Abstract: A pair of first leg portions of a retainer have first taper surfaces at distal end sides on surfaces on the side to which a first pipe is to be inserted. The first taper surfaces cause the retainer to move from an initial position to an insertion position by an axial-direction pressing force from an annular protrusion, during a period until the first pipe is inserted to a regular position. During the period until the first pipe is inserted to the regular position, a pair of second leg portions restrict the retainer from moving from the initial position to a confirmation position. In a state in which the first pipe is inserted to the regular position, the pair of second leg portions allow the retainer to move from the initial position to the confirmation position.

Abstract: A method for coupling a tube to a tube fitting includes radially outwardly expanding a tubular compression collar from a constricted state to an expanded state, the compression collar having a throughway extending there through and being made of a resiliently flexible material. An end of the tube is inserted within the throughway of the expanded compression collar, the tube bounding a passageway. A tube fitting is inserted within the passageway of the tube. The compression collar is allowed to resiliently rebound back towards the constricted state so that the compression collar pushes the tube against the tube fitting.

Abstract: To provide a connector that facilitates assembly while having a great axial-direction engagement force, a male joint member to be connected to a first member has a plurality of outer protrusions, and a female joint member to be connected to a second member has a plurality of inner protrusions. A circumferential-direction gap between adjacent two inner protrusions allows the outer protrusion to pass therethrough. The female joint member has, in an area opposed to inner protrusion back surfaces, a circular space that allows the plurality of outer protrusions to relatively rotate therein. The inner protrusion back surfaces of the plurality of inner protrusions are engaged in the axial direction with outer protrusion back surfaces of the plurality of outer protrusions that have passed through the circumferential-direction gaps between the plurality of inner protrusions.

Abstract: In a sectional-type high wear-resistant double-layer straight tube and a method for preparing the same, the double-layer straight tube includes a protective outer tube and a sectional-type wear-resistant inner tube. The protective outer tube is nested outside of the sectional-type wear-resistant inner tube; the sectional-type wear-resistant inner tube includes at least two wear-resistant inner tube sections; and the wear-resistant inner tube sections are connected sequentially. The sectional-type wear-resistant inner tube at least includes a left inner tube section, a right inner tube section, and one or more middle inner tube section. The wear-resistant straight tube can greatly prolong the service life of the pipeline so that the cost performance of the pipeline is increased by more than a few times. It would also easily achieve mass production, the quality is stable and reliable, and the safety performance is high.

Abstract: This utility model discloses a kind of outdoor furniture with a non-welded and quick-installed structure, including a furniture body, is characterized in that the connection of each pipe of the furniture body mentioned is realized through the interference fit between the fittings and adjacent pipes. The utility model eliminates the welding and polishing processes and simplifies the assembly process through the interference fit of the two-coupling, three-coupling and four-coupling fittings with pipes for the early stage brackets, greatly saving the labor cost and production cost.

Abstract: An end-fitting and an unbonded flexible pipe, where the unbonded flexible pipe includes from the inside and out an internal pressure sheath, at least one armor layer and an outer sheath, the end-fitting further includes a sealing element. The sealing element includes a seal casing concentrically arranged around the internal pressure sheath, the seal casing includes a recess in which a first sealing element is concentrically arranged around the internal pressure sheath such that the surface of the first sealing element at least forms a line contact with the internal pressure sheath, and a second sealing element is concentrically arranged around the internal pressure sheath in the recess such that the surface of the second sealing element at least form a line contact with the surface of the seal casing and form a line contact with the surface of the first sealing element.

Abstract: Multiple embodiments of thru-hull adapters for underwater pressure-proof housings are described. The adapters are suitable for use with pressure proof housings including spheres, cylinders, flat and domed end caps. The thru-hull adapter is comprised of a pressure-proof circular disk that is sized to fit over a through hole drilled through the outer wall of a pressure-proof housing, a hollow threaded shaft that attaches to the circular disk and extends into the interior of the pressure proof housing, a fastener stack including washers and a jam nut that when tightened pulls the circular disk against the outer wall of the pressure proof housing and, with a bonded or o-ring elastomeric seal, forms an air and water tight seal between the thru-hull adapter and the wall of the pressure proof housing.

Abstract: A support assembly comprises a mounting bracket and a coupling component. The mounting bracket comprises a first material and has an engagement surface defining a void along a first axis. The coupling component comprises a second material, which is different than the first material. The coupling component has a first end, a second end, and an intermediate portion. The intermediate portion extends through, and partially fills, the void defined by the mounting bracket. The intermediate portion defines a fluid passageway about the first axis within the void and also presents a locking surface. The locking surface abuts the engagement surface to prevent rotation of the coupling component with respect to the mounting bracket.

Abstract: A coupling body having an opening and configured to receive a pipe in the opening. The coupling body is made of a metal material and the pipe is made of a different metal material to the metal material of the coupling body. An insulating sleeve lines at least a portion of an inner periphery of the coupling body adjacent the opening. The insulating sleeve is made of non-metallic material and is configured to serve as a physical non-metallic barrier between the metal material of the coupling and the different metal material of the pipe so the different metal material of the pipe does not contact the metallic material of the coupling body.

Abstract: A joint having a male joint member and female joint member with enhanced ease of assembly, in which a raised stop on the male joint member is limited to displacement between a constriction on the female joint member and a locking ring segment, in which the locking ring segment and constriction are separated by an unobstructed traverse region that allows the male joint member to slide axially when under stress without separation from the female joint member, and in which a compressible spacer is installed between the male joint member and female joint member to ensure that the raised stop is installed in an intermediate position between the constriction and the locking ring segment. The compressible spacer withstands forces associated with assembly but allows the joint to compress during extreme events to prevent failure of the joint during extreme events, such as earthquakes, floods, and landslides.

