Abstract: An air conduit for a respiratory therapy device comprises a first end, a second end, and a tube portion, wherein the tube portion comprises a tube wall and an auxiliary structure, such as a rib. The air conduit may deliver a flow of air from a respiratory therapy device or a humidifier to a patient interface. The air conduit may comprise a plurality of auxiliary structures, some of which may consist of a polymeric material, and some of which may comprise a polymeric material and an electrical conductor. An auxiliary structure may be a helical rib extending across a length of the tube portion.

Abstract: One aspect of the invention provides a system including: a length of energy-dissipative tubing; a first sealing device coupled to a first end of the length of energy-dissipative tubing; and a second sealing device coupled to a second end of the length of energy-dissipative tubing. Exposure to one or more selected from the group consisting of: fault currents or lightning strikes at an exposure point along the length of energy-dissipative tubing will produce arcs at the exposure point and at least one of the first end and the second end.

Abstract: Techniques for implementing a pipe segment that includes a tubing inner barrier layer that defines a pipe bore through the pipe segment, a venting tubing annulus implemented around the tubing inner barrier layer, in which the venting tubing annulus includes a first solid material implemented to define a venting fluid conduit, a tubing intermediate barrier layer implemented around the venting tubing annulus, a reinforcement tubing annulus implemented around the tubing intermediate barrier layer, and a tubing outer barrier layer implemented around the reinforcement tubing annulus. The reinforcement tubing annulus includes a second solid material that is different from the first solid material and is implemented to define a reinforcement fluid conduit. Additionally, the venting fluid conduit facilitates venting fluid that permeates from the pipe bore through the tubing inner barrier layer out from the pipe segment before the fluid contacts the second solid material in the reinforcement tubing annulus.

Abstract: A method for repairing in-ground tunnel structures including the steps of: a) cleaning the structure to be lined; b) preparing a sheet of composite liner onto a roller; c) applying resin to the wall of the tunnel; d) dispensing said sheet into said resin using said roller and e) bedding the liner composite into the applied resin. The process can then be repeated along the length of the tunnel in a sheet by sheet fashion.

Abstract: A method and apparatus are disclosed. The method includes the steps of providing an elongate sheet having a uniform thickness and a first and further spaced apart long edge, to a first pair of a plurality of spaced apart pairs of opposed forming roller elements, and via the pairs of roller elements, progressively forming a cross-sectional profile in the sheet that comprises a body portion comprising a folded central region of the sheet and a first and further wing portion that each extend away from the body portion and terminate at a respective long edge of the sheet, and securing adjacent regions of the wing portions and/or opposed regions of the body portion together thereby providing a windable elongate tape element having laterally immobilised wing portions.

Abstract: The disclosure relates to medical tubes and methods of manufacturing medical tubes. The tube may be a composite structure made of two or more distinct components that are spirally wound to form an elongate tube. For example, one of the components may be a spirally wound elongate hollow body, and the other component may be an elongate structural component also spirally wound between turns of the spirally wound hollow body The tube need not be made from distinct components, however. For instance, an elongate hollow body formed (e.g., extruded) from a single material may be spirally wound to form an elongate tube. The elongate hollow body itself may in transverse cross-section have a thin wall portion and a relatively thicker or more rigid reinforcement portion. The tubes can be incorporated into a variety of medical circuits or may be employed for other medical uses.

Abstract: The present invention relates to a flexible pipe comprising a mechanical reinforcement element (4) and a pressure sheath. Mechanical reinforcement element (4) comprises at least one metallic tensile armour layer (6) and at least one composite tensile armour layer (7). Composite tensile armour layer (7) is arranged outside metallic tensile armour layer (6). Separation means (8) are provided to separate composite tensile armours (7), while maintaining a radial clearance and a circumferential clearance for composite tensile armours (7).

Abstract: A flexible hose assembly includes a flexible fluid permeable annular carcass arrangement having an inner and an outer diameter formed about a central axis. The carcass arrangement provides skeletal strength to the hose assembly against radial forces. The carcass arrangement has a plurality of interconnecting strips forming convoluted joints between the strips. The convoluted joints have an inner lip and an outer lip at opposite ends of the strips; and the carcass further comprises a plurality of channels formed along an entire length of first and second sides of the strips, the channels creating at least one fluid passage in each of the convoluted joint forming the carcass for the passage of fluids between the inner and outer diameters.

