Abstract: A pipe fitting includes a fitting body defining an inner surface, an outer surface, a first fitting end, and a second fitting end, the inner surface defining a channel extending from the first fitting end to the second fitting end, a portion of the inner surface defining a tapered region tapering towards the first fitting end; and an engagement assembly comprising a metal grip ring received in the channel, the metal grip ring defining a substantially frustoconical ring body, the ring body defining a diameter that tapers from a first lateral end of the ring body to a second lateral end of the ring body, the engagement assembly configured to slide along the tapered region.

Abstract: A pipe joint includes: a sealing member, having an annular shape, which is provided between the outer circumferential surface of a spigot and an inner circumferential surface of a socket; a pushing ring to push the sealing member into the socket, the pushing ring being fitted onto the spigot; and a separation preventive member configured to engage with the spigot protrusion part in a pipe-axial direction to prevent a separation of the spigot from the socket. The separation preventive member is provided between an inner circumferential surface of the pushing ring and the outer circumferential surface of the spigot. The sealing member is provided along an outer circumferential surface of the spigot protrusion part and includes a compression part. The compression part is compressed in a pipe-radial and is located, in the socket, upstream of the spigot protrusion part in an insertion direction in which the spigot is inserted.

Abstract: Some embodiments of a medical device anchor system include an anchor sleeve that receives a catheter (or other medical instrument) though a working channel of the anchor sleeve. The anchor sleeve may include a first actuator that controls the extension of one or more subcutaneous tines into the subcutaneous region under the skin. The anchor sleeve can also include a second actuator that can cause the anchor sleeve to lock onto an outer portion of the catheter (or other medical instrument) arrange in the working channel.

Abstract: Conduit connectors for liquid manifolds and methods of fabrication are provided. In one embodiment, a conduit connector is recessed, at least in part, within a liquid manifold, and includes a conduit-receiving opening or socket and at least one releasable retention component. The conduit-receiving opening is disposed within the liquid manifold and in fluid communication with at least one liquid-carrying channel of the liquid manifold. The releasable retention component(s) is selectively operative to threadlessly secure in a fluid-tight manner a conduit within the conduit-receiving opening in fluid communication with the at least one liquid-carrying channel of the liquid manifold to facilitate flow of liquid through the liquid-carrying channel(s), or to release the conduit from the conduit-receiving opening of the conduit connector. The releasable retention component(s) resides at least partially within the liquid manifold when operatively holding the conduit within the conduit-receiving opening.

Abstract: A fuel line of a turbo-machine having a conical screw connection, wherein the conical screw connection has at least one screw socket into which a sealing cone having a sealing cone surface and a sealing cone face of a screw connection body connected thereto is interlockingly inserted, and screw socket and screw connection body are directly or indirectly screwed to each other, wherein the sealing cone has a metallic, flat sealing element which is received in a receptacle of the sealing cone surface, wherein the flat sealing element is a metal which is softer than the material of the sealing cone.

Abstract: Some embodiments of a medical device anchor system include an anchor sleeve that receives a catheter (or other medical instrument) though a working channel of the anchor sleeve. The anchor sleeve may include a first actuator that controls the extension of one or more subcutaneous tines into the subcutaneous region under the skin. The anchor sleeve can also include a second actuator that can cause the anchor sleeve to lock onto an outer portion of the catheter (or other medical instrument) arrange in the working channel.

Abstract: Conduit connectors for liquid manifolds and methods of fabrication are provided. In one embodiment, a conduit connector is integrated, at least in part, within a liquid manifold, and includes a conduit-receiving opening or socket and at least one releasable retention component. The conduit-receiving opening is disposed within the liquid manifold and in fluid communication with at least one liquid-carrying channel of the liquid manifold. The releasable retention component(s) is selectively operative to threadlessly secure in a fluid-tight manner a conduit within the conduit-receiving opening in fluid communication with the at least one liquid-carrying channel of the liquid manifold to facilitate flow of liquid through the liquid-carrying channel(s), or to release the conduit from the conduit-receiving opening of the conduit connector. The releasable retention component(s) resides at least partially within the liquid manifold when operatively holding the conduit within the conduit-receiving opening.

