Abstract: According to the invention, the coupler (1) for a textile-reinforced rubber hose is of the type comprising a metal end-fitting (2) and a metal bush (3) between which one end of the hose (5) is imprisoned by crimping. The coupler (1) has three separate zones, a zone (A) providing a fastening function, a zone (ED) providing a dynamic-sealing function and an intermediate zone (ES) providing a static-sealing function. Such a coupler enables textile-reinforced rubber hoses to be used at pressures of the order of 200 bar.

Abstract: A threaded connection for tubing joints having a threaded part and a matching part fixedly connected with the tube, which embraces the tube externally and rests with an inner surface having grooves at the outer surface of the tube, wherein the fixed connection between the matching part and the tube is produced by rolling material of the tube into the grooves, the matching part 2 having at least one groove 7, 8 which is conducted in a threaded shape manner, so as to prevent failure of the tubing joint by crack formation.

Abstract: A crimp ring fitting for connection to plastic or composite piping, the fitting including a spigot having one or more circumferentially extending ribs for engagement with the inner surface of the piping, a shoulder from which the spigot extends, a resilient sleeve extending coaxially with and spaced apart from the spigot, the sleeve terminating at one end in an inwardly directed flange adjacent the shoulder for retaining the sleeve about the spigot and at the other end in an outwardly directed flange, and a crimp ring slidably mounted over the sleeve for crimpable attachement of the fitting to the pipe, in use the outwardly directed flange preventing axial movement of the crimp ring along the pipe.

Abstract: A pipe junction device is disclosed for mounting on an exterior surface of a resilient pipe, such as polyethylene pipe. The pipe junction device includes a generally cylindrical sleeve member having an inner surface including at least one barb, preferably two, projecting inwardly and extending circumferentially around the inner surface. The inner diameter of the sleeve at the barbs is less than a diameter of the exterior surface of said pipe in the uncompressed state. The sleeve slidably receives the pipe wherein the resilient properties of the pipe expand the exterior surface of the pipe in the regions adjacent the region at the barbs to define diameters greater than the diameter of the pipe at the region at the barbs to restrict sliding movement of the sleeve member with respect to the pipe to securely mounting the sleeve to the pipe. An intermediate trough surface portion is disposed between two barbs having multiple levels.

Abstract: A pipe coupling member comprising a collar member, flanges disposed on the collar member for connecting the collar member a support member, the collar member and the support member being adapted cooperatively to substantially encircle a first pipe member, lugs disposed on the collar member for connecting the collar member to a collar assembly substantially encircling a second pipe member, and elongated protrusions extending inwardly from an inside surface of the collar member and adapted to engage an external surface of the first pipe member.

Abstract: A hose construction, coupling therefor and methods of making the same are provided, the hose construction comprising a tubular hose and a coupling secured to one end of the tubular hose, the inner peripheral surface of the tubular hose comprising an inner corrugated hose made of polymeric material and having inwardly convex projections with recesses therebetween and extending from one end of the tubular hose to the other end thereof, the coupling having an insert disposed in the one end of the tubular hose and being radially outwardly expanded into sealing relation with the inner corrugated hose, the insert having an outer peripheral surface defined by a plurality of outwardly convex projections with recesses therebetween, the projections of the insert being respectively received in the recesses of the inner hose and the projections of the inner hose being respectively received in the recesses of the insert whereby the interior of the tubular hose is substantially sealed to the interior of the coupling.

Abstract: A high pressure coupling for hose-like objects in which the nipple structure includes a main portion, a connecting nipple portion extending from the main portion in one direction and a nipple portion extending from the main portion in the opposite direction. A sleeve-like member made from tubular stock is adapted to be securely connected to the nipple structure by crimping, flanging or the like. The nipple portion includes outwardly projecting, rounded-off ribs cooperating with rounded-off grooves in the sleeve-like member so that the hose inserted between the nipple portion and the sleeve-like member is held securely in position after the nipple portion is internally expanded with subsequent reduction of the cylindrical surface of the sleeve-like member. Both the nipple structure as well as the sleeve-like member are made from appropriate stock machined accurately to the required dimensions.