Abstract: Deflectable guide catheters and methods, including methods for using deflectable guide catheters to perform transnasal procedures within the ear, nose, throat, paranasal sinuses or cranium. Some deflectable guide catheters of the present invention comprise a substantially rigid tube, a helical spring attached to and extending from the distal end of the substantially rigid tube, a tubular plastic inner jacket, an outer plastic jacket substantially covering at least the helical spring member. The spring member is deflectable to cause the distal portion of the guide catheter to deflect to a curved configuration. In embodiments for transnasal use the deflectable guide catheter may have a length of less than 25 cm.

Abstract: A low pressure duct configured to channel a gas within a structure includes a tubular body formed from a polymer foam material, and a first plurality of strands adhered to a surface of the tubular body along a plurality of paths. The plurality of paths includes a first set of paths oriented longitudinally along the tubular body. The first set of paths are spaced apart from each other around a circumference of the tubular body. The plurality of paths also includes a second set of paths oriented circumferentially around the tubular body. The second set of paths are spaced apart longitudinally along the tubular body.

Abstract: A thin ribbon spirally wound polymer conduit and method of forming, wherein a helical reinforcing bead is interposed adjacent overlapping layers of ribbon. Further, a method of continuously forming spirally wound conduit wherein a sacrificial layer, preferably having a different base polymer to that of the conduit, is first applied to the former before the conduit is formed overtop.

Abstract: A flexible ventilation duct production method includes forming an inner layer using at least one of aluminum PET, polyester, metalized OPP, metalized polyester and PVC; forming an insulation layer comprised of rubber, polyethylene liners, polyester fibers or similar insulation materials; assembling a steel wire taking shape from being spirally wound around a cylinder; forming an outer layer using at least one of aluminum PET, polyester, metalized OPP, metalized polyester and PVC; and laminating by being wound to a constantly rotating cylindrical shaft in a certain order to form an integrated, holistic structure between all the factors, which is constantly rotated around its own axis in strip plates and is constantly fed to the mentioned cylindrical shaft, by meanwhile providing complete lamination with the applied chemicals.

Abstract: An elongate tape element (508), a flexible pipe body and method of producing a flexible pipe body are disclosed. The tape element has a cross-sectional profile comprising a body portion (510) for being positioned between collapse resistant tape windings such that each body portion lies at least partially in a gap (512) between adjacent collapse resistant tape windings (501); and at least one wing portion (516) extending from an end region of the body portion (510), the at least one wing portion (516) configured to span the gap (512) and respectively abut with a radially inner surface of an adjacent collapse resistant tape winding (501).

Abstract: Ducts manufactured by depositing one or more runs of material in a helix, a plurality of conjoined planar spirals, and a conjoined plurality of conical spirals.

Abstract: The present invention relates to pore-free polymer tubes and prefers bio-resorbable pore-free polymer tubes prepared from at least one polymer filament, wherein the at least one polymer filament has a diameter of ?50 ?m and the at least one polymer filament is melted pore-free, as well as the methods to prepare these polymer tubes, which are especially useful for the production of stents.

Abstract: A non-corrugated cable 10 with a hollow core 20, suited for subsea operations at big sea depths and corrosive environments has a core 20 with a tube shaped non-metallic material for withstanding corrosion. A first inner armoring layer 30 is wounded onto the core 20, and at least a second armoring layer 40 is wounded onto the first inner armoring layer 30. Each armoring layer is laid counter-helically on each other for providing radial reinforcement of the core 20. The first inner armoring layer 30 has a smaller diameter of its wires than the second armoring layer 40. An outer protective non-corrosive sheath 50 is covering said armoring layers.

Abstract: A flexible tube used as a part of an insertion section which defines a central axis of an insertion apparatus to be inserted into a hole, the flexible tube includes: a helical tube comprising a closely-wound region including a concave-convex portion which is provided on each of a pair of edges of a strip-shaped member elongated along a longitudinal axis, and which alternately includes convex portions and concave portions on the concave-convex portion, wherein, in a state where the strip-shaped member is spirally wound, the convex portions of the concave-convex portions facing each other along the central axis are compressed to each other; and a cylindrical outer tube which covers an outer surface of the helical tube.

Abstract: A multi-purpose vascular device defines a lumen allowing fluid communication there through and has a coil with a side of the coil winds having solid physical connections between the coil winds to prevent the connected coil wind side from expanding following the application of force by an actuating member which causes the connected coil winds to have a predetermined configuration in an unstressed state. The application of longitudinal force causes the unconnected coil winds to expand, resulting in the vascular device assuming a different configuration.

