Abstract: An insulated assembly, including a pipe and a substantially rigid insulation board, is provided. The pipe includes a cylindrical outer surface defining a first diameter. The insulation board is disposed around the outer surface of the pipe and includes an inner surface defining a second diameter. The second diameter is substantially equal to the first diameter. The inner surface includes a plurality of grooves. Each of the plurality of grooves includes first and second opposed sidewalls. The insulation board includes a material having a compressive strength and a flexural strength, the compressive strength includes a value between fifteen pounds per square inch and one hundred pounds per square inch, and the flexural strength includes a value between forty pounds per square inch and one hundred pounds per square inch.

Abstract: A pipe-reinforcing implement with excellent workability during attachment to the piping is provided. The reinforcing implement 1 is to be arranged along an outer circumferential face Xb of a metal piping X, in a state surrounding the piping in a circumferential direction, in which creep may occur due to a high temperature and pressure fluid inside, and configured to reinforce creep strength of the piping, the reinforcing implement including a plurality of reinforcing members 11 arranged in the circumferential direction to be joined and a plurality of laminate members 12, 13, 14 overlaid in a radial direction of the piping to configure each of the reinforcing members.

Abstract: A segment is fitted by screw-fastening for implementing a fluid transport pipe for transporting a fluid, the pipe including an inner wall and an outer wall, the segment including an inner tube and an outer tube that define an annular space between them. The segment includes in particular one heating duct placed in its annular space and opening out at either end of its annular space, the annular space being designed to be closed hermetically in order to enable it to be brought to a reduced pressure. A method of manufacturing the segment and a method of implementing the fluid transport pipe is described.

Abstract: A thread protector comprises a hollow cylindrical body with a substantially closed end and a threaded inner annular wall extending from the substantially closed end. An annular ring extends inwardly from the substantially closed end. The annular ring has a sloped wall which is spaced-apart from and faces the threaded inner annular wall.

Abstract: A fluid pulse dampener with automatic pressure-compensation is provided. A system of chambers and channels in the dampener creates an internal feedback mechanism that increases or decreases a compensating pressure on the membrane in response to increases or decreases in the pressure of a fluid moving past the other side of the membrane. Variations of the pulse dampener allow for the input and/or output of gas flow to be restricted or increased as may be desired.

Abstract: A variable orifice assembly includes a housing defining a flow orifice therethrough and configured to be connected in fluid communication between two pipes of a particle conveyance system. The assembly includes a plurality of blades pivotally mounted to the housing to pivot between a retracted position and an extended position. Each blade includes a gas path edge. In the retracted position, the gas path edges of the blades conform to the flow orifice. In the extended position, the blades extend inward from the flow orifice wherein the gas path edge of each blade is spaced apart from the other blades.

Abstract: A bending restrictor assembly has a pipeline section, a first pipe section affixed to the pipeline section overlying the outer diameter of the pipeline section, a second pipe section affixed to the pipeline in spaced relation to the first pipe section and overlying the outer diameter of the pipeline section, a first collar element having at least a portion positioned between the first and second pipe sections in which the portion overlies the outer diameter of the pipeline section, a second collar element having at least a portion positioned between the first and second pipe sections in which the portion overlies the outer diameter of the pipeline section, and at least one stop member cooperative at the first and second collar elements so as to limit the relative movement of the first and second collar elements so as to limit the bending of the pipeline section.

Abstract: A hose assembly, preferably a garden hose assembly, including a fabric jacketed tube that is lightweight, durable and versatile. The tube is radially expandable when pressurized by a fluid, such as water, but does not increase in length. The two layer construction of the hose assembly allows for storage in relatively compact spaces, similar flow rates, approximately one-half the weight, and improved maneuverability when compared to conventional hose constructions. In one embodiment the jacket is formed around the tube in a continuous process that welds a fabric, preferably using hot air, into the jacket. The welded joint forms a region of jacket that is preferably about twice the thickness of the rest of the jacket. This thicker region results in a stiffer section of jacket that makes the hose more controllable and consistent in use.

Abstract: Device for a double hose structure with an inner main hose and an outer cover hose defining an annular space giving buoyancy in water. At least one end is provided with a coupling member forming a mount for the main hose and the cover hose which at a free end merges into a threaded portion for connecting the hose assembly to an auxiliary connection. The coupling member comprises an inner coupling sleeve connected to one end of the main hose and an outer coupling sleeve connected to the cover hose, the inner and outer coupling sleeves being mutually connected forming a liquid tight termination of the annulus by a ring-shaped plate. The plate is attached with screws through holes only to the outer sleeve, the plate being forced against a shoulder of the inner coupling sleeve by a ring nut with internal threads matching external threads on the inner sleeve.

Abstract: A hose assembly, preferably a garden hose assembly, including a fabric jacketed tube that is lightweight, durable and versatile. The tube is radially expandable when pressurized by a fluid, such as water, but does not increase in length. The two layer construction of the hose assembly allows for storage in relatively compact spaces, similar flow rates, approximately one-half the weight, and improved maneuverability when compared to conventional hose constructions. In one embodiment the jacket is formed around the tube in a continuous process that welds a fabric, preferably using hot air, into the jacket. The welded joint forms a region of jacket that is preferably about twice the thickness of the rest of the jacket. This thicker region results in a stiffer section of jacket that makes the hose more controllable and consistent in use.

Abstract: Segments are linked in the circumferential length to assemble a pipe unit, which is linked to another pipe unit using a link bolt to install a rehabilitating pipe inside an existing pipe. An elastically deformable clip having a cylindrical cavity with a notch is attached to the link bolt between the inner plates of the segment. The clip grips the link bolt at the cavity thereof that is enlarged due to elastic deformation. When the link bolt is moved in the direction opposite the insertion direction, the clip that grips the link bolt hits the inner plate of the segment to limit the movement of the link bolt in the opposite direction and prevent the link bolt from falling out of the segment.

