Abstract: The invention relates to a segment for a sealing arrangement, wherein a plurality of such segments can be attached to the circumference of a sealing ring for centering the sealing arrangement while the latter is installed between two flanges. Each segment comprises a curved centering flank, a further flank serving as a point of attack for a rotating mechanism, and a third flank for attachment of the segment to the sealing ring. The segment is provided as a one-pieced unit of a relatively small size. The segments can be mounted irrespective of the nominal pressure and the nominal diameter. This allows for an inexpensive manufacture of the sealing arrangement. Various embodiments of segments are described.

Abstract: A pipe joint is comprised of a joint base member having an opening for a fluid conduit, a flange member fixed with the joint base member and a metal pipe having a first enlarged portion inserted into the opening, a second enlarged portion placed in an installation bore of the flange and a bulging portion pressed against a second end surface of the flange member. The bulging portion is formed by making the outer surface of the pipe swell at the same time when the pipe is inserted into the installation bore and enlarged by a enlargement punch to form the second enlarged portion.

Abstract: A tubing coupler for mechanically and fluidly connecting two pieces of tubing. The tubing coupler has a first body portion with a pilot and a second body portion with a cavity in which the pilot is disposed when the tubing coupler is assembled. A fluid passageway through the first body portion and the pilot of the first body portion is in fluid communication with a fluid passageway through the second body portion and the cavity of the second body portion. Thus fluid flow is allowed through the coupler. A primary sealing device circumscribes the pilot of the first body portion and seals the space between the pilot of the first body portion and the cavity of the second body portion. A plate is disposed between the first body portion and the second body portion and defines an opening through itself through which the pilot of the first body portion protrudes. A secondary sealing device is disposed inside the periphery of the opening in the plate and surrounds a portion of the pilot.

Abstract: A pipe connector system for connecting stub end pipe particularly thermoplastic pipe, the pipe connector system using a common engagement ring and either a flange connector system or a shell-type coupling connector system to interconnect two segments of stub end pipe or to connect stub end pipe to a pipe fitting, the alternate connector systems allowing flexibility and versatility depending on the situation, the common engagement ring being formed as either a full ring or split ring, the split ring permitting the connector system to be utilized when the pipe has a stub end pre-installed.

Abstract: A flange system for the butt fastening of two pipes (2, 3), for example, the gas outlet pipe and the nozzle of a turboengine, the flange (5) of one of the pipes (2) having a triangular cross section. There are provided on the flange (9) of the other pipe (3) protuberances (12) which cooperate with cuneiform wedges (15) in order to form a system of jaws pressing the flange (5) of triangular cross section between them.

Abstract: A joint comprising a main seal, a secondary seal and an external pressure test port providing access to a cavity between the main seal and the secondary seal wherein the integrity of the main seal can be tested in its in-service direction by applying pressure to the cavity via the pressure test port such that the cavity is pressurised and the main seal is tested. Following testing of the main seal, the secondary seal may become redundant during normal use of the joint. In some embodiments, however, the integrity of the main seal can be retested at any time due to the reusability of the secondary seal.

Abstract: A mounting adaptor for coupling a gas pressure regulator outlet to a gas meter inlet includes a plate having through-bores alignable with internally threaded blind holes which surround the meter inlet in the meter wall. The plate has a planar surface surrounding the outlet opening of the regulator and is adapted for contact engagement with a planar surface on the meter exterior wall surrounding the inlet opening. A groove in the planar surface of the plate holds a sealing ring to effect a seal. In an alternate construction, a tube extends from the plate into the meter inlet opening and an annular groove on the tube exterior holds a sealing ring for engagement with a cylindrical wall extending into the meter from the inlet opening.

Abstract: The connection element (1) is preferably provided with two retaining collars (5, 5′) which enclose the connection sections (2, 2′) which do the holding together. The retaining collars are releasably connected to one another or held against one another by way of fastening elements, preferably screw bolts (6). Each retaining collar consists of at least two segments (9a, 9b). With this the fastening elements have additionally also still the function of holding together the two segments. For releasing the connection at least one of the segments can be pivoted open.

