Abstract: Two rigid cylindrical sleeves are interconnected by a spring bellows. Each cylindrical sleeve carries a flange section. Such flange section is provided with joint plates. The joint plates are a forklike interconnecting structure. A rolling contact wedge member is located in a first number of joint plates and a rolling contact prism member is located in a second number of joint plates. This provides for a hinge-like joint of a rolling contact rocker structure having a line contact only of the parts moving relative to each other. Because no friction exists in such hinge joint, a cold welding is not possible. Accordingly, no additional stresses due to such cold welding will be able to exist in the pipe conduit sections interconnected by this apparatus.

Abstract: This suction arm for gaseous fluids comprises a tubular articulated conduit consisting of at least one flexible sleeve (5) disposed between two rigid tubes (8). These tubes (8) are interconnected at either end of the flexible intermediate sleeve (5) by mechanical holding means (9) comprising each at least one pair of first and second members (10a, 10b) pivotally interconnected centrally of the flexible sleeve and rigidly assembled in side by side relationship by distance-pieces (15) under the control of a spiral return spring (13) and detent-positioning means (16, 17, 18), whereby the two rigid tubes (8, 8) are constantly urged to their relative angular position matching that of the ends of the intermediate flexible sleeve (5).

Abstract: A clamp for control of separation of couplers in intravenous feeding and monitoring systems that is open along its vertical length to receive and secure various infusion tubing couplers by embracing raised or soft areas of said couplers with its inner horizontal gripping ridges and grooves to prevent axial and radial movements that may cause leaking or separation of friction or needle insert connections.

Abstract: An expansion joint of the bellows type for installation between the end portions of two aligned pipes utilizes two stop members within the bellows being movable relative to one another and each being supported by opposite end portions of the joint for limiting the axial extension of the joint. Each stop member includes a tubular sleeve being fixed at one end to a respective end portion of the joint and a ring at the sleeve end opposite its attached end. When the joint extends axially a predetermined amount, the rings engage one another and prevent any further joint extension.

Abstract: Insulated pipes are generally bared of insulation at their ends in order to make joints, for example welds, between the pipes. A reinsulating method and assembly is provided for the bared joints, wherein a support comprising a coiled member, for example a helical coil, is positioned around the pipe, a recoverable cover recovered into engagement with the support, and thermally insulating material introduced between the cover and the pipe. The invention is suitable for straight, T, and bent joints.

Abstract: A strain relief for the point of attachment of a flexible member to a rigid member, comprising a plurality of woven braided strands. The weaving is close or narrow at the point of attachment and progressively more open or wide along the flexible member as the distance from the point of attachment increases, distributing stress along the length of the flexible member.

Abstract: A weld-on female casing connector is disclosed having an upper threaded section and a lower cylindrical section that is welded to the casing. Located between the two sections is a connecting section that has a downwardly decreasing cross-sectional area until the cross-sectional area approaches the cross-sectional area of an ideal transition section and has a stress in the range of other high stress sections of the connector than an increasing cross-sectional area until the outside diameter of the connecting section is sufficient to provide a downwardly facing elevator shoulder of sufficient area to support the casing on an elevator.

Abstract: A coupling for pipe or the like made up of a plurality of spaced generally hollow cylindrical bodies made of sheet material and each having their adjacent ends bent back on themselves forming a pocket along each edge, an outrigger bar extends through the pocket on one edge of each of the bodies and a short bar extends through the pocket on the outer edge of each body. The short bars are connected to the outrigger by means of bolts and a flexible liner is supported inside each of the bodies forming a gasket for surrounding a pipe extending through the bodies. In the second embodiment a basic difference is that the couplings are made up of clamps or outrigger clamps at two halves rather than in a single band.