Abstract: There is provided a mating assembly for mating a fiber-optic termination comprising a fiber-optic ferrule to an optical test instrument. The mating assembly comprises: a holding body having internal tubular dimensions substantially complementary to corresponding external dimensions of the fiber-optic ferrule of said fiber-optic termination, to hold the fiber-optic ferrule in a given alignment relative to the optical test instrument; and at least one deformable elastomeric feature extending inwardly in the holding body to frictionally engage on a smooth external surface of said fiber-optic ferrule and to provide friction thereon to retain said fiber-optic ferrule.

Abstract: A fitting includes a hollow body, a sealing member, and a draw mechanism. The fitting mechanism includes a primary actuation element coupled with the body at a first end, and a plurality of secondary actuation elements coupled to the sealing member. The plurality of secondary actuation elements are positioned in an interior of the hollow body and circumferentially spaced from each other. The plurality of secondary actuation elements are also engaged with the primary actuation element such that actuation of the primary actuation element draws the plurality of secondary actuation elements axially towards the opening at the first end of the hollow body thereby translating the sealing member from an open position to a sealing position.

Abstract: Disclosed herein is a back ferrule having a bellows-shaped elastic part. The back ferrule (40) is used, for pipe connection, along with: a connector body (10) having an external thread on an outer circumferential surface thereof; a drive nut (20) having an internal thread on an inner circumferential surface thereof; and a front ferrule (30). The back ferrule (40) includes: a nose part (41) having a front-end inclined surface (41b); a tail part (42) having a rear-end inclined surface (42b); and an outer circumferential surface (43) and an inner circumferential surface (44) connecting the nose part to the tail part. An outer circumferential corrugated surface (45) and an inner circumferential corrugated surface (46) are respectively formed on the outer circumferential surface and the inner circumferential surface between the nose part and the tail part.

Abstract: A connector, particularly for connecting pipes, includes a base body, a sealing element and a member for fixing a pipe inserted into the connector, wherein the base body has an insertion opening on one side for the insertion of a pipe and the sealing element is arranged in an essentially cylindrically symmetrical recess set embedded in the base body and wherein the essentially cylindrically symmetrical recess at least partly has a smaller depth in the region between the position of the inset sealing element and the side of the recess facing the insertion opening of the base body than in the region of the position of the sealing element.

Abstract: Some embodiments of a medical device anchor system include an anchor sleeve that receives a catheter (or other medical instrument) though a working channel of the anchor sleeve. The anchor sleeve may include a first actuator that controls the extension of one or more subcutaneous tines into the subcutaneous region under the skin. The anchor sleeve can also include a second actuator that can cause the anchor sleeve to lock onto an outer portion of the catheter (or other medical instrument) arrange in the working channel.

Abstract: A fitting includes a hollow body, a sealing member, and a draw mechanism. The fitting mechanism includes a primary actuation element coupled with the body at a first end, and a plurality of secondary actuation elements coupled to the sealing member. The plurality of secondary actuation elements are positioned in an interior of the hollow body and circumferentially spaced from each other. The plurality of secondary actuation elements are also engaged with the primary actuation element such that actuation of the primary actuation element draws the plurality of secondary actuation elements axially towards the opening at the first end of the hollow body thereby translating the sealing member from an open position to a sealing position.

Abstract: The present invention provides a fitting mechanism capable of distributing pressure applied on an outermost layer of plastic, and contributing to cooperation and complementary reaction between a fitting body and a ferrule body under severe temperature change. A fitting mechanism according to the present invention comprises a fitting body formed of metal, and a ferrule body formed of metal, wherein the fitting body is coupled to the ferrule body by fastening the third threaded portion of the ferrule body with the second threaded portion of the fitting body, and the fitting body slope surface is impinged onto the ferrule body slope surface forming a fluid tight contact and causing the ferrule body deformation portion to be deflected inwardly, tightened around and penetrate into outermost layer of plastic, and the outermost layer of plastic of the leading end of the multilayer composite pipe impinges onto coupling end portion.

