Abstract: A pipe connecting structure which can prevent electrical charge of a plastic coated metal pipe using a simple structure. The structure includes beads 5a, 5b, 5c protruding from the outer surface of the end of a plastic coated metal tube 3, which is obtained by coating the outside of a bare metal pipe 1 with a nonconductive plastic film 2. The plastic film 2 is removed from the tip of the bead 5a to expose the circumferential surface of the bare metal pipe 1, the exposed portion is made to contact the inner surface of a conductive tube 4, and the plastic coated metal tube 3 and the conductive tube 4 are connected together.

Abstract: A submersible pump drop pipe and casing assembly and method of manufacture is disclosed. The drop pipe/casing has a seated connector and base. The seated connector has a first and second sections, the first section being used to align and direct the base into the seated connector and to provide lateral strength to the pipe.

Abstract: A collet for locking a tube in a tube coupling body is moulded in plastics and comprises an annular collar having a plurality of arms extending from the collar generally parallel to the collar axis. Each arm has a head at its distal end spaced from the collar for engaging between a tube and coupling body to lock the tube in the coupling body. Different materials are used for the heads of the collet and the rest of the collet whereby the heads are stronger and relatively rigid whereas the rest of the collet is relatively flexible.

Abstract: A coupling device for a fluid pressure system comprises a housing (8) receiving a coupling body (2), and means for retaining the body (2) in the housing (8), the retaining means comprising a grab ring (36, 60, 61) having radially inner teeth (43) for engagement with the body (2) and radially outer teeth (44) for engagement with the housing (8), the grab ring (36, 60, 61) being mounted in a groove (39) in the body (2), and the grab ring (36, 60, 61) and the groove (39) being so constructed and arranged that on insertion of the body (2) into the housing (8) the outer teeth (44) are deflected by the housing (8), but on application of a removal force the grab ring (36, 60, 61) pivots in the groove (39), urging the inner teeth (43) into engagement with the body (2) and the outer teeth (44) into engagement with the housing (8).

Abstract: A fitting for formation of a fluid-conducting connection on a container (1) of plastic, in particular a tank for receiving a fluid, specifically a hydraulic fluid, has a connection part in the form of a hollow element (5) with a jacket (21). The jacket extends along a longitudinal axis of the hollow element (5) between its ends (7, 23). The hollow element (5) is embedded in the plastic of the wall (3) of the container (1). An open end (7) of the hollow element (5) on the edge of an opening (9) in the container (1) and at least one partial area of the jacket (21) of the hollow element (5) are enclosed by the plastic of the wall (3) of the container (1).

Abstract: A water pipe includes a pipe main body made of a synthetic resin and an annular metal inner piece inserted into an end of the pipe main body. The inner piece has its diameter increased from the inside of the pipe main body so as to increase the diameter of at least a part of that portion of the pipe main body which corresponds to the inner piece. The inner diameter of the inner piece the diameter of which has been increased is almost the same as that of a portion of the pipe main body which is not enlarged by the inner piece.

Abstract: The invention relates to a polymer mixture of partially crystalline aliphatic polyamides and partially aromatic polyamides, the proportion of aliphatic polyamides being more than 50% by weight and the quantitative ratio of the aliphatic carbon atoms to amide bonds in the aliphatic polyamides being in the range of 8:1 to 12:1 and the partially aromatic polyamides, which are present in deficit, having, in addition to hexamethyleneterephthalamide (6T) units, further partially aromatic and/or aliphatic amide units and being predominantly partially crystalline. The invention relates furthermore to the use of polymer mixtures of this type for various application fields, in particular for express couplings or connectors for fuel lines.

Abstract: An apparatus is provided 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 connector for connecting a terminal end of a heating duct to a heating duct board, the connector including an annular cylindrical portion with an outer surface and a maximum outer diameter and a flange extending radially outwardly from the outer surface of the annular cylindrical portion. The flange has a dimension greater than the maximum diameter forming an abutment against which a lower edge of the heating duct board abuts. The flange also has at least one sleeve for receiving a zip tie. The connector includes retention means for securing the connector to the heating duct board with the heating duct board encircling the annular cylindrical portion and being in abutting engagement with the flange. The retention includes at least one zip tie mounted through the at least one sleeve of the flange and engageable in a mouth of the heating duct board to which the connector is secured.

