Abstract: In connection with an arrangement for fastening a corrugated pipe (11) on an essentially hollow-cylindrical connector (12), at least one spring leg (15), which extends at a radial distance from and in a longitudinal direction to the connector (11) and has a retaining lug (18) radially projecting toward the latter, is formed on the connector (12), and an annularly-shaped clamping element (20) is placed on the outside around the corrugated pipe (11) pushed onto the connector (12), which generates a radial clamping force directed toward the corrugated pipe (11) on the at least one spring leg (15), for providing a dependable and simple connection technique (FIG. 2).

Abstract: An improved tubing adapter or coupling apparatus, and combination of same with other fittings, is characterized by an adapter member having a first end including at least one exterior barb for engagement with tubing and a sleeve member operatively positioned around the adapter. In some systems, the tubing or hose may include a fitting at its other extremity, such as a hose end, an ell, or another coupling. The sleeve member of the coupling apparatus preferably includes one or more view ports. The ports can enable the user to visually confirm the tubing has been properly and completely assembled onto the adapter member, and, following initial assembly, to visually ascertain the position of the tubing on the adapter. The apparatus also preferably includes corresponding engagement detents on the adapter and sleeve member, for initial engagement of the retaining member with the adapter member prior to assembly with tubing.

Abstract: A connector device for elastomeric conduits includes a connector having a mechanism to allow attachment to a device to be connected to the conduit. The connector includes a frusto-conical barb leading to a shoulder separated by a necked in region. A mating annular clamp includes an inner bore having surfaces that mate with the shoulder and an inwardly projecting annular ring that traps a conduit between the clamp and the neck and barb of the connector. The connector may be mirrored with a like connector to provide a mechanism to attach two conduits rather than a device.

Abstract: A coupling for use with conduits (10) comprise a bi-conical fitting (20) which is inserted into the conduit end, a frusto-conical locking sleeve (22) which is located about the rearward end of the fitting (20) and compressed about the outer wall of the conduit (10).

Abstract: The end fitting of a flexible flowline is provided with a mechanical clamp that secures the end fitting to the flowline while isolating the sealing area between the end fitting and the flowline from tension forces exerted on the flowline body. The pressure seal between the end fitting and the flowline is disposed behind the mechanical clamp so that the seal area of the flowline remains unaffected by flowline tension forces. The flowline is connected to the end fitting with a tubular assembly sleeve that is concentrically disposed between layers of the flow conduit adjacent the conduit end. During the initial assembly of the end fitting to the flowline, collet fingers in the assembly sleeve are snapped behind a receiving shoulder formed internally of the end fitting. The assembly sleeve may be welded to the flowline end before the sleeve is inserted into the end fitting.

Abstract: A connector for a composite pipe includes a male conical member to be inserted between inner and outer layers of the pipe. The outer layers have oppositely wound composite strips which are overlapped along the conical surface. The ends of the strips are braided and a cup located over the conical surface. A filler is injected between the cup and conical member to fill the voids formed between the overlapping strips.

Abstract: A tubular sleeve has a first end inserted between concentric inner and outer layers of a flexible flowline. The tubular sleeve is welded to the inner sleeve. The tubular sleeve has serrated outer surfaces for cutting into the outer layer of the flexible flowline, or alternatively, has saw tooth edges at its one end for cutting into the outer layer of the flexible flowline. The outer end of the tubular sleeve is fixedly attached to the interior of a cup-shaped end piece, either by a snap coupling or by a threaded connection.

Abstract: The present invention relates to a swivelable connector 10 for plain end flexible conduit 12 which includes a tubular conduit 22 having an annular projection 28 disposed a predetermined distance from a first end thereof, a sealing element 70 and a rotatable retainer 48 disposed within the axial bore of the plain end flexible conduit and a retainer element 34 positioned over the outer surface of the flexible conduit 12 which secures the flexible conduit between the rotatably retainer and the retainer elements and provides a relative rotation between the flexible conduit 12 and conduit 22.

Abstract: A hose coupling for use with flexible hose comprises a biconical fitting which is inserted into a hose end and a frusto-conical locking sleeve located about the hose portion which grips the rearward conical section of the fitting. Sealing arrangements for specific embodiments of hose are disclosed. The double included angle of the conical portion of the sleeve and fitting, which engages the hose, is between one degree but less than ten degrees.

