Abstract: A cable gland and gasket ring assembly includes a gasket ring and a cable gland formed of a shell, a collar, a packing ring and a connection ring for securing a cable, or, a cable and a flexible conduit, to a junction box. The gasket ring is an annular member, having a first end face, a second end face opposing the first end face, a plurality of annular ribs concentrically arranged on the first end face and an annular convex portion located on the second end face. The connection ring has a recessed portion on a stop flange segment for receiving the annular convex portion and a tapered inner surface located on the inside of the stop flange segment for stopping against a tapered outside surface of the packing ring.

Abstract: A cable gland and gasket ring assembly includes a gasket ring and a cable gland formed of a shell, a collar, a packing ring and a connection ring for securing a cable, or, a cable and a flexible conduit, to a junction box. The gasket ring is an annular member, having a first end face, a second end face opposing the first end face, a plurality of annular ribs concentrically arranged on the first end face and an annular convex portion located on the second end face. The connection ring has a stop flange segment, a first connection ring segment extended from one side of the stop flange for holding the gasket ring, an outer thread located on the first connection ring segment for fastening to a junction box, a recessed portion on the stop flange segment for receiving the annular convex portion of the gasket ring and a tapered inner surface located on the inside of the stop flange segment for stopping against a tapered outside surface of the packing ring.

Abstract: A fitting comprises a body with a generally flat first face, a gland with a generally flat second face, and a collet assembly adapted to be squeezed onto the outside of the conduit. A nut surrounds the gland and is adapted to engage the body, to force the first and second faces into sealing engagement with each other and to force the collet assembly into sealing engagement with a conduit and with an internal passage in the gland. When the nut is an advanced position, it engages the body, transmitting an axially compressive force to the first collet and pressing the forward end face of the gland against the rear end face of the body. When the nut is a retracted position, it has its forward end face no farther forward than the plane of the forward end face of the gland.

Abstract: A seal assembly includes a tubular member having a longitudinal axis and a tubular member seal profile. A metal seal ring having a proximal base and a distal end has a seal ring seal profile between the proximal base and distal end that contacts the tubular member seal profile. A distal annular recess is in one of the seal profiles, the distal annular recess being spaced axially from the distal end of the seal ring, defining a seal surface between the distal end of the seal ring and the distal annular recess that engages a seal surface of the tubular member seal profile. The contacting portions of the seal surfaces form a metal-to-metal seal area. A proximal annular recess in one of the seal profiles is spaced axially from the distal annular recess, defining a support area axially spaced from the metal-to-metal seal area.

Abstract: A ferrule for a conduit fitting includes in one embodiment a generally annular body comprising a cylindrical interior wall, a rearward portion with a frusto-conical recess that presents a camming surface, and a tapered outer surface. The tapered outer surface extends radially outwardly from a forward portion of the generally annular body towards the rearward portion, with the rearward portion further comprising an outer wall portion that tapers radially inwardly at an angle ? towards a back end of the annular body.

Abstract: A high pressure seal assembly configured for sealing contact with an opposing surface. The seal assembly comprises an annular seal body with a sealing surface on one side of the seal body. An end of the sealing surface includes a sealing face for sealing contact with the opposing surface. The sealing surface also includes at least one support point that contacts the opposing surface when the seal is placed in sealing contact. Strategically positioning the support point on the sealing surface selectively adjusts the sealing contact stress between the sealing face and the opposing surface.

Abstract: A coupling device for a tube comprising a coupling piece with an insert end for the tube and a sealing organ which is suitable for realizing a seal around the tube inserted in the coupling piece, whereby the sealing organ comprises a series of elements which together form a ring enclosing the tube, and whereby the elements have been provided with at least one grip ring, extending over at least a part of the circumference of the tube, which at least one grip ring is embodied with inwardly and/or outwardly pressed out first projections and second projections extending away from the surface of the grip ring, whereby the first projections and the second projections are provided with, in the plane of these projections extending first anchor teeth and second anchor teeth.

Abstract: A duplex pipe fitting includes a fitting main body 1 and a pair of coupling members 2 which are threaded to both ends of the fitting main body 1. The coupling members 2 are threaded to the fitting main body 1, so that two pipes P are connected to each other with the fitting main body 1. Each coupling member 2 includes a holding portion 24 including a holding surface consisting of a pair of or a plurality of pairs of planes facing each other so that it can be held with a general fastening tool. When a rotational torque for tightening the coupling member 2 to the fitting main body 1 reaches a value indicating the completion of fastening, at least a part of the holding portion including the holding surface is separated and the pipe connecting is complete.