Abstract: A thrust rod anchor for utilization in conjunction with a tied form of pipe joint restrainer system. The anchor utilizes spacers which are supported by flanges at their outer extremities and are bolted together over a pipe. A pipe engaging support is provided in conjunction with the outwardly disposed portions of the spacers in a manner wherein a rigid structural support is located adjacent to the surface of the pipe which serves to support and carry symmetrically disposed pipe engaging set screws. Thrust rods are connected to the assembly intermediate outwardly disposed connecting bolts and the set screws. The anchor assemblies of the invention have been shown to provide substantially enhanced anchoring resistance to thrust forces.

Abstract: A flexible spiral spring insert for a hose end segment is disclosed which insert includes an enlarged end portion for retentive engagement with a coupling component on the hose end. The enlarged end portion may be a ring-shaped retainer chamferred about its outer periphery to avoid interference with seating of a nozzle rim with the washer of the coupling assembly. A modified form of the invention discloses an enlarged conical extension formed on one end of the flexible spiral spring insert while a still further modification includes a radially enlarged end coil of the insert with the coil adapted for washer engagement. The washer may be modified to be internally recessed to receive a radially expanded end coil of the spring to confine the spring against axial displacement.

Abstract: A flexible length of pipe is formed from at least two pipe sections joined by a flexible element such as a closed toroidal shell or open convoluted forms.

Abstract: A flexible conductor adapted for use as a "marine riser" in offshore drilling and production operations. The conductor includes a central flexible elastomer portion connected at each end with a rigid tubular portion. Disposed in the elastomer portion are inner and outer reinforcing members for containing the pressure differential across the central portion and for carrying the compressive loads. A plurality of circumferentially spaced longitudinally extending metal wires are disposed in the central portion between the inner and outer reinforcing members for enabling flexing of the central portion while carrying the tension load on the flexible conductor. The longitudinally extending wires are secured to the end portions by threaded retainers for ease of assembly.

Abstract: An irrigation system is provided wherein a conventional central pivot spray-type system is converted into a ground release system through the use of a plurality of flexible hoses that release the water at ground level. A plurality of perforations at the distal end of the hose provide a spray effect without the water evaporation loss associated with conventional spray systems. Braces also prevent the hoses from swinging sideways and becoming entangled.

Abstract: A pliable metallic joint for underwater pipelines laid at great depths, having a bellows-like section of a pliable metal or alloy, which is externally reinforced by a sturdy metal wire coiling positioned in the grooves of said bellows and which is internally reinforced by interlockingly arranged U-shaped rings and an axial undulated circular spring that allow a high degree of deformation and facilitate joining two pipes.

Abstract: An articulated pipe line comprising rigid sections jointed together so as to allow a limited angular movement between adjacent sections, the axis of two successive articulations having different directions and a sealing device ensuring a tight separation between the outside and the inside of the pipe line at the level of the articulation. This device is particularly suitable for immersed pipe lines of large diameter.

Abstract: The axially flexible metal fluid coupling, illustrated by the drawing, consists of a convoluted thin wall tube sealed at each end to suitable fittings. The convoluted tube is very flexible and in itself does not appreciably contribute to the pressure capacity of the coupling. It is only a seal for the fluid and must be supported both radially and axially.

Abstract: A clip and method of using same are provided whereby the angle valve beneath the sink is positively coupled to the flexible connector tube leading to the faucet to prevent the tube from working out of the slip-joint of the angle valve over a period of time.

Abstract: A clamp for preventing separation of a connected subclavian catheter and intravenous tubing has a tube-like member having internal ridges adjacent one end for gripping a resilient bulb portion of the tubing and has a series of radially moveable jaw members on the other end bendable inwardly to grasp the end of a needle head on the catheter. A lock ring positioned about the tube-like member is slideable into engagement with cam members on the jaw members to lock the latter position.

Abstract: The invention is a composite pipe coupling having a corrosion resistant liner which seals pipes to be coupled by utilization of a heat recoverable metallic material and having a pair of complementary heat recoverable metallic tensile rings and an external support structure which supplement the tensile strength of said liner, and of the overall coupling.

