Abstract: In a duct connection assemble, whereby upon connecting a saddle flange 2a of the joint duct 8 to the main ribbed duct 3 through the communication hole 1b, the rubber sealant 1 is interposed between the saddle flange 2a and a circumferential area of the communication hole 1b so that protuberances 2b uniformly press the rubber sealant 1 through the recesses 1d to tightly engage the saddle flange 2a against an outer surface of the main ribbed duct 3 through rib-fitting grooves 1a and the water sealing small projective rings 1c. The joint duct 2 is brought into an elastical engagement with the main ribbed duct 3 to achieve a good water sealing action for an extended period of time.

Abstract: The present invention relates to a T pipe for connecting a reduced branch pipe to a main pipe and to a method for producing such a pipe. The invention is characterized in that said T pipe comprises a thermoplastic connection piece (1) including a connection (2) for the branch pipe as well as a base part (3) essentially matching with the curvature of the main pipe and being essentially rectangular viewed in the direction of the central axis of said connection (2), said base part being butt welded to a pipe ring (4) having a size similar to that of the main pipe and a width similar to that of the base part (3), instead of a piece removed from said ring pipe and having a size similar to that of the base part (3).

Abstract: A saddle tee and tap combination for making a fluid connection with an irrigation line in an irrigation system. The saddle tee includes a base having a passage therethrough, and a clamp thereon for engaging an irrigation line. The clamp holds the irrigation line in alignment with the passage, and compresses the irrigation line into an generally oval cross-section elongated in the direction of the axis of the passageway. The tap has a tip with a pointed end adapted to be inserted into the passageway so that the pointed end penetrates the wall of the irrigation line engaged in the clamp, in the direction of the elongation of the cross section.

Abstract: A high-pressure fuel accumulator for a common-rail fuel injection system of an internal combustion engine has a tubular main body (1) to which is welded at least one bushing (13) for connecting a high-pressure line (6). To improve the quality and safety of the high-pressure connections, a collar (14) is formed on the end of the bushing (13) facing the main body (1).

Abstract: A pipe saddle having an elongated band with a radially outward extending hub on one end and a set of teeth extending along a latching member. The hub includes a finger engagement region and an internal tooth for engagement with one of the teeth in a set of teeth on the latching member. A finger engagement region on the latching member allows a user to use one hand to extend the latching member into the hub and to push the latching member into locking engagement in the hub by compressively squeezing on the two finger regions. In order to prevent withdrawal of the latching member from the hub a stop in the hub maintains the teeth in engagement with each other thereby maintaining the band in pressure engagement with a circumferential region of a pipe. Use of multiple teeth permits the pipe saddle to be used on different diameter pipes.

Abstract: The invention relates to a gas valve of the type commonly used to connect a circular or non-planar gas manifold to the burner of a household cooktop. An adapter is provided for converting the gas valve for use with a non-planar profile gas manifold to a planar profile gas manifold.

Abstract: A device for connecting a branch pipe (54) on a fluid-transporting piping system (C). The device (B) includes a support portion (12) on a wall of the piping system (C); a piece (28) for connecting the pipe (54); a perforating member (20) provided with a cutter (70) for perforating the wall (10) of the pipe and a cylindrical portion (71) mounted atop the cutter whereof the outer face (60) is smooth. The device further includes a shaft (16) cylindrical in shape along an axis (51) which receives the perforating member (20) and wherein the perforator can be displaced by screwing to pass from a position perforating the wall (10) to a retracted position inside the shaft (16). A seal (E, 30) is disposed between the shaft (16) and the perforating member (20). The support portion (12), the connecting piece (28), the shaft (16) and the seal (E) are made integral by moulding or overmoulding, and the seal is supported on the outer face of the perforating member (20).

Abstract: A clamp has two injection moulded tangs 1, 2 hinges together by a pin 3 and held closed by a wing nut 4 and a screw 5 having a cross-head 6. The tangs each have a tapered groove 7 running around inside them. In use, this groove engages flanges F on tubes T with a seal S therebetween to hold the tubes in sealing relationship with each other. The one tang 2 has a clevis 10 defined by two lugs 11. Each has an overhung recess 12 into which the cross-head 6 of the screw clips. A crossbar 14 connects the lugs remote from their tang, whereby the screw is limited in its angular displacement about the recesses 12, as shown in FIG. 3. The crossbar also stabilises the lugs against relative displacement under load when the nut is tightened. The other tang 1 has a part conical formation 21 on lugs 22 defining a clevis 23 similar to clevis 10. The nut has a complementary conical recess 24. Engagement of the formation 21 in the recess 24 restrains the lugs from separating under load as the nut is tightened.

