Abstract: The shaped article consists of a) from 5 to 95% by weight of a molding composition A made from at least one thermoplastic polyamide, copolyamide or blends of these as component A1, fillers and/or reinforcing materials, if desired, as component A2, impact modifiers as component A3 and other additives and processing aids as component A4, and b) from 5 to 95% by weight of a molding composition B, made from at least one thermoplastic polyamide, copolyamide or blends of these as component B1, at least one crosslinked elastomeric polymer as component B2 and, if desired, other additives and processing aids as component B3, where, in the shaped article, segments of molding compositions A and B are connected to one another over a relatively large area. These shaped articles may be used in the motor vehicle sector, for example as air or coolant ducts.

Abstract: A flexible conduit includes a corrugated tubular metal bellows having a minimum inner diameter; cylindrical end fittings secured to the bellows; a metal hose disposed coaxially within the bellows and having a maximum outer diameter which is less than the minimum inner diameter of the bellows; and a free annular cylindrical space situated between the bellows and the metal hose. The cylindrical space has an outer diameter equaling the minimum inner diameter of the bellows and an inner diameter equaling the maximum outer diameter of the metal hose. The conduit further has a hollow cylindrical knit wire element positioned in the cylindrical space. The knit wire element radially fully occupies the cylindrical space without projecting radially therefrom.

Abstract: A flexible line element, particularly for exhaust pipes of internal combustion engines of motor vehicles, is disclosed having a screw thread-like or annularly corrugated bellows provided with cylindrical connection ends and a metal netting directly surrounding the bellows. The metal netting is inherently stable and has at least one plastic deformation for acoustic or mechanical damping of the bellows. Consequently, the metal netting has both a protective and a damping function.

Abstract: Flexible PVC hose can be used with toilet systems in vehicles, such as boats, recreational vehicles, etc, or at pumpout stations. The hose includes about 40-55% by weight PVC resin, and at least 10% by weight of an EVA high molecular weight plasticizer. The hose also typically includes a low molecular weight plasticizer, stabilizer, lubricant, filler (such as 5-20% by weight dense filler like calcium carbonate), and pigment. The hose typically will not fail (that is will not transmit odor) for the life of the toilet system, or mechanical life of the hose.

Abstract: The present invention is directed to a bellows tube formed of metal having a cylindrical collar portion and a plurality of corrugations adjacent thereto with outwardly curved portions and inwardly curved portions alternately formed along the longitudinal axis of the tube. The bellows tube includes a bulged end portion which extends from a first outwardly curved portion of the outwardly curved portions toward the collar portion. The bulged end portion is bulged outward of the tube, with its outer diameter gradually reduced from the first outwardly curved portion to the collar portion. A connecting end portion is formed for connecting the bulged end portion with the collar portion, and the connecting end portion is curved inward of the tube. Preferably, the radius of curvature of the connecting end portion is smaller than the radius of curvature of the first outwardly curved end portion.

Abstract: The present invention relates to materials which are barriers to gases and to liquids, which are resistant to water and which are capable of being shaped into single- or multimaterial thin layers or films which can be processed by drawing and/or thermoforming. These barrier materials are based on copolyamide composed essentially of units derived from hexamethylenediamine, iso- and terephthalic acids and optionally adipic acid. They can be used for the manufacture of composite materials comprising one or more thin layers, sheets and/or films, pipes or hollow bodies intended in particular for the packaging of chemicals, foodstuffs or pharmaceutical and/or cosmetic products.

Abstract: A flexible conveying element, in particular for the exhaust systems of automotive combustion engines, having a helically or annularly corrugated metal hose which is installed coaxially in the metal bellows. The outside diameter of the metal hose is smaller than the inside diameter of the bellows and the ends of the hose are situated inside the end fittings of the bellows. The metal hose has an interlocked profile and the bellows and the hose are in an at least indirect contact with each other in at least one additional zone between the two end fittings.

Abstract: An air intake duct comprising a main body with bellows which is made by blow molding soft resin and ring-like reinforcements made of hard resin. As the soft resin, a material which is capable of keeping a form of a tube by itself is adopted. The reinforcements are previously mounted on the internal surface of a blow molding die and unite with the bellows in the main body in blow molding.

