insulating bodies which are successively disposed in the longitudinal direction of the cable and support each other, wherein said conductors are guided in through openings embodied in the individual insulating bodies. The aim of said invention is to simplify the production of the high temperature cable and to improve the properties thereof. For this purpose, the separate insulating bodies are associated with at least two conductors and form therewith at least two separate electrically insulated threads which are twisted and stranded.

Abstract: An insulation material based on polymeric plastic is specified, to which glass particles that consist of types of glass with different softening points are added for stabilization in case of fire. To provide protection in a very broad temperature range, at least three types of glass with different softening points are used as the glass particles, namely, a first type of glass with a softening point below about 470° C., a second type of glass with a softening point above about 470° C. and below about 620° C., and a third type of glass with a softening point above about 760° C.

Abstract: RF connection cable 2 for interconnecting an RF coil and an RF processing apparatus in an RF system of a medical MRI apparatus. The connection cable 2 is comprised of an outer sleeve 6 enclosing an inner cable comprising RF conductors 24, an inner sleeve 20 and a shield 22. Between the inner sleeve 20 and the outer sleeve 6 a plurality of spacers in the form of large beads 12-i alternating with small beads 14-i are provided. In this way, a very flexible cable is obtained having comparatively low dielectric losses and a low capacitive coupling with the patient.

Abstract: An insulator and cable, wherein the insulator includes a spacer of low dielectric factor having a first end and a second end, wherein the first end comprises more than about three quarters of an axial length of the insulator and wherein the first end has a generally cylindrical opening extending axially therein of a diameter sufficiently larger than the wire diameter such that the wire can be axially extended through the opening without contacting the first end and the second end has a generally conical opening having a larger end communicating with the cylindrical opening and a smaller end adjacent a wire retaining surface.

Abstract: A flexible test cable has a center conductor (210), a conductive sleeve (240) with an effective electrical length equal to an odd quarter wavelength of a frequency of interest, a dielectric spacer (230) located inside the conductive sleeve (240) for preventing a portion of the center conductor from electrically coupling to the conductive sleeve, and a dielectric joint (220) for maintaining a portion of the center conductor in the middle of an end of the conductive sleeve (240). The conductive sleeve (240) can have a variety of cross-sectional shapes. The dielectric spacer (230) can be formed in a variety of shapes from rigid or compressible dielectric materials. Likewise, the dielectric joint (220) can be formed in a variety of shapes from rigid or compressible dielectric materials. Using the dielectric joint (220) to link together multiple conductive sleeves (240) results in a flexible test cable (200) with electrical transparency at the frequency of interest.

Abstract: The present invention provides an electrical cable system including a first electrical cable and a second electrical cable. The first electrical cable includes a strip shaped insulation material with one or more electrical conductors disposed within the strip shaped insulation material. The second electrical cable includes a groove shaped insulation material for receiving the strip shaped insulation material and one or more electrical conductors disposed within the groove shaped insulation material. The first electrical cable and second electrical cable may be releasably joined to form a co-joined cable by mating the strip shaped insulation material with the groove shaped insulation material.

Abstract: The present invention is directed to support members for assemblies of conductors, conduits, or other means of conveying energy, gases, or liquids. The invention has a series of non-interlocking solids disposed along the length of a flexible base material. The non-interlocking solids have motion-limiting portions that contact similar portions on adjacent solids to restrict the movement of the support member in one direction, while permitting the support member to curve or bend in an opposite direction. The invention is also directed to assemblies incorporating the support members.

Abstract: To provide a protective guide for a retracting cable or the like to which excessive tension or stress is not imparted to a cable or the like during bending and extending or retracting operations operating a retracting unit in and out, and which does not need a troublesome securing operation for a cable or the like, and further which is excellent in even point of aesthetics. The present invention relates to a protective guide for a retracting cable or the like, which protects and guides a cable or the like extending between a case body 130 and a retracting unit 110 retractably accommodated in the case body. According to the present invention, the protective guide includes two linear tubular support members 140, which enclose the cable or the like to support it in a linear manner and a tubular bending member 120, which articulately connects said two linear support members 140 with a desired curvature or more.

Abstract: An improved thermocouple having a ceramic bead insulator is described. A pair of wires in parallel is joined at a first end to a thermocouple and joined at a second end to a connector. The pair of wires is threaded through each of a series of interlocking ceramic beads wherein the series of interlocking ceramic beads forms the ceramic bead insulator.