Abstract: Flat gasket ring, in particular for producing a flange connection between moldings, the flat gasket ring having, along its outer circumferential line, lip structures which are intended for accommodating the gasket ring in a positively locking manner in relation to moldings.

Abstract: The invention relates to the sealing of detachable joints of the pipelines and manifolds by using metal elastic gaskets. A detachable stationary sealing device comprises the flanges having sealing surfaces, being tapered for one of the flanges and concave for another, a sealing gasket and a retaining releasing ring. The gasket is provided with elastic tabs being in contact with the sealing surfaces of the flanges, and an annular projection, the inner cylindrical surface of which is in contact with the outer cylindrical surface. The retaining releasing ring is of C-shaped cross-section and is fixed in the annular groove made on said cylindrical surface of the flange. The annular projection of the gasket is provided with the transversal external projection that fits into the groove of the retaining ring. The use of the invention reduces dimensions while increasing its reliability.

Abstract: A threaded pipe flange and piping system utilizing the same. The threaded pipe flange includes a base portion having a predetermined shape and at least two openings dimensioned to accept at least two mounting bolts. A shoulder portion extends from, and is integral to, the base portion and includes at least two substantially flat gripping surfaces that allow the flange to be attached using an open end wrench, adjustable wrench or pipe wrench. A threaded opening extends through the base portion and the shoulder portion and is sized to mate with the threaded pipe to which the flange is to be attached. In operation, the pipe flange is attached to the predetermined threaded pipe by aligning the threaded opening with the predetermined threaded pipe, gripping the gripping surfaces of the shoulder portion, and rotating the pipe flange until the flange is tight.

Abstract: In order, in a particularly simple way, to allow multiple separation and connection of line sections of a line, through which a hot and highly compressed medium flows, in particular a pipeline, through which steam flows, there is provided a double-walled flanged connection. The double-walled flange connection is formed of an outer flange and an inner flange, between which an interspace, through which a cooling medium is capable of flowing, is formed. The apparatus is particularly suitable for the connection of line sections of a steam turbine.

Abstract: A device on a conduit end for joining the conduit (1) to a coupling (4) or some other receiver of the end of the conduit, which is made of aluminium or an aluminium alloy. Two external annular beads (2, 2′) are pressed out from the conduit wall on the conduit end and accommodate between themselves an O ring (3). In an arrangement for joining, the receiver (4) has a conical inlet and means, which together with the rear annular bead (2) form engaging means for a tightening means.

Abstract: Tubular structures are described which are composed of multiple layers of reinforced material. The structures include at least one terminal end portion which includes one or more wedges between adjacent layers of reinforced material. The structures may be, for example, hoses, expansion joints, or actuators (e.g., air springs). The terminal end portions can be readily clamped together to make appropriate connections, or a terminal end portion can be clamped to a desired mounting surface.

Abstract: An engagement device for a cantilevered conduit connection that provides an assembler with visible, audible, and tactile redundant verification that the connection is completely engaged. The engagement device assists in holding a connecting block in place to a housing. The housing includes a fastener port with a fastener fastened therein. The engagement device includes a locking portion at one end thereof, and circumscribes a portion of the fastener. The connecting block mounts to the housing and includes a fastener passage through the connecting block that mounts around the engagement device. The connecting block further includes an engagement surface that mates with the locking portion of the engagement device to assist in fastening the connecting block to the housing. The locking portion of the engagement device expands against the engagement surface of the connecting block to provide visible, audible, and tactile verification that the connecting block is completely engaged to the housing.

Abstract: A flange assembly for a pipe coupling is disclosed which includes a flange body (12) which has an outer periphery (14) and an inner periphery (16) which defines a central opening (18). Holes (20) are arranged in the body (12). A rubber gasket (26) is adhered to one side of the flange body (12) and has an inner periphery which projects into the central opening (18) so that when a sleeve (56) of a coupling member (54) is inserted into the central opening (18), the rubber gasket (26) is deformed inwardly into the opening (18) and spaces the sleeve (54) from the flange body (12).