Abstract: A bore seal for connecting and sealing oil and gas tubular members is disclosed which has a metal core manufactured from a high yield strength ferrous material and a protective overlay of corrosion and abrasion resistant stainless steel and/or nickel based alloy. The protective overlay is applied to the entire outer surface of the bore seal by a metal thermal spray process, such as plasma thermal spraying. In a preferred embodiment of the invention, the bore seal has a fishtail profile which facilitates the use of resilient seals to provide resistance to external pressures in addition to the traditional metal-to-metal seal between the bore seal and the tubular members. In an alternative embodiment, a pressure relief valve is disposed within the bore seal to verify the integrity of the metal-to-metal seal with respect to internal bore pressure.

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 pipe coupling (1) includes a pipe-shaped sleeve (2) being provided with a protruding flange (4) at least in one end, said flange having a tapering end face (6). The pipe coupling further including an annular gripping ring (13) divided into ring segments (17), an annular resilient sealing ring (12) provided between the flange (4) and the gripping ring (13), a pressure ring (8) and tightening means of the bolt/nut type (26, 27). The pressure ring (8) is divided into a number of separate, mutually interspaced ring segments (10) each provided with an abutment face (9) adapted to displaceably abut the end face (6) of the flange (4). The bolts (26) extend through elongated, radially extending openings (30) in the flange (4) and through clearance holes (32) in the pressure ring segments (10).

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: A tube fitting with either single or double ferrule swage design common in one system, in one ISO 8434-1 system, being made up of connecting bodies, swaging ferrules and driving nuts, and being a single ferrule design when using one swaging ferrule and being a double ferrule design when using a sealing ferrule and a holding ferrule as the swaging ferrule. The single ferrule tube fitting provides at first a sole smooth-swaged joint for sealing by a sealing cantilever of the ferrule head wedge, and then a depression-swaged joint for fastening by an inner edge of the ferrule head wedge, an operation stopping feel for installation by a ferrule tail wedge, and an isolation of the ferrule head from the tail overdriven motion by an automatic radial outward warp of the middle of the ferrule, resulting in being able both to deliver a definite installation-stopping feel and tolerate any overdrive installation.

Abstract: A coupling includes a coupling housing and a coupling member. The coupling housing consists of a first housing part and a second housing part capable of being screwed together axially. Each of the first housing part and the second housing part has an internal conical surface, wherein, in a position that the first housing part and the second housing part are screwed together, the inner circumference of each of the internal conical surfaces generally lessen towards outward ends thereof, respectively. The coupling member is situated in the housing for clamping a tube inserted in the coupling housing. The coupling member is influenced axially by a conical clamping ring by cooperation with the conical surface in the first housing part and influences a resilient ring which causes sealing between the tube and the second housing part. One end of the coupling member is shaped as axial, flexible fingers separated by splits.

Abstract: A high pressure tube compression fitting/flared fitting for use in combination with a thick-walled tube and a connection body wherein a sleeve is in engagement with a thick-walled tube. The sleeve is generally cylindrically shaped with the exterior thereof coated and then etched. The sleeve includes a first and second sharp inner circumferential biting edges which interengage and bite into and through the exterior of the end portion of the thick-walled tube and into the wall portion of the end portion of the thick-walled tube without narrowing the passageway through the thick-walled tube. The process for making the fitting includes placing an end portion of the thick-walled tube into engagement with a tube engaging surface of a tapered generally cylindrical wall of a guide rod.

Abstract: The invention provides for a metallic cutting ring for a screw connection for sealingly connecting a tube to an attachment part, which metallic cutting ring has a tube abutment section and a cutting section which adjoins the tube abutment section in the axial direction. The cutting section having a stop which points radially outward from the outer periphery of the cutting ring and has a stop face, which runs transversely with respect to the cutting ring longitudinal axil, for the attachment part. The stop for the attachment part has an annular peripheral stop edge which projects beyond the stop face.

