Abstract: A fitting of weldable thermoplastic material for connecting pipe elements or other fittings. The connection is obtained by welding by means of at least one heating element arranged at the surfaces of the members to be welded together. At least one weld indicator defined by a hollow space in the fitting is provided. The hollow space defines a first opening at the inner surface of the fitting and a second opening at the outer surface of the fitting. The first opening is covered by the heating element and the second opening defines a portion of reduced width, the portion of reduced width defining a retaining or cooling surface facing the interior of the hollow space. The second opening serves as an outlet opening for the melt. During welding, melt is conducted into the hollow space by the generated welding pressure. The melt solidifies when it reaches the retaining and cooling surface and only a small portion of the melt is conducted through the outlet opening for indicating a problem-free welding connection.

Abstract: A quick connect and disconnect coupling includes a connetor for housing a fluid conduit. The conduit includes a flexible tube terminating in an upset bead. One or more adjoining O-ring seals encircle the tube adjacent the upset bead. The connector includes a plug for receiving the tube. The plug terminates in an end wall adjacent the O-rings. A first chamfer is provided in the plug end wall. A second chamfer is provided in the upset bead adjacent the O-ring seals. During installation and removal of the connector, the O-rings are compressed and forced into the first and second chamfers to retain the O-rings in place on the tube.

Abstract: A method of connecting two thermoplastic pipes and joint resulting therefrom which includes an electrically conductive insert sleeve with radially extending barbs alternately projecting to the inside and outside diameter of the sleeve into the adjacent fused plastic to achieve the joint.

Abstract: The improved tubular joint of the present invention includes the tubular members each having a thickened portion near their adjoining ends which thickened portions have substantially the same stiffness as the thinner portions of the tubular members, an inner band positioned within the thickened ends of the tubular members and an outer band positioned around the thickened ends of the tubular members, said inner band having a plurality of capture plates with each having a threaded openings facing outwardly and registering with the openings of the bolt sleeves which extending through the outer band and the end of each of the tubular members, bolt shafts extending through said bolt sleeves in threaded engagement with said threaded openings in the capture plate and sealed within said bolt sleeves, locking nuts on the outer ends of said bolt shafts, means for sealing between the exterior of the inner band and the interior of each of the tubular members, means for testing the effectiveness of the seal between the in

Abstract: A conduit coupler (10) for connecting adjacent sections (12,14) of a conduit system having a plurality of inner ducts (16) contained in an outer cylindrical conduit (18). The conduit coupler (10) is a one-piece cylindrical body of resilient rubberlike material with a plurality of spaced sets of circumferentially extending gripper ribs (28) at the outer surface of each end of the coupler (10). Cylindrical chambers (30) for the inner ducts (16) have inner seals extending circumferentially around the surface of the chambers (30) to seal the space between adjacent sections of the inner ducts (32,34).

Abstract: A slip-joint coupling (10) comprises a first coupling piece (12) having a first pipe-mounting portion (16) at one end and a first coupling mating portion (18) at the other end and a second coupling piece (14) having a second pipe-mounting portion (20) at one end and a second coupling mating portion (22) at the other end. The first and second pipe-mounting portions each has a coupling inner diameter as an inner diameter for snugly fitting on outer surfaces of standard plumbing pipes and a coupling outer diameter as an outer diameter. One of the first and second coupling mating portions has the coupling inner diameter as an inner diameter and has an intermediate diameter as an outer diameter. The intermediate diameter is intermediate the coupling inner and outer diameters. The other of said first and second coupling mating portions has the intermediate diameter as an inner diameter and the coupling diameter as an outer diameter.

Abstract: A polyethylene pipeline including a plurality of prefabricated pipes of predetermined diameter fused on one end to respective bell fittings to form prefabricated bell and spigot pipe assemblies. The bell connector includes an enlarged in diameter bell connector formed with a socket having an internal diameter for telescopical receipt of the second end of the adjoining pipe length and includes an increased in diameter interior gland for receipt of a helical heating coil. The heating coil is constructed of an electrical resistant wire coated with an electrical insulative coating which is, in turn, coated with a medium density polyethylene coating. The terminal ends of the wire is coupled with electrical connectors protruding to the outside of the bell connector.

Abstract: A one-piece connector has a stepped bore, a first end to accommodate an outlet pipe of an outlet tap of a urine drainage leg bag, and a second end to accomodate a nozzle on an inlet pipe of an overnight drainage bag.The second end includes a hand-grippable tab with an enlarged free end.The connector is removed from the nozzle by pulling the tab in a direction towards the leg bag. This pulling action on the tab reduces substantially the tension needed to separate the connector from the nozzle.