Abstract: The invention relates to a flexible tube device, which is repeatedly reshapable by action of reshaping forces comprising bending forces and which has the capability of substantially maintaining its shape received by the reshaping as the forces are released. This device is characterized in that the device (1) comprises a flexible part comprising a flexible inner hose (3) and/or a flexible outer hose, which may surround the flexible inner hose (3) and be provided along substantially the entire flexible part and preferably inside the outer hose, outside the inner hose or between the outer hose and the inner hose, a bend stiffening member (4) which is plastically deformable at the reshaping of the tube device and which after the removal of the reshaping forces substantially retains the shape received by the plastic deformation and thereby substantially determines the shape of the tube device.

Abstract: A tubing assembly for conveying fluid under pressure such as from a source of air pressure in a vehicle to an airbrake system of the vehicle. The assembly includes a flexible first and second tubing member, each having an outer surface and extending axially from a forward distal end to a rearward distal end. The first tubing member is wound intermediate the forward and the rearward distal end thereof radially about a generally cylindrical surface to define a first expandable, self-retracting coil portion having a plurality of first turns. The second tubing member, in turn, is wound intermediate the forward and the rearward distal end thereof radially about the cylindrical space to define a second expandable, self-retracting coil portion disposed within the curve of the cylindrical surface space as extending parallel to the first coil portion and as having a plurality of second turns.

Abstract: Hoses are often reinforced with fabric to improve their performance characteristics, such as burst strength. For instance, radiator hose used in automotive applications is generally reinforced with continuous yarn. However, it is a labor-intensive process to manufacture such hoses which include fiber reinforcements. A substantial amount of material waste also generally occurs in the manufacture of such fiber-reinforced hose. By utilizing the technique of this invention, hose which has a high level of burst strength can be manufactured without including continuous yarn reinforcement.

Abstract: A body for absorbing impact energy is designed as a flexible pipe and is characterized in that the walls of the pipe are made of several layers and comprise at least one metal layer and at least one paper or plastic layer. The cross-section of the absorbing body is designed in such a way that at least one section of its wall is substantially straight and extends substantially parallel to the direction from which an impact is expected.

Abstract: A fire suppression sprinkler system and method for installing a sprinkler system in new and existing buildings. The system includes a manifold that supplies fire-suppression fluid to a set of wall-mounted sprinkler heads via flexible sprinkler head conduits through an unobstructed path. The installation and retrofit methods include determining the location of the sprinkler head, installing the manifold, making sure that there is an unobstructed path between the manifold and the sprinkler head location, running the conduit through the path by snaking it where necessary through the wall to which the sprinkler head is mounted, connecting the conduit to the manifold and sprinkler head, and then mounting the sprinkler head.

Abstract: Expandable tubing, as utilized in downhole applications in the oil and gas exploration and extraction industries, includes tubing having a wall with a multiplicity of overlapping longitudinally extending slots therein. The slots have end portions and at least some of the slots are wider at at least one end portion.

Abstract: An improved bellows assembly (18) is provided for use in, for example, an ion implanter (10). The bellows assembly comprises a first mounting portion (56) located at one end of the bellows assembly for fixedly mounting the bellows assembly to a first vacuum chamber (16); a second mounting portion (52) located at an opposite end of the bellows assembly for slidably mounting the bellows assembly to a second vacuum chamber (15); and a steel bellows (54) located between the first and second mounting portions. The bellows extends generally along a longitudinal axis (64) and is expansible and contractible along this axis. The second mounting portion permits radial slidable movement of the bellows assembly with respect to the second chamber in a first plane substantially perpendicular to this axis. The second mounting portion comprises at least one sliding seal subassembly (80) for maintaining the vacuum, and a support ring (78) and a slide plate (82) located on opposite ends of the sliding seal subassembly.

Abstract: A tube element, especially for the exhaust systems and exhaust gas recirculation systems of combustion engines in vehicles. The element has a single- or multi-ply tube element made of metal which is provided with cylindrical end fittings and at least two annularly corrugated bellows and a connecting pipe forming a single element, with the pipe corresponding with the bellows in diameter as well as in wall thickness, and with the inside diameter of the connecting pipe corresponding substantially with the free inside diameter of the adjacent bellows. The element has a concentric reinforcing pipe at an external radial distance to the connecting pipe, with the ends of the reinforcing pipe, whose inside diameter corresponds with the outside diameter of the bellows, being connected with the radial outward crests of the first corrugations of the bellows following the connecting pipe.