Abstract: The assembly of a connection that uses cooperating grooved surfaces to provide an easily disassembled and assembled connection is improved by a tool that clamps separate brackets onto the two ends of the pipe connection and radially and axially aligns pipe ends as a bolt draws the two brackets together. Drawing the brackets together causes contact between alignment surfaces that provide radial and axial alignment of the separate connection halves for installation of pipe connection links. No additional clamping means is needed to provide any necessary force to keep the connector faces of the connection ends sufficiently close together for placement of the links and the addition of the locking ring or other retaining means. The tool prevents disengagement of the link members from engagement with the grooves on either connection end before the locking sleeve is placed over the links. The tool also provides a recess for retaining the locking ring until needed for holding the links in place.

Abstract: A a quick acting closure has two flanges. One of the two flanges has a groove for a flexible seal and the other has spaced cogs. The goal is to provide a quick acting closure in such a form that it can be used for the connection/closure of boiler or pipeline elements which can either have a round or a non-round cross section. In accordance with the invention, the two flanges are therefore connected to each other by individual clamps which are arranged at the circumference of the flanges and the number of which is equal to the number and the spacing of the cogs in the flange whereby the clamps are connected to each other two sheet rings, i.e. one lower and one upper sheet ring.

Abstract: A tubular coupling assembly is disclosed which includes a pair of identical coupling members secured together by a splined stud. A sleeve member is inserted between the identical members to provide a leak free fluid pathway between the coupling members.

Abstract: A connector 30 is integrated in a hermetic compressor 10. A flange block 48 is secured on the connector 30 by a screw 62. The connector 30 and the flange block 48 have through-holes 38 and 50, respectively, and a tube 54 is inserted into through-hole 50. A flange 58 is integrally formed in a peripheral surface of one end portion of the tube 54. Also, an elastic ring 60 is fitted near the flange 58. The flange 58 and the elastic ring 60 are positioned in enlarged diameter portions 40 and 42 formed in the connector 30 so that the ring 60 seals against the tube 54 and the connector 30. With this arrangement, simply by tightening the screw using a screwdriver, the tube can be securely connected with the container.

Abstract: A vibration decoupling exhaust connector is provided having a flange for mounting the connector to a flange or housing surface of an exhaust system component, such as an exhaust manifold of an internal combustion engine. A liner tube is resiliently supported in the flange, by a vibration damping resilient metal mesh ring. A bellows is sealingly connected to the liner tube and the flange, in order to provide flexible sealing of the connector, for substantially precluding escape of exhaust gases from the joint when the connector is in place.

Abstract: A backup ring for a pipe joint restraint includes a continuous one piece ring member or opposed ring segments, both including multiple inside radii to provide a portion of the ring which may be secured to a pipe fitting and a portion of the ring which is adapted to provide clearance for reinforced areas of a pipe fitting, such as a fillet reinforcement at a branch portion of a tee fitting. The ring embodiments with multiple ring segments include opposed radially projecting ears with fastener receiving bores and radially projecting lugs adapted to provide for connecting the ring assembly to a second ring assembly or gland clamped to the pipe section which is to be restrained in connection with the pipe fitting to which the backup ring assembly is clamped. The circumferential extent of the ring segments is preferably less than 180.degree. to accommodate a range of pipe fitting diameters with a single size ring segment.

Abstract: A threadless coupler for connecting two large pipes in line and a third, relatively small pipe to form a Tee. The coupler has a clamp for engaging a male groove formed in each large pipe, the small pipe being connected by threading. The clamp comprises a collar surrounding the retained pipe. The clamp connects to the coupler by threaded fasteners. The coupler has two internal elastic seals which close over their respective large pipes. The clamp may be an annular collar which must be slipped over a pipe prior to forming the male groove, or two complementing sections which may be placed over the pipe after forming the groove. The coupler and pipes are all fabricated from non-malleable materials.