Abstract: An improved assembly, composed of a hard member and a soft tube fitted onto the hard member, for medical uses is formed with a plurality of projections on the side wall of a flange of the hard member. The projections project toward the soft tube side to firmly hold the foremost end part of the soft tube between the projections and a fitting portion of the hard member in a clamped state when the soft tube is fitted onto a fitting portion of the hard member. The foremost end surface of the soft tube may slantwise be cut to define a certain angle relative to the center axis of the assembly such that the foremost end part of the soft tube comes in tight contact with the side wall of the flange when the soft tube is fitted onto the fitting portion of the hard member. The soft tube may be formed with a plurality of cutouts which are arranged along the periphery of the foremost end surface of the soft tube in a spaced relationship.

Abstract: A fitting is described for connecting an elastic hose (152) to a system through which a fluid is transmitted. The fitting, based on common barbed fittings, has an angled conical surface (8) which forms a smoothly curved line as the boundary between the surface and the base of the barb. As an integral way to resist rotation of hose (152), which engages hose (152) on its inner surface, one emboidment of the present device is designed with ribs (6) on conical surface (8), while another embodiment maintains such features (designated as 125) on stem (11) of the fitting. The anti-rotation feature is designed in such a way as to minimize any tendency of the anti-rotating feature to diminish the sealing properties of barb (2 or 121). Such a goal naturally is accomplished through physical parameters of the ribbed protrusions, such as height, shape, and length.

Abstract: A metallic hose coupling assembly provides an improved coupling insert for flexible elastomeric hose. The insert contains a series of external barbs defined by repeating asymmetrical axially inversely oriented pairs of frustoconical segments spaced apart by and contiguous with cylindrical segments positioned therebetween. Each mated pair of frustoconical segments interfaces with a cylindrical segment in a manner which defines rounded interface edges having radii which fall within a range of 15 to 25 thousandths of an inch. The latter configuration of barb provides an effective means of preventing fracture of elastomer hose ends when subjected to relatively high pressure hydraulic applications.

Abstract: A conduit connection fitting includes a core member having an axial bore therethrough and two or more spigot portions, and a sleeve member encasing a central part of the core member. The spigot portions extend beyond the ends of the sleeve member which may be constructed in two hinged halves, preferably of a moulded plastics material. The sleeve member is stepped adjacent each spigot portion to provide an annular rebate to receive a swagable collar. A conduit is combined with the fitting by swaging the collar to the conduit which fixes the collar and the conduit to the spigot portion.A method of assembling such a connection fitting, the sleeve is positioned about the central part of the core member, such that the spigot portions extend beyond the ends of the sleeve. An annular slot is formed around the spigot by putting a collar around the spigot, which collar is supported by the rebate. The conduits to be connected are positioned in eah slot, and the collars are then swaged.

Abstract: A disconnectable device for making a sealed connection quickly between a smooth and rigid tube and a flexible hose which is engaged over the rigid tube, the diameter of the tube being greater than the inside diameter of the hose. A rigid ring preferably made of metal or of a semi-rigid plastic, is disposed coaxially around the hose, the ring having an inside shoulder constituting an axial abutment for the outside surface of the hose, the abutment sufficing on its own, by virtue of the wall of the hose being pinched thereagainst, to urge together the sole pair of complementary sealing surfaces of the device, one on the tube and the other on the inside surface of the hose. Complementary axial fastening means are connected respectively to the ring and to the tube.

Abstract: A hose construction, coupling therefor and methods of making the same are provided, the hose construction comprising a tubular hose and a coupling secured to one end of the tubular hose, the inner peripheral surface of the tubular hose comprising an inner corrugated hose made of polymeric material and having inwardly convex projections with recesses therebetween and extending from one end of the tubular hose to the other end thereof, the coupling having an insert disposed in the one end of the tubular hose and being radially outwardly expanded into sealing relation with the inner corrugated hose, the insert having an outer peripheral surface defined by a plurality of outwardly convex projections with recesses therebetween, the projections of the insert being respectively received in the recesses of the inner hose and the projections of the inner hose being respectively in the recesses of the insert whereby the interior of the tubular hose is substantially sealed to the interior of the coupling.

