Abstract: The invention relates to a flange connection for two components, in particular for containers, pipes or the like, with each of the two components having a flange which can be fastened against one another by fastening means and enclose between them a sealing body gripping over the connecting joint between the two components. Each flange, in its end face facing toward the connecting joint, has an annular sealing chamber which widens conically toward the connecting joint and into which a sealing body of annular configuration is positioned. The flanges, when fastened, bear against one another at the end face and together form a sealing chamber which is approximately triangular in cross-section and is virtually completely filled by the sealing body deformed by the fastening.

Abstract: The invention relates to a device for connecting a cylindrical or tubular submersible element to a tubular sleeve, inter alia a submersible heating element to the sleeve of a pressurizer basin, comprising a first flange associated with the sleeve, a second flange associated with the submersible element, a resilient metal joint interposed between the two flanges, two screwthreaded tubular members, one male, the other female, which cooperate with one another via their threads, the threaded male member acting on the first flange via the agency of two half-rings, the female screwthreaded member acting on the second flange, the screwing of the two screwthreaded tubular members causing the compression of the joint.

Abstract: A coupling for forming a sealed engagement with a tubular member, the coupling comprising an annular housing having an engagement zone for receiving a tubular member to be engaged by the coupling, and comprising an engagement assembly positioned within the engagement zone. The engagement assembly comprises an annular gasket for sealing engagement with a tubular member upon axial compression of the engagement assembly. The annular gasket has a plurality of circumferentially spaced bores. A plurality of bolts for axial compression of the engagement assembly, are positioned to extend through the bores. The engagement assembly includes at least one washer for applying axial pressure to the annular gasket during axial compression of the engagement assembly. The engagement assembly further includes a gripping ring to be radially compressed upon axial compression of the engagement assembly to grip a tubular member when positioned in the engagement zone.

Abstract: The pipe coupling is of compression type and comprises a main body having externally threaded portions, a nut and at least one sleeve. The sleeve is formed with a ceramic coating layer on its entire surface.

Abstract: A flange assembly for connecting a pipe to a tank at an access opening through a wall thereof includes an externally threaded cylindrical portion having an internal annular recess, a compressible sealing member received in the recess, a cap threaded into the portion and engaging the sealing member, and a flange portion with a shallow annular recess of greater diameter than that of the access opening which carries an O-ring for sealing between the wall and the flange.

Abstract: A plumbing hookup kit for making water supply connections between any of numerous different fittings such as faucet shanks, toilet tank fill valve shanks, and valve, coupling and adapter compression and slip fittings in 3/8", 7/16" and 1/2" sizes. The kit includes a length of supply tubing with an annular terminal attached to each end, together with a seal ring adapted to encircle each terminal. With smaller fitting sizes, the seal ring and terminal effect a fluid tight connection in cooperation with the fitting and its associated coupling nut. Adaptor sleeves of different sizes and different configurations cooperate with the terminal and seal ring to effect a fluid tight seal with larger fittings and associated coupling nuts of either the compression or slip type.

Abstract: A tube fitting with a one-piece ferrule adapted to shear during assembly into two cutting rings for serial setting of the cutting edges thereof into the tube surface. The rear cutting ring is deformed and guided by the previously set front cutting ring at a preferred cutting angle. Engagement of abutment surfaces on the cutting rings determines a final position for the rings and provides a signal to the assembler that the joint is completed. The undeformed ferrule includes a conical front cutting ring having a cutting edge of one diameter, a cylindrical rear ring having a cutting edge of larger diameter, an external annular groove and an enlarged bore therebelow which in part forms the rear cutting ring and controls deformation thereof. The annular groove is placed to define a shear zone between the cutting rings and the shoulders of the groove are the abutment surfaces for determining completed joint position.

Abstract: A piping suspender with a metal-to-metal seal includes a piping hanger with an annular extension received in a counterbore of a well head and confined by a head adapter. The extension includes upwardly and downwardly facing, generally horizontally disposed shoulders. The upwardly facing shoulder abuts with the lower face of the head adapter and the downwardly facing shoulder abuts with an annular, generally horizontally disposed shoulder on the well head, to sealingly support the piping hanger and connected piping on the well head and to seal the hanger with respect to the adapter. A set of test lines are provided to enable seal testing.

