Abstract: A polymer-lined fluid transmission line includes various structures, including a first polymer-lined pipe, a second polymer-lined pipe, and one or more sleeve retainers installed at a pipe junction between the polymer-lined pipes. Among other things, the sleeve retainers may include one or more protuberances to frictionally engage the polymer-lined pipes or a one or more portions that protrude into a space between the polymer-lined pipes to help retain and protect polymer sleeves.

Abstract: A fracturing fluid delivery system is provided. In one embodiment, the system includes a fracturing manifold and a fracturing tree. A fluid conduit is coupled between the fracturing manifold and the fracturing tree to enable receipt of fracturing fluid by the fracturing tree from the fracturing manifold through the fluid conduit. The fluid conduit includes a flexible pipe segment between rigid ends of the fluid conduit. Additional systems, devices, and methods are also disclosed.

Abstract: Spigot tube couplers for fluid flow sets and devices are provided. The spigot tube coupler includes a stop surface and a spigot extending from the stop surface and configured to be inserted into a tube. The spigot includes an insertion end, a fluid port, an outer surface, a collar and a plurality of grooves disposed around the outer surface. The plurality of grooves are configured to receive a bonding agent to provide a plurality of bonding areas between the spigot and the tube. Methods for assembling a spigot tube coupler and a tube are also provided.

Abstract: Modular end apparatus, such as modular end fitting apparatus, and methods for flexible hoses, and associated components thereof. In one implementation, a flexible hose apparatus includes a flexible hose and a hose body coupled to the flexible hose, the hose body including a threaded outer surface. The flexible hose apparatus includes a cap including an inner shoulder protruding inwardly relative to a first inner surface of the cap. The flexible hose apparatus also includes a removable end fitting disposed in engagement with the cap. The removable end fitting includes an end body that is monolithic. The end body includes a first end, a second end opposite of the first end, and a first outer shoulder adjacent the first end and disposed between the hose body and the inner shoulder of the cap.

Abstract: A coupling for coupling one or more hoses to a cleaning machine including at least one connector for the connecting of a hose to be cleaned with a pillar and at least one pillar for the connection of the connector with a cleaning machine, wherein the pillar includes a longitudinal hollow body with at least two open ends including; a longitudinal guidance part, situated towards a first end; and a second end opposite to the first end in longitudinal direction; wherein the guidance part is provided with a thickening for the fixing of the connector to the guidance part, which thickening includes a first slope facing the first end, which slope has an angle with the guidance part between 5 and 45 degrees; and includes a second slope facing the second end, which slope has an angle with the guidance part between 30 and 60 degrees.

Abstract: A flex duct fitting system includes: a flex duct with an inner lining, a flex duct fitting device, including a connector portion, including a connector portion body, a flex fitting assembly with a peripheral protrusion and a peripheral indentation; a circular fastener, such that the inner lining is pulled over the flex fitting assembly, such that the at least one circular fastener is positioned in the peripheral indentation and tightened around the connector portion body, with the inner lining tightened in place between the at least one circular fastener and the peripheral indentation.

Abstract: A connection clamping device (21; 61; 81; 131; 151) arranged for securing a flexible tube (1) to a barbed end (5b) of a tube connector (5), whereby the barbed end (5b) comprises a barb (9) and the tube connector during connection is arranged to protrude into an end of the flexible tube (1), characterized in that said connection clamping device comprises two sections (23 a, 23b) which, during connection when the tube connector protrudes into an end of the flexible tube, are arranged to be connected and locked to each other by a locking mechanism (33a,33b,34a,34b; 63a, 63b, 64a, 64b) around the tube connector (5) and the flexible tube (1), such that the flexible tube (1) is compressed against the tube connector (5) by a rib (41a, 41b) provided on the inner circumference of the connection clamping device.