Abstract: An improved tubing connector assembly for coupling flexible tubing and forming a fluid tight seal is described. The tubing connector assembly includes a connector threadably engaging a nut to fully enclose a ferrule and a collet. Due to the surface interactions between the components of the invention, the ferrule and collet are axially compressed to grasp the tubing and obtain a very strong mechanical grip.

Abstract: The invention relates to a connecting piece for connecting tubular members such as hoses, pipes, or other structural parts, carrying fluids with each other. A clamping part is available which has two half shell-shaped clamping halves with one clamping surface curved in accordance with the outer circumference of the end of the tubular member to be inserted. In their plug-in position the clamping halves are arranged at a distance to each other which permits insertion of the plug-in end of a tubular member. In their clamping position they enclose non-displaceably the plug-in end of the pipe, the hose or similar and they are simultaneously fixed on a contact part of the connecting piece.

Abstract: A flexible, adjustable tube which comprises a tubular body of pleated asymmetrical accordion fold configuration wherein each pleat is defined by a thrust cone wall segment and a Belleville washer-like wall segment. The narrower ends of the two wall segments are integrally connected to form an annular articulation about a central axis and the wider ends of the individual Belleville washer wall segments of each pleat are integrally connected to the wider ends of the thrust cones of the next succeeding pleat, to form an annular articulation about the central axis. The Belleville washer-like wall segments of each pleat are proportioned to be snap shifted through the articulation of same to the thrust cone of the next adjacent pleat, for shortening or lengthening the tube. Similar partial snap shifting of the individual Belleville washer wall segments may be effected, for angulating the tubular body, by canting the thrust cone wall segment of a selected pleat sidewise.

Abstract: A connector having a male part and a female part, the latter having a hollow body and a hollow housing portion connected thereto to form a passage for flow of fluid. The portion is provided with at least one detent on the inside wall and has an opening on the end remote from the body. The detent is provided with a sloping surface which flares in the direction of the opening and also has an abutment surface facing toward the body.The male part has a front end which is inserted into the opening and carries an inclined surface which is complementary to the sloping surface of the female part. In a manner analogous to the female part, the male part is provided with an abutment facing away from the front end and adapted to abut the abutment surface on the female part when the connector is in closed position.

Abstract: A connection device for use in securing an end of a corrugated pipe to a fitting such as a terminal box connector or a pipe-to-pipe coupling has an array of fingers extending axially from an annular ring, for insertion into the fitting. Enlarged head portions at the inner ends of the fingers serve to engage the ribs or corrugations on the pipe outer surface, when a pipe is inserted therepast, and also provide a differentiated camming action to secure engagement of the head portions with a corrugation of the pipe and to prevent withdrawal of the pipe from the fitting. The fitting with which the device is combined also has an axially extended inner peripheral seat against which the pipe corrugations seat, to preclude passage of concrete betwen the pipe and the fitting.

Abstract: A pipe socket insert is disclosed for use within the socket of a length of plastic pipe. The insert is formed as a shaped annulus having a rearward, downwardly inclined ramp and a forward, downwardly inclined ramp, the rearward ramp and the forward ramp having a circular transition zone therebetween. The rearward ramp is provided with a plurality of circularly spaced valleys defined one from the other by circularly spaced ribs, the ribs forming portions of the outer peripheral configuration of the rearward ramp for contact with portions of the inner periphery of the pipe socket. Additionally, if desired, the forward ramp can also be provided with a plurality of circularly spaced valleys defined one from the other by a plurality of circularly spaced ribs.

Abstract: A plastics cover for a piping which comprises a plastics cover body of a wide strip-like shape and a substantially T-shaped rib arranged on one side edge of the cover body. The rib includes a leg portion connected to the cover body and a wing portion, so that an inner groove and an outer groove is defined between the wing portion and the cover body. Mounting of the cover on a pipe is carried out by interengaging a first engagement projection on the inner surface of the wing portion and a second engagement projection on the outer surface of the other side edge of the cover body.

Abstract: A pipe connecting member of plastics material for pressurized fluid lines. The pipe connecting member has sleeve portions and a middle portion extending between and connecting the sleeve portions. The sleeve portions receive in a tightly sealed manner the pipes to be connected. The middle portion has an outer surface which is circular in cross-section. The middle portion has a wall thickness which changes continuously in circumferential direction and an inner surface with two inner surface area portions which extend eccentrically relative to the outer surface of the middle portion. The middle portion has the greatest wall thickness where it intersects the plane extending through the sleeve axes.