Abstract: A fitting assembly for maintaining a leak free seal connection with an associated fluid conduit during and after exposure to extreme heat is provided. The fitting assembly includes a coupling body including an inside surface defining a bore for receiving the associated fluid conduit. The coupling body is made of a first corrosion resistant material having a first coefficient of thermal expansion. The at least one ring is made of a complementary second corrosion resistant material having a second larger coefficient of thermal expansion such that the second material will expand at a greater rate that the first material during heating to a first temperature generally exceeding annealing temperatures of both the first material and the second material.

Abstract: An arcuate member is clamped onto a pipe so that a protrusion or ridge penetratingly engages the outside surface of the pipe.

Abstract: A collet assembly connects two tubular members with a rotation of an outer sleeve. The collet assembly includes a first tubular member with a grooved outer diameter end. The end is inserted into a collet having grooved inner and outer diameter surfaces, and an outer annular sleeve is threaded onto the collet. A grooved outer diameter end of a second tubular member is inserted into the collet. The outer annular sleeve is rotated relative to the collet. The rotation causes the collet to partially disengage from the outer annular sleeve and fully engage the grooves of the ends of the first tubular member and the second tubular member, thereby securing the first tubular member to the second tubular member.

Abstract: A bite-in type pipe connection structure is provided, the pipe connection structure being capable of, even if piping connection work is performed with a length of piping inserted insufficiently, minimizing deterioration of air-tightness at the joint portion, at which the piping is connected, due to an offset load acting on the piping. Also provided are a valve, a bite-in type pipe joint, and a refrigeration device using the bite-in type pipe connection structure. A ferrule is provided with: a low-strength portion which, when a coupling member becomes fastened to a joint body by manually rotating the coupling member, allows the distal end portion of the ferrule to deform so that the distal end portion restrains a length of piping which is to be connected; a level changing portion which connects a front tapered surface, which corresponds to the low-strength portion, and a rear tapered surface; and a rearward portion which is adjacent to the low-strength section.

Abstract: The invention relates to a connector (1) for clamping a component around a tubular member (30) and to a method of using such a connector. The clamping connector (1) comprises a collar (2), a plurality of movable dogs (16) mounted in the collar and actuation means for driving the movement of the dogs. The collar (2) has an inner wall (4) and an outer wall 5, the inner wall being adapted to surround the tubular member (30) with a gap (56) between an outer surface of the inner wall (4) and an outer surface (28) of the tubular member. The inner wall (4) has a plurality of apertures (12) each aperture leading to a passage (14) through the inner wall. Each of the dogs (16) is slidably seated in one of the passages (14) for movement in a radial direction with respect to the tubular member (30). Around each passage (14) the inner wall (4) is spaced apart from an inner surface (25) of the outer wall (5).

Abstract: Embodiments of the invention provide an annular pipe insert and pipe assembly system that includes a first pipe segment having a cut end with a face end coupled to a second pipe segment with an insert. The insert includes an annular main body portion including a rear surface and an opposed front surface extending from an inner diameter of the insert. The front surface can include a beveled portion coupled to a top surface portion that extends from the inner diameter of the insert to the beveled portion. The assembly system also includes an inner flange portion coupled to the front surface and extending away from the beveled portion, and an outer flange portion coupled to the inner flange portion. The cut end is inserted into the second pipe segment whereby the face end of the first pipe segment is coupled to the rear surface of the main body portion.

Abstract: A mechanical pipe joint system for joining a male piping member and a female piping member, the female piping member having a bell portion to receive a portion of the male piping member, includes a retaining flange and a restraining gasket, the restraining gasket including a sealing portion, a flange portion, and a restraining portion, the restraining portion including a plurality of circumferentially-spaced restraining segments.

Abstract: Thin-walled pipe joints can include a first pipe and a second pipe. The first pipe includes a hollow pin member positioned at about an end of the first pipe. The second pipe includes a hollow box member positioned at about an end of the second pipe. The hollow box member is further configured to at least partially surround the pin member of the first pipe. The joint also includes a first ring placed adjacent an end of the hollow pin member and a second ring engaged with the box member. The second ring substantially axially abuts against the first ring and the first ring substantially axially abuts the box member. The second ring further generally extends from the first ring in a direction opposite to the end of the pin member adjacent to the box member.