Abstract: The present invention is directed to a multilayer material having in order a layer of fluorinated polymer, a layer of binder for fluorinated polymer having a polymer A with moieties (1)-(4), and a layer of polymer which is incompatible with the fluorinated polymer. The multilayer material is useful for making a pipe which has a superior barrier properties to petroleum products and the additives thereof. The present invention also relates to a pipe having a multilayer structure having two layers of polyamide and a layer of binder comprising a polymer A with glutarimide moieties (1)-(4) in between. The pipe has superior barrier properties to petroleum products and the additives.

Abstract: A hose for hose pumps is provided. The hose has, in the unloaded state, an essentially elliptical cross-sectional profile with a long semiaxes ending in a point, with an outer width B1 of about 0.8 to 10 mm, a maximum outer height H1 of about 0.4 to 5 mm, the numerical ratio of the outer width B1 to the maximum outer height H1 being about 2:1, and with a wall thickness of about 0.3 to 2 mm, wherein the hose essentially consists of one of the elastic materials rubber, silicone rubber, nylon, polyethylene or polyamide.

Abstract: The flexible hose comprises a bellows hose wall 1 composed of an inner wall 2 and an outer wall 3 each made of a soft resin and a spiral hard reinforcement 4 interposed therebetween. As the hose contracts, a spiral groove 7 is formed inside of the hose. The inner wall 2 is not partially bonded or fused with the outer wall 3 and the hard spiral reinforcement 4 to form unbonded sites or fragments 8. As the hose contracts, the unbonded fragments 8 are separated from the outer wall 3 and the spiral hard enforcement 4 and move to the inward direction of the hose, and close the spiral groove 7. Therefore, even a fluid flows to any longitudinal direction, the flexible hose reduces a flow resistance.

Abstract: A hose for transporting a fluid through a controlled bend and method of using same. In one application, the hose is adapted for incorporation into an automotive vehicle and has a generally straight portion and a bent portion. The bent portion is capable of maintaining a 90 degree bend without causing an "S" shape and provides a visually pleasing appearance.

Abstract: A fluidic connector with a leak proof connection site that includes a first larger diameter portion, a second smaller diameter portion and a deformable buckling region that forms a part of both the first and second diameter portions where the two portions join. The first larger diameter portion forms a separate inner surface for receiving a plug to securely seal off the connection site from fluid communication therethrough while the second smaller diameter portion is adapted to receive and securely seal different sizes of male adapters used for attaching a lumen. The deformable buckling region forms a structural buffer between the first and second diameter portions in order to maintain the diameter of the first larger diameter portion when the second smaller diameter portion is stretched out by prolonged insertion of a nonconforming male adaptor. In addition, an adapter is provided which permits flexibility in use and provides a redundant fluid seal, without exhibiting creep.

Abstract: A portable water conveyance device for diverting the flow of water and particularly, a stream, includes a collapsible tube for receiving the water and conveying the water downstream to a discharge site. An inlet frame is coupled to the inlet end of the tube to hold the end of the tube open and direct the water into the tube. A pair of pivotally mounted wing walls are attached to the sides of the walls to direct the water into the tube. In embodiments, an outlet frame is coupled to the discharge end of the tube. The outlet frame is mounted on a support structure to adjust the height of the outlet frame with respect to the ground and water level at the discharge end of the tube. A ledge is attached to the lower end of the outlet frame and extends outwardly therefrom in the downstream direction. The shelf extends a distance to inhibit the upstream migration of marine animals that may climb up the support structure. The height of the outlet frame also can be adjusted to control the migration of marine life.

Abstract: A tubular member useful as an inner liner for the working channel of a flexible endoscope has a distal portion which is specially treated to make it highly flexible and resistant to kinking or collapsing when it bends with the flexible section of the endoscope. The tubular member is also useful as a catheter device or as a component of a catheter device or catheter system. A multiplicity of external ridges on the distal portion of the tubular member reinforce the tubing wall and prevent kinking or buckling of the wall or collapsing of the inner lumen. The external ridges may be formed by convolutions of the tubing wall or by external threads which are formed on the exterior of the tubing wall within the flexible distal portion. An outer helical reinforcing coil may be added between the external ridges to further reinforce the flexible distal portion of the tubular member from kinking or collapsing.

