Abstract: The present invention relates to a high-pressure hose structure comprising several layers of reinforcing plies where the reinforcing fibers are spirally laid. The hose structure according to the invention is characterized by the odd number of its reinforcing plies.

Abstract: A brake hose is made by laminating an inner tube rubber layer, lower yarn layer, intermediate rubber layer, upper yarn layer, and cover rubber layer. The rubber material of the inner tube rubber layer and intermediate rubber layer is a blend material in which 40 to 80 wt % is IIR and the remainder is EPDM. The upper yarn is PVA, and the upper yarn is PET, where the tensile strength per unit decitex is at least 6.5 g, and the 2.7 g elongation is 2.6±1%. The brake hose has better water penetration resistance and can be produced by a general purpose method.

Abstract: A vibration damping bellows with a high vibration absorbing effect and whose a simple structure. In a vibration damping coupling, for example, the vibration damping bellows is formed by interposing viscoelastic material, material with low elasticity, or combination thereof between an inner member and an outer member, which are made of stainless steel. The stainless steel inner member and/or outer member may be omitted when occasion demands. The material of the stainless steel plate, for example, may be SUS 304 that is austenitic stainless steel. Further, flanges to perform connection with pipes may be provided in both ends of the bellows. The viscoelastic material may comprise elastomer such as silicone rubber and vibration damping alloy.

Abstract: A method of dampening fluid-borne noise in an automotive power steering system in accordance with a presently preferred embodiment of the invention contemplates provision of a power steering fluid hose having a laminated inner tube surrounded by a reinforcing outer tube. The inner tube has a resilient inner layer with a radial thickness T1 and a resilient outer layer with a radial thickness T2. The inner layer is softer than the outer layer and is bonded by vulcanization to the outer layer. The radial thicknesses T1 and T2 have a ratio selected to dampen fluid-borne noise within a preselected frequency range by elastic expansion of the inner and outer layers.

Abstract: A refrigerant transportation hose having excellent processability and durability, as well as high resistance to gas permeation (gas barrier properties) and adequate flexibility. The refrigerant transportation hose containing a tubular rubber layer in which refrigerant is circulated, the tubular rubber layer is formed by a material consisting essentially of components (A) to (C): (A) at least one rubber of butyl rubber and halogenated butyl rubber; (B) polybutene; and (C) a white filler.

Abstract: A hose comprising a core layer, an elastomeric friction layer overlaying the core layer, at least one reinforcement layer overlaying the friction layer, and a cover layer overlaying the at least one reinforcement layer, wherein the core layer is comprised of a blend of two different non-plasticized polyamides.

Abstract: Disclosed herein is a hose for introduction and distribution of inflator gas which is characterized in that the hose is placed in an air bag apparatus for side collision and distributes the inflator gas upon operation of the air bag, that outside surface and/or inside surface of the hose are/is coated with rubber or synthetic resin and that the hose has a distribution hole.

Abstract: A vehicle brake hose has inner tube rubber layer 1, first and second braided fiber reinforcing layers 2, 3 that are provided outside the inner tube rubber layer 1, and an outer tube rubber layer 5 that is provided outside the second braided fiber reinforcing layer 3. The first braided fiber reinforcing layer 2 is tightly braided and the second braided fiber reinforcing layer 3 is loosely braided. The first and second braided fiber reinforcing layers 2, 3 are bonded through an adhesion layer 4 to the outer tube rubber layer 5.

Abstract: A brake hose has an inner rubber layer, an outer rubber layer, and at least two reinforcing layers provided between the inner rubber layer and the outer rubber layer. The reinforcing layers include an upper yarn layer, and a lower yarn layer. Polyester yarn having a tensile strength of not lower than 6.9 g per unit dtex and having a stretchability of 2.6±1.0% at 2.7 g load per unit dtex is used as lower yarn in the lower yarn layer. The braid angle of the lower yarn layer with respect to the axial direction of the hose is set at 59±2°.

Abstract: A vibration absorbing hose has a corrugated portion extending substantially entire part of the hose and end portions of straight cylindrical shape. The vibration absorbing hose has multi-layered construction of tubular inner rubber layer, pressure resistant reinforcement layer circumscribing an outer side of the inner rubber layer and outer rubber layer as outermost cover layer. The pressure resistant reinforcement layer is formed, for example, by braiding reinforcing yarns, so as to have corrugations along the corrugated portion of the inner rubber layer.

