Abstract: A hose coupling assembly for use particularly in an automotive air conditioning system, or other system requiring the effective sealing of a refrigerant over extended periods of time, comprising a hose having an inner liner of thermoplastic material and being maintained in compression by a swaged sleeve over a fitting having a primary sealing element in the form of a resilient O-ring and a plurality of locking grooves into which the thermoplastic liner is to be cold-formed to preclude the possibility of the thermoplastic liner flowing during operation at elevated operating temperatures and to provide a secondary seal at all operating temperatures to which the coupling is exposed. The components, particularly the O-ring and fitting elements, being seized relative to one another to minimize flow of the inner liner at elevated operating temperatures and to maintain the O-ring as a live seal under all operating conditions.

Abstract: A transmission component for a refrigeration or other fluid system having a hose constructed with a moisture barrier, a refrigerant barrier and a reinforcement layer, and a hose coupling. The hose coupling has a cap seal which fits over the end of the hose to seal it, and a shell assembly having an outer shell which fits over the hose end and cap seal, and a hose tube which enters the hose through the cap seal.

Abstract: A coupling which serves to connect the nipple of a pipe to the end portion of a hose has a sleeve with a tubular section insertable into the end portion of the hose and one or more flexible prongs which extend from one axial end of the tubular section and can be bent into engagement with an external retainer of the nipple. The prongs are made of a ductile metallic material. A sealing ring is inserted between the exterior of the nipple and the interior of the tubular section, and a tubular clamping member is used to urge the end portion of the hose against the external surface of the tubular section of the sleeve. The prongs are spread apart during introduction of the nipple into the sleeve, and are thereupon flexed inwardly to engage the retainer.

Abstract: A connector assembly for attaching a brake hose of synthetic rubber to the disk brakes of a vehicle road wheel in which a cylindrical hose skirt of metal has a first end pocket which receives the cylindrical cup portion of a fluid transmitting metal eyelet which also has a nozzle that extends from the cup into a second end pocket of the skirt and into the fluid passage of the brake hose, a steel fluid conducting tube routed from the brakes fits into the cup portion of the eyelet and is joined in a high quantity fluid-tight manner to the eyelet cup and the skirt by a single brazing operation or by other similar joining material to provide for the improved support and optimized hydraulic connection of the hose with respect to the disk brakes.

Abstract: An improved faucet connector has a flexible braided metal hose assembly with a water supply fitting assembly at one end and a universal faucet fitting assembly at the other end to readily connect a faucet to a water supply pipe, tubing, or shutoff valve in an efficient, safe, and structurally sound manner.

Abstract: An improved connector has a flexible braided metal hose assembly with a compression fitting or pipe fitting at one end and a special composite fitting assembly with an electrically insulating insert in a metal male outer fitting at the other end for connection to the water line of an appliance, such as a hot water heater.

Abstract: A coupling for separably connecting one end portion of an elastic hose to a nipple at one end of a pipe has a sleeve with a circumferentially complete tubular section which is receivable in the end portion of the hose and can receive a portion of the nipple, and several substantially axially parallel elastic prongs which are engageable with an external retainer or with discrete external retainers of the nipple when the latter extends into the tubular section of the sleeve. A tubular clamping member is shrunk or otherwise applied around the end portion of the hose so that such end portion is clamped between the exterior of the tubular section and the clamping member. The entire tubular section and a portion at least of each prong is confined in the end portion of the hose when the latter is properly coupled to the nipple.

Abstract: A coupling which establishes a separable fluidtight connection between the nipple of a pipe and an end portion of a hose has a composite sleeve with a tubular first section which is insertable into the end portion of the hose and a separately produced second section which is form-lockingly connected to the first section and has one or more prongs engageable with a retainer at the exterior of the nipple. The end portion of the hose is sealingly clamped between the first section of the sleeve and a tubular member which is integral with one axial end of the first section to define with the latter an annular space for the end portion of the hose. One or more sealing rings are inserted into one or more grooves in the external surface of the nipple and/or in the internal surface of first section of the sleeve. The two sections of the sleeve can but need not be made of the same material, and the prong or prongs of the second section can be made of resilient or ductile material.

