Abstract: A fitting is attached to a composite pipe by inserting a tubular root portion of the fitting into an end of the pipe and then tensioning longitudinally-extending tensile elements distributed around the fitting. This moves an outer wedge component of the fitting longitudinally relative to the pipe to force an opposed inner wedge formation radially inwardly toward the roof portion, clamping the fitting to the pipe. The fitting may be an end fitting to enable the pipe to be joined to another pipe or conduit, or may be an in-line fitting used to join two lengths of pipe end-to-end.

Abstract: A portable hydration system and various components are disclosed. The system utilizes a pump to transfer potable liquid (e.g. water) from a liquid container to a user during challenging activities (e.g. endurance motorcycle riding).

Abstract: A collar for having in cross-section a generally triangular filler section and a generally rectangular outer section over the filler section. The collar may be part of a tube assembly where the collar serves to couple a fitting to tube. A method of installing the collar includes pressing the collar over the outer surface of the tubing until the strain on the collar in the hoop direction is at a predetermined level.

Abstract: An anchor bolt fixation system for catheter probes and electrodes having different diameters. A removable reducing tube is provided for insertion into the lumen of an anchor bolt and an anchor bolt cap is provided for securing the reducing tube to the anchor bolt. A second anchor bolt cap is provided having a bore with a diameter generally equal the diameter of the lumen of the reducing tube.

Abstract: An irrigation pipe coupler can engage an open end of an irrigation pipe with its forward end. The coupler has a nipple and an outer collar. The nipple has an outwardly projecting barb and the collar surrounds the nipple and has an inwardly projecting bulge. The collar is slidably moved along the nipple between forward and rear terminal positions while being kept spaced radially outwardly from the nipple via a peripheral gap that is re-defined for each new position of the collar along the nipple. At each such new position, the gap has a narrow region measured in the radial direction where the collar is closest to the nipple and the narrow region gets smaller at least during at least part of the forward movement of the collar along the nipple. A window formed in the collar allows an operator to see an irrigation hose inserted into the gap.

Abstract: A fluid supply line is provided to reduce the labor and cost required for dripline system installations by providing predetermined fitting locations where driplines can be attached. The supply line consists of a conduit having a side wall, a connector extending through the side wall of the conduit, the connector having a conduit connecting segment extending outside the conduit and an inlet segment extending into the conduit, and the inlet segment being connected to the side wall of the conduit.

Abstract: Composite tube assemblies comprising a composite tube comprising a distal end having a first conical section and a second conical section, wherein a distal end of the first conical section is in contact with a proximal end of the second conical section having the same outer diameter as the distal end of the first conical section, wherein a proximal end of the first conical section and a distal end of the second conical section have a smaller outer diameter than the distal end of the first conical section, a locking ring disposed around the first conical section, an end fitting disposed around the second conical section, wherein the end fitting is coupled to the locking ring, and a retaining ring circumferentially disposed around the locking ring are provide.

Abstract: A hose connector comprises a connector main body (12, 112, 190), a lock member (14, 82, 88, 94, 114), a cam mechanism (70, 170: 68, 168, 194) that converts the rotational movement of the lock member into an axial movement thereof, and clamping features (24; 42, 142) formed in the inner and outer circumferential surfaces of the lock member and the connector main body which clamps a hose end by moving axially toward each other. The hose end can be connected to a pipe or a pipe-like member with ease in a reliable manner and without requiring a tool.

Abstract: A hose fitting that includes a body having a connection portion configured for connection to an external component, a tubular nipple portion configured for insertion into an end of a hose, and a union portion joining the nipple portion to the connecting portion. The socket also has a crimp portion extending from the union portion of the socket. A swage collar having a tapered inner surface radially inwardly deforms the socket when the swage collar is moved axially over the socket to retain a hose between the socket and the nipple portion of the body.

