Abstract: The spiral pipe joint comprises a nipple 1, a caulking ring 2 and a flexible string-shaped pressure contact member 3. After an inserting portion 11 of the nipple 1 is inserted into a pipe body P, the pressure contact member 3 is wound once or more times around the outer peripheral surface of the pipe body P existing above the inserting portion 11, and the caulking ring 2 is placed on the outside of the thus wound pressure contact member 3 and is compressed in the center direction of the pipe body P to thereby reduce the diameter of the caulking ring 2 in such a manner that the caulking amount thereof on the small-diameter stepped portion 13 is larger than the step level difference between the inserting portion 11 and small-diameter stepped portion 13.

Abstract: A pipe construction kit comprises two pipe sections in the form of twin-wall pipes. A spigot is formed on one end of a pipe section, while a socket is formed on the associated end of the other pipe section. The socket and the spigot are twin-wall pipes, having predominantly smooth-walled internal pipe sections and corrugated external pipe sections with elevations and troughs. The outside diameter of the pipe sections and the outside diameter of the socket are approximately equal.

Abstract: A pipe structure includes an annular corrugation centered on an axis. The corrugation has a cylindrical liner centered on the axis, two annular sidewalls extending radially outward from axially opposite ends of the liner, and an annular crown extending axially between radially outer ends of the sidewalls. An annular cavity is centered on the axis and is bounded by the liner, the sidewalls and the crown. A structural filler is contained within the cavity.

Abstract: A pipe joint assembly joins two double wall pipe sections together. The pipe joint assembly includes a first pipe section having at least one double wall corrugation on an end portion, a second pipe section having at least one double wall corrugation on an end portion and a joint formed by locating the first pipe section end portion and the second pipe section end portion in an overlapping relationship. The pipe joint assembly substantially increases the strength of the joint relative to conventional pipe assemblies.

Abstract: An in-line bell pipe is provided, formed by joining at least two corrugated sections of pipe having male and female portions to connect the corrugated sections. Each corrugated section has a plurality of first corrugations, each having a crest and a valley with the distance between the crest and valley of the first corrugations being a first distance. The male portion of each corrugated section has at least one second and one third corrugation, each second and third corrugation respectively having a distance between the crest and valley of each being a second and third distance respectively. At least one third corrugation crest has a recessed area which accomodates a sealing element retained between the recessed area and the female portion. The second and third distances each are less than the first distance. The female portion telescopically receives at least one third corrugation and at least a portion of a second corrugation.

Abstract: A device for joining two tubular elements composed of two complementary parts extending end portions of the tubular elements, the two complementary parts each including an essentially rigid substantially conical flared part extended by a semitoric flange, with the semitoric collars being capable of interlocking together.

Abstract: A grout vent for a tendon-receiving duct having a tubular fitting with an interior passageway, a nut secured around an exterior surface of the tubular fitting, and a seal extending around the tubular fitting and residing against a surface of the nut. The tubular fitting has a connector at an end thereof for engaging an interior surface of the duct. The tubular fitting extends through a hole formed in a corrugation of the duct so that a shoulder of the connector will abut an interior surface of a wall of the duct. The nut is threadedly engaged with an exterior surface of the tubular fitting so as to exert a compressive force against the seal. A grout line extends through the interior passageway of the tubular fitting so as to allow grout to be injected into an interior passageway of the duct.

Abstract: An annular gasket for providing a fluid-tight seal between a corrugated pipe and a smooth annular section of a second member. The gasket includes a support portion and a gasket portion. The support portion is made from a first material having a first hardness. The support portion includes an anchor portion shaped to fit within a recess or groove in a first member and a tip portion that extends radially outward from the anchor portion. The gasket portion is made from a softer elastomeric material. The gasket portion is disposed on the tip portion. The gasket portion is configured to make sealing contact with a ridge of the first pipe and the smooth annular section when the first pipe and the smooth annular section are in a relative surrounded and surrounding relationship.