Abstract: The invention relates to an elongate reinforcement element for reinforcing an unbonded flexible pipe, a method of producing the elongate reinforcement element and an unbonded flexible pipe comprising the elongate reinforcement element. The reinforcement element comprises a plurality of elongate armor strips and an elongate support element comprising a channel, wherein the plurality of elongate armor strips are arranged in the channel of the elongate support element. Preferably the elongate armor strips are arranged to be superimposed in the channel and the plurality of superimposed elongate armor strips are displaceable in relation to each other upon bending of the elongate reinforcement element.

Abstract: A tip rod made of a fiber reinforced resin has a solid structure at least at its distal end portion. The tip rod is formed by dispersing reinforcement fibers in a matrix resin, molding the matrix resin that contains the reinforcement fibers into a prescribed shape, and heating the molded matrix resin that contains the reinforcement fibers to be cured. An average diameter of the reinforcement fibers is 3 to 15 ?m, an average length of the reinforcement fibers is 0.5 to 10 mm, a content of the fibers dispersed in the matrix resin is 3 to 50 wt %. The solid structure of the tip rod includes an outer layer, an intermediate layer, and an inner layer in which the reinforcement fibers are directed in a different direction for each layer. Alternatively the structure may include the outer layer and the inner layer.

Abstract: Ducts manufactured by depositing one or more runs of material in a helix, a plurality of conjoined planar spirals, and a conjoined plurality of conical spirals.

Abstract: A casing section comprising: a body comprising a wall; a window, wherein the window is an opening in the wall of the body; and a covering, wherein the covering: (A) is composed of a composite material; (B) is located on the outer surface of the body; (C) covers the window; and (D) spans at least a sufficient distance beyond the perimeter of the window such that the casing section has a desired pressure rating at the location of the window. A method of creating a lateral wellbore in a subterranean formation comprising: introducing a casing string into a wellbore, wherein the casing string comprises at least one casing section; drilling through at least a portion of the covering from the inside of the casing string to expose the window; and forming the lateral wellbore adjacent to the exposed window.

Abstract: Curvilinear ducts manufactured by depositing one or more runs of material in a conjoined helix, a conjoined plurality of conjoined planar spirals, and a plurality of conjoined conical spirals.

Abstract: The invention relates to a method for the continuous production of laminates made of at least two fiber bands made of fibers which are embedded unidirectionally in a plastic material matrix. Likewise, the invention relates to laminates which are produced in this way and can have a shape memory. The laminates according to the invention are used for local reinforcement of injection molded parts.

Abstract: A tip rod made of a fiber reinforced resin has a solid structure at least at its distal end portion. The tip rod is formed by dispersing reinforcement fibers in a matrix resin, molding the matrix resin that contains the reinforcement fibers into a prescribed shape, and heating the molded matrix resin that contains the reinforcement fibers to be cured. An average diameter of the reinforcement fibers is 3 to 15 ?m, an average length of the reinforcement fibers is 0.5 to 10 mm, a content of the fibers dispersed in the matrix resin is 3 to 50 wt %. The solid structure of the tip rod includes an outer layer, an intermediate layer, and an inner layer in which the reinforcement fibers are directed in a different direction for each layer. Alternatively the structure may include the outer layer and the inner layer.

Abstract: A low-cost method of manufacturing an all-composite composite torque tube includes winding fiber tow around a cylindrical mandrel and a plurality of eyelet forms held by an end fixture on the mandrel, whereby a flanged end coupling is formed. The method may include the use of a pre-woven composite fiber end sleeve configured to define the flanged end coupling. The wound fiber, and the end sleeve, are cured together in a single step. Metal eyelets may be installed in the bolt holes.

Abstract: Disclosed is a method of forming an article from a unidirectional (UD) tape comprising a continuous unidirectional fiber impregnated with polymer resin. The method includes winding a continuous section of cold UD tape to form a closed loop preform (38) comprising a plurality of stacked layers while discretely welding and consolidating the wound preform by heating and applying pressure.

Abstract: A phenolic resin for a wet friction material of the present invention is a phenolic resin used in a wet friction material and a bisphenol-modified phenolic resin modified with bisphenols. In addition, a wet friction material of the present invention is formed using the phenolic resin for a wet friction material.

Abstract: This disclosure relates generally to corrugated pipe, and more particularly to corrugated pipe with an outer wrap. In one embodiment, a pipe includes an axially extended bore defined by a corrugated outer wall having axially adjacent, outwardly-extending corrugation crests, separated by corrugation valleys. The pipe also includes an outer wrap applied to the outer wall. The outer wrap may include fibers and plastic. The outer wrap may span the corrugation crests producing a smooth outer surface.

