Abstract: A pipe support clamp includes a pair of like outer hinged rigid metal wire rings spaced apart for mounting about the ends of two pipe sections to be joined together. The rings include two pivotable semicircular sections joined at the lower ends by a hinge. Inner semicircular rings are secured to the outer rings by radial spacers. The inner rings are adapted to fit closely about and hold the ends of the two pipe sections. A pair of turnbuckles at the other ends of the outer rings secure the pivotable semicircular sections together when the clamp is moved from an open to a closed position. A coupling device for permanently securing and sealing the pipe ends can then be mounted around the ends within the spaced apart rings. The support clamp is then removed.

Abstract: In a housing (3) of an attachment piece (1), at least one hollow core space (5) for receiving one end of a corrugated tube (2) is available. In this hollow core space (5) between the corrugated tube (2) and the housing (3), a sleeve (4) is disposed into which the end of the corrugated tube (2) is inserted. On this sleeve (4) elastic elements (15, 16) are present which are pressed toward an axis (29) of the attachment piece (1), through an outer ring (23) on the housing (3). At least one of the elastic elements (15, 16) is equipped with one positioning element (20) and a locking element (24), with these elements (20, 24) engaging an aperture (21) in the housing (3). The connection between corrugated tube (2) and housing (3) can only be broken with an auxiliary tool and is therefore protected against unintentional detachment.

Abstract: A fluid conduit connector assembly includes a prepositioning carrier for mounting a connector assembly upon a first fluid conduit segment, a hose clamp portion attached to the prepositioning carrier for maintaining the hose clamp in position for engagement with a second fluid conduit segment, and an axially directed activation member for maintaining the hose clamp portion in a retracted configuration prior to engagement of the hose clamp portion with the second fluid conduit segment. The hose clamp portion is movable to a non-retracted configuration when the activation member is slidingly withdrawn in an axial direction from the hose clamp portion.

Abstract: A tube- or hose connector for the transport of a fluid has at least at one end a ring type nipple 2 with a cross hole 4, which serves to mount the connector at an aggregate for receiving a banjo bolt 12 having a head 13 and a threaded shank 14 as well as two gaskets 10, 11. It has a protecting cap 18 to hold together a premounted unit of ring type nipple 2, banjo bolt 12, and the two gaskets 10 and 11, and has an approximately U-shaped form with a clamp 19, at the one end of which a flank 20 overlaps the head 13 of the banjo bolt 12 and at the other end of which a protecting cover 20 for the threaded shank 15 of the banjo bolt 12 is provided. The protecting cap 18 has an extension 26 supporting itself at the threaded shank 15 of the banjo bolt 12, and the protecting cover 22 is borne pivotably at the clamp 19.

Abstract: A hose construction and method of making the same are provided, the hose construction comprising a tubular flexible hose having opposite ends, fastening structure, and a clamp fastened to one of the opposite ends of the hose by the fastening structure for substantially circumferentially and radially inwardly clamping the one of the opposite ends of the hose onto a member that has been inserted into the one of the opposite ends of the hose, the fastening structure comprising a tube of heat shrinkable material disposed over and against part of the clamp and having opposite annular side sections respectively disposed outboard of the clamp and having been heat shrunk to circumferentially and radially inwardly engage against the one of the opposite ends of the hose to hold the clamp thereon.

Abstract: An articulated piping connector facilitates installation of an in-line device such as a gas consumption meter to be supported by a gas supply pipe. The connector has two elongate rigid legs pivotable from a closed condition in which the legs are superposed to an open condition in which the legs are extended to support a meter or other device during installation. The legs have upstanding threaded members for connection to pipes and pipe fittings.

Abstract: A fitting or fitting assembly is provided that comprises a fitting body having an enlarged first end, a nut having a circumferential ridge that has a diameter less than the first end of the fitting body so that the first end prevents the nut from sliding further in one direction, and a ring that is adapted to be assembled onto the exterior surface of the fitting body to prevent the nut from sliding further in a second direction opposite to the first direction. The nut has interior threads that are adapted to receive the external threads of a mated fitting. A method for assembling the fitting comprises the steps of sliding a nut having an internally threaded portion onto a fitting body having an enlarged end that prevents axial movement of the nut in a first direction, and press-fitting a retention ring about the fitting body at a desired position in order to limit the axial movement of the nut in a second direction opposite to the first direction.

