Abstract: A joining structure airtightly or liquid-tightly joins an outer peripheral surface of the pipe member and an inner peripheral surface of a cylindrical member to be mounted on the pipe member, and the pipe member and the cylindrical member are made inseparable by an annular protrusion formed on the inner peripheral surface of the cylindrical member.

Abstract: A device for separating a gas, such as air, into components, includes a plurality of modules, each module having one or more polymeric membranes capable of gas separation. A set of valves, pipes, and manifolds together arrange the modules in one of two possible configurations. In a first configuration, the modules are arranged in parallel. In a second configuration, the modules are divided into two groups which are arranged in series. The device can be switched from parallel to series, or from series to parallel, simply by changing the positions of a small number of valves, typically three valves. The device can therefore produce gas either of higher purity, or moderate purity, depending on the settings of the valves. The device also includes improved structures for connecting the modules to inlet and outlet manifolds, and also includes devices for temporarily isolating one or more modules from the system.

Abstract: A cutting ring fitting for a thin-walled pipe, includes: a connecting body having a tapered cone; a cutting ring; a union nut which can be screwed onto the connecting body; and a reinforcing sleeve for insertion into the pipe, the reinforcing sleeve having an axial slot. A pipe includes such a cutting ring fitting, and a method mounts such a cutting ring fitting on a thin-walled pipe.

Abstract: A connector device has male and female parts with respective coaxial passageways. An external screwthread of a collet engages an internal screwthread on the female part and relative rotation between those screwthreads causes engagement of the female and male parts. A slot in the collet extends longitudinally and is open at both ends to enable the collet to be splayed as a split collet. A wedge located between the male part and the collet is displaceable longitudinally to splay the collet and lock the male and female parts in a sealing engagement. The connector includes a ring surrounding the end of the collet remote from the engagement between the male and female parts to resist splaying of the collet at that end. The connector without the male and female parts may also be used for connecting other such male and female parts.

Abstract: Compression fittings for pipes having a range of diameters, including a support body with a central section between end sections, the central section having a smaller diameter than the end sections, with a transition surface between the central section and each end section. A gasket fits over a pipe and engages one of the support body end section end surfaces. A fitting nut is movable axially over the support body to draw the support body and the gasket together in the axial direction and bias the gasket radially inward against the pipe. A grip ring encircles the pipe at one gasket end and has a surface engaging the fitting nut whereby the fitting nut biases the grip ring radially inwardly toward the pipe. An insert adapter has a hub with a radially extending flange may block the other gasket end to load the gasket between its axial ends.

Abstract: Medical device assemblies having a connection mechanism for securely connecting a hub to fluid storage containers in a luer slip relationship are described. An exemplary medical device includes a hub forming a cavity, a second indicating element disposed within the cavity that engages the hub. Additional features of the medical device include a second indicating element contoured to form a line contact with the hub. In a specific configuration, the hub includes a first indicating element attached to the hub and extending proximally into the cavity having a protrusion. In a more specific configuration, the medical device includes a fluid storage container that has an indication system for visually indicating optimal fluid-tight engagement of the hub and the fluid storage container.

Abstract: An assembly having a fitting body, a structure, an annular cavity within the fitting body, a grip ring, a seal element, and a spacing element. The structure has an end that is received in the fitting body. The annular cavity is disposed within the fitting body between an interior surface of the fitting body and an exterior surface of the structure. The grip ring, seal element, and spacing element are disposed in the annular cavity in a side-by-side relationship. The grip ring includes a plurality of first teeth that engage the exterior surface of the structure. Both the seal element and the spacing element extend radially across a height of the annular cavity such that the seal element and the spacing element each contact and sealingly engage the exterior surface of the structure and the interior surface of the fitting body.

