Abstract: A metal plate includes: a recessed portion provided at one end surface by cutting out the metal plate in a planar direction of the metal plate, the recessed portion having an engaging portion inside the recessed portion; and a protruding portion provided at a position on another end surface, the position corresponding to that of the recessed portion, the protruding portion protruding in the planar direction, the protruding portion being engaged with the engaging portion by applying a bending process such that the engaging portion is hooked by the protruding portion, wherein a length from a proximal end portion to a distal end portion of the protruding portion before the bending process is applied is equal to or less than a depth of the recessed portion at a position of the recessed portion, the position facing an end surface of the proximal end portion of the protruding portion.

Abstract: A component for a fuel injection system, in particular a high-pressure fuel injection system, includes a base body which is implemented in a tube-shaped manner at least sectionally. A tubular section of the base body is implemented having a longitudinal bending along a longitudinal axis of the tubular section which perpendicularly intersects the cross sections of the tubular section. At the longitudinal bending of the tubular section, the base body is implemented in such way that an ovality of the cross sections of the tubular section is reduced and/or smaller than 8% at the longitudinal bending.

Abstract: A pipeline plug includes a pressure head; a seal assembly; a seal expansion ring; a plurality of gripper bodies, a sliding gripper, and an actuator. Each gripper body is coupled to the seal expansion ring. Radial expansion of the gripper bodies supports radial expansion of the seal expansion ring. Additionally, radial expansion of the seal expansion ring supports radial expansion of the gripper bodies. The sliding gripper is slidingly coupled to a radially outer surface of the gripper body.

Abstract: A component of an electrical system that includes an electrical system component structure and a thermal insulating structure for thermally insulating at least a portion of the electrical system component structure. The thermal insulating structure includes a mixture with an inorganic binder, inorganic filler particles, and water. The thermal insulating structure also includes a fabric with inorganic fibers in the form of a fiber structure. The fabric is impregnated with the mixture so as to form a pliable binder structure. The pliable binder structure is positioned on at least a portion of the electrical system component structure, and the pliable binder structure becomes a rigid binder structure in response to being dried, cured or otherwise hardened.

Abstract: Methods of sealing tubulars are disclosed herein, which methods may include: providing a patch plug assembly that includes: a shaft; a wedge coupled to the shaft; a slip coupled to the shaft; a plug slidably coupled to the wedge; and a ferrule disposed between the wedge and the plug; pushing the slip against the tubular; pushing the plug against the ferrule after the slip is pushed against the tubular; pushing the ferrule against the wedge after the plug is pushed against the ferrule; and pushing a plug portion of the plug against an inner surface of the tubular.

Abstract: A foreign material exclusion device that is adapted to seal an area of a construction, such as a tube or pipe, from foreign material or debris temporarily, wherein the device has a resilient body for holding the device within a particular construction. The device also includes a post extending through the body and a base connected to a first end of the post, the base including a flange for maintaining the body on the post. The device further includes a cap that is securely locked to a second end of the post to prevent the post being withdrawn from the cap. The device body is captured between the base and cap.

Abstract: The present disclosure relates generally to duct liner insulation products for curvilinear ducts, and more specifically relates to methods and materials to universally fit duct liner insulation for lining oval ducts in air conditioning, heating, and ventilating (HVAC) systems. A duct liner insulation for a curvilinear duct is provided that includes an insulation layer configured to line an interior surface of a curvilinear duct when installed within the curvilinear duct. The duct liner insulation also includes an elastically deformable layer configured to compress the insulation layer against the interior surface of the curvilinear duct when installed within the curvilinear duct such that the insulation layer extends substantially uniformly around an inner periphery of the curvilinear duct.

Abstract: In one aspect, centrifuge feed pipes are described herein having design and architecture for mitigating wear during centrifuging operations. In some embodiments, a centrifuge feed pipe comprises a feed material inlet, a feed material outlet, and a conduit body extending along an axis between the feed material inlet and outlet, the conduit body having a variable inner diameter at one or more locations along the axis. In being variable, the inner diameter is not uniform over all radial positions of the inner diameter.

Abstract: On example provides a containment sleeve for a pressurized piping system including a main body comprising a pliable fabric extending in longitudinal and transverse directions. The main body includes an exterior major surface and an opposing interior major surface, first and second opposed transverse edges, first and second opposed longitudinal edges, and a number of pleats extending from the interior major surface, each pleat having opposing sides of the longitudinal pleat being sewn together with breakaway stitching at a base of the pleat at the interior major surface. A number of transversely extending straps disposed on the exterior major surface between the first and second longitudinal edges, the straps to secure the main body about a portion of the piping system with the interior major surface facing the piping system.

Abstract: A reinforced multi-layer hydraulic hose, including a plurality of anti-pressure layers with coiled wires or yarns at a winding angle of about 54.7° with respect to a longitudinal central axis of the hose, and at least one anti-tensile stress reinforcing layer that improves the resistance to the axial force of the hose and has at least one plait or coil of steel wires at a winding angle of less than 35°, in which the hose, owing to the high resistance to the axial force, can be used in a rectilinear configuration to supply a hydraulic fluid also in the presence of significant axial forces.

Abstract: A hydrophobic separating plug is used to separate and inhibit mixing between a first material and a second material. The plug may be formed of a hydrophobic material or may be formed of a plurality of pigs that are a solid or semi-solid material that may be hydrophobic or may have a hydrophobic or superhydrophobic surface. The plurality of pigs may be disposed within a hydrophobic fluid and the pigs may be neutrally buoyant in the hydrophobic fluid. The hydrophobic separating plug has dimensions sufficient to substantially fill the cross-section of pipe sections in which it is located and to define a leading edge and a trailing edge such that the leading edge is in contact with a first material and the trailing edge is in contact with a second material. Advantageously, mixing between the first material and the second material is inhibited by the plug.