Abstract: A hose coupling is described. The hose coupling includes a stem to which is staked a ferrule. The stem includes a radially inwardly directed groove into which a radially inwardly directed wedge of the ferrule is staked. The wedge includes a width that is greater than the width of the groove before staking. Moreover, the groove includes a bottom surface from which first and second canted sides extend at a first angle, while the wedge includes an inner surface from which first and second canted sides extend at a second angle. The first and second angles are not parallel but within five degrees of one another. The stem and ferrule form at least six distinct regions of surface contact to guard against rotation of the ferrule relative to the stem.

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: A flexible hose having an inner tube member made from a thermoplastic elastomer material and an outer tube member made from a non-elastic polyester material. The inner tube member is secured to the outer tube member only at an inlet coupler and an outlet coupler. The inlet coupler is constructed to secure to a water supply provided from a conventional household water spigot. The outlet coupler incorporates a flow restrictor allowing the inner tube member to equalize in pressure with pressurized water received from the water supply. Pressurized water expands the elongated inner tube member longitudinally along a length of the inner tube member and laterally across a width of the inner tube member thereby substantially increasing the length of the hose to an expanded condition wherein the hose contracts to a substantially decreased length when there is a decrease in pressurized water.

Abstract: A hose connection system comprises a body including an internal cavity and a port in fluid communication with a portion of the internal cavity. In addition, the system comprises a hose end fitting positioned in the cavity. The hose end fitting includes an inner tubular member and an outer tubular member concentrically disposed about the inner tubular member. The outer tubular member includes a plurality of circumferentially spaced axial slits. Further, the system comprises a plurality of wedge members arranged circumferentially about the outer tubular member. Still further, the system comprises an annular piston movably disposed within the internal cavity of the body. An end of the piston has an inner frustoconical surface that slidingly engages the plurality of wedge members. The piston is configured to move axially through the body and compress the wedge members and the outer tubular member radially inward.

Abstract: Connection devices for a moulding core for producing a fibre composite component are provided. Such a connection device can include a base element for receiving a coupling portion of the moulding core for subjecting the moulding core to a medium, a clamping element for fixing and sealing the coupling portion of the moulding core on the base element, and a locking mechanism for locking the clamping element with respect to the base element and the coupling portion of the moulding core.

Abstract: A flexible garden hose having an inner tube member made from elastic material and an outer tube member made from a non-elastic material. The inner tube member is secured to the outer tube member only at an inlet coupler and an outlet coupler. The inlet coupler is constructed to secure to a water supply provided from a conventional household water spigot. The outlet coupler is coupled to a flow restrictor allowing the inner tube member to equalize in pressure with pressurized water received from the water supply. Pressurized water expands the elongated inner tube member longitudinally along a length of the inner tube member and laterally across a width of the inner tube member thereby substantially increasing the length of the hose to an expanded condition wherein the hose contracts to a substantially decreased length when there is a decrease in pressurized water.

Abstract: A pressure tight, high pressure metal hose fitting is provided for a corrugated metal hose formed from metal tube having the fitting crimped permanently to the end of the hose. The fitting includes a first end with a stem which has threading to be coupled to an appropriate fitting surface. The fitting also has a second end adapted to be received within the hose. A sealing gasket is disposed on the second end of the fitting. A clamshell element is disposed above and about the fitting and the hose. The fitting includes projections which are adapted to be received in the clamshell assembly. A crimping ferrule is placed above and about the clamshell and is crimped to compress the clamshell about the fitting and hose and causes the sealing gasket to form a pressure tight seal.

Abstract: A tube coupling system (1) for a pressurised fluid system comprising a coupling body (3) for receiving a tube (5) of a pressurized fluid system, a leakage seal (7) for preventing fluid supplied from the pressurized fluid system via the tube to enter the coupling body (3), a gripping member (9) for gripping the outer surface of the tube (5) received in the coupling body (3), and an environment seal (11) for preventing intrusion from outside of the coupling body (3), characterized in that said environment seal (11) is at least partially displaceable and arranged to be pressed at least partially off a sealing seat when there is internal fluid pressure in the coupling body (3) resulting in a fluid stream out of the coupling body (3) and said fluid stream to the outside of the coupling body (3) indicates a leakage from the pressurized fluid system.