Abstract: A hose connection comprises a hose (1), an elastic sleeve (2), a connection tube (3) and a stiff ring (4). The hose (1) is made of a thermoplastic material and has a smooth surface on the inside and exhibits helically formed running wave valleys and wave mountains on the outside. The elastic sleeve (2) is fixedly connected to the hose (1) and carried at one end of the hose (1) and has a front end. The connection tube (3) has recesses 3(a). The elastic sleeve (2) engages into the connection tube (3) in the destined position of the elastic sleeve (2). The elastic sleeve (2) is at its front end furnished with a sealing lip (2a) formed for sealing of the sleeve (2) against the connection tube (3). The sleeve (2) is gripped around by the stiff ring (4) axially fixed disposed on the sleeve (2) and made of a thermoplastic material and is axially aligned.

Abstract: The invention relates to a corrugated plastic pipe arrangement with a first preferably cylindrical pipe body, a second preferably cylindrical pipe body, and a connecting portion including first and second connecting parts respectively associated with one of the pipe bodies, whereby one connecting part includes an engagement extent and the other connecting part a holding region for holding the engagement extent in a holding position in which the pipe bodies are connected to one another.

Abstract: A one-touch joint for a flexible tube. A tapered surface is formed on the inner circumference of a fastening ring, and a ring-shaped retainer is positioned between the tapered surface and a seal member. When the flexible tube is inserted into the retainer, projections in the retainer are pushed open elastically by peak sections of a corrugated tube, and when a peak section has passed, the projections engage with a valley section of the corrugated tube. The joint and flexible tube can be coupled in a one-touch operation, simply by inserting the flexible tube. Moreover, excellent sealing properties and detachment prevention properties are obtained between the joint and the flexible tube.

Abstract: A diffusion-tight fluid conduit for hydrocarbon-containing fluids has a corrugated pipe of corrosion-resistant metal with a corrugated inner side and a corrugated outer side, wherein the outer side is exposed. An inner pipe of plastic material is arranged inside the corrugated pipe and has a smooth inner side and a smooth outer side. A first coupling member is seal-tightly connected by material bonding to a first end of the corrugated pipe.

Abstract: A sealed coupling system for flexible hose, such as corrugated hose, includes a termination fitting that mounts the sealed system to a static structure, such as a wall or the like. The system uses threaded connections to fix the hose to the fitting and to the structure and thus does not require welding, brazing or the like and has the main components thereof located on one side of the structure.

Abstract: A swivel coupling for attachment to a hose. The swivel coupling comprises a sleeve defining an aperture sized to received a retainer clip. The hose is formed with convolutions so that the retainer clip may be attached to the hose. When the hose is inserted into the sleeve, the retainer clip may be inserted into the aperture to secure the hose against axial movement yet the allow the hose to swivel.

Abstract: The spiral pipe joint comprises a nipple 1, a caulking ring 2 and a flexible string-shaped pressure contact member 3. After an inserting portion 11 of the nipple 1 is inserted into a pipe body P, the pressure contact member 3 is wound once or more times around the outer peripheral surface of the pipe body P existing above the inserting portion 11, and the caulking ring 2 is placed on the outside of the thus wound pressure contact member 3 and is compressed in the center direction of the pipe body P to thereby reduce the diameter of the caulking ring 2 in such a manner that the caulking amount thereof on the small-diameter stepped portion 13 is larger than the step level difference between the inserting portion 11 and small-diameter stepped portion 13.

Abstract: A spirally corrugated pipe elbow according to the present invention is constructed in such a manner that after a bend forming portion of a pipe body P having a given length and including a spirally corrugated pipe wall 1, with a partial portion a of the pipe wall 1 existing in the peripheral direction of the pipe body P left uncut, is cut and removed from the pipe body P in the form of a cut portion having a substantially V-like shape when it is viewed from the side surface side thereof, the thus obtained two cut surfaces are then bent and contacted with each other with the uncut pipe wall portion a set on the large diameter side, and the thus contacted portions t are connected together in a watertight manner using connecting material m. Accordingly, it is possible to provide an elbow having a structure free from the above water leakage and a method capable of manufacturing such elbow easily and quickly.

Abstract: A corrugated-pipe connector has a locking portion with a lip on one side of the locking portion facing the corrugated pipe. The locking portion in the closed condition of the connector is opposite to an interlocking portion. The lip extends along the locking portion and for more than 180° C. of the corrugated pipe circumference between two adjacent corrugated pipe corrugations. The end portions of the lip are closer to each other relative to the symmetric plane than the furthest spaced apart inner contours of the lip which are opposite to each other.