Abstract: A hose coupling for use with flexible hose comprises a biconical fitting which is inserted into a hose end and a frusto-conical locking sleeve located about the hose portion which grips the rearward conical section of the fitting. Sealing arrangements for specific embodiments of hose are disclosed. The double included angle of the conical portion of the sleeve and fitting, which engages the hose, is between one degree but less than ten degrees.

Abstract: A coupling for connection to an end of a hose to allow fluid to pass therethrough. The coupling comprises a tapered end inserted into the end of the hose and a tapered collar fitted on the outside of the hose. Once assembled, the collar provides uniform compression of the hose about the tapered end thereby preventing detachment or leakage. The coupling is designed such that it can be field installed and uninstalled without the need for specialized installation tools.

Abstract: A hose coupling for use with flexible hose comprises a biconical fitting which is inserted into a hose end and a frusto-conical locking sleeve located about the hose portion which grips the rearward conical section of the fitting. Sealing arrangements for specific embodiments of hose are disclosed. The double included angle of the conical portion of the sleeve and fitting, which engages the hose, is between one degree but less than ten degrees.

Abstract: A hose coupling for use with flexible hose comprises a biconical fitting which is inserted into a hose end and a frusto-conical locking sleeve located about the hose portion which grips the rearward conical section of the fitting. Sealing arrangements for specific embodiments of hose are disclosed. The double included angle of the conical portion of the sleeve and fitting, which engages the hose, is between one degree but less than ten degrees.

Abstract: A quick connect tube coupling is configured for use with unstepped bores in conventional fittings, valves, manifolds and similar devices. The coupling includes a tubular tube support which has structure thereon for positively coupling with a brass sleeve which is utilized to retain the coupling in the bore. The tubular tube support further includes a stepped portion which locates a primary O-ring seal for sealing directly with a tube connected by the coupling and a secondary O-ring seal which seals with the wall of the bore. In accordance with a preferred embodiment, the tube support is molded of plastic and is polygonal in cross-section.

Abstract: A hose fitting for permanent attachment to a flexible hose such as a garden hose. The fitting includes a tubular member having helical barbs or threads on an outer surface portion thereof for allowing the tubular member to be firmly held within an open end of the hose and to further form helical deformations in the hose. The fitting further includes a ferrule having similar helical barbs or threads on an inner surface thereof for allowing the ferrule to be threaded over the hose end having the helical deformations formed by the tubular member inserted therein. The tubular member and the ferrule include mating ratchet teeth which lock together when the ferrule is threaded over the deformations in the hose end such that the fitting is permanently attached to the hose. The tubular member includes a coupling portion on its outer end for allowing the hose fitting to be attached to another fitting or a fluid device such as a faucet or lawn sprinkler.

Abstract: A connector for cylindrical plastic tubes has a metallic inner sleeve with an outer diameter that is greater than in inner diameter of the plastic tubes to be connected. The inner sleeve has a free end and a securing flange positioned opposite the free end. A metallic sliding sleeve for being slipped onto a section of the plastic tube having inserted therein the inner sleeve is provided. The inner sleeve has an outer surface with at least one circumferential rib of a substantially rectangular cross-section. The sliding sleeve has a leading end and a rearward end in the direction of sliding onto the section. The sliding sleeve has an inner surface that beginning at the leading end and ending at the rearward end, has sequentially: a first conically narrowing zone, a second conically narrowing zone, a cylindrical zone, a third conically narrowing zone, and a cylindrical zone.

Abstract: A hose coupling for use with flexible hose comprises a biconical fitting which is inserted into a hose end and a frusto-conical locking sleeve located about the hose portion which grips the rearward conical section of the fitting. Sealing arrangements for specific embodiments of hose are disclosed. The double included angle of the conical portion of the sleeve and fitting, which engages the hose, is between one degree but less than ten degrees.

Abstract: A hose coupling for use with flexible hose comprises a biconical fitting which is inserted into a hose end and a frusto-conical locking sleeve located about the hose portion which grips the rearward conical section of the fitting. Sealing arrangements for specific embodiments of hose are disclosed. The double included angle of the conical portion of the sleeve and fitting, which engages the hose, is between one degree but less than ten degrees.

