Abstract: A shear band for a tire includes a first belt layer extending circumferentially around the tire, a second belt layer extending circumferentially around the tire, and a shear band radially interposed between the first belt layer and the second belt layer. The shear band includes a first reinforcing ply radially adjacent the first belt layer, a third reinforcing ply radially adjacent the second belt layer, and a second reinforcing ply radially interposed between the first reinforcing ply and the second reinforcing ply. The first reinforcing ply includes a first flattened, braided tube layer enclosed by a first rubber layer. The second reinforcing ply includes a second flattened, braided tube layer enclosed by a second rubber layer. The third reinforcing ply includes a third flattened, braided tube layer enclosed by a third rubber layer.

Abstract: A high-pressure hose includes: an internal rubber layer; an external rubber layer; reinforcement layers having even number of layers, two or more of the reinforcement layers are provided between the internal rubber layer (10) and the external rubber layer (20), a plurality of reinforcement wires (41a to 44a) are wound around the reinforcement layers in a spiral shape such that winding directions of the reinforcement wires (41a to 44a) alternate; and intermediate rubber layers (51 to 54), each of which is disposed between the reinforcement layers (41 to 44) having even number of layers. A same winding angle (?) is set for the reinforcement wires (41a to 44a) in all levels of the reinforcement layers (41 to 44) having even number of layers, and a winding pitch (P) of the reinforcement wires (41a to 44a) in the reinforcement layers (41 to 44) having even number of layers is set to increase in an order from a side of the internal rubber layer (10) to a side of the external rubber layer (20).

Abstract: A system includes a flexible pipe that includes a liner surrounding a bore of the flexible pipe, a reinforcement layer surrounding the liner, and a shield layer surrounding the reinforcement layer. The system also includes a pipe fitting coupled to an end of the flexible pipe and a securing mechanism at least partially disposed in an opening in at least one of the liner layer, the shield layer, or both of the flexible pipe. The securing mechanism is configured to engage with the reinforcement layer of the flexible pipe when the pipe fitting is coupled to the end of the flexible pipe.

Abstract: An assembly and method for repairing sheathing on a tension member of a post-tensioning tendon may include an outer tube having first and second end portions, a tubular long seal positioned inside the outer tube, the tubular long seal being shorter than the outer tube, first and second seals positioned in the first and second end portions of the outer tube, respectively, and first and second nuts retaining the first and second seals in the first and second end portions of the outer tube, respectively. The assembly may define a longitudinal passage adapted to receive the tension member and the presence of the assembly on the tension member seals the portion of the tension member that is within the assembly. An inner tube may be positioned between the outer tube and the tubular long seal and may radially compress the tubular long seal.

Abstract: Methods of making an implant for medical use, having a body formed of a plurality of single strands of a first material. The body further includes at least one multi-strand of radiopaque material incorporated among the single strands, the multi-strand having at least two side-by-side filaments of radiopaque material that lie substantially contiguous to each other over substantially the entire length of the multi-strand.

Abstract: An ablative material comprises a phenolic resin, a polymeric phosphorylated amide, and a number of fillers. The polymeric phosphorylated amide is in the ratio of between 1 and 10 parts of the polymeric phosphorylated amide per 100 parts of phenolic resin or resin solids, by weight.

Abstract: A flexible hose comprising: a flexible conduit for carrying a pressurized fluid; a flexible inner support for supporting the conduit; and a compression layer surrounding the flexible conduit.

Abstract: A hose coupling for attachment to an end portion of a hose. The hose coupling may include a fitting, a termination attachment, and an end termination. The fitting may be attachable to the end portion of the hose. The fitting may include a ferrule and a stem. The ferrule may be attached to the stem. The termination attachment may be attached to the fitting in opposing relationship to the end portion of the hose. The end termination may be associated with the termination attachment. In some examples, the end termination is threaded, welded, integrally formed, integrally machined, or otherwise associated with the termination attachment.