Abstract: A coupling for sealingly connecting an end portion of a hose to a nipple at one end of a pipe has a sleeve with a first section which surrounds the nipple and a separately produced second section which is form-lockingly connected with the first section and is received in the end portion of the hose when the coupling is assembled. The first section has a washer-like portion which is integral with axially extending prongs engaging a single ring-shaped protuberance or discrete tooth-shaped protuberances at the exterior of the nipple. The second section of the sleeve has an internal groove for a sealing ring which engages the external surface of the nipple. A tubular clamping member is shrunk onto the end portion of the hose and surrounds the second section of the sleeve.

Abstract: A metallic or plastic nipple which has an annular external recess adjacent a circumferentially complete annular retaining rib can be separably connected to an end portion of a flexible hose by a coupling employing a sleeve having a tubular section which is receivable in the end portion of the hose. The sleeve is further porvided with a set of elastic prongs which slope toward the axis of the sleeve and extend into the recess adjacent the retaining rib when the nipple is inserted into the sleeve. A permanently deformable or repeatedly expansible and contractible discrete clamping member is applied around the end portion of the hose to maintain such end portion in sealing engagement with the tubular section of the sleeve. The prongs can be integral with the tubular section or with a second section of the sleeve. The second section is form-lockingly or otherwise affixed to the tubular section.

Abstract: In a hose fitting fixing construction according to this invention, an engagement member having restoring force of gravity or elastic force is disposed in an engagement space of a bracket. The engagement member engages with an engagement dent of a hose fitting flange inserted into the engagement space, thereby engaging the hose fitting flange with the bracket. A detachment hole may be provided on the bracket to enable easy detachment of the hose fitting flange from the bracket. A detachment jig is inserted into the detachment hole to deform the engagement member against the restoring force and disengage the engagement member from the engagement dent of the hose fitting flange, thereby enabling to detach the hose fitting flange from the engagement space. Accordingly, the hose fitting flange can be installed to the bracket by snap-action even in a limited work space, and detached with ease.

Abstract: A hose fitting wherein the free end of a nipple or pipe is sealingly held in one end portion of a hose by a sleeve having a tubular body with a single axially parallel slot and one or more bridges extending across the slot at the exterior of the tubular body. The latter has depressions which extend toward the nipple or pipe to urge the end portion of the hose into sealing engagement with the nipple or pipe. The sleeve can be detached from the end portion of the hose by partially or fully destroying, by deforming or by removing the bridge or bridges so that the slot can be widened prior to separation of the sleeve from the hose.

Abstract: A hose fitting body composed of a head portion with a through hose made in the center of a pair of flat surfaces thereof, a base portion, and a sleeve is formed out of a test tube-shaped substance by plastic deformation, and a nipple is integrally fixed on the inner circumferential surface of the sleeve. The hose fitting allows for the bending of the base portion while securing a necessary cross-sectional area for the fluid delivery hole of the base portion even when the base portion is bent greatly. The light-weight construction facilitates uniform wall thickness while reducing raw material cost, and provides for fixing the nipple on the sleeve inner circumferential surface in a fluid-tight manner without brazing or drive fitting the nipple.

Abstract: A hose fitting for sealed connection to a hose, comprising: a first cylindrical member having a small diameter bore portion and a large diameter bore portion connected to the small diameter bore portion; a second cylindrical member axially slidable within the large diameter bore portion and having a radial flange portion and an axial tubular portion extending from the radial flange portion, the radial flange portion being provided with a sealing member and the axial tubular portion being provided with a sealing member; a sleeve provided within the large diameter bore portion and having an inclined surface; a collet provided within the large diameter bore portion and having an outer surface engageable with the inclined surface of the sleeve and radially constrictible when moving axially within the sleeve, the hose being firmly fixed between the collet and the axial tubular portion of the second cylindrical member by axial outward movement of the collet; and a stop member received in the large diameter bore por

Abstract: A branched hose construction contains a rigid insert having at least three legs. There is a plurality of hoses, the number of hoses being equal to the number of legs of the insert. Each hose has one end fitted over a leg of the insert. A securing means secures the hose to the leg. A molded saddle encapsulates the rigid insert and the junction of the hoses.