Abstract: A hose coupling which has an integrally moulded lip which has an innermost surface defining a frusto-conical shape and a portion of reduced thickness to provide for pivoting freedom of the lip to effect both a grip and seal of a hose that can be inserted therethrough. The lip has axially extending tails which are segmented allowing for expansion or contraction as necessary of the lip but providing a limit to the pivotal freedom of such lip.

Abstract: A duct joining system for sealingly connecting plastic gas-conveying ducts is provided. The joining system comprises a receptacle attached to an end of a first duct and sealingly fastened thereto. The receptacle has a size and configuration which is adapted to mate with an end of a second duct. The second duct has a grippable surface extending along its length. The interior of the receptacle contains releasable gripping means and a sealing gasket. The gripping means engages with the surface of the second duct in order to urge the end of the second duct into sealing contact with the gasket.

Abstract: A below ground meter box for a fluid meter includes a first sleeve for placement at the bottom of a pit in which the fluid meter is located, the first sleeve having apertures for receiving fluid conduits for the fluid meter and a second sleeve of greater axial length than the first sleeve but of substantially the same diameter; the upper edge of the first sleeve has internally an abutment edge spaced a small distance therefrom and externally a curved wall section extending above the upper edge so that when the second sleeve engages the upper edge of the first sleeve, the curved wall section will prevent lateral movement between the sleeves.

Abstract: To alter the surface qualities of nonreactive materials, such as polypropylene and polyethylene in order to provide a means for bonding the plastic to metal, hard granular materials of oxides or carbides are partially impregnated into the surface of the plastic by application of heat and pressure so that granular edges remain exposed. Thereafter, a silver coating is applied over the impregnated plastic to interlock with the granules. The composite layered plastic then provides a means for soldering or bonding the plastic to a metallic coupling using either a bonding cement or a low temperature solder such as bismuth, lead, or tin based solder. Abrasion-resistant qualities also are improved by impregnating the internal surfaces of a plastic tube in order to improve its wear-resistance during transporting abrasive slurries of sand, coal, and the like.

Abstract: An improved lawn sprinkler fitting is provided for repairing leaks in lawn sprinkler systems and for replacing leaky components in such systems. The improved fitting of the invention is a tubular coupling having opposite annular ends formed with wall thicknesses which are sufficient to maintain the shape of predetermined circular openings therethrough. At least one intermediate annular corrugated section is disposed between the opposite ends and has a wall thickness less than the wall thickness of the opposite ends. The intermediate section is both longitudinally compressible and longitudinally extendible. The intermediate section of the coupling is compressed to allow the coupling to be inserted between exposed ends of buried lawn sprinkler pipe. A solvent type adhesive is applied to the exposed ends of the pipe and the intermediate section of the coupling is extended, thereby bringing the annular ends of the coupling into contact with the exposed ends of the buried pipe.

Abstract: The present invention comprises a manifold coupling for connecting a plurality of conduits which carry pressurized fluid in a sequential manner. Each portion of the manifold coupling is a duplicate of the other portion. Each portion has locking means and alignment means to prevent the misaligned connection of the conduits. The alignment means includes a keying arrangement built into the housing walls of each portion of the coupling. A reinforcement means is configured into the walls to prevent yielding thereof, and inadvertent misalignment of the coupling portions.

Abstract: An adjustable telescoping union for repairing or connecting two ends of PVC pipe which cannot be manipulated lengthwise is provided in a two piece telescoping coupler. An internally lipped tubular housing having a retained sleeve sized to standard PVC pipe can be adjusted laterally to join two ends of the pipe and has gluing means for a permanent and leak-proof rejoining of the two separated pipe ends.

Abstract: A unique laboratory glassware system is provided which includes glass functional members and an elastomeric coupling member for joining two of the functional members in axial alignment. Each of the functional members has a conduit portion terminating in a male sealing portion. The male sealing portion comprises an annular flange with a front conical surface and a rear locking shoulder. The coupling member includes a central opening having a gasket portion separating two axially aligned bores that include a female sealing portion corresponding in profile to the male sealing portion. The conduit portion of the functional members form a positive engagement with the female sealing portion of the coupling member such that the joined functional members snap into position and are locked against internal pressure that could pull them apart.