Abstract: A pipe part comprising an abutment-edge and a retaining ring being interconnected by means of retaining strips or dumb-bells which dumb-bells or strips will yield under a load without breaking. The pipe part consists of a polyolefin, preferably a polypropylene.

Abstract: The invention is a composite pipe coupling having a corrosion resistant liner which seals pipes to be coupled by the utilization of heat recoverable metallic material and having a complementary external support structure which allows high tensile loading of the coupling.

Abstract: A method and apparatus for forming a non-tensioned multi-conduit line from a plurality of conduits and a central core as the plurality of conduits and central core are pulled longitudinally along the length thereof including the securing of conduits in a non-twisted contacting condition about the central core and oscillating the conduits about the central core prior to securing to alternately rotate the conduits in opposite directions about the central core such that the conduits contact the central core for substantially 360.degree. in each direction without introducing torsional stresses on the conduits prior to the securing thereof to the central core.

Abstract: An antidisconnect device is provided to prevent the inadvertent separation of medical fittings or connectors normally provided on the external end of a patient connected medical device such as an endotracheal or tracheostomy tube. The antidisconnect device basically comprises an annular ring having an internal diameter adapted to slip in close engagement over the normal outside diameter of the medical tubing. When assembled, the medical tubing is forced onto the tapered endotracheal tube connector thus distorting and enlarging the outside diameter of the medical tubing to a diameter larger than the internal diameter of the antidisconnect device. The antidisconnect device can then be moved toward the endotracheal tube tapered connector and can be forcefully held in position against the expanded diameter of the medical tubing. A strap extends from the annular ring to encircle any fitting or connector extending from the medical tubing to the patient and the distal end of the strap is affixed to the annular ring.

Abstract: Apparatus for locating therein a pipe unit comprising:a housing having a chamber adapted to receive the union and a plurality of apertures for communicating with the union andmeans adapted to be removably secured to the housing adjacent a said aperture, the said means being adapted to engage the unionso that the union is secured in the housing when the said removable means is secured to the housing.

Abstract: A coupling assembly particularly for connecting sections of plastic pipe comprises a sleeve and a clamp assembly. The sleeve has internal seals for providing a seal between the sleeve and pipe sections inserted into the sleeve. The clamp assembly comprises two identical clamp members, each generally arcuate in shape, adapted to fit in opposing relationship and formed for connection to each other. The clamp members are each formed with a serrated inner surface to bite into the outer surface of the adjoining pipe section. The coupling assembly may be easily and quickly installed without special tools or equipment and is especially useful for the field repair of damaged pipe sections.

Abstract: An energy absorbing load carrying strut is provided by laterally restraining a malleable column against eccentric loading bending moments. Lateral restraint is provided by a sleeve extending around the column and, in some embodiments, a rod extending through the column. The sleeve and rod extend over the full length of the column and are so secured as to laterally restrain the column against buckling and not be subject to substantial axial loading as the result of axial loading of the column. The restraint thus provided enables the column to maintain its load carrying capacity while being loaded beyond its yield point.

Abstract: A tube made from a rigid material such as PTFE is surrounded by a rigid tubular sheath. The ends of the synthetic material tube are provided with collars which emerge from the rigid sheath, the sheath having on its inner face, adjacent to each collar, a locking member. The locking member forms a substantially annular relief and penetrates a correspondingly shaped groove on the outer surface of the tube of synthetic material.

Abstract: A tubular fiber reinforced composite shaft is formed (as described) which integrally incorporates a metal sleeve or connection at the end thereof. Initially a metal sleeve having circumferentially spaced recesses on the outer periphery thereof is positioned upon a segment of a mandrel. Fibrous material bearing a non-solidified resinous material is applied around the mandrel and around the recesses in the sleeve. Portions of the previously applied fibrous material bearing the non-solidified resinous material are pressed into the recesses. Additional fibrous material bearing the non-solidified resinous material is applied to the previously applied fibrous material. The resinous material next is solidified to form a tubular composite shaft whereby a secure torsion-transmitting connection is made with the sleeve, and the mandrel is removed.