Abstract: Apparatus and method for maintaining temperature in a sub-sea device, in particular in relation to fluid in the device. A material having a high latent heat on phase change is used to release latent heat to the fluid when the fluid temperature decreases towards a threshold value.

Abstract: A high pressure hose having steel wires with different load elongation properties, which are introduced into the subsequent reinforcement layers of the hose. The difference in load elongation is quantified by the E-ratio of the wire that is equal to the tensile strength divided by the elongation at break. The steel wires of the radially outermost steel wire reinforcement layer have the highest E-ratio, while the radially innermost steel wire reinforcement layer has the lowest E-ratio. The E-ratio of any steel wire reinforcement layer is not lower than the E-ratio of any inner laying steel wire reinforcement layer. The E-ratio of the steel wires can be influenced by either a thermal treatment or by a mechanical treatment. In the mechanical treatment crimps or bends can be introduced into the wire by guiding them through a preforming device.

Abstract: The invention relates to a protective sheath (50) for covering a fluid-transporting pipeline, comprising a flame-proof, non-inflammable layer (52) and a heat insulation layer (54) arranged beneath the non-inflammable layer, the non-inflammable layer consisting only of carbon and the heat insulation layer comprising a knitted fabric, the knitted fabric comprising a plurality of stitches and air trapped within the plurality of stitches such that the heat insulation layer comprises at least 70 vol. % of air. Furthermore, the non-inflammable layer comprises carbon fibers providing 100% coverage in order to protect the heat insulation layer from contact with flames.

Abstract: A reinforced hose includes a tube and a braided sleeve disposed about an outside of the tube. The braided sleeve includes a plurality of bundles. A bundle may be defined as a plurality of threads extending along a same path of a braiding pattern of the braided sleeve. At least one of the bundles includes a metallic thread and a non-metallic thread.

Abstract: The present invention relates to the field of voice signal collecting device, more specifically, to a PCB, a waterproof microphone and a production process thereof. A waterproof microphone, comprising: a first PCB; a second PCB, stacked along two parallel ends of the first PCB; a third PCB, configured with an acoustics through-hole and located at an upper end of the second PCB; wherein, an acoustics cavity is formed at a space surrounded with the first PCB, the second PCB and the third PCB; the third PCB is formed by a plurality of substrate; each of the substrates is configured with an through-hole at same location and with same shape; an opening is formed on the PCB by interconnecting the through-holes; between every two adjacent ones of the substrate, a waterproof membrane is configured. The waterproof performance of the waterproof membrane is better, and the efficiency of the attachment is higher.

Abstract: A fluid line adapted to contain a pressurized fluid imposing loads on the line that vary along its length comprises a tube formed of a fiber reinforced plastic, wherein the fibers are locally tailored along the length of the tube to meet local load requirements. The tube is consolidated within a volumetric chamber having separate, individually controlled chamber compartments for respectively consolidating different segments of the tube.

Abstract: The invention relates to an unbonded flexible pipe with a longitudinal axis and which comprises from inside outwards a carcass formed by metal windings with gaps between neighboring windings, at least one covering tape and an inner sealing sheath of a polymer extruded onto the covering tape. The covering tape is helically wound with a winding direction defining a tape length direction and a tape width direction perpendicular to the tape length direction. The covering tape comprises lengthwise continuous filament yarns arranged in the tape length direction of the covering tape. The covering tape has a thickness direction perpendicular to the tape length direction. The warp yarns have a thickness determined in the thickness direction of the covering tape of about 100 ?m or less, such as of about 50 ?m or less, such as from about 5 to about 25 ?m.

Abstract: An in-flight refueling hose and method. The hose includes an inner braid including pseudoelastic shape memory alloy (e.g., nitinol) wires. These wires undergo a stress induced phase change absorbing energy to dampen oscillations of the hose in use.