Abstract: A transmission element, which has a permanent nondetachable connection, is producible employing an axial pressing technique using simple means. The transmission element for workpiece connections to be axially compressed includes a flange section and a transmission section. The transmission section exhibits a substantially cylindrical internal peripheral surface, and the wall thickness of the transmission section tapers from the end proximal to the flange section to the end distal to the flange section. The transmission element is manufactured from a heat-resistant plastic.

Abstract: A plug-in hose coupling includes a housing input part with a receiving bore widened in an end region which faces toward the interior of the coupling. A tubular support sleeve is sealingly clipped into the widened end region by an annular collar which has multiple outward U-shaped channels. At least one annular seal and one annular holding element, which bears axially against the seal, is in the form of an open lock washer and is supported against an inner conical support face of the housing input part. The support face narrows conically counter to the plug-in direction of the tube end. The holding element has encircling cutting edges on the inner periphery for engaging the tube end. A fastening part is non-detachably joined to the housing input part and support sleeve by an overmolding connecting section.

Abstract: A system for pre-positioning a hose clamp (2) on a hose end (24) includes: a) a fixing part (1?) which is connected non-releasably to an annular segment of the hose clamp (2) and is fastened to the hose end (24), and b) one or more fixing parts (1, 1?) which each have a U-shaped element which, fastened to the hose end (24), is directed with its open side (3) to the hose surface. The web (6) connects the two U-legs (4, 5) and extends axially and parallel to the hose surface. The U-leg (4), which lies closest to the hose end (24), has a connecting element (7) for attaching the U-shaped element to the end face of the hose end (24). The U-shaped element is configured in such a way that the hose clamp (2), which is pulled on to the hose end (24), is fixed releasably in the intermediate space (8) of the U-shaped element by way of an annular segment of the hose clamp in such a way that the hose clamp (2) is released from the fixing when tightened.

Abstract: A detachable pneumatic pipe or hose connection includes: a) a compressed-air-carrying body with an accommodating bore for a compressed air hose or pipe, the accommodating bore having a radially inner wedge section, b) an at least partially radially elastic clamping collet which surrounds the hose or pipe and which has a radially outer wedge section, c) the radially outer wedge section of the clamping collet interacting with the radially inner wedge section of the accommodating bore so that, by an axial movement of the clamping collet in one direction, the wedge sections can be braced against one another, and the clamping collet is elastically deformed, at least partially, radially inward to clamp the pipe or the hose frictionally and/or positively and so that, by an axial movement of the clamping collet in the opposite direction, the wedge sections can be moved away from one another, and the clamping collet is elastically deformed radially outward to cancel the clamping of the pipe or hose in the accommodatin

Abstract: A wedge coupling for coupling a tubing to a housing is disclosed. The wedge coupling includes a base having an opening defined therein and configured to receive a portion of the tubing therethrough and a plurality of prongs disposed on the base and around an inner periphery of the opening. The plurality of prongs are configured to slidably engage the housing and to deflect inwardly to secure the tubing to a nozzle adapter disposed within the housing.

Abstract: A coupling for creating a fluid-conducting connection between a pipe and a stub, where the stub has no pipe-supporting extension over which the pipe is to be connected. The coupling includes a coupling body having a forward end for being secured to the stub, a rearward end for receiving the pipe, and an internal bore therethrough; stub connection for securing the forward end of the coupling body to the stub; a pipe support for providing internal support for an end section of the pipe being engaged by the coupling; gripper engaging means for causing the gripper to grip the pipe; a seal between the stub and the pipe; and a gripper located within the internal bore of the coupling body, the gripper and the coupling body configured to engage the pipe with the gripper when the stub is secured in the stub connection.