Abstract: A swivel flange seal joint assembly which includes a tube having an integral, enlarged ferrule and swivel flange is described. The ferrule is enlarged and includes oversized fastener openings configured to allow circumferential alignment between the swivel flange and openings in a mating surface. The assembly also includes a gasket having openings, and the gasket is positioned between the ferrule and the mating surface so that a seal is formed between when the fasteners which extend through the flange, ferrule, gasket and mating surface openings are tightened.

Abstract: A tapping sleeve assembly for direct connection to a gate valve. The assembly includes a tapping sleeve attached to a main pipe. An outlet conduit formed integrally with and extend outwardly from the tapping sleeve terminates in a distal end outlet. A retaining ring is attached to the outer surface of the outlet conduit and is located between the tapping sleeve and the distal end outlet. Opposed, longitudinally facing annular surfaces are formed on the retaining ring with one of the annular surfaces facing the tapping sleeve and the other facing the distal end outlet. The annular surface facing the tapping sleeve is inclined. A gland telescopes over the outlet conduit. The gland has a collar with an annular surface engaged with an annular surface of the retaining ring. A gate valve has a socket facing the outlet conduit, a gasket is positioned in the socket and a mechanical joint flange surrounds the socket. Bolts and nuts attach the gland to the mechanical joint flange of the gate valve.

Abstract: To produce a flanged pipe unit, a separate flange is put on a pipe and then the pipe is subjected to a punching to achieve an interlocked connection between the flange and the pipe. The flanged pipe unit produced by the method of the invention comprises a metal pipe including a larger expanded portion, a smaller expanded portion and a raised portion which are axially aligned so that the smaller expanded portion is placed between the larger expanded portion and the raised portion; and a metal flange having a through bore through which the pipe passes, the through bore including a larger diameter portion, a smaller diameter portion and a tapered end portion which are axially aligned so that the smaller diameter portion is placed between the larger diameter portion and the tapered end portion.

Abstract: A connector for connecting tubes or the like includes at least one main body with a connecting surface arranged thereon for the connection or flange-mounting of tubes wherein the at least one main body includes or consists of a cross-linked plastic material.

Abstract: An exhaust repair kit, including methods of manufacture and use thereof, in mounting a damaged pipe end to a flanged pipe end in a vehicle exhaust system comprising a length of tubing having a first portion and a second portion. The first portion being sized for engagement with the damaged pipe end. A replacement flange engages the second portion through a replacement flange aperture. The replacement flange aperture is of a sufficient diameter to allow the replacement flange to be freely movable axially and circumferentially about the second portion and enables the replacement flange to universally engage a variety of flanged pipe ends. Securing means for securing the first portion to the damaged pipe end. Locating means for locating the replacement flange about the second portion, said replacement flange being freely movable thereabout the second portion.

Abstract: A collet-type pipe coupling of simplified construction includes three main flange parts and a grip structure. The main flange parts are machined or otherwise formed with plain shapes. One flange is welded to an associated length of pipe or other body and all of the flanges are assembled over a separate length of pipe. A first set of bolts is tightened to compress a packing carried in the welded flange with an intermediate flange. A second set of bolts draws a flange collar towards the intermediate flange to constrict the grip structure radially into locking engagement with the separate length of pipe to complete a coupling installation.

Abstract: In a housing formed in a drain pipe joint, a lock receiving portion on the near end face, an internal thread portion and a taper portion are formed. Also, in a screw ring, lugs are formed in six locations and a external thread is formed, both around the circumference of the screw ring, a flat face portion is formed perpendicular to the axial direction of the screw ring, and hexagonal sockets and internal threads are formed parallel to the axial direction of the screw ring. Then, the screw ring is secured on the drain pipe joint by fitting a tool such as a spanner to flat face portions formed in the lugs, or by fitting a hexagonal bar spanner or the like to the hexagonal sockets, so that the drain pipe and the drain pipe joint can be connected. Further, stopper screws are screwed onto the internal threads formed in the lugs, whereupon the tips of the stopper screws push the surface of the lock receiving portion formed in the drain pipe joint, securing the drain pipe joint and screw ring.