Abstract: A coupling combination comprising a ferrule ring having a portion outwardly of the outer surface of said pipe and having an integral deformable ferrule arm extending longitudinally therefrom adjacent to the outer surface of the pipe, the ring being placed over the pipe such that the ring surrounds an end portion thereof; a cam ring also located outwardly of the outer surface of the pipe and longitudinally placed from the deformable ferrule arm, and having a curved surface arranged to deform the ferrule arm into the pipe upon longitudinal movement of the cam ring against the ferrule; and a plurality of bolts passing through a portion of the cam ring and into the ferrule ring for affecting such longitudinal movement.

Abstract: The fitting terminates an end of a high-pressure hose and comprises a coupling having a portion thereof inserted in the hose end, and a sleeve, enveloping both the hose end and the coupling inserted portion, crimped onto the hose end. A void obtains within the sleeve at the end of the hose, and a capillary hole formed in the sleeve (and in a circumferential wall of the coupling) communicates the void with the external surface of the sleeve. The hole, a weep hole, safely relieves fluid leakage or seepage from the void.

Abstract: A high pressure hose fitting, and method for sealing the hose to a fitting, is disclosed for use with hoses of the type including a linear disposed about an axially extending passageway, and a reinforcement layer circumventing the liner. The liner is preferably pulled slightly beyond the edge of the reinforcement layer to form a protruding edge region. An end fitting, having a flange with a liner-receiving groove, is inserted into the passageway until the protruding edge of the liner contacts the end wall of the groove, and the flange abuts the reinforcement layer. A swagable collar circumventing the foregoing components is swaged radially inwardly to clamp the liner on its outside diameter.

Abstract: Disclosed are a hose fitting comprising the following and a process for manufacturing the same: A hose fitting body composed of a head portion with a through hole made in the center of a pair of flat surfaces thereof, a base portion, and a sleeve all of which are formed out of a test tube-shaped substance by a plastic deformation, and a nipple integrally fixed on the inner circumferential surface of the sleeve. The hose fitting of this invention provides the following advantages of offering easy work for the bending the base portion, offering readiness for securing a necessary cross-sectional area as the fluid delivery hole of the base portion even when the base portion is bent greatly, light-weighted construction having a uniform wall thickness and requiring less raw material cost, and fixing nipple on the sleeve inner circumferential surface in a fluid-tight manner without brazing or drive fitting the nipple.

Abstract: A hose intermediate retainer according to the present invention comprising a hose, an intermediate retainer having an inner cylinder and an outer cylinder, and a clamp is disclosed. Among the members, the outer cylinder is the best feature of the present invention. The outer cylinder comprises a first pressed portion having a smooth surface pressed circularly in the radial direction inwardly except its both ends, and at least one second pressed portion formed on the portion of the first pressed portion and depressing the outer surface of the hose by its inner periphery surface. Since no machining operations are required to manufacture the hose intermediate retainer, the manufacturing cost is reduced, in addition the hose intermediate retainer thus manufactured exhibits an excellent tensile strength.

Abstract: A coupling for connecting a flexible hose to a fluid source, such as a gasoline fuel pump, comprised of a stem member on one end of the coupling for being inserted into the inlet end of the hose, an annular collar member for limiting the depth of insertion of the stem member into the hose and a male threaded member on the opposite end of the coupling for engaging complementary female threads to attach the hose and coupling to the fluid source. A recessed portion is defined between the collar member and male threaded member. The recessed portion has a plurality of relatively flat outer surfaces around the perimeter thereof, which are interconnected to define a square with rounded corners. A cylindrical sleeve member is concentrically disposed on the hose adjacent to the inlet end thereof so that the sleeve member slightly overlaps the inlet end.