Abstract: A fluid coupling wherein a tubular coupling member has a first terminal sealingly engageable with an end of a first conduit and a second terminal sealing engageable with an end of a second conduit. The end of the second conduit has a radially outwardly extending retaining flange and the coupling member has a set of radially movable resilient arms which engage the flange when the second terminal is in proper engagement with the end of the second conduit. The arms can be prevented from becoming accidentally disengaged from the flange by one end portion of a sleeve which is reciprocable along and surrounds the coupling member. The sleeve can be releasably locked in a release position in which the arms are free to become disengaged from the flange and/or in a locking position in which the sleeve prevents disengagement of the arms from the flange.

Abstract: The present invention relates to an improved connector for joining two tuar members together. The connector is formed by a plurality of longitudinally extending fingers extending from an end of one of the tubular members and at least one locking groove in the other of the tubular members for receiving the fingers. The connector further includes a circumferentially extending wire member which is received in a notch in a head portion of each of the plurality of fingers. The wire member is preferably formed from a shape memory alloy and has an original circumference less than the circumference of a circle formed by the notches in the head portions of the fingers. The connector includes apertures through which electric wires may be connected to the shape memory alloy ring member so as to cause the shape memory alloy ring member to return to its original shape and allow release of the joint connection.

Abstract: A tubular coupling is provided having first and second tubular elements. An annular cage is fixedly mounted on the outer surface of a first section of the first tubular element for defining a chamber with the first section for housing a garter spring. The chamber has an annular passage through which a flared end part extending from a first portion of the second tubular element passes during assembly of the first and second tubular elements to permit the garter spring to pass over the flared end part and contract about the first portion for securing the tubular elements in assembly. An expander ring is provided for expanding and centering the garter spring prior to assembly. Further provided are O-rings retained on the outer surface of the first tubular element for sealing the first tubular element to the second tubular element. The O-rings engage with the second tubular element just before the first and second tubular elements are secured in assembly.

Abstract: A tube connection is provided for thin-walled, small calibre metal tubes 15,22, particularly for brake, fuel and hydraulic lines on motor vehicles and for use in refrigeration equipment, with at least one of the metal tubes 15,22 being provided with a flange 14,21 on the end to be connected and the metal tubes 15,22 being encompassed by a sleeve 1,2 in each case, one of which is deformable so as to form a fixed connection between the sleeves 1,2, the deformable sleeve 1 being constructed as an outer sleeve which encircles the other sleeve 2 constructed as an inner sleeve in the assembled condition at least over a portion of its length. The inner sleeve 2 is provided with a circular thicker portion 23 at the end nearest the flange 21 so that a part of the outer sleeve 1 is deformable behind this thicker portion 23 (FIG. 3).

Abstract: A seal or connector and seal apparatus which includes a generally annular member having an outer surface and an inner surface and a plurality of tabs extending generally radially from at least one of the surfaces. The tabs are disposed to engage axially spaced teeth of an associated helically shaped threaded surface.

Abstract: Fittings are provided for flexible sewage drain hoses to connect recreational vehicles to sewage facilities as may be found in public parks or other locations. The fittings include a shallow groove for storing an elastic ring, and a wider, deeper groove for placing the flexible sewer hose thereover. The ring can be quickly, easily manually dislodged from the storage groove and directed over the end of the hose where it contracts and securely holds the hose onto the fitting within the wide groove.

Abstract: A tube coupling comprising a male member having a spherical surface at one end for extending into the flared end of a tube with a female member threadedly connected to the male member for providing a clearance space between the spherical surface of the male member and an appropriately configured and sized inside surface of the female member. A unique ferrule having a pair of concentric, spaced apart contact surfaces is mounted in the clearance space between the inside surface of the female member and the flared end of the tube when the spherical seat of the male member is within the flared end of the tube. Upon tightening of the female member on the male member, the ferrule causes the flared end of the tube to deform between its concentric, spaced apart contact surfaces and conform to the spherical seat of the male member to effect sealing.