Abstract: A device for connection of a tube to a structure, which consists of an expandable female plug (1) whose outer surface is, at least partially, in contact with the inner surface of the tube (2), the female plug (1) having an orifice (4) in which a moveable male plug (3) is located whose outer surface (8) combines at least partially with the surface (7) of the orifice (4) in the manner of a wedge, having means of tightening by screws (5) to join the male plug (3) to the structure (6) through the female plug (1) with which the tube (2) is joined to the structure (6).

Abstract: A plug-in connector comprising a base body (6), an annular sealing element (12), a clamping ring (50) and an annular body (20) which can be connected to the base body (6). A pipe end (4, 5) against which the sealing element (12) is arranged in a sealing manner, can be secured in the plug-in connector by the clamping ring (50). The plug-in connector of the invention can be connected to an end (4, 5) of at least one pipe in a simple manner and with a high degree of functional reliability, excluding the risk of assembly errors. For this purpose, the sealing ring (12) is arranged in an annular groove (14) of the base body (6) and comprises two sealing beads (60, 62) which are situated against the inner surface of the inserted pipe end (4, 5) in the manner of two o-ring seals.

Abstract: Hose coupling devices that securely connect an end of a hose to a fitting member using a retention mechanism operated by multi-threaded engagement of the fitting member with a collar member. The multi-threaded engagement also may operate a hose advancement mechanism. The advancement mechanism axially advances a hose during multi-threaded engagement so that the hose may be more effectively gripped by the retention mechanism.

Abstract: A coupling a hose end, including a hose barb defining a sanitary passage between an inner end securable to the hose and an outer end securable to a sanitary line, at least two malleable hose grips each defining a partially cylindrical segment having an outer diameter tapered from one end to the other, and an outer sleeve defining a central truncated conical passage which is tapered from one end to the other end to match the outer diameter taper of the hose grips. One end of each of the hose grips extends beyond the inner end of the hose barb to also surround a portion of the hose which is not over the hose barb inner end. A method of assembling the coupling uses a retaining sleeve which works in conjunction with the outer sleeve to hold and bias the hose grip against the hose as well as to release the hose grips during disassembly.

Abstract: A pipe coupling having a radially deformable housing, wherein a pipe is freely insertable into the housing bore and a nut causes engagement of the grip ring with the pipe. The housing bore including a plurality of outwardly extending projections. The grip ring including a plurality of apertures adapted to receive the housing projections and a plurality of inwardly extending burst hole projections. Tightening of the nut causes the grip ring to be forced both radially and longitudinally, whereby the gripping member substantially restricts longitudinal and rotational movement of the pipe.

Abstract: A hose fitment for the connection of disposable food containers to dispensing lines of food dispenser. This hose fitment is adapted to securely establish fluid connection between a hose and a food or beverage dispensing line. This fitment includes a body member having a first engaging surface for internally engaging a hose end and a sleeve member that includes a second engaging surface that externally engages around the hose end to press on the hose end against the first engaging surface in a manner effective to create a tight seal between the fitment and the hose end.

Abstract: A sleeve-type pipe joint 10 has a joint body 11 having a cylindrical projection 12 adapted to be inserted into a pipe 40 to be connected; a ring member 20 having a larger inner diameter than an outer diameter of the pipe 40; and a resiliently deformable, cylindrical sleeve member 30 moved into a space between the ring member 20 and the pipe 40, at least one of an inner surface of the ring member 20 and an outer surface of the sleeve member 30 being provided with a tapered portion, such that when the sleeve member 30 is moved into the ring member 20, the sleeve member 30 is deformed inward, resulting in tight connection of the inner surface of the pipe 40 to the outer surface of the cylindrical projection 12. When the ring member 20, the sleeve member 30, and the joint body 11 are assembled, the ring member 20 and the sleeve member 30 resist detachment from the assembled pipe joint 10.