Abstract: Embodiments of the invention provide a suspension system for supporting an enclosure. The system includes a compression fitting that couples an enclosure mounting assembly to a hollow connector tube and provides a substantially sealed pathway between the enclosure mounting assembly to the hollow connector tube. The compression fitting includes at least one coupling body and at least one compression nut. The compression nuts are tightened around portions of the coupling bodies to secure end portions of the enclosure mounting assembly and the hollow connector tube within the coupling bodies.

Abstract: A pipe connector assembly which is locked and assembled on a holder after required parts are assembled in sequence on a nut of a pipe connecting device during the process of connecting a joint of a pipe, and a method for connecting a pipe using same are disclosed. A holder can be unlocked from a nut only when a pipe is inserted up to a precise point in an insert hole in a part assembled to a nut for pipe fitting, and the assembly and method can not only ensure the assembled sequence of parts, but can accurately maintain the assembled position of a pipe.

Abstract: Push-fit pipe fitting device assemblies having a) a main body comprising one or more tubular portions, a first end of each of the tubular portions is connected either to a first end of another tubular portion or to another push-fit pipe fitting device assembly; and each of second ends of the tubular portions is configured to host a pipe; b) one or more tubular inserts, wherein the one or more tubular inserts are fittingly disposed inside tubular portions of the main body; c) one or more nuts, the one or more nuts is fittingly disposed over second ends of the main body; d) one or more grip rings, wherein the one or more grip are fittingly disposed over second ends of the tubular inserts, and inside the one or more nuts; and e) one or more elastomeric sealing rings disposed at each end of the one or more tubular inserts.

Abstract: An inner tubular portion (15) and an outer tubular portion (16) form an insertion space (14) of a plastic pipe (11) and are integrally formed on a joint main body (13). A cap (29) is connected to the outer tubular portion (16) by projection-recess engagement. A retainer mechanism (27) of the plastic pipe (11) is provided between the outer tubular portion (16) and the cap (29). A cutout portion (20) is formed in the outer tubular portion (16), and a bulging engagement portion (24) is arranged on the cutout portion (20). The outer periphery of the bulging engagement portion (24) is connected to the cap (29) by the projection-recess engagement. A restricting portion is provided between the cutout portion (20) and the bulging engagement portion (24). The restricting portion is composed of a first tapered surface (21) and a second tapered surface (25). The first tapered surface (21) is provided on the cutout portion (20) and decreases in width toward the outer end.

Abstract: A wellhead coupling and method for coupling and sealing an annulus formed between overlapping ends of an outer pipe and an inner pipe. A clamp housing grips the inner pipe, forms a horizontal landing base for the outer pipe, and forms circumferential ports aligned with the annulus. A seal ring and upper metal ring are located in the annulus, the seal ring being formed with ports to align with ports of the clamp housing, and the upper metal ring being formed with threaded holes to align with ports of the seal ring and the clamp housing. Threaded seal engaging members extend through the aligned ports for threaded connection in the threaded holes of the upper metal ring. A seal energizing member located within or below the clamp housing pulls downwardly on the threaded seal engaging members to energize the seal ring into sealing relationship in the annulus.

Abstract: A method of use of a conduit coupling system, sealing device, and bell are disclosed herein. The method comprises positioning a sealing device inside a bell coupled to one end of a first conduit, inserting a spigot of a second conduit through the sealing device inside the bell, wherein the sealing device is adapted to move axially within the bell in the direction of the insertion of the spigot and in a radial direction from a centerline of the conduit, and partially removing the spigot from the bell, wherein a segment of the sealing device engages the outer surface of the spigot end as the spigot end is partially removed from the bell. The bell comprises a first end and a second end, the first end coupled to the first conduit. The bell has a concave annular inner surface and a diameter of the annular inner surface adjacent to the first end of the bell is greater than a diameter of the annular inner surface adjacent to the second end of the bell.

Abstract: A conduit coupling system, sealing device, bell and method of use are disclosed herein. The system comprises at least two piping components, and a sealing device. A first component has a bell and a second component has a spigot, the spigot is adapted to mate with the bell. The bell comprises a first end and a second end, the first end coupled to the first component. The bell has a concave annular inner surface and a diameter of the annular inner surface adjacent to the first end of the bell is greater than a diameter of the annular inner surface adjacent to the second end of the bell. The sealing device comprises a locking segment comprising a convex outer surface and a K-type gasket coupled to a locking segment or a non-restraining anti-extrusion segment. The sealing device is adapted to fit between the bell and the spigot.