Abstract: A device for renovating damaged line walls proximate the connection of an auxiliary line to a main line, includes a movable support element, wherein a cover element and an expandable element are arranged on the support element. The expandable element can be positioned in the auxiliary line in or through a first recess in the cover element, and can lie against the wall of the auxiliary line to form a shell. The cover element has a second recess for introducing a curable viscous renovation compound from a storage device into space between the shell and the main and auxiliary line walls by a transport element. A heating device can be integrated into the cover element, the storage device, and/or the transport element proximate the second recess and/or operatively connected to the cover element, the storage device, and/or the transport element in the region of the second recess.

Abstract: A flow stopping tool for pipelines is disclosed, wherein the flow stopping tool comprises an inflatable balloon-like element that is in connection to a pressure rod. A hose is used for inflating the balloon-like element with a gas or a fluid, such that the balloon-like element can block a flow in a pipeline. A first end of the hose is in connection to the pressure rod and a second end of the hose is in connection to the balloon-like element. A part connecting the hose with the inflatable balloon-like element, but outside said balloon-like element, comprises a shock absorber for securing the hose-balloon connection.

Abstract: A material for use in lining pipes is disclosed. A warp-knitted tubular fabric (24, 64) in which the stitch used (for example a tricot stitch) is of a type that reconfigures as the tube is expanded radially to contract longitudinally is sufficiently flexible and compressible to enable it to conform to pipe structures. The fabric of this invention is infused with resin, which is cured once the liner is in place within the pipe. Potentially, this fabric may be thinner than known prior art materials, but exhibits comparable strength and conformability, which are necessary characteristics in the repair or rehabilitation of pipes. The use of a thinner fabric material reduces constriction of the pipe bore by repair and also offers the potential for cheaper lining material, as less resin is required. The fabric may be knitted from glass fibre yarn, which is non-toxic and a stronger material than generally used in the prior art.

Abstract: An accumulator includes a pressure vessel including a first section and a second section joined to each other via a joint portion and a partition portion separating an interior space of the pressure vessel into a liquid chamber and a gas chamber so that a volume ratio between the liquid chamber and the gas chamber in the pressure vessel is variable. The first section includes a thread portion for fastening the accumulator to a support member. The second section includes an abutting portion disposed opposite to the thread portion across the joint portion in an axial direction of the thread portion and configured to abut on the support member when the accumulator is fastened to the support member.

Abstract: A linking pin made of elastic plastic having linking pin halves is used to link segments in the longitudinal direction to assemble a rehabilitation pipe. The linking pin includes a tubular portion having on its outer periphery surface first and second protrusions separated by a distance of twice the thickness of the side plate of the segment and a rear protruding portion that enlarges in diameter due to elasticity. The linking pin is inserted into one segment and the other segment so that the side plates of both the segments come between the first and second protrusions. The linking pin is then enlarged in diameter due to elasticity to fit the side plates between the first and second protrusions and link both the segments in the longitudinal direction. The linking pin that is enlarged in diameter can be reduced in diameter to unlink both the segments.

Abstract: An unbonded flexible pipe with a length and bore and an offshore installation are disclosed. The pipe comprises an internal pressure sheath, at least one metallic armouring layer surrounding the internal pressure sheath and at least one additional layer surrounding the metallic armouring layer. The metallic armouring layer comprises helically wound armouring elements which are at least partly covered by a viscous fluid having a kinematic viscosity of at least about 1000 cSt (ASTM D445 or ASTM D2170). The at least one additional layer surrounding the metallic armouring layer provides a gas escape route radially outwards from the metallic armouring layer beyond an outermost layer of the least one additional layer or to a lengthwise gas escape path in or between the at least one additional layer.

Abstract: A method for detecting and repairing external diseases of a buried drainage pipeline includes steps of: S1, controlling a robot to enter the pipeline to perform comprehensive detection of pipeline diseases; S2, analyzing detected pipeline diseases with a computer terminal based on detection results of the robot, and determining locations of external diseases of the pipeline; S3, controlling the robot to detect a depth of the external diseases of the pipeline relative to a ground surface; S4, determining a projection position of the external diseases of the pipeline on the ground surface according to detection results of the step S2, and drilling a hole from the ground surface; determining a drilling depth according to detection results of the step S3, and inserting a grouting pipe; and S5, grouting and repairing the external diseases of the pipeline through the grouting pipe.

Abstract: Segments are linked in the circumferential direction to assemble a pipe unit. A link bolt is used to link the segments of the pipe unit in the longitudinal direction to assemble a rehabilitation pipe inside an existing pipe. An elastically deformable hollow cylindrical member having a tongue is attached to the link bolt between the inner plates. The outer diameter of the cylindrical member is larger than the insertion hole of the inner plate through which the link bolt can pass. This allows the link bolt to be prevented from falling out of the segment when the link bolt moves in the longitudinal direction due to gravity. When a force is applied to the tongue from below, the cylindrical member is elastically deformed and can be removed from the link bolt.

Abstract: A limb for a breathing circuit manufactured from very thin walled polymer materials has an elongate axial reinforcing spine lying freely inside the conduit and fixed to each end connector. The spine is laterally compliant but axially stiff. The spine provides resistance to tensile and compressive loads on the conduit, including that induced by prevailing internal pressures.