Abstract: A disc cable capable of preventing occurrence of fine pieces of a metal wire material caused by wear and damage of a metal wire and preventing mixing of the fine pieces into feed is provided. A cover layer 5 formed of synthetic resin is formed on the surface of a metal wire 4, and a groove-like part 6 to which the surface of the metal wire 4 is exposed is formed not forming a part of the cover layer 5 in a predetermined spacing relation in a longitudinal direction of a cable 2. Then, a disc 3 formed of synthetic resin is molded, and the synthetic resin is flown into the groove-like part 6 to form a protrusion 8 on the disc 3 to fixedly mount it on the cable 2 to produce a disc cable 1 having the discs 3 disposed in a predetermined spacing relation on the cable 2.

Abstract: Insulated wire or cable, the configuration of which is particularly well suited to the orderly coiling of the cable. The cable's insulation is formed in such a manner as to provide interlocking mating surfaces, which surfaces tend to hold the cable in its coiled configuration once so formed. According to one embodiment, the cable is splittable into its component insulated wires for mechanical or electrical connection thereto. This splitting may be by a slit or notch partially transecting a cross section of the insulated cable. Pulling the plurality of insulated wires in opposite directions tends to separate the cable into its component insulated wire portions. The stackable cable may be implemented utilizing cables; coaxial cables; solid wires; multiple strand wires, whether straight or twisted; and non-metallic electrical conductors.

Abstract: A multiple conductor electric and/or electro-optic cable is disclosed which has a series of integral insulation components (vertebrae) of a very low dielectric resulting in an excellent electron flow. The preferred embodiment includes multiple conductor assemblies each having an elongated cylinder, and each having a plurality of strands of electrical conducting material helically wound and longitudinally disposed between the ends of the cable. The innermost and outermost of such assemblies may serve as the anode. Helically wound in an axially opposing direction and lying between the two anode assemblies is the cathode. There may be as many as four layers of insulating vertebrae (typically made of balsa) each radially separating the conductor layers. The vertebrae may be of equal length and longitudinally aligned or displaced in a variety of configurations depending upon the application. The conductors terminate at connectors coupled to the cable itself by a low dielectric link.

Abstract: A variable impedance coaxial transmission line having a center conductor of constant cross-section, an outer conductor surrounding and coaxial with the center conductor and spaced radially therefrom, and a variable dielectric constant material between the center conductor and the outer conductor. The variable dielectric constant material has a plurality of alternating elements of high dielectric material and low dielectric material arranged along the center conductor from a first end to a second end of the center conductor. The invention also includes a reduced size, high-power broadband power/divider incorporating the variable impedance coaxial transmission line.

Abstract: A flashlight includes a flexible core comprising a pair of conductive wires which electrically connect a source of power to a power using implement. A flexible spine surrounds the pair of conductive wires and includes a plurality of interconnected universally rotatable members. A resilient sleeve engages the outer surface of the rotatable members forming the spine. The flashlight includes a working end housing and a base housing. A first anchor connects one end of the flexible core to the base end housing and a second anchor connects the other end of the flexible core to the working end housing. The outer surface of the resilient sleeve is restrained against relative twisting or longitudinal movement with respect to each housing.

Abstract: A heating element having at least one tail is provided for connection to an electrical source. The tail includes an electrically conductive wire with a sleeving around at least a portion thereof. The wire and sleeving are connected to a tubing and crimped for receipt within a connector. The connector is provided to receive the tubing and to connect to the voltage source allowing electric heat to pass through the length of electrically conductive wire and to thereby heat the heating element. The heating section is particularly suitable for pre-heating and post-stress weld stress relieving piping welds.

Abstract: In a coaxial electrical high-frequency cable, a spacer is provided between the internal conductor and the external conductor in order to maintain the operation of the cable even in the case of elevated ambient temperatures. The spacer can be a helical profile or of individual shaped pieces made of glass or ceramic materials.

Abstract: A flexible housing for use as a cable management system for a submarine mast is capable of flexing in a plane between predetermined limits. It comprises a conduit contained within a flexible outer jacket and formed of a plurality of abutting segments, each having an opening therethrough and forming a passage for containing transmission cables or lines. Each segment has a first pair of butting surfaces at each end on one side of the passage and a second pair of butting surfaces at the other side of the passage which prevent flexing of the housing beyond predetermined limits. The segments are coupled together by a pair of endless ligament loops which pass through channels in the segments and over pulleys at each end of the housing. The segments are of bi-concave and bi-convex complementary configurations arranged alternately along the length of the conduit.