Abstract: To provide a pipe joint construction with which swift and strong connection is possible without flare work on an end portion when a pipe composed of aluminum, a pipe joint construction provided with a joint main body 1 with a male screw and a cap nut 3 screwed to a male screw 2 of the joint main body 1 to connect an aluminum pipe 4, has a cylindrical compressed deformation sleeve 7, stored in an inner storing space 10 of the cap nut 3 and having a concave peripheral groove 9 on a peripheral face 8, in which a bottom thin wall portion 13 of concave groove, receiving compressing force F in axial direction from the joint main body 1 and the cap nut 3 when the cap nut 3 and the male screw 2 of the joint main body are screwed, is plastically deformed in a radial inner direction to bite into a peripheral face 14 of an inserted aluminum pipe 4 for stopping the aluminum pipe 4.

Abstract: An axially swaged fitting for use in permanently coupling tubes together. The swaged fitting may be useful in coupling metal hydraulic lines to one another in an airplane. According to one embodiment, the swaged fitting includes a sleeve with a hard metal surface and a swaging ring with a soft metal surface, such that during the swaging process the soft metal surface of the swaging ring is deformed.

Abstract: Apparatus and method for mechanically attached connections of conduits may include a conduit gripping member, a drive member, and a seal member, the drive member causing axial movement of the conduit gripping member to indent into an outer surface of the conduit when the assembly is pulled-up, the drive member causing the seal member to form a zero clearance seal at a location that is axially spaced from the conduit gripping member. The zero clearance seal may comprise a face seal arrangement including a gasket, and the conduit gripping member may be a ferrule, ring or other device that can grip and optionally seal against the conduit outer surface. The assembly may include a sensing function for detecting or sensing a characteristic or condition of an assembly component or the fluid or both. In one embodiment, a body coupling member has a two piece construction of a main body and a conduit socket insert. A flared fitting embodiment is also provided.

Abstract: Connectorizing an optical fiber cable includes mounting at least part of a connector housing about a ferrule assembly; positioning a crimp sleeve so that a distal section of the crimp sleeve is disposed about a proximal end of the connector housing and a proximal section of the crimp sleeve is disposed about a jacketed portion of the optical fiber cable; applying a first force to the distal section of the crimp sleeve to tighten the distal section of the crimp sleeve against the proximal end of the connector housing; and applying a second force to the proximal section of the crimp sleeve to tighten the proximal section of the crimp sleeve against the jacketed portion of the optical fiber cable. Adhesive may be added to the proximal section of the crimp sleeve through an aperture.

Abstract: The disclosure presents exemplary embodiments of a cartridge nut concept for conduit fittings. The cartridge nut concept may include the feature of loosely retaining one or more conduit gripping devices with a fitting component such as a male or female threaded nut. The cartridge nut concept may be realized using one or more geometry or shape features or characteristics of one or more conduit gripping devices. Still further, the cartridge nut concept may be realized in combination with a ferrule cartridge concept.

Abstract: A bite-in type pipe connection structure is provided, the pipe connection structure being capable of, even if piping connection work is performed with a length of piping inserted insufficiently, minimizing deterioration of air-tightness at the joint portion, at which the piping is connected, due to an offset load acting on the piping. Also provided are a valve, a bite-in type pipe joint, and a refrigeration device using the bite-in type pipe connection structure. A ferrule is provided with: a low-strength portion which, when a coupling member becomes fastened to a joint body by manually rotating the coupling member, allows the distal end portion of the ferrule to deform so that the distal end portion restrains a length of piping which is to be connected; a level changing portion which connects a front tapered surface, which corresponds to the low-strength portion, and a rear tapered surface; and a rearward portion which is adjacent to the low-strength section.

Abstract: A drive nut for a fitting includes an interior socket centered on a central axis and configured to receive at least a rearward portion of a conduit gripping member. The socket is defined by a radial drive surface positioned to engage the conduit gripping member during pull-up, a first longitudinal surface radially outward of said drive surface and a tapered second longitudinal surface between the drive surface and the first longitudinal surface, wherein a conduit gripping device contacts the second longitudinal surface upon an initial pull-up and each remake. This geometry facilitates a greater number of available remakes by reducing lost stroke, and can provide less stroke loss for fittings pulled up by torque.