Abstract: A clamping nut (100) for a hose connector (200) includes a first angular surface (302) and a second angular surface (304) defined on an inner surface (122) of a nut body (110) towards the first end (112) and the second end (114) of the nut body (110). The first angular surface (302) and the second angular surface (304) are provided at a first angle (?) and a second angle (?) with a central axis (A-A?) of the nut body (110). A contact section (306) is defined on the inner surface (122) of the nut body (110) between the first angular surface (302) and the second angular surface (304). The contact section (306) is adapted to contact a hose (120) when the clamping nut (100) is threadedly coupled to the hose connector (200). Further, inner diameter (d) of the inner surface (122) of the clamping nut (100) across the contact section (306) is substantially identical to an outer diameter (D) of the hose (120), and the first angle (?) has a value in a range of about 90 to 120 degrees.

Abstract: A method and apparatus for securing a flexible pipe to a further flexible pipe in an end-to-end configuration, wherein the apparatus includes and the method utilizes an elongate tubular element having a first and second end and an outer surface comprising a raised central region. At least one vent passage extends at least partially across the raised central region.

Abstract: Spigot tube couplers for fluid flow sets and devices are provided. The spigot tube coupler includes a stop surface and a spigot extending from the stop surface and configured to be inserted into a tube. The spigot includes an insertion end, a fluid port, an outer surface and a plurality of grooves disposed around the outer surface. The plurality of grooves are configured to receive a bonding agent to provide a plurality of bonding areas between the spigot and the tube. Methods for assembling a spigot tube coupler and a tube are also provided.

Abstract: A hose assembly includes a hose defining an internal fluid passage and an exterior surface, an end connection attached to a first end of the hose, an insulation material wrapped onto the exterior surface of the hose, a cover installed over the insulation material, and an elastomeric sleeve extending over and in compressive engagement with at least a portion of the end connection and the cover. The insulation material, the cover, and the elastomeric sleeve are each rated for continuous use at a temperature of at least about 135° C.

Abstract: A crimping method including providing a coupling including a sidewall and a ribbed stem having a plurality of radial valleys, the ribbed stem defining a longitudinal axis, wherein the first sidewall extends radially to the axis, and providing a die including a stop and a channel extending through the stop, the channel having a ribbed section with a plurality of ribs. The ribbed stem is inserted through the first stop, into the first channel and into the end of a hose. With a ferrule arranged between the ribbed section and the hose and the sidewall pressed against the stop, the die is used to compress the end of the hose between the ferrule and the ribbed stem with the plurality of radial valleys radially aligned with the plurality of ribs. The couplings are selected from a medical gas medical gas outlet rough-in and a medical gas nut nipple.

Abstract: Kinking of tubing can be prevented by use of a device comprising a first clamp, a second clamp, a first rod and a second rod. The first clamp and the second clamp carry the first rod and the second rod to form a frame, and the flexible tubing is secured to the first clamp and the second clamp. The device can be easily moved and adjusted by a user. The device can be attached to any location along the tubing and allow the tubing to bend past 90 degrees without kinking. Multiple devices can be used in series to route tubing in desired route without it kinking.

Abstract: A pipe device includes a pipe and a connection element. The pipe has a pipe jacket that has an inner surface and an outer surface and forms a flow channel. The connection element forms a through-channel that extends from a connection piece consisting of a first material (M1) and having a first opening to a second opening. The pipe jacket is positioned on the connection piece with a first pipe end consisting of a second material (M2). A bonded connection is formed between the first material (M1) and the second material (M2) in a contact region between the inner surface of the pipe jacket and a peripheral surface of the connection piece.

Abstract: A pretensionable locking system, a method for producing a locking system and a medical-technical instrument including a locking system. The locking system (2) includes a locking body (10) with an inner thread (12), and an inner locking body (20) with an outer thread (22). In a pretensioned position, the inner thread lies against the outer thread in a first longitudinal axial direction (80) and is pretensioned against the outer thread. In a locked position, the outer locking body is fixed on the inner locking body by screwing the inner thread onto the outer thread. The outer locking body has a resilient retaining element (14) that projects radially inward, and the inner locking body has a rigid bulge (24) that projects radially outward. In the pretensioned position, the retaining element lies against the bulge in a second longitudinal axial direction (85) that is opposite the first longitudinal axial direction.