Abstract: A hollow plastic product including a hollow main body, a reinforce member and a connector pipe is provided. Such a hollow plastic product is, for example, used advantageously as a component of an air-intake system or fuel supply system of an automobile. In one example, the hollow main body is a duct, hose or tube extending over a length, and the reinforce member is ring-shaped so that it extends around a circumference of an outer surface of the hollow main body. The reinforce member is manufactured by injection molding and is used as an insert when blow-molding the hollow main body, so that the reinforce member is integrally formed with the main body. The reinforce member has a defined welding surface formed with a first hole, to which one end surface of a connector pipe is thermally welded. Then the hollow main body is formed with a second hole in alignment with the first hole, thereby defining a fluidic communication between the hollow main body and the connector pipe.

Abstract: A joint part including a welding portion having excellent weldability with a rim of an opening of a fuel resin tank as well as a high barrier property on its interface. The joint part has a multi-layer structure including a barrier layer and at least one of an inner layer and an outer layer coaxially laminated on an inner periphery and/or an outer periphery of the barrier layer, respectively, wherein the barrier layer is formed by a compound material composed of one or more of fuel permeation-resistant resin, such as EVOH, PA, polyester or LCP, and polyethylene, while the inner layer and the outer layer are composed of HDPE or modified HDPE.

Abstract: A tube joint for a fuel tank includes a joint body having a tubular shape, and a barrier layer covering the inner surface of the joint body. The joint body is formed of a material which is weldable to a tank body, and the barrier layer is formed of a material which has fuel impermeability and a predetermined hardness. The barrier layer has an extension portion extending from a distal end of the joint body along an axial direction of the joint body. The extension portion includes a projecting portion which protrudes radially and outwardly of the extension portion at or adjacent to a proximal end of the extension portion such that a seal groove is formed between the projecting portion and the joint body, and a nail portion which protrudes radially and outwardly of the extension portion at or adjacent to a distal end of the extension portion.

Abstract: A submersible pump drop pipe and casing assembly and method of manufacture is disclosed. The drop pipe/casing has a seated connector and base. The seated connector has a first and second cylinder section, the first cylinder section being used to align and direct the base into the seated connector and to provide lateral strength to the pipe.

Abstract: A drain seal for connecting a drain tube to a support structure includes a molded unitary body having first and second moldingly joined portions, each formed of dissimilar durometer materials. The first portion is formed to sealingly join the body to a drain tube. The second portion is formed to mount the body in an aperture in a support structure. A bore extends completely through the body.

Abstract: A tubular socket for connecting a fluid conduit to a thermoplastic container has first and second thermoplastic parts connected to one another by a multi-component injection molding process. The first part has a smaller creep tendency under pressure load and a smaller swellability relative to hydrocarbon-containing fluids than the second part. The second part is fusion-welded to the container. The second part contains a reinforcement filler that is selected such that the creep tendency and swellability of the second part are approximately the same as that of the first part. A connection strength between the second part and the container is at least as high as that between first and second parts. A thermal shape stability of the second part is at least the same as the thermal shape stability of the container and at most approximately the same as the thermal shape stability of the first part.

Abstract: The invention relates to a coaxial two-component cartridge, with an outer tube and a separate inner tube, both of which tape at one respective end into a respective neck, wherein the inner side of the neck of the outer tube and the outer side of the neck of the inner tube are each provided with locking elements that can be moved into engagement with each other, for a coaxial introduction of the inner tube into the outer tube, such that they fix the inner tube relative to the outer tube coaxially and in a predetermined axial position. The coaxial two-component cartridge distinguishes itself in that the locking elements of the neck of the outer tube are formed by a plurality in the axial direction of successive channels, and the locking elements of the neck of the inner tube are formed by a plurality in the axial direction of successive ribs integral with the neck, and the outer diameter of the neck of the inner tube including the ribs is at least as large as the clearance diameter of the channels.

Abstract: A flexible synthetic resin coupling is provided which is substantially self-sustaining in an initial configuration but provides sufficient resiliency and flexibility to absorb substantial loading, thereby accommodating relative movement between pipes and/or tanks to which it is connected. The coupling includes a conduit having two ends with a coupling positioned at at least one of the ends. The conduit is configured to have a total curvature of at least 270°, and may be configured to have a central axis of the flowpath defined by the passage within the conduit lie in a serpentine configuration in a single plane or alternatively to loop and lie in more than one plane.