Abstract: The invention relates to an unbonded flexible pipe with a length and a longitudinal axis. The pipe comprises an inner sealing sheath defining a bore, a pressure armor layer, an intermediate sealing sheath and a tensile armor. The pressure armor layer comprises at least one elongate metal element arranged with pressure armor gaps and is arranged in an annulus provided between the inner sealing sheath and the intermediate sealing sheath. The tensile armor is arranged on the outer side of the intermediate sealing sheath. Either the intermediate sealing sheath forms a drainage layer or the unbonded flexible pipe further comprises a drainage layer arranged in the annulus. The drainage layer comprises at least one drainage path arranged along the length of the pipe, wherein the drainage path is in fluid communication with the pressure armor gaps. The drainage layer optionally comprises a perforated tube.

Abstract: An assembly for connecting a sprinkler to a branch line of a fire suppression system includes a flexible conduit having one end attached to the branch line. The opposite end is attached to the sprinkler. The conduit is corrugated and has an outer surface with a plurality of crests and troughs. A sleeve co-axially surrounds a portion of the flexible conduit proximate to the sprinkler. The sleeve has a corrugated inwardly facing surface comprising a plurality of crests and troughs spaced so as to fit within the crests and troughs of the conduit and thereby prevent axial sliding motion of the sleeve relatively to the conduit. The sleeve and the flexible conduit are rotatable relatively to one another thereby preventing torque being applied to the flexible conduit through the sleeve.

Abstract: A duct averaging sensor has a plurality of sensor elements contained within a housing. A housing connector selectably joins the housing to a mating terminal connector. The terminal connector may be attached to the outside wall of a duct. The housing connector and terminal connector may be selectably attached and detached, with the housing extending into the inside of the duct. The selectable attachment of the housing to the terminal connector substantially eases installation and maintenance of the duct averaging sensor over prior art duct averaging sensors.

Abstract: A system and method for detecting hose abrasion are disclosed. In one aspect, a hose abrasion monitoring system includes a hose assembly a monitoring circuit. The hose assembly includes a hose having at least one conductive layer and at least one outer insulating cover overlaying the at least one conductive layer. The monitoring circuit is in electrical communication with the at least one conductive layer. Upon abrasion of the at least one outer cover to expose a portion of the at least one conductive layer, the monitoring circuit is configured to detect electrical continuity between the at least one conductive layer and a conductive component external to the hose.

Abstract: The invention relates to a vibration absorbing pipe for a refrigeration compressor including: a corrugated pipe; a first connection pipe having concavo and convex portions; a wire braided net adapted to be fitted to the outer peripheral surfaces of the corrugated pipe and the first connection pipe; and a first compression ring having concavo and convex portions formed on the inner peripheral surface thereof in such a manner as to be compressed against the front end periphery of the wire braided net located just on the top of the first connection pipe, wherein the first connection pipe has an adjusting groove formed on one side outer peripheral surface thereof, so that through the width adjustment of the adjusting groove, a thickness of one side bonding portion of the first connection pipe is the same as a thickness of one side bonding portion of the corrugated pipe.

Abstract: The air conditioning hose of this invention offers an extremely high level of resistance to permeation by refrigerants, including carbon dioxide, as well as good flexibility, high strength, the ability to bend to small radii without kinking, and the ability to be tightly coupled to refrigeration device components in a leak proof fashion. The subject invention specifically discloses a refrigerant hose comprising: (a) a core layer, wherein the core layer is comprised of a thermoplastic polymer, and wherein the core layer includes perforations; (b) a metal foil layer which is situated over the core layer; (c) plastic layer which is situated over the metal foil layer; (d) a rubber layer which is situated over the plastic layer, (e) a reinforcing layer which is situated over the rubber layer; and (f) a cover layer which is situated over the reinforcing layer, wherein the cover layer is comprised of a rubbery polymer.

Abstract: A hose including at least one rubber layer, an outer cover, and at least one barrier layer provided between the rubber layer and the outer cover, wherein the barrier layer is configured to prevent rubber from the rubber layer from reaching the outer cover during curing of the hose. In one embodiment, the rubber layer is the hose inner tube and the outer cover is braided wire. In another embodiment, the barrier layer includes at least one layer of polymeric film. In another embodiment, the hose can include at least one reinforcing layer provided between the rubber layer and the barrier layer. In another embodiment, the hose can include at least one intermediate layer provided between the rubber layer and the barrier layer, where the intermediate layer is formed from a porous material. In another embodiment, the hose can include at least one retaining layer provided between the barrier layer and the outer cover, where the retaining layer is formed from a polymeric material.