Abstract: Method and apparatus for fastening of a sealing bellows (3) to a ball joint housing (1) in motor vehicles wherein the sealing bellows (3) has a housing end rim (16) that engages an approximately cylindrical bellows seat (11) formed on the outer rim of the joint housing defining an opening (10) through which a shank extends, and a retaining ring (5) made of sheet metal and surrounding the housing end bellows rim (16) for sealingly connecting the bellows to the housing, has an outer circumferential recess (17), is slipped onto the housing end bellows rim (16), and is then axially compressed so that its inner diameter is reduced, whereby the housing end bellows rim (16) sealingly engages the bellows seat (11) on the joint housing (1).

Abstract: A hose end sleeve is provided which includes an elastomeric body with proximate and distal ends and a bore extending therebetween. The bore receives a female hose coupling nut adjacent the distal end whereat the body is expanded to receive the nut in a fixed engagement. The bore rotatably receives a hose tube extending from the female coupling so that the sleeve is adapted for rotating the coupling nut with respect to the hose tube.

Abstract: This disclosure relates to apparatus and method for forming a hose and fitting assembly. The fitting comprises a nipple and a socket. One end of the nipple is inserted into the end of a length of hose and the other end of the nipple is attachable to another part such as a swivel connector. The socket is mounted around the nipple and the end of the hose, and the socket is crimped. A first part of the socket is crimped into engagement with the hose, a second part is crimped into direct engagement with the nipple, and a third part of the socket is crimped to form wrench flats. The apparatus for assembling the hose and fitting comprises a die set and a mechanism for forcing the dies of the set against the socket. Each die comprises first, second and third parts which respectively engage and crimp the first, second and third parts of the socket.

Abstract: A hose bibb extension assembly includes a specially designed mounted stake adapted to be pushed into the ground in front of a hedge or the like positioned closely adjacent a wall-mounted hose bibb and impeding access thereto. A hose barb fitting is firmly anchored to an upper end portion of the stake and couples the inlet of an auxiliary hose bibb to the outlet end of a high pressure extension hose. By connecting the inlet end of the extension hose to the wall-mounted, primary hose bibb, and turning and leaving such hose bibb on, the stake-supported auxiliary hose bibb may be coupled to a lawn watering hose and be conveniently used to control water flow thereto without the previous necessity of reaching under, through or over the obstructing hedge to operate the primary hose bibb.

Abstract: An interconnection between a plastic pipe and a larger diameter metal pipe having a first retainer ring received onto an end of the plastic pipe, a compressible bushing on the plastic pipe in contact with the first retainer ring, a second retainer ring, a pliant cylindrical seal in contact with the second retainer ring, a washer, an insert tube within the plastic pipe having an enlarged end contacting the washer, the metal pipe being deformed to clampingly engage and distend the pliant cylindrical seal.

Abstract: The hose intermediate retainer comprises a tubular member having a flange-shaped portion, a ringlike groove and a plurality of vertical grooves (flutes). The vertical grooves (flutes) extend in the axial direction at circumferentially fixed intervals to an outer peripheral surface or an inner peripheral surface of the tubular member. With the hose inserted into the center hole of the tubular member, the tubular member is caulked (i.e., squeeze-formed) from all directions, with the result that the diameter of the center hole becomes sufficiently small and thus the hose is fixedly held by the retainer.

Abstract: A drain system for the floating roof of an oil tank or similar tank couples a drain sump at the underside of a central portion of the floating roof to the outside of the tank wall at a lower portion thereof via a flexible arrangement of rigid pipe lengths joined together by swivel joints. Each swivel joint is made pivotable about an single axis by a pair of side frames having pairs of leg portions pivotally coupled to each other along the axis and mounting a length of flexible pipe therebetween. The opposite ends of the length of flexible pipe are coupled to an opposite pair of pipe couplings mounted on central portions of the side frames between the leg portions and adapted to be coupled to the lengths of rigid pipe. The length of flexible pipe which is comprised of a length of flexible hose disposed between inner and outer wire helices is coupled to the pipe couplings by arrangements which include swedges, swedge rings and collars.