Abstract: A plastic barb clamp provides leakproof connection of a flexible tube in a barb fitting. The barb clamp includes a collet and a sleeve. The barb clamp is configured to fit snugly within the tube. The collet is slid over the tube. Annular retainers on the interior surface of the collet fit tightly around the tube and under an expanded portion of the barb fitting. The sleeve is then slid over the collet. As the sleeve moves over the collet, tangs on the collet are pushed radially inwardly into the tube and barb fitting. The exterior surface of the collet has radial projections or expanded diameter portions for locking with the sleeve. The sleeve has an annular projection or a reduced diameter portion on the interior surface of the sleeve to correspond to the exterior surface of the collet to provide a secure lock between the collet and sleeve.

Abstract: A preferred apparatus for connecting a fitting to a conduit section comprises a rigid insert designed to be affixed to the fitting and one or more retainers designed to fit over the external surface of the conduit section. A preferred insert includes at least two axially-spaced, raised detents. Suitable retainers include rigid, one-piece collars and clamps. An especially preferred method for connecting the coupler fittings and the section of pipe comprises the steps of positioning a one-piece collar over the external surface of the conduit section; pressing the insert into a receiving end of the conduit section; and pushing the one-piece collar along the external surface of the conduit section toward the receiving end to substantially align the one-piece collar between two axially-spaced, raised detents on the insert. Most preferably, a seal is positioned between the two axially-spaced, raised detents.

Abstract: An improved pipe connector includes a fastening member between two connecting pipes. The fastening member has a fastening section on one end coupling with a pad sleeve. The fastening section is coupled with a bracing sleeve from outside for housing a pipe. A sleeve cap with a sloped harness hole is used to compress the pipe with a contracted force that couples two pipes at two ends of the fastening member. The fastening member may be adjusted angularly according to onsite requirements to achieve smooth connection and fastening of the pipes without skewing or forming a gap therebetween.

Abstract: A fixing end-fitting for a flexible tubular pipe, the pipe comprising an inner sealing sheath, a pressure vault comprising a short-pitch helical winding of a metal forming wire, an intermediate sheath and at least a web of tensile long-pitch wound armour wires and an outer sealing sheath. The end-fitting comprises a stepped part capable of sliding into a stepped cylindrical housing of the end-fitting. Two crimping elements sealingly fix the inner sheath and the intermediate sheath. Screws enable the stepped part to be brought closer to and be fixed on the end-fitting. The stepped part and the deformable elements constitute three separate elements, thereby facilitating mounting and providing a better control of tightness.

Abstract: An insertion sleeve for a pipe coupling. The coupling includes a rigid stiffener tube in a fixed position within a shell, the stiffener tube having an external diameter less than the internal diameter of a pipe to be secured by the coupling. The insertion sleeve includes a cylindrical portion having an external diameter less than the internal diameter of the pipe, a first end of the sleeve which may be axially inserted over the stiffener tube, and a second end of the sleeve having a shoulder to abut the pipe after axial insertion of the pipe over the first end and the cylindrical portion and having a tapered opening in angular relation to the axis of the cylindrical portion.

Abstract: A hose coupler that allows flexible hosing to be quickly and easily mated to various pieces of equipment. The hose coupler includes a stem that fits snugly into the end of the hose, a compression sleeve, and a collar that forces the compression sleeve against the hose, thereby reversibly fastening the stem within the end of the hose.

Abstract: A supporting sleeve that is to be used in a tube coupling. The supporting sleeve causes an internal stiffening against compression of the end of a tube inserted in the coupling. The supporting sleeve is a separate part that is mounted in a bore in the coupling. The supporting sleeve includes a deformable collar that externally is conical and narrows in the direction of insertion. The edge of the collar has a diameter mainly corresponding to or exceeding the diameter of the bore.