Abstract: A connection system for a deformable conduit with a support portion which is inserted within an end of the conduit. The support portion has a hollow interior and an external contour with first and second surfaces. First and second portions of the deformable conduit are outwardly displaced by the first and second surface. A clamp assembly having an end piece and a sliding ring engage the first and second portions of the displaced conduit, respectively. A pressing portion is positioned over the clamp assembly and pinches the conduit against the support portion.

Abstract: A coupling device for establishing a detachable connection for a tube system is to be improved so that while simple detachability of the pipe socket and tube is guaranteed, the pulling-off force is equivalent to firm clamping. To accomplish the task, a sleeve-like coupling box 7 is provided, which surrounds the tube 5 in a clamp-like manner and, for fixation on the pipe socket 2, it has, on the inside, a circumferential notch 8, into which two oppositely arranged projecting parts 4 of the pipe socket 2 snap. The coupling box 7 expands under the effect of a force acting laterally, so that the projecting parts 4 will disengage from the notch 8.

Abstract: In a pipe connection, in particular for plastic pipes and hoses (2, 9), having a support portion (6) disposed in the interior of the pipe to be connected, and a clamping means (4, 5, 21, 22) which is provided on the outside of the pipe and which comprises a sealing portion (4) and a pressure-applying portion (5), the sealing portion (4) is made from a yielding material, preferably plastic material, and the pressure-applying portion (5) comprises metal, the pressure-applying portion (5) externally surrounding the sealing portion (4).

Abstract: A tube connection consisting of a nipple structure and a sleeve member in which the nipple structure includes a tube-receiving portion provided, starting from an abutment surface with a substantially cylindrical section and an outwardly flaring clamping surface. The sleeve member is provided with a first internal section of substantially cylindrical shape followed in the direction toward the free end of the tube-receiving portion with an outwardly flaring clamping surface, whereby the internal diameter of the cylindrical section of the sleeve member is only slightly larger than the maximum diameter of the tube-receiving nipple portion. In one embodiment, the nipple structure and sleeve member are provided with complementary locking means to enable locking of the sleeve member in the clamping position by axial movement in the direction of the free end of the tube-receiving nipple portion and subsequent rotation of the sleeve member into predetermined locking position.

Abstract: A hose coupling for use with flexible hose comprises a biconical fitting which is inserted into a hose end and a frusto-conical locking sleeve located about the hose portion which grips the rearward conical section of the fitting. Sealing arrangements for specific embodiments of hose are disclosed. The double included angle of the conical portion of the sleeve and fitting, which engages the hose, is between one degree but less than ten degrees.

Abstract: A connector fitting of the cantilever camming and clamping type having a ferrule secured in the main body bore thereof, the ferrule having an end received in one end of a tubular, usually plastic, member as the tubular member is installed. The ferrule provides radial force backup preventing collapse of the tubular member. It seals with the bore of the main body and with the tubular member. The cap bolt part of the fitting may have a tapered or a straight inner surface arranged to engage the outer wall of the tubular member in gripping relation.

Abstract: A flexible connector is used to connect a source of liquid to a dispenser so that the position of the dispenser may be adjusted or the line leading to a fixed dispenser may be adjusted. A typical use is in connecting underground pipe to a sprinkler head, but the invention may be used in other installations. Examples are to provide a connector for a light-weight, non-kink garden hose; sewer pipe fittings and ABS drain pipe. A very flexible tubing, such as light vinyl tubing, is encased in a tough outer protective tubing, such as convoluted tubing. At either end is a fitting into which the flexible tubing fits. A bushing inside the fitting expands the end of the flexible tubing and thus retains it within the body of the fitting. The end of the protective fitting is received in a counterbore in an end of the fitting. The upper end of the fitting may be attached to a sprinkler head or other device and hence may be shaped with an internal thread, an external thread, or a smooth cylindrical shape for a slip fit.

Abstract: A device for connecting a thin-walled hose (4) pulled into a pipe (2) with a tubular element (6) comprises a sleeve-shaped connector element (8). At one end portion the sleeve-shaped connector element (8) is connectable with the tubular element (6) while the other end portion of the connector element is sealingly connected with the thin-walled hose (4). The sleeve-shaped connector element (8) is connected with the thin-walled hose (4) by means of two annular, concentric sealing elements (14; 16) consisting of highly elastic material between which the wall of the thin-walled hose (4) is positioned.