Abstract: A connector assembly for establishing a fluid type connection with a pipe or tube having a body member with a bore for receiving the tube, a nut which is in threaded engagement on the body member and an intermediate ring compressed between the nut and the body member and having inwardly extending edge formations which cut into the tube in order to retain it within the connector, the intermediate ring being provided with radially outwardly extending axial ribs which cooperate with the body member and the nut to prevent unintentional overtightening of the nut. The ribs may have tapered stop faces which engage a tapered bore portion in the nut and a radial or tapered surface adapted to engage with the body member of the connector assembly.

Abstract: A flareless tube fitting having a nose portion defining a sharp biting edge for sealingly retaining a tube end with a body member 11 of the fitting. Vibration forces acting on the tube end outwardly of the fitting are blocked from passing to the biting edge by a rounded support outwardly of the sleeve nose portion. The rounded support is formed by a tilting of a deflectible portion of the ferrule extending outwardly from the deformable ring portion and caused to be tilted so as to urge the ring portion radially inwardly into the tube end by the threaded advance of the nut member on the body member in the makeup of the fitting.

Abstract: A watertight connector for jacketed metal clad armored cable includes cylindrical body member externally threaded at opposite ends and having an enlarged rear bore delineated from the front bore by an annular shoulder, the rear bore having a rearwardly facing conical face intermediate its front and rear ends. An elastomeric bushing has a front portion telescoping the conical face, a flat metal washer engages the bushing rear face and is superimposed by a relatively hard deformable plastic ring. A gland nut engages the body member rear threaded portion and has a conical forwardly facing shoulder bearing on the plastic ring. A grounding collar is located in the forward end of the enlarged bore and engages the annular shoulder and includes forwardly inwardly inclined resilient fingers.

Abstract: Termination apparatus for elongate heaters which have an outer metal sheath and which are designed for use in hazardous environments. The apparatus comprises a junction box within which the heater is terminated and which has an entry port through which the heater enters the junction box. Secured to the entry port is a connection member comprising first and second compression members which surround a heater passing through the entry port and which define between them a chamber. Within the chamber is a grommet which is composed of lead or another deformable metal. The compression members can be drawn together, thus reducing the size of the chamber between them and deforming the grommet into close conformity with the metal sheath of the heater. In this way, if flames are generated within the junction box, they cannot ignite explosive gases surrounding the junction box.

Abstract: A connector for the joining together two fused silica or glass or other types of capillary tubes, in a chromatography system, without detrimental chromatographic effects created by distortion of the two joined capillary tubes, dead volumes or exposure to metal surfaces, or for the butt joining of glass rods, has a pliable elongate surrounding member which sealingly engages a substantial length of each tube or rod from its end as well as supports each and thereby eliminates exposure to a housing or container surface.

Abstract: An extension assembly for a grease gun for coupling to the alemite fitting typically found on the discharge end of such a gun includes a body portion having a grease fitting, a mechanical support positionable thereabout and an extension tube providing a predetermined fixed pathway, and being sealably connected to the body, this extension tube being of a length and shape suitable to a particular job and including a formed application tip, whereof said body portion and extension tube provide a contiguous passageway for grease flow from the fitting to tip.

Abstract: A pipe coupling is disclosed which is capable of being periodically coupled and uncoupled between two lengths of pipe. The pipe coupling includes a first and a second union which are fixed between an intervening length of pipe such that the intervening length of pipe does not have to be of a precision length. The outer periphery of one end of the pipe contains serrations and this end is fixed to the first union by a serrated compression ring and a backnut. By tightening the backnut onto the first union, the compression ring firmly engages the serrations on the pipe and prevents axial movement thereof. The second union includes a non-binding compression ring and a backnut as well as having an internal elongated bore of approximately the same diameter as the outer diameter of the pipe. As the backnut is tightened onto the second union, the compression ring is squeezed about the outer periphery of the pipe and forms a seal therewith.