Abstract: A tubular structure and method for making a tubular structure are provided, where the tubular structure includes at least one layer of braided strands. In general, at least one portion of the braided strands exhibits a braid pattern of crests and troughs (e.g., a wave pattern, which may include sinusoidal, square, and/or sawtooth waves) along a length of the tubular structure. The wave pattern can be created by rotating the mandrel onto which the tubular structure is braided during the braiding process, such as by angularly oscillating the mandrel about its longitudinal axis or about its transverse axis. As a result, the tubular structures may have increased radial strength, collapse resistance, torque transmission, column strength, and kink resistance. The tubular structures may be used in medical devices, such as stent-grafts, as well as in other medical and non-medical devices, such as in hoses, tubing, filters, and other devices.

Abstract: A catheter includes an inner layer, a braid, an outer layer, and a distal tip. A recessed region having a first side and a second side is formed in a distal end portion of the braid, a length of the first side being longer than the sum of a wire width of a first wire and a distance between two adjacent first wires, a length of the second side being longer than the sum of a wire width of a second wire and a distance between two adjacent second wires. The distal tip is bonded to the inner layer in the recessed region. By providing the recessed region, the number of peaks formed in the distal end portion of the braid is made smaller than that in the existing case.

Abstract: Provided is a flexible tube which is used to load fluid from a floating facility on the sea onto a tanker, which is suitable for transport of cryogenic fluid such as LNG, and which is capable of quickly and reliably detecting leakage of the fluid in the tube. Also provided is a structure for detecting leakage of fluid in a tube. A water impermeable and heat insulating layer is provided on the outer periphery of a heat insulating layer. The water impermeable and heat insulating layer, together with the heat insulating layer, thermally insulates LNG flowing through a corrugated tube from the outside of a flexible tube. Unlike the heat insulating layer, the water impermeable and heat insulating layer is poor in liquid permeability, and fluid such as LNG hardly permeates the water impermeable and heat insulating layer. That is, the water impermeable and heat insulating layer serves as a water impermeable layer between the inside and outside of the water impermeable and heat insulating layer.

Abstract: A flexible hose structure includes at least one inner tubular layer of a first polymeric material defining a longitudinal axis, at least one meshed intermediate reinforcement layer arranged on the inner layer and having at least one first series of yarns defining first chained wales and first courses arranged according to a helical progression with a first pitch of predetermined length, and at least one second series of yarns defining second chained wales and second courses arranged according to a helical progression with a second pitch of predetermined length. The first pitch is a multiple of the second pitch, and the first wales (and the second wales are mutually interlaced with respective meshes not in a chain to exert an independent resistance to radial expansion on the inner layer.

Abstract: A high pressure hose and method of manufacturing the hose is disclosed. The hose is comprised of an elastomer, thermoset rubber inner tube, reinforced with one or more layers of braided or spiralized high tensile strength wire or high tenacity textile yarn and covered with a highly flexible thermoplastic sheath.

Abstract: A flexible hose for conveying fluids and suitable for high temperature environments, the hose comprising a core tube, a thermal insulating layer surrounding the core tube, a metal layer surrounding the thermal insulating layer, and a vented jacket surrounding the cover layer. The thermal insulating layer may be a fibrous material such as a silica fiber. The metal layer may also be a chemical resistant layer and be thermally stable up to at least about 550° F. The vented jacket may be a wire braid having interstices therein and formed from a corrosion resistant material.

Abstract: Flexible reinforced rubber hose adapted for conveying fluids under low temperatures and high pressures. The hose includes a inner tube formed of an acrylonitrile butadiene rubber (NBR) or other low temperature rubber compound having an elastic modulus of not greater than about 8.4 MPa (1200 psi), and an outer jacket formed of a chloroprene rubber (CR) or other low temperature rubber compound having a durometer of not greater than about 75 Shore A.