Abstract: A fitment for mounting on a vessel or tank constructed of reinforcing filaments such as glass or other fibers located in a resin matrix. The fitment includes a platform or top wall which is generally planar and has a pair of generally opposing rectilinear sides. The platform is adapted for supplying a fitting for a hose or nozzle which can be removably attached thereto. Two legs depend from the sides of the platform. A pipe also depends from the central portion of the platform. The ends of the pipe and legs are adapted for securement to the wall of a tank or vessel by bonding resin compatible with the resin of the fitment and the tank. The fitment is preferably constructed of layers of glass fiber reinforcing materials.

Abstract: A flexible conduit construction having an inner flexible tubular member and having an outer flexible tubular member telescoped about the inner tubular member with the internal peripheral surface of the outer tubular member being in spaced relation from the other peripheral surface of the inner tubular member throughout the length of the inner tubular member to protect the same, a coiled compression spring being disposed about the inner tubular member in spaced relation therewith and radially engaging the internal peripheral surface of the outer tubular member to hold the internal peripheral surface of the outer tubular member in spaced relation relative to the outer peripheral surface of the inner tubular member even though the tubular members are disposed in various arcuately flexed conditions thereof. The outer tubular member is under axial tension between its opposed ends so as to radially contract and thereby be disposed in radial compression against the coiled compression spring.

Abstract: A fitment for mounting on a vessel or tank constructed of reinforcing filaments such as glass or other fibers located in a resin matrix. The fitment includes a platform or top wall which is generally planar and has a pair of generally opposing rectilinear sides. The platform is adapted for supplying a fitting for a hose or nozzle which can be removably attached thereto. Two legs depend from the sides of the platform. A pipe also depends from the central portion of the platform. The ends of the pipe and legs are adapted for securement to the wall of a tank or vessel by bonding resin compatible with the resin of the fitment and the tank. The fitment is preferably constructed of layers of glass fiber reinforcing materials.

Abstract: An apparatus for preventing separation of coupled fluid conduits in a vascular access system. In one embodiment first and second means are provided for affixing to respective ones of coupled fluid conduits. In a second embodiment first and second means are provided for abutting surfaces of connectors forming a part of and joining the fluid conduits, each surface facing away from the other fluid conduit. In both embodiments, the first and second means are joined such that motion of the first conduit from coupled relation with the second conduit is restrained.

Abstract: The present invention relates to a flexible joint to be inserted between culvert sections. In a culvert joint which consists of anchor members attached to the opposing culvert sections, a flexible member extending between said anchor members and a large number of strengthening members arranged in parallel at the internal and external positions of said flexible member, said strengthening members being classified into one with projections and one with holes to regulate the distance between them; the projections of said member with projections fit into the holes of said member with holes to overlap each other, thereby regulating the distance between them to follow an expansion and contraction or an uneven subsidence of the culvert and therefore, bearing earth pressure sufficiently.

Abstract: Vibration absorbing connector for use in high pressure fluid piping systems such as the refrigerant lines in an automotive air conditioning system incorporates a thin bellows member whose ends are restrained against axial movement by a restraining means such as a plurality of axially extending flexible cables or a braided metal sleeve which surrounds the bellows member. A molded-in-place elastomeric layer fills in the external bellows corrugations to prevent their deformation under load and encapsulates the restraining means. The design permits a 3 inch long bellows having a 0.005" wall thickness to perform as well as a 7 inch long bellows having a 0.020" wall which has a conventional configuration under internal fluid pressures that would collapse the thin wall bellows corrugations in the absence of the elastomeric layer.