Abstract: A method for connecting a hose with a tubular coupling with a pressure sleeve. The pressure sleeve is crimped at least at two sites separate from one another in the axial direction such that at least two crimp bands extending in the circumferential direction are developed, wherein each crimp band completely caps at least one peripheral groove that is developed on the inner surface of the pressure sleeve. Also disclosed is a method for connecting a hose with a tubular coupling with a pressure sleeve that is crimped at least at three sites separate from one another in the axial direction such that at least three crimp bands extending in the circumferential direction are developed, wherein at least one crimp band completely caps at least one peripheral groove that is developed on the inner surface of the pressure sleeve. Tubular couplings, pressure sleeves and combinations are also provided.

Abstract: A pipe coupling assembly includes a band having an inner annular seal element wrappable around a pipe, opposing clamp members that extend from the band, at least one tightening element for clamping together the clamp members, and a bridge secured to the band with one or more bridge securing fasteners. The bridge spans a gap between the opposing clamp members. Anti-shearing structure is coupled to the bridge and the band, configured to prevent shearing or deformation of the bridge securing fasteners.

Abstract: A liquid junction assembly for providing a flow connection between two tubular conduits. The assembly includes respective bodies configured to define elongated passages of respective first and second cross sections to receive and locate the respective tubular conduits, a plate with at least one hole therethrough of a third cross section smaller than the first and second cross sections, and a seat for the plate, defined in a face of one or both of the bodies. The bodies and the plate are assembled with the plate in the seat and the elongated passages and the hole aligned along a common axis.

Abstract: A coupling that includes a female coupling member having at least one electrically conductive ring on an inner mating surface; a male coupling member having at least one electrically conductive ring on an outer mating surface, the outer mating surface sized to fit within the inner mating surface of the female coupling member; and wherein when the male coupling member is inserted into the female coupling member, alignment of the at least one electrically conductive ring of the female coupling member with the at least one electrically conductive ring of the male coupling member indicates whether the female coupling member and the male coupling member are fully engaged.

Abstract: A clamp for a pipe includes: a crevice corrosion-resistant member surrounding the outer surface of the pipe; and a body that is assembled to allow the crevice corrosion-resistant member to be disposed inside thereof and has opening walls formed at both ends thereof, each of the opening walls having an opening hole through which the pipe passes, wherein the crevice corrosion-resistant member is provided to have the same length as a distance between the opening walls, and thus ends of the crevice corrosion-resistant member can be supported by the opening walls, respectively.

Abstract: A connector can include multiple circumferentially distributed engagement structures which clamp two hubs together, and a biasing device which biases the engagement structures toward an open configuration thereof, in which the hubs are separable from each other. Another connector can include multiple circumferentially distributed engagement structures, each having a recess which receives hubs therein, and a sleeve which encircles the engagement structures and prevents the engagement structures from displacing radially outward from an open configuration thereof, in which the hubs are separable from each other. A method of making a connection to a wellhead can include applying pressure to a connector, thereby allowing multiple circumferentially distributed engagement structures to displace outward to an open configuration thereof, and displacing one hub of the connector into contact with another hub secured to the wellhead, the engagement structures axially aligning the hubs during the displacing.

Abstract: Example aspects of a gasket bridge for an end ring assembly and a method for using an end ring assembly are disclosed. The gasket bridge can comprise an arcuate body defining an inner surface, an outer surface, a first bridge end, and a second bridge end, the arcuate body defining a bridge radius of curvature; a first ramp extending from the first bridge end; a second ramp extending from the second bridge end; and a projection extending from the inner surface.

Abstract: A connector for a component of a medical breathing circuit. The connector comprises an inner body and an outer body. The outer body is configured to be slidable along the inner body between each of an inoperative orientation and an operative orientation with respect to the inner body. The outer body and the inner body are configured to be in engagement or in an operative association with each other when the outer body is provided in the operative orientation. The outer body and the inner body are disengaged from each other or in an inoperative association with each other when the outer body is provided in the inoperative orientation. At least one or each of a surface of the inner body or a surface of the outer body comprises of a surface relief feature(s) providing for a resistance to the outer body being moved from the inoperative orientation to the operative orientation.

Abstract: A clamping device suitable for securing a pair of flanges together is a unitary strip of a polymeric material that defines a multiplicity of clamping segments linked by flexible strip portions. The ends of the unitary strip define latching elements shaped to interconnect when the ends are brought together. Along one face of the unitary strip the clamping segments define teeth that project at opposite sides of the unitary strip, and these teeth define faces that are adapted in use to contact outer faces of the pair of flanges. Each clamping segments may define two opposing teeth. The clamping device can be operated with a single hand, being bent around the outside of the pair of flanges so that the clamping segments engage opposite faces of the pair of flanges and hold them together, and the latching elements are interconnected.

Abstract: A pipe connecting seat has a sleeve and two positioning members. The positioning members are disposed on the sleeve at a spaced interval. Each one of the two positioning members has a positioning arm and a positioning pin. The positioning arm is openably, positionably, and pivotally disposed on the sleeve, and has at least one reinforcing protrusion for increasing strength of the positioning arm. The positioning pin is disposed on the positioning arm and is located out of the positioning arm for positioning the positioning arm and limiting a pivoting opening range of the positioning arm. When the pipe connecting seat is connected to two pipes, the two positioning members are always located on the sleeve and are not prone to loss. The operating convenience of the pipe connecting seat is increased.