Abstract: A male member to a hose adapter as for metal to metal, male to female, mating has a frustoconical sealing surface, for example, of 30, 37 or 45 degrees, for mating with a corresponding female member having a corresponding sealing surface. These surfaces are secured by a rotating female member, threads of which mate with the corresponding, threaded male member. The mating parts are drawn together as the threads are engaged and fully torqued. The male frustoconical surface is interrupted by a machined recess or undercut area, for example, of about 0.20 to 0.40 inches deep. This recess or undercut typically starts about one third of the way up the male frustoconical surface, and continues until the taper incline intersects with the threaded plane parallel to the bore of the adapter, and a recess or undercut extension can continue along the thread plane parallel or slightly tapered with respect to the bore until it reaches the base of the male thread, where it terminates.

Abstract: A universal non-threaded pipe connector system for connecting multiple types of conduit, tubing, hose, and pipe comprising a first tubular member for a fluid, at least one raised surface on the tubular member substantially perpendicular to the axis of connection of the first tubular member; a second tubular member having an inside diameter larger than the outside diameter of the at least one raised surface on the first tubular member substantially perpendicular to the axis of connection for receiving the first tubular member and the at least one raised surface on the tubular member, at least one seal between the one raised surface on the first tubular member and the second tubular member forming a seal there between and a member for controlled compression of the seal between the second tubular member and the at least one raised surface on the first tubular member and for connecting the first and second tubular members.

Abstract: A wellhead flange assembly 12 is provided for interconnecting the threaded end of an upwardly projecting screwed wellhead 16 with a lower flange of the blowout preventer 24. The flange assembly comprises a threaded adapter 40 including a thin-walled portion 54, a flange support portion 56, and an upper stop portion 52. A wellhead flange 42 includes a plurality of bolt holes 44 and an upper surface 51 for engagement with the lower flange of the blowout preventer. A plurality of securing members 48 are provided for selectively connecting and disconnecting the wellhead flange 42 and the threaded adapter 40. An adapter-to-flange seal 60 is provided for sealing engagement between the threaded adapter 40 and the wellhead flange 42. According the method of the invention, the threaded adapter may be easily heated to facilitate removal from the screwed wellhead, or may be cut off the screwed wellhead without damaging the screwed wellhead, thereby permitting the reuse of the wellhead flange on a new well.

Abstract: An electrically-insulated pipe coupling includes a first tubular metal body, a second tubular metal body which has a cylindrical section and which has molded onto it an electrically-insulating covering extending over the end of the body and a portion of the cylindrical section, a coupling member for securing the two metal bodies together at their respective ends and which is disposed over the juncture of the two metal bodies in such a manner that a portion of the electrically-insulating covering molded onto the second tubular body extends beyond the coupling member, and an electrically-insulating barrier extending outwardly from the cylindrical section of the second tubular body and disposed about the portion of the electrically insulating covering extending beyond the coupling member.

Abstract: A fluid connector fitting which reduces the required space for assembly in fluid handling systems. The fitting has an internal sealing face which, together with a conventional fluid adapter fitting, forms a fluid tight seal. A swivel nut is rotatably mounted in the body by a retainer. The swivel nut is internally threaded for connection with the adapter fitting.

Abstract: A rigid connector tube telescopically engages the fuel rail and the inlet of a top-feed fuel injector. Various embodiments of such connector tubes are disclosed. Such connector tubes enable a top-feed fuel injector to be used in an integrated air-fuel system where a fuel rail is integrally formed with a manifold such that the fuel supply ports of the fuel rail are in fixed spatial relation to the fuel injection ports of the manifold.

Abstract: Hose coupling component, especially for a hose connection between a turbo charger and an air cooler in an internal combustion engine, comprises a pipe sleeve (12) of pressed sheet metal, which has a peripheral flange (16) to be fixed by means of a V-shaped clamp to a corresponding mirror image flange on a complementary coupling component. The sleeve has a groove (18) for a gasket in the flange and has a circumferential depression (15) for indexing a hose (1) forced onto the coupling component.

Abstract: A sealed connector for an automotive air conditioning system compresses a sealing ring between accurately ground, axially opposed sealing surfaces of a pair of mated connector blocks that are bolted together. A steel retainer to which the sealing ring is molded prevents it from being blown out under high pressure, and one of the connector blocks is relieved to accommodate the retainer, thereby preventing interference with the clamping of the blocks. Seal compression is even and complete.