Abstract: An cylindrical convex portion of which opposite ends are open is integrally formed onto a fuel tank made of HDPE therewith so as to inwardly extend in the fuel tank to provide an opening thereon. A press-fit portion of a filler hose connecting pipe made of PA as a tubular member is press-fitted in the cylindrical convex portion to connecting the tubular member to the fuel tank. At least one continuous annular projection is provided on the outer peripheral surface of the press-fit portion of the tubular member so as to bite into the inner peripheral surface of the cylindrical convex portion to provide continuous circumferential contact. A face of the annular projection in direction axially of one end of tubular member is formed so as to extend outwardly and inclinedly with respect to the axial direction of the tubular member form one end toward the other end thereof.

Abstract: A connector and tubing assembly including a multi-lumen molded connector having at least three flexible tubes also molded into the connector. The connector may be “Y” shaped and include three flexible tubes. A process of making the connector and tubing assembly involves forming a first part of the connector with two tubes molded therein and then removing an internal mold member prior to molding the final connector portion and third tube in place.

Abstract: A fuel tank connector for connecting a fuel tank and a pipe in communicating fashion includes a gas barrier member made of a synthetic resin and having a gas barrier property. The gas barrier member includes a tubular portion and a flanged portion provided on a peripheral side of the tubular portion, which extends beyond an opening of the fuel tank. The gas barrier member is made of a liquid crystal polymer, aromatic polyamide, a blended polymer of an ethylene-vinyl alcohol copolymer and high-density polyethylene, a blended polymer of polyamide and polyethylene, or a blended polymer of polyamide and high-density polyethylene.

Abstract: A tubular coupling element for producing a glued joint with a fluid line and a method for producing such a glued joint. The coupling element includes an inner tube that is insertable into a fluid line and an outer tube that is constructed concentric to the inner tube and integrally connected to the rear end of the inner tube by a connecting wall. An annular gap is present between the two tubes and is designed to receive an end section of the fluid line and a hot-melt type adhesive in a compacted solid form shaped as a ring. A connection between the coupling element and the fluid lines can be easily established by first introducing the adhesive in the annular gap and then melting it by rapidly supplying heat while the end section of the fluid line is pressed into the annular gap of the coupling element.

Abstract: A strengthened pipe fitting has an internally threaded surface and a compression band. The compression band is sized to compress the internally threaded surface sufficiently so that the pipe fitting is subjected to a compressive preload. The compression band is covered with a non-corrosive material.

Abstract: A tubular assembly that includes a plug (45) residing within at least a portion of each of a first tube (12) and a second tube (30), is described. Each of the first and second tubes have perforations (21 and 39) that are separately aligned with cavities (51) in the exterior surface (48) of the plug (45). Plastic material (54) is molded separately through the perforations (21 and 39) of the first and second tubes (12 and 30) and at least partially fills the cavities (51) of the plug (45). The edges (24) of the perforations (21) of the first tube (12), and the edges (42) of the perforations (39) of the second tube (30) are embedded in the plastic material (54) extending therethrough, thereby fixedly attaching the first and second tubes to the plug therein.

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: The invention provides a pipe joint made of resin in which a predetermined pressing force in the axial direction corresponding to a fastening torque of a union nut can be obtained, and the strength of threads can be enhanced. Each of the threads of an external thread portion of a joint body and an internal thread portion of a union nut is formed asd an asymmetrical trapezoid, an inclined angle ?1 of first flanks of the asymmetrical trapezoidal threads which contact with each other by fastening the union nut is set to 70 to 90°, and an included angle ?2 of the flanks opposite to the first flanks is set to 40 to 80°, and wherein the joint body defines a sealing portion the angle and direction of taper of which is defined by an angle ?0, said external thread is defined by an angle ?1, where ?1=?1 and wherein ?0<?1 and |cos ?0|>|cos ?1|.