Abstract: A flexible hose for use as a refrigerant passageway in a vehicular refrigerating cycle has an inner hose and an outer hose. The outer hose covers the inner hose with a space formed in a given distance. The outer hose and the inner hose are formed of resin having flexibility.

Abstract: The apparatus for joining and sealing conduits, includes edge trim, a sleeve, and a retaining element. The edge trim is shaped to mount upon and engage an end of a conduit. The sleeve extends between the conduits and at least partially surrounds the edge trim. The sleeve may be made of compressible material, such that when the retaining element surrounds a portion of the sleeve and the edge trim, the retaining element generally compresses the portion of the sleeve portion underlying the retaining element and displaces the sleeve material to expand on either side of the retaining element and limit movement of the retaining element. The method of joining and sealing conduits includes mounting the edge trim and a retaining element upon an end of a conduit, extending a sleeve between the conduits, and sliding the retaining element over the sleeve toward the end of the conduit.

Abstract: A flexible fiber inforced hose comprises an inner rubber layer, an outer rubber layer, and a fiber reinforced layer provided between the inner rubber layer and the outer rubber layer, wherein the fiber reinforced layer is constructed by using a reinforcing fiber of at least one raw yarn, which is a spanized yarn consisting of monofilaments made of a para aromatic polyamide material. Such a fiber reinforced hose has excellent heat resistance, tensile strength, and adhesiveness with the rubber layers, as well as durability against repetitive pressurizations.

Abstract: A vibration absorbing hose including a corrugated portion has multi-layered construction of tubular inner rubber layer, pressure resistant reinforcement layer formed on an outer side of the inner rubber layer by providing reinforcing yarns. A radial depth B of the pressure resistant reinforcement layer at a position of each of corrugation valleys of the rubber layer has such relationship with respect to a corrugation valley depth A of the rubber layer as 0< or =B< or =0.7×A, and an opening angle ? of each of the corrugation valleys of the rubber layer satisfies ?< or =100°.

Abstract: The present invention relates to a multilayer flexible hose, preferably for fuel or coolant lines in an automotive vehicle, comprising a support layer and a metallic barrier layer which is fixedly connected to said support layer, and to a method of producing the same.

Abstract: A garden hose assembly includes an elongated and flexible tubular member that includes an open first end, an open second end and a peripheral wall extending between the first and second open ends. A cross-section taken traversely to a longitudinal axis of the tubular member has a generally oblong shape when the tubular member is filled with a fluid and a substantially flattened shape when the tubular member is not filled with a fluid. The tubular member has an outer surface colored a fluorescent color. A threaded female coupler is fluidly coupled to the first end and a threaded male coupler is fluidly coupled to the second end.

Abstract: An impermeable rubber hose is thinned for the purpose of reducing weight and costs. A rigid resin film is used as an intermediate layer. When the resin film is gradually rolled up into a cylindrical shape from a planar shape and fed to an extrusion head and rubber is simultaneously extrusion-molded inside and outside the cylindrical film, the film produces a break or a twist to make extrusion molding difficult. It is an object of the present invention to make simultaneous extrusion molding possible even in such a condition. To attain the above object, a thermoplastic resin film (5) which forms an intermediate layer (2) and of which the melting point is lower than the vulcanizing temperature is formed in a long belt-shape. Slits (7) are provided at fixed intervals on the right and left long side sections (8, 8) of the film (5) in the longitudinal direction.

Abstract: A vibration absorbing hose including a corrugated portion has multi-layered construction of tubular inner rubber layer, pressure resistant reinforcement layer circumscribing an outer side of the inner rubber layer and outer rubber layer as outermost cover layer. The pressure resistant reinforcement layer is formed, for example, by providing reinforcing yarns, so as to have corrugations along the corrugated portion of the inner rubber layer. The inner rubber layer contains scaly filler in an amount of 50 phr to 200 phr so as to be oriented in a stretching direction of the inner rubber layer. The scaly filler has an aspect ratio of 2 to 90.