Abstract: A pressurized fluid coupling and a method of manufacturing the pressurized fluid coupling are disclosed. The pressurized fluid coupling includes a metal tube having circumferentially extending beads formed therein for receiving a free end of a flexible tube thereon. The method of manufacturing the pressurized fluid coupling includes selectively hardening alternating wall portions of the metal tube by roll grooving spaced apart circumferentially extending grooves therein. After roll grooving the grooves into the tube, the tube is clamped in a clamping mechanism, and the end of the tube is subjected to an advancing punch mechanism which causes circumferentially extending bulges to form in the tube between the spaced apart grooves. The circumferentially beads add strength to the end of the tube for allowing a flexible hose to be compressedly secured thereto without collapsing the tube.

Abstract: A high pressure manifold brake hose end fitting used in a brake system to reduce the number of wet fittings required in the brake system. The manifold brake hose end fitting has a crimped sleeve connection to a reinforced rubber brake hose on one end, a first receptacle for a hydraulic fitting on the opposite end and a second receptacle formed in the side of the fitting between the one end and the opposite end. A conduit is provided for hydraulic fluid flow through the fitting and in one embodiment, the conduit is preferably eccentrically located away from the side of the fitting including said second receptacle. An end fitting providing three or more receptacles in a single fitting that may be part of one or more fluid systems is disclosed. A brake system and a method of installing brake fluid conduits are also disclosed which use the end fitting to reduce the number of wet fittings in a brake system and reduce the number of steps required to install a brake fluid conduit on a vehicle.

Abstract: This disclosure relates to apparatus for making fluid flow connections. The apparatus comprises a tubular metal member having first and second ends. The first end is mechanically formed to the shape of one part of a two part quick-connect coupling, the one part being integrally formed on the first end of the member. The second end is mechanically formed to the shape of another fitting part which is also integral with the member. The portion of the member between the two ends is shaped to follow a desired path in order to interconnect other components.The one part of the quick-connect coupling preferably forms a tubular receptacle having an annular internal groove, a snap ring in the groove, and a relatively viscous fluid at least partially filling the groove around the ring.The disclosure also relates to a method of making and assembling apparatus as described.

Abstract: Twin seals are provided between an end fitting and a convoluted hose connected thereto. The end fitting has two parts, one of which terminates in an elongated member having large and coarse threads on the outside thereof. As the elongated member is turned into the end of the hose, convolutions at the end of the hose are either scrunched and squeezed together or stretched over a ramp section. One of the seals is along the surface of the large threads and the other is a result of the end thrust either the scrunching and squeezing or the stretching of the end convolutions. A pilot end of braid on the hose pulls it to increase the end thrust. In some embodiments, a third seal is made between the outside surface of the hose and a gland surrounding the hose.

Abstract: A method and pipe connecting piece for connecting a pipe to a fluid port, such as another pipe. The pipe connecting piece has an end portion for insertion into the bore of a pipe-end, an intermediate portion of larger diameter than the end portion, an attachment means for attaching the connecting piece to a fluid port, and a sleeve.

Abstract: A hose coupling for permanent attachment to a hose having a reinforcing braid layer intermediate inner and outer layers of rubber or plastic has an outer sleeve which is circumferentially crimped to the hose at at least four axially spaced rings. The coupling includes a smooth walled insert inside the hose engaging the inner surface of the hose.

Abstract: A hose coupling in which an insert is insertable within the end of the hose and a ferrule is swaged radially around the hose to grip the hose between the ferrule and insert is adapted to accommodate different hoses of the same nominal bore while having a stop member on the ferrule to contact an abutment on the insert and provide relative location therebetween before swaging, the stop member being collapsible on swaging to prevent the insert being crushed. A hose stop may also be provided to position the end of the hose with the coupling.

Abstract: A device for securing a brake hose at an intermediate portion thereof to an appropriate point in a vehicle body comprises an outer body provided on the circumference of the brake hose, and a nipple positioned beneath the inner surface of the brake hose. The outer body is provided with a collar, a groove and a sleeve portion on which compressing force is applied while the nipple is provided with a main groove at a point corresponding to the compressing force applying point and auxiliary grooves adjacent to the main groove.