Abstract: In connection for high-pressure medium conduits, in which a first conduit (1) includes a connection piece (3) inserted in the interior of a second conduit (2), wherein the connection piece (3) and the second conduit (2) carry cylindrical sealing surfaces (4, 5) cooperating with each other either directly or via an interposed seal (14), the connection piece (3), in the region of at least a portion of its sealing surface (4), is formed with a reduced wall thickness amounting to less than 50% of the wall thickness of the second conduit (2) in the region of its sealing surface (5).

Abstract: A removable pressure sealing assembly for connecting two pipes includes a single piece cylindrical cover placed over a gap between the pipes, the pipes being aligned with each other. Various annular seals are positioned on the pipes to create a sealing mechanism in the gap between the cover and the pipes before the cover is finally positioned over the gap between the ends of the pipes. Once the annular seals are correctly positioned, the cover can be moved over the gap and end piece rings bolted to both the pipes and the cover to secure the assembly in place.

Abstract: Mechanical pipe couplings for joining large diameter pipe elements in end to end relation have arcuate keys which engage circumferential grooves in the pipe elements and radially projecting stiffening ribs aligned with the keys. Key surfaces have angular orientations between 5° and 30°. At the end of the keys on opposite sides are camming surfaces which are formed by a thinning of the key. The camming surfaces may be concave, convex, or angularly oriented surfaces and serve to guide the keys into grooves when the keys are not directly aligned with the grooves.

Abstract: Mechanical pipe couplings for joining pipe elements in end to end relation have arcuate keys which engage circumferential grooves in the pipe elements and radially projecting stiffening ribs aligned with the keys. At the end of the keys on opposite sides are camming surfaces which are formed by a thinning of the key. The camming surfaces may be concave, convex, or angularly oriented surfaces and serve to guide the keys into grooves when the keys are not directly aligned with the grooves.

Abstract: A coupling assembly includes a female coupler selectively interconnected to a male coupler to provide sealing engagement. In one embodiment, the female coupler and the male coupler are secured together by a pressure activated locking assembly which prevents disengagement of the male and female coupling until the internal pressure in the coupling is reduced to a predetermined level.

Abstract: A guide tapered surface 17 of a pipe coupling port 16 has a small diameter portion 17a guiding to a distal end portion 3a of a bite type sleeve 3 to bite into a coupling pipe 5 and a large diameter portion 17b sealing a tapered outer circumferential surface 33 of the bite type sleeve 3 by making close contact with the tapered outer circumferential surface 33 of the bite type sleeve 3. A tilt angle ?1 of the small diameter portion 17a relative to a central axis of the guide tapered surface 17 is greater than a tilt angle ?2 of the large diameter portion 17b relative to the central axis. Therefore, even when a distal end portion of the coupling pipe 5 is not inserted up to an innermost portion of the pipe coupling port 16, excellent sealing performance is obtained in a portion coupled to the coupling pipe.

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: 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 quick coupling (1) comprising a sleeve-shaped coupling body (3) with a receiving opening (4) to receive one end (5) of a pipe (2), a retaining element (7) to hold the end (5) of the pipe in the coupling body (3), a sealing element (8) to seal the pipe (2) against the coupling body (3) and a securing element (9) to secure the connection between the pipe (2) and the coupling body (3), in conjunction with first and second locking ribs (23,24) adjacent to the receiving opening (4) on an external surface (21) of the coupling body (3), which ribs extend outwards in a radial direction and interact with the securing element (9) for the purpose of securing a connection between the pipe (2) and the coupling body (3).

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 compression fitting that obtains a rain tight fit on electrical conduit. The compression fitting includes a tubular body having a threaded forward end for connection to a panel and a threaded rearward end for connection to a conduit. A standard lock nut and seal ring, or, alternately, a snap ring and a seal ring are used on the forward end for obtaining a rain tight fit of the forward end with a panel or junction box. A compression nut, compression ring, and two seal rings are used on the rearward end to secure a conduit thereto in a rain tight fit. A first seal ring is constructed of plastic and includes a V-shaped outer periphery. A second seal ring is typically constructed of a deformable metal such as aluminum and includes a V-shaped inner periphery. The rearward end of the tubular body includes a seat shaped to accept the second seal ring.

Abstract: A pipe joint provided with a joint main body having a male screw portion and a cap nut screwed on the male screw portion of the joint main body. And, the pipe joint has a C-shaped stop ring having an opening on its periphery. The stop ring, having an inner blade to cut a concave groove on a peripheral face of a pipe, is disposed as a peripheral face contacts a tapered inner face of a hole portion of the cap nut. Further, a co-rotation means is provided to rotate the cap nut and the stop ring together.