Abstract: A joint assembly for flexible and semi-rigid piping, such as high density polyethylene piping or the like. The assembly comprises a joint end sleeve and a nut. The joint end sleeve comprises in series first, second, third and fourth co-axial sections of circular cross-sections. The first and second sections are to be disposed within the end of the piping. The nut, with an internal threaded surface, is made of a material harder than the one used in the piping and with a higher or equal hardness than the one on the joint end sleeve.

Abstract: A barb clamp provides a leakproof connection of a flexible tube in a barbed fitting. The barb clamp includes a collet and sleeve. The barb fitting is configured to fit snugly within the tube. The collet is slid over the tube. Shelves on the interior surface of the collet fit tightly around the tube and under an expanded portion of the barb fitting. The sleeve is then slid over the collet. As the sleeve moves over the collet, tangs on the collet are pushed radially inwardly into the tube and barb fitting. The sleeve is moved over the collet until an annular projection on the interior surface of the sleeve sits within an annular groove of the collet. Radial ledges on the exterior surface of the collet provide a stop and lock to prevent the annular projection on the sleeve to move out of the annular groove of the collet.

Abstract: A plug-in coupling having a base body (6), a sealing ring (12, 13), a locking ring (40) and an annular body which can be connected to the base body (6). A pipe end (4, 5) can be locked in position by the locking ring (40). The plug-in coupling of the invention enables a connection to be made with at least one pipe end in a simple, functionally reliable manner, in such a way that pipes made of different materials can be used together. The pipe ends (4, 5) can be inserted into an axial annular gap or space (27) between the base body (6) and the annular body (18, 19) in such a way that the sealing ring (12) lies adjacent the interior of the pipe end (4, 5), making a good seal with the pipe end, and also in such a way that the locking ring (40) is located in the annular gap (27). The locking ring (40) is prestressed and adjoins the locking surface (20) of the annular body (18) on one side and the exterior surface of the inserted pipe end (4, 5) on the other side.

Abstract: A sleeve-type pipe joint 10 has a joint body 11 having a cylindrical projection 12 adapted to be inserted into a pipe 40 to be connected; a ring member 20 having a larger inner diameter than an outer diameter of the pipe 40; and a resiliently deformable, cylindrical sleeve member 30 moved into a space between the ring member 20 and the pipe 40, at least one of an inner surface of the ring member 20 and an outer surface of the sleeve member 30 being provided with a tapered portion, such that when the sleeve member 30 is moved into the ring member 20, the sleeve member 30 is deformed inward, resulting in tight connection of the inner surface of the pipe 40 to the outer surface of the cylindrical projection 12. When the ring member 20, the sleeve member 30, and the joint body 11 are assembled, the ring member 20 and the sleeve member 30 resist detachment from the assembled pipe joint 10.

Abstract: A coupling for a transition between a plastic pipe and a metal piping system. In one embodiment, the transition coupling includes an adapter nut having a first end for connection with the metal piping system. A stiffener tube, affixed in the adapter nut, has an external diameter less than an internal diameter of the plastic pipe. An adapter coupling is connected to a second end of the adapter nut. A hollow gripper is positioned within the adapter coupling having an internal circumferential surface configured to grippingly engage the plastic pipe after axial insertion. At least one toroidal elastomeric seal is received over a groove in the stiffener tube to engage the plastic pipe.

Abstract: A pipe fitting element comprises a tubular fit-in sleeve (1) which can be fitted into an end of a pipe (2) to be connected, and a clamping ring nut (10), coaxial to the sleeve (1). The pipe (2) is arranged to be clamped by tightening the ring nut (10) on the sleeve (1) and translating it towards the pipe (2) while drawing two clamping surfaces (5, 13) mutually closer. One of the surfaces is situated on the outer surface of the sleeve (1) and the other situated on the inner surface of the ring nut (10). These clamping surfaces (5, 13) consist of progressive widening (105, 113) of the outside diameter of the sleeve (1) and of the inside diameter of the end of the ring nut (10) turned towards the pipe (2). A pipe joint, which has at each end a pipe fitting element of the above described type is also provided.