Abstract: A swivel hose coupling assembly and method provides a collar having an angularly inwardly disposed locking annulus. The angular disposition of the locking annulus permits a novel method of assembling the swivel hose coupling members.In a preferred form, the assembly is designed for affixation to one end of an elastomeric hose, and includes a cylindrical insert having a serrated external surface at one end thereof, a shoulder at an opposing end, and a locking groove intermediate the serrated surface and shoulder. A fitting is rotatably mounted over the insert, the fitting having a mating shoulder for contact with the shoulder of the insert. An annular collar is concentrically positioned over an exposed end of the fitting, a first end of the collar containing the locking annulus being inserted first over the serrated portion of the insert.

Abstract: A hose coupling of the so-called wire-trap type having an insert and ferrule adapted to be fitted to the end of a wire reinforced hose from which a portion of the inner and outer elastomeric core and cover is removed to expose the wire reinforcement, the coupling gripping the wire reinforcement in a zig-zag path formed between a rib and groove on opposite ones of the ferrule and insert, the flanks of the rib and the side walls of the groove being parallel and inclined at between 10.degree. and 30.degree. to the plane of the rib and groove.

Abstract: A polybutylene tubing coupling and method of making that coupling utilizes a male tubular connector element having the same inside diameter as the major extent of the tubing. A coupling element is provided with stop shoulder at one end and a series of annular radially projecting barbs on its outside diameter which are preferably undercut in the direction of the stop shoulder or tubing end. An end of the tube is treated preferably by heating to enable the material to expand and the tubing end is inserted on or slipped over the male element against the stop shoulder. In such position the treated tubing end is mechanically compressed between two semi-circular dies to cause the material of the treated tubing end to flow around the barbs. Thereafter a metal crimp is placed around the tubing end between the stop shoulder and the next adjacent barb, or over the top of one or all barbs. The tubing connection thus formed is then permitted to cool at ambient temperature for approximately 7 days.

Abstract: A coupled hose assembly of the type including a coupling attached to a polymeric hose by pinching part of a hose end portion. A pliable adhesive is disposed in part of the coupling to define a substantially leakproof seal between the hose and coupling at an environment temperature falling at least within the range of about 135.degree. C. to about -40.degree. C.

Abstract: A clamping ring for use in pipe joints has an inside surface which is formed with generally peripherally extending indentations for axially fixing a pipe. In order to prevent an occurrence of dangerous stress concentrations in pipes in contact with such clamping rings and to permit such rings to be manufactured economically, the clamping ring is formed on its inside surface with a multiplicity of generally peripherally extending indentations, each of which extends only along part of the periphery of said inside surface, and said indentations are offset from each other in said peripheral directions and adjoin or overlap.

Abstract: A process for producing a tubular rubber product such as a rubber hose and a rubber coupling in which a polyamide resin and/or polyester resin layer is formed to the main body of a tubular rubber product. The resin layer is formed either by coating an organic solvent-soluble nylon to the surface of the main body of the tubular rubber product applied with the surface treatment of a halogenoid compound, or by polyamide resin or by polyester resin film having a softening point in the vulcanization temperature region and treated with an adhesive mainly comprising a resorcine-formaldehyde resin and a rubber latex or treated with an adhesive rubber mainly comprising a resorcine, a formaldehyde-forming substance and a vinylpyridine-butadiene-styrene copolymer rubber and then bonding under vulcanization onto the main body of the non-vulcanized tubular rubber product.