Abstract: A hose adapter may include an outer tube, an inner tube, a hose connector, and a hose. An inner peripheral ring protrudes from the inner periphery of the outer tube while an expanding ring portion protrudes from the outer periphery of an end of the inner tube. The outer periphery of the inner tube further has a first peripheral recess, a second peripheral recess, and a first outer thread, and a first O-ring and a second O-ring are respectively disposed on the first peripheral recess and the second peripheral recess. The inner tube is inserted into the outer tube, and the expanding ring portion is abutted against the inner peripheral ring, and the first O-ring is coupled between the outer tube and the inner tube while the second O-ring and the first outer thread are adapted to pass through and be exposed out of the outer tube.

Abstract: A hose coupling (1) is provided, having a sleeve-like configuration and at least one coupling end with a connector (3), at the at least one coupling end, with a retaining profile provided on the outer circumference of at least one connector sub-region, it being possible for a hose end (4) of a flexible hose (2) to be pushed onto said at least one profiled coupling end. The retaining profile is formed by at least one retaining groove (5) which is provided on the outer circumference of the connector (3) and has longitudinal groove sides (8, 9) oriented in the circumferential direction of the connector and narrow groove sides (6, 7) oriented in the longitudinal direction of the connector.

Abstract: A wire harness includes: one or more conductive paths; and an outer member that includes a plurality of leading outer members, each having a tubular shape that passes along the one or more conductive paths; and a watercrosslinkable fixing member or a photocrosslinkable fixing member that bonds adjacent leading outer members of the plurality of leading outer members which are separate away from each other in a longitudinal direction of the one or more conductive paths.

Abstract: A pipe fitting including a housing, a connecting cylinder at least partially disposed in the housing, the connecting cylinder being sealingly mounted in the housing, the cylinder having a portion of reduced diameter with a groove defining a sloping shoulder, a pipe fastening element rotatably mounted about the reduced diameter portion of the connecting cylinder and about the groove for selectively engaging the pipe during a quick connect action, and elements for selectively engaging the interior wall of the pipe for permitting removal of the pipe from the fitting when manipulating the pipe fastening element, and a method for forming the fitting.

Abstract: A hydraulic duct for feeding fluid at high pressure includes a rigid tube and a flexible hose connected to the rigid tube by a connecting assembly. The connecting assembly includes an endform in communication with the rigid tube over which the flexible hose extends. The endform includes a primary annular projection extending outwardly from a periphery of the endform and at least one auxiliary annular projection extending outwardly from the periphery of the endform. The primary annular projection includes a leading edge, a trailing edge, a landing region that extends axially from the trailing edge toward the leading edge and a stop bead that extends outwardly from the leading edge beyond the landing region.

Abstract: A multi-barbed connection suitable for use in connecting a piece of flexible irrigation tubing is provided, where one of the barbs is a circumferential barb configured for forming a generally fluid tight connection with the tubing and another of the barbs is a corner barb having one or more corners configured for biting into the tubing for at least partially assisting in retaining the tubing on the connection. The connection can be part of a fitting for fluidly joining multiple pieces of tubing or part of an irrigation device, such as a pop-up irrigation sprinkler.