Abstract: A three-part, re-usable coupling for making a sanitary connection to a flexible hose is disclosed which includes a coupling body of corrosion-resistant material having a central channel for laminar flow. At one end of the central bore, the coupling body is provided with a standard sanitary conduit flange-face. At the other end the coupling body is provided with a notched, substantially cylindrical barb for insertion into the lumen of the flexible hose. An externally threaded section lies between the two ends of the coupling body. A split collar or sleeve which is at least as long as the barb has an externally tapered surface and a cylindrical, internal, threaded surface applies uniform compression to the end-portion of the flexible hose through which the barb is inserted. A nut having an internal taper that matches the external taper of the split collar makes up on the external threads of the coupling body urging the split collar to firmly secure the hose to the barb.

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: An elongated insert has an enlarged central area with wrench faces formed thereon. On one side of the central area, an end of said insert is formed to provide a connector. On an opposite side of the central area, the insert is an elongated pipe having a series of annular barbs formed thereon. An inner split collar fits over and is dog locked to the pipe after it is slipped into the end of a hose. An outer locking collar fits over the split collar, compresses, and secures it in place. Various principles are shown for selecting a degree of locking forces which optimizes and matches the ease of installation vs. the grip that is required.

Abstract: A coupling is provided for joining segments of plastic pipe. The coupling includes a body portion having an inner bore opening to an enlarged outer bore. A metal stiffener tube having a flange at one end is inserted into the bore of the body until the flange contacts an internal stop. An elastomeric gasket having a substantially rectangular cross-sectional area encircles the stiffener. When the coupling is tightened a corner portion of the gasket initially engages a sloped surface in the enlarged outer bore of the body to initially load the gasket for sealing. A rigid washer encircles the stiffener and contacts the outside end of the gasket. A grip ring, comprising a frustoconical radially outer surface, an inner surface with gripping members, a segmented lateral slot, and a resilient lip around one end, encircles the stiffener so that the lip is in contact with the washer.

Abstract: The present invention relates to a pipe joint for connecting a piping comprising a cylindrical body with both ends open and a connecting part to a socket, the socket having a tapered part on the internal circumference and diminishing in diameter toward the open side, one end of the socket attached to the connecting part of the body and the other end of the socket being as the pipe inserting port and, an insert provided to the body in a way to slide freely within a certain range and having a free end facing the pipe inserting port, and a collet placed between the internal circumferential face of the socket and the insert in a way to advance and retreat freely.

Abstract: A pipe joint comprises a cylindrical main body 1 with both ends open, at least one of which is to be a pipe insertion port 10, a slender slidable cylinder 2 coaxially installed in the main body 1 so as to slide therein freely to and fro in a certain range, its free end facing the pipe insertion port 10, and a holding cylinder 3 inserted between the main body 1 and the slidable cylinder 2 in a manner to move freely back and forth. The main body 1 has a taper 11 diminishing toward the pipe insertion port 10 on its inner circumference near the port 10. The holding cylinder 3 has a slit 30 open to the pipe insertion port 10 and its outside diameter is slightly larger than the inside diameter of the pipe insertion port 10. In a state where a pipe is forcibly fitted on the slidable cylinder 2 externally, the holding cylinder 3 moves toward the pipe insertion port 10 along with the pipe being pulled back.

Abstract: A connector for joining the ends of two pipes has a pair of half-sleeves, which fit around the pipe ends to form an inner sleeve. The inner sleeve has a tapered or conical outer surface, against which an outer sleeve presses. The outer sleeve is a single-piece sleeve with a tapered bore, the angle of the taper of which matches the angle of taper of the outer surface of the inner sleeve. The outer sleeve is slid over the inner sleeve and is clamped in intimate contact with the inner sleeve by a nut which is tightened onto a threaded end of the outer sleeve while an annular, inwardly - projecting flange of the nut bears against the ends of the half-sleeves. The surfaces of the half-sleeves are coated with adhesive before being placed around the pipe ends; this adhesive cures while the joint components are clamped together. Preferably each half-sleeve has a central rib at its mid-point, against which the ends of the pipes being joined abut.