Abstract: Flexible PVC hose can be used with toilet systems in vehicles, such as boats, recreational vehicles, etc, or at pumpout stations. The hose includes about 40-55% by weight PVC resin, and at least 10% by weight of an EVA high molecular weight plasticizer. The hose also typically includes a low molecular weight plasticizer, stabilizer, lubricant, filler (such as 5-20% by weight dense filler like calcium carbonate), and pigment. The hose typically will not fail (that is will not transmit odor) for the life of the toilet system, or mechanical life of the hose.

Abstract: A tubular section member for use as a fluid flow hose or as an admission or exhaust silencer, characterized in that it includes internal partitions or ribs (12) which are corrugated in shape in cross-section, which are interconnected by an axial core (16) along the axis of the section member, and which are wound helically along said axial core (16).

Abstract: A flexible tubing device is used for intravenous infusion of medicine, particularly antibiotics, to all lumens of a multi-lumen central venous line catheter. The single input arm of the tubing device is connected to a source of medicine, and each of the several output legs of the tubing device are connected to different ports on the central venous line catheter. It allows a single input to be divided into a plurality of outputs. To allow this, the free end of the input arm has a female tube connector fitting while the free end of each of the output legs have a male tube connector fitting.

Abstract: An adhesive tube, a composite tube comprising a heat-shrinkable tube having on the inner surface thereof the adhesive tube, and a method for sealing an object having an uneven surface comprising the steps of: inserting the object in the composite tube and then heating the composite tube. The adhesive tube comprises a double-layered thermoplastic resin layer comprising an outer layer and an inner layer, the outer layer having a melt index smaller than that of the inner layer.

Abstract: Tubular workpieces of oriented polymers such as polyethylene polyester and PVC are formed by drawing a workpiece over an expanding former in the absence of any force perpendicular to the axis of the workpiece. The processes do not require the use of any liquid lubricant. They enable greater degrees of expansion and hence orientation in the direction perpendicular to the axis to be achieved and result in products of improved appearance and strength.

Abstract: A very light weight high pressure coiled retractable hose kit for marine vehicles and outdoor use which uses a helical structure to automatically retract when not used. The helical structure allows the hose to extend substantially the length of a typical fishing boat. A UV and thermal resistant material is used to withstand damage from prolonged exposure to sunlight, heat or cold. The material is also corrosion resistant to withstand damage from salt water. A high pressure rating allows a narrow diameter hose which occupies a small storage area to be attached to a conventional spigot and provide an increase in water velocity when the nozzle is activated. Input and output fittings and a nozzle retention bracket hold the hose structure in a tight helical spring configuration for storage. The light weight allows easy manipulation of the hose kit and provides improved safety by enhancing the ability to move the hose kit from underfoot during periods of intense activity such as when gaffing fish onboard a boat.

Abstract: A highly puncture resistant, biocompatible medical material is provided. The medical material may be used for a dialysis graft or an artificial blood vessel. The medical material has a puncture resistant layer comprising a resin prepared by mixing 100 parts by weight of a styrene elastomer and/or an olefin elastomer, and at least 20 parts by weight of an isoprene derivative.

Abstract: To reduce turbulence in a fluid flow, especially exhaust gas from automotive internal combustion engines, within a flexible conduit element, a bellows (1, 40, 42) has an internal hose (6) located therein made of woven or knit metal wire. The hose is engaged against the internal corrugations of the bellows (1) and/or a connecting pipe (41) between adjacent bellows (40, 42) to guide the exhaust gases, and dampen vibrations and oscillations, which may become resonant with the corrugations of the bellows, and thereby decrease noise level during the gas flow. The hose (6) is engaged against the inner corrugations (3) of the bellows by, for example, first axially compressing the hose to result in permanent deformation of the wires to a diameter larger than the clear inner diameter of the bellows; by then forcing the hose into the bellows, the hose will resiliently compress and engage against the bellows.

Abstract: A steering device is attached to a submersible swimming pool cleaner for aiding in turning the cleaner away pool side wall engaging positions and thus allowing the cleaner to move across pool surfaces for performing its cleaning function. The steering device includes elongated rods extending from a connector fitting attached to the pool cleaner hose connector. Driven gears of the pool cleaner connector drive the steering device and cause rod ends engaging a pool side wall to lift and push the cleaner away from the side wall. The fitting and thus the rods are freely rotatable through a limited arc about an axis of rotation of the connector, defined by movement of a gear tooth between stop prongs. The ability of the rods to rotate freely within this arc overcomes a problem of excess drag to the cleaner by the steering device.