Abstract: The press fitting for a tube, particularly for a plastic tube or a plastic/metal compound tube, comprises a fitting body (12) including a support shell (14) for mounting thereon one end of a tube (20) which is to be connected, a press shell (16) which is plastically deformable for pressing against the support shell (14) the end of a tube (20) to be connected that has been mounted on the support shell (14), an abutment element (30) arranged on the press shell (16) and having an abutment face (34) to be abutted by a pressing tool (26) for plastically deforming the press shell (16), and at least one press indication portion (40) projecting from the abutment face (34) of the abutment element (30) and extending externally on the press shell (16) into an acting region (38) within which the pressing tool (26) encloses the press shell (16) during deformation of the press shell (16), the press indication portion (40) being separable from the abutment element (30) by means of the pressing tool (26) during the deformati

Abstract: In the improved barb clamp 110, as shown in FIGS. 5 and 6, the barb fitting 112, 212 has an engineered bore size that has the same cross-sectional area as the bore 100 of the tubing 14. When the improved barb fitting 112, 212 are installed into a tube 14, there is no transition between the inner diameter of the tubing 14 and the inner diameter of the fitting 112. As a result, there is no pressure differential on the tubing or in the fluid from outside to inside of the barb clamp 110. Maintaining a constant pressure or a constant velocity of fluid throughout the system may be imperative in certain medical applications. To accomplish this, the free end 150 of the barb fitting 112, 212 are gradually tapered to a sharp point 152. The sharp point 152 on the free end 150 of the barb fitting 112 also allows for easy insertion of the barb fitting 112 into the tube 14. As a result of this configuration, liquid material can never get between the barb fitting 112, or 212, and the tube 14.

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: An electrically conductive hose cutting clip has at least one cutting blade that is shaped to provide a cutting edge for penetration of the inner layer(s) of a multiple layer fluid conveyance hose when it is clipped onto a fluid connector and the hose is installed on the fluid connector by forcing it onto the connector. The cutting action by the cutting blade provides for a relatively low resistance electrical connection between an electrically conductive layer of the hose and the fluid connector. This can be used to provide a signal path from a sensing element on the hose to a system electronic component.

Abstract: A hose end coupling comprising a unitary one-piece stem having an exterior barb end portion and an exterior ferrule interface portion, with a unitary one-piece radially crushable ferrule disposed over the stein, with a crushable socket portion disposed about the barb end portion, a deformable attachment portion disposed about the ferrule interface portion, and a torque communication portion defined between the socket portion and the attachment portion. The socket portion may retain a “C” shaped insert, one or more coiled inserts, or a plurality of stacked inserts, for gripping a hose end and the socket portion might define a lip, with a seal disposed in the socket portion between the insert(s) and the lip. Some embodiments of a “C” shaped insert define inner-circumferential teeth and corresponding outer-circumferential depression indentions.

Abstract: Disclosed herein are embodiments of a barb clamp for fluid connection to a flexible tube, the flexible tube having an inner bore defined by a predetermined inner diameter for providing a fluid flow path. The barb clamp includes a barb connector having the same predetermined inner diameter as the flexible tube and a tapered end insertable into the tube. A sleeve and collet lock over the tubing and barb connector to prevent liquid material entering between the barb and tube. The tapered end of the barb connector terminates at a point so that there is no transition between the inner diameter of the tube and the inner diameter of the barb connector to provide no pressure differential in the tube between the outside and inside of the barb clamp.

Abstract: A removable and reusable multiple application fitting is disclosed that enables removal of the hose without significant damage to the hose. The removable and reusable multiple application fitting properly seals with hoses made of only one compound, such as rubber, as well as hoses of multiple compounds with or without linings, such as a rubber hose with a plastic lining. The multiple application fitting has a taper step and o-ring step to guide a hose over an installed o-ring to prevent the o-ring from being displaced during installation. The multiple application fitting is versatile and in some embodiments is used with hoses that require o-rings, and in other embodiments used with hoses that do not.

Abstract: A hose coupling for attaching to the end of a hydraulic hose includes a shell member positioned about the free end of the hydraulic hose. A body member includes a first end and a second end. The second end of the body member is inserted through the shell member and into the inner diameter of the hydraulic hose. An encapsulated fastener is rotatably and slidably disposed about the body member and positioned between the first end and the shell member. The first end has a flange portion having a diameter greater than the diameter of the body member and contains a groove for receiving an o-ring. The o-ring is adapted for sealing connection to a hydraulic device.

