Abstract: A pipe coupling for connecting together the ends of two pipes including a tubular casing for fitting around a pipe; tensioning means for tightening the casing around the outer surface of the pipe; and a dynamic axial restraint system comprising at least one resilient gripping ring mounted within the casing for gripping the outer surface of the pipe. The gripping ring includes an outer surface engaging with an inner surface of the casing and adapted to roll against the inner surface of the casing upon axial loading of the pipe; and an inner gripping surface for engaging the outer surface of the pipe. The gripping surface of the resilient gripping ring is adapted such that upon rolling of the outer surface against the inner surface of the tubular casing, the area of the gripping surface in contact with the pipe increases.

Abstract: A single action push to connect fitting for conduit such as tube or pipe. The fitting includes a first fitting component and a second fitting component that are joined or assembled together to form a fitting assembly. The fitting assembly includes a conduit seal device and a conduit retaining device. A conduit may be manually or otherwise inserted into the assembled fitting assembly with a single axial movement and be retained and sealed without need for further action or movement of the fitting components.

Abstract: A press fitting includes a socket defining at one end an opening for insertion of an end of a tube, a sealing ring within the socket, and a gripping ring within the socket, arranged in front of the sealing ring in the direction of insertion of the tube, wherein the gripping ring is provided with at least two weakening features in the form of notches, being reducible in size by deforming the gripping ring when applying a pressing action on the socket such that an inner diameter D2 of the gripping ring is reduced. A joint assembly may include such a press fitting having a tube inserted therein.

Abstract: A key assembly is press fit into an annular space between a box and pin member to resist relative rotation of the box and pin members. The key assembly includes wedge like members that contact one another along complementary tapered surfaces, and when in contact generate radial forces into the box and pin member to secure the connection between the box and pin. The outer wedge is inserted first into the annular space between the box and pin members, and has rows of elongate teeth that project radially outward into contact with an inner surface of the box member. Because the outer wedge is pushed radially outward against the box member rather than axially sliding therebetween, the teeth protrude into the surface of the box member thereby increasing the anti-rotation force created by the outer wedge.

Abstract: A pipe joint is provided with a pressing ring, a pipe or a pipe joint body having a containing section, a tightening element, and a packing ring compressed by being pressed by the pressing ring moved by the operation of the tightening element. The packing ring includes a base section fitted and mounted in the containing section at a rear thereof, a seal section contained within the containing section at a front thereof, and a connection section which connects the base section and the seal section and has a cutout groove. When the packing ring positioned by fitting and mounting the base section in the containing section at the rear thereof is subjected to pressing by the pressing ring, the seal section is bent into the cutout groove and is deformed, and compression caused by the deformation creates a sealed state.

Abstract: In a pipe joint, a tapered male screw thread is provided at one end and a joint connection section which is connected to a joint section is provided at the other end. The tapered male screw thread has a length adapted so that, when the tapered male screw thread has been fastened to a tapered female screw thread formed in an end cap, the entire length is engaged with the tapered female screw thread, and the sealing effect is obtained by a seal member.

Abstract: A pipe coupling device includes a joint body, a C-shaped retaining ring that includes a flange part radially protruding from an outer peripheral surface of the retaining ring, a pressing plate that includes a recessed part configured to house the flange part, and includes a front wall configured to face a rear end of the flange part. The joint body, the retaining ring, and the pressing plate are coupled together in an axial direction. The flange part has a substantially rectangular shape extending along the axial direction, and an inclined surface is formed on at least one of the rear end and the front wall. An inner end of the inclined surface is positioned closer to the joint body than an outer end thereof. The inner end is closer to a center axis of the joint body than the outer end. A gap is formed between the rear end and the front wall.

Abstract: A hydraulic connection includes a connecting nipple, preferably of steel or of another metal, whereby, on the nipple's tube-shaped extension, a hydraulic hose is held by compression by means of a fitting. A swelling element is arranged between the extension and the hydraulic hose, the element being swellable in the hydraulic fluid. If hydraulic fluid were to advance through to the swelling element, the element will swell and block the path to more hydraulic fluid. Furthermore, by swelling, the element deforms the hydraulic hose in a radially outward direction. In this region, the hydraulic hose is held by a fitting in the form of a metal sleeve so that the hose may not be displaced. In this manner, the force of pressure on the hydraulic hose is increased in an annular zone.

Abstract: Formation of a sterile connection includes inserting a first aseptic coupling device into a second aseptic coupling device, removing a first membrane from the first aseptic coupling device and a second membrane from the second aseptic coupling device, and rotating a locking clip on the first aseptic coupling device to compress a first seal member of the first aseptic coupling device with a second seal member of the second aseptic coupling device to form a sterile fluid passageway.

Abstract: A threaded connector that includes a pin end having external threads and a box end having internal threads that are complementary to the external threads has a thread profile that defines at least a portion of either or both of the internal threads and the external threads. The thread profile may include a thread root connecting a first flank to a second flank and the thread root may be at least partially defined by a plurality of tangentially interconnected radii. The plurality of radii may include at least a medial radius, a first distal radius on one side of the medial radius, and a second distal radius on the another side of the medial radius. The medial radius may be larger than the first and the second distal radius. Alternatively, the thread profile includes a thread root connecting a first flank to a second flank that is at least partially defined by a plurality of radii, each radius having a different length and each defining a circular arc.