Abstract: A through-flange for attaching a pipe to the curved sidewall of a vessel. A flange portion of the through-flange is contoured to match the curvature of the sidewall and thus can be glued directly to the sidewall. A retaining ring also being contoured to match the sidewall is inserted over a tubular portion of the through-flange.

Abstract: A pipette has a tip having at the front end thereof an inlet/outlet hole through which a liquid is sucked up and delivered. The pipette is fitted at an opening formed therein with an air passage through which air is sucked out from inside the pipette tip or supplied into the pipette tip. The pipette includes an inflatable member secured to the pipette body and which can be inflated with a fluid charged therein. The pipette body has formed therein separately from the air passage a fluid passage through which a fluid is charged and discharged. The inflatable member when charged with the fluid through the fluid passage in the pipette body and thus inflated closely adheres to the inner wall or outer surface of the top end portion of the pipette tip where the opening is formed, to thereby securely catch the pipette tip.

Abstract: The method and two devices provide for the underground connection of pipe with minimal disruption of the surrounding landscape. A main pipe is cleaned by a surface preparation tool designed to access the main pipe through a small hole. An adaptor is attached to a second pipe, and then placed in a clamping device designed to access the main pipe and clamp the adaptor thereto through the small hole. Electricity is passed through the adaptor, thereby softening the plastic so that this softening and the pressure of the clamp secures the adaptor to the main pipe. The main pipe is then pierced by the adaptor's tapping tee.

Abstract: A saddle assembly is secured about a liquid conduit by its contoured base portion and a half clamp and threaded fasteners. A pipe or nipple is received in a gasketed bell-end outlet and is retained against separation by respective components and devices.

Abstract: A hollow fitting assembly is secured with a pressure-tight seal in a hole which is disposed in a curved wall of a vessel. A body barrel portion of a hollow body element is inserted through the hole from a concave side of the vessel wall. A force-distributing washer is inserted over the free end of the body barrel portion such that a concave face of the washer faces the hole, and a flat face of the washer faces away from the hole. A pusher flange is screwed onto the free end of the body barrel portion. Jack bolts are screwed into internally threaded apertures of the pusher flange and are brought into abutting relationship with the flat face of the washer so that upon tightening of the jack bolts, a flange portion of the hollow fitting compresses a seal ring against the concave side of the vessel wall to form a pressure-tight seal around the hole. An externally threaded hollow connection member is attached to a threaded interior of the body barrel portion.

Abstract: The fastening device is intended for two hydraulically communicating fitting parts (1, 33). In order to fasten a lateral fitting part (33) on the end face to an outer wall (8) of a wide fitting part (1) at a predetermined angle, the fastening device comprises a fastening part (11) and a threaded tube (28) capable of being screwed into the latter. The shape of a zone (16) of one end of the fastening part (11) is matched to the outer wall (8) of the fitting part (1) according to this predetermined angle. The fastening part (11) has means (15) in order to be mounted on an orifice (9) of the wide fitting part (1). The threaded tube (28) is provided with an outer fastening means (32) which co-operates with an inner fastening means (35) of the lateral fitting part (33).

Abstract: A clamp used in branching a soft hose, by which fluid can flow from the main hose to a branch hose more smoothly. The clamp includes inner and outer pressing plates to be in tight contact with inner and outer surfaces of a main hose, a nipple integrated with the inner pressing plate, and an assembling tube having a watertight ring fitted around the nipple. The main hose has an ellipsoidal opening elongated in a longitudinal direction of the main hose, and the inner pressing plate is also ellipsoidal shape and its area is larger than that of the opening. The nipple has hoding jaws and the outer pressing plate has a through hole, through which the assembling tube is fitted. A nut is fitted under the nipple of the asembling tube after the outer pressing plate is fitted, and the branch hose is fitted around the nipple.

Abstract: An end-cap lockingly securable to the end of the pipe at the same time a secondary action such as a branch line is formed to the main pipe line. The end cap housing has an integral branch forming member to allow a user to lock the end cap to the pipe by forming a branch line on the side of the pipe with the end cap housing sandwiching the end of a pipe between a pipe insert and a pipe receptor in the end cap housing. The pipe receptor includes an insert having a sealing surface, which when engaged to the interior surface of a pipe, forms a leak-proof relationship with the pipe.