Abstract: A fitting for coupling with a pipe in a sour environment includes a coupling body, a ring positioned to fit over an end of the coupling body, a main seal formed on an inner surface of the coupling body, a transition section positioned adjacent the main seal, an inboard seal formed on an inner surface of the coupling body, and an outboard seal formed on an inner surface of the coupling body. The transition section is formed as an indentation on the inner surface of the coupling body and has a first portion with a first diameter and a second portion with a second diameter, with the first diameter being greater than the second diameter. When the ring is fitted over the at least one end of the coupling body via force, the ring and coupling body apply a coupling force to the main seal, the outboard seal and the inboard seal to connect the pipe to the coupling body in a non-leaking manner. The fitting is made of a low alloy carbon steel material. The main seal includes a first seal, a second seal, and a third seal.

Abstract: A crimp connection arrangement for pressurised pipes with a compression sleeve and a pipe, wherein an end piece of the pipe is insertable into the compression sleeve and wherein by an application of an external force to a pressing portion of the compression sleeve, a connection is achievable between the compression sleeve and the end piece of the pipe.

Abstract: A suspension for fuel injection systems is used for connecting a fuel injector to a fuel-carrying component. A connecting body having a receiving space is provided for this purpose. The connecting body has an opening, via which a fuel fitting of the fuel injector is insertible at least partially into the receiving space of the connecting body. Furthermore, an annular element and an elastically deformable element are provided. Fuel fitting is supported via the annular element and the elastically deformable element along an axis of the receiving space of the connecting body. A fuel injection system having such a suspension is also indicated. The suspension allows for a soft coupling of the fuel injector to the fuel-carrying component at a desired target stiffness.

Abstract: A ferrule for a metal tube fitting includes an annular body having a generally cylindrical radially interior wall extending through the center of the ferrule. An outer radial wall extends from the ferrule front end to a rearward flange portion of the annular body. The outer radial wall has: a first tapered portion extending from the ferrule front end with an increasing radial dimension towards the rearward flange portion, the first tapered portion extending to a crown portion, the crown portion including a convex surface that tapers radially inwardly towards the rearward flange portion.

Abstract: The invention relates to a connector unit for connecting capillaries, in particular for high-performance liquid chromatography, wherein a sealing element sealing the capillary protrudes at least partially into the interior of the capillary, while a portion of the sealing element that protrudes axially from the capillary can be subjected to a compressive force that is introduced via the capillary to obtain an axial or radial plastic and/or elastic deformation.

Abstract: The present invention relates to a method for reinforcing a connection tube having an expansion part, and to a connection tube having an expansion part reinforced by said method, characterized in that, in the method, a reinforcing tube manufactured using a homogeneous or heterogeneous synthetic resin, which is mounted on the outer surface of one end of a tube body formed by extruding a synthetic resin, and said tube body, in which the expansion part is to be formed, are heated to the glass transition temperature thereof. Then, the end of the tube body is fitted and fixed into an external former mold for expansion within a range in which said reinforcing tube is mounted, and an expansion member is inserted into the tube body so as to expand and form the end of the tube body on which the reinforcing tube is mounted.

Abstract: A coupling device includes a coupling body and a collar adapted to engage a tubular member in a fluid tight seal. The coupling device includes axially spaced front and back ferrules which engage during mounting to provide a plurality of seals intermediate the ferrules and the tubular member as well as the coupling body. The back ferrule includes a generally cylindrical or tubular wall that is elastically/plastically deformed to an arcuate shape to enhance the maintenance of the seals.

Abstract: The invention relates to a clamping ring (6) that presses an end of a pipe (1) against a connecting piece (2) by back shrinkage. The clamping ring (6) comprises a body (7) comprising a plastic material having memory properties. The body (7) has a first end (8) to be positioned at a distance from the end of the pipe (1) and a second end (9) to be positioned close to the end of the pipe (1). The body (7) of the clamping ring (6) has a first position at the first end (8) or at the distance from the first end (8) having a first radial wall thickness (A). The body (7) of the clamping ring (6) has at least one second position between the first position and the second end (9) such that the body (7) of the clamping ring (6) has a second radial wall thickness (B) at the second position. The second radial wall thickness (B) is smaller than the first radial wall thickness (A).