Abstract: An apparatus for restraining plastic pipe against both internal and external forces at a pipe or fitting connection and to join and seal at least two pipes to form a pipeline is shown featuring an improved restraining and sealing mechanism. The restraining and sealing mechanism includes a circumferential housing and a companion sealing ring which are received within a mating groove provided in the belled end of a female pipe. The circumferential housing has an interior region which contains a gripping ring insert. The sealing ring and housing are integrally located within a belled pipe end during belling operations. Either the exterior of the gripping ring or the interior of the housing or both are provided with a low friction coating.

Abstract: A separation prevention device for a pipe joint has disengagement prevention members and a press member. The disengagement prevention members are disposed at a plurality of locations in a circumferential direction of the pipe, on an inner peripheral surface of an engaging tool or of a receiving opening itself and which are formed with claws. The press member presses the disengagement prevention member radially inward of the pipe and which engages the claw with the outer peripheral surface of an inserting opening. The claw of the disengagement prevention member and the claw of the disengagement prevention member which is adjacent to the former disengagement prevention member in the circumferential direction of the pipe are arranged so as to overlap on each other in the axial direction of the pipe in a state where the claws are engaged with the outer peripheral surface of the inserting opening.

Abstract: A sealing and restraint mechanism operable to couple pipes having a restraint mechanism with a cavity formed in an interior region, and a gripping insert operable to be received within the cavity. The cavity of the restraint mechanism is at least partially defined by a stop and a shoulder. The gripping insert is operable to slide along the cavity and between the stop and the shoulder of the restraint mechanism such that, when the gripping insert slides toward the stop, the gripping insert is biased toward one of the pipes by the restraint mechanism.

Abstract: A fitting comprises a body with a generally flat first face, a gland with a generally flat second face, and a collet assembly adapted to be squeezed onto the outside of the conduit. A nut surrounds the gland and is adapted to engage the body, to force the first and second faces into sealing engagement with each other and to force the collet assembly into sealing engagement with a conduit and with an internal passage in the gland. When the nut is an advanced position, it engages the body, transmitting an axially compressive force to the first collet and pressing the forward end face of the gland against the rear end face of the body. When the nut is a retracted position, it has its forward end face no farther forward than the plane of the forward end face of the gland.

Abstract: A shear element (10, 30, 50, 70, 70A, 90, 90A) for a coupling (110, 112, 114, 150) that couples the ends of high-pressure pipes or high-pressure hoses. The shear element (10, 30, 50, 70, 70A, 90, 90A) includes a plurality of interconnected shear bodies (12, 32, 52, 72, 72A, 92, 92A), each shear body (12, 32, 52, 72, 72A, 92, 92A) including a discrete connector section (14, 34, 54, 74, 74A, 94, 94A) which forms a connection with an adjacent shear body (12, 32, 52, 72, 72A, 92, 92A).

Abstract: A separation prevention device for a pipe joint has disengagement prevention members and a press member. The disengagement prevention members are disposed at a plurality of locations in a circumferential direction of the pipe, on an inner peripheral surface of an engaging tool or of a receiving opening itself and which are formed with claws. The press member presses the disengagement prevention member radially inward of the pipe and which engages the claw with the outer peripheral surface of an inserting opening. The claw of the disengagement prevention member and the claw of the disengagement prevention member which is adjacent to the former disengagement prevention member in the circumferential direction of the pipe are arranged so as to overlap on each other in the axial direction of the pipe in a state where the claws are engaged with the outer peripheral surface of the inserting opening.

Abstract: A combination sealing and restraint system for an as-cast ductile iron fitting is shown for both sealing and preventing separation of an iron pipe fitting and a mating male pipe. A ring-shaped body is installed within a mating groove provided in a mouth region of the as-cast fitting after the fitting has been cast at the manufacturing plant. The ring-shaped body is formed of an injection molded elastomeric material and carries a series of gripping segments which have teeth on an inner surface thereof which are designed to engage an outer surface of a mating male pipe. The teeth are oriented to allow movement of the male pipe in a first direction relative to an end opening of the fitting during assembly, but to resist movement in a opposite direction after the fitting joint has been assembled. The gripping segments have shelf regions which are mechanically secured to the elastomeric body of the gasket.