Abstract: A variable orifice assembly includes a housing defining a flow orifice therethrough and configured to be connected in fluid communication between two pipes of a particle conveyance system. The assembly includes a plurality of blades pivotally mounted to the housing to pivot between a retracted position and an extended position. Each blade includes a gas path edge. In the retracted position, the gas path edges of the blades conform to the flow orifice. In the extended position, the blades extend inward from the flow orifice.

Abstract: A heat-shrinkable slitted tube includes a tube main body capable of bending into a tube shape and which shrinks due to application of heat; and a heat-resistant tape which, in a closed state where the tube main body is deformed so as to close a slit extending in a length direction, fastens together areas proximate to two end portions of the tube main body so as to maintain the closed state. In the heat-shrinkable slitted tube, in a case where, by affixing the heat-resistant tape to the tube main body such that one of the end portions is positioned at a short-direction center portion of an indicator of the heat-resistant tape, the other end portion is brought together with the end portion to achieve the closed state, the heat-resistant tape is affixed so as to intervene between the areas proximate to the two end portions.

Abstract: A tube comprising a tag (30). The tag (30) comprising tube service data and at least one more data of the following group of data: tube identification data, tube manufacture data, and tube operation data. The tag (30) allows the data to be read, written, and updated electronically, and the tag (30) provides data for servicing the tube (10). A method for servicing such a tube, the method comprising: providing the tag (30) on the tube (10); reading electronically the data from the tag (30) for servicing the tube (10); servicing the tube (10) according to the data read; and writing electronically the data to the tag (30) to update at least the tube service data.

Abstract: A fluid conduit (2) comprises a wall (4) defining a fluid flow path (6) and a confinement feature (24) within the wall (4) and being configured to confine energy within a cavity (26), wherein at least a portion of the fluid flow path (6) extends through the cavity (26). The confinement feature (24) may be configured to confine electromagnetic energy. The fluid conduit (2) may comprise an oscillator defined by the cavity (26) and a positive feedback arrangement (34). The fluid conduit (2) may be configured for sensing a property of a fluid present in or flowing through the fluid conduit (2) or for use in sensing a property of a fluid present in or flowing through the fluid conduit (2). More specifically, the present invention deals with a microwave cavity sensor wherein the cavity member (24) is embedded in the wall (4) of the fluid conduit (2), the wall (4) including a composite region (20).

Abstract: A spacer is inserted into a space between an existing pipe and a rehabilitating pipe to adjust a position of the rehabilitating pipe with respect to the existing pipe. The spacer has an elongated shape with both end portions in a longitudinal direction thereof cut off at an oblique angle and has a transverse width increasing gradually from an upper surface portion to a bottom surface portion. A space is formed in the bottom surface portion to correspond to a shape of the upper surface portion, thereby allowing a number of the spacers to be stacked on one another in a thickness direction thereof. The upper surface portion has a flat-plate shape with a flat rectangular surface region.

Abstract: A method of repairing leakage in pipelines comprising the steps of forming a first and second openings (14a, 14b) in the pipeline (10) upstream and downstream, respectively, of the leakage location, inserting through the first opening (14a) a first body (C1), filling the space arrear of the first body (C1) with a first viscose sealing material (M1), inserting through the first opening (14a) a second body (C2) arrear of the first viscose sealing material (M1) compressing the first sealing material by applying a pressure against the first and the second bodies (C1, C2) in opposite directions, causing the first and second bodies (C1, C2) and the compressed first sealing material (M1) to move in unison in the direction of the second opening (14b), and retrieving the first and second bodies (C1, C2). Preferably, the method is performed using three bodies (C1, C2, C3) and two sealing materials (M1, M2).

Abstract: A hydraulic accumulator having a closing arrangement. The accumulator has a housing, a removable end cap, a segmented locking ring, and a pilot ring. The housing has at least one opening, an interior space, and a ring recess adjacent the opening. The removable end cap is sized to close the opening when in a closed position. The segmented locking ring is removably positioned within the ring recess adjacent the end cap opposite the interior space to stop the end cap from moving in a first direction away from the interior space. The locking ring may be segmented. The pilot ring is removably connected to the end cap and positioned to hold the locking ring in the ring recess when connected to the end cap.

Abstract: A method of repairing a manhole is provided. A mastic material capable of curing and hardening as applied to a lower portion of the manhole, including the barrel, bench, and into at least one pipe line extending from the manhole. A resin saturated liner may also be included into a portion of the pipe extending from the manhole. A manhole liner saturated with a resinous material is then positioned in the manhole, and the manhole liner, pipe liner, and mastic material are configured to cure at approximately the same time to form a homogenous, repaired interior of the manhole, including a portion extending into the pipe. The pipe or pipes can then be repaired in a manner such as inverting a liner or bladder into the pipe. In the addition of an end seal at the juncture between the pipe and manhole is also contemplated for further sealing the juncture.

Abstract: A piston type hydro pneumatic accumulator with internal leak detection, having a gas chamber and a liquid chamber, the piston type hydro pneumatic accumulator comprising a cylindrical barrel, a floating piston, a gas end cover, a liquid end cover, a leakage detection construction having a first cylindrical channel reducing to a conical channel and further reducing to a second cylindrical channel, a floater device, the gas end cover and the liquid end cover hermetically disposed into the cylindrical barrel, a first pressure meter disposed so as to measure a pressure in the first cylindrical channel and a second pressure meter disposed so as to measure the pressure in the second cylindrical channel, the readings in the two pressure meters used for inferring a gas leakage or a liquid leakage.