Abstract: A rotary coupling for connecting tubular members is disclosed including a first tubular base member having external threads and a second tubular member with one end telescopically mounted within the first tubular member. Near the lower end of the second tubular member there is provided an exterior circumferential bead and a bearing member shown as a split ring is provided which encircles the lower end of the tubular member and holds it against relative axial movement. An O-ring seal is also fitted over the second tubular member within the bearing member. A retaining nut encircles the second tubular member and threadably engages the external threads of the first tubular member. When the nut is tightened, the bearing member axially grips the bead, with a lip on the bearing member engaging the bead flexing so that the telescoped members can still rotate relative to each other.

Abstract: In a device for interconnecting respective ends of two conduits a male connecting piece (2) is fixed on the end of one of conduits and provided on its outer periphery with annular ridges (4), while a female connecting piece is fixed to the end of the other conduit and comprises, in succession, as viewed from its end opening, a first cylindrical annular portion (5), a convergent frustoconical portion (6) and a divergent frustoconical portion (7) which is connected to a second cylindrical portion. A spherical ring member (10) slidably mounted on male connecting piece (2) engages the cylindrical portion (5) and the convergent frustoconical portion (6) of female connecting piece (3) and is subjected to a longitudinal force, so as to be locked on male connecting piece (2) under the effect of plastic deformation. This device can be used for connecting large diameter pipes used for transporting high pressure fluids, particularly in submarine installations.

Abstract: A Swivel Joint for use on producing wells which are being pumped, having an upper and a lower annular member, in juxtaposition, with a coil spring separating the members, the lower member having a curved external face to receive, in line contact, the inside wall of the retaining member, which is engaged with the upper member, and having a packing chamber and a packing nut having one end extending into said packing chamber, and a grease chamber in said packing nut, and packing members mounted in said packing chamber compressed by one end of said packing nut.

Abstract: An adjustable pipe union for tubing strings including an outer lower mandrel, an inner upper mandrel threaded along a lower end portion into the outer mandrel, packing between the mandrels, an annular seal chamber between the mandrels, a metal-to-metal seal assembly between the mandrels, and a jam nut threaded into an end portion of the outer mandrel around the inner mandrel against the metal-to-metal seal expanding the seal to lock the members together and seal between the members. A short embodiment of the union permits rotational orientation of tubing string apparatus such as valves. A longer embodiment of the union performs a spacing-out function for fitting a tubing string assembly between longitudinally spaced fixed members such as two packers.

Abstract: A coupling, arranged to form a frictional joint between two mechanical elements, comprising a tubular contact member, arranged to take up a non-deformative frictional contact with an element to be attached by means of a first peripherical surface when force transforming ring having a conical contact surface is moved against a co-acting conical contact surface at the opposed peripherical surface of the contact member by means of a manually operated and linearly movable force applying member, thereby applying a force at one point along said surface of the contact member, said contact member being arranged with such a longitudinal section that the force applied at one point by the force transforming ring is equally distributed along the surface in contact with the member to be attached.

Abstract: The present invention relates to improvements in pipe fittings and in particular to fittings for high pressure fluid pipes, the said fittings of the crimping ring type comprising a rigid body provided with a bore and, at one of its ends, a threaded outer part on which is screwed a rigid nut.The part 3 forming a tight seal cooperates with the gripping part 4 which has several functions: the thin lip 4a is pushed by the seal and comes into close contact with the pipe 5 thereby producing a perfect seal anti-extrusion means, and the conical part 4d locked by tightening determines on the conical part 1d of the body a second perfect seal anti-extrusion means, the face 4e being in resting contact on the face 1b of the body and limiting the tightening of the seal; the rear part of the ring 4 produces the direct clamping of the pipe.The invention finds an application to ensure the reliable tightness of high pressure pipes.

Abstract: A conduit coupling is provided having a body member with an axial bore which is adapted to receive the end of a conduit. A fastening member also includes an axial bore and is adapted to surround the conduit and be secured to the body member. A sleeve having an axial bore is also adapted to surround the conduit and is axially positioned between the fastening member and the body member. The sleeve includes a frangible web for separating the sleeve into a plurality of elements in response to the application of an axially compressive force on the sleeve. Once the sleeve is separated, the plurality of sleeve elements cooperate with the fastening member and the body member to create a mechanically strong fluid-tight joint between the body member and the conduit.