Abstract: A fluidic device housing having strain relief including an integral connector for receiving a fluid carrying tube and an integral strain relief for relieving strain on the integral connector which may be caused by the fluidic carrying tube.

Abstract: A system and method for passing conduit through a wall so as to maintain a firebreak for the wall wherein a coupling having relatively low thermal conductivity properties and relatively high fire resistance properties is mounted in an opening in the wall and secured therein by thermal barrier sealing material and one end of a first conduit is inserted into a first side of the coupling and one end of a second conduit is inserted into a second side of the coupling and wherein the first and second conduits have relatively high thermal conductivity properties and wherein the one ends of the first and second conduits are located and maintained a distance from each other so as to provide a thermal barrier therebetween.

Abstract: A coupling device for tubing for use in pressurized fluid systems and having a locking and unlocking actuator lever supported by an annulus in a flexible manner producing a mild bending movement of the annulus corresponding to pivotal movements of the lever.

Abstract: Provision is made for installation, in the interior of a plastic coupling, of a cylindrical tubular-shaped metal insert with internal threads and having an externally knurled external flange at one end, followed by an intermediate section whereon external teethlike serrations or the like are provided, finally followed by a circumferential recess to house an elastic sealing ring, which insert is installed in the plastic coupling after the latter has been molded, and by embedding through transmission of pressure and heat.

Abstract: A coupling device between a hose and the radiator of a motor vehicle has a nipple on the radiator with a circumferentially complete rib at its front end. The front flank of the rib is conical and the rear flank of the rib extends radially of the nipple and is adjacent a groove with three equidistant axially parallel ramps one of which is in line with a bridge extending forwardly of the conical flank. The end of the hose is attached to a coupling element with three equidistant prongs each having a radially inwardly extending claw at its front end. The claws slide along the conical flank of the rib when the front end of the coupling element is inserted into the front end of the nipple, and the claws ultimately enter into and are held in the groove. Each claw has two mutually inclined cam faces, the same as the bridge.

Abstract: A plumbing construction is provided including a pipe, a fitting, and a bushing, each formed from polybutylene and providing a fluid-tight connection between the pipe and the fitting. The bushing is mounted about the pipe and an end of the pipe and the bushing is inserted into the fitting. The bushing is rotated with respect to the fitting to produce friction welds between the bushing and both the pipe and the bushing.

Abstract: Polyolefin pipe having an integral end connection. The pipe is fabricated with male and female end connections in order that the pipe may be press-fitted together with the interior and exterior forming a flush uniterrupted surface. One or more radial ribs and grooves are formed on the interior of the female connection while a registering series of ribs and grooves are formed on the exterior of the male connection. The ends of the pipe are bevelled in order that the ends pressed together engage and by the slight resiliency of the polyolefin pipe construction permit the slight expansion and contraction of the ends to provide a locking interfit of the respective ribs and grooves in the two ends. The wall thicknesses of the end connection and width of the ribs and grooves are particularly dimensioned in order that the male end may be inserted to a complete lock position without premature engagement and that should failure occur, it be at the readily observable pipe wall rather than in internal rib.

Abstract: A composite structure comprises at least one ply comprising approximately parallel unidirected twines comprising helically-configured matrix-impregnated continuous strands of filament reinforcements to provide a flanged composite cantilever spring which serves as the principal constituent of a coupling structure. An interior ply of a coupling structure body member comprises unidirected longitudinal twines configured at a body member extremity to provide a flange member connected to a cantilever spring. An exterior ply is disposed transversely of and superimposed upon the interior ply to provide the cantilever spring hinge line. The composite cantilever spring can be constructed to deflect about either a straight or curved hinge line. A preferred tubular form of the coupling structure comprises at least one end configured as a polygonal array of flanged cantilever springs which serve as the socket end of a spring-lock coupling used to connect mating flanged spigot-end structures.

Abstract: A tube connector has a cylindrical socket for mounting in a hole of a plate and a connector securable to a desired one of a plurality of radially spaced-apart mounting positions of the socket and having opposite end cylindrical portions for tube connection provided on the axially opposite sides of the socket and communicating with each other.