Abstract: This invention relates to a novel counter flow tube-manifold heat exchanger which can be installed in a wood or concrete floor and used to heat the floor and the earth space associated with the floor. A heat exchanger for conveying a heat containing fluid material in counter flow pattern comprising a hollow conduit comprised of three hollow elongated resillient fluid conducting tubes which are disposed parallel to and are joined to one another; and a first hollow elongated manifold with ports therein; and a second hollow elongated manifold, with ports therein adapted for connection with the ends of the tubes, the first ends of two of the three tubes being connected to the ports of the first manifold and the opposite ends of the same two tubes being connected to ports of the second manifolds, and the first end of the third tube adjacent the first ends of the two tubes being connected to a port of the second manifold, while the opposite end of the third tube is connected to a port of the first manifold.

Abstract: A pass-through tube for use in conveying intravenous fluid to a patient in a pressurized chamber, the tube including a tubular body having an outer surface shaped and sized to sealably mate with the interior surface of a connector passing through the wall of a pressurized chamber, a first end having a first generally cylindrical surface adapted to sealably engage a similarly shaped surface of a mating first connector and first locking members for locking with mating locking members on the first connector, a second end having a second generally cylindrical surface adapted to sealably engage a similarly shaped surface of a mating second connector and second locking members for locking with mating locking members on the second connector. Also disclosed is a kit including a pass-through tube, a flexible internal tube, and a valve connected to the external end for connection to an intravenous supply line.

Abstract: A graduated friction anchor ring for a coupling mounted on an end of a composite pipe having a pipe core and an aramid fiber layer, the aramid fiber layer possessing poor crush resistance properties and the graduated friction anchor ring being integrally positioned within the coupling to securely and delicately anchor the aramid fiber layer in conjunction with a wedge ring. The graduated friction anchor ring comprises an anchor ring, having outer and inner surfaces and an end portion connecting the surfaces, the inner surface being inclined with respect to the surface of the wedge ring, the aramid fiber layer being positioned intermediate the anchor ring and the pipe core, the wedge ring being wedged within the pipe core to wedge the aramid fiber layer between the pipe core and the anchor ring to generate graduated compression along the aramid fiber layer in a longitudinal direction.

Abstract: An improved self-tightening fitting and fitting connector for use with soft tubing includes a stem having a flange at one end over which a piece of soft tubing may be pulled, and a sleeve which is slidable over the stem and has an inwardly extending lip with a connect surface thereon.

Abstract: A flexible winding hose coupling apparatus is provided which allows for the rapid coupling of a flexible hose thereinto. The coupling can then be attached to another hose or to a pipe fitting or tap. The coupling has first and second coupling members with the first coupling member having a hollow tapered bore therein and the second coupling member loosely fitting or floating in the bore of the first coupling member. The first coupling member has an annular ledge formed in the bore to act as a stop for the second coupling member and has a plurality of annular barbs formed along the bore walls. The second coupling member is located in the first and has an external taper thereon with a plurality of external annular barbs therearound so that sliding a flexible hose over the second coupling member expands the end of the hose along the taper and over the barbs, driving the end of the hose towards the inside of the first coupling member bore walls.

Abstract: A hose coupling assembly (10) of the type adapted to secure a hose (12) to a fitting. The assembly (10) includes a hose (12). A coupling member (16) is provided which includes an insert portion (18) for disposition within an opening (14) in the hose (12). An inner collar (28) is positioned about the exterior of the hose (12) and radially spaced from the insert portion (18) of the coupling member (16). An outer collar (38) is positioned over the inner collar (28) to provide an inwardly directed force thereto. The inner collar (28) has a plurality of slots (34) therein. The slots (34) compress in response to the inwardly directed force from the outer collar (38) to reduce the inner diameter of the inner collar (28) to thereby provide radial compression completely about the hose (12). The compression prevents removal of the coupling member (16) from the hose (12).

Abstract: A hose coupling for use with flexible hose comprises a biconical fitting which is inserted into a hose end and a frusto-conical locking sleeve located about the hose portion which grips the rearward conical section of the fitting. Sealing arrangements for specific embodiments of hose are disclosed.The double included angle of the conical portion of the sleeve and fitting, which engages the hose, is between one degree but less than ten degrees.

