Abstract: The invention relates to a fluid transport device for incorporating in a structure that is not electrically insulating, in particular being made of a composite and including an electrically resistive tube, with conductive endpieces including means for fastening to said structure, wherein the tube comprises: a central section having resistance of less than 104 ? per meter of length; and two end sections, at least one of which presents effective resistance lying in the range 100 k? to 500 k? and terminating in an end coupling; at least one conductive element electrically connecting a conductive endpiece and an end section having a said effective resistance lying in the range 100 k? to 500 k?, said effective resistance being defined as the value of the resistance of the end section between the central section and the conductive element.

Abstract: A water heater includes a water container, a combustion chamber having an opening that may be covered by a door and located adjacent the water container, a burner associated with the combustion chamber and arranged to combust fuel to heat water in the water container, and a control valve for regulating fuel flow from an external fuel source. A fuel line extends between the control valve and the burner, the fuel line has a first substantially rigid portion connected to the control valve, a second interior portion extending from the door to the burner and a third flexible portion fixedly connected to both of the first and second portions.

Abstract: A method for manufacturing an insulated duct segment includes the step of forming an inner duct that has an inner duct cross-sectional area and an inner duct length. An outer duct with an outer duct cross-sectional area and an outer duct length is also formed. The method further includes the step of placing the inner duct inside the outer duct such that an annular space is formed between the inner duct and the outer duct. Finally, fluidized insulating material is injected into the annular space.

Abstract: A method and apparatus for joining materials having primarily ferritic properties is described. The method includes joining the ferritic materials using a welding process and a weld material having a primarily austenitic microstructure. The resulting weldment enhances the properties of yield ratio, uniform elongation, toughness and tearing resistance thereby producing superior strain capacity. High strain capacity produces a structure that accommodates high axial loading. The weldment can also accommodate larger than conventional weld flaws while maintaining sufficient strength, tearing resistance, and fracture toughness under high axial loading.

Abstract: A method for forming a flare in the end of a flexible tube comprises heating the end of the flexible tube to a near-melted state, inserting the end of the flexible tube into a flare-forming die with a flare forming portion, and pressing a mandrel into the end of the flexible tube, thereby pressure forming a flare in the end of the flexible tube.

Abstract: A cold water pumping system comprises a center tube and a cold water pipe surrounding the center tube. The cold water pipe is supported from a bottom end of the center tube and an impeller is coupled to the bottom end of the center tube. The impeller is operable to move water through the cold water pipe, wherein the cold water pipe is comprised of a plurality of segments. Each segment of the cold water pipe comprises at least two frame sections configured to be coupled together to surround the center tube and a removable skin configured to be inserted throughout the perimeter of the at least two sections.

Abstract: A flanged duct blank has a male part defined by lead notches formed at each side of a leading end and has a female part defined by trail notches formed at each side of a trailing end. The male part includes a lock tab. The female part includes a leg part and a Z-bend. The Z-bend includes a leg part and a gap. The duct blank is repeatedly clamped and bent by a pivoting wiper to form a duct portion. The pivoting wiper includes a clench tool that has a retractable rib and a retractable roller. With the lock tab inserted into the Z-bend and the retractable rib engaged with the Z-bend, the retractable roller clenches the leg part over the lock tab to lock the male and female parts together in a duct seam.

Abstract: A device for improving down hole operations includes a tube that delivers high pressure jets of fluid against the interior surface of a well casing and optionally into perforations of the well casing. The tube also includes a helical array of brushes that scrape and scratch accumulated residue from the interior surface of a well casing and optionally into perforations of the well casing. A method for improving down hole operations includes moving the device into a bend or turn in an existing well casing string and retracting a nozzle or brush to facilitate passage of the device past the bend or turn.

Abstract: An unitized curtain wall unit houses energy conversion devices (such as photovoltaic modules), and includes integrated wiring conduits for routing signal and power cables within a building façade or exterior shell structures.