Abstract: A fitting is described for connecting an elastic hose (152) to a system through which a fluid is transmitted. The fitting, based on common barbed fittings, has a non-circular or angled conical surface which forms a smoothly curved line as the boundary between the conically-shaped surface and the base of the barb. This serves as an integral way to resist rotation of hose (152), which engages hose (152) on its inner surface. The anti-rotation feature is designed in such a way as to minimize any tendency of the anti-rotating feature to diminish the sealing properties of the barb.

Abstract: A hose construction, coupling therefor and methods of making the same are provided, the hose construction comprising a tubular hose and a coupling secured to one end of the tubular hose, the inner peripheral surface of the tubular hose comprising an inner corrugated hose made of polymeric material and having inwardly convex projections with recesses therebetween and extending from one end of the tubular hose to the other end thereof, the coupling having an insert disposed in the one end of the tubular hose and being radially outwardly expanded into sealing relation with the inner corrugated hose, the insert having an outer peripheral surface defined by a plurality of outwardly convex projections with recesses therebetween, the projections of the insert being respectively received in the recesses of the inner hose and the projections of the inner hose being respectively received in the recesses of the insert whereby the interior of the tubular hose is substantially sealed to the interior of the coupling.

Abstract: An adaptor is provided with a threaded end for union with a garden hose, or the like, and a conically enlarged opposite end configured to fit about a wide variety of spigots and pipe ends. A worm gear clamp tightened about the adaptor squeezes annular ribs on the interior of the conical end into sealed engagement around a faucet spout or pipe. The conical end of the adaptor includes exterior annular ridges which position and retain an adjustable band of the clamp in alignment with an interior annular rib so that the action of the clamp is focused thereupon for an improved seal. The adaptor includes an internal reinforcement web or mesh to prevent water pressure-induced swelling of the adaptor.

Abstract: An air flow conduit system is presented for air flow communication between an air filter mechanism and an engine intake manifold. The conduit system comprises first, second and third substantially rigid conduit members. Engagement between conduit members is provided by a rib system on a narrow end of a conduit member being received within a broad end of a next adjacent conduit member. Sealing engagement occurs by an elastomeric seal member positioned between the ribs and an end of a conduit member within which the ribs are received. A preferred rib arrangement is provided, to insure a flexible, multi-point, seal system.

Abstract: A kink resistant flexible plastic or rubber hose for spraying water is provided having a plurality of functions including resistance to hose kinking, water delivery through the hose when kinked and equalization of water pressure on both sides of the kink causing the hose to snap open. The hose is adapted for coupling to a pressurized water supply for delivery of water through the hose and a spraying device is coupled to the other end to provide sufficient back pressure for equalization and opening of the kinked hose during delivery of a pressurized stream of water. The hose is especially suited for use as a garden hose and for other water delivery purposes in boat, camper, car, patio, potable and other environments.

Abstract: A hose fitting for connecting a hydraulic hose to a hydraulic system including an axially inner reduced diameter bore portion and an axially outer enlarged diameter bore portion formed with an inner circumferential groove, comprising: a cylindrical member axially slidable within the enlarged diameter bore portion and having a radial flange portion and an axial tubular portion extending axially outwardly from the radial flange portion; a collet having an outer surface; a sleeve arranged between the cylindrical member and the collet and having an inner inclined surface engageable with the outer surface of the collet, the collet being radially inwardly constrictible when the sleeve is moving axially outwardly, the hydraulic hose being crimped by axial outward movement of the sleeve; and a stop member received in the circumferential groove and adapted to limit axial outward movement of the sleeve and collet.

Abstract: A clamp for securing a flexible watering tube to a water pipe associated with a watering system for poultry and/or small animals, the clamp including a generally U-shaped saddle which embraces the exterior of a water pipe, a tubular stem projecting in a direction away from a convex outer surface of the saddle, a passage in the tubular stem, a passage of legs in diametrically opposite spaced relationship to each other, the tubular stem being located between the two legs and defining therewith a pair of gaps, the legs having projections directed toward projections of the tubular stem, and the latter projections bite into the watering tube when an end portion thereof is inserted into the gaps.