Abstract: A transition coupling system for use with a dual containment pipe which includes an inner primary pipe and an outer secondary pipe with an interstitial space therebetween, the transition coupling comprising. The transition coupling includes an inner body configured to engage an inner surface of the primary pipe and an outer body configured to engage an outer surface of the secondary pipe. The outer body includes at least two releasably attachable portions, at least one of which is movable relative to the other in a radial direction thereof. The inner body and the outer body are configured to define a gap therebetween when coupled to the piping system such that the gap is generally sealed and in communication with the interstitial space.

Abstract: A hose end coupling comprising a unitary one-piece stem having an exterior barb end portion and an exterior ferrule interface portion, with a unitary one-piece radially crushable ferrule disposed over the stem, with a crushable socket portion disposed about the barb end portion, a deformable attachment portion disposed about the ferrule interface portion, and a torque communication portion defined between the socket portion and the attachment portion. The socket portion may retain a “C” shaped insert, one or more coiled inserts, or a plurality of stacked inserts, for gripping a hose end and the socket portion might define a lip, with a seal disposed in the socket portion between the insert(s) and the lip. Some embodiments of a “C” shaped insert define inner-circumferential teeth and corresponding outer-circumferential depression indentions.

Abstract: A clampless fitting for one or more plastic pipes. The fitting has at least one section extending along an axis with a sealing portion and pipe gripping portion adjacent one another on the outer surface of the section. The pipe gripping portion includes a recess extending about the axis of the fitting section with a pipe gripping ring removably received in it and extending substantially about the axis. The ring is substantially C-shaped about the axis and has a plurality of pairs of first and second end segments spaced from each other along the axis and respectively joined by a central pivot segment. In operation, the fitting section is inserted in a first direction into the open end of the plastic pipe to a first location relative to the pipe in which both the sealing and pipe gripping portions are received in the pipe.

Abstract: A hose coupling employs a tailpiece, a sleeve and collar to prevent the hose to be removed from the coupling. The tailpiece includes an exterior having: a first sinusoidally shaped (in cross-section), partially diamond shaped knurled contour, and, a cylindrically shaped interior. The sleeve includes an interior second sinusoidally shaped contour reciprocal to the first undulating contour of the tailpiece. The sleeve includes first and second halves each having two sets of fingers which interengage the fingers of the other half. A hose is disposed between the sleeve and the tailpiece and the hose includes a grounding wire which engages the collar or the sleeve. The collar includes first and second halves and each of the halves of the collar interengage the sleeve urging the sleeve against the hose compressing the hose against the contour of the tail piece.

Abstract: A composite pipe having at least one metal end piece (2, 3) with a free end and a non-metal tubular component (10). The tubular component (10) is coupled to the at least one end piece (2, 3) opposite of the free end of the end piece (2, 3), by means of at least one peripherally extending, axially acting groove (6, 7) that the non-metallic tubular component (10) engages. The non-metallic tubular component (10) generally comprises axial fibers (11) extending down into the at least one groove (6, 7). The groove (6, 7) has a bottom (13) and a flank (14), which flank is located furthest away from the free end of the end piece (2, 3). Between the flank (14) and the axial fibers (11) there is provided an intermediate layer (15). Also described is a method of manufacturing such a composite pipe.

Abstract: Coupling assembly for use in conduits or tubing holding a pressurized liquid, such as a garden hose. The structure provided facilitates uncoupling of male and female fittings in such an assembly which substantially reduces the uncontrolled release of pressure in the system such that the pressurized liquid will not flow uncontrollably from the assembly during decoupling. Methods are provided for making and using such components that result in one or more of an ease of manufacture, reduced material costs, reduced machining costs, and/or ease of use.