Abstract: A composite structure comprises at least one ply comprising approximately parallel unidirected twines comprising helically-configured matrix-impregnated continuous strands of filament reinforcements to provide a flanged composite cantilever spring which serves as the principal constituent of a coupling structure. An interior ply of a coupling structure body member comprises unidirected longitudinal twines configured at a body member extremity to provide a flange member connected to a cantilever spring. An exterior ply is disposed transversely of and superimposed upon the interior ply to provide the cantilever spring hinge line. The composite cantilever spring can be constructed to deflect about either a straight or curved hinge line. A preferred tubular form of the coupling structure comprises at least one end configured as a polygonal array of flanged cantilever springs which serve as the socket end of a spring-lock coupling used to connect mating flanged spigot-end structures.

Abstract: A connection assembly is particularly useful for positively connecting a flexible hose member with an inlet plug for a suction source while being adapted for subsequent disconnection without requiring any specialized tools. In connecting operation, an integral extension portion of a flexible hose member is telescopically inserted into an inlet plug to a predetermined longitudinal stopping point therein, and then rotated so as to cause engagement of projections formed on the extension portion and projection-receiving holes formed in the inlet plug. Such engagement rotatably and longitudinally secures the flexible hose relative the inlet plug. Slots are formed in the inlet plug for guiding the hose member projections during longitidinal movement of the hose member. The hose member may be selectively withdrawn by reverse rotation of the hose extension portion and longitudinal removal thereof from the inlet plug.

Abstract: An adapter for coupling a flexible corrugated drainpipe to a sewage disposal site inlet, includes a hollow tubular member having an opened drainpipe end portion adapted to engage threadably an end of a corrugated drainpipe. A hollow adapter member has an opened rear end portion adapted to be inserted into the disposal site inlet, and an opened upstanding front end portion, receives telescopically in a tight fitting relationship an opened rear end portion of the tubular member to interconnect the two members in fluid communication. A quick release mechanism on the tubular and adapter members enables a user to disassemble the two members by rotating the members axially relative to one another.

Abstract: The invention provides a method for forming a composite material tube connection.On a rubber skin 1 are wound inserts 3 and 4 which form the extra thick portions required for snap fitting of the tubes, of the male end piece and of the female end piece, on these inserts and on the current part of the tube fibers 5 are wound circumferentially, on the tube is fitted a sleeve 6 previously formed, on the female end piece are bound strips 7 also formed previously, and a stop heel 10 is formed on the male end piece by a new winding.

Abstract: A conduit harness connector assembly comprising: an elastomeric female member having a body portion with first and second opposite sides and at least one integrally formed flexible, stretchable tube extending from one side thereof and bore extending through the tube and through to the second side of the body, each tube having a predetermined internal diameter; a first set of conduits wherein a separate conduit of the set extends into each of the flexible tubes, each of the conduits having an outer diameter greater than the inside diameter of the tubes, which are stretched over them to provide an elastomeric fit; a comparatively rigid male member having first and second opposite sides wherein a tube extends from one side thereof for each bore in the body portion of the female member and for insertion thereinto from the second side of the body portion and means for separately connecting a second set of individual conduits in fluid communication with each of the tubes thereof.

Abstract: The ends of flexible plastic tubes, particularly of relatively thin thickness, are closed with a cylindrical header or end plug over which an end of the plastic tube is fitted. A fluids connection between the wall of the plastic tube and the cylindrical header or plug is made by press fitting over the connection area a plastic ring smaller in diameter than the outside diameter of the plastic tube within the elastic limit of the plastic ring. Preferably the header and/or end plug have circumferential grooves or depressions into which groove or depression the wall of the tube is fitted or depressed, preferably by multi-turns of plastic threads. For corrosive and oxidizing environments the header, plug, plastic tube, sealing rings and depressing thread are composed of perfluorocarbon polymers.

Abstract: Radial device for anchoring a flexible tubular structure in an opening in a rigid wall, characterized by flexible tubular structure having a bead reinforced by a fragmented armature embedded in rubber, composed of individual elements in order to allow bead to bend in the axial direction so that it can slide into a bore of the rigid wall.The invention applies to any industrial assembly, such as for example, expansion joints, or any assembly on a vehicle, such as air suspension diaphragms.

Abstract: An aquatic vacuum hose swivel cuff coupling comprises, in combination, a blow-molded vacuum hose and a molded swivel cuff. The hose includes one end which terminates as a corrugated end portion having circumferential grooves therein. The swivel cuff component has a seating portion for receiving the corrugated end portion of the hose and at least one annular ring adapted to fit within the circumferential grooves of the hose, the annular ring being provided about the hose entrance to the seating portion of the cuff. The corrugated end portion of the hose is maintained within the seating portion of the cuff by the annular ring being disposed within the circumferential grooves whereby the hose may be swivelably rotated within the cuff. The corrugated end portion of the hose is extruded with the continuous extrusion blow-molded hose thereby eliminating the need to weld components such as seals.