Abstract: A system and method is described generally for affecting atmospheric change. The system and method include providing a high altitude conduit or track. The system and method also include providing a first material through the conduit or via a payload delivery system. Further, the system and method include expelling the first material into the atmosphere at high altitude.

Abstract: The invention relates to a protective tube which is slit in the longitudinal direction and is provided with a closing element that maintains the longitudinal edges along the slit on a plane relative to one another. Said protective tube is characterized in that the closing element is a separate profiled piece, of which the cross-section has such a shape that a central web of said profiled piece is inserted between the longitudinal edges of the tube, the top face of the tube is covered by the profiled piece along the longitudinal edges, and the internal faces of the tube are supported by the profiled piece. The invention further relates to an auxiliary tool for closing such a protective tube by means of a closing element, a set comprising an auxiliary tool, a piece of protective tube, and a closing element, as well as an arrangement comprising a protective tube supply and such an auxiliary tool.

Abstract: A fuel pipe for vehicle and ship is described which is equipped by a FIR anion carrier structure with dual-function of both fuel transmitting and fuel saving. The device consists of a fuel pipe covered by a FIR and anion carrier structure which is made from tourmaline or tourmaline and germanium ore powder materials. The powder materials can be either nanoized or non-nanoized materials. The structures of the carrier can be granules set in or on the interior or exterior wall of the pipe, or paste carriers set on the interior or exterior of the pipe. The FIR anion carrier structures can facilitate sufficient combustion by breaking fuel molecular group into pieces, enhance the fuel-saving efficiency, and reduce the percentage of the toxic gas in the exhaust.

Abstract: The drainage element is initially made of cylindrical cross-section and shaped into a rectangular cross-section. A glue is sprayed onto the expanded polymeric elements during fabrication of the drainage element to maintain the rectangular cross-section when dried. The drainage element may be provided with a pipe, perforated or not, and end caps that close off the ends of the drainage element and that serve to connect to like drainage elements.

Abstract: An inner surface of an exhaust gas passage 22 of an EGR valve 11 is coated with Teflon coating 31 and a surface of a valve rod 25 is coated with a film 32 of chromium plating.

Abstract: The invention relates to a device for protecting against pests, especially in piping systems conveying water, utility lines, and/or ambient air, for example within the water delivery system and/or sewer system of buildings. Said invention enables the inside of a piping system to be illuminated in an energy-saving manner, such that any pests that are normally averse to light will recoil from the light source.

Abstract: This invention concerns a pipe section for use in a submerged pipeline system, the submerged pipeline system and the use thereof In particular it concerns a submerged pipeline system for long-distance transport of potable water. More in particular, the present invention concerns a submerged pipeline system being constructed of pipe sections and coupling devices, in which the pipe sections are fitted at each end of the pipe with a cylindrical spigot having dimensions and threading suitable to engage with the bell ends of the coupling devices, wherein the pipe sections are made of an engineering thermoplast and wherein the spigots and the coupling devices are made of a cured resin composition. The invention further concerns the method for preparing the submerged pipeline wherein the pipe sections and the coupling devices are engaged in a bell and spigot joint on a marine assembly location.

Abstract: An arrangement for drawing fluid from a sump (10), comprising a pump (24), a draft tube (12) extending from the pump (24), into the sump (10), said draft tube (12) having an opening within the sump (10) and a canopy defined by roof and side walls surrounding said opening.

Abstract: There are provided: a seamless steel pipe formed from a cylindrical steel material billet through a hot isostatic extrusion step, wherein a depth of a contiguous flaw formed on an inner periphery surface and an outer periphery surface of the steel pipe is 50 ?m or less; a hollow spring obtained by forming a hollow body in a shape of a coil or a bar or a bar with curved part from the seamless steel pipe made of spring steel and applying a surface treatment to the hollow body so that the hollow body has compressive residual stress; and a method for producing seamless steel pipe including: a billet molding step; a first heating step; a hot isostatic extrusion step; a second heating step; an extension step; a third heating step; and a pickling step.