Abstract: A barb clamp for connection to a flexible tube is taught, the flexible tube having an inner bore defined by a predetermined inner diameter for providing a fluid flow path. The barb clamp includes a barb connector having the same predetermined inner diameter as the flexible tube and a tapered end insertable into the tube. A sleeve and collet lock over the tubing and barb connector to prevent liquid material entering between the barb and tube. The tapered end of the barb connector terminates at a point so that there is no transition between the inner diameter of the tube and the inner diameter of the barb connector to provide no pressure differential in the tube between the outside and inside of the barb clamp.

Abstract: A barb clamp for use with a flexible tube is taught, the flexible tube having an inner bore defined by a predetermined inner diameter for providing a fluid flow path. The barb clamp includes a barb connector having the same predetermined inner diameter as the flexible tube and a tapered end insertable into the tube. A sleeve and collet lock over the tubing and barb connector to prevent liquid material entering between the barb and tube. The tapered end of the barb connector terminates at a point so that there is no transition between the inner diameter of the tube and the inner diameter of the barb connector to provide no pressure differential in the tube between the outside and inside of the barb clamp.

Abstract: A hose (10) comprising a tubular body (12) of flexible material arranged between an inner and an outer helically wound wire (22, 24). The hose (10) further comprises an axial strengthening means (20) adapted to reduce deformation of the tubular body (12) when the tubular body (12) is subjected to axial tension, the axial strengthening means (20) being adapted to exert a radially inward force on at least part of the tubular body (12) when axial strengthening means (20) is subjected to axial tension.

Abstract: A connection structure for a resin pipe, in which leakage of fluid from between a metal pipe and the resin pipe fitted on the metal pipe is prevented for a long time. In the connection structure, at least two diameter-expanded sections (10, 11) are formed with a spacing on an end region of a metal pipe (1), the spacing between the two diameter-expanded sections (10, 11) functioning as a circumferential groove (12) in which a seal ring (SR) is received, and a resin tube (2) is fitted up to a position beyond a far side diameter-expanded section (11) of the two diameter-expanded sections (10, 11). A back ring (BR) is received in the circumferential groove (12) together with the seal ring (SR). The diameter-expanded sections (10, 11) of the metal tube (1) are formed by bulging or spool shape-forming process.

Abstract: A hose-clamp system for securing a hose to an air connector that engages an inflation port of a garment for use in pump therapy for enhancing venous and arterial blood flow of a human foot. The system includes a fitting having an internal stem and an external stem, the internal stem configured to engage an inside diameter of an end of the hose, a cradle configured to received the internal stem and the end of the hose and having opposing locking protrusions, and a seal positioned from the locking protrusions at substantially the length of the internal stem and configured to engage the external stem.

Abstract: The present invention discloses an interface between a stiff piece (1) and a composite material (2), said composite material (2) comprising fibres (3), said stiff piece (1) comprising two or more vanes (4a, 4b, . . . ) protruding from a surface of said stiff piece (1), said vanes (4) comprising two or more lateral surfaces (41, 42, 43, 44), in which one or more fibres (3) of said composite material (2) are arranged for passing through one or more funnel-shaped throats (45) formed between lateral surfaces (41a, 43a, 41b, 43b, . . . ) of adjacent vanes (4a, 4b, . . . ), in which a fixing matrix material (7) is arranged around said one or more fibres (3), at least in or near said funnel-shaped throats (45), in which said vanes (4) are arranged for exerting counteracting transversal and axial forces on said fibres (3) and said fixing matrix material (7) when said interface is subject to forces.

Abstract: A joint assembly, including a piping, comprises a joint end sleeve, a tightening ring and a nut. The ring has an external truncated-cone shaped surface and an internal cylindrical surface with a diameter slightly larger than the diameter of the piping, and an internal cylindrical surface with at least one annular edge to cooperate with at least one annular groove in the sleeve in such a way that an inside diameter of the annular edge is substantially equal to the outside diameter of the piping. The nut has an internal cylindrical surface with a diameter slightly larger than the outside diameter of the piping and is disposed opposite a cylindrical portion of the sleeve when the nut is installed. The smaller outside diameter end of the tightening ring is adjacent the internal cylindrical surface of the nut when the nut is installed. An internal truncated-cone shaped surface of the nut has a larger diameter end a size slightly larger than a smaller outside diameter end of the ring.