Abstract: A joint, and method for constructing the joint, are provided for connecting sections of multi-cell conduit in an end-to-end manner to produce long runs of conduit for carrying fiber-optic cables or the like, wherein the joints produced will isolate, in a substantially airtight manner, each of the individual cells from the adjoining cells.

Abstract: A non-metallic vacuum probe for elevated temperature service having a probe body portion for coupling to a vacuum line. The probe body portion is coupled through a washer shaped low friction bearing surface and gasket for sealing to a probe flange portion. Interconnection of probe body portion and probe flange portion is provided through lug and ramp means. The probe flange portion includes vacuum channels on the bottom major surface region for vacuum bag and blanket curing of plastic components or panels in autoclaves or ovens.

Abstract: A connection assembly for joining two parts having confronting ends with a joint therebetween, particularly ceramic pipes, includes a dimensionally stable coupling member surrounding the joint and at least one of the two confronting ends of the two parts to be joined. The coupling member is dimensioned to define a space with the at least one part end. This space is filled with a ceramic fiber mat material containing a swelling agent capable of volume expansion when subjected to a temperature above a given minimum temperature. As a result, upon being subjected to an operating temperature above such given temperature, the swelling agent swells the ceramic fiber mat material, such that the mat material is compressed between the coupling member and the at least one part end surrounded thereby, thereby connecting the two parts.

Abstract: An adhesive, suitable for joining cured polyolefin articles, comprising a water curable polyolefin having a melt index of from 0.1 to 20, and a method of joining cured polyolefin articles, especially cured polyethylene pipes, comprising a step to apply the above adhesive to the surface of the articles and a step to join both of the surfaces to each other with the melt of the adhesive.

Abstract: The disclosure relates to a quick release tube couplings in which a collet with resilient arms is arranged to co-operate with a tapering cam surface in a member surrounding the collet to force the arms to grip a tube within the collet. The member is formed from two, male and female parts each having a bore, the male part bore being tapered to provide the cam surface. The male and female parts are assembled with a pair of annular surfaces on the respective parts spaced apart by an edge or projection on one of the surfaces and ultrasonic vibration is applied to soften the ridge to cause the surfaces to weld together and to allow two other opposed annular surfaces to come together and be welded by said ultrasonic vibration to weld the two parts together at two spaced annular region.

Abstract: A female connector member for use in a quickly-attachable connector assembly with a male connector member comprises a housing formed with a socket for receiving the male connector member and further formed with a pair of circumferentially-spaced openings through a wall leading into said socket; and a locking member having a flexible arcuate section received on the outer face of the housing, and a pair of oblique locking elements normally projecting through the openings into the socket for locking the male connector member therein. The outer faces of the locking elements are inclined at an acute angle to the longitudinal axis of the socket and converge in the direction of the mouth of the socket, such as to facilitate the insertion of the male connector member into the socket by a small push force and to lock the male connector member against withdrawal from the socket even by a large pull force.

Abstract: A T-shaped hose includes a vulcanized main hose having a wall with an opening therein and a vulcanized branch hose having one end disposed adjacent to the opening in the main hose, so that the hoses are approximately in the form of a "T". A hollow generally cylindrical branch sleeve having a generally outwardly directed flange at its lower end and an annular recess formed in the outer wall of the sleeve adjacent to the flange, is disposed primarily within the branch hose with the flange engaging the inner wall of the main hose and defining therebetween an annular channel. A fixation member composed of a vulcanizable rubber is received with the recess and channel.

Abstract: A fuel filler member for vehicles is disposed between and fluidly connects a fuel filler inlet on the vehicle with the vehicle fuel tank. The fuel member includes a first corrugated filler pipe placing the inlet and tank in fluid communication, and a second corrugated breather pipe contained within the first pipe, for conveying air present in the tank towards the fuel filler inlet. The first and second pipes are made of nylon, while the sleeves and/or members connecting the pipes to the filler inlet and tank are made of an acetal resin.

Abstract: A method and apparatus for manufacturing a centrifugally cast pipe for use in a chemical and corrosive atmosphere is provided. The centrifugally cast pipe has an integrally cast socket or coupling at one end of the pipe. The socket is cast onto the pipe. At the same time that the pipe is cast, both socket and pipe are cured simultaneously, creating a homogeneous wall from body to socket through the transition zone.