Abstract: An exhaust outlet elbow includes: a body having an outer wall and an interior wall, the interior wall defining, at least in part, an interior chamber; a connecting surface located above the interior chamber; and an array of threaded holes located about the connecting surface, wherein the threaded holes terminate in the body. A method of manufacturing an exhaust outlet elbow includes the steps of: forming a body having an outer wall and an interior wall, the interior wall defining, at least in part an interior chamber; forming an connecting surface located between the interior and outer walls; and forming an array of threaded holes in the connecting surface.

Abstract: A tubular connection includes a pin member and a box member. The pin member has a first thread structure and a helical torque shoulder spaced axially along the pin member from the first thread structure. The box member has a second thread structure and a second helical torque shoulder spaced axially along the box member from the second thread structure. The first thread structure and the second thread structure are sized and located to control a stab position of the tubular connection, and in the stab position the first helical torque shoulder does not engage or axially overlap with the second helical torque shoulder. A method of joining tubular members utilizing a helical torque shoulder is also provided.

Abstract: In a clamp device, a main clamp body includes an elongated tightening groove delimited by groove-forming wall sections. First and second lobe parts are disposed in the vicinity of end portions of two such tightening grooves. The main clamp body presents a ring shape when bolt and nut are mounted in position on the lobe parts disposed facing each other. Each of the lobe parts includes sidewall sections respectively contiguous to the groove delimiting wall sections that delimit the tightening groove. Each lobe part also includes a curved outer end wall section interconnecting the sidewall sections at an outer end of each lobe part and a seat surface wall section contiguous to the sidewall sections and to the outer end wall section. The seat surface wall section provides a bolt/nut seat surface. An arcuately shaped fulcrum part is formed on the curved outer end wall section of each lobe part.

Abstract: A pipe clamp assembly includes a band having an inner annular seal element wrappable around a pipe, opposing clamp members extending from the band, and tightening elements for clamping together the clamp members. The tightening elements are positioned at or near opposite ends of each of the clamp members. A stiffening element is constructed of an elongate beam with mounting holes near opposite ends of the beam. The tightening elements pass through the mounting holes of the stiffening element. There are no tightening elements along a length of the stiffening element between the mounting holes.

Abstract: A repair clamp bolt retaining assembly having a band with first and second edges and a gap there between, first and second lug elements extending from the band on opposite sides of the gap, multiple bolts configured to extend transversely from bolt receiving openings in the first lug element to bolt receiving openings in the second lug element, and a bolt retainer on at least one of the multiple bolts on the inner side of the opening in the second lug element and configured such that the bolt retainer does not pass through the openings in the second lug element.

Abstract: A female component for a tubular hydrocarbon working string subjected to dynamic bending strength includes a tapered female threading cooperating with a male threading to form a rigid mutual connection of tubular elements, a free end and female sealing surface disposed between the free end and the female threading, the female sealing surface to contact in a made up condition with a male sealing surface to form a metal-metal seal, and an annular groove provided between the free end and the female sealing surface, leaving an axial distance greater than zero between the free end and a transition region outwardly of the female sealing surface, and a radial distance greater than zero between the female sealing surface and a chamfer at the free end, the groove including borders formed by the chamfer and a portion of the transition region protecting the female sealing surface prior to makeup.

Abstract: A plug-in coupling for a pipe, especially for water conduits, includes a coupling sleeve receiving the pipe end, includes a sealing ring which is inserted into the coupling sleeve, and includes a locking ring which is mounted upstream of the sealing ring in the plug-in direction of the pipe end and forms retaining claws which protrude with respect to the pipe end and are inclined in the plug-in direction. The plug-in coupling also includes an annular body which is similarly mounted upstream of the sealing ring and is supported axially in the plug-in direction in relation to the coupling sleeve. The annular body includes a protective ring for surrounding the face end of the pipe end from the outside, which protective ring is connected via a predetermined breaking connection.

Abstract: A connecting apparatus for creating a connection to a measuring instrument or to a valve block/valve with a measuring instrument, and a connection to a pipeline or to a metering orifice device installed in a pipeline comprises: a first connecting device that provides a sealing connection to the pipeline or to the metering orifice device with a first recess extending through in the longitudinal direction, and a second connecting device that provides a sealing connection to the measuring instrument or to the valve block/valve with a second recess extending through in the longitudinal direction. The first and second connecting devices are interconnected with sealing effect. The connecting unit is designed so that the sealing connection can be created solely by rotation of the connecting unit without rotating the first and second connecting devices.

Abstract: A system includes a conduit and a gasket assembly. The conduit includes a body and has a bell defining an opening disposed at one end of the conduit. The bell includes a ridge defining a circumferential internal groove, a sloping portion defining an internal recessed area and disposed adjacent to the ridge, and an abutment end inwardly extending from the sloping portion in a direction that is perpendicular to a central axis defined by the bell. The gasket assembly is disposed within the internal groove. The gasket assembly includes a plurality of gripping inserts each comprising a hollow body and an elastomeric gasket having a circular shape and being disposed within the hollow bodies defines by the plurality of gripping inserts.

Abstract: A vessel, such as a rocket motor tube, comprised of an insert, and a joint that allows the insert to decouple from the vessel to relieve pressure when subjected to excessive temperatures and/or a predetermined temperature or temperature range.