Abstract: A system and kit of components for winterizing plants and trees, where the invention comprises a skeletal frame formed by plural first tubular members, each having an upper end and a lower end. When assembled, the respective lower ends are spaced apart and positioned vertically and anchored within the ground surrounding the plant or tree. Joined between adjacent first tubular members are plural second tubular, horizontally oriented, members to form a generally square skeletal frame. About the skeletal frame is a light-transmitting plastic wrap. Overriding the skeletal frame is a top frame, preferably pivotal about a pair of upper ends, to allow access to the protected plant or tree. Additionally, the invention contemplates a cover, such as a plastic wrap or canvas-like material over the top frame to ensure complete protection of the plant or tree.

Abstract: A connector for a fuel tank includes a flange portion, an outer connecting portion to be connected to a pipe member and an inner connecting portion to be inserted into a fuel tank through a connecting opening of the fuel tank. The inner connecting portion has an engaging portion to be engaged with an engaged portion provided to a member when the member is to be disposed in the fuel tank. The flange portion includes an outer flange member made of a synthetic resin same as that of an outer surface of the fuel tank, and an inner flange member made of a synthetic resin having a gas barrier property and a rigidity higher than that of the synthetic resin constituting the outer flange member. The inner connecting portion and the inner flange member are made of the same material.

Abstract: Glass modules for use in the assembly of equipment, installations and for pipe works, the surfaces of which are entirely or partially coated with a conductive coating, in particular from transparent conductive polymers for the purpose of reducing surface resistance, their use, as well as the equipment, installation and pipe works made therefrom.

Abstract: A method of forming a gas impermeable joint in a fluid system includes: providing a tube having a metallic barrier layer disposed between an inner plastic layer and an outer plastic layer; forcing at least one of the inner plastic layer and the outer plastic layer into contact with a plastic surface of a component; and welding the at least one of the inner plastic layer and the outer plastic layer with the plastic surface to form the gas impermeable joint. The welding may include: spin welding, hot plate welding, vibration welding, and ultrasonic welding. The metallic barrier layer extends substantially to the component, thus improving the gas impermeability of the joint between the tube and the component.

Abstract: A welded structure constituted of a fuel filling container having an opening, and a welded part including a pipe-shaped section whose one end is disposed in the opening of the fuel filling container. A welding section is fixedly disposed around the outer periphery of the pipe-shaped section. The welding section is welded through a welding surface to the outer surface of the fuel filling container. In the welded structure, the welding section of the welded part includes a welding strength providing layer and a fuel permeation resistance layer which are coaxial with the pipe-shaped section of the welded part and radially laminated to define the annular welding surface. Additionally, at least an inner peripheral surface portion of the pipe-shaped section and an outer peripheral surface portion of the other end portion of the pipe-shaped section are formed of a fuel permeation resisting material.

Abstract: In order to attach a fuel system component such as a pipe nipple to a fuel tank having a polyethylene outer layer, the fuel system component is made from a first material which may have desirable characteristics such as resistance to creep, but which may not be easily weldable to the polyethylene outer layer of the tank. The flange member is used for attachment to the body portion of the fuel system component by welding and for attachment to the polyethylene layer of the tank. To inhibit hydrocarbon vapour flow through through the flange member, the flange member includes a barrier layer which extends from one side of the flange to the other and which surrounds the central aperture. In another embodiment of the invention, the flange member is made from a material which has the necessary barrier properties.

Abstract: A one-piece polyolefin connector or polymeric blend connector with the characteristics of a polymer having the specific density of between 0.90 and 0.96 g/cc capitalizing on the aspect ratio of the connector and angularity of the sealing surface in combination for use in applications less physically demanding than those for use with crosslinked polyethylene material.

Abstract: An apparatus for creating a permanent, leak-proof plastic tubing joint including a length of plastic tubing, a fitting component and a device capable of generating a local electromagnetic field. The fitting component is manufactured of a polymer containing nonpolymeric particles capable of absorbing a specific frequency of electromagnetic energy. An end of the length of plastic tubing is slidably inserted into the fitting component. When the tubing has been fully inserted, a device is activated to generate a local electromagnetic field surrounding the fitting component. The nonpolymeric particles absorb the electromagnetic energy and increase in temperature. This temperature increase causes the fitting component to begin melting at the interface with the plastic tubing while at the same time causing the end of plastic tubing to become pliable. The electromagnetic field is then removed and both the fitting component and the end of plastic tubing cool to ambient temperature.