Abstract: The invention relates to a screw-threaded pipe joint comprising a pin (20) having at one end a male screw-threaded portion and a box (10) having at one end a female portion having a complementary screw-thread. The pin and box inter-engage along the threaded portions with the male thread extending to a male stop shoulder adjacent a complementary stop shoulder on the other portion. The complementary stop shoulder comprises a recess in the form of a cone receiver having a radial surface (23) adjacent a corresponding radial surface (15) on the complementary stop shoulder. A curved sealing surface (24) on the pin (20) sealingly engages a corresponding curved sealing surface (16) on the complementary stop shoulder of the box (10), each curved sealing surface (16,24) lying on the arc of the circumference of a separate circle, and wherein the curvature of the box sealing surface (16) is greater than on the sealing surface (24) on the pin (20).

Abstract: A pipe fixing system comprises a cylindrical body having a tapering part whose diameter is smaller as it goes towards the top of the body; an entry provided in the body and having a bolt hole and a projection; a fixing chip provided in the tapering part, having, in the center, a bolt hole extending from the top to the bottom of the chip and having teeth on the surface contacting a pipe; and a bolt passing through the bolt hole of the entry and that of the fixing chip. A a spring recess and a bolt end are provided on lower part of the bolt and a spring is provided in the spring recess to prevent unintentional movement of the bolt.

Abstract: A hollow fiber connection for the radial sealing connection between a hollow fiber and a connection element and/or between the hollow fiber and a housing, particularly for a device for field flux fractionating. Here, the hollow fiber is arranged in a housing connection of the housing. A sealing of the hollow fiber in reference to the connection element and/or the housing as well as in reference to the environment may be yielded according to the invention such that an annular element and a connection element are coupled via a connection part to the housing and/or the hollow fiber and that the hollow fiber connection achieves a sealing via a section between the hollow fiber and the connection element, which is created by an axial displacement of the annular element in reference to the connection element.

Abstract: A ferrule arrangement for use in sealing connections to gas chromatography columns includes a generally tubular metal ferrule with an axial bore to receive a fracturable column with a protective coating. The ferrule has a forward part that tapers to a tip region of the ferrule. A generally tubular former has a socket portion to receive the ferrule and further has an internal conical surface that, after such receipt, engages the forward part of the ferrule. A portion is provided on either or both of said ferrule and the former by which the ferrule and former may be directly or indirectly relatively moved together by application of finger force.

Abstract: A conduit fitting of the type having first and second threaded fitting components and at least one conduit gripping device, further includes a stroke limiting member that allows the fitting to be pulled up by applying a predetermined torque. In one embodiment, the stroke limiting member may be a non-integral torque collar. Alternatively, the fitting may also be pulled up by turns or may have an integral torque collar. In still another embodiment, a stroke limiting member is provided that may be used to enable a fitting that is designed to be pulled up by turns to also be pulled up by torque. In other embodiments, the non-integral torque collar may be installed onto one of the fitting components, and then deformed so as to prevent or make it more difficult to remove the torque collar after installation onto the fitting component.

Abstract: A ferrule for a conduit fitting includes in one embodiment a generally annular body comprising a cylindrical interior wall, a rearward portion with a frusto-conical recess that presents a camming surface, and a tapered outer surface. The tapered outer surface extends radially outwardly from a forward portion of the generally annular body towards the rearward portion, with the rearward portion further comprising an outer wall portion that tapers radially inwardly at an angle ? towards a back end of the annular body.

Abstract: A coupling device for a tube comprising a coupling piece with an insert end for the tube and a sealing organ which is suitable for realizing a seal around the tube inserted in the coupling piece, whereby the sealing organ comprises a series of elements which together form a ring enclosing the tube, and whereby the elements have been provided with at least one gripring, extending over at least a part of the circumference of the tube, which at least one gripring is embodied with inwardly and/or outwardly pressed out first projections and second projections extending away from the surface of the gripring, whereby the first projections and the second projections are provided with, in the plane of these projections extending first anchor teeth and second anchor teeth.