Abstract: A junction adapter, having face seal fluid fittings and being for use in a conventional plural line clamping system, has axial extension portions which extend from a central support portion, in a manner which permits face seal fluid connectors to be easily accessed by a wrench or like tool. Two embodiments of this new kind of junction adapter are described. The first embodiment features a junction adapter having axial extension portions which extend symmetrically outwardly from a central support portion substantially beyond the axial extension portions of conventional face seal junction adapters. This first embodiment can be installed in a plural line clamping system in an alternating manner with conventional face seal junction adapters.

Abstract: A flange assembly (24) includes a cover (26), a base (28) and a compliant gasket (30) all of which are of circular configuration with a central opening. Gasket (30) is assembled within a nest formed by tapered surface (52) and rim (50) of base (28). Cover (26) is assembled with base (28) by the snap fit of inwardly turned edge (38) of the cover into annular groove (56) of the base. In this position, an inwardly turned lip (34) of cover (26) engages a ledge (70) of gasket (28) to retain the gasket within the nest. A section (78) of gasket (28) extends into a central opening of flange assembly (24) and includes a tapered inner side wall (62) which frictionally engages a conduit (20) of a faucet as the flange assembly is slid onto the conduit. Conduit (20) compresses section (78) of gasket (28) which includes side wall (62 ) into the nest where the forces of the compressed gasket retain flange assembly (24) with the conduit.

Abstract: A sealing ring having a predetermined axis of symmetry is formed of a resiliently compressible elastomer for use in a sealing ring system in which two members are secured together with the ring interposed therebetween. The sealing ring has an annular base portion that has substantially parallel first and second axially extending surfaces with each surface having a first axial edge and a second axial edge spaced therefrom, and the second axial edges are joined by a radially extending surface. Integrally formed with the base portion is an annular head portion that extends between both of the first axial edges of the axially extending surfaces of the base portion. The head portion has a predetermined maximum axial thickness and at least one substantially planar surface extending generally radially a predetermined distance from the first axial edge of at least one of the axially extending surfaces of the base, whereby each of the planar surfaces and the adjacent axially extending surfaces form a shoulder.

Abstract: In a system for providing a direct sealing connection between flat coupling hardware and VCR-type coupling hardware, a gasket is provided having a conical inwardly facing side surface to engage the toroidal projection on the endface of the VCR-type coupling hardware. The opposite side surface of the gasket is provided with an internal shoulder to receive a metal O-ring to be sandwiched between the gasket and the flat end surface of the flat coupling hardware.

Abstract: In the present invention, when a multi-injection molded body made of at least a first and a second resins is molded, catching means are formed generally by pressing a part of the surface about an opening of a concave section formed in a first molded body made of the first resin to project interior side wall faces of the concave section inward, and injecting a second resin to mold a second molded body thus formed has catching means in the concave section, so that the second molded body is tightly fixed to the first molded body.

Abstract: A self-aligned flanged coupling for a pair of product transport pipes comprising a male member, a female member disposable in coupling relation to the male member, a clamping assembly mating with the male and female members for releasably securing the members, and an O-ring for disposed between the male and female members, wherein the male member comprises a first pipe, an annular flange for receiving the O-ring extending outwardly and circumferentially about the outer diameter of the first pipe and secured to the pipe having a recess disposed therein to receive the O-ring, wherein the pipe extends beyond the annular flange, wherein the female member comprises a second pipe, a support extending outwardly and circumferentially about the outer diameter of the second pipe, wherein the support extends beyond the second pipe, and a flanged portion extending outwardly from the second pipe and secured to the support having an orifice therein also adapted to receive the O-ring, wherein the O-ring is disposed within t

Abstract: A metallic seal ring assembly including a U-shaped ring having a bight section and a pair of legs, a flange on the end of each of the legs, each flange including a radial surface and an annular surface, the distance between the radial surfaces being greater than the width of the bight section of the ring and a resilient sealing material filling the space between the legs of the ring.

Abstract: The present invention is a hydraulic coupling with an O-ring seal and a stop wall. The O-ring sealing works conventionally to provide a hydraulic seal, while the stop wall limits the range of adjustment for the male fitting. The male fitting is prevented from further inward axial movement because of the abutment of the stop wall with the annular edge of the fitting.

Abstract: A sealed joint between two relatively movable surfaces. There is a recess in a first surface and a sealing member is received in with a close fit in the recess. The sealing member has a modulus of elasticity such that it does not deform substantially under a predetermined external pressure. The sealing member extends from the recess to contact the second surface. A sealing ring is received in the recess to provide an additional seal for the joint. Pressure applied to one side of the joint can act on that side of the sealing member remote from the second surface to force the sealing member against the second surface. The end of a sealing member is chamfered where it contacts the second surface to reduce the area of contact with the second surface.