Abstract: An arrangement involving a screw connection for connecting two pipes. The arrangement has particular application for connecting a fuel filler pipe to a pipe that is connected to a fuel tank of a motor vehicle. At least one O-ring seal with excellent permeation resistance is clamped in between a resilient ring-shaped collar of a first pipe and an inner cone of a second pipe using a screw connection.

Abstract: A device for tightening a spout, attached to a previously installed angled pipe having an outside radius of curvature, in a position relative to a stop member having an opening through which at least a length of the pipe extends, comprising, at least one sleeve, comprises: at least a first leg and a second leg which meet at a juncture which defines an angle substantially corresponding to the angled pipe, wherein the first and second legs have a combined total length, wherein the first leg has a leg length and is substantially rigid along at least a portion of the leg length, has an inside radius of curvature that is approximately equal to or greater than the radius of curvature of the angled pipe, and wherein the sleeve has a slit, along the entire total length of the first and second legs, to allow the sleeve to be pressed onto and at least partially about the angled pipe; and a method for using the same.

Abstract: A coupling structure for a tube having first and second tube members coupled to each other includes a come-out preventing member adapted to be held at an outer periphery of the first tube member and restricted in its movement in a longitudinal direction of the first tube member at a tip end portion on a coupling side of the first tube member, and an engaging member adapted to protrude from an end portion on a coupling side of the second tube member. The come-out preventing member and the engaging member are respectively provided with first engaging portions and second engaging portions to engage the come-out preventing member and the engaging member to each other and to prevent the first and second tube members from being separated.

Abstract: A tube assembly for communicating water under pressure from a water supply valve and a water fixture inlet tube assembled at a job site, having an elongate corrugated tube with alternating grooves and ridges and cut to length to extend between a water fixture inlet tube and a water supply valve. The tube receives a pair of nuts in opposing relation, and each nut has an interior thread sized for engaging a respective one of a water fixture inlet tube and a water supply valve. A pair of C-clips, each received in a respective one of the grooves in opposing distal end portions of the tube, define bearing surfaces for the nuts. The distal ends of the tube receive a gasket, which are adapted for sealing between the respective distal end of the tube and the water fixture inlet tube and the water supply valve.

Abstract: A preassembled fitting including a body, a nut and a collet positioned within the nut. The nut is threaded on the body a predetermined distanced to allow the installer to snap the corrugated tubing into the nut and engage the collet. The nut is then further tightened to seal the body to the corrugated tubing. A tapered surface on the body engages the cut end of the corrugated tubing and flares the cut end of the corrugated tubing. The fitting will make a metal to metal seal by folding the convolutions of the tubing back against itself creating a double flare.

Abstract: A coupling for a corrugated conduit has a housing moulded of a rigid plastics material with two spring catches on opposite sides to engage between corrugations on the conduit. A continuous layer of a softer, elastomeric material is moulded on top of the rigid material extending on both the outside and inside of the housing. On the inside, the softer material extends on a tapering surface to seal with the end of the conduit. On the outside, the layer of softer material forms both a flange on an annular ledge to seal with a cooperating coupling and manual gripping regions.

Abstract: A hose coupling assembly wherein a hose 20 having a corrugated portion 22 is coupled to a fitting block 24 by a socket 50. The fitting block 24 has a block engagement catch 25c projecting from the outside rim of the block body 25. The socket 50 comprises a socket body 51 elastically expandable and contractible by being divided by a slit 51a, and a socket engagement catch 51b engages the block engagement catch 25c. To detach the socket 50 from the fitting block 24, force is applied in a rotation direction to a push operation portion 51c to cause the socket body 51 to undergo diametrical expansion, releasing the socket engagement catch 51b from the block engagement catch 25c.

Abstract: A tendon-receiving duct having a tubular body with an interior passageway and a plurality of corrugations extending radially outwardly of the tubular body. Each of the plurality of corrugations has an interior opening to the interior passageway. The tubular body has longitudinal channels formed on the tubular body so as to establish fluid communication between adjacent pairs of the corrugations. The tubular body is formed of a polymeric material. The channels are formed on the outer wall of the tubular body and open to the interior passageway of the tubular body and extend for the length of the tubular body.