Abstract: A connection of steel pipes for conveying solid materials, particularly for conveying gravel, includes radially directed coupling flanges which extend circumferentially at the ends of the steel pipes. The coupling flanges have receiving bores for the coupling bolts, wherein the receiving bores extend parallel to the longitudinal axes of the steel pipes and are arranged on a pitch circle. At least one wear ring is inserted between the end faces of the steel pipes which face each other. The wear ring is of a material which has a greater resistance to wear than the material of the steel pipes.

Abstract: The present invention involves a pipe flange internally fitted with a lining. The pipe flange has a face with an annular groove extending outward from the inside surface along at least a portion of the face. The groove may be tapered becoming deeper as it travels outward from the inside surface. The lining extrudes into the annular groove partially filling the groove and protruding beyond the face of the flange. The unfilled portion of the annular groove forms an expansion cavity into which the lining can extend when the lining is mated to another object using compressive force. The present invention also provides a pipe flange connection where the face of the internally lined pipe flange is mated to another object using compressive force. The present invention also provides a method of applying an elastomeric lining inside a pipe flange. The method involves affixing a mold to the face of a flange having an annular groove.

Abstract: An adapter for connecting a plastic pipe system to a metallic pipe system; including an elongated, plastic sleeve having a first end thereof adapted to be joined to a plastic pipe system and a second end thereof adapted to be joined to a metallic pipe system wherein said second end has a flange formed as an integral part of said plastic sleeve. A gland means is used to attach the plastic sleeve to the metallic pipe system wherein the gland means is adapted to exert longitudinal pressure on said flange. The invention provides pressure sealing and restraint against axial pull-out that would result in the loss of the pressure seal.

Abstract: A connection between a building component in the form of a pipe, a mounting part, a housing or the like and a pipe-shaped line element of metal. The building component has an essentially radially extending, ring-shaped contact surface, against which a ring-shaped collar arranged on the line element is tensioned by fastening means that grip behind the collar. In the region between its inside and outside diameter, the collar has at least one axial thickening that extends ring-shaped around the axis for the line element, and that the thickening is produced by axially compressing at least one radially outward extending and at least one radially inward extending annular undulation, arranged adjacent in axial direction, of the wall that forms the collar.

Abstract: A bell and spigot slip-joint assembly comprises: a spigot having an end and a circumferential flange ring integral with the spigot and which radially and outwardly extends from the spigot, the flange ring being spaced from the spigot end to define a spigot end portion extending between the flange ring and the spigot end; a tubular member having an enlarged bell end for receiving therein the spigot end portion; a gasket ring tightly received between the exterior surface of the spigot end portion and the interior surface of the bell end; a first restraint ring positioned around the spigot on the side of the flange ring opposite the spigot end portion and contacting or closely adjacent to the flange ring, the first restraint ring having an inside diameter less than the outside diameter of the flange ring; a second restraint ring positioned around the tubular member contacting or closely adjacent to the bell end and having an inside diameter less than the outside diameter of the bell end; and connecting means for

Abstract: An improved device and method for plumbing a recirculating water pump into a hot water heating system, the water pump having a pair of connecting flanges on the inflow and outflow sides of the pump. The present invention includes a section of copper tubing which has one end flared, the flare preferably being at approximately right angles to the longitudinal axis of the tubing. Further, an installation flange is provided having a central hole and an inside face to be positioned against a corresponding face of a connecting flange of the recirculating water pump, the copper tubing being inserted through the central hole of the installation flange with the flared end positioned against the inside face of the installation flange. A flexible gasket, having a central opening, being positioned between the installation flange and the connecting flange of the recirculating pump. The installation flange and flexible gasket being connected to the connecting flange of the recirculating pump with bolts.