Abstract: A sealing ring for use in sealing a spigot and the like in an oversized hole is formed of resilient material and comprises a proximal portion, a distal portion and an intermediate seating portion. The proximal portion has an external diameter greater than the diameter of the hole and is adapted for location in a seating groove surrounding the spigot The distal portion has an external diameter between The diameters of the spigot and the hole and an internal diameter less than the spigot diameter and is adapted for location in the gap between the spigot and the hole. The intermediate seating portion is between the proximal and distal portions and tapers inwardly from the proximal portion to the distal portion such that the intermediate seating portion seats on the edge of the hole and centers the seal and spigot.

Abstract: A coupling device for ducts comprises locking elements constrained to the flange of a first duct which are connected to movement means to move them toward or away from the flange of a second duct. The movement means are actuated by a thrust ring which is rotated around the axis of the first duct. Along the contact side of the flange of the first duct are provided elastically stressed seals which interact between the flange of the first duct and the flange of said connected duct. Said seals consist of floating rings running and oscillating in recesses made in the flange, said floating rings being acted upon by elastic elements inserted in said recesses.

Abstract: The invention relates to a connecting piece for connecting tubular members such as hoses, pipes, or other structural parts, carrying fluids with each other. A clamping part is available which has two half shell-shaped clamping halves with one clamping surface curved in accordance with the outer circumference of the end of the tubular member to be inserted. In their plug-in position the clamping halves are arranged at a distance to each other which permits insertion of the plug-in end of a tubular member. In their clamping position they enclose non-displaceably the plug-in end of the pipe, the hose or similar and they are simultaneously fixed on a contact part of the connecting piece.

Abstract: An aseptic pipe joint for food processing pipe fittings of the type including a pair of frustoconical ferrules having radially extending surfaces, a "C" shaped metallic ring positioned between the surfaces in abutting relation therewith, a resilient O-ring filling the "C" shaped ring to form an aseptic seal, a resilient seal ring positioned between the ferrule surfaces and spaced radially outwardly from the "C" shaped ring forming a hermetic zone between the seals and a passage in one of the ferrules connected to the hermetic zone for testing the aseptic seal.

Abstract: A connector means which provides a fluid-tight seal, but with relative rotation of a pair of body members of a hydraulic line or device. Cylindrical extensions on both the body members, which interfit in assembly, have circumferential grooves facing one another and receive ball bearing members in the circumferential chamber provided by the grooves; and the arrangement is such that the bearing members act to block axial withdrawal of the body members from a tight sealing engagement with an O-ring which assures fluid-tightness of the joint even though the body members are relatively rotatable.

Abstract: A coupling apparatus is provided for connection to a cylindrical member. The coupling apparatus includes a body member and an annular seal between the body member and the cylindrical member. A plurality of collet sections are disposed about the body member, and each collet section has a first end connected to the body member and a second end adapted for engagement with a downward facing surface of a shoulder of the cylindrical member. An outer sleeve is slidable relative to the collet sections between an open position wherein the second ends of the collet sections are held in a relatively radially expanded position and a closed position. A release device is operably associated with the plurality of collet sections and the outer sleeve for moving the second ends of the collet sections to their relatively radially expanded position upon sliding of the outer sleeve from its closed position to its open position.

Abstract: A sealing assembly is clampable to the end of a threaded male pipe section. The assembly includes an aperture which guides a drill bit radially inwards to establish a radial blind bore in the outer surface of the pipe section into the threads thereof. A cylinder is slidably positionable over the aperture and carries an elongate strip of resilient sealing material slidably disposed in a transverse slot therethrough and a slidable cylindrical punch shaft coaxially aligned with the cylinder. Radially inward movement of the shaft punches out a cylindrical sealing plug from the strip. The plug is forced by continued inward movement of the shaft along a cylindrical aperture in the cylinder which receives the shaft and is in coaxial alignment therewith until the plug is press-fit into the radial blind bore.

Abstract: A split type sealing device for providing high pressure sealing around a cylindrical member such as a tube. The sealing device utilizes a primary flexible split seal ring element and a rigid split back-up ring, which have their splits positioned on opposite sides of the cylindrical member so as to encircle the member. The seal rings are maintained in position against high sealing pressure by a split seal retainer enclosed by mating clamping means, such as a slotted coupling member having an external threaded end and a mating conduit and ring nut. The pressure axial loading on the tube is accommodated by a split clamp ring which clamps the coupling to the cylindrical member, which is usually a tube. The seal device is suitable for sealing against internal pressures of 0-5000 psi.