Abstract: A retainer (10) for holding and protecting a sewer hose for a recreational vehicle is provided. The retainer (10) has an elongate hollow tubular body portion (20) with a flat base (40) attached to a bottom end (23) of the body portion (20). A cap (50) is removably attachable to a top end (22) of the body portion (20). Drain holes (34) provide for ventilation between a hollow interior region (36) of the body (20) and the environment surrounding the retainer (10). Bores (48), (58) pass through the base (40) and the cap (50) to allow for thorough ventilation of the hollow interior region (36) of the body portion (20). The body portion (20) is provided with a width which is less than a width of the sewer hose (H). The base (40) and removable cap (50) are provided with a width which is greater than a width of the sewer hose (H). Hence, the sewer hose (H), when it is located upon the body portion (20) of the retainer (10), is prevented from falling off of the body portion (20).

Abstract: The invention described herein pertains generally to a crosslinked plumbing tube which has at least one overmolded end (e.g. nose cone or nut) attached thereto. In one aspect of this invention, the tube is more rigid than the overmolded component while in another aspect of the invention, the tube is more flexible than the overmolded component. In either embodiment of this invention, the tube provides an all-plastic waterway for a contained liquid or gas to flow through. The degree of flexibility is controlled independently controlling the density of the tube polymer and the overmolding polymer. In one aspect of the invention, the tube and the overmolding polymer are both partially crosslinked to independent first degrees prior to the overmolding process. Subsequent to the overmolding process, the crosslinking is continued to a higher degree for both polymers.

Abstract: In a flexible endoscope having a flexible insertion tube comprising a tubular, biocompatible elastomeric outer covering thereabout which encloses an interior space, the improvement according to the present invention comprises a vapor barrier between the outer covering and the interior space. Thus, vapor, such as hydrogen peroxide or other sterilants, passing through the outer covering from an atmosphere thereabout is prevented from entering the interior space by the vapor barrier. Further, the vapor is thus prevented from interacting with substances, such as lubricants, within the interior space to produce agents harmful to the elastomeric covering.

Abstract: A casing for forming a rippled meat product includes a generally tubular stockinette fabric integrally knitted with a restrictive structure. The restrictive structure may include one or more helical threads. The differential expansion of the stockinette and the restrictive structure when the casing is stuffed creates a helical bulge in the surface of the meat product. The restrictive structure may include a chain of longitudinal connections that promote a decrease in the longitudinal spacing of the turns of the helical thread in response to the radial expansion of the helical thread during stuffing. Such a restrictive structure also facilitates a method for releasing the casing from the meat product following processing by severing the endmost connection in the chain.

Abstract: An apparatus and method for producing an hydraulic hose having ends of different internal diameters. An uncured hose is produced by conventional extrusion. The uncured hose is placed upon a mandrel having a reduced diameter end. That end of the uncured hose proximate the reduced diameter of the mandrel is covered by a heat responsive shrink tube. The shrink tube is heated to mold the end of the hose about the mandrel. Thereafter, the hose is vulcanized.

Abstract: A cable guide (1) consisting of articulated, partially overlapping individual components (2, 3), where the articulation axes (7, 8) of the components (2, 3) run transversely to the longitudinal axis of the cable guide and the individual components (2, 3) are connected together in such a way that the articulation axes (7, 8) of two adjacent components (2, 3) are positioned at 90.degree. to one another. The components (2, 3) include two different alternating basic shapes and each have a removable, snap-on cover (11, 12), where the covers (11, 12) of the cable guide (1) are all directed to one side of the cable guide (1).

Abstract: Flexible convoluted conduit covered with braid made by cold forming the braid to an end of the conduit. Cold forming can involve magneforming. Resulting conduit is not brazed, welded, or annealed, thereby facilitating construction of convoluted conduits with higher working pressures and/or less braid material.

Abstract: Flexible convoluted conduit covered with braid made by cold forming the braid to an end of the conduit. Cold forming can involve magneforming. Resulting conduit is not brazed, welded, or annealed, thereby facilitating construction of convoluted conduits with higher working pressures and/or less braid material.

Abstract: This invention relates to the manufacture of flexible porous plastic aeration pipe having an essentially uniform porosity throughout its length. The plastic pipe of this invention has a gas permeable wall of thermoset polymer particles and thermoplastic binder for the particles with a substantially uniform plurality of micropores through the wall of about 0.001 inch to 0.004 inch along its length for diffusion of gas therethrough and transfer to a medium. The thermoset polymer particles have a mesh size of about 60 to about 140 mesh, preferably approximately 80 to 100 mesh. The method of manufacture includes volumetric delivery of thermoset polymer particles and thermoplastic binder particles to a mixing chamber for preblending and then controlled volumetric feeding of the preblend into an extruder to form the porous aeration pipe.