Abstract: An exhaust pipe having an axial compensator is provided with means for preventing bending of the axial compensator. This means includes at least one sleeve which is secured to one of the parts of the pipe and a mandrel slidably received by the sleeve and secured to the other part of the pipe, so as to allow axial movement of the parts. Both sleeve and mandrel may be pivotally secured to the parts to allow adjustment in the angle of inclination relative to the axial compensator.

Abstract: A large diameter duct structure is adapted for vertical disposition in an ocean. An elongate tensile core assembly is adapted to be supported at one end, as from a floating platform, and to extend downwardly a desired distance. A plurality of duct wall sections, each of selected length, are alignable in serial order to define a tubular assembly having a diameter substantially greater than that of the core. Support means are engageable with the core at selected locations along the core and with the wall sections. The support means support the wall section substantially concentrically about the core and secure the wall sections from movement relatively along the core. Seals are engageable between the ends of adjacent wall sections disposed about and along the core, and define substantially liquid-tight connections between the wall sections.

Abstract: There is provided in accordance with the invention apparatus and a method for boring holes through carbonaceous deposits.The method involves the step of introducing combustion-supporting gases such as air under pressure through the apparatus installed in a well hole opposite the area to be bored. The apparatus comprises inner and outer flexible tubes with flexible, jointed armour and a directional nozzle which permits it to be bent and change attitude as necessary. The adjacent carbonaceous interface after being ignited is maintained in this condition by the combustion-supporting gas which is supplied under pressure. As the combustion proceeds, the pressure expels the combustion products and the gas injector is advanced along the channel it has previously formed.

Abstract: An improved flexible vacuum bellows is provided for interconnecting flanged pipe sections which comprises a flexible tubular joint member having one or more radially inwardly extending U-shaped convolutions and having bores that align with and are penetrated by fastening means joining the tubular joint member to the pipe sections.

Abstract: An intermediate conduit extends between and interconnects adjacent pivotally connected ends of a pair of conduits. The intermediate conduit is disposed in at least one turn about the pivotal interconnection, and the distance between the ends of the intermediate conduit is substantially greater than its length. A damping device such as a dashpot interconnects the intermediate conduit and one of the pair of conduits and acts in a direction parallel to the axis of the turns of the intermediate conduit.

Abstract: A seal-welded pipe joint mechanically braced by a clamp for preferred use in handling toxic and radioactive materials is disclosed together with a process for joining the same. The joint comprises a pair of abutted male frustroconical skirts, each attached integrally to the pipe segments to be joined and confronting each other at opposed mating and finished surfaces which define a sunken ridge at their periphery. A uniform continuous seal weld of relatively slight penetration seals the opposed mating and finished surfaces at the ridge. The pipe joint is physically secured by a plurality of, for example, three female frustroconical segments forming a circumscribing collet which is circumferentially clamped to the skirt by a plurality of, for example, three tangentially disposed bolts. The abutted frustroconical skirts taper from a broad cross section adjacent the pipe wall radially outwardly to a narrower cross section.

Abstract: Rigid pipe sections of a dredger are pivotally connected to allow universal movement therebetween and a flexible, elastic bellows communicates the adjacent ends of the pipe sections. The bellows in its free state is prestressed so as to be under compression and is further compressed when in place between the ends of the pipe sections.

Abstract: A torsionally controlled swivel joint having at least one axis of rotation is provided with a torque element, either in the form of a helical torsion spring or one or more torsion bars, completely enclosed within the flow passage of the joint to counteract torsional forces applied to one section of the joint relative to another section. One end of the torque element is rigidly connected to one section of the joint while the other end is rigidly connected to a cylindrical adjustment disc rotatable with and sealed in fluid tight engagement to the other section of the swivel joint. In the preferred embodiment, torsional preloading of the torque element is achieved by a plurality of locking balls in a ball race formed in the mating surfaces of the adjustment disc and swivel joint section.