Abstract: A compression ring includes an outer surface opposing an inner surface, with teeth extending radially inwardly from the inner surface. First and second circumferential ends are complementarily interfittable, and are separated by a circumferential gap, allowing the compression ring to be compressable when being installed in a connector assembly. First and second axial ends of the compression ring are chamfered to facilitate compression. The teeth extend circumferentially from the first and second circumferential ends and are complementary to conduit threading. Each tooth includes first and second sides, with the first side perpendicular to the inner surface to resist pullout of a conduit from the connector assembly. The teeth terminate in sharp points for better gripping of unthreaded conduits. A compressed compression ring accommodates threaded conduits by complementarily mating with threading, and unthreaded conduits by biting into their outer surfaces.

Abstract: A marine riser assembly having a first tubular member having an external surface with a plurality of first axially spaced formations, a second tubular member having an external surface with a plurality of second axially spaced formations thereon, a segmented ring in surrounding relationship to the first and second tubular members, the segmented ring having an inner surface with a plurality of formations engageable with the formations on the first and second tubular members, the engageable formations serving to urge the first and second tubular members toward each other when the segmented ring is subjected to radially inwardly directed compressive forces, a sleeve in surrounding relationship to force the engageable formations together and a seal assembly for sealing against external and internal pressure.

Abstract: A ferrule for a metal tube fitting includes an annular body having a generally cylindrical radially interior wall extending through the center of the ferrule. An outer radial wall extends from the ferrule front end to a rearward flange portion of the annular body. The outer radial wall has: a first tapered portion extending from the ferrule front end with an increasing radial dimension towards the rearward flange portion, the first tapered portion extending to a crown portion, the crown portion including a convex surface that tapers radially inwardly towards the rearward flange portion.

Abstract: A fitting for a tube or pipe capable of functioning a high pressures having a first fitting component adapted to receive the conduit end; a conduit gripping device such as a ferrule or ferrules and a second fitting component that can be joined to the first fitting component to cause the conduit gripping device to grip the conduit and seal when assembled. In one aspect of the invention, the first fitting component is constructed from a material that is softer than the material used to construct the second fitting component. An additional aspect of the invention include a retaining portion on the second fitting component that constrains the tube gripping device against pressure. The retaining portion can also be configured to retain the tube gripping device to the second fitting component prior to installation and in a finger-tight condition.

Abstract: Mechanically attached connections for conduits may include a conduit gripping member and first and second connection members. The first and second connection members may be, for example, a nut member and a body member where the connection members cause axial movement of the conduit gripping member to grip and seal the conduit when the assembly is pulled-up. The mechanically attached connection may include a sensing function for detecting or sensing a condition or characteristic of at least one of the following: the mechanically attached connection, one or more of the connection members, the fluid contained by the mechanically attached connection, or a combination thereof. The sensing function may be, for example, a sensor that is integrated with at least one of the nut member and the body member.

Abstract: Methods and apparatuses for controlling the flow of hydrocarbons from a structure or conduit are provided. An engagement apparatus having a body with threads disposed on an end is lowered into a position suitable for engagement with the structure or conduit, the threads including a deformable material. Rotation of the apparatus to engage the threads with the structure or conduit deforms the material to form a wedge shape that provides a seal between the apparatus and structure or conduit, and resists removal of the apparatus from the structure or conduit. Additional conduits can be secured to the upper end of the apparatus, in combination with a valve. The valve can direct the flow of hydrocarbons from the structure or conduit to selected additional conduits, enabling vessels and/or containers to be removed and/or replaced without wholly ceasing the flow of hydrocarbons in a manner that could cause a buildup of pressure.

Abstract: The seal made between two surfaces is enhanced by forming a coating (22), such as a self-assembled monolayer of a functionalized fluorinated macromolecule, on one or both of the surfaces.