Abstract: A branch connector in a fuel pressure accumulating container is joined with a through hole formed on a peripheral wall of the pressure accumulating container. The branch connector is inserted deeply into the through hole until the distal end of the branch connector is projected from the inner peripheral wall surface of the pressure accumulating container. Thus, the internal pressure fatigue strength is improved by lowering the maximum stress value generated at the internal peripheral edge at the lower end of the branch connector.

Abstract: A mat gasket for use with a tapping saddle is disposed about an aperture in a main fluid conduit and is further disposed between and in sealed contact with the main fluid conduit and an outer sleeve member. The mat gasket includes an aperture aligned with the aperture in the main fluid conduit and outer and inner portions in sealed contact with the outer sleeve member and the main fluid conduit, respectively. The mat gasket's inner portion is provided with a waffled surface and includes spaced ribs concentrically disposed about and in closely spaced relation to the aperture in the gasket and a pair of opposed, tapered edges. The mat gasket's outer portion is provided with a pair of concentric O-rings disposed about the gasket's aperture for engaging the outer sleeve member in a sealed manner.

Abstract: The present invention relates to a junction in a pipe for connecting the pipe (1) into fluid communication with a fluid-carrying component (18), the junction comprising an opening (2) provided in the wall of the pipe and a connecting part (3) comprising a tube-clamp-like joint (3) comprising a first part (4) and a second part, which can be tightened against the first part by means of tightening means (6) and which comprises a narower first portion (10) and a broader second portion (11), whereby the narrower portion is positioned in the opening (2) and the broader portion outside the pipe (1). The invention also relates to a method of forming to the wall of a pipe a branching for receiving a fluid-carrying component.

Abstract: A multi-setting connector for connecting at least one secondary branch line to a main line of a sap collection system or network comprises a clip member, a sap conveying member and a pair of straps. The clip member by way of the straps is adapted to be firmly mounted around the main line with the sap conveying member extending through the clip member and into the main conduit and having tubular fittings for connection to the branch lines such that the branch lines are fluidly connected to the main line by way of the hollow sap conveying member. The sap conveying member is typically firmly assembled to the clip member, whereas the straps are detachable from the clip member with the clip member and the straps being adapted to be selectively connected together such as to adjust an effective length of the straps, typically depending on the outside diameter of the main line.

Abstract: A high-pressure fuel accumulator for a common-rail fuel injection system of an internal combustion engine has a tubular main body (1) to which is welded at least one bushing (13) for connecting a high-pressure line (6).

Abstract: The device (10; 10A) enables a quick connection to be made to a vacuum line (15), a filtered air line or a milk line forming part of a milking plant. It comprises a tubular connector (12; 12A) including a mouthpiece (20) to be inserted into a through hole (22) previously formed in the wall of the line (15). The connector (12; 12A) also comprises an annular seal gasket (24) which is carried by the connector (12; 12A) and surrounds the mouthpiece (20) in order to make contact with the outer surface of the line (15); means (28, 30, 32, 40) are also provided for pressing the connector (12; 12A) against the line (15) to ensure that the annular gasket (24) seals.

Abstract: A hollow tap having an axially outward extending cutting tooth so that when the cutting tooth is brought into rotational pressure engagement with a resilient tubing the cutting tooth cuts a hole partially through the resilient tubing leaving a coupon hingedly but securely attached to the resilient tubing to maintain the coupon in an out-of-the-way condition within the resilient tubing. Continued rotation of the tap within a saddle brings a sealing surface on the cutting tube into fluid tight seal with the resilient tubing to provide a branch outlet to the resilient tubing though the tap.

Abstract: A universal holding tank connector fitting is provided which is formed from thermoplastic material and has a pass-though hub that enters the holding tank wall and is retained thereto by a sealing collar and a threaded nut engaging the sealing collar within the tank. Conformal seals are disposed between the hub and collar and the tank wall, with the hub and collar themselves keyed to the particular tank wall configuration. The hub includes an internal passageway into the tank which is dimensioned to closely receive the particular pipe, which is to be connected via a solvent weld, and, in certain embodiments, an end stop to limit and positively locate the pipe penetration into the tank. The conformal seals are keyed to fit at predetermined locations on the hub and collar, and load concentrating configurations are formed along the sealing surfaces that facilitate even and reliable seal pressure when the fitting elements are compressed together.

