Abstract: A crimp sleeve includes a cylindrical side wall having a plurality of slots cut therein to form a plurality of fingers. Each finger includes a shank and an inwardly extending tab. The shanks of the fingers are formed at an inward angle relative to the sleeve wall. The tips of the tabs define a tip diameter which forms an interference fit with the nipple on which the sleeve is to be installed. The interference fit between the tabs and the nipple allows the sleeve to be pre-loaded on the nipple. When the end of a length of tubing is inserted in the sleeve, the tubing will contact the shanks of the fingers and urge the fingers outwardly, increasing the tip diameter.

Abstract: A non-bolt joint structure comprising; a packing ring sealing between a receiving opening section and an insertion opening section; an engaging means provided with an inner circumference of the receiving opening section preventing a polyethylene pipe from disengaging from the receiving opening section by engaging with an outer circumferential surface of the polyethylene pipe; and a tubular metallic inner core fitting an inner circumference of the insertion opening section of the polyethylene pipe, wherein the inner core is plastically deformed to include a first bulge portion that its cross-sectional shape bulges toward an outward radial direction, a second bulge portion is formed so that the insertion opening section of the polyethylene pipe bulges toward the outward radial direction along the first bulge portion of the inner core, and the polyethylene pipe is prevented from disengaging by the engaging means engaging with the outer circumferential surface of the second bulge portion.

Abstract: A corrugated hose pipe assembly has a corrugated pipe that is surrounded by an elastomeric high-pressure hose. The ends of the high-pressure hose are grasped and fixed by connectors. The connectors each have a pipe piece (210, 220) which is fitted with a circumferential, radially projecting stationary nipple stop (211, 221) at the axial end thereof facing the corrugated pipe. A hose nipple (310, 320), which is positively mounted on each pipe piece (210, 220), is provided with a radially protruding, circumferential hose stop (311, 321) at the end of the hose nipple (310, 320).

Abstract: A hose coupling utilizing a main hollow body and an expandable inner sleeve and an intermediate end of a hose which is securely held in place upon radially outward expansion of the sleeve.

Abstract: A hose coupling for fitment to an end of a cable reinforced hose comprises a unitary stem having a cable trap groove portion having an outside diameter greater than an inside diameter of a tube of the hose and less than an inside diameter of the hose with the tube skived from the hose. A unitary ferrule defines at least one cable trap rib corresponding to the cable trap groove and having an inside diameter less than the outside diameter of the cable reinforced hose and greater than an outside diameter of the hose with material covering the cable skived from the hose. The groove width is at least the width of the rib plus twice the diameter of cable reinforcing the hose. Epoxy may be disposed between the hose tube and the stem for sealing or injected between the ferrule and the stem permeating the cable.

Abstract: An end piece for a corrugated hose contains a bushing having a front region and a rear region opposite of a longitudinal direction. The rear region is located inside the hose in a mounted state of the bushing. The front region has a collar forming a groove for receiving the free end of the hose. The rear region has a plurality of flexible tongues, which have a relief direction that is oriented perpendicular to the longitudinal direction of the bushing and directed toward the outer chamber of the bushing. A portion of the flexible tongues contains a radially projecting detent protrusion for implementing an engagement active in the longitudinal direction of the bushing. A retaining sleeve, received by the bushing with precise fit and, in the mounted state of the end piece, extends in an inner chamber enclosed by the bushing, limits the radial play of the flexible tongue.

Abstract: A joint structure of a steel pipe and a metal pipe includes a socket; and a thermosetting resin, the steel pipe including a first joining end having a flat portion of the outer surface of the first joining end adjacent to the base, and an uneven portion of the outer surface of the first joining end adjacent to the front end, the socket covering the first joining end, the metal pipe including a second joining end, the second joining end being interposed between the socket and the first joining end, the first joining end being joined to the second joining end by crimping while the thermosetting resin is present in the gap between the inner surface of the socket and the outer surface of the second joining end and between the outer surface of the first joining end and the inner surface of the second joining end.