Abstract: Convoluted conduit covered with braid made by cold forming the braid to an end conduit or an end section of the convoluted conduit. Cold forming can involve magneforming. Resulting conduit need not be brazed, welded, or annealed, thereby facilitating construction of convoluted conduits with higher working pressures and/or less braid material.

Abstract: This invention provides an accessory for an automatic pool cleaner, to increase the randomness of movement of a suction head of the pool cleaner, and a method therefor. The method comprises looping a section of the cleaner hose and allowing the hose sections leading up to the loop to vary in length. Particularly, the hose section leading from the pump to the loop is varied. The accessory comprises two connection parts, one for connection to each respective section of hose to form the necessary hose loop. Preferably one of the parts is slidable along the hose length to enable the hose to vary its length. The sliding action of the hose occurs between two stops in the length of the hose, and a pawl mechanism is provided to enable the slide to occur in one direction towards a stop. Contact with the stop causes the pawl mechanism to switch over and slide the hose in the opposite direction.

Abstract: Elastomeric vehicle hoses based on ethylene, alpha-olefin, vinyl norbornene elastomeric polymers will exhibit improved cure state and improved long term heat aging. Long term heat aging is an important consideration, as vehicle lives get longer and under the hood temperatures get higher. Also, such elastomeric based hoses will have improved compression set under a wide range of service temperatures. Such excellent compression set values lead to improved sealability over a wide temperature range. Additionally, these elastomeric polymers exhibit lower compound viscosity leading generally to improved processability.

Abstract: The hose comprises two flexible portions connected respectively to the suction unit and to the fume-conveyor element or hood, and a rectilinear portion which is articulated to the suction unit and the hood. The rectilinear portion comprises two rigid tubes between which is disposed an extensible bellows-type tube. Rigid tubes are held co-axial by a pair of rectilinear guides fixed to one of the rigid tubes and slidably engaging on a pair of fixed slides on the other rigid tube. The two rigid tubes are, finally, connected by a tension spring the action of which is braked by two friction disks disposed between the guides and the slides.

Abstract: Tubing and tubing assemblies are provided that are made from a blend of an ionic and a non-ionic polymer. The tubing may be made by blending and extruding the polymers. The assemblies may be made by bonding the tubing to a plastic fluid transporting component such as a cassette or bag.

Abstract: A thermoplastic tube for in-field storage or packaging of bales of agricultural products is disclosed. The tube combines high puncture resistance with an exceptional stretchability, elasticity and good slip properties. The circumference of the tube can be expanded by at least 15% without tearing when stretched in the transverse direction. The tube also shows no substantial permanent deformation 2 hours after being so stretched for a period of time not exceeding 30 minutes and released. Before feeding a bale, the tube is stretched radially to facilitate the insertion and accommodate bales larger than original diameter of the tube. When regaining the original size, the tube wraps up tightly the bales reducing the amount of air trapped in the tube. Since the tube can be enlarged to a variable extent, it may accommodate bales of different shapes and sizes.

Abstract: Tire curing bladders are made from poly(isobutylene-co-4-bromomethylstyrene) with a benzylic bromine content of from 0.15 to 0.45 mole percent, vulcanized with a cure system of 1,6-hexamethylene-bis(sodium thiosulfate) and zinc oxide. The vulcanizate has low residual benzylic bromine content which leads to enhanced stability under severe duty applications, reduced hot tension set, and reduced adhesion or co-cure to halobutyl tire innerliners.

Abstract: A hose with connector end fittings for carrying pressurized fluid having longitudinally displaced internal ribs. These ribs run along inside walls of the hose to prevent flow termination due to kinking or compression.

Abstract: A lightweight hose assembly (10) of the type adapted for conveying fuels and other corrosive fluids. The assembly (10) includes a tubular inner liner (12) comprising a polymeric fluorocarbon material resistant to chemical and heat degradation, and is characterized by including an outer liner (14) comprising an expanded polyamide material disposed about the inner liner (12). The assembly (10) further includes a conductive strip (30) formed along the inner liner (12) for dissipating electrical charges accumulating along the inner liner (12).