Abstract: A device for connecting a first tube (10) with a connection tube (14) whose end segments (22, 24) extend through an opening (12) of the first tube and to establish in a simple manner, a force-fit connection between the tubes, a tool (34) is proposed which comprises at least two segments (36, 38) axially displaceable relative to the other and extending within the connection tube(14) up to or nearly into the first tube (10), with one of the segments (36) having a radially projecting protrusion (42) which engages the end segment (22, 24) with the segments disposed within the tube (10), and external to the projecting protrusion the segments have a total effective diameter which is adapted to the inner diameter of the connection tube (14) in the region of the opening (12) of the first tube (10).

Abstract: A diffuser mounting assembly includes two saddle sections having integral outlet fittings to which elongated air diffusers can be mounted for aerating liquid in a basin. Air laterals installed in the basin receive the saddle sections on opposite sides so that the outlet fittings and diffusers extending on opposite sides of the laterals. Wedge fasteners are applied to flanges on the top and bottom edges of the saddle sections to secure them on the laterals. The outlet fittings are offset below center on the saddle sections so that both the laterals and diffusers can be located adjacent to the floor. The diffusers with a saddle section attached to each can be shipped in a compact configuration in shipping cartons.

Abstract: The high-pressure fluid manifold connection assembly includes a one-piece tube collar with an annular relief cavity that surrounds a high-pressure fluid tube. The tube includes a hole that passes through the tube and which is not aligned with an exit hole in an annular relief cavity of the tube collar.

Abstract: The invention provides an electrofusion joint made of a thermoplastic resin for connection with a resin pipe by heat generation of heating wires embedded in its saddle portion through electric conduction, such as a saddle joint comprising a saddle portion to be fitted to an outer circumferential surface of a resin pipe provided with heating wires embedded in its surface to be joined to the resin pipe, also comprising a spigot projecting from the saddle portion and to which a branch pipe is to be connected, or a service tee joint comprising a saddle portion in which heating wires are embedded, a trunk portion projecting from the saddle portion and a spigot projecting in a lateral direction from the trunk portion.

Abstract: A multi-setting connector for connecting at least one secondary branch line to a main line of a sap collection system or network comprises a clip member, a sap conveying member and a pair of straps. The clip member by way of the straps is adapted to be firmly mounted around the main line with the sap conveying member extending through the clip member and into the main conduit and having tubular fittings for connection to the branch lines such that the branch lines are fluidly connected to the main line. The straps are detachable from the clip member with the clip member and the straps being adapted to be selectively connected together such as to adjust an effective length of the straps, typically depending on the outside diameter of the main line. More particularly, the clip member and the straps include co-operating male and female engagement members configured for mounting the straps at various relative positions with respect to the clip member.

Abstract: A mechanical coupling is provided for connecting a branch pipe to a main pipe at a hole through the main pipe. The coupling includes an elastomeric sealing gasket which has a plurality of generally parallel extending, but radially spaced, circumferential seals to effect a secure sealing engagement between the main pipe and the branch pipe in a minimal size coupling. Further, there is increased retention of the gasket within the coupling during on-site assembly which facilitates such assembly.

Abstract: A lateral adaptor (6) for a main pipe (1), such as a structured wall plastics pipe consisting of a cylindrical shell (2) and a corrugated shell (3) bonded to the outside thereof, comprises a sleeve (7) with a flange (8) extending outwardly at one end and curved to match the internal curvature of the main pipe (1) and adapted at the other end (as by means of a socket (9) or a spigot, not illustrated) for connection of a branch pipe (not shown), an annular movable member (10) slidable on the sleeve (7) and having a curved face (11) to match the external curvature of the main pipe (1), an elastomeric seal ring (12) held captive between the to flange (8) on the sleeve (7) and the movable member (10) and having inner and outer curved faces (13, 14) to match the curvature of the flange (8) on the sleeve (7) and the face (11) of the movable member (10) respectively, an annular abutment member (15) adjacent the face (16) of the movable member (10) remote from its curved face (11), an annular shoulder (17) on the slee

Abstract: A saddle assembly is secured about a liquid conduit by its contoured base portion and a half clamp and threaded fasteners. A pipe or nipple is received in a gasketed bell-end outlet and is retained against separation by respective components and devices.

Abstract: A clamp assembly prevents separation of a thermal sleeve penetrating a nuclear reactor pressure vessel wall and a jet pump riser elbow welded one to the other and lying within an annular space between the pressure vessel wall and core shroud. The clamp assembly includes a pair of heads having semi-cylindrical recesses. Pins project inwardly from each of the heads in the semi-cylindrical recesses and have axes which lie parallel to one another. By using actuators mounting multiple electrodes, holes may be formed in situ in the adjoining ends of the thermal sleeve and elbow. Once the holes are formed, the heads can be applied in situ with the pins being received through the holes and the heads clamped to one another. Thug, the pins in each of the sleeve and elbow prevent separating movement of the sleeve and elbow in the event of failure of the welded joint therebetween.

