A non-metallic fluid coupling is disclosed with electrical current transferring elements incorporated therein. The coupling is formed of two C-shaped halves of non-metal, non-conducting material, where each halve includes integral hinges and latches, or hinges and latches made of a common material with the C-shaped halves. A non-metallic, substantially rigid sealing sleeve can be incorporated into the coupling to seal the coupling while maintaining the strength of the coupling.

A preassembled combination connects a captured pipe element to a second pipe element. First and second segments are connected end to end surrounding a central space for axially receiving the second pipe element. The segments are configured to be drawn toward one another and into engagement with the pipe elements. An annular body forms the captured pipe element. An end face of the captured pipe element is retained within the central space by engagement between a bead projecting from a sealing surface of the captured pipe element and the coupling assembly.

A preassembled combination connects a captured pipe element to a second pipe element. First and second segments are connected end to end surrounding a central space for axially receiving the second pipe element. The segments are configured to be drawn toward one another and into engagement with the pipe elements. An annular body forms the captured pipe element. An end face of the captured pipe element is retained within the central space by engagement between a bead projecting from a sealing surface of the captured pipe element and the coupling assembly.

This disclosure provides systems, methods, and devices for a coupling device. In an aspect, a coupling device is configured with at least one fastener for compressing and also opening the coupling and a pushing bolt configured to apply an unlocking force on an object to be coupled by the coupling device. In another aspect, a method for engaging or disengaging a coupling device is disclosed. Other aspects and features are also claimed and described.

A pipe (12) coupling assembly (16, 116) includes a body (64, 120), a rib (65, 122), and teeth (56, 124). The body (64, 118) has an outer diameter and first and second inner diameter sections (68, 128, 70, 130). The first inner diameter section (68, 128) is wider than the second inner diameter section (70, 130). The rib (65, 122) extends around the first diameter section (68, 128) and projects radially inwardly therefrom. The teeth (56, 124) are situated within the second inner diameter section (70, 130) and project radially inwardly toward a central axis (38, 134) of the body (64, 120).

A clamp assembly, for mounting around a tool joint coaxially joining cylindrical upper and lower workpieces, comprises an upper collar assembly and a lower collar assembly, each having semi-cylindrical left and right collar segments. The left and right collar segments of each collar assembly are removably connectable to each other by threaded fasteners to form the collar assembly. The upper and lower collar assemblies are coaxially mountable around the upper and lower workpieces, respectively, such that tightening the fasteners will urge the upper and lower collar assemblies to grip the upper and lower workpieces, respectively, and thus to provide increased resistance to relative rotation between the two workpieces about the tool joint axis. The upper and lower left collar segments, and/or the upper and lower right collar segments, may be interlockingly and radially slidable relative to each other to accommodate differences between the outside diameters of the two workpieces.

Integrated joining system in tubular fluid distribution elements includes a tubular element having a first enlarged cup-shaped end and a second opposite end with a radial protuberance, the first end equipped with a flange having an external concentric edge and an inside cavity capable of receiving and retaining an elastomeric gasket, the first end having a concentric radial groove adjacent to the edge, and having an end edge protruding from the tubular element, the assembly of the tubular elements occurs by inserting the second end of a tubular element inside the cup-shaped end of a similar tubular element up to a shoulder of the cup-shaped end with the edge of the second end having passed the gasket, a junction block including two semicircles placed around the tubular element at this concentric edge and end edge which, by tightening by clamping elements, crimps the two tubular elements.

A conduit coupling assembly having an arcuate middle ring extending axially between first and second arcuate clamp rings, an arcuate gasket configured to be positioned radially between the first clamp ring and the fluid conduit, the middle ring comprising an outwardly extending annular flange disposed axially between and radially overlapping at least a portion of the first clamp ring and at least a portion the gasket, the annular flange comprising an axially extending retention rim axially overlapping and disposed radially between a first retained portion of the gasket and an opposed portion of the first clamp ring, the retention rim and the gasket forming a gasket retaining element restraining radial movement of a side surface of the gasket relative to the annular flange of the middle ring.

A preassembled combination connects a captured pipe element to a second pipe element. First and second segments are connected end to end surrounding a central space for axially receiving the second pipe element. The segments are configured to be drawn toward one another and into engagement with the pipe elements. An annular body forms the captured pipe element. An end face of the captured pipe element is retained within the central space by engagement between a bead projecting from a sealing surface of the captured pipe element and the coupling assembly.

A preassembled combination connects a captured pipe element to a second pipe element. First and second segments are connected end to end surrounding a central space for axially receiving the second pipe element. The segments are configured to be drawn toward one another and into engagement with the pipe elements. An annular body forms the captured pipe element. An end face of the captured pipe element is retained within the central space by engagement between a bead projecting from a sealing surface of the captured pipe element and the coupling assembly.