Abstract: A means and apparatus for connecting resilient conduit is provided in which a first section of resilient tubing of internal dimensions sufficient to slide over the conduits and having two grooves, one spaced from each end of the internal surface of the section with each groove containing resilient gasket material substantially filling the groove to form a gasket around the conduit is slid into place so that the conduits to be connected are juxtaposed within the first section of tubing between the gasketed grooves. An encasing tubing is placed around said first section of tubing at least overlying the resilient gasket material. A pair of split metal clamping rings with one ring adjacent each end of the first tubular section and joined by a plurality of spacer bars united at each end to the clamping rings is fitted over the encasing tubing in relation to apply pressure on the encasing tubing when the split rings are united in clamped position.

Abstract: Rigid conduit sections have a flexible hose interconnecting their ends with in a cardan joint. One end of the hose has a flange that rotatably seals in fluidtight relationship with a flange on the adjacent end of the associated rigid pipe section, thereby to relieve torsion in the hose.

Abstract: A conductive hose having dual connections disposed in the internal spiral groove formed in an air carrying hose includes plastic molded couplers on its ends which provide the fluidic and electrical connection to members that may be coupled thereto. Each of the molded couplers consists of inner and outer telescoped members that are glued together at their mating peripheries with the inner member including ribbed portions at the junction of the two mating parts. A strain relief is mounted between the members and retained by them so that electrical flow may be securely had through the hose and its couplers.

Abstract: A hose clamp utilizing two constricting band type hose clamps which are tied together by means of a strapping arrangement includes one clamp which surrounds the hose itself and is provided with protuberances which press into the outer surface of the hose to provide a strong gripping function which prevents the hose from moving with respect to this clamp while at the same time engaging the hose in a non-destructive manner. The hose if not grippingly interengaged with the clamp would under pressure slide out of the clamp and off of the fitting. A second hose clamp is clamped about the rigid fitting to which the hose is attached at a point beyond an enlargement in the fitting, so that this clamp cannot move past the fitting enlargement. The straps connecting the two clamps then prevent the hose from sliding off of the rigid fitting because of the restraint provided by the clamp which is secured beyond the fitting enlargement.

Abstract: A device for releasable fastening of tube or pipe ends comprising two shell parts joined together at one end by a pivot bolt and at the other end by a locking arrangement hinged by another pivot bolt, a connecting tube arrangement associated with the two shell parts for receiving a tube or pipe end, the two shell parts cooperating with the tube or pipe end to retain it in connection with the connecting tube arrangement and a mounting having a central opening by means of which it is located around the connecting tube arrangement, a slot extending from the central opening with a circular path along part of its length and for receiving one of the pivot bolts and an outwardly opening recess in a region opposite to the circular part of the slot for receiving the other pivot bolt.

Abstract: A water seal packing for sealing water at the coupling portion of underwater structures comprising first and second structures; said water seal coupling comprising a first flange, an intermediate body portion, a flexible U-shaped portion and a second flange; each component being formed integrally with each other, said first flange being fixedly secured to said first underwater structure while said second flange being fixedly secured to said second underwater structure.

Abstract: A detachable mounting and support arrangement for the stationary spray tube which extends through a rotary drum. A tension cable extends through the spray tube and is anchored exteriorly of the drum and spray tube at each end of the drum.

Abstract: A fitment for mounting on a vessel or tank .[.constructed of reinforcing filaments such as glass or other fibers located in a resin matrix.].. The fitment includes a platform or top wall which is generally planar and has a pair of generally opposing rectilinear sides. The platform is adapted for supplying a fitting for a hose or nozzle which can be removably attached thereto. Two legs depend from the sides of the platform. A pipe also depends from the central portion of the platform. The ends of the pipe and legs are adapted for securement to the wall of a tank or vessel .[.by bonding resin compatible with the resin of the fitment and the tank.].. The fitment is preferably constructed of layers of glass fiber reinforcing materials.