Abstract: A hose coupling assembly is disclosed that includes a nipple section for retaining a flexible hose where the hose is crimped between the nipple section and a socket. A tubular sleeve covers a portion of the nipple section known as the nipple extension section and the sleeve is attached to the nipple section so as to cover at least one aperture formed in the nipple section such that the sleeve is forced outward towards the socket when pressurized fluid is introduced into the hose coupling assembly which increases the compression force on the hose and thereby increases the operational pressure limit of the hose coupling assembly.

Abstract: A hose fitting assembly is provided, wherein the components are operably engaged with a length of hose to form a sacrificial construction. An end fitting having an insertion stem is disposed within a portion of the hose, wherein a clamping sleeve receiving a length of the hose threadingly engages the end fitting. A swaging collar is slide along the hose to threadingly engage the clamping sleeve, such that complete threaded engagement of the swaging collar and the clamping sleeve circumferentially compress and deform a portion of the clamping sleeve to clamp a portion of the hose intermediate the clamping sleeve and the insertion stem, and partially deformed threads on at least one of the clamping sleeve and the swaging collar. The hose fitting assembly can cooperatively engage a flexible high pressure metal braided hose, wherein the metal braid is formed of a less than full tensile strength steel, such as half hard stainless steel.

Abstract: An air hose end-connector fitting for freeze-free operation of outdoor service station air machines in winter weather having an internal ice particle screening tube and storage chamber is disclosed, the internal ice particle screen defines a perforated tube within the connector fitting airway which screens out overly-large air borne ice particles, the storage chamber defines a dedicated hollow section within the connector fitting which stores the screened-out ice particles till thawed.

Abstract: The coupling includes a mandrel and a coupling outer sleeve. In a method for installing the coupling on a pipe, the mandrel is inserted into the inner diameter of an end of pipe with an outboard end of the mandrel protruding from an end of the pipe. Then the outer sleeve is positioned over the pipe to form a length of substantially concentrically arranged, overlapping parts of the mandrel, the pipe and the sleeve. Then the sleeve is crimped over at least a portion of length, which engages the pipe between the sleeve and the mandrel. Either before or after sleeve is crimped over the pipe, the sleeve is connected to the outboard end of the mandrel.

Abstract: A hose coupling for high-pressure hoses includes a stem and a ridged outer ferrule connected to the stem, wherein a staggered portion is disposed on the stem in the proximity of the connection of the stem and the ridged outer ferrule, where the diameter of the staggered portion is larger than the diameter of the stem, and the staggered portion has an undercut and a cutting edge. Also, a high-pressure hose fitted with the above swaged coupling, and a method for producing it. In the method, prior to swaging, the cover of the hose is removed at the portion where the cover is in connection with the ridges of the ridged outer ferrule of the hose coupling, and the hose liner and an optionally included load distribution textile ply or cord fabric ply are also removed from the hose end before swaging at a length not longer than the length of the staggered portion of the stem.

Abstract: A functional pressure hose for a water-carrying system, particularly for connecting movable sanitary fittings or for connecting parts of the water-carrying system with one another, has an inner hose made of plastic and an outer jacket made of a braided material. At least one hose end is provided with a connector piece having a tubular connector, onto which the hose end is pressed. The inner hose is formed by a corrugated hose, and the tubular connector has circumferential ring beads that are adapted to the inner contour of the corrugated hose. At least some of the ring beads are provided with notches that run axially. The hose demonstrates great flexibility while maintaining the required pressure strength, but at the same time guarantees great bending protection.

Abstract: An electrically conductive hose apparatus includes a hose having a wire reinforcer therein that is electrically conductive, an end section with some hose material being cut away to expose ends of the wire reinforcer; a hose end stem engaging the hose but not the wire reinforcer; a conductive ferrule sleeve clamped onto the exposed ends of the wire reinforcer; an insulated wire in electrical contact with the exposed ends of the wire reinforcer and the sleeve to form an electrically conductive circuit; and a rotatable coupling nut for rotatably connecting the hose and stem to a high pressure hydraulic system but that is insulated from the electrically conductive circuit. The apparatus can be used in an existing pre-approved high pressure hydraulic hose, thus saving time and effort, while providing reliability and low cost. A related method is also provided.