Abstract: A fluid line includes at least one corrugated section having wave peaks and wave troughs and at least one tie rod arranged in at least one portion of the corrugated section and being coupled to plural wave peaks. A method of making the fluid line includes forming at least one corrugated section at an end area or beginning area of a generally cylindrical section of the fluid line.

Abstract: A duct section and system, including a laminated shroud, acting as a secondary duct, for aerospace and other applications, and a method for constructing same. The duct structure incorporates a metallic primary duct tube, with a laminated shroud surrounding the primary duct tube and separated therefrom by an annular gap. The laminated shroud includes a metallic inner layer and a polymeric outer layer. Preferably, the thin metallic layer is a corrosion resistant material such as corrosion resistant stainless steel or titanium. In one embodiment of the invention, the outer polymeric layer is a polyimide material, such as polyimide resin-impregnated fiberglass cloth.

Abstract: In an electric resistance welded steel pipe with excellent weld toughness for a line pipe, the area fraction of minute defects each having a maximum length of less than 50 ?m in a projection plane of an electric resistance welded seam is in the range of 0.035 to 0.000006, and the absorbed energy at ?40° C. measured by a method for an impact test of metallic materials is 100 J or more.

Abstract: An exhaust system has first and second exhaust gas turbochargers for a V-8 internal combustion engine. A first cylinder bank includes four cylinders arranged in series side-by-side, and a second cylinder bank situated opposite the first cylinder bank includes the other four cylinders arranged in series side-by-side. The internal combustion engine has an ignition sequence of a 90° crank angle from one cylinder to the next. The exhaust system includes a first, a second, a third and a fourth exhaust line from the cylinders to the two exhaust gas turbochargers, with two cylinders respectively being assigned to an exhaust line. One exhaust turbocharger is respectively assigned to two exhaust lines. The two cylinders assigned to an exhaust line having an ignition interval of a 360° crank angle. The first and the second exhaust lines assigned to an exhaust gas turbocharger having an ignition sequence displaced with respect to one another by a 180° crank angle.

Abstract: The present invention discloses that the external thermal conductive casing of the supply water flow piping having at least one fluid inlet and at least one fluid outlet is installed with a hollow enclosing structure, wherein besides that the internal space of the hollow enclosing structure for passing through conducting fluid is made with at least two inlet/outlet ports, the remainder is in a hollow closed structure to enclose the piping casing.

Abstract: A duct (10) for transporting a two phase mixture has a length portion of circular cross-section (12) leading, via a transition zone (14) in which the duct cross-section changes from circular to lobed, to a zone in which its cross-section exhibits at least one lobe (16) extending helically around and along the duct. The duct has a cross-sectional area which is substantially constant, or which progressively increases, over the transition zone. The transition from circular to lobed cross-section is alternatively smooth and continuous, and the transition zone occupies a duct length in which the or each lobe becomes relocated by at least one position.

Abstract: A fuel tank comprising at least one fuel vapor accessory articulately coupled with a fuel tubing extending from the fuel tank. The tubing is secured to an inside upper wall of the fuel tank.

Abstract: In ventilation and air-conditioning technology, so-called spiral pipes have to be joined together in a tightly sealed manner at widely differing angles, which is generally carried out by segment bends and pipe sections. An improved, durable seal of folded-seam connections is achieved by a flange-like double fold which is arranged at a first pipe end and which is surrounded on the outside at least in part with positive locking and with a continuous metal seal, by a second double fold at the second pipe end.

Abstract: Irrigation pipe including a pipe having at least a longitudinal row of delivery holes arranged at predetermined distances and communicating with a dripping unit provided inside the pipe, and further having an inlet communicating with the inside of the pipe and an outlet communicating with at least one delivery hole. The inlets or outlets of some or all of the dripping units communicate with the inner space of the pipe or with some or all of the delivery holes through an inlet collecting channel or an outlet collecting channel or segments thereof.