Abstract: A cable and flexible conduit gland for securing a cable and a flexible conduit to a box member is disclosed to include a casing having a middle stop flange extending around the periphery thereof, a first fastening member and a second fastening member formed integral with the periphery thereof and respectively disposed at two opposite sides relative to the middle stop flange ad and a tapered inner surface portion located on the inside wall, a collar inserted into the casing and having a tapered front extension fitting the tapered inner surface of the casing, an elastic packing ring stopped against the rear end of the collar, and a holding-down cap fastened to the first fastening member of the casing to hold down the collar and the packing ring and to lock the inserted flexible conduit and cable together.

Abstract: A coupling for attaching to an end of a tube, pipe, conduit or other round solid or hollow section. The coupling includes an inner body and a collar to be provided around the inner body. The inner body has an interior bore passing through at least a portion thereof to receive a tube and the bore has one or more interior annular protuberances extending into the bore. When the collar is provided around the inner body it applies a circumferential compressive force to deform the inner body such that the one or more annular protuberances engage the tube or the like to seal with it.

Abstract: Described is an improved axially swaged fitting for use in permanently coupling tubes together. The swaged fitting may be useful in coupling metal hydraulic lines to one another in an airplane or other applications, such as industrial hydraulic systems or other systems. According to one embodiment, the swaged fitting includes a sleeve with a hard metal surface and a swaging ring with a soft metal surface, such that during the swaging process the soft metal surface of the swaging ring is deformed.

Abstract: A fluid fitting for attachment to a tube includes a cylindrical first sleeve having a tapered outer end surface and an inner surface defining an axial bore for receiving the tube. A cylindrical second sleeve creates an annular space for receiving the tube between the first and second sleeves when the second sleeve is placed within the axial bore. The axial bore has substantially equal diameter throughout. A swage ring has a tapered inner surface that axially swages the swage ring to the first sleeve, second sleeve and tube. A first sleeve shoulder restricts axial movement of the swage ring. A first portion protrudes from the inner surface of the first sleeve to restrict axial movement of the second sleeve.

Abstract: A marine riser assembly having a first tubular member having an external surface with a plurality of first axially spaced formations, a second tubular member having an external surface with a plurality of second axially spaced formations thereon, a segmented ring in surrounding relationship to the first and second tubular members, the segmented ring having an inner surface with a plurality of formations engageable with the formations on the first and second tubular members, the engageable formations serving to urge the first and second tubular members toward each other when the segmented ring is subjected to radially inwardly directed compressive forces, a sleeve in surrounding relationship to force the engageable formations together and a seal assembly for sealing against external and internal pressure.

Abstract: A stainless-steel fitting for resin tubes, which easily and securely connects resin tubes and is also inexpensive, is provided. Resin tube (9) is inserted into insert part (8), provided on fitting main body (1); nut (3) is screwed onto fitting main body (1) and sleeve (2) is moved; in the pipe fitting which presses and locks resin tube (9) between insert part (8) and sleeve (2), a step part, composed of large diameter part (2a) and small diameter part (2b), is formed on the outer surface of the sleeve part (2); the length of small diameter part (2b) is that wherein the end-face of the small diameter part (2b) protrudes outward from nut (3), when sleeve (2) is inserted into nut (3); and nut (3) and sleeve (2) are integrated by pressing and spreading the inner diameter of this end-face.

Abstract: An exemplary connector assembly includes a connector body, a compression nut, a compression ring, and a sealing ring. A conduit may be inserted through the compression nut and the connector body. The compression ring may include a circumferential gap between two complementarily interfittable circumferential ends to allow it to compress, and the sealing ring may vary in diameter along its axial length. As the connector body screws into the compression nut, the compression nut presses against the compression ring, which in turn pushes the sealing ring against the connector body. The connector body may include a connector chamfer. The sealing ring pressing against the connector body, preferably against the connector chamfer, forms a seal between the conduit and the connector body. The seal resists contaminants such as dust and moisture. Compression of the compression ring around the conduit helps secure the conduit to the compression nut and the connector body.