Abstract: A flareless tube coupling having screwed together body and nut members provided with oppositely tapered cam surfaces operative upon screwing together of the body and nut members to contract a tapered C-shaped grip ring within the nut cam surface into gripping engagement with a tube therewithin and to urge the axially inner end of a thin tubular sleeve into sealed engagement with the body cam surface and into gripping and sealing engagement with the tube, the large end of the grip ring having a plane end surface in engagement with the plane end surface of a radially enlarged collar at the axially outer end of the sleeve.

Abstract: A two-piece compression fitting comprises a driving screw and a symmetrical sleeve adapted to be pre-assembled to a threaded receptacle for later connection of coupling tubing. One end of the driving screw is provided with a thin-wall extension for accepting a central cylindrical portion of the sleeve in a press-fit manner so as to provide and maintain co-axial alignment of the inner bores of the screw and sleeve whereby the coupling tubing can be easily inserted therethrough.

Abstract: A coupling, arranged to form a frictional joint between two mechanical elements, comprising of a tubular contact member, arranged to take up a non-deformative frictional contact with an element to be attached by means of a first peripherical surface when a mainly plane spring ring, extending from the opposed peripherical surface mainly perpedicularly to the length axis of the element to be attached, is twisted or tilted by means of a manually operated force applying member to an inclined relationship to said length axis, said tubular contact member having a longitudinal section causing the applied force from the spring ring to be equally distributed over the contact surface with the element to be attached.

Abstract: A sealing assembly for sealing the annulus between a wellhead and a casing hanger in which the assembly includes a recess for receiving a sealing element in which the recess includes a tapered surface and a tapered seat for coacting with a seal for setting the seal with a small setting force. A resilient sealing element is positioned in the recess and tapers downwardly and outwardly at a lower end. The sealing element is compressed in the recess to form a seal requiring only a low seating load and unseats with a low unseating load. An expandable metal ring is positioned in the lower outside portion of the sealing element to reduce extrusion of the element when set. A non-extrusive protective covering is positioned around the top, the outside and the outer portion of the bottom of the sealing element to protect it as it moves downhole in a well. Various seal modifications provide wedge actuated lip seals to increase the sealing area.

Abstract: A fitting for connecting a metal conduit to a conventional 37.degree. flared adapter which does not require flaring of the conduit, and constitutes a compression type fitting utilizing a radially contractable ferrule and compression nut. Metal-to-metal sealing contact is achieved, and no modification of the conduit is required.

Abstract: A coupling for unflared tubes comprising a body with a nut threadably connected thereto so as to form a chamber therebetween, a deformable gripping and sealing sleeve in the chamber and being undeformed when the nut and body are partially threaded together so that an unflared tube may be inserted into the nut, body and sleeve to a position where it may be gripped and sealed by the sleeve upon deformation of the latter by further threading of the nut upon the body. The nut has mounted therein a ring of flexible spring metal slotted so as to form fingers whose radially inner ends are initially on a diameter smaller than the outside diameter of the tube and bendable by insertion of the tube therethrough while the sleeve is undeformed so as to grip the tube by spring action to prevent withdrawal of the tube, as by gravity, and thus to hold the same in its proper position for being gripped by the deformable sleeve upon final tightening of the nut upon the body.

Abstract: The invention provides a fluid tight coupling for securing the spout of fuel dispensing nozzles to the nozzle body and utilizes a metallic annular gland mounted on the upstream end of the spout and positioned thereon by the engagement of a knurled band on the spout with its inner surface by mechanical expansion of the spout, the gland being outwardly shaped and positioned on the spout to be tightly engaged and compressed between tapered surfaces and the body outlet nipple rim and the spout securing clamp nut, with the downstream portion of the gland compressed thereby into tight sealing engagement with a smooth surface portion of the spout to effect a tight fluid seal.