Abstract: A connection between coiled tubing and a connector includes a plurality of dimples formed by a tubing, each dimple is disposed within a respective pocket formed in a connector to form at least two rows of dimple-pocket connections, wherein the fit of the dimples within the pockets of the rows graduates from tighter to looser along the length of the connection. The connection may further include a seal member positioned between the tubing and the connector positioned between at least two of the rows of dimple-pocket connections formed. A method of connecting coiled tubing to a connector includes the steps of graduating the dimple-pocket connections from tighter to looser along the length of the connection.

Abstract: A flange hose fitting assembly and method wherein a captive flange is attached to a flexible hose nipple after the nipple has been crimped to the flexible hose. The flange, which may be selected from different types of flanges, is slipped over the front end of the nipple that is crimped at its back end to the flexible hose, and then locked to the nipple by a suitable retaining device, such as a retaining ring, spring, screw-on or glue-on ring, press-fit ring, piston-ring, shaft seal, U-shaped halves or other split configurations arranged around a locking groove in the nipple, etc.

Abstract: A hose coupling for use in vehicle air conditioning (“A/C”) systems comprises a nipple at the end of a metal tube, a tubular seal insert, and a crimp collar. The seal insert includes a tubular retainer and at least one annular sealing element made of elastomeric material integrally joined to the retainer. The sealing element protrudes radially inwardly from an inner diameter surface of the retainer such that when the sealing element is telescoped over the nipple, the sealing element will effect a seal with an outer diameter surface of the nipple. The sealing element also protrudes radially outwardly from an outer diameter surface of the retainer such that when an end portion of a hose is telescoped thereover, the sealing element will effect a seal with an inner diameter surface of the hose end portion.

Abstract: A high pressure energizable tube connector for a well comprising a tube; a first connector assembly comprising: a female profile disposed over the tube and a first ferrule disposed over the tube adjacent the female profile; a second connector assembly comprising: an inverted jam nut disposed over the tube and a second ferrule disposed over the tube adjacent the inverted jam nut, wherein the second ferrule extends along the tube in a direction opposite the first ferrule; a nipple comprising a test port, wherein the nipple is disposed over the tube between the first ferrule and the second ferrule; a primary seal formed by compressing the first ferrule into the female profile using a pressure from the test port; and a secondary seal formed by compressing the second ferrule into the inverted jam nut using the pressure from the test port.

Abstract: Described herein is a pressure-pulsation-damping fluid supply conduit comprising: a flexible covering pipe, which has end portions opposite to one another; tubular elements having respective first axes and being connected to the end portions; respective couplings, connected to the tubular elements in such a way that they are free to rotate; respective flexible pipes, which have respective fixed portions connected to the respective couplings and respective free portions located radially facing one another.

Abstract: A connecting device for connecting a hose in a fluid-conveying system including a nipple and a compression sleeve. The nipple has a rotation-symmetrical hose-receiving section and, at a distance therefrom, an anti-twist section that is configured in a non-circular manner, at least after a connection has been established between said hose and the nipple. The compression sleeve is configured to extend over the hose-receiving section and over the anti-twist section. The compression sleeve is further configured for a positive-locking engagement with respect to a relative rotation in the anti-twist section. The anti-twist section is configured as a non-circular deformation of at least part of the nipple. A method for establishing an anti-twist connection between a nipple and a hose using a compression sleeve is also disclosed.

Abstract: A hose fitting and a method for fastening a hose fitting to a hose end section are disclosed. The hose fitting includes a connecting element and holding sleeve. The connecting element includes an insert section configured to be inserted into the hose end section. The holding sleeve includes a fixing section with a fixing part to engage a fixing counter part of the connecting element to fix the holding sleeve to the connecting element. A holding section of the holding sleeve may include radially inward projecting holding projections. The fixing and holding sections may be connected via an intermediate section arranged therebetween. In the fastened state, where the hose fitting is fastened to the hose end section, the holding projection may intrude into an outer sheathing of the hose end section. A clearance can be created between the hose end and the fixing part in the fastened state.