Abstract: A sanitary hose coupling (1) including a tubular coupling base body (2) which, in at least one of the base body end regions thereof, has a hose connector (3) profiled in at least one sub-region for a flexible water hose (4) to be pushed on, and also includes a crimp sleeve (6) which, when deformed, fixes an end (5) of the water hose (4) encompassed by the crimp sleeve (6) on the hose connector (3). The hose coupling (1) provides that the end (5) of the water hose (4) encompassed by the crimp sleeve (6) can be fixed in a rotationally fixed manner on the hose connector (3), and that the end (5) of the hose can be pushed onto a profiled section (7) of the hose connector (3) that is not round in the circumferential direction. Since the hose coupling permits a torque transmission between the water hose (4) and the coupling base body (2), the hose coupling is able to substantially facilitate the mounting and dismantling of a water hose (4) even under restricted spatial conditions.

Abstract: A device (30) for feeding working fluid to an assembly (14) requiring working fluid includes at least one fluid channel (20, 20a-20d) extending from a surface (16a) and at least one screw element (22, 24) capable of being screwed from the surface (16a) into the at least one fluid channel (20, 20a-20d) for feeding working fluid into the fluid channel (20, 20a-20d) or for closing the fluid channel (20, 20a-20d), the at least one fluid channel (20, 20a-20d) having a first section (32) directly adjacent to the surface (16a) with a larger width, a second section (36) with a smaller width and, between the first section (32) and the second section (36), having a first transition region (34) with an annular surface (34a), and the screw element (22, 24) having at least one sealing surface (22c, 24c) capable of being brought into sealing engagement with the annular surface (34a).

Abstract: A bite-in type pipe connection structure is provided, the pipe connection structure being capable of, even if piping connection work is performed with a length of piping inserted insufficiently, minimizing deterioration of air-tightness at the joint portion, at which the piping is connected, due to an offset load acting on the piping. Also provided are a valve, a bite-in type pipe joint, and a refrigeration device using the bite-in type pipe connection structure. A ferrule 30 is provided with: a low-strength portion 34a which, when a coupling member becomes fastened to a joint body by manually rotating the coupling member, allows the distal end portion 36 of the ferrule 30 to deform so that the distal end portion 36 restrains a length of piping which is to be connected; a level changing portion 32b which connects a front tapered surface 32a, which corresponds to the low-strength portion 34a, and a rear tapered surface 32c; and a rearward portion 30A which is adjacent to the low-strength section 34a.

Abstract: An exhaust pipe connection structure for interconnecting a connection pipe and an exhaust pipe that are arranged in an exhaust system of an, internal combustion engine. Either of the connection pipe or the exhaust pipe is inserted into the other, and the portion where the connection pipe and the exhaust pipe overlap each other is radially deformed and swaged.

Abstract: A fitting assembly is provided with a first fitting component having a stepped wall surface; and a second fitting component radially spaced from the first fitting component when the fitting assembly is in a finger tight condition prior to pull-up. When the second fitting component is displaced into contact with the stepped wall surface during fitting pull-up, the stepped wall surface assists in separating the first fitting component from the second fitting component upon fitting disassembly.

Abstract: A coupling for attaching to an end of a tube, pipe, conduit or other round solid or hollow section. The coupling includes an inner body and a collar to be provided around the inner body. The inner body has an interior bore passing through at least a portion thereof to receive a tube and the bore has one or more interior annular protuberances extending into the bore. When the collar is provided around the inner body it applies a circumferential compressive force to deform the inner body such that the one or more annular protuberances engage the tube or the like to seal with it.

Abstract: A ferrule for a metal tube fitting includes an annular body having a generally cylindrical radially interior wall extending through the center of the ferrule. An outer radial wall extends from the ferrule front end to a rearward flange portion of the annular body. The outer radial wall has: a first tapered portion extending from the ferrule front end with an increasing radial dimension towards the rearward flange portion, the first tapered portion extending to a crown portion, the crown portion including a convex surface that tapers radially inwardly towards the rearward flange portion.

Abstract: The invention relates to a sealed mechanical connection between glass and metal for receiver tubes used in solar plants of the type using a heat-transfer fluid, which uses a mechanical force in order to establish the seal between the inner metal tubes and the outer glass tubes, between which tubes a high vacuum is established in order to prevent heat losses. According to the invention, a flexible, deformable metal joint is used for the above-mentioned seal, which joint, when duly compressed, adapts to the corresponding surfaces of the tubes to be sealed, thereby establishing the seal between the respective tubes. In addition, the invention can include a continuous system for maintaining the necessary vacuum between both types of tubes.