Abstract: A tube fitting for a large diameter tube comprises a coupling body having a bore, a counterbore adapted to receive such tube, and a rearwardly opening generally frusto-conical camming mouth adapted to surround the tube when inserted in the coupling body. A front and back ferrule are provided which are adapted to be snugly received upon the tube. The front ferrule is defined by a nose portion adapted to engage the camming mouth. The rearward end of the front ferrule is provided with a camming mouth adapted to be engaged by a nose portion of the back ferrule. The rearward end of the back ferrule is provided with a back face adapted to be engaged by a complementary surface of a coupling nut which is threadedly engaged with the coupling body.

Abstract: A coupling for unflared tubes comprising a body with a nut threadably connected thereto so as to form a chamber therebetween, a deformable gripping and sealing sleeve in the chamber and being undeformed when the nut and body are partially threaded together so that an unflared tube may be inserted into the nut, body and sleeve to a position where it may be gripped and sealed by the sleeve upon deformation of the latter by further threading of the nut upon the body. The nut has mounted therein a ring of flexible spring metal slotted so as to form fingers whose radially inner ends are initially on a diameter smaller than the outside diameter of the tube and bendable by insertion of the tube therethrough while the sleeve is undeformed so as to grip the tube by spring action to prevent withdrawal of the tube, as by gravity, and thus to hold the same in its proper position for being gripped by the deformable sleeve upon final tightening of the nut upon the body.

Abstract: A coupling for smooth pipe includes a housing, a sleeve nut threaded onto the housing, a gasket inside the housing and a thrust and locking ring structure within and between the housing and sleeve nut. The housing has a tapered inner surface to compress the gasket. When the nut is threaded onto the housing, the ring structure is axially moved by a shoulder on the nut to compress the gasket. The nut then radially deforms tongues on the locking ring structure to grip the pipe.

Abstract: A one-piece nut and sleeve coupling element is provided with an improved frangible connector for effective and reliable shearing of the sleeve member. An interior shear groove is flanked by exterior shear grooves to define a pair of break point webs, one web becoming thinner as the other web is widened upon axial displacement of the interior shear groove from a preselected placement. A shearable break point web is therefore assured when making up a tube fitting utilizing such a one-piece nut and sleeve coupling element.

Abstract: A compression fitting for use with tubular conduits wherein the fitting includes means for retaining the desired positioning of the conduit or tube within the fitting prior to completion of the making of the joint by the tightening of the compression nut. The tube retaining means disclosed take the form of two embodiments. One of the tube retainers is in the form of gripping means which engage the tube when initially inserted into the fitting to prevent partial axial withdrawal of the tube prior to completion of the joint. Spring biased edges embed into the tube exterior surface preventing inadvertent axial displacement of the tube prior to axial forces being imposed upon the tube during completion of the joint. The second type of tube retention utilizes a plurality of serrations engaging the end of the tube which embed into the tube end and retain the tube against rotation relative to the fitting during tightening of the compression nut.

Abstract: A vapor-proof connector on a metal electrical conduit includes an externally threaded tubular body engaging the end of the conduit and a gland nut spaced inwardly of and engaging the tubular body. The gland nut has an inwardly directed peripheral flange with a tapered inside face confronting a tapered end face of the body to delineate an annular space which surrounds the conduit and houses a channel-shaped split metal ring having inwardly directed diverging flanges and a wedge-shaped deformable gland ring arranged end to end so that tightening of the gland nut compresses the gland ring between the metal ring and the body or nut to radially compress the inside face of the gland ring and cause the split ring to bite and anchor to the conduit. Alternatively, the gland ring may be encircled by the split ring. The ends of the split ring may have opposing reduced width tongues extending therefrom.

Abstract: A seal assembly is adapted to provide a seal between a body member and an object, having a cylindrical outer surface, arranged to penetrate an opening provided through the body member. The seal assembly includes a lead ferrule having a frusto-conical first surface adapted to engage a body member circular shoulder edge, and having a frusto-conical second surface; an intermediate follower having one circular edge adapted to engage the lead ferrule second surface; a rear ferrule having a frusto-conical third surface adapted to engage another circular edge of the intermediate follower; and a compression cap adapted to exert a longitudinal force on the rear ferrule. When the compression cap is tightened, the seal assembly sequentially provides three longitudinally-spaced seal zones, and a seal between the body member and the object.