Abstract: A connecting clamp for a pneumatic apparatus (e.g. apparatus for operation with compressed air) which apparatus comprises a substantially parallelepiped shaped body (10) of plastic material associated with a bottom (30) and a lid (40) placed on two opposite faces of the body. The clamp is constituted by a rectangular aluminum alloy plate (50) of substantially the same size as one of the other faces of the body, against which it is applied. The clamp includes a central tapped sleeve (58) for making connection to other pneumatic equipment and lugs (57) projecting perpendicularly from the plate, each lug having an orifice (56) with its axis extending in a plane parallel to the plane of the plate and capable of receiving a rod or screw for fixing the clamp to the body, the rod or screw also passing through the lid or the bottom to fix the lid or the bottom to the body.

Abstract: A restraining ring and gland for a mechanical joint with a plain plastic pipe end including two semi-circular members securable together by lateral end flanges and having a cylindrical tapered bore having a roughened surface and provided with longitudinally spaced internal annular blunt edged ribs for gripping the plastic pipe without cutting the pipe surface. When the PVC pipe is coupled to iron pipe, one gland is used. When the PVC pipe is connected to a PVC bell or fitting, two glands are used secured together by longitudinal bolts.

Abstract: The invention relates to a connection for joining a pipe provided with a flared end to a fixed connection piece. The connection comprises a conventional joint piece for flared connections having an insert piece screwed on the end facing the fixed connection piece for abutment against the fixed connection piece and against an end cone of the joint piece. A portion of the surface of the insert piece abutting against the fixed connection piece is arranged to extend some distance forwards before the mounting so that this portion, when tightening a flange, will be deformed and pressed against the end cone of the joint piece in order to provide sealing.

Abstract: The connecting piece includes a hollow many-sided head and a hollow screw which forms one piece with the many-sided head. The screw is provided with an external thread so that it can be screwed into the internal thread of a part of a line or an apparatus. A chamber-like circular recess is worked from below into the many-sided head in the proximity of the end of the thread of the screw. The circular recess is worked into the many-sided head in one operation. The cutting tool is first guided into a gate at the end of the thread of the screw perpendicularly to the longitudinal axis of the connecting piece. Thereafter the cutting tool is guided into the bottom surface of the many-sided head in parallel with the longitudinal axis of the connecting piece. In this way a guide surface at the end of the thread of the screw is formed which is free of obstacles.

Abstract: Apparatus and methods are provided for coupling a body member to a cylindrical member having a radially outward extending shoulder thereon. A coupling includes the body member and an annular seal for sealing between the body member and the cylindrical member. A plurality of collet sections are disposed around the body member, each of the collet sections having an upper end connected to the body member and having a lower end adapted for engagement with a lower end surface of the shoulder of the cylindrical member. An outer sleeve is slidably disposed about the plurality of collet sections and is slidable relative to the collet sections between an open position wherein the lower ends of the collet sections may receive the shoulder of the cylindrical member therebetween, and a closed position wherein the body member is sealingly coupled to the cylindrical member.

Abstract: A seal for use in an underwater connector having first and second mating members each of which has a coacting mating surface with a plurality of fluid passageways for mating with the passageways of the other member. The seal is a resilient tubular member having threads on a portion of its outer diameter for connection to a passageway on one of the members. The seal includes a fluid sealing surface on its outer end for mating with the other member and the seal includes a fluid sealing surface on its inner end for sealing with the one member. The sealing point of the sealing surface on the outer end has a diameter at least as great as the diameter of the sealing point of the sealing surface on the inner end. The sealing surface on the inner end is formed by an O-ring seal in a groove in the annular resilient seal. The sealing surface on the outer end includes a ridge.

Abstract: A flexible pipe joint coupling apparatus for attaching a pipe to a flange comprises a pipe portion which fits into an alignment ring which is attached in turn to the flange. The alignment ring provides centering and anchoring of the pipe portion. A yieldable gasket is positioned between the end of the pipe portion and the flange. Spaced from the end inserted into the alignment ring is an attachment system which basically includes a flange formed in the outer wall of the pipe portion. A restraining ring is slipped over the outer diameter of the pipe portion and engages the flange. Holes are spaced around the alignment ring, the flange and the restraining ring in a manner to place bolts through the holes in order to attach the pipe portion to the flange.