Abstract: A durable, semi-rigid, flexible duct including a pair of coaxial sleeves, namely an inner sleeve and an outer sleeve disposed parallel to and about the inner sleeve and a resilient wound element disposed between the sleeves. Each of the inner sleeve and the outer sleeve constitutes an aluminum foil ribbon. The wound element imparts corrugations to the two sleeves, such that the duct is extendible between a compacted configuration suitable for storage and for shipping and an extended configuration suitable for installation in a gas transport arrangement. Closely and evenly-spaced ridges that are situated in between the corrugations, add rigidity and durability to the duct. Both the inner sleeve and the outer sleeve are of a predetermined thickness rendering the duct substantially rigid when in an extended configuration and enabling the duct to maintain its substantial rigidity upon extension from a compacted configuration.

Abstract: A hose for use in bio-pharmaceutical applications includes an innermost tubular layer made from a fluoropolymer material. The tubular layer has an inner, relatively smooth and pure surface that defines an opening for transfer of various media. A layer of silicone is disposed next to an outer surface of the innermost tubular layer through use of, for example, an extrusion method. The outer surface of the tubular layer may first be modified by various treatments or chemicals to facilitate the adhesion of the silicone layer thereto. The silicone material may be solid or foamed. A reinforcement layer may be disposed adjacent to an outer surface of the silicone layer. The reinforcement layer may be formed of a wire braid having gaps. An outer jacket of silicone may be attached to the reinforcement layer and to the inner silicone layer through the gaps in the reinforcement layer.

Abstract: A hose comprising an inner tubular structure, an outer tube and an insulation layer, wherein the inner tubular structure comprises a tubular body disposed between inner and outer gripping members, the tubular body including a sealing layer, and being formed of a material capable of withstanding cryogenic temperatures, wherein the outer tube comprises a rubber layer and a reinforcing layer disposed around the rubber layer, wherein the insulation layer is either incorporated in the inner tubular structure and/or is disposed between the inner tubular structure and the outer tube.

Abstract: A semi-rigid, flexible duct including a pair of coaxial sleeves, namely an inner sleeve and an outer sleeve disposed parallel to and about the inner sleeve and a resilient wound element disposed between the sleeves. Each of the inner sleeve and the outer sleeve constitutes an aluminum foil ribbon. The wound element imparts corrugations to the two sleeves, such that the duct is extendible between a compacted configuration suitable for storage and for shipping and an extended configuration suitable for installation in a gas transport arrangement. Both the inner sleeve and the outer sleeve are of a predetermined thickness rendering the duct substantially rigid when in an extended configuration and enabling the duct to maintain its substantial rigidity upon extension from a compacted configuration. Optionally, at least one of the sleeves further includes a second, plastic layer bonded to the aluminum foil ribbon layer.

Abstract: A hose or duct that is comprised of a rubber, plastic, metal, woven or non-woven textile or composite material is outfitted with a luminescent exterior member. The luminescent exterior member includes a luminescent material. The luminescent exterior member can be incorporated into the manufacture of the hose, or added to and/or around the exterior of the hose after manufacture of the hose. The luminescent exterior member may be wound around the hose in a spiral manner or may run longitudinally along a length of the hose in a single line or multiple lines. The luminescent exterior member may be fixably coupled to the hose with adhesive or molecularly bonded or with an attachment mechanism or the luminescent exterior member may be externally spiraled as a rigid spiral sleeve and thereby removable from the hose and may be reusable.

Abstract: The hose includes an outer jacket which includes warp and weft fibers made of Vectran®. The process for making the hose, includes: forming an inner liner and coating the exterior thereof with adhesive; weaving, in a twill weave pattern, Vectran® yarn, in a repeating 2-4-2-4-2 pattern in both the warp and the weft directions; extruding polyurethane onto the woven vectran yarn, the polyurethane extending into pillars between the warp and weft yarn, forming an outer liner; inserting the inner liner coated with adhesive within the outer liner; and, pressurizing the inner liner with steam expanding the inner liner and the adhesive into engagement with the Vectran® yarn and polyurethane pillars of the outer liner.