Abstract: The invention relates to a vacuumtight connection between an (inner) channel (3) opening into the surface of the housing (2) of an appliance, pump or the like, the opening (4) of which is fitted with a sealing surface (5), and an (outer) line (6) having a flange (7) with a sealing surface (8) at the end to be connected to the channel (4); in order to make the connection compact and user-friendly, it is proposed that sealing surface (5) on the housing side and surrounding the opening (4) of the channel (3) be in the region of the housing surface and that, for the vacuumtight connection joint between the flange (7) of the outer line (6) and the housing surface, a securing plate (10) be used which lies on the edge of the flange (7) away from the housing (2) once the connection has been made. (drawing FIG.

Abstract: An adapter for connecting a plastic pipe system to a metallic pipe system; including an elongated, plastic sleeve having a first end thereof adapted to be joined to a plastic pipe system and a second end thereof adapted to be joined to a metallic pipe system wherein said second end has a flange formed as an integral part of said plastic sleeve. A gland means is used to attach the plastic sleeve to the metallic pipe system wherein the gland means is adapted to exert longitudinal pressure on said flange. The invention provides pressure sealing and restraint against axial pull-out that would result in the loss of the pressure seal.

Abstract: A variable radial orientation pipe MJ connector for engagement with a pair of bell end fittings. The MJ connector includes a tubular sleeve having opposed open ends. A pair of flanges are integral with the sleeve, each flange extending radially outward from the sleeve. Each flange is spaced inwardly from an open end. A shoulder extends axially from each flange to abut a circular gasket. A plurality of axially aligned arcuate slots in each flange receive fasteners therethrough whereby the radial orientation of the connector to the bell end fittings may be selected.

Abstract: The invention comprises a non-weld coupling and method adapted to connect two conduits. The conduits may be pipes, hoses, valves or the like and may be cylindrical, rectangular or the like, in shape. The first embodiment relates to conduits where there may be a degree of misalignment therebetween and which the coupling is adapted to accommodate. In this first embodiment, the coupling comprises a seal flange, seal block and seal ring. The flange, block and ring have mating surfaces defining a radius of curvature which permit the components to be pivoted and rotated relative to the pipe while still maintaining a fluid or air tight fit therebetween. The second embodiment relates to the coupling of two conduit segments in substantial alignment.

Abstract: FIG. 2A shows an alignment and sealing arrangement for connecting two non-gender opposed conduit parts (20) and (20'). Seal (22) is captured by two opposed seal protrusions (20C) and (20C') residing on conduit part's end. Bore (18A) of alignment element (18) closely receives opposed alignment protrusions located on conduit parts' end. The alignment protrusions are substantially referenced to their respective passageways. Axial force is applied to displace opposed conduit parts toward one another to cause seal protrusions to compress seal, drawing conduit parts' passageways (20E) and (20E') into an aligned relation, and reducing adjacent mating faces into approximate flush relation with one intersection (30). This coupling has one seal removed from direct contact with media, eliminates any appreciable media entrapment space, and desirably reduces flow disturbance along passageways of conduits.

Abstract: An exhaust ball seal comprising: a first flange on an exhaust manifold having first and second first flange ears on either side of an exhaust port; an annular seal having a substantially flat seat on a first axial end, a peripheral shoulder on the first axial end proximate to the flat seat and a convex ball seat on a second axial end; a retainer plate having first and second retainer plate ears on either side of a central opening fitting over the seal and an inner lip engaging the peripheral shoulder; a pipe assembly including: (a) a concave ball seat surface engaging the convex ball seat surface of the seal, (b) a second flange, mounted to a pipe, having first and second second flange ears on either side of the pipe; and first and second retainers passing through the second flange ears and threadably engaging the first flange ears wherein each of the first and second retainers has a retaining shoulder proximate to the first flange wherein the retaining shoulders sandwich the retainer plate ears to the first

Abstract: A connecting apparatus for conveyance of cryogenic fluid has a pair of connecting members formed of thermal insulating material. Each has a flange with an axial tubular protrusion and a rim extending over the protrusion so as to form an annular cavity therebetween. Each flange and its protrusion has a central bore. When the two members are fitted together, the combined bore conveys of cryogenic fluid therethrough. The protrusions have overlapping lips with a snug fit to substantially retain the cryogenic fluid in the combined bore. A detachable retainer holds the members in union with an o-ring seal between the rims. The respective cavities form an enclosed cavity that provides thermal insulation between the ring seal and the tubular protrusions for the cryogenic fluid in the common bore.