Abstract: Connection structure for connecting a piping used in automobiles or the like to a ring joint for providing highly reliable gas-tightness. The ring joint includes a ring joint body including a fitting hole for an eyebolt, the fitting hole being piercingly formed in an axial core portion of the ring joint body and in continuation from an annular recessed groove formed inside the ring joint body, and a flow path extending in a direction perpendicular to and intersecting with the fitting hole. A branch pipe is formed as a unitary body with the ring joint body and arranged in a direction perpendicular to and intersecting with the eyebolt. A piping for insertion into the branch pipe has an outer peripheral surface covered with resin, and the resin of the outer peripheral surface of the piping and an inner peripheral surface of the branch pipe are fixedly welded to one another.

Abstract: A tubular socket for connecting a fluid conduit to a thermoplastic container has first and second thermoplastic parts connected to one another by a multi-component injection molding process. The first part has a smaller creep tendency under pressure load and a smaller swellability relative to hydrocarbon-containing fluids than the second part. The second part is fusion-welded to the container. The second part contains a reinforcement filler that is selected such that the creep tendency and swellability of the second part are approximately the same as that of the first part. A connection strength between the second part and the container is at least as high as that between first and second parts. A thermal shape stability of the second part is at least the same as the thermal shape stability of the container and at most approximately the same as the thermal shape stability of the first part.

Abstract: A quick-acting closure (1) for connecting a mixer tube (3) and a connecting part (2) of an extruder unit. The connecting part (2) has a connector (9) with a conical threaded base member, on which an external thread (12) is arranged. The mixer tube (3) has a conical threaded base member, on which an internal thread (19) is arranged. The internal thread (19) on the connector part (16) of the mixer tube (3) is a multi-path internal thread.

Abstract: In a tube device of the invention, a casing 1 made of a fluororesin has: a tube 4 which is made of a fluororesin, and which surrounds a fluid tube 3; lid members 5 which are made of a fluororesin, and each of which includes a receiving portion 8 for receiving one end portion of the tube 4, at least one sealing face 10 disposed in the receiving portion, and a connecting portion 29 for another pipe 28; union nuts 6 which are made of a fluororesin, and each of which is fitted onto the end portion of the tube 4, and screwed to one end portion of one of the lid members 5; and a sealing portion 19 which is formed at least one place by fastening the union nuts 6 to the end portions of the lid members 5 to press the tube 4 from the outside of the tube, the end portions of the tube 4 and the sealing faces 10 of the lid members 5 being closely contacted with each other by the pressing function. A device element such as a filter member 3 is placed in the casing 1.

Abstract: A seal plate includes tear out sections that leave pipe sealing openings, an externally threaded cylindrical portion that extends through a hole in a septic system distribution box wall, a resilient cup-shaped flange that faces one side of the wall around the hole, an internally threaded ring with hand grips that is screwed onto the cylindrical portion against the other side of the wall so that the wall is clamped between the ring and the cup-shaped flange and the flange bends axially, resiliently forcing concentric radially spaced axially extending ridges on the cup shape flange sealingly against the wall.

Abstract: A coupling for fuel system components including a female connector having an elongated tube portion that terminates in an opening for receiving a male connector. The opening has an inner diameter that is less than the outer diameter of the male connector such that the female connector stretches to accommodate the male connector and thereby form a seal. The female connector has a unitary structure formed by injection molding of a somewhat resilient plastic material.

Abstract: A connector and tubing assembly including a multi-lumen molded connector having at least three flexible tubes also molded into the connector. The connector may be “Y” shaped and include three flexible tubes. A process of making the connector and tubing assembly involves forming a first part of the connector with two tubes molded therein and then removing an internal mold member prior to molding the final connector portion and third tube in place.

Abstract: A method for sealingly coupling a first component and a second component. The method includes forming a polymer male portion attached to the first component. The male portion has a first axis and a first bore extending therethrough. The male portion has a first stop surface, a second stop surface and an annular sealing portion intermediate the first stop surface and the second stop surface. The method also includes forming a polymer female portion attached to the second component. The female portion has a second axis and a second bore extending therethrough. The female portion has a third stop surface, a fourth stop surface and an annular ring intermediate the third stop surface and the fourth stop surface. The male portion is urged towards the female portion so that at least one of the first stop surface is adjacent the third stop surface or the second stop surface is adjacent the fourth stop surface.