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: An improved self-tightening fitting and fitting connector for use with soft tubing includes a stem having a flange at one end over which a piece of soft tubing may be pulled, and a sleeve which is slidable over the stem and has an inwardly extending lip with a contact surface thereon. A releasable ratchet mechanism prevents movement of the sleeve away from the flange, so that tubing can be secured tightly between the contact surface of the sleeve and the flange. When tension is applied to the tubing, the lip portion catches on the tubing, urging the contact surface tighter against the flange, preventing the tubing from creeping through the clamping couple formed by the sleeve and flange. When it is desired to disconnect the tubing, the ratchet mechanism can be released. The method of use is also disclosed.

Abstract: A T-shaped connector for use in automotive radiator cooling systems, in which each nipple is radially enlarged to form a substantially frusto-conical obverse taper, an apex, and a substantially frusto-conical reverse taper having one or more shouldered steps cut into it. The height of the apex is determined as a function of the elastic properties of the rubber hose to be connected to the coupling, a rubber hose is slid onto and over the radially enlarged portion, and a substantially frusto-conical ring is seated onto that portion of the hose fitting over the reverse taper of the nipple.

Abstract: A high pressure hose coupling having a body portion including a cylindrical cavity for acceptance of a piston and means for attachment of an outer ferrule having a conical interior surface; a free sliding inner nipple which carries on its outer periphery an annular piston operative within said cylindrical body cavity; a plurality of wedges; a wedge driving means operating to produce uniform movement of said nipple and wedges into said conical ferrule.

Abstract: Coupling apparatus for forming a fluid tight connection with a hose. The coupling apparatus circumferentially sealingly engages a first section in the end portion of a hose when the hose end is pushed into contact with the apparatus. When the hose end is, after being initially pushed into sealing engagement with the coupling apparatus, pulled in a direction away from the apparatus, the apparatus circumferentially sealingly engages a second section of the end portion of the hose.

Abstract: A hose coupler particularly suitable for spiral wire reinforced hoses having either one or both of their outside and inside surfaces embossed by the spiral reinforcement of metal or synthetic resin material provided either externally wound about the outside or internally imbedded between the two pliers along the entire hose length, is disclosed, which has a cylindrical sleeve for enclosing the engaged end of the hose about the nipple. This sleeve is itself encased within the back nut, when it is engaged with the main body. An annular projection is formed in the inside of the sleeve at its one end, which is provided to be pressed against the outside of the hose over a longitudinal range that is not less than the pitch of the reinforcement helix in the hose. A tubular seal is provided wound about the outside of the nipple at its forward end. The tubular seal is formed to have its longitudinal length to match the dimension of the contacted surface of the projection.

Abstract: The invention relates to a tube coupling for connecting a tube portion of synthetic resin to another conduit element with resistance to tensile stress in such a way that said tube portion is firmly held to resist high tensile forces due to shrinkage of the tube conduits or other high tensile forces on the one hand, whereas said tube portion is clamped within the coupling in such a way that the synthetic resin thereof is not overloaded by clamping forces. This is achieved by holding the tube portion of synthetic resin by a combination of a grip ring and an elastic sealing ring.

Abstract: A wire gripping clamp has a rubber inner tube wedged to the ends of a rigid outer tube by a set of rings, one ring at each tube end. The space between the tubes is sealed by the rings and forms a chamber, which when pressurized, compresses the inner tube wedging the rings against it. The compressed inner tube grasps an insulated wire passing therethrough without damage to the wire. The rings serve as a clamp in response to tension on the inner tube and as a guide for the wire when the wire is displaced through the device for precluding damage to the inner tube and to the wire during that relative displacement.

Abstract: A connector for engaging non-metallic liquid-tight conduit includes an inner ferrule having a cylindrical portion with an annular rib dimensioned to be inserted into the end of the conduit, and a surrounding sleeve having a conical outer surface and axially extending slots. The sleeve surrounds the conduit and is engaged by a compression nut which radially inwardly decreases the radius of the sleeve, engaging the conduit between the smaller compressed end thereof and the annular rib on the ferrule. The connector also includes a body with threads to engage the nut and the ferrule and body include means for limiting rotational motion of the ferrule.

Abstract: A reusable hose fitting for connecting a hose to an accessory including a nipple fixedly connected at one end to the accessory and having a sleeve removably inserted into the open end of the hose. A removable segmented wedge and a socket subassembly surrounds the hose as is connected to the nipple by axial fasteners, the tightening of which inwardly shifts the segmented wedge to compressively capture the hose. The subassembly is removable for replacement of a damaged hose with removal of the nipple.