Abstract: An adjustment device for adjusting a mounting device between two flanges of a pipeline system, wherein the two flanges can be connected via preferably bolt-shaped connection means. The adjustment device consists of an expansion element that can be expanded basically by an inflowing medium wherein the expansion element in its expanded state is adjacent to the mounting device and the connecting means.

Abstract: A multi-ring gasket (24) and flanged pipe joint assembly employing such gasket. The gasket (24) for sealing the joint between two flanged pipes of polyvinylchloride, chlorinated polyvinylchloride or fiberglass-reinforced plastic pipe is provided. The gasket (24) has an inner ring (26), an outer ring (28) and a plurality of spokes (30) connecting the inner ring (26) to the outer ring (28). Voids (34), or reduced thickness areas, are formed between the inner ring, the outer ring and the spokes so as to leave substantial space between the flanges at the voids and thereby reduce the uneven distribution of stress on the flanges when the gasket (24) is installed. The joint assembly employing such gasket (24) has a groove (50) disposed in an inside surface of a flange (12 or 16) and has a channel (51) disposed through the flange. The channel (51) is in communication with the groove (50) and, by means of a port (56), an outside surface of the flange.

Abstract: A low profile joint is provided for a strut tube extending radially through a strut extending between an outer casing and an inner hub in a gas turbine engine frame. The strut tube has a longitudinal axis and a closed distal end. A sideseat is spaced from the distal end and is disposed substantially perpendicularly to the longitudinal axis to define a flow orifice. A secondary tube has a ballnose at a distal end thereof disposed in abutting contact with the sideseat for channeling fluid therebetween. A fastener joins together the strut and secondary tubes in compression between the ballnose and sideseat to maintain sealed contact therebetween for channeling fluid between the strut and secondary tubes.

Abstract: A device for joining the end of a helically corrugated metal tube to a connector or a second helically corrugated metal tube includes a back-up ring, pressure ring and a sealing ring. The connector is provided with a conical transition and an expanded diameter. The second helically corrugated tube is provided with a second back-up ring and pressure ring.

Abstract: A supporting insulator for installation between connecting flanges of a gas-insulated switching installation is provided with an outer ring, with an insulator body which is in the form of a disk and which is formed of a hardened cast resin, and with at least one cast fitting which is subjected to high voltage and is cast in the insulator body. The outer ring need not be assembled with the insulator body until after the outer ring has been colored. The outer ring includes two identically constructed rings that are joined together in a separable, but positively locking manner such that the insulator body can be separated from the outer ring when the rings are separated.

Abstract: A joint assembly for a pipe and a backing mechanism therefor. The joint assembly provides for sealing a pipe, the pipe having an elongate axis, an inside surface, an outside surface and a flange disposed at one end thereof, the flange having a front surface facing away from the pipe, a back surface and an inner periphery defining an outlet of the pipe. Sealing material is disposed adjacent the front surface and inner periphery of the flange. A backing member is adapted to engage the flange and to apply a compressive load from the back surface of the flange toward the sealing material adjacent the from surface and the inner periphery of the flange so as to seat the sealing material along the inner periphery. Seating is against a surface of a cooperating joint member adjacent the front surface of said flange.

Abstract: A deformation indicator is disclosed for repeatably adjusting the fasteners on a flange assembly to maintain a leak-free joint. The indicator is mounted on one of the fasteners used for fastening together the flange members, and extends to a predetermined distance from the adjacent flange member. When the flange fasteners must be adjusted to account for creep in the packing material in the flange, they are adjusted to restore the distance between the indicator and the adjacent flange member to the predetermined value.