Abstract: The self energizing tube connector for engaging a pressurizable part made of a tube capable of sustaining pressures up to 50,000 psi without deforming is made of an upstream tube end and a downstream tube end; a ferrule with a front and rear ferrule, a lifting component that engages the front ferrule to cause a upstream seal to form between pressurizable part and tube, and a downstream seal to form between the front ferrule and the tube; and a coupling nut for sliding over the tube and disposed downstream of the rear ferrule for engaging the pressurizable part, wherein the coupling nut is adapted to tighten against the rear ferrule, front ferrule, and lifting mechanism to compress the rear ferrule, front ferrule, and lifting mechanism against the pressurizable part and the tube.

Abstract: A composite metal sealing ring and method are provided for sealing between tubular members. First and second tubular members have first and second conical inner sealing surfaces. A metal sealing ring has corrosion-resistant inlays defining opposing conical outer sealing surfaces for sealing with the first and second conical inner sealing surfaces. The resulting composite sealing ring has the corrosion-resistant benefits of stainless steel at the sealing surfaces, along with the desired expansion ratio of a conventional carbon steel.

Abstract: A fluid fitting assembly for a fluid-tight coupling of a plurality of tube members to a connector member as a unit A RAM device having proximal surface and an opposite distal surface facing toward the connector member, and a plurality of alignment passages each defined by an alignment passage extending from the proximal face to the distal face for sliding receipt of a respective tube member therethrough. A plurality of ferrule devices is also included each having a proximal tube engaging portion, an opposite distal sealing portion and a tube receiving passage extending from the tube engaging portion to the sealing portion and formed for receipt of a respective tube member therethrough.

Abstract: A connector fitting for a threadless conduit and a method of securing such a fitting are provided. The connector fitting includes a connector body, a gland nut, and a continuous metal compression ring. The compression ring includes an annular stop and a pair of end portions. Upon tightening the gland nut, one end portion of the compression ring is urged between the connector body and conduit while the other end of the compression ring is press fit between the gland nut and conduit to form a rain tight seal. One or more indicators are provided for indicating that the gland nut has been properly torqued.

Abstract: There is referred to a sealing arrangement (10, 10?) comprising two armature members (11, 12), which are adapted to receive a sealing ring (13, 13?) between them for sealing off a joint between the armature members (11, 12), and a clamping device (30), which during mounting is adapted to clamp the armature members (11, 12) against each other in a direction towards the intermediate sealing ring (13, 13?), where the sealing ring (13, 13?) has a substantially T-shaped annular cross-section, with a stem (14) extending radially outwards and with a sealing face (15a, 15b) facing radially outwards in each of two sealing wings (15, 16) projecting axially outwards in opposite directions from stem (14) of the T-shape, the sealing wings (15, 16) having mutually equivalent forms and equivalent conical sealing faces (15a, 16a) for forming abutments against their respective conical support faces (21, 25) of each of the armature members (11, 12).

Abstract: A fitting for the connection of a tubing end. The fitting includes a body having a bore with an internally-threaded opening which extends to a seating surface, and a front ferrule which is receivable coaxially over the tubing end. An externally-threaded nut is receivable coaxially over the outer diameter of the tubing end to be positionable thereon rearwardly of the front ferrule such that, with the tubing end and front ferrule being inserted through the bore opening, the nut is threadably engageable with the body urging an outer surface of the ferrule into a canning engagement against the body seating surface. The axial length of the seating surface is provided to extend substantially the entire length of the ferrule outer surface so as to constrain the radial outward expansion of the ferrule rearward end.

Abstract: A pipe coupling device (2) for joining the ends of two pipes is disclosed. The pipe coupling device (2) includes a sleeve (4) configured to receive an end of a pipe and having an annular first abutment surface (6); a compression member (12) having an annular second abutment surface (10); a sealing and gripping assembly (8) for sealing against and gripping the pipe; and threaded fasteners for drawing the compression member (12) and the sleeve (4) axially together so as to compress the sealing and gripping assembly (8) against the pipe. The sealing and gripping assembly (8) includes a sealing member (14) and a gripping device. The gripping device may include an annular carrier (16) having an annular recess for retaining a gripping member (18). The gripping surface of the gripping member (18) and the annular carrier (16) are adapted for relative axial movement wherein the gripping member (18) may be moved into tighter contact with the pipe.