Abstract: A vented gas riser for use in a system for conducting pressurized gas through a gas carrier pipe from a gas supply source line located below ground level to a delivery point disposed above ground is provided. A fluid tight gas riser protective casing is disposed around said carrier pipe and creates a gas escape passageway in an elongate annular space between the carrier pipe and the casing. Any gas which leaks from the gas carrier pipe is captured in the gas escape passageway. A riser transition head, which includes at least one vent passageway, provides a fluid connection with said gas escape passageway and with the atmosphere such that any gas which leaks in the vicinity of the gas escape passageway can escape through the at least one vent into the atmosphere.

Abstract: A vented gas riser for use in a system for conducting pressurized gas through a gas carrier pipe from a gas supply source line located below ground level to a delivery point disposed above ground is provided. A fluid tight gas riser protective casing is disposed around said carrier pipe and creates a gas escape passageway in an elongate annular space between the carrier pipe and the casing. A containment chamber is disposed below ground level which creates a confined space which has, as its only egress, a fluid connection to a gas escape passageway. Any gas which leaks into the containment chamber is directed into the gas escape passageway. A riser transition head, which includes at least one vent passageway, provides a fluid connection with said gas escape passageway and with the atmosphere such that any gas which leaks into said containment chamber is directed through the gas escape passageway and through the at least one vent and into the atmosphere.

Abstract: A hose end coupling unitary, one-piece radially crushable ferrule has a crushable socket portion, a deformable attachment portion, and a work hardened torque communication portion defined between the socket portion and the attachment portion. The torque communication portion may be formed in the unitary one-piece radially crushable ferrule, contiguous with the socket portion and the attachment portion. Corners of the torque communication portion may be strengthened and/or the torque communication portion work hardened by disposing a die set about the formed torque communication portion and pressing the torque communication portion into the die set, strengthening corners of the torque communication portion and work hardening the torque communication portion. A mandrel having a desired internal shape of the torque communication portion may be deployed inside the torque communication portion during pressing.

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 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 composite hose with a corrugated metal tube has a hose body having a corrugated metal tube and an outer layer. The corrugated metal tube includes a non-corrugated straight-walled portion on an end portion thereof, and a rigid insert pipe is inserted in the straight-walled portion. A socket fitting is fitted on the hose body by being swaged thereon radially inwardly, and an inner circumferential end portion of the collar portion and an outer circumferential surface of the insert pipe compress an extending portion of the straight-walled portion to fix the straight-walled portion onto the insert pipe and provide a seal between the outer circumferential surface of the insert pipe and an inner circumferential surface of the straight-walled portion. A fracture preventing mechanism is provided on a hose end portion for preventing fracture of the straight-walled portion.

Abstract: In a crimped hose, a length of rubber tubing is crimped into a blind-ended ferrule. To determine whether the tubing has been fully inserted, a dimple is pressed into the ferrule. The force needed to produce the dimple is small or large, depending whether the rubber is inserted properly, and the difference is large enough to serve as a detector. Measuring the dimple-force provides a commercially-useful test for proper insertion.

Abstract: A tube-to-hose coupling includes an elongated hollow insert connected between an end of the tube and defining an insert receiving portion and the end of the hose defining an insert receiving portion. The insert is disposed in the insert receiving portion of the tube end and the insert receiving portion of the hose end in fluid tight sealing relation. Thermoplastic polymeric material is bonded between the insert and the hose during insertion of the insert into the bore of the hose. The tube is connected to the insert and the hose by plastic deformation. In one embodiment the polymeric material is a layer defining the internal bore of the hose. In another, the polymeric material defines an outer layer on the insert.

Abstract: The hose includes an outer jacket which includes warp and weft fibers made of Vectran®. The process for making the hose, includes: forming an inner liner and coating the exterior thereof with adhesive; weaving, in a twill weave pattern, Vectran® yarn, in a repeating 2-4-2-4-2 pattern in both the warp and the weft directions; extruding polyurethane onto the woven vectran yarn, the polyurethane extending into pillars between the warp and weft yarn, forming an outer liner; inserting the inner liner coated with adhesive within the outer liner; and, pressurizing the inner liner with steam expanding the inner liner and the adhesive into engagement with the Vectran® yarn and polyurethane pillars of the outer liner.