Abstract: The invention relates to an aluminum alloy product containing, in wt. %: Si 0.2 to 1.4; Fe+Mn 1.1 to 1.8; Cu 0.15 to 0.5; Mg<0.2; Ti<0.2; Zn<1.5; impurities<0.05 each, <0.2 total, balance aluminum. This aluminum alloy product has high resistance to internal pressure when used as core layer for welded multilayer tubing. The invention relates also to a method of manufacturing such alloy product, and the use of such alloy in welded multilayer tubes.

Abstract: In order to prevent a vehicle fitted with braking assistance and trajectory correction devices and having a highly placed center of gravity from overturning in a bend when there is a sudden turn of the steering wheel at the same time as a sudden braking action, a hydraulic braking circuit comprising a hydraulic pump (3) which sucks a fluid contained in a reservoir (3) through a master cylinder (1), is provided with a bladder (10). The bladder, placed between the master cylinder and the hydraulic pump, reduces the duration of flow of the hydraulic fluid to the pump, ensuring a sufficient suction pressure at the entrance of the pump in order to cram the brake and cause the wheel having the most pressure to skid.

Abstract: Transport pipe for high viscosity materials, in particular for concrete. The transport pipe includes an inner pipe (10) made of an abrasion-resistant plastic, at least one metallic joint element (12), as well as a reinforcing jacket (14) which envelops at least the internal pipe. In order to ensure a reliable and enduring joint between inner pipe and joint element, it is proposed in accordance with the invention, that the radially projecting collar of the joint element is defined by a ring-shaped end face (20) and by a thereto joined ring step (22) extending radially towards the inside of the pipe and recessed axially from the ring-shaped end face, and wherein the plastic material of the inner pipe (10) engages in the ring step (22) from the inside of the pipe.

Abstract: The invention relates to a flexible pipe for transportation of fluids and gasses, e.g. useful in water transportation, and in offshore transportation of crude oil e.g. from seabed to an installation or between installations. The flexible pipe of the invention comprises a new type of armouring layers which is made from a combination of one or more profiled wires and one or more metal strips. A folded strip is an endless unit with at least one fold and a width which in unfolded condition is at least 6 times its thickness, such as at least 10, such as at least 15, such as at least 25 times its thickness or even up to 100 or 500 times its thickness. A profile is a preshaped non-folded cross sectional profile. The profile may preferably have a width of less than 6 times its thickness. The term ‘endless’ is used to indicate that the tapes and profiles are very long compared to their other dimensions.

Abstract: A hose for use in bio-pharmaceutical applications includes an innermost tubular layer made from a fluoropolymer material. The tubular layer has an inner, relatively smooth and pure surface that defines an opening for transfer of various media. A layer of silicone is disposed next to an outer surface of the innermost tubular layer through use of, for example, an extrusion method. The outer surface of the tubular layer may first be modified by various treatments or chemicals to facilitate the adhesion of the silicone layer thereto. The silicone material may be solid or foamed. A reinforcement layer may be disposed adjacent to an outer surface of the silicone layer. The reinforcement layer may be formed of a wire braid having gaps. An outer jacket of silicone may be attached to the reinforcement layer and to the inner silicone layer through the gaps in the reinforcement layer.

Abstract: The present invention generally relates to flexible hose articles and methods. Some embodiments include hoses that can be reversibly bent and/or shaped. Furthermore, some embodiments can comprise methods for making and/or using such hose articles.