Abstract: A clamp of a thermally weldable material for a pipe of a thermally weldable material has two segments surrounding the pipe in a position of use of the clamp. The segments have heating mats of heatable electrical conduits integrated into inner surfaces of the segments. Each segment has two border edges facing one another in the position of use and clamped to one another by fastening elements. A first border edge of each segment has at least one segment flap projecting past the first border edge, and the second border edge has at least one pocket recessed relative to the second border edge. Segment flaps and pockets are complementary to the segment flaps and pockets of the opposed segment in the position of use. The heating mats have projecting flaps integrated into the area of the segment flaps and gaps in the area of the pockets.

Abstract: A self-tapping tee for heavy walled plastic pipe such as polyvinyl chloride (PVC) or thick walled polyethylene tubing. The self-tapping tee includes a saddle for gripping a tubular line to be tapped, a coupling tap with a stem for poking a hole in a sidewall of the line, with the sidewall of the line around the hole stretched about the stem, forming a seal, and a removable mandrel for supporting the stem while the hole is being made.

Abstract: A drip emitter attaching apparatus for easily attaching drip emitters to a tube. The drip emitter attaching apparatus includes a drip emitter attaching apparatus for puncturing holes in a piece of piping and attaching a 45 degree drip emitter, a straight drip emitter and a T-drip emitter to the pipe. The drip emitter attaching apparatus comprises a housing. The housing comprises a first block portion. The first block portion includes a first end, a second end, a bottom side, a top side with a peripheral edge extending therebetween. The top side includes a elongated arcuate depression therein and extending between the first end and the second end. The housing also comprises a second block portion. The second block portion includes a first end, a second end, a first lateral side wall, a second lateral side wall, a bottom surface, and a top surface. The top surface includes a elongated arcuate depression therein. The arcuate depression includes a well extending therein.

Abstract: A mechanical coupling is provided for connecting a branch pipe to a main pipe at a hole through the main pipe. The coupling includes an elastomeric sealing gasket which has a plurality of generally parallel extending, but radially spaced, circumferential seals to effect a secure sealing engagement between the main pipe and the branch pipe in a minimal size coupling. Further, there is increased retention of the gasket within the coupling during on-site assembly which facilitates such assembly.

Abstract: A connection adapter designed for gas bottle valves has a clamp-like locking device. An actuating device moves a piston guide bushing axially relative to the locking device to move the bushing into a sealed position in which the bushing bears upon a complimentary shaped connecting element. The actuating device has a threaded sleeve inside which the piston guide bushing is centrally extended, the threaded sleeve and bushing being mounted so that rotation of the threaded sleeve moves the bushing axially without rotating the bushing. A non-rotating, sliding block may be interposed between an end of the bushing and the clamp mounting.

Abstract: The invention concerns a process for leak proof connection of branch lines such as house lines (1) to main lines such as rehabilitated sewer pipes (2). A lining hose (4) with a flat textile material such as nonwoven fabric, woven cloth, knit fabric, mesh fabric or laminate, which can be soaked in curable liquid resin, is introduced into the feeder line before or after soaking with a resin and its other, collar-shaped expanded end is bonded in the inside of the main line by means of a ring-formed fitting (5) to form a leak proof seal. The ring-formed fitting (5) consists of thermoplastic (7) on one side and of a flat textile material (8) such as nonwoven fabric, woven cloth, knit fabric, mesh fabric or laminate on the other. The ring-formed fitting (5) is welded with the inner thermoplastic surface (6) of the main line, while the flat textile material (8) of the ring-formed fitting (5) is connected with the collar-shaped, expanded end of the lining hose (4) by gluing.

Abstract: Secured to an exterior surface of a well casing having an aperture formed therein is a first unit including a horizontal fluid passage receiving a horizontal pipe and extending through a generally annular seat in registration with the aperture. A second unit is disposed within an interior surface of the wall casing for supporting a vertical pipe and pump assembly and includes a generally planar flange adapted to be slidably received in a blind channel of the first unit at an angle relative to the longitudinal axis of the well casing so as to provide a continuous fluid passage between the vertical pipe and the horizontal pipe. The annular seat of the first unit is completely recessed from the inner surface of the well casing such that upon release of the second unit from the first unit, the second unit and its pump assembly are movable in a totally obstruction-free path through the interior surface of the well casing.