Abstract: Reinforced hose, especially useful for transmitting synthetic transmission fluids and having enhanced thermal resistance includes a chlorinated polyethylene tube which is vulcanized with a blend of peroxides and cross-linking coagents to provide resistance to degradation caused by synthetic transmission oil. A plasticizer comprised of a blend of polymeric and ester based materials provides improved high temperature and low temperature properties. The tube is reinforced by a woven layer of metal wire which is in turn covered by a rubber adhesive layer that is overlain by a woven layer of yarn. The woven yarn braid is covered with a coating of polyurethane material in order to improve abrasion resistance and to prevent yarn fiber from being caught on rough surfaces that the hose may be dragged across. The entire hose is vulcanized after its assembly and then rapidly cooled.

Abstract: The present invention provides a heat resistant fuel hose comprising a rubber inner pipe with an inner layer and an outer layer in the inner pipe. The inner layer of the inner pipe comprises a hydrogenated acrylonitrile butadiene rubber (H-NBR) that is mixed with zinc oxide (ZnO) and magnesium oxide (MgO) as acid acceptors and is peroxide vulcanized. The outer layer of the inner pipe comprises an epoxy cross-linking type acrylic rubber (ACM) that has been vulcanized bonded to the inner layer of the inner pipe. The inner layer and outer layer of the inner pipe of the heat resistant fuel hose of the present invention are strongly bonded, and the rubber inner pipe has excellent heat resistance.

Abstract: Disclosed herein is a hose for introduction and distribution of inflator gas which is characterized in that the hose is placed in an air bag apparatus for side collision and distributes the inflator gas upon operation of the air bag, that outside surface and/or inside surface of the hose are/is coated with rubber or synthetic resin and that the hose has a distribution hole.

Abstract: A vibration absorbing hose excellent in vibration absorbing property, mounting stability and shape retaining property. The vibration absorbing hose comprises at least one rubber layer composed of a rubber composition having a storage elastic modulus (E?) of 20 to 100 MPa at 200 Hz with an elongation strain of 0.1% at an ordinary temperature (about 20° C.), and a damping factor (tan ?) of not lower than 0.4.

Abstract: Disclosed are various fluoropolymer blend combinations and multilayer articles comprising a blend in a first layer and a second layer comprising a polymer bonded to the first layer. The invention also provides an article comprising a first layer comprising a blend of two or more fluoropolymers, and a second layer bonded to the first layer, the second layer comprising a partially-fluorinated thermoplastic polymer, a perfluorinated thermoplastic polymer, or a combination thereof. The invention also provides an article comprising a first layer comprising a blend of two or more fluoropolymers, at least one of which comprises a partially-fluorinated thermoplastic polymer, and optionally at least one perhalogenated polymer, and a second layer bonded to the first layer, the second layer comprising an at least partially-fluorinated thermoplastic polymer. The invention also provides processes for preparing blended fluoropolymers and multilayer articles comprising a fluoropolymer layer.

Abstract: A hose of a laminated structure which comprises a rubber layer composed of a rubber composition, and a laminate including a metal foil and a resin, the rubber composition including: (A) a rubber including at least one of an ethylene-propylene-diene terpolymer and an ethylene-propylene copolymer; (B) a peroxide vulcanizing agent; (C) a resorcinol compound; and (D) a melamine resin. The hose is light in weight, less costly, and has excellent gas barrier properties.

Abstract: A vibration absorbing hose has a corrugated portion extending substantially entire part of the hose and end portions of straight cylindrical shape. The vibration absorbing hose has multi-layered construction of tubular inner rubber layer, pressure resistant reinforcement layer circumscribing an outer side of the inner rubber layer and outer rubber layer as outermost cover layer. The pressure resistant reinforcement layer is formed, for example, by braiding reinforcing yarns, so as to have corrugations along the corrugated portion of the inner rubber layer.

Abstract: A vibration absorbing hose including a corrugated portion has multi-layered construction of tubular inner rubber layer, pressure resistant reinforcement layer formed on an outer side of the inner rubber layer by providing reinforcing yarns. A radial depth B of the pressure resistant reinforcement layer at a position of each of corrugation valleys of the rubber layer has such relationship with respect to a corrugation valley depth A of the rubber layer as 0< or =B< or =0.7×A, and an opening angle &thgr; of each of the corrugation valleys of the rubber layer satisfies &thgr;< or =100°.