Abstract: A coupling assembly for hoses, fabricated of plastic and comprising one-piece male and multi-piece snap together female coupling sections. The male section includes an externally threaded fitting and an integral hub adapted to fit over the end of a hose section, the hub having internal circumferential ribs or barbs. A ferrule inserted into the hose expands the hose wall into engagement with the barbs for securing the section to the hose. The female section includes an annular collar likewise fitted over and secured to the end of a hose section. An annular flange is formed on the collar, and an internally threaded connector is provided, including an inwardly turned annular lip adapted to snap over and engage behind the flange for rotatably mounting the connector on the collar. The barbs are specially configured to bite into the hose material and resist separation of the coupling section from the hose in response to axial forces tending to pull them apart.

Abstract: A connector for joining the ends of flexible hoses comprising a generally cylindrical body tapering from a central section to a smaller diameter cylindrical section extending to an annular end section. The tapered section and the end section comprise circular barb rings having frustonconical sections and sharp edges. Each section is in turn comprised of several annular barb rings each having a frustoconical outer face and sharp edges. The connector is particularly suited for applications where longitudinal and lateral forces on the tube must be tolerated, as well as variations in tube diameter.

Abstract: A hose with connector end fittings for carrying pressurized fluid having longitudinally displaced internal ribs. These ribs run along inside walls of the hose to prevent flow termination due to kinking or compression.

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: An air flow conduit system is presented for air flow communication between an air filter mechanism and an engine intake manifold. The conduit system comprises first, second and third substantially rigid conduit members. Engagement between conduit members is provided by means of a rib system on a narrow end of a conduit member being received within a broad end of a next adjacent conduit member. Sealing engagement occurs by means of an elastomeric seal member positioned between the ribs and an end of a conduit member within which the ribs are received. A preferred rib arrangement is provided, to insure a flexible, multi-point, seal system.

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 connector for connecting a tube such as a coil tubing, or the like, to well tools, pipe, or another tube. The connector will withstand high pressures and is capable of transmitting high tensile and torque loads, and can be applied to tubes by crimping through use of conventional swaging devices.

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 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 fitting for convoluted tetrafluoroethylene hose wherein all of the fitting components are reusable. The fitting includes a tubular nipple inserted into the end of the convoluted hose, and the outer nipple end includes conduit attachment structure. Ridges and serrations defined on the nipple within the hose aid sealing, and a segmented socket of at least three segments interconnected by bolts compress the hose on the nipple. The fitting utilizes conventional cap screws, and permits field assembly and disassembly without special apparatus, and the configuration of the fitting produces a concise low profile.

Abstract: The invention relates to a stub support for connecting and supporting a hose connection wherein the stub has a rounded cross-section and is in configuration with peaks and valleys with steep tapering flanks facing the connection side of the stub and long tapering flanks facing the opposite direction.

Abstract: A fitting assembly for a hose comprising a nipple having a plurality of spaced separate annular barbs thereon adapted to dig into the internal wall of a hose and threads remote from said barbs for coupling the nipple to a socket. A socket is provided which includes internal threads for threading engagement to the threads on said nipple and spaced internal annular teeth adapted to bite or dig into the outer wall of a hose thereby crushing and clamping a hose between the barbs and teeth and filling the space between the nipple and socket adjacent the barbs and teeth when the socket is threaded to said nipple. In this manner, the socket is retained to the nipple separate from the seal provided between the nipple, socket and hose and oil cannot leak past the barbs and teeth.

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 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 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: A multi-size expansible pneumatic plug device for sealing the interior of a pipeline section. The expansible plug device has interchangeable front and rear circular rigid support members for supporting the remaining elements of the device and each rigid support member has a generally flat end portion and a body portion having parallelly disposed circumferential ridges to form first and second grooved portions. The circumferential ridges have top surfaces of an equal predetermined inclined slope. At least one of the rigid support members additionally has an air inlet means. An exteriorly smooth and interiorly corded elastomeric sleeve member is provided for expansion to seal against the interior wall of a pipeline section. The sleeve member has interiorly disposed parallel circumferential rings of a predetermined spacing inward its ends. A pair of strapping clamp members hold the sleeve member rings matingly between the parallel ridges and in the grooved portions of each rigid support member during assembly.