Abstract: The invention relates to a device for transporting a fluid medium, particularly for metering a liquid reducing agent into an exhaust gas system in order to reduce pollutants in an exhaust gas, comprising at least one heated transport line and at least one system component with a heated internal region. The transport line has a line connecting piece, and the system component has a module connecting piece that is directly or indirectly coupled, preferably detachably coupled, to the line connecting piece. The device includes at least one heat conducting sleeve that can be inserted in the line connecting piece and the module connecting piece. The heat conducting sleeve is thermally coupled to the heated transport line and/or the heated internal region in order to transmit heat.

Abstract: An assembly (45) includes a plurality of separate pie-shaped segments (72) forming a disk (70) around a central region (48) for retaining a plurality of tubes (46) in a concentrically spaced apart configuration. Each segment includes a support member (94) radially extending along an upstream face (96) of the segment and a plurality of annularly curved support arms (98) transversely attached to the support member and radially spaced apart from one another away from the central region for receiving respective upstream end portions of the tubes in arc-shaped spaces (100) between the arms. Each segment also includes a radial passageway (102) formed in the support member for receiving a fluid segment portion (106) and a plurality of annular passageways (104) formed in the support arms for receiving respective arm portions (108) of the fluid segment portion from the radial passageway and for conducting the respective arm portions into corresponding annular spaces (47) formed between the tubes retained by the disk.

Abstract: The invention relates to a transport tube for thick materials, in particular for concrete. The transport tube comprises substantially a pressure tube (16) from wear-resistant tube material, which is preferably hardened on the inside, and at least one coupling ring (18?, 18?) which is fixed with a material-to-material fit at the end to the outer face of the pressure tube (16). According to the invention, the coupling ring (18?, 18?) has a first ring part (34) having an inner face of excess dimensions with respect to the outer face of the pressure tube (16), and a second ring part (36) which adjoins the first ring part (34) axially and has an inner cone which deviates in its axial profile from the outer face of the pressure tube (16) as far as an undersize. The coupling ring (18?, 18?) is pressed onto the outer face of the pressure tube (16) with the inner cone (38) of its second ring part (36).

Abstract: A water-conducting household appliance includes a water-conducting line having a line end which is connected in a connecting position to a connecting piece, and a securing element which attaches onto the line end and the connecting piece and holds the line end in the connecting position.

Abstract: A housing for use in high-pressure fluid applications, comprising a first passage defining a first axis (P1) and a second passage defining a second axis (P2), wherein the first and second passages intersect at an opening defined by an intersection at one end of the second passage. When sectioned on a plane normal to the second axis (P2) and not intersecting the first passage, the intersection defines an ellipse (E) in the plane and centred on the second axis (P2), the ellipse having a major axis equal in length to the width (D2) of the intersection and a minor axis equal in length to the height (D1) of the intersection. A wall of the intersection describes a curve in the plane, the curve passing through the points where the major and minor axes of the ellipse (E) meet the perimeter of the ellipse (E), and through points which lie outside the ellipse (E) and which are offset from the ellipse (E) by an offset distance (K).

Abstract: The present invention is directed to a method for manufacturing a heat exchanger in which a Zn thermally sprayed layer is formed on a surface of an aluminum flat tube 2 and then the Zn thermally sprayed tube is combined with an aluminum corrugated fin and brazed to the fin. The Zn thermally sprayed tube 2 is subjected to a Zn diffusion treatment by heating the tube before the brazing to diffuse the Zn in the tube surface, and thereafter the brazing is performed. The heat exchanger manufactured in this way can assuredly have a stable sacrifice corrosion layer and is excellent in corrosion resistance. The heat exchanger can be manufactured efficiently without major facility changes at low cost.

Abstract: The present invention relates to processes for textured pipe manufacturer on the outside and/or the inside surfaces for industrial application and aesthetic.

Abstract: A shaft for sporting equipment comprises an elongate outer wall with a longitudinal bore extending between its first and second ends. An X-shaped web is disposed within the bore and extends along the entire length thereof. The web has four legs that radiate outwardly from a central core and connect to the outer wall. At least one longitudinal opening is defined in the outer wall. The outer wall and web define at least one closed cavity in the shaft. The outer wall, web and opening further define at least one open cavity in the shaft.