Abstract: A vibration absorbing hose including a corrugated portion has multi-layered construction of tubular inner rubber layer, pressure resistant reinforcement layer circumscribing an outer side of the inner rubber layer and outer rubber layer as outermost cover layer. The pressure resistant reinforcement layer is formed, for example, by providing reinforcing yarns, so as to have corrugations along the corrugated portion of the inner rubber layer. The inner rubber layer contains scaly filler in an amount of 50 phr to 200 phr so as to be oriented in a stretching direction of the inner rubber layer. The scaly filler has an aspect ratio of 2 to 90.

Abstract: A hose assembly for coupling a plurality of components in fluid connection and a method for making same. According to a first aspect of the invention, the hose assembly includes at least one rigid portion and at least one flexible portion which cooperate to permit the shape and size of the hose assembly to be easily modified so that the components may be coupled to one another. A second aspect of the invention provides a method for reinforcing a flexible portion of the hose assembly to prevent the flexible portion from kinking when the flexible portion is bent. A third aspect of the invention provides a support collar for use in reinforcing an intersection between a pair of duct sections wherein at least one of the duct sections is moveable relative to the other duct section. The support collar reinforces the intersection and helps to render this section less susceptible to tearing.

Abstract: A vibration damping bellows with a high vibration absorbing effect and whose a simple structure. In a vibration damping coupling, for example, the vibration damping bellows is formed by interposing viscoelastic material, material with low elasticity, or combination thereof between an inner member and an outer member, which are made of stainless steel. The stainless steel inner member and/or outer member may be omitted when occasion demands. The material of the stainless steel plate, for example, may be SUS 304 that is austenitic stainless steel. Further, flanges to perform connection with pipes may be provided in both ends of the bellows. The viscoelastic material may comprise elastomer such as silicone rubber and vibration damping alloy.

Abstract: A flexible fiber inforced hose comprises an inner rubber layer, an outer rubber layer, and a fiber reinforced layer provided between the inner rubber layer and the outer rubber layer, wherein the fiber reinforced layer is constructed by using a reinforcing fiber of at least one raw yarn, which is a spanized yarn consisting of monofilaments made of a para aromatic polyamide material. Such a fiber reinforced hose has excellent heat resistance, tensile strength, and adhesiveness with the rubber layers, as well as durability against repetitive pressurizations.

Abstract: The present invention relates to a multilayer hose, especially for conveying fuel, comprising an outer layer and a conductive, fluorine-containing, elastomeric inner layer, said inner layer comprising a fluorine-containing elastomer mixed with graphite.

Abstract: A leak-free flexible conduit and method of making the same is described. By attaching a flexible outer hose to a flexible inner hose without directly clamping the outer hose to the inner hose, the life of the inner hose is increased. Furthermore, the outer flexible hose creates a heat-resistant, airtight seal that prevents exhaust leaks from the inner flexible hose from escaping, substantially reduces the heat lost to the atmosphere, decreases the amount of vibration, reduces noise, and protects the inner flexible hose from corrosive elements and contaminants, thereby also extending the life of the inner flexible hose.

Abstract: A flexible hose for use as a refrigerant passageway in a vehicular refrigerating cycle has an inner hose and an outer hose. The outer hose covers the inner hose with a space formed in a given distance. The outer hose and the inner hose are formed of resin having flexibility.

Abstract: The invention relates to a flexible hose line, in particular, a high-pressure hose line which is subjected to a pressurized forming process, preferably for variable levels of pressure. Said flexible hose line consists of several layers, at least one of which is configured as a reinforcing layer. The hose line is characterised by an inner layer (1) with a profile which can be elastically stressed in at least the longitudinal direction of the hose. Said inner layer is the only layer whose length can be modified.

Abstract: A hose suitable for use in refrigerant systems. The hose has a barrier layer formed of at least two layers of thermoplastic resin. At least one of the layers is a vinyl resin. The resins are selected so that the hose has a permeation rate of virtually zero.