Abstract: A process for producing an insulated electric wire, comprising the steps of coating around a conductor an energy radiation curable resin composition having heat expansible microspheres incorporated therein, and curing the energy radiation curable resin composition thus coating on the conductor by exposure to an energy radiation. The process also comprises the step of heating the energy radiation curable resin composition to expand the heat expansible microspheres in the energy radiation curable resin composition, thereby forming a high-porosity insulation layer on the conductor. An insulated electric wire comprises a conductor; an energy radiation curable resin composition layer having microspheres incorporated therein and surrounding the conductor, the outside diameter of the microspheres in the energy radiation curable resin composition layer being maximum in the vicinity of the conductor and decreasing gradually toward the periphery of the energy radiation curable resin composition layer.

Abstract: A coaxial cable has a plurality of insulated beads threaded onto an inner conductor and individually having an exterior shape such that a gap exits between each adjacent pair of beads with the gap increasing in width radially. A conductive flexible braid ensleeves the beads with that braid having interstices ventive of air but preclusive of the passage of plasma. An insulative covering ensleeves the braid and also is ventive of air but preclusive of passage of the plasma. A connector includes a termination having a barrel-shaped body fitting over the outer cable conductor. An outer connector element projects outward from the outer end of the body with that element having longitudinal slots that define a circumferentially-spaced series of flexible fingers. Those slots are ventive of air but have a size sufficiently small to preclude passage of a plasma. An inner electrical connector element projects outwardly from the inner cable conductor beyond the body.

Abstract: There is provided a cylindrical link and armor for electrical, electronic, or fiber-optic cables, hoses, conduits and the like. The armor comprises links which can either rigidly or flexibly interlock and can support their own weight.

Abstract: A flexible housing, for use in protecting one or more transmission lines in a pressurized environment comprises a conduit (10) contained within a protective outer jacekt (16). The conduit (10) is constructed of a plurality of conduit segments (18a and 18b), each segment having an opening (28) therethrough, the segments (18a and 18b) being arranged in series and caused to abut adjacent segments in such a way that the opening (28) through each segment (18a and 18b) is in communication with the openings through each of the adjacent segments so as to provide a passage to contain a microwave transmission line. Each segment (18a and 18b) is flexibly linked to its adjacent segments by coupling means (34).

Abstract: A flexible induction heating coil comprising an elongated flexible core having proximal and distal ends. The core includes a plurality of core segments flexibly interconnected to make the core more flexible than the individual core segments. An elongated flexible inductor extends along the core.

Abstract: A flexible housing for use in protecting one or more transmission lines in a pressurized environment is provided comprising a conduit contained within a protective outer jacket. The conduit is constructed of a plurality of conduit segments, each segment having an opening therethrough, the segments being arranged in series and caused to abut adjacent segments in such a way that the opening through each segment is in communication with the openings through each of the adjacent segments so as to provide a passage to contain a transmission line. Each segment is flexibly linked to its adjacent segments by coupling means.

Abstract: An elongated cable structure of rigid and flat transverse cross-section for protecting conduits of various types includes interior axial lines of high tensile strength which may be used to suspend equipment from one cable end and to force the equipment axially past obstructions in a well hole. The structure may be raised and lowered in the well hole by means of exterior teeth which are firmly secured to the underlying tensile lines project from the surface of the structure to mesh with traction drives.

Abstract: A strain sensitive coaxial cable is disclosed as comprising a centrally dosed conductor about which is disposed a first insulating layer, and a second conductor disposed coaxially about the center conductor, configured as a helix and dimensioned to loosely fit with respect to the first dielectric layer and to permit relative axial movement generally between the second conductor and the first dielectric layer, whereby more uniform signals, and elastic-inelastic strain discrimination are provided and spurious outputs eliminated. An outer protective sheath is disposed about the helical turns of the second conductor.

Abstract: An insulated electrically conducted shaft for medical coagulation instruments, and particularly for unipolar coagulation instruments is constructed with an insulating jacket consisting of separate conduit pieces formed of insulating material which are slipped onto the shaft. The conduit pieces have abutting end faces which engage adjacent pieces in an overlapping fashion with the overlapping being caused by engagement of two layers of staggered conduit pieces of equal length or by complementary step formed end faces of adjacent conduit pieces or by inner diameter or outer diameter radial dimensioned steppings of the abutting conduit pieces with the resultant gaps filled by filler conduit pieces.