Abstract: A pipe joint assembly comprising, in combination, a pipe to be coupled having at a predetermined outer position spaced from its end a rolled circular groove of a preselected depth, said groove having a semicircular cross-section, a sleeve and a fastener mounted on said pipe, a seamless circular packing disposed in said groove, said packing having a circular cross-section, said sleeve having a rear end face of a given circular width which is adapted to make face-to-face contact with said packing, a body having a tapered inner surface, the diameter of which decreases in the rearward direction, said body receiving the end portion of the pipe, the forward or entrance diameter of said tapered inner surface being slightly larger than the outer diameter of said sleeve, said body and said fastener provided with means for connecting with each other, whereby, when said fastener is fastened on said body, said sleeve is reduced by the tapered inner surface of said body to securely contact said pipe and the rear end face

Abstract: An adapter for releasably coupling two tubular elements comprises a socket, a sleeve nut threadedly engaging the socket and an elastically deformable sleeve inserted in the sleeve nut. The socket consists of a smaller diameter and a larger diameter part, and the sleeve nut has an inner thread in threaded engagement with an outer thread on the larger diameter socket part. The axial length of the sleeve nut exceeds that of the larger diameter socket part, the inner thread is arranged at one sleeve nut end and an inwardly extending flange is at the opposite sleeve nut end. The sleeve is inserted in the sleeve nut between axially spaced shoulders formed by the flange and the larger diameter socket part. The outer diameter of the sleeve is slightly smaller than the inner diameter of the sleeve nut, the periphery of the sleeve defines a circumferentially extending trough-shaped recess, and the sleeve has a cylindrical inner wall.

Abstract: In a connecting device for connecting chromatographic separating columns of glass to terminal fittings on a chromatographic apparatus, each end of the column is surrounded by a metallic sleeve. A sleeve made of synthetic plastic material, which is of substantially stable shape at least up to a temperature of 350.degree. centigrade even if subjected to pressure, is interposed between said end and said metallic sleeve. A preferred material is polyimide. The plastic sleeve has at least one conical end face and is held in sealing engagement with the end of the separating column, on one hand, and with the metallic sleeve, on the other hand, by a sleeve shaped thrust member, which is axially movable relative to the metallic sleeve to exert an axial force on said plastic sleeve. A radial sealing force is exerted on the snthetic plastic sleeve through its conical end face by an abutting complementary conical surface.

Abstract: A locking and nonseal pipe joint device which is comprised of a flanged holder having an external thread and adapted at its one end to be secured to a base body and at its opposite end to hold an end of the pipe, an intermediate packing member for sealing and locking the joint and a locking member having an internal thread and adapted to be screwed onto the flanged body through the intermediate packing member. The intermediate packing member is compressed against a circumference of the pipe in accordance with the screwing operation of the locking member.

Abstract: A tube coupling joint comprising a tube having an enlarged end, a body having a bore to receive the tube end and having a cam surface leading to the bore, a sleeve having an inner end with a transverse shoulder contracted to a diameter less than the tube diameter with the sleeve shoulder embedded within the tube adjacent the expanded portion of the tube, and a nut holding the sleeve into engagement with the cam surface whereby the cam surface maintains the sleeve shoulder in its embedded position.

Abstract: In a connecting device for connecting chromatographic separating columns of glass to terminal fittings on a chromatographic apparatus, each end of the column is surrounded by a metallic sleeve. A sleeve made of synthetic plastic material, which is of substantially stable shape at least up to a temperature of 350.degree.C. even if subjected to pressure, is interposed between said end and said metallic sleeve. A preferred material is polyimide. The plastic sleeve has at least one conical end face and is held in sealing engagement with the end of the separating column, on one hand, and with the metallic sleeve, on the other hand, by a sleeve shaped thrust member, which is axially movable relative to the metallic sleeve to exert an axial force on said plastic sleeve. A radial sealing force is exerted on the synthetic plastic sleeve through its conical end face by an abutting complementary conical surface.