Abstract: The disclosure pertains to installing a plurality of tear cords between a metal tube and a protective jacket. The multiple cords facilitate ease of removal of the protective jacket by creating a panel of the jacket that is detached from the remainder by pulling on the multiple tear cords. The resulting widened space can be used to remove the tube from the remaining protective jacket. The jacketed tubes may be used in a hydrocarbon production downhole well bore. The tubes may be used to furnish hydraulic fluid or chemicals into the well bore. The contents may be pressurized or under vacuum. The jacketed tubes are hermetically sealed. The tubes, which may be 1 inch in diameter, are joined using compression fittings. Tear cords are used to facilitate removal of the protective jacket without damage to the tube surface thereby facilitating the placement of compression fittings and maintaining the integrity of the tube wall.

Abstract: A chlorinated rubber composition including a chlorinated rubber, a metal deactivator, an acid acceptor, and an antioxidant respectively at a particular amount is provided. The chlorinated rubber composition is capable of providing a chlorinated rubber composition which can be used in producing a hose exhibiting excellent resistance to degradation by zinc together with the sufficient physical properties such as resistance to thermal aging, oil resistance, and adhesion, as well as a hose produced by using such chlorinated rubber composition for the rubber layer.

Abstract: A flexible pipe for fluid transport especially in offshore application has a first extruded tube having nylon and a first layer having aromatic polyamide disposed about the first tube. A plurality of rings composed of stainless steel are disposed about the first layer. Each of the rings has first ends with circumferential lips and second ends with circumferential grooves interconnecting together. These lips and grooves permit adjacent ones of the rings to tilt relative to one another by about 1.5-degrees for every 4-inches of flexible pipe. A second extruded tube having fiberglass is disposed about the plurality of rings, and an exterior jacket having nylon is disposed about the second tube.

Abstract: The multi-layer tape wrapped tubing for effectively impeding the diffusion of vapor is made in a continuous in-line process and has three distinct layers: an inner tubing layer, a middle diffusion barrier layer and an outer jacketing layer. The inner tubing layer comes into contact with liquid and vapor. Vapor that might ordinarily diffuse through the tubing is impeded by the diffusion barrier layer. The diffusion barrier layer is a laminate comprising a diffusion barrier film with a very low vapor diffusion rate sandwiched between layers of thermoplastic. The diffusion barrier layer is wrapped around the inner tubing one or more times. The outer jacket layer is a polymeric jacket which is extruded onto the diffusion barrier layer wrapped inner tubing.

Abstract: The invention relates to an end hose for discharge of thick substances, particularly of liquid concrete. The end hose (12) can be connected with its entry-side end to a pressure feed line (14) of a mobile thick-matter pump, and has a discharge opening (16) for the thick substances at its exit-side end, and consists of a flexible material. In order to prevent the end hose (12) from kicking out when blockages are loosened, it has at least two hose parts (26, 28) having different bending rigidity, connected with one another at a transition point (30).

Abstract: A corrugated hose pipe assembly has a corrugated pipe that is surrounded by an elastomeric high-pressure hose. The ends of the high-pressure hose are grasped and fixed by connectors. The connectors each have a pipe piece (210, 220) which is fitted with a circumferential, radially projecting stationary nipple stop (211, 221) at the axial end thereof facing the corrugated pipe. A hose nipple (310, 320), which is positively mounted on each pipe piece (210, 220), is provided with a radially protruding, circumferential hose stop (311, 321) at the end of the hose nipple (310, 320).

Abstract: A conduit pipe for conveying media, having a core pipe made of a copper alloy and a jacketing made of a plastic material from the group of the polyolefins having functional groups. The ratio between the thickness of the jacketing wall and the thickness of the core pipe wall ranges between 2:1 and 14:1, while the ratio between the thickness (D) of the core pipe wall and its inside diameter (ID) ranges between 0.01 and 0.05.

Abstract: A hose comprising a tubular body of flexible material arranged between an inner and an outer helically wound wire. The hose further comprises an elongate member having opposing longitudinal edges, the elongate member being helically wound around the tubular body such that the opposing longitudinal edges of the layer are in an adjacent or overlapping arrangement, wherein each longitudinal edge includes a formation capable of interengaging with a cooperating formation on the opposing longitudinal edge, wherein the elongate member is provided at least one reinforcing member which extends along the longitudinal axis of the elongate member.