Abstract: A flexible conduit element that is made out of an annular corrugated tube or an annular corrugated pipe and is provided with a connection device. The connection device 6 is located on one end of the flexible conduit element and includes a joining piece 2 that has an external threading 5 and is placed on the end of the flexible conduit element 1. A union nut 3 can be shoved onto the flexible conduit element 1 and screwed onto the outer threading 5 of the joining piece 2, and a clamping ring 4 that can be shoved onto the flexible conduit element 1, is arranged between and deformed by the joining piece 2 and the union nut 3.

Abstract: Thick-walled steel pipe is corrugated for the purpose of managing axial load when the pipe is used in an earth-restrained application. For example, the pipe may be used as casing in a cyclic steam stimulation well, where the axial loads are induced as the casing is heated and cooled.

Abstract: A corrugated hose (2) has a holder (1) to releasably fix the corrugated hose (2) in an angled or curved position in relation to a lengthwise projection of the inner tube, whereby the holder (1) fits snugly into at least one recess or corrugation valley (4) of the corrugated hose (2). The holder has two legs (5, 6), and the legs (5, 6) can snugly fit the corrugated hose (2) which curves between the two legs (5, 6) in a position ready for use. At least one of the snug fits is made with a cut-out (8) open at the side in which the corrugated tube (2) can be inserted from the side under elastic deformation (FIG. 1).

Abstract: A corrugated pipe joint for coupling corrugated pipes includes at least two joint components, each of which includes a joint main body made of a synthetic resin and including an arc-shaped portion and tightening projecting edges which are outwardly projected from circumferential end portions of said arc-shaped portion in a radial direction of the corrugated pipes to be coupled, and a watertightness-implementing packing made of an elastic material and assembled with the joint main body, the watertightness-implementing packing including an arc-shaped portion and flange edges projecting outwardly from circumferential end portions of the arc-shaped portion in the radial direction.

Abstract: A pipe structure includes an annular corrugation centered on an axis. The corrugation has a cylindrical liner centered on the axis, two annular sidewalls extending radially outward from axially opposite ends of the liner, and an annular crown extending axially between radially outer ends of the sidewalls. An annular cavity is centered on the axis and is bounded by the liner, the sidewalls and the crown. A structural filler is contained within the cavity.

Abstract: A hose end fitting that comprises an annularly corrugated imperforate metal tube, a fitting member fixed to an end of the tube, and, first and second resiliently compressible sealing members. The metal tube has axially spaced apart outer corrugation peaks and axially spaced apart inner valleys, each valley interposed between two of the peaks. Adjacent peaks and valleys are connected together by radially extending tube walls. The fitting member comprises a fitting body defining a through opening, a seal seat surrounding and extending outwardly from the through opening, and a tube compressing extension projecting from the fitting body.

Abstract: A connection for spirally corrugated piping sections of metal for material sold by length with a continuous cross section. The connection is produced without a separate sleeve in that the ends of two piping sections to be joined with each other are brought into a smooth cylindrical form, and one of the two ends is enlarged in relation to the other cylindrical end. The ends are fitted into each other, and mutual fixation takes place through a glue connection.

Abstract: A fitting for conduit comprising a body and an acceptor. The body has a wall and a throughbore. The acceptor is disposed along the wall and is capable of providing a sealing interface between the throughbore and the conduit. In one embodiment, the acceptor of the fitting receives a portion of at least one wall of a conduit, and a sealing interface is provided between the throughbore of the body of the fitting and a flow passage of the conduit to form a containment system. In another embodiment, the throughbore is capable of allowing a primary conduit and a flow passage of a secondary conduit to communicate therethrough. According to this embodiment, the acceptor receives a portion of a wall of the secondary conduit and a sealing interface is provide between the throughbore and the flow passage of the secondary conduit to form a secondary containment system.

Abstract: A joint (and method) connects synthetic resin corrugated pipes, each of the corrugated pipes including a pipe wall having sectionally rectangular wall portions and sectionally circular wall portions disposed alternately in a longitudinal direction of the corrugated pipe. The sectionally circular wall portions each include an annular-shaped protrusion projecting outwardly from the sectionally circular wall portions disposed substantially at a center of the sectionally circular wall portion between adjacent sectionally rectangular wall portions in the longitudinal direction.