Abstract: A crush tube is used to provide a fluid connection between a first and second member. The crush tube has two tubular portions with a spherical portion therebetween. The tubular portions are loosely received in nominally coaxial bores having entrance chamfers. The spherical portion is deformed into contact with the chamfers as well as between the members whereby the tube provides a sealed fluid path between the bores.

Abstract: An anti-rotation bracket for restraining rotational and axial movement of an oil supply tube in an aircraft gas turbine engine during assembly and disassembly of a flanged connection between segments of the tube. The bracket includes a leg which extends about an adjacent stiffening ring of the turbine frame, a body portion having a substantially U-shaped channel opening to the leg for positioning the bracket around the oil supply tube, and a plurality of elongated holes passing through the body portion for clamping the bracket to the oil supply tube flange by the screws which attach the flanges together. The leg preferably includes spaced walls which receive a portion of the ring therebetween and provide clearance to allow for movement of the tube as a result of thermal expansion.

Abstract: A fitting for attachment to a tube by swaging is disclosed. The fitting comprises a cylindrical sleeve having a tapered outer surface and an inner surface for receiving the tube. A cylindrical swaging ring having a tapered inner surface engages the tapered outer surface of the sleeve such that axial movement of the ring in a forward direction with respect to the sleeve causes the ring to apply a radial force to the sleeve to swage it to the tube. The swaging ring is comprised of a lightweight, high strength material, such as a composite material, having high tensile strength in a circumferential direction and a high modulus of elasticity, with relatively low density and low elongation properties. One preferred composite material comprises an epoxy resin matrix and a high strength graphite fiber. The swaging ring is locked onto the sleeve both before and after swaging by one or more protrusions on the outer surface of the sleeve which cooperatively engage an annular groove in the swaging ring.

Abstract: A connector for connecting a tubular starter head to a casing of a well allows connection without special tools. The tubular head has an annular recess extending upward from its lower end. The connector includes a seal actuating ring and a slips actuating ring, one of the rings having a recess. A seal ring locates in one of the recesses and slips locate in the other recess. Upward movement of one of the actuating rings sets either the slips or the seal ring first while the other remains unset. Then upward movement of the other actuating ring sets the other.

Abstract: This device, in which the tubular element (1) is fixed to the spigot (2) by maintaining and sealing means (4), is characterized in that the maintaining and sealing means comprise two sleeves (5,6) coaxial with the spigot, one of the sleeves being an outer sleeve (5) connected to the component (3) and comprising resiliently deformable branches (10,11) biased in the direction toward the spigot, there being provided at the end of each branch a hooking portion projecting inwardly of the outer sleeve, and the other sleeve being an inner sleeve (6) comprising an abutment surface (7) and mounted to be axially movable between the outer sleeve (5) and the spigot (2) by the bearing of the tubular element (1) against the abutment surface (7), between a mounting position in which the inner sleeve (6) maintains the branches (10,11) of the outer sleeve (5) spaced away from the spigot (2), and a hooking position in which the inner sleeve releases the branches (10,11) of the outer sleeve (5), so that the hooking portions of

Abstract: A pipe coupling for the union of a corrugated pipe therewith is formed of a pipe coupling proper and a lock cylinder for fixing a corrugated pipe. The lock cylinder is helically joined to the inner surface of the leading part of the pipe coupling proper and fixes the corrugated pipe by rotationally closing the lock cylinder helically tacked to the pipe coupling proper, and at the same time seals the pipe coupling proper by pressing the leading terminal part of the lock cylinder against a seal ring attached fast to the interior of the pipe coupling proper, enabling the corrugated pipe to be infallibly locked and sealed owing to the provision of a spacer adapted to preset and keep a closing distance for the lock cylinder. The spacer is detachably attached to the periphery of the pipe coupling proper.

Abstract: The present invention relates to a quick pipe coupling comprising a tight binding assembly set installed inside of the coupling and an anti-reverse pushing assembly set installed at the opening of the coupling for an easy, fast and convenient operation for connection which is further characterized by the distinctive reversibility of the connected pipes.

Abstract: A syringe tip is connected to a syringe head by an assembly that permits quick detachment and replacement of syringe tips without the use of tools. The assembly is adjustable for permitting or restricting rotation of syringe tip.