Abstract: A coupling device includes a coupling body and a collar adapted to engage a tubular member in a permanent swaged connection. The coupling device includes axially spaced front and back ferrules which engage during swaging to provide a plurality of seals intermediate the ferrules and the tubular member as well as the coupling body. The back ferrule includes a central region having a generally cylindrical wall that is elastically/plastically deformed to a corrugated tube-like shape during swaging to enhance the maintenance of the seals. A portable installation tool for swaging the coupling body and collar to the tubular member is hydraulically actuated.

Abstract: High localized loading, galling, and high torque forces have been generally eliminated or greatly reduced in a two ferrule tube fitting assembly through suitable modification of the rear ferrule so as to redirect the reaction forces acting between the front ferrule and the drive nut. The rear ferrule has a cylindrical interior wall that closely surrounds the tube end and is provided on the interior cylindrical wall with a circumferentially continuous radial recess that is located between the nose and rear wall of the rear ferrule. The rear ferrule also has a radially external wall that is substantially conical and additionally shaped to extend radially outward toward the enlarged diameter portion or flange of the rear ferrule. The rear ferrule further includes a contoured face on the rear driven surface of the ferrule that engages the drive surface of the drive nut.

Abstract: A computer with a fully integrated virtual keyboard projector and a display projector. The computer includes a base having a CPU, a video card and memory, a screen pivotally mounted to one side of the base, and a display projector mounted to an opposite side of the base and angled to project a computer generated image onto the screen. Further, the computer includes a keyboard projector mounted to the opposite side of the base to project a keyboard onto a surface adjacent to the opposite side of the base. Further, the computer includes another display projector mounted to the opposite side of the base and digitally synchronized with the first display projector for projecting a superimposed image.

Abstract: A tube fitting that uses only two components, namely a fitting body and a fitting nut. The nut and body are adapted to be threadably coupled together by relative rotation therebetween. The nut includes an integral tube gripping ring that cooperates with a camming surface on the body when the fitting is made-up. The camming surface preferably has a steep camming angle. The ring is radially compressed against the tube outer wall to form a seal and a tight tube grip. The ring also forms a line contact-type seal against the camming surface. The ring is designed to have a hinging action and to plastically deform during pull-up to embed into the tubing for excellent tube grip, and an axially adjacent swage or collet zone that isolates any stress riser resulting from the embedding action from vibration effects. The fitting components, and particularly the ring, may be case hardened. The fitting may include a self-gauging feature to indicate sufficient pull-up and to prevent excessive pull-up.

Abstract: A marine riser assembly having a first tubular member having an external surface with a plurality of first axially spaced formations, a second tubular member having an external surface with a plurality of second axially spaced formations thereon, a segmented ring in surrounding relationship to the first and second tubular members, the segmented ring having an inner surface with a plurality of formations engageable with the formations on the first and second tubular members, the engageable formations serving to urge the first and second tubular members toward each other when the segmented ring is subjected to radially inwardly directed compressive forces, a sleeve in surrounding relationship to force the engageable formations together and a seal assembly for sealing against external and internal pressure.

Abstract: The invention concerns a method and device for joining thermoplastics pipes manufactured by spiral winding of a hollow profile. The method according to the invention is characterized in that a welding mirror (5) adaptable to the prepared end surfaces of the pipes and provided with heating means, is inserted in the slot between the pipes (1), the pipe ends are pressed against the heated welding mirror to heat the thermoplastics material at the end of the pipe ends to a welding temperature to render the plastics material on the joint surface plastic, the welding mirror (5) is removed from between the pipes, the heated pipe ends are pressed against each other so that the thermoplastics materials melt together to form a welded joint, and the welded joint is allowed to cool. The welding mirror (5, 5?) according to the invention is characterized in that the welding mirror is adaptable to the shape of the end surface of the pipe cut along a radial side wall (6) of the hollow profile.