Abstract: Methods and apparatus for processing flexible graphite sheet material involve patterning the material, on at least one major surface, prior to further processing of the material such as densification, lamination, folding or shaping into three-dimensional structures. For densification and lamination, the patterning is selected to facilitate the removal of air from the flexible graphite sheet material during the densification and lamination process. For folding or shaping, the patterning is selected to render the graphite sheet material more flexible. In some embodiments, methods for increasing the through-plane conductivity of flexible graphite sheet material are employed. Integrated heat removal devices include sheets of graphite material that have been selectively patterned in different regions to impart desirable localized properties to the material prior to it being shaped or formed into an integrated heat removal device.

Abstract: The present invention provides a tubular article (10), such as may be used as an oil and gas pipeline, having a longitudinal axis X comprising inner and outer separate strips (12, 14) of spirally wound overlapping material each having a longitudinal axis L and first and second edges (16, 18, 16?, 18?), in which each strip (12, 14) comprises two or more longitudinally extending ridges (20, 22, 20?, 22?), each of which extends along said longitudinally extending axis L in parallel to each other and in which said ridges (20, 22, 20?, 22?) each comprise asymmetric ridges having a leading edge (24, 24?) forming a contact portion (28, 28?) and wherein said leading edges (24, 24?) are each in contact with each other and further comprising a non-contact trailing edge portion (26, 26?) which are spaced from each other by an amount G.

Abstract: An electronic apparatus includes: a first case and a second case assembled to each other; a first cable that couples a first component provided in the first case and a second component provided in the second case; and a second cable that couples a pair of members provided in the first case, and provided with a bent section at an intermediate part of the second cable in a longitudinal direction thereof, the second cable supporting the first cable inside the bent section.

Abstract: The present invention relates to electrical conductors for electrical transmission and distribution with pre-stress conditioning of the strength member so that the conductive materials of aluminum, aluminum alloys, copper, copper alloys, or copper micro-alloys are mostly tension free or under compressive stress in the conductor, while the strength member is under tensile stress prior to conductor stringing, resulting in a lower thermal knee point in the conductor.

Abstract: A device (110) and a method for locally repairing or reinforcing an elongate body (100), said device (110) being intended for winding one or a plurality of layers of pre-impregnated polymerizable strip around the elongate body (100), said device (110) comprising: —releasable means (112, 113) of attachment around the elongate body (100), —means for the rotational movement of support structure (125) around the means (112, 113) of attachment, —means for the longitudinal movement of a spool (135) of a pre-impregnated polymerizable strip relative to the support structure (125), said support (125) comprising means for limiting the movement of the spool to a predetermined path, said spool (135) being unwindable when it is subjected to a given tension, —means for bringing the spool (135) into rotational and translational movement around the elongate body (100), causing the pre-impregnated polymerizable strip to be wound around said body.

Abstract: An intercooler pipe that improves noise, vibration, and harshness (NVH) performance is provided. The intercooler pipe includes a plurality of bellowses, wherein an exterior of the bellows is made of a soft material and an inside thereof is made of a hard material to make a storage modulus of the inside of the bellows greater than that of the exterior thereof. In addition, the intercooler pipe improves the durability of an intercooler pipe.

Abstract: A flexible pipe body and method of producing a flexible pipe body are disclosed. The flexible pipe body includes a layer comprising a tape element formed from at least a first sub-layer sandwiched between two further sub-layers, wherein the first sub-layer has a lower density than at least one of the two further sub-layers.

Abstract: Push-cables and associated apparatus and systems are disclosed. In one embodiment, a push-cable assembly for use with a pipe inspection system may include a push-cable element having a proximal end and a distal end, with a spring assembly having varying flexibility coupled to or near the distal end. The spring assembly may include an outer coiled spring having a proximal and a distal end, and an inner coiled spring nested at least partially within the outer coiled spring. A camera head and/or other elements such as a cutting or jetting apparatus may be coupled at or near the distal end.

Abstract: A polymer tube for conducting a pipe buried underground, having a plurality of RFID tags arranged at regular intervals along the tube and a protective layer of the RFID tags.

Abstract: A flexible pipe body and method of manufacturing a flexible pipe body are disclosed. The flexible pipe body includes a fluid retaining layer for preventing ingress of fluid into the flexible pipe body from an environment outside of the flexible pipe body; and a fibre element arranged generally along a longitudinal axis of the fluid retaining layer.