Abstract: A plastic pipe coupling system including a female coupling and a support ring. A circumferential groove is molded or cut into the outer diameter of a plastic pipe. The female coupling includes a reduced diameter portion with a coupling rib at the free end. The ends of the pipe, coupling, and support ring are beveled in order that the ends pressed together engage and by the slight resiliency of the plastic construction permit the slight expansion and contraction of the ends to provide a locking interfit of the respective groove and rib at the two ends. There is an interference fit between the support ring and the coupling so that a radial preload is induced when the support ring is assembled onto the coupling. The inner surface of the sleeve or the outer surface of the coupling is tapered for ease of installation of the support ring over the coupling and to provide radial support to keep the coupling in the groove.

Abstract: A hose connector includes a connection body and a lock ring. The connection body is provided at one end with a fastening portion engageable with a lawn sprinkler or the like, and at the other end with a tubular protrusion which is provided with an outer threaded portion, an annular groove, and a toothed edge. The lock ring is provided with an inner threaded portion, and a sloped portion located in the inner wall of the outer end thereof. The lock ring is joined with the tubular protrusion such that the inner threaded portion of the lock ring is engaged with the outer threaded portion of the tubular protrusion. The lock ring can be turned counterclockwise to move toward the fastening portion, or clockwise to move away from the fastening portion.

Abstract: A barb clamp provides a leakproof connection of a flexible tube in a barbed fitting. The barb clamp includes a collet and sleeve. The barb fitting is configured to fit snugly within the tube. The collet is slid over the tube. Shelves on the interior surface of the collet fit tightly around the tube and under an expanded portion of the barb fitting. The sleeve is then slid over the collet. As the sleeve moves over the collet, tangs on the collet are pushed radially inwardly into the tube and barb fitting. The sleeve is moved over the collet until an annular projection on the interior surface of the sleeve sits within an annular groove of the collet. Radial ledges on the exterior surface of the collet provide a stop and lock to prevent the annular projection on the sleeve to move out of the annular groove of the collet.

Abstract: A pipe joint provided with a pipe joint main body having an insertion cylinder portion inserted to an end portion of a pipe to be connected, a seal member attached to a peripheral groove on the insertion cylinder portion, a clamp ring with a slit for fastening the end portion of the pipe outserted to the insertion cylinder portion with elastic fastening force, and a diameter-extension piece detachably held at the slit as to extend the clamp ring resisting the elastic force of the clamp ring and detached by contact with a forth end of the pipe.

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 sheath clamp for a welding torch, comprising a sleeve (5) having a spherical head (3) adapted to be inserted into a seat in the torch and a flange axially spaced from the head, with a collar (9) slidably mounted on the sleeve (5), and means for urging the collar (9) along the axis of the sleeve in order to clamp a sheath (2), fitted over the sleeve (5), against the flange (4). Preferably the collar (9) is provided with at least one inwardly protruding tooth (10), preferably two inner opposed teeth, and the sleeve has a reduced diameter portion between the flange (4) and the spherical head (3), which is bounded by inclined raised walls (7) which can be engaged by the tooth (10) of the collar (9), so that rotation of the ring causes an axial displacement of the collar along the sleeve (5).

Abstract: A fluid coupling 10 comprising a length of flexible tubing 11 having a free end 12, a connector 13 having at least one end with at least one radially projecting rib, the end being adapted to be a force fit within the free end of the tubing so that the rib causes a radially outward expansion of the tubing, and a locking ring 30 having an inextensive band 31 coupled to resilient gripping means, the locking ring 30 being adapted to be a sliding fit on the tubing but an interference fit on the expanded portion of the tubing to cause the gripping means to engage and grip against the tubing to prevent axial separation of the tubing from the connector 13.