Abstract: A locking annular gasket, for providing a seal between a tubular member and a smooth annular section, includes an annular gasket portion and a locking member. The annular gasket portion seals a gap between the smooth annular section and the tubular member. The locking member is secured to the gasket portion for holding the gasket portion in place while the tubular member and the smooth annular section are assembled.

Abstract: A corrugated pipe adapter for providing a sealing surface on a corrugated pipe includes a generally cylindrical sleeve having a generally smooth outer clamping surface and at least one protrusion. The protrusions include side walls and an arched structure between the side walls. The protrusions extend from an inside of the generally cylindrical sleeve. The side walls move outwardly against the corrugations on the corrugated pipe when pressure is applied to the generally smooth outer clamping surface.

Abstract: The connecting element (1) is equipped in the region of a connecting portion (5) with a seal (7) which is fixedly connected with the housing (3) of the connecting element (1). Staying elements (9) protect the seal (7) against undue pressing forces. Between the housing (3) and one end of a corrugated pipe (2) a seal (12) is also disposed, which is nondetachably connected with the inner shell (14) of the housing (3) of the connecting element (1).

Abstract: A sealing ring for sealing the connection of a spigot of a corrugated pipe with a pipe socket has inner beads and lip seals bearing against flanges. Said sealing ring further has an outwardly projecting sealing bead having a central annular bead and two annular collars projecting laterally outward. When said pipe socket is pushed onto said spigot, said sealing bead is rolled in in such a manner that said central annular bead and one annular collar bear against said inside wall of said socket in a sealing-tight fashion.

Abstract: A bellmouth with a joint including a cylindrical-shaped portion having a first opening disposed at its one end so as to spread in a trumpet-like shape, a second opening disposed at the other end of the cylindrical-shaped portion, an inclined cylinder which is formed adjacent to the second opening which is larger in diameter on a deep side than on an end face thereof, a securing stepped portion formed on a rear surface of the inclined cylinder, and a plurality of projecting portions respectively provided at a rear portion of the inclined cylinder.

Abstract: A synthetic resin pipe with a joint, includes a first pipe end portion to be connected, having an open guide cylinder, a large-diameter cylindrical portion formed in a deep portion thereof continuous with the open guide cylinder and having a diameter larger than front and rear walls extending in an axial direction of the synthetic resin pipe, and an outwardly facing projection disposed in a portion of the large-diameter cylindrical portion. A separately produced engaging ring including an inclined guide surface, having a large inside diameter on a width-direction one end face side thereof and having a small inside diameter on a deep side thereof, the engaging ring further including a securing stepped portion formed on the deep side thereof, a plurality of cut-out portions, respectively formed by cutting out the inclined surface, and a projection projecting from a portion of the outer peripheral surface of the engaging ring.

Abstract: An end-slotted flexible metal hose includes a hose section with body and end sections and a hose clamp. The hose section forms a bore therethrough having a relatively constant diameter. The end section includes a plurality of slots which extend through a sidewall of the hose section to the bore and permit the end section to be constricted by the hose clamp to reduce the bore diameter to provide a relatively tight engagement with a tube on which the hose assembly is mounted.

Abstract: A fitting for use with corrugated tubing. The fitting includes a first body having a first internal conduit therethrough and a first centerline. The first body has a plurality of fingers integral with the first body. The fingers are positioned radially about a periphery of the first body and each of the fingers is separated from an adjacent finger by a space. A second body which mates with the first body has a second internal conduit therethrough and a second centerline. The second body has a finger deflection surface for contacting the fingers and directing the fingers towards the first centerline.

Abstract: A pipe section formed of a polymeric material which has a substantially constant thickness throughout, the terminal edge of the female connection having a reinforcement structure which rigidifies the end of the female connection and prevents deformation, the pipe section preferably having a flared end, and the reinforcement structure preferably being a semicircular channel formed at the end of the pipe section by a mandrel after initial extrusion of the pipe section; along with a method and apparatus for forming the pipe section, a pipe assembly including such pipe section, and a method of forming the pipe assembly.