Abstract: A coupling ring is provided, including a series of unit members with adjacent unit members rotatably coupled to each other, and a fastener coupling unit members on both ends to each other. A concave groove provided to extend circumferentially is externally fitted into an outer circumference of each of two opposing flanges. The unit members on the both ends are coupled to each other by the fastener to be turned into an annular state. The fastener is fastened to thereby press an inclined surface. The flanges are pressure-bonded to each other by forces generated during pressing. A stopper member is provided to restrict a separation angle between the unit member on one end and an adjacent unit member to fall within a certain angle in an open state in which the unit members on the both ends are not coupled to each other provided on at least one of the unit members.

Abstract: A plug connector for fluid conduits. The plug connector including a housing part with a plug socket for the fluid-tight insertion of a tubular plug-in part, a holding element for locking and a fluid seal for sealing the inserted plug-in part. The plug connector being arranged in a plug socket, the housing part being in two parts comprising a base part and an insert plate which is connected to the base part via a snap-action positive fit connection. The base part comprising a receiving part for the holding element, the fluid seal and the insert part, and a joining part for the joining connection of the housing part to a fluid conduit.

Abstract: This locking ring is adapted to lock a joint between two tubular elements (4, 8). It extends around a central axis (X-X) and comprises segments (50) each having a main part (58) and two circumferential ends (60). Each segment (50) has a shape flaring out from a thin axial side towards a wide axial side. One of the segments (50) comprises a recess (62) for receiving a retaining member (16), which is axially open on the thin side. The receiving recess (62) extends solely through the main part, and it is circumferentially limited on both sides.

Abstract: A combination sealing and restraint system for an as-cast ductile iron fitting is shown for both sealing and preventing separation of an iron pipe fitting and a mating male pipe. A ring-shaped body is installed within a mating groove provided in a mouth region of the as-cast fitting after the fitting has been cast at the manufacturing plant. The ring-shaped body carries a gripping member with teeth on an inner surface thereof which are initially angled away from an outer surface of a mating male pipe. The teeth are forced into engagement with the exterior surface of the mating male pipe as the pipe joint at the fitting is assembled. The teeth are oriented to allow movement of the male pipe in a first direction relative to an end opening of the fitting during assembly, but to resist movement in a opposite direction after the fitting joint has been assembled. The ring-shaped body also includes a relatively flexible portion formed of an elastomer which forms a sealing member with the mating male pipe.

Abstract: A pipe coupling (1) includes a pipe-shaped sleeve (2) being provided with a protruding flange (4) at least in one end, said flange having a tapering end face (6). The pipe coupling further including an annular gripping ring (13) divided into ring segments (17), an annular resilient sealing ring (12) provided between the flange (4) and the gripping ring (13), a pressure ring (8) and tightening means of the bolt/nut type (26, 27). The pressure ring (8) is divided into a number of separate, mutually interspaced ring segments (10) each provided with an abutment face (9) adapted to displaceably abut the end face (6) of the flange (4). The bolts (26) extend through elongated, radially extending openings (30) in the flange (4) and through clearance holes (32) in the pressure ring segments (10).

Abstract: A sealing gasket is shown for use in a ductile iron piping system to form a sealed joint between mating male and female pipe ends. A sealing gasket body is provided with a series of retainer inserts which extend outwardly from a leading nose region of the elastomeric gasket body. The mating male pipe end contacts the retainer inserts prior to contacting the remainder of the gasket body during the make up of the pipe joint. The inserts help to retain the gasket within its associated groove during high pressure field conditions. The inserts are spaced circumferentially about the gasket nose region, allowing the gasket the necessary flexibility to allow insertion within the groove provided in the female, belled pipe end.

Abstract: A grip element comprising a wedge-like structure supporting a metal plate, the exposed outer surface thereof being provided with an array of large and small gripping teeth. The large teeth project from the surface of said metal plate further than said small teeth. The invention further provides a grip element having a floor. The grip elements may be disposed around a ring for the purpose of pipe gripping.