Abstract: A coupling comprises a sleeve shaped member (5) which has an external toothing (11), an internal threading (12) and also a tubular guiding portion (13). An annular member (14) surrounding the toothing (11) is rotatably mounted over the sleeve shaped member (5) and has a handle (28) and a reversible catch (22) to engage the toothing. A coupling member (29) to be threadingly connected to the sleeve shaped member (5) has for that purpose an external threading (30) as well as a saw tooth shaped, peripheral bead (31) to obtain a guide function by cooperation with the tubular guiding portion (13). A further coupling member (1) is rotatably but non-displaceably connected to the sleeve shaped member (5) and has in the end surface thereof a groove (3) having a dovetail section and an O-ring (4) inserted thereinto.

Abstract: A device for connecting two pipes for carrying abrasive material under high pressure employs a flange member welded to an end of one of the pipes and a ring member welded to an end of the other pipe. The pipes and both members have the same internal diameter. One or both pipes may be cold formed into a curved shape. An outward-extending rib on the ring member and a shoulder on the flange member are encircled by a tension sleeve having an inwardly directed lip at each end. The tension sleeve comprises two semi-circular halves. One or more continuous circumferential bands encircle the tension sleeve to hold the two halves together against radial separation. An anti-friction bearing assembly between one of said lips and a shoulder on the ring member permits relative turning movement between said pipes. An axial projection on the ring member is received within a recess in the flange member, and seal means are provided between the projection and the recess.

Abstract: Flange for attaching a pipe to a flanged member, the flange consisting of a split disc having matching bore halves which are provided with peripheral serrations.

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: A pipe union and compound seal has a first pipe member with a central passageway, a sealing surface and a flange with a shoulder. The union has a fastening member adapted to slide around the first pipe member. The fastening member has a matching flange to abut the first pipe member's flange and has threads formed along the inner surface of the fastening member. A second pipe member has a matching central passageway and threads formed along its outer surface to receive and engage the fastening member's threads. The second member has a face opposing the first pipe member's sealing surface with a trough in the face for receiving and retaining the compound seal. The compound seal is positioned in the trough and in a first embodiment has a central spring and a U-shaped outer shell surrounding the spring. The open end of the shell is disposed radially inward so that increased pressure within the central passageways increases the sealing engagement between the shell and the pipe union.

Abstract: An adapter pad is provided for use with an inventive split flange to couple a standard S.A.E. pressure flange coupling to a pressure port requiring a step size flange. The adapter pad has a central flow port therein of a diameter corresponding to the flange coupling inner diameter and has an upper face adapted to interface with the terminal face of the flange coupling head and a lower face has an annular gasket groove therein for connection to a hydraulic component. The upper face of the adapter pad may also be provided with a central circular upraised portion having an inner threaded bore for mating with a standard size fitting, which may have any of the standard angular bends. The inventive split flange is provided with a double circular recess, which forms two shoulders for securing either the standard flange coupling or the flange coupling in combination with the adapter pad.

Abstract: A separable coupling, for a plurality of pressure lines, having a flat interface plate with a plurality of apertures located in an annular configuration and with tubular members being secured to the plate in alignment with each aperture. A plurality of tubular studs are supported in a guide ring in the same configuration as the apertures in the interface plate. The guide ring is slidably supported on a mounting plate with the studs passing through holes in the mounting plate. O-rings are positioned in the ends of the studs which are spring loaded to provide a seal around each of the apertures between each of the studs and the interface plate.

Abstract: A fluid-tight pipe coupling for interconnecting two pipe sections, comprising two flanges integral with said pipe sections, respectively, and clip means for clamping said flanges against each other, the engaging faces of said flanges being flat, one of said flanges having a frusto-conical shape whereas the other flange has a cylindrical shape and said clip is formed with a clamping groove of complementary or mating cylindro-conical shape.

Abstract: A thin plastic tube has at the end a continuous or interrupted inclined plane means which collapses the plastic tube end section over a nipple or another tube end. The plastic tube end section is inserted over the nipple or other tube end to be sealed thereby with a locking ring drawn over the inclined plane means. The locking ring is drawn over the inclined plane surfaces to uniformly collapse the tube end section into engagement with the nipple or other tube end with a sealing force and with the locking sleeve in frictional locked engagement therewith.

Abstract: Flanged coupler ends are pressed together by channel-like arcuate segments hingedly and expansibly connected at one end of each segment by a resilient member, and releasably latched together at their other ends.

Abstract: A flange adapted to be arranged on a tube. A plurality of flange parts fit together to define a flange having a central opening for surrounding the outer perimeter of a tube. Each of the flange parts defines at least a portion of the central opening. Each flange part is provided on its surface portion which defines at least a portion of the central opening with at least one protrusion for engaging a corresponding groove in an associated tube in a form-fitting relationship.