Abstract: A tube for a heat exchanger is disclosed, the tube including a plurality of protuberances formed on an inner surface of the tube. The protuberances are arranged in a pattern that maintains a substantially constant cross sectional hydraulic area along a length of the tube.

Abstract: A brake line for a brake system and a hydraulic tubing connector assembly are disclosed. The brake line includes a flare end having an inner wall that includes two or three distinct partially conical surfaces. A sealing area is defined between a run-out cone at the small frustum diameter of the inner wall and a chamfer is defined between the sealing area and the large frustum diameter of the inner wall of the flare.

Abstract: The invention relates to a tubular element (6). The tubular element includes a body (17) having an outer periphery surface (20) with a shape in a cross section view such that adjacent parts of the periphery outer surface (20) along a circumference of the tubular element (6) forms an outer angle of at least 180° in relation to each other and a first channel (7, 9a, b) located in said body (19) adapted to transport a first fluid medium. The tubular element includes an inner space (18) located entirely inside of the outer periphery surface (20) of the body (19), wherein the inner space (18) is adapted to receive at least one conduit element (17).

Abstract: A method and liner system for a pneumatically conveyed particulate conduit are provided. The conduit includes an inlet opening, an outlet opening, and a duct extending therebetween. The system includes a first polygonally-shaped wall member extending from an inlet opening end of the conduit to an opposing outlet opening end of the conduit. The first wall member includes a substantially planar body. The liner system further includes a second polygonally-shaped wall member extending from the inlet opening end of the conduit to the opposing outlet opening end of the conduit. The second wall member includes a substantially planar body having an integrally formed anti-roping bar that extends outwardly from a surface of the second wall member a predetermined height into a flow path through the duct. The liner system further includes a curved polygonally-shaped corner member extending from the inlet opening end of the conduit to the opposing outlet opening end of the conduit.

Abstract: A micropump includes: a tube unit including a tube which has elasticity, and one portion of which is disposed in an arc shape, a plurality of fingers, which are disposed radiating from a direction of a center of the arc shape of the tube, and a guide frame, which holds the tube and the plurality of fingers; and a control unit including a cam, which sequentially presses the plurality of fingers in a direction in which a liquid flows, a drive force transmission mechanism, which transmits a torque to the cam, and a control circuitry, which carries out a control of a motor which drives the drive force transmission mechanism, wherein the tube unit and the control unit are attached stacked one on the other, and are detachable.

Abstract: A cold roll forming method for reducing a diameter of a metal pipe and a metal pipe product having a diameter reduced by such a method are disclosed, wherein the method includes: passing a raw metal pipe through a set of pre-forming rolls so that it can be pre-formed into an intermediate metal pipe having an elliptical, elongated circular or rectangular cross-sectional shape; and then passing the intermediate metal pipe through a set of diameter-reducing rolls disposed on a downstream side of the set of pre-forming rolls so that it can have its outer circumferential length reduced to be smaller than an outer peripheral length of the raw metal pipe, while at the same time being re-formed into a circular cross-sectional shape or any other cross-sectional shape different from the cross-sectional shape of the intermediate metal pipe.

Abstract: Soft, flexible films suitable for human skin contact are required for disposable medical devices. Soft, flexible monolayer elastomer films have been developed that are suitable for human skin contact and provide improved low-temperature flexibility and improved strength to weight ratio over conventional polyvinyl chloride films for medical uses. Embodiments of the flexible monolayer elastomer film include styrene-ethylene-propylene-styrene block copolymers (SEPS), SEPS/polyolefin mixtures, SEPS/polyolefin/ethylene-vinyl acetate (EVA) copolymer mixtures, and EVA/polyolefin mixtures.