Abstract: A hose coupling, method of making the same, and the hose coupling in combination with a tubular hose are provided, the coupling comprising a tubular insert portion to be inserted into one end of the tubular hose and a tubular ferrule portion disposed in substantially concentric and spaced relation about the insert portion to define an annular recess therebetween and being adpated to be radially inwardly deformed toward the longitudinal axis of the coupling to clamp the end of the hose between the ferrule portion and the insert portion, the ferrule portion having a plurality of inwardly directed and axially spaced apart annular ridges for deforming into the one end of the hose with each ridge having opposed annular side faces and an inner annular free end face therebetween, each side face having a substantially straight axial cross-sectional configuration that forms an acute angle with a radially disposed centerline of its respective ridge and each free end face having a substantially straight axial cross-sect

Abstract: Herein disclosed is a hose joint which comprises an outer tube having a threaded portion at one side of a flanged portion and a sleeved portion at the other side, and an inner tube arranged in the outer tube and having a nipple portion positioned in the sleeved portion and a tapered sealing portion for providing communication between the nipple portion and the threaded portion of the outer tube and for acting for a mating member to be jointed to the hose joint. Both the outer tube and the inner tube are made of a tubular material such that at least the flanged portion of the outer tube and the sealing portion of the inner tube are plastically deformed.

Abstract: A fitting formed with a circular flange formed coaxially with a spigot which is formed along its length with a series of frusto-conically shaped, axially spaced apart, sealing rings which are formed at their enlarged ends with respective annular holding rings. A metallic stiffener tube is received telescopically in the fitting to provide support against radial inward collapse thereof. The spigot may be formed adjacent the flange with an enlarged in diameter centering shoulder and may be formed at its extremity remote from the flange with a reduced in diameter stress relief nipple. A finishing sleeve is provided for telescopical receipt over a polyethelene pipe fitted over the spigot. Thus the spigot may be inserted into the end of the plastic pipe to expand such pipe to an expanded configuration.

Abstract: A hose coupling wherein one terminal portion of the hose surrounds a first circumferentially extending external rib of a nipple. The rib is adjacent to the free end of the nipple and is separated from a second external rib by a cylindrical portion of the nipple. The terminal portion of the hose is surrounded by an annular clamping member which has a circumferentially complete annular portion surrounding the hose and being spaced apart from the nipple as well as several axially parallel elastic prongs which surround the first rib and the cylindrical portion of the nipple and have inwardly extending projections engaging that flank of the second rib which faces away from the first rib. Certain prongs are further provided with teeth which abut against the end face of the terminal portion of the hose.

Abstract: A pipe connection in which an improved method and apparatus for forming a quick-coupling connecting nipple for plastic pipe is disclosed. A plastic pipe section having an annular groove perpendicular to the axis of the pipe is disposed about the periphery of the pipe section at a longitudinal distance from the first end of the pipe section. A steel sleeve is friction fitted about the plastic pipe section and a groove is rolled about the outer periphery of the sleeve to present an annular shoulder disposed within the inner periphery of the sleeve. The shoulder of the sleeve snaps into the groove of the plastic pipe section. The other end of the sleeve is crimped inwardly into the pipe surface so that the sleeve is substantially flush with the outer diameter of the pipe section.

Abstract: A hose coupling has a coupling body which is constituted by a hose joint portion connected to a hose, and an eye-joint portion connected to a fixed-side element. The coupling body is provided with a pin for fixing the coupling body. The pin has its distal end portion engaged with a hole provided in the fixed-side element and its proximal end portion connected to the coupling body. The distal and proximal end portions of the pin have their respective axes made to be offset in parallel to each other. The proximal end portion is connected to the coupling body in such a manner that the distal end portion is pivotal about the proximal end portion.

Abstract: A thermosetting resin layer covers the outer peripheral surface of the nipple portion of a joint provided on one end of a connecting pipe. A hose having a reinforcing layer between a single- or double-layer inner tube and an outer tube is inserted over the nipple portion of the joint, and tightened by a caulked sleeve or clamp encircling the hose to form a joint structure. This joint structure provides a satisfactory seal for a long period of time, as its resin layer does not undergo any crystallization, but maintains elasticity.

Abstract: A flexible corrosion-resistant tubular sleeve provides protection for hose assemblies subjected to abrasion, kinking, or accidental rupture due to flexure. The sleeve also provides routing control for hose end assemblies, providing greater axial strength, yet greater flexibility by the incorporation of a helical body portion. In a preferred embodiment, the sleeve is a single-piece body of molded polypropylene, and defines a pair of annular end portions integrally joined together by the helical body portion.