Abstract: The leads to a heater for an electrothermal hydrazine monopropellant thruster comprise tungsten conductors wrapped with smaller diameter tungsten support wire and insulated with beads of alumina (Al.sub.2 O.sub.3). A transition section connects the leads to regular leads. An attaching support wire is attached to the heater at one end and to the transition section at the other end. The insulated conductors and attaching wire are wrapped together with nickel ribbon to form a sheath.

Abstract: An elongated flexible resistance heating element includes a heat transmitting cover that is generally coextensive with the element. A resilient element is provided adjacent one end of the heating element to accommodate extension of the cover for use of the heater as desired without changing the length of the element or cover. The extensible tape heater of the present invention comprises an elongated flexible resistance wire heating element, a heat transmitting extendable cover arranged coextensive with the heating element, a substantially nonresistive wire connected about one end of the heating element, a spring surrounding the nonresistive wire and abutting the cover at one of its ends, a stop positioned about the non-resistive wire in spaced relation to the end of the cover, and a flexible sleeve extending over the spring.

Abstract: A dielectric system for coaxial electrical conductors is provided. The dielectric system separates an inner and outer conductor and is composed of a first layer of braided high tensile strength polymeric fluorocarbon filaments in an open weave surrounding the inner conductor. Surrounding the layer of braided filaments is a continuous layer of a polymeric film which is in turn surrounded by a continuous layer of a crosslinkable polymeric lacquer enclosing both the layer of braided filaments and the layer of polymeric film.

Abstract: An impedance skin effect heating system for tanks or vessels containing a liquid includes a heating unit having a rigid outer pipe conductor mounted through an opening in the tank and extending therein, to be immersed in the liquid and a rigid central conductor supported within the outer pipe conductor by spaced-apart temperature resistant asbestos insulation discs. The insulation discs are held to the central conductor by flanking metal collars welded to the central conductor for insertion of the central conductor into the outer pipe conductor while maintaining the desired position of the insulation discs on the central conductor. An end cap is welded to both the outer conductor pipe and the central conductor, sealing the ends thereof and establishing electrical contact therebetween.

Abstract: A flexible cable suitably used as a jacket or cover for an inner conduit member such as a gas conduit or a liquid conduit, a signal transmission line, or an energy transmission line, or the like, which can provide safe use of the conduit inserted thereinto by limiting the bending radius thereof. The cable includes a plurality of axially symmetrical pipe members having large and small diameter ends which are assembled with the small ends of each pipe member fitted into the large end of an adjacent pipe member and loosely fitting flexible ring members fitted over the small ends of the pipe members.

Abstract: A dielectric system for coaxial electrical conductors is provided. The dielectric system separates an inner and outer conductor and is composed of a first layer of braided high tensile strength polymeric fluorocarbon filaments in an open weave surrounding the inner conductor. Surrounding the layer of braided filaments is a layer of cellular polyparabanic acid tape which is helically wound along the length of the cable with a negative overlap. Circumferentially surrounding these two layers along the length of the cable is a continuous layer of polymeric film which is in turn surrounded by a continuous layer of a crosslinkable polymeric lacquer.

Abstract: A heating element comprising a plurality of ceramic components strung together on a heating wire to form a flexible structure, adjacent ceramic components comprising integrally formed mating projections and depressions. The element comprises ceramic components of a type each having a body defining two generally parallel passages therethrough, both passages terminating at one end in a depression, one passage terminating at the other end in a depression and the other passage terminating at the other end in a projection.

Abstract: A support insulator disk for a flexible high voltage transmission line supports a flexible central conductor along the central axis of a conductive outer housing which is transversely corrugated for flexibility. A plurality of such axially spaced disks are provided along the axis of the transmission line. Each disk consists of identical halves which are snapped together over the central conductor by identical snap latch pairs on the opposite sides of the halves. Each latch pair consists of an extending flexible member centrally located on the outer rim of the disk, and which overlies the other half and snaps into a depression in the other half. A direct line-of-sight is prevented from the central conductor to the outer conductive enclosure at the joint between the two halves of the insulator.

Abstract: An insulator disk for supporting a flexible conductor within a flexible gas-filled outer housing consists of three identical segments which latch together to form a complete disk around the central flexible conductor of the flexible cable. The outer peripheries of the three segments form a continuous outer periphery which is pressed into engagement with the interior surface of the grounded outer housing. Each of the identical segments has an extending latch at one of their outer surface ends and a latch receiving surface at the other of their outer surface ends, wherein the extending latch of one segment latches into the latch-receiving segment of an adjacent segment.