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 hose is secured to a fitting using elongated strips and band clamps in a conventional manner so as to prevent relative longitudinal movement between the flexible hose and the elongated strips. One end portion of each of the elongated strips is bent back so as to be contiguous to the next succeeding portion of the elongated strip so as to form a shoulder and a recess is formed in the fitting. The bent back portions are seated in the recess and retained therein by a band clamp acting on the next succeeding portion so that relative longitudinal movement between the elongated strip and the fitting is prevented by an abutting relationship between the shoulder of the bent back portion and a shoulder of the recess.

Abstract: An end fitting for rubber steam hoses with metal liners of interlocking construction comprises a stem that has zig-zag serrations formed on an intermediate portion of its outer surface for contacting and retaining the inside of a rubber hose, and has rib-type right hand spirals formed on an inner end portion of its outer surface so that a metal liner of interlocking construction is adapted to be screwed onto the spirals for retention of the metal liner from being pulled off the ste. on the stem and preventing the metal liner from being pulled off the stem. A clamp is provided that clamps the rubber hose against the zig-zag serrations to seal the end fitting against the escape of steam, and clamps the rubber hose against the metal liner and the metal liner against the spirals and the inner end portion of the stem outer surface to provide added retention of the metal liner from being pulled off the stem.

Abstract: A connector sealingly engageable within the end of a flexible tubing or hose carrying a pressurized fluid. The connector is a rigid tubular body having peripheral gripping barbs. The outer, tapered end of the connector is fitted with an O-ring sealing the tubing over the connector. The end portion of the tubing surrounding the barbs is preferably vented to the outside.

Abstract: A connector for joining the ends of flexible hoses comprising a one-piece moldable plastic body of light weight construction with hose engaging barbs at each end and supporting ribs in the midspan between the end barbs for sustaining the wall of the body against internal pressure, the one-piece body being free of the requirement to seal or sonically weld parts in final assembly.

Abstract: A coupling and method of coupling thin-walled/tubing and the like includes an inner member and an outer member in the form of a sleeve or band surrounding the inner member with the tubing therebetween. The inner member is provided with a pair of tubing grooves and a seal receiving groove between the two tubing grooves or at least between one groove and the tube receiving end of the coupling. By means of annular ridges, the tubing is forced into the tubing grooves, and by means of an annular ridge the tubing is pressed tightly against the seal in the seal receiving groove, thus forming a fluid-tight coupling member.

Abstract: A wire hose clamp has barbs extending from at least one of the encircling wires forming a part of the hose clamp. The barbs extend in the direction of rotation in which the clamp is urged by the application of a tool to tighten the clamp, and may be inclined to the plane containing the axis of the wire.

Abstract: The invention pertains to a protective and decorative cap for the ends of hose lines, particularly for use with a worm gear type hose clamp. The cap includes a slot wherein the clamp enters the cap by axial displacement on the hose, and internally, the cap includes an annular hose cover retaining shoulder confining the hose cover against unraveling.

Abstract: The improved fluid conduit assembly of the present invention comprises a conduit plug having an expanded diameter portion and/or narrow portion of reduced diameter, with a fluid passageway extending the length of the plug. The assembly also includes a flexible, resilient, fluid conduit, such as a water hose or drain unclogger having an open end within which the plug is disposed, and a conduit connector connected to the open conduit end by a tubular sleeve disposed over the open conduit end and compressing the conduit end in against the reduced diameter portion of the plug in liquid sealing engagement therewith. In connecting the connector to the conduit, the sleeve is first slid into place and then reduced in diameter, as by crimping, to hold it firmly to the conduit. The resilient nature of the conduit allows it to assume the contour of the outer surface of the plug during the sleeve reducing step.