Abstract: A cartridge for selectively permitting flow from a master cylinder includes a cartridge body formed with an axial passage extending from a first end to a second end of the cartridge body. A cartridge stem is disposed in the axial passage and is movable in the axial passage between a closed position, in which the cartridge stem blocks flow between the first and second ends of the cartridge body, and an open position, in which the cartridge stem permits flow between the first and second ends of the cartridge body. A method for installing a master cylinder assembly, the master cylinder assembly including a master cylinder provided with a cartridge, in a fluid pressure control system is also disclosed.

Abstract: A method and apparatus of electrically and sequentially completing an oil and/or gas well through a tubing production string in a well casing. The operation includes electrically and sequentially actuating downhole equipment such as well packers, a safety joint, well annulus safety valve, solenoid actuated tubing safety valve, blanking block valve, circulating sleeve, and receiving electrical feedback from the equipment determining the position of the downhole equipment.

Abstract: A closure for sealing the cutter guide tube of a pipe saddle fitting comprises a cap of thermoplastic material having a screw-threaded section (5) to enable releasable attachment of the closure to the tube, and a section (6) with a cylindrical surface incorporating a heating coil (8) to which a welding current is delivered to fix the closure permanently to the tube when the pipe joint has been completed and tested.

Abstract: An assembly for aligning and supporting an adapter flange for connecting fluid pressures to a pressure sensor body in place on the body and to keep the flange in an unsealed condition to prevent pressurizing the body and flange until installation of permanent fasteners. The support fasteners keep the flange oriented in its normal usable position, but the fasteners retain the flange spaced from the body sufficiently so that the flange will not seal. This will prevent accidentally pressurizing the flange and pressure sensor body until permanent fasteners have been installed. The pressure sensor body is provided with threaded openings for receiving permanent fasteners and the body and flange are shipped with at least one extra set of permanent fasteners different in length from the fasteners used on the flange to permit adding adapters for a process correction.

Abstract: A Hose/Clamp assembly is provided which is easily accomplished, inexpensive and greatly facilitates motor vehicle assembly. A clamp in its open position is located and oriented around a hose and secured in place by a rubber band.

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 coupling ring for circular ducts is formed of a single piece of sheet metal and has oppositely extending flanges connected together by an annular channel-shaped rib which cooperatively with the flanges defines oppositely opening grooves containing sealant. The relative dimensions of the grooves is such that a hydraulic lock is avoided at the time the coupling ring is telescoped onto the ducts. Proper sealing can be visually determined by inspection.

Abstract: The piping connector according to the present invention is comprised of a conducting pipe having an annular expanded wall in the proximity of an end part of the pipe, a main body of a joint provided with a structure formed at one end thereof for accepting the conducting pipe thereinto and provided with a circulating hole formed in the axial direction on the other end part thereof in communication with the conducting pipe mentioned above, a sealing means to be fit into the inside area of the main body of the joint, and a retaining means installed inside the main body of the joint, wherein the retaining means mentioned above is comprised of an arm part formed of an elastic body in a shape resembling that of the letter C, and a socket unit comprised of a plurality of suspending parts projecting from the arm part in the direction of the inside diameter and inserted into notched windows formed in the main body of the joint and disposed so as to be put into their direct contact with the annular expanded wall of the

Abstract: A transition coupling for connecting a plastic natural gas supply pipe to a metal service pipe is comprised of substantially plastic components including a tubular non-metallic body and a non-metallic or plastic nut. A plastic nut is threadably connected to the body one at each end thereof for independently compressing seals within the body against the two pipes and separately gripping against the pipes to hold the pipes within the body. At one end of the coupling, a plastic gripper is wedged by the plastic nut to embed in the plastic pipe to anchor the plastic pipe in the coupling. At the other end of the coupling, a metallic gripper is used in conjunction with the other plastic nut to be wedged against and embed in the outside surface of the metal pipe. The metallic gripper is comprised of two segments, the outer surfaces of which are shaped to keep from embedding in the inside surface of the plastic nut and causing the nut to bind on the metallic gripper.

Abstract: A connector for connecting a tubular starter head to a casing of a well allows connection without special tools. The tubular head has an annular recess extending upward from its lower end. The connector includes a seal actuating ring and a slips actuating ring, one of the rings having a recess. A seal ring locates in one of the recesses and slips locate in the other recess. Upward movement of one of the actuating rings sets either the slips or the seal ring first while the other remains unset. Then upward movement of the other actuating ring sets the other.