Abstract: A hydrogen fuel transporting hose for a fuel cell powered vehicle having a laminar structure includes at least one inner rubber layer, at least one reinforcing layer, and at least one outer rubber layer, which layers are laminated integrally with one another in the order of description in a radially outward direction of the hose. Each of the inner and outer rubber layers are obtained by vulcanizing a rubber composition including a rubber material selected from the group consisting of a halogenated butyl rubber material, and a blend of a halogenated butyl rubber material and a butyl rubber material. The vulcanized rubber includes a filler having a layered crystal structure and is vulcanized with one of a peroxide vulcanizing agent and a resin vulcanizing agent.

Abstract: A flexible hose construction adapted for conveying fluids under pressures and capable of withstanding relatively high external pressures without collapsing. The tubular construction includes a first reinforcement layer, an inner jacket surrounding the first reinforcement layer, a second reinforcement layer surrounding the inner jacket, and outer jacket covering the second reinforcement layer.

Abstract: A prosthesis that resiliently engages a body passage includes an annular clamping ring which may be folded along a diametric axis for insertion into the body passage. The clamping ring is adapted to resiliently spring outwardly, once in position inside the body passage, and to be continually resiliently biased against the interior surface of the body passage. One or more of the clamping rings may be attached to opposed ends of a tubular graft. The rings and connected graft may be positioned in the body passage using a applicator which selectively permits expansion and/or in some embodiments contraction of the annular ring in position within a body passage. Alternatively a retaining member may be used to retain the annular ring in a compressed condition until it is in a desired position within a body passage. Among other potential uses, the present invention may be useful as a vascular stent for treating abdominal aortic aneurysms.

Abstract: A low-contaminative hose which permits a fluid to be passed through with minimized fluid contamination, and a rubber composition used to produce such a hose. The low-contaminative hose is formed from the rubber composition that includes, as essential components, at least one rubber selected from an ethylene-propylene-diene terpolymer, an ethylene-propylene copolymer and a silicone rubber, a peroxide vulcanizing agent, and a filler having a laminar crystal structure.

Abstract: A brake hose comprises reinforcing layers in a rubber base. The brake hose comprising an inner tube rubber layer that is made of a rubber material and has a flow path for flowing fluid; a lower yarn layer formed by braiding lower yarn around the inner tube rubber layer; an intermediate rubber layer made of a rubber material and located around the lower yarn layer; an upper yarn layer formed by braiding upper yarn around the intermediate rubber layer; and a cover rubber layer formed around the upper yarn layer. The intermediate rubber layer is formed from a sheet material having a Mooney viscosity of 10-40 Mv (minimum Mooney value) at 145° C.

Abstract: An object of the present invention is to provide ultra-low permeation hoses which have at the interior thereof a refrigerant barrier layer that consists in large part of a metal layer and is capable of conforming to hose deformation, which have an excellent resistance to refrigerant permeation (i.e., barrier properties to refrigerants), particularly an excellent CO2 permeation resistance and an excellent heat resistance when CO2 is used as the refrigerant. The object can be accomplished by an ultra-low permeation hose having at least a refrigerant barrier layer and a rubber layer and/or a resin layer; wherein the refrigerant barrier layer is a laminated film comprising a resin layer and, on the outside thereof, a metal layer, which the resin layer and the metal layer are bonded together by a polyamide-epoxy reactive adhesive.

Abstract: An ultralow expansion brake rubber hose comprising an inner rubber tube, a first reinforcing layer, a second reinforcing layer and an outer rubber layer, wherein a thermosetting resin which penetrates the reinforcing fibers constituting the first reinforcing layer and which is cured at vulcanizing temperatures is cured by vulcanization to turn the first reinforcing layer into a solid cured layer. By turning the first reinforcing layer into the solid cured layer, the mutual slippage between the reinforcing fibers of the first reinforcing layer can be prevented, and a brake rubber hose having low expansion and excellent durability can be obtained.

Abstract: A vibration absorbing rubber hose having a laminar structure including an inner rubber layer, a reinforcing layer, and an outer rubber layer, which layers are laminated integrally with one another in the order of description in a radially outward direction of the rubber hose, wherein the inner rubber layer is formed of a butyl rubber material and/or a halogenated butyl rubber material while the outer rubber layer is formed of an EPM material consisting of ethylene-propylene copolymer.