Abstract: A helically formed flexible duct primarily directed to applications in ducted heating, ventilating and air conditioning, of three dimensions including a predetermined length, an inner diameter reinforced with a helically laminated wire member between self laminating substrate, an outwardly radial compartment formation constructed with strip portions of substrate material which form gaps to accommodate outwardly expanding radial dimensions and containing an insulating member, and an outer covering member delivered to a larger radial circumference at an applied circumferential speed exceeding the circumferential speed of the inner diameter substrate tube formation rate.

Abstract: A flexible pipe body and a method for manufacturing flexible pipe body is disclosed. The flexible pipe body includes an internal pressure sheath, at least one insulating layer comprising a mesh layer comprising a plurality of pockets and an outer sheath.

Abstract: A flexible hose (1) has at least two textile reinforcement inlays or inserts (5, 6, 7) and an inner layer (2) made of elastomeric material. The flexible hose can assume various curvature geometries and, on the other hand, is still pressure-resistant because a textile reinforcement inlay (5) made of a peripherally closed, tubular knitted or woven fabric is applied to the elastomeric inner layer (2). A textile layer (6), which is rubber-coated on both sides, is wound as a further textile reinforcement inlay onto the tubular knitted or woven fabric (5).

Abstract: A flexible pipe body and method of producing a flexible pipe body are disclosed. The flexible pipe body includes an inner fluid retaining layer; an armour layer provided radially outwards of the inner fluid retaining layer; and a buoyancy layer including a plurality of discrete elongate buoyancy elements provided radially outwards of the fluid retaining layer wound at a helical pitch angle equal to or more than 0 degrees and less than about 85 degrees to the longitudinal axis of the flexible pipe body.

Abstract: A composite pipe is disclosed. The composite pipe includes a thermoplastic inner layer and a tape layer. The tape layer is exterior to and bonded with the thermoplastic inner layer. The composite pipe also includes a protective layer formed exterior to the tape layer.

Abstract: A flexible pipe body and method of producing a flexible pipe body are disclosed.

Abstract: An expandable hose is provided formed of a sidewall formed of a spirally wound flexible member which defines an axial passageway surrounding a center axis of the formed hose. Both side edges of the flexible member in the spirally wound position are engaged with a cap member which provides a skeletal structure to maintain the axial passageway open and to bias the hose back to a collapsed length from the extended length. A fold formed in the spirally wound flexible member allows for increased distance between the two side edges and an increased maximum extended length. A telescopic pole engaged with the formed hose provides an improved extendable vacuuming tool.

Abstract: An elongate tape and method of producing an elongate tape are disclosed. The tape is suitable for forming a helically wound layer of interlocked windings in a flexible pipe body, and is configured for interlocking with adjacent windings, wherein the tape has a cross-sectional profile including: a first surface that in use forms a radially inner surface of the helically wound layer; a further surface, in use forming a side wall extending radially outwards, away from the first surface, and for forming a contact surface with a region of an adjacent winding; and a transition surface joining the first surface and further surface, wherein the transition surface comprises a curved surface, and wherein the curved surface has a larger radius of curvature in a region proximate the first surface than in a region proximate the further surface.

Abstract: The invention concerns an unbonded flexible pipe for subsea transportation of fluids, the pipe comprises from inside and outwards a carcass, an inner sealing sheath, a pressure armor, and a tensile armor. The pressure armor comprises at least one helically wound elongate and interlocked element in the form of a strip with a cross-sectional profile comprising a planar mid section and a first and a second interlocking edge configured to have an angle to the planar mid section and to protrude in a direction away from the inner sealing sheath to provide a channel between the first and the second interlocking edges, the pressure armor further comprises at least one helically wound elongate and non-interlocked elongate element where windings of the non-interlocked elongate element are placed at least partly in the channel such that displacement with respect to the helically wound elongate and interlocked element is limited by the first and the second interlocking edges.

Abstract: Low or near zero fluid permeation hose for petroleum and other chemical transfer applications. The hose includes an inner tube formed of a vulcanized rubber, and a barrier layer of a strip of a fluoropolymer of other polymeric material resistant to fluid permeation. The strip is spiral wound about the longitudinal axis of the hose.

Abstract: A highly practical tube body for a pressure transducer is provided which has excellent pressure resistance, corrosion resistance, and tensile strength; which can be manufactured at low cost in comparison with cases of using stainless steel; and which makes it possible to keep inside diameter precision high. In this tube body for a pressure transducer, the pressure applied to the interior is varied periodically, and a seal layer (2) is provided to the internal peripheral surface of a tube body (1) made of a fiber-reinforced resin composed of fibers wound in layers.