Abstract: A flexible hose mending apparatus including an adaptor portion and a clamping portion having cooperating engagement structure. The engagement structure preferably includes an outwardly projecting flange provided on an end of the adaptor portion adapted for insertion into the flexible hose and inwardly projecting ribs provided on notched areas of shell sections of the clamping portion. The flange and the ribs serve to retain the clamping portion on the adaptor portion when the adaptor portion is detached from the flexible hose and also to localize the clamping force applied to the flexible hose by the clamping portion when the adaptor portion is inserted therein.

Abstract: A quick connect branch connector includes a saddle to which one end of a spring clip is hingedly connected, a traction device being provided at the opposite end of the spring clip for cooperation with the saddle, whereby the spring clip can be placed under tensile hoop stress in encircling relation with a pipe.

Abstract: Two clamp members are formed to be fitted around the outer wall of a flexible sleeve when the ends of two pipes are located in the opening of the sleeve with adjacent edges of the two clamp members engaging each other in a clamped position for clamping the sleeve to the ends of the two pipes. Each of the clamp members has two spaced apart clamping ridges extending radially inward from its inner wall continuously between its two edges. The two clamping ridges of the two clamp members are located such that when the two clamp members are located around the outer wall of the sleeve and adjacent edges of the two clamp members engage each other, the two clamping ridges of the two clamp members form two spaced apart clamping ridges extending 360 degrees around the inside walls of the two clamp members for engaging the outside wall of the sleeve forming a seal between the sleeve and the ends of the two pipes when located in the opening of the sleeve.

Abstract: A coupling apparatus is provided for quick coupling of surface pumping equipment to a cylindrical member. The cylindrical member is engaged by dogs which are urged into locking position about the cylindrical member.

Abstract: An improved pipe branch fitting for use with a pipe having a pre-cut hole is disclosed. The branch fitting has a cylindrical body freely slidable along the pipe to a point where the hole is pre-cut. On one side, the cylindrical body carries an internally threaded boss into which a modified sprinkler head may be threaded. A gasket positioned between the sprinkler head and the pipe gives the seal as the sprinkler head bears upon the gasket upon tightening of the sprinkler head. The inner end of the modified sprinkler head has a stepped shoulder which abuts the periphery of the hole in the pipe and limits compression applied to the gasket. A reduced diameter end portion of the modified sprinkler head locates itself in the hole and indicates if the fitting is misaligned with the hole. The end walls of the body are each tapered toward the boss to facilitate the sliding of the cylindrical body, when assembled on the pipe are supporting structures of a building in which the piping system is being installed.

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 method of rendering an existing pipeline flexible, by cutting out an intermediate portion of a pipe in a ring form, inserting a pipe joint into a cutout position, and connecting the pipe joint to the pipe. The pipe joint used in this method includes a plurality of sleeves interconnected in a fluid-tight condition to be oscillatable relative to one another. The pipe joint is inserted into the cut-out position and connected to the pipe, with the plurality of sleeves substantially fixed to one another while being interconnected in the fluid-tight condition to be oscillatable relative to one another. The sleeves are thereafter released from the fixed state.

Abstract: A clamp suitable for joining a pair of tubular members such as truck exhaust pipes including a metal band having a reinforcing bar at each end wrapped more than one turn, each wrapped reinforced end forming at least one hold for receiving, threading, and securing a set of bolts and nuts. The band is preferably formed from an aluminized steel, and the reinforcing bars may be non-plated. Embodiments using only the wrapped ends without reinforcing bars, folded rims, beading, and bolt-securing plates are also disclosed.

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 coupling for joining first and second channels in fluid communication includes a tubular housing having a first section including a wear surface, and a second section for being removably joined in fluid communication with the second channel. A first fitting includes a flange for being joined in fluid communication with the first channel, and an integral piston including a piston ring disposed in contact with the wear surface for forming a seal therewith. Differential movement between the housing and the piston is accommodated while maintaining a seal with the piston ring.