Abstract: A pipe joint for joining a tubular component (1) to a receiving piece (2), the pipe joint comprising a fitting body (3) having a recess (8), a tightening nut (6a) having a first thread (7a), the fitting body having a corresponding thread (4), and a cutting ring (9) being arranged to be pressed between a wedge-like wall portion (10) of the recess, and the tubular component when the tightening nut is tightened. In order that the pipe joint could be tightened to form a leak-proof and strong joint using low torque, which enables the use of small tools applicable in confined spaces, the pipe joint comprises a supplementary nut (6b) having a thread (7c) whose handedness corresponds to that of the first thread (7a) but is smaller, the tightening nut comprising a second thread (7b) corresponding to that of the supplementary nut.

Abstract: Connection elements for interconnecting two duct ends, the elements comprising a tubular connection member for uniting the duct ends, the tubular member comprising at least one pair of half-bodies which is arranged so as to be closed on at least one duct end and which is associated with elements for gripping the duct end when the pair of half-bodies is closed on the duct end, the gripping elements comprising at least one outwardly-directed projection formed by plastic deformation of the duct end in a position set back from an end face of the duct end, and two inner shoulders of at least one of the half-bodies, which shoulders are spaced apart axially so as to receive therebetween the outwardly-directed projection.

Abstract: A subsea tubular joint has a wellhead connector and a wellhead housing positioned in an end-to-end relation and connected by a clamp or coupling. A metal annular seal is sandwiched between the wellhead connector and the wellhead housing. The seal has a ring portion and a rib portion. The rib portion includes first and second rib surfaces. There is a frictional treatment between the first and second rib surfaces of the metal annular seal and the shoulders of the wellhead connector and the wellhead housing. The frictional treatment can be a set of radial grooves or the result of grit blasting on the connector and housing.

Abstract: A paintball gun barrel assembly includes a muzzle and a shank assembly that is self-aligning with respect to the muzzle due to the interaction of complementary angled surfaces. The shank assembly may include a bore tube that removably fits within an insert housing and has a first bore and a first concentric angled surface on an output end thereof. The muzzle has a second bore and a second concentric angled surface on the input end thereof. Mating the insert housing, with the bore tube inside, to the muzzle portion engages the first angled surface with the second angled surface causing the first bore at the output end of the first bore tube to substantially align with the second bore at the input end of the muzzle portion. A plurality of different size bore tubes may be used, each having a different internal bore diameter, but the same outer dimensions.

Abstract: A compression connector for sealingly connecting a fluid line to a plumbing fitting, valve or connector. The connector assembly sealingly retains the tubing within the device to direct flow therethrough. The plumbing fitting includes a seat for matingly receiving the tubing in fluid communication with the interior passageways of the fitting. With the tubing seated in the fitting, a compression ferrule and a compression nut are coaxially mounted to the tubing. The compression ferrule includes wedge-like edges at both the leading and trailing ends thereof. The compression nut has an angled shoulder configured to engage the trailing edge of the ferrule. As the nut is rotated onto the fitting, the angled shoulder deflects the trailing edge of the ferrule radially inwardly into engagement with the tubing. Similarly, the leading edge of the ferrule is deflected radially inwardly into engagement with the tubing. The dual deflection edges create a sealing connection of the tubing within the fitting.

Abstract: Integrated quick connect tubing that includes a quick connect retainer that is integrated as a cuff into corrugated tubing, most preferably corrugated tubing fabricated from a rigid plastic. The quick connect retainer is preferably fabricated from polypropylene and is most preferably spin welded to the interior of a sleeve at one or both ends of the corrugated tubing to attach the quick connect stepped body or retainer to one or both ends of the corrugated tubing.

Abstract: A tube connecting system and apparatus directed to connecting a tube to a cylinder are provided. A system includes a first sleeve, a second sleeve, a radially compressible ring, and a radially compressible tube. The tube fits radially inside of the ring and the first and second sleeves. As the first and second sleeves are coupled and brought closer together, inner surfaces of the sleeves exert a radial force onto the ring, causing it to radially compress onto the tube, which compresses in response. Contact surfaces may be added to one or both of the sleeves for axially compressing the tube.