Abstract: A pipe fitting for rubber hoses, of the type with a thermoplastic substrate, particularly for air conditioning, conditioning and refrigeration systems, particularly for vehicles and the like, comprising a rigid insert which is adapted to be inserted in a hose to be connected, and a bell-shaped element which is adapted to be crimped around the hose, its particularity consisting in that it comprises a double-adhesive solution which is arranged on the outer surface of said rigid insert and is adapted to produce adhesion between said rigid insert and said thermoplastic material of said internal layer of the rubber hose.

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: A connection assembly for a hose end. The assembly includes a fitting, a connector, and a shell formed of a pair of closable halves. The a fitting includes a nipple having a first end insertable in the hose end and a second end, a flange surrounding the nipple, and a sleeve disposed over the nipple first end. With the hose end being inserted between the sleeve and the nipple, the second nipple end being slidably received coaxially in the connector, and the shell halves being closed over the fitting with the flange being received in a first cavity portion thereof, and with the connector being received in a second cavity of the shell, the fitting is slidably movable in the shell responsive to fluid pressure from a release position to a locked position wherein the flange interferingly engages the first cavity portion preventing the shell halves from being opened.

Abstract: A structure connecting dissimilar metal tubes is a bellows tube and a metal tube made of stainless steel and aluminum respectively. The bellows tube has a reinforcement portion on its outer surface. The structure includes a nipple, the reinforcement portion, and a crimp collar fitted in that order to the outside of a straight tube portion of the bellows tube. The nipple is joined to the reinforcement portion and the metal tube. A sleeve is joined to the metal tube and the crimp collar. The nipple is bonded to the inner surface of the metal tube with a resin. End faces of the reinforcement portion and the crimp collar are in contact with or located close to an end face of the metal tube.

Abstract: The invention relates to corrugated pipe hose assemblies which are not provided with fixtures and which are used to transport preferably gaseous media in high-pressure applications, wherein a mount (3) is provided in order to receive an open end of the corrugated pipe (6) of the corrugated pipe assembly (2) and which is pressed therewith in order to form a metallic seal. The seal is obtained by means of a sealing bushing (25) between the inner wall (18) of one part (16) of the mount and the ribs (8) of the corrugated pipe (6). Another part (17) of the mount (3) firmly holds a section (27) of the covering (11) of the corrugated pipe hose assembly (2) in an axial direction and also with respect to tilting movements such that pivoting movements of the corrugated pipe hose assembly (2) do not result in a relative movement between the corrugated pipe (6) and the mount (3), especially with regard to one part (16).

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: A fitting for connecting pipes together. The fitting includes a press-fit connection including a ring-shaped seat configured to receive at least one of sealing and holding elements. The fitting is configured to be sealingly connected to an inserted pipe end. A threaded connection is configured to be connected to a pipe by a thread on the threaded connection. The fitting is a single piece and is devoid of weldments.

Abstract: A connection between coiled tubing and a connector includes a plurality of dimples formed by a tubing, each dimple is disposed within a respective pocket formed in a connector to form at least two rows of dimple-pocket connections, wherein the fit of the dimples within the pockets of the rows graduates from tighter to looser along the length of the connection. The connection may further include a seal member positioned between the tubing and the connector positioned between at least two of the rows of dimple-pocket connections formed. A method of connecting coiled tubing to a connector includes the steps of graduating the dimple-pocket connections from tighter to looser along the length of the connection.

Abstract: A hose coupling according to the present invention for securing a hose has a cylindrical nipple and a cylindrical socket disposed radially outwardly thereof. A plurality of circumferentially extending annular hose gripping projections are provided on a radially inner surface of the socket in a predetermined interval along a longitudinal direction of the nipple. The hose comprises an elastic tube layer and a reinforcing layer disposed radially outwardly thereof, and is to be secured between the nipple and the socket by crimping the socket after the hose is inserted between the nipple and the socket. At least one hose gripping projection of the plurality of hose gripping projections protrudes radially inwardly of the socket greater than other hose gripping projections.

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: A tube-to-hose coupling includes an elongated hollow insert connected between an end of the tube and defining an insert receiving portion and the end of the hose defining an insert receiving portion. The insert is disposed in the insert receiving portion of the tube end and the insert receiving portion of the hose end in fluid tight sealing relation. Thermoplastic polymeric material is bonded between the insert and the hose during insertion of the insert into the bore of the hose. The tube is connected to the insert and the hose by plastic deformation. In one embodiment the polymeric material is a layer defining the internal bore of the hose. In another, the polymeric material defines an outer layer on the insert.

