Abstract: An assembly for introducing a pipe liner into a branch line includes a launcher defining a passageway through which a resin impregnated pipe liner and bladder tube assembly passes. An inflatable member mounted to the