Abstract: Clamp-connection hose (1) for a fluid feed circuit inside the engine compartment of a motor vehicle, comprising a side wall (2) suited to convey the fluid and an end portion (4) of the side wall (2) having an axis (A).

Abstract: An apparatus and a method for estimating a carrier to interference and noise ratio (CINR) in a communication system. The CINR value is precisely estimated by removing the error floor value, which is caused by the inaccurate sliding average window SAW channel estimation value, from the CINR estimation value. Since the CINR value is precisely estimated, performance of the adaptive power control or the adaptive modulation and coding device is improved.

Abstract: A coupling structure for a pipe having an enhanced sealing property for a bellows-type pipe. The coupling structure includes a tubular inner sealing portion that is formed from an elastic material. The tubular inner sealing portion has an abutment surface that is configured to abut against an inner circumference of the pipe. The coupling structure also includes a tubular outer sealing portion that is formed from an elastic material. The tubular outer sealing portion has an abutment surface that is configured to abut against an inner circumference of the pipe. An axial end of the tubular outer sealing portion is connected to the tubular inner sealing portion so as to enclose the end face of the pipe. The coupling structure is also provided with a fastener for holding both the tubular inner sealing portion and the tubular outer sealing portions radially inwardly and outwardly.

Abstract: A method and an installation for connecting a rigid submarine pipe and a flexible submarine pipe. The rigid pipe terminates in a free connection end. The flexible pipe has a flow-line portion and a suspended portion. The flow-line portion has an input end connected to the free connection end. The installation comprises an anchoring device to hold the flow-line portion anchored at an anchor point and to allow the flow-line portion to form an undulation. The anchoring device is suitable for holding the anchor point at a distance and close to the free connection end to form the undulation between the anchor point and the free connection end.

Abstract: A pipe joint provided with a joint main body having an insertion cylinder portion inserted to an end portion of a pipe to be connected, a clamp ring having a slit to fasten the end portion of the pipe inserted to the insertion cylinder portion by elastic fastening force, a diameter-expansion piece, releasable as to jump outward, held within the slit to expand the clamp ring against elastic force of the clamp ring, and a restriction sleeve covering the clamp ring as to restrict the outward jump of the diameter-expansion piece. And, a pipe-insertion detector, detecting the insertion of the pipe to a predetermined depth to release the restriction, is provided.

Abstract: A quick connector includes: a connector body having a retainer holding portion, a tube connecting portion to be press fitted into a tube, and a housing between the retainer holding portion and the tube connecting portion, the tube connecting portion being formed with a plurality of annular projections being axially spaced apart from each other; and a retainer which is held in an axially fixed state by the retainer holding portion. A portion of an outer surface of the tube connecting portion extending from the annular projection, which is closest to the housing, toward the housing is formed into a tapered surface whose diameter is gradually enlarged toward the housing, and a diameter of an annular projection side of the tapered surface is set to be larger than a diameter of the outer surface of the tube connecting portion between the annular projections.

Abstract: An assembly includes a first member having an inner surface and a second member having an outer surface. One of the two members has greater rigidity than the other member and at least one groove. The rigid member is partially received within the less rigid member and a coupling mechanism provides radially inward pressure to generate a seal between the inner surface of the first member and the outer surface of the second member. The groove includes an opening and a base each having a predetermined width. The predetermined width of the opening is generally less than the predetermined width of the base. The more rigid member may comprise an insert with a surrounding sleeve wherein the sleeve includes the grooves.

Abstract: A hose coupling and method of forming the same are disclosed, wherein a strength thereof is maximized and a cost of manufacture is minimized. The hose coupling utilizes a plastic ferrule which militates against a hose end being released from the hose coupling during use.