Abstract: A hydraulic hose assembly is provided for connecting hydraulic components of a bicycle. The hydraulic hose assembly has a flexible hose, a rigid tubular insert, connecting fastener and a tubular bushing. The compression bushing surrounds the flexible hose in order that the connecting fastener can be tightened to compress the bushing into a watertight seal. The compression bushing has an annular recess that is located between a pair of inclined sections. The annular recess is configured to limit the amount of radial expansion of the outer diameter of the bushing when the hydraulic hose assembly is coupled to the bicycle component.

Abstract: A method is provided for rotationally attaching a connection fitting with an opposing surface by screwing the fitting into the opposing surface by threads on an outer surface of the fitting body. The connection fitting is formed by at least one seal manufactured together with the fitting body in an injection molding process to form a multi-component plastic part in which the fitting body is made of a hard plastic component and the seal is made of a soft plastic component, wherein the components are of a kind which do not adhere to one another. The seal is secured in an axial direction on the fitting body in a form-fit manner, but during the rotational attachment step the seal is rotatable relative to the fitting body in a peripheral direction.

Abstract: A micromachined coupler for coupling a capillary having a first size to an orifice having a shape and a second size, has a body which has a shape conforming the shape of the cavity into which the body must fit. A through hole is defined through the body. The through hole has a size conforming to the first size of the capillary. The capillary is disposable into the through hole so that the capillary is communicated to the orifice without the first and second sizes necessarily being the same. The cavity and the body have conforming slanting surfaces, and in particular the cavity and the body define truncated pyramidal shapes. The cavity and the body each have a truncated pyramidal shape. The pyramidal shape may be square, triangular, or conical. A method of fabricating the micromachined coupler is achieved either by micromaching or micromolding.

Abstract: A tubular connection, an example of which is a subsea wellhead having a primary and secondary seal areas allows the use of a backup or contingency gasket for engagement with the secondary seal area in the wellhead should a failure occur in the primary seal area. In the preferred embodiment, the primary and secondary seal areas are sufficiently separated such that the erosion damage which occurs from leakage with the original gasket adjacent the primary seal area, which can spread below the primary seal area, leaves the secondary seal area unaffected. A backup or contingency gasket can be inserted for sealable contact with the secondary sealing area for further well operations.

Abstract: A connection fitting (1), for example a blind plug, valve body, pipe connection piece or the like, with a fitting body (2, 8) and a seal (4) has the form of a multi-component plastic part, in which the two plastic components are plastics that are incompatible with each other, so that the seal (4) can rotate relative to the fitting body (2), in particular when the seal contacts an uneven or fissured opposing surface by which it could be damaged if it continued to be turned when tightening or screwing in the connection fitting (1) relative to this opposing surface.

Abstract: A riser assembly to transmit gas from a buried fluid line to a manifold. Inner (50) and outer (90) casings are received in a first end of an adapter (54). The other end of the adapter (60) is secured to the manifold. A gripping assembly (70) holds the inner casing in the adapter and prevents a pullout while also providing a sealed inner face between the inner casing and the adapter. A mounting assembly is provided to secure the outer casing in the adapter. It, too, prevents pullout of the outer casing and also allows the outer casing to freely rotate relative to the adapter. In selected embodiments the outer casing is formed of a non-corrosive material such as a PVC or polyethelene to address corrosion resistant properties.

Abstract: A connector sleeve (2) has a structure-attachment flange (9) on a flange end, a seal surface (4, 5, 15, 17) on a seal end and a nut-retainer ring (8, 14, 16) intermediate the structure-attachment flange and the seal end of an outside periphery of the connector sleeve. A connector nut (7) is contained rotatably on the outside periphery of the connector sleeve with the nut-retainer ring buttressing a retainer wall that is intermediate a circumferentially pipe-engagement inside periphery and a larger circumferentially straight-threaded inside periphery of the connector nut. Straight inside threading on the inside periphery of the connector nut is matched to straight outside threading of a fluid-controller sleeve (3). The pipe-engagement inside periphery of the connector nut and an inside periphery of the fluid-controller sleeve have slidable clearance of outside peripheral portions of an intended pipe (6).

Abstract: A connection flange, used to fasten a floor register to a precut hole while providing an integral connection means for an air duct fitting.