Abstract: A fuel hose for a fuel pipeline in an motor vehicle has a multilayer structure including a resin barrier layer having low permeability to fuel, an outer rubber layer laminated on an outer side of the barrier layer and an inner rubber layer laminated on an inner side of the barrier layer and defining an inner surface layer of the fuel hose. The multilayer structure is formed throughout an entire length of the fuel hose. A rubber hardness of the inner rubber layer is higher than a rubber hardness of the outer rubber layer.

Abstract: The present invention proposes an austenitic high Mn stainless steel maintaining a hydrogen embrittlement resistance above that of SUS316L and adapted to a low temperature hydrogen environment by being designed in compositions to comprise, by mass %, C: 0.01 to 0.10%, N: 0.01 to 0.40%, Si: 0.1 to 1%, Cr: 10 to 20%, Mn: 6 to 20%, Cu: 2 to 5%, Ni: 1 to 6%, and a balance of Fe and unavoidable impurities and have an Md30 value of an indicator of an austenite stabilization degree satisfying ?120<Md30<20, where Md30=497-462(C+N)-9.2Si-8.1Mn-13.7Cr-20(Ni+Cu)-18.

Abstract: The invention concerns a method for machining the ends of a metal conduit (1) for forming, when it is abutted with identical conduits, a pipeline pipe, to form at the plane of the parting line (3) with another identical conduit a V-shaped bevel. The invention is characterized in that it consists in cutting the ends of the conduit so that the profile of each end has at least one first cross-section, at the inner edge, designed to constitute part of the root face of the V-shaped bevel and an arc-shaped section linking said cross-section of the profile to a rectilinear section (5) inclined relative to the cross-section of said profile, at the outer edge of the tubular part. The invention is applicable to metal conduits, in particular for pipelines.

Abstract: Embodiments of the present invention provide an internally threaded tube of virtually limitless length that can be easily and reliably constructed. In one aspect, the invention provides an internally threaded tube that includes a tube casing and a coil. A ratio of the length of the tube casing to the inner diameter of the tube casing can be greater than 5:1. The coil can be positioned coaxially within the tube casing. In this position, the coil can exert a radially outward force on the inner surface of the tube casing, which can aid in bonding. A portion of the coil can be specially adapted to be bonded to the tube casing. Methods of creating internally threaded tubes and methods of spirally delivering surgical components with internally threaded tubes are also disclosed.

Abstract: A tubular body for flowing fluid includes an inside diameter surface of the tubular body; and a surface treatment of the inside diameter surface sufficient to cause a viscous interaction with a fluid flowing therethrough and method.

Abstract: The invention relates to novel multimodal polyethylene polymers comprising a low molecular weight fraction and a high molecular weight fraction, and having a MFR5 of greater than 0.10 g/10 min and less than or equal to 0.22 g/10 min, and a density of greater than equal to 952 kg/m3. The invention also relates to uses of the novel polymers in the production of polymeric articles, especially pipes.

Abstract: A fluid flow passage structure and a manufacturing method therefor are provided, in which fluid flow passages can be easily produced employing a simple structure and process, while also being suitable for reducing the weight thereof. Wire members having a predetermined pattern are disposed between a first block member and a second block member. Airtight and fluidtight hermetic fluid flow passages are formed between such members, by forming the first block member, the second block member, and the wire members together as an integral structure.

Abstract: A steel tube with excellent steam oxidation resistance and a method for producing the steel tube are provided. The steel tube contains 9 to 28% by mass of Cr, and the visual coverage of the shot peened area of the inner surface of the steel tube is 70 percent or more. The method for producing the steel tube includes shot peening the inner surface of the steel tube under the condition of a shot stream of not less than 5 kg/minute and satisfying the formula (a) shown below while rotating the steel tube and moving a shot nozzle along the length of the steel tube. The shot peened area (visual coverage) of the inner surface of the steel tube is 70 percent or more; L×r/v?1.5??(a) where L denotes a length (mm) over which shot particles from the nozzle are blasted onto the inner surface of the tube, r denotes the frequency of rotation (rpm) of the steel tube, and v denotes the speed (mm/minute) of nozzle movement along the length of the steel tube.