Abstract: A machine, tooling and method for cold forming complex metal parts such as a banjo style hose fitting starting with a near net shape volume of wire and continuing with multiple forging blows and an intermediate rotation of the blank to produce a hose coupling shell end, a transition neck, a large counterbored annular coupling body and a perpendicular alignment tang.

Abstract: A barb clamp is provided for fluid liquid or gaseous 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 system for assembling a high-pressure fluid tube on a tubular pin, is part of a fitting element provided to be used in particular on motor-vehicles, for example for the production of pipes intended for manufacturing braking circuits or other circuits, in which high-pressure oil or other fluids flow. The system has a first inner layer made of plastic, a second layer made of a steel plait or other suitable material such as fibers or the like, a third coating layer of plastic material and a bush made of steel, alloy or other material, fitted into an end of the tube. The tube is fitted on the pin and locked by crimping of a metallic bush having a radial flange extending into an annular groove of the pin and distorting an O-ring in the groove between the flange and the pin.

Abstract: A plug-type connection arrangement for a hose and a pipe, the connection arrangement comprising a sleeve having an outer wall and an inner wall, wherein the hose is insertable from an end of the sleeve and is clampable in the sleeve, wherein the sleeve has at another end thereof a first annular groove with an open resilient connecting ring which extends over more than 180° and is lockable to the sleeve and the pipe, and a sealing ring for sealing the sleeve relative to the pipe in a connected state of the pipe and the hose, the connecting ring being comprised of a plate spring ring with inwardly directed flanges at both circumferential edges thereof, wherein the flanges of one circumferential edge are engageble in the first annular groove and the flanges of the other circumferential edge are engageable behind a holding rib on the pipe, wherein the sealing ring is mounted in a second annular groove formed by the inner wall of the sleeve and the axially inner wall of the first annular groove, and wherein an end

Abstract: A non-serviceable coupling includes a body with a tube receiving end bore and a hose receiving end bore. The tube includes a radial upset with a seal and spacer supported on the tube. The outer cylindrical surface of the tube is press fit into the reduced diameter bore at the tube receiving end to connect the coupling to the tube. The coupling body is crimped to the tube and to the hose to secure the hose and tube to the coupling. The tube is axially restrained between the crimp and an annular wall in contact with the tube end. In another embodiment, a second seal, outward of the upset is employed to prevent entry of contaminants.

Abstract: An end piece for a flexible connector comprises a sleeve defining the proximal end thereof. A length of corrugated tubing is extended into the sleeve and the sleeve is crimped thereby joining the length of corrugated tubing to the end piece. For high pressure applications a length of polymeric tubing, a length of mesh tubing, and an outer sleeve are positioned in a surrounding relationship to the sleeve of the end piece and the outer sleeve is crimped thereby securing the length of mesh tubing to the end piece.

Abstract: A fluid conduit system that employs fittings having ends with a structural portion and a seal portion. The ends of the fittings are inserted into a tube, which may be a hard, i.e., rigid, or soft, i.e., flexible, tube. The seal portion sealingly engages the inner diameter of the tube upon its insertion into the tube. The tube is deformed to prevent the fitting from being withdrawn from the tube; the portion of the tube in the immediate vicinity of each seal that forms the seal portion is not deformed. A method for forming a fluid conduit system is also provided.

Abstract: A termination apparatus for use in providing a termination on a hose by crimping and a method of forming a termination. The apparatus includes a hose former adapted to be positioned at the hose end. The former has one or more, preferably annular, grooves, and a corresponding number of crimped rings crimped into the groove(s), so that the material of the hose is forced into a serpentine shape in cross-section.

Abstract: A pipe nipple has a bore therethrough, with an entrance chamber at one end of the bore having a larger diameter adjacent a drive configuration of narrower diameter for receiving a tool therein to rotate the nipple about its longitudinal axis. The exterior of the nipple has a surface formation as a stop against which a hose can be inserted over the nipple, and a threaded length for attaching the nipple to another device.