Abstract: The present disclosure relates to guillotine clamp including a U-bolt mounted on a saddle member. The U-bolt has a concave portion that opposes a corresponding concave portion of the saddle member. At least one curved shim is positioned between the concave portions of the U-bolt and the saddle member to provide both sealing and clamping of a lap joint.

Abstract: The invention relates to a device for positioning and holding together a secondary pipe on a branch connector before the branch connector is mounted on a buried main pipe for transporting fluid. The device rests solely on the secondary pipe and on the branch connector away from the main pipe.

Abstract: A self-tapping tee for heavy walled plastic pipe such as polyvinyl chloride (PVC) or thick walled polyethylene tubing. The self-tapping tee includes a saddle for gripping a tubular line to be tapped, a coupling tap with a stem for poking a hole in a sidewall of the line, with the sidewall of the line around the hole stretched about the stem, forming a seal, and a removable mandrel for supporting the stem while the hole is being made.

Abstract: The invention relates to a fitting (70) and a securing component (90) for attaching to a hole in a pipe.

Abstract: A device inserted through a tubular wall by means of a cylindrical flange surrounding a through-bore which is used to insert a tool for flaving the annular region defined by the flange around the bore on the inside of said wall, so that the device may be mechanically secured thereto. The bore is then plugged with a disc and the whole assembly is sealed by brazing.

Abstract: A structure of a pipeline connector is mainly composed of a socket, a restriction ring, a cover ring, a fixed inner pipe, a fixed outer pipe and a stopping ring. The socket is composed of a cone shaped opening and secured with an inner pipe. The opening of the socket comprises a restriction ring and a locknut, with the fixed inner pipe secured within the socket by means of the locknut, the fixed inner pipe and the inner pipe of the fixed inner pipe been inserted through the fixed outer pipe and sleeved with a stopping ring at the end of the inner pipe so as to allow a smooth sliding of the fixed inner pipe and the fixed outer pipe, relatively.

Abstract: The invention relates to a method and apparatus for installing a branch connector on a buried pipe for transporting a fluid, and to do so by means of a multi-purpose long handle from the top of an excavation. The apparatus comprises a bottom saddle positioner having a support structure on which there are disposed firstly clamping connection means adapted to the diameter of the pipe together with a support adaptor for supporting a bottom saddle, and secondly means for releasably fixing the positioner to the end of the multi-purpose long handle and situated on the side of the support structure opposite from its side on which the clamping connection means are situated.

Abstract: A construction for fixing a pipe joint is disclosed. The construction includes a pipe joint body within which a fluid transport pipe is connected and engaged in a sealed state via an elastic seal, a press ring fitted on the fluid transport pipe, the press ring being peripherally divided to provide a plurality of press-ring segments, a fastener for fasting each press-ring segment to a connecting portion of the pipe joint body along a pipe axis direction, and a retainer member interposed between an outer peripheral face of the fluid transport pipe and an inner peripheral face of the press ring, the retainer member being capable of radially biting into the outer peripheral face of the fluid transport pipe. A cam surface formed in the inner peripheral face of the press ring is operable to reduce the retainer member radially with a relative movement between the pipe joint body and the press ring along the pipe axis direction in association with a fastening operation by the fastener.

Abstract: A common rail includes a generally cylindrical peripheral wall having a communication passage extending axially therethrough. At least one branch hole extends through the peripheral wall and is aligned perpendicular to the axis of the common rail. The intersection of the branch hole with the outer surface of the main pipe rail defines an outwardly flared pressure receiving seat for receiving the connection head portion of a branch pipe. A sleeve nipple is welded or brazed to the outer surface of the main pipe rail and surrounds the branch hole. Inner surface regions of the peripheral wall surrounding the branch hole have a compression residual stress imparted thereto. The creation of the compression residual stress may cause a portion of the inner surface of the main pipe rail surrounding the branch hole to assume a non-cylindrical configuration.

Abstract: The present invention relates to a branch pipe connection including a locking ring and a sleeve that are arranged against one another and can be tightened in their axial direction. The connection further includes a support flange. The locking ring is of such a flexible material that the locking ring can be placed inside a pipe or the like through a hole made for the branch pipe from outside the pipe or the like, although the smallest outer diameter of the flange of the locking ring is larger than the largest diameter of the hole.