Abstract: A metal hose comprises a metal tube having an annularly corrugated wall, a fitting body, an extension that projects from the fitting body, and a sealing member. The fitting body defines a sealing seat for the sealing member. The extension projects from the body about the tube and defines a corrugation positioner distal the fitting body. The extension is deformed to shift the corrugation positioner toward engagement with the tube and resiliently compress the tube corrugations between the positioner and the sealing member. The resiliently compressed corrugations urge the sealing member against the seat for sealing the juncture of the fitting and the tube. In one embodiment a reinforcing shroud surrounds the tube and extends into the fitting. The fitting secures the shroud in place. The corrugation positioner compresses the tube corrugations through the shroud so the shroud is clamped and secured in place by the positioner at a location spaced axially from its end within the fitting.

Abstract: The connecting component or the connecting fitting (1) comprises at least one locking element which can be shifted-in and shifted-out radially to the longitudinal axis (14) of the fitting (1). The locking element is, for example, connected as a wing (7) via a hinge (22) with the fitting (1) or forms an additional element. On the inside face (10) of the locking element (7) are disposed a multiplicity of locking splice-clips (12) which are resilient. When a pipe end is slid into the fitting (1) with the locking elements (7) closed, these locking splice-clips (12) can be deflected. When load is applied against the insertion direction they become clawed in the pipe jacket. This embodiment permits the shifting-in or dosing of the locking elements (7) in a preassembly step and yet ensures a secure connection. The release of the connection through the radial shifting-out of the locking elements (7) is possible at any time.

Abstract: There is disclosed a spirally corrugated pipe-connecting connector which enables a pipe to be quite easily fixed rapidly to a handhole or the like, and maintains a sealed condition between the inside and outside of the pipe, and enables an electric cable or the like to be passed through the pipe immediately after the pipe connecting operation is completed. The connector includes a tubular connector body 1 including a distal end-side tubular portion 11 for fixing to a wall W, an outwardly-flaring, tapering portion 12 holding a packing member, and a spiral projection portion 13 which is fitted on the holder, and is threaded inversely to a spiral on a pipe P at a pitch smaller than a pitch of the spiral on the pipe P, the tubular portion, the tapering portion and the spiral projection portion being arranged sequentially in this order from the wall W toward the exterior of the wall.

Abstract: A footing connector has a first hollow leg and a second hollow leg integral therewith. The interiors of the two hollow legs are in fluid communication. The two legs cooperate to form, preferably, a T-shaped connector. The first leg has threading thereon, and, preferably, the second leg has threading thereon and protruberances therein, to enable connection to other elements of a drainage system. The second hollow leg may have end caps integral therewith at the ends thereof. The connector is used in a drainage network to drain water away from the outside of a building and to evacuate unwanted gasses from the inside of a building.

Abstract: A corrugated resin elbow comprises a corrugate-shaped synthetic resin pipe wall which includes a plurality of valley portions, a plurality of ridge portions and side surfaces respectively interposed between the valley portions and the ridge portions. At least one of the valley portions and the side surfaces which is disposed on the bend small diameter side of the substantially middle portion of the pipe wall in the longitudinal direction thereof is contractingly heated and deformed to thereby work the corrugate-shaped pipe wall into a bent attitude having a given angle.

Abstract: A connector for mounting a pipe member (P) having a spiral-shaped wall to a through hole (h) formed in a wall member (W), the connector comprises a bellmouth (1), a holder (2) and a waterproof packing member (3). The bellmouth (1) includes an engaging projection (13) which is formed on the outer periphery (12) of a cylindrical-shaped portion (11) thereof and is engageable with the inner peripheral surface of the pipe member (P). The holder (2) includes a spiral-shaped projection (23) which is formed on the inner peripheral surface (22) of a cylindrical-shaped portion (21) thereof and fittingly engageable with the outer periphery spiral-shaped portion of the pipe member (P). The waterproof packing member (3) is disposed between the wall member (W) and the holder (2).

Abstract: A connecting piece into which is axially insertable in an insertion direction a profiled pipe member having parallel external grooves, where the connecting piece includes a connecting sleeve having an entry end for receiving the profiled pipe member and defines a cylindrical wall with plurality of apertures extending radially therethrough, and a clamping ring which is axially displaceable in the connecting sleeve and which is provided with a plurality of pressure fingers extending approximately parallel to a longitudinal axis of the sleeve and which are pivotable about a pivot region. In a fixing position each of the pressure fingers is positioned generally adjacent a respective one of the apertures, each pressure finger having a projecting nose part which is engagable into one of the external grooves of the profiled pipe member.