Abstract: A cryogenic fluid system having a flexible conduit for conducting cryogenic materials and a method for fabricating such a flexible conduit is herein disclosed. The flexible conduit of the cryogenic fluid system generally includes a first tube and a second tube disposed about the first tube. The first and second tubes can be made from the same or different materials (including composites) as long as the material which makes up at least one of the first and second tubes is silicone rubber-impregnated glass cloth. The flexible conduit also generally includes a fluorocarbon polymer liner disposed against a first inner wall of the first tube, so that the first tube is positioned between the second tube and the fluorocarbon polymer liner. Some variations of the flexible conduit have an annulus between the first and second tubes which optionally is occupied, at least in part, by insulation.

Abstract: A heat-resistant multi-layer hose is described. The hose includes inner and outer elastomeric layers, and an intermediate reinforcing layer. The inner and outer layers each include a substantial fraction of ethylene-octene copolymer, and may include one or more compatible polymers such as EPDM, chlorosulfonated polyethylene, and chlorinated polyethylene. The use of relatively large amounts of ethylene-octene copolymer results in improved high heat resistance.

Abstract: A hose for use in automotive power steering applications is disclosed. The hose has an inner tube, at least one reinforcing layer, and a cover layer. The inner tube is formed of at least an innermost rubber layer and an adjacent thermoplastic layer. The thermoplastic layer is formed of a material with a modulus three to ten times greater than the modulus of the innermost rubber layer.

Abstract: A low permeable hose having at least a refrigerant barrier layer and a rubber layer is provided. The barrier layer is a laminate film having a structure such that resin layers sandwich a metal layer therebetween and having an elongation at breakage of 10% or more. The outermost layer of the resin layer may be an adhesive layer composed of a phenol resin based composition. The hose can be produced by heating the refrigerant barrier layer and the rubber layer to a temperature no lower than the melting point of a resin that constitutes the resin layers to melt the resin and vulcanizing said rubber layer, or, laminating an adhesive layer composed of a phenol resin based composition and the rubber layer, thereby splicing the refrigerant barrier layer and the rubber layer.

Abstract: An amount of expansion of a hydraulic pressure hose is decreased and the fatigue characteristic against repeating pressurization, bending and twisting is improved. The hydraulic pressure hose comprising an inner rubber layer, a first braided fiber reinforced layer formed in the outer periphery of the inner rubber layer, an intermediate rubber layer formed in the outer periphery of the first braided fiber reinforced layer, a second braided fiber reinforced layer formed in the outer periphery of the intermediate rubber layer and an outer rubber layer formed in the outer periphery of the second braided fiber reinforced layer, wherein the first braided fiber reinforced layer is formed of fibers having 950 deniers to 1050 deniers, the thickness of the first braided fiber reinforced layer being 0.30 mm to 0.50 mm.

Abstract: The present invention provides a heat resistant fuel hose comprising a rubber inner pipe with an inner layer and an outer layer in the inner pipe. The inner layer of the inner pipe comprises a hydrogenated acrylonitrile butadiene rubber (H-NBR) that is mixed with zinc oxide (ZnO) and magnesium oxide (MgO) as acid acceptors and is peroxide vulcanized. The outer layer of the inner pipe comprises an epoxy cross-linking type acrylic rubber (ACM) that has been vulcanized bonded to the inner layer of the inner pipe. The inner layer and outer layer of the inner pipe of the heat resistant fuel hose of the present invention are strongly bonded, and the rubber inner pipe has excellent heat resistance.

Abstract: A brake hose includes two reinforcing layers in a rubber base. The brake hose comprises an inner tube rubber layer having a flow path for flowing fluid, a lower yarn layer formed by braiding first yarns around the inner tube rubber layer and an upper yarn layer formed by braiding second yarns around the lower yarn layer and a cover rubber layer covering the upper yarn layer. A lower yarn layer duty LD given by the equation, LD(%)=(LRP/PRP)×100, has a value of 50-65%, where LRP denotes an inner pressure at which a brake hose without the upper yarn layer and the cover would burst, and PRP denotes an inner pressure at which the brake hose would burst.