Abstract: A hub clamp will be used to connect two conduits together in end-to-end relationship. Each conduit has a pair of generally parallel load shoulders that extend around the conduit and are axially spaced from each other. The clamp has two sets of load shoulders, one for engaging each set of load shoulders on each end of the conduit. The clamp is in two halves, and when bolted together, draws the ends of the conduits toward each other. Each load shoulder is separated by a flank. The two flanks of the mating load shoulders are separated by a gap when fully made up. The first load shoulder of each conduit has multiple angled sections. The lead section is at a greater angle than the load section relative to a plane perpendicular to the longitudinal axis of the conduit. The clamp will be mounted releasably to an upper conduit so that it can slide inward and outward, for vertical conduit applications.

Abstract: An improved mechanism for connecting tubular members in a subsea well in which the members are locked together in a preloaded condition. In the preferred form of the invention the loading is provided by a series of fingers mounted on the inner tubular member and flexing through a restriction in the outer tubular member during landing and then springing back from such flexed position to engage and wedge against a tapered shoulder at the lower end of the restriction to both lock the inner tubular member in its seated position and also to provide the preloading desired. In a second form, the inner member is landed on a ring which is engaged on the outer tubular member landing seat and then further lowering of the inner member moves a wedge on the inner member to cause the upper end of the ring to engage the internal profile of the outer member and the lower end to engage a lower external profile on the inner member and to be wedged therein to create the lock down and the desired preload.

Abstract: A fluid connector system including a modified plumbing union having a rotatable member for drawing said union into a fluid tight condition. A drive tool is electric motor actuated and includes a reduction gear train providing an output gear engaging an integral peripheral spur gear on the rotatable member. A housing member attached to the connector assembly provides coaxial alignment for an interface socket on the drive tool. A hand lever actuated latching system includes a plurality of circumferentially spaced latching balls selectively wedged against the housing member attached to the connector assembly or to secure the drive tool to the connector assembly with its output gear in mesh with the integral peripheral spur gear. The drive motor is torque, spped and direction controllable.

Abstract: A hydraulic end fitting of the type including a bolt for securing the fitting to a hydraulically actuated device such as a brake caliper and including a circular washer having a symmetrically deformed inner circumference to retain the bolt to the fitting until the bolt is secured to the device.

Abstract: An improved locking assembly is disclosed for securing the connection between a push-on fitting having a flared end which is fitted into a cage and surrounded by a garter-type coil spring housed within the cage. The locking assembly includes a generally cylindrical coupling having a knurled outer surface and a single radial slit therein. The coupling includes at least two hinges integrally formed in the outer circumference thereof wherein at least three independent bearing surfaces are formed when the coupling encircles the connection. A multi-step circumferential recess within the coupling is utilized to accommodate variations in the external dimensions of the cage and a circular clamp or single screw are utilized to urge the single radial slit into a mated relationship such that relative axial movement of the cage and push-on fitting is restricted by radial pressure exerted by the coupling.

Abstract: A bolted pipe joint releasable by remote control includes two flanges each eing disposed at a respective one of two pipe ends. A centering aid cooperates with both of the flanges. A seal is provided for the pipe ends. A fastening screw presses the two flanges together. The fastening screw has first and second threaded regions being successively engaged upon pressing the flanges together. The first threaded region has a substantially greater pitch than the second threaded region.

Abstract: The invention relates to a method and apparatus suitable for angularly adjusting an attachment member to be sealed to a bore, for example a wellhead body (2) in the bore of a conductor (4). The attachment body (2) is to be sealed through the intermediary of a housing (6) and a metal-to-metal wedge seal. A support ring (14) encircling the external peripheral surface of the housing (6) is movable between two axially spaced positions on the peripheral surface, and movable pins are provided to maintain the support ring (14) in a first, out-of-the-way position until the housing (6) is positioned in the bore (4) mouth, the pins (9) being releasable to permit axial movement of the annular support member ring (14) from the first position towards a second position in which the member body (2) is in direct contact with the bore mouth.

Abstract: An assembly for forming a mechanical connection to an object, such as a tube within a hydraulic system, comprising a transversely heat-shrinkable shape memory alloy collar having an axially facing surface, a ring having an axially facing surface and a device for retaining the ring and the collar coaxially with respect to one another. In use, the collar is caused to shrink so that it engages the external surface of the tube. Force can be applied axially to the object through the collar by means of the ring.