Abstract: The invention relates to a connecting element (1) comprising a first body with a through-going axial opening (3) situated in the first body (2) for liquid communication between the first end portion (4) of the first body (2) and the second end portion (5) of the first body (2), said first end portion (4) comprising a cavity (6), and wherein the cavity (6) comprises a female part (9) with a through-going opening (10) and manufactured from a first plastics material and comprising an inner area (35) for mounting of a tube (24) by means of first attachment means (8); and wherein the first body is manufactured from a second plastics material different firm the first plastics material.

Abstract: A method of and an apparatus for rejuvenating a wastewater treatment system of the type including a septic tank, an aerobic treatment unit or the like connected by a pipe to a plugged downstream soil absorption system includes a wastewater treatment unit which is interposed between the septic unit/aerobic treatment unit and the downstream soil absorption system. The wastewater treatment unit includes a single piece or a multiple piece solids settling and retention basin within which is suspendingly supported a wastewater treatment mechanism essentially of the type disclosed in U.S. Pat. No. 5,264,120. The wastewater treatment mechanism includes filters for filtering and settling solids from wastewater and flow equalization ports for effecting flow equalization thereby eliminating flow surges to the downstream plugged soil absorption system.

Abstract: A tube joint comprises a joint body which is provided with an attachment/detachment mechanism for attaching/detaching a fluid tube and which is formed of a resin material, and a bellows section which has annular projections and annular recesses alternately formed to be continuous in an axial direction and which disperses external force (impact force) applied to an outer surface of the joint body to avoid any concentration of stress.

Abstract: A fuel pipe joint having excellent fuel permeation resistance, particularly a fuel pipe joint for use in automobiles, which can greatly reduce the amount of fuel permeated through the wall and exhibits excellent rigidity and fuel barrier property even at high temperatures, the fuel pipe joint using a joint material comprising a polyamide (nylon 9T) consisting of a dicarboxylic acid component and a diamine component, with 60 to 100 mol % of the dicarboxylic acid component being a terephthalic acid and 60 to 100 mol % of the diamine component being a diamine component selected from 1,9-nonanediamine and 2-methyl-1,8-octanediamine. The joint material preferably further comprises a reinforcement and/or an electrically conducting filler. The electrically conducting filler preferably has an aspect ratio of 50 or more and a short diameter of 0.5 nm to 10 &mgr;m.

Abstract: A submersible pump drop pipe and casing assembly and method of manufacture is disclosed. The drop pipe/casing has a seated connector and base. The seated connector has a first and second cylinder section, the first cylinder section being used to align and direct the base into the seated connector and to provide lateral strength to the pipe.

Abstract: Rigid corrugated plastic pipe sections are provided with a flange radially extending from at least one end of the pipe length, which allows structural and water tight joints between connecting flanged pipes and fittings to be formed in an assembly including a peripheral clamp and gasket, and a system, method and kit for effecting structural and water tight joints in corrugated plastic pipe pipes.

Abstract: A fuel tank connector for connecting a fuel tank and a pipe in communicating fashion includes a gas barrier member made of a synthetic resin and having a gas barrier property. The gas barrier member includes a tubular portion and a flanged portion provided on a peripheral side of the tubular portion, which extends beyond an opening of the fuel tank. The gas barrier member is made of a liquid crystal polymer, aromatic polyamide, a blended polymer of an ethylene-vinyl alcohol copolymer and high-density polyethylene, a blended polymer of polyamide and polyethylene, a blended polymer of polyamide and high-density polyethylene.

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: The present invention relates to a pipe joint made of resin used for laying pipes in which a high-purity liquid, ultra pure water or the like flow. According to the pipe joint of the present invention, a sealing surface pressure is generated in both axial and radial directions, providing thereby an excellent sealing property for a long period, and facilitate controlling a torque for fastening a pushing ring. The pipe joint made of resin according to the present invention comprises a joint body having a receiving port, a cylindrical portion, an annular groove portion and a stepped surface. An inner ring forcedly inserted by the pushing ring is provided with an outer projection, an inner projection and an annular recessed portion. On at least one portion among axially opposed portions of each surface, an axial sealing portion is disposed. On at least one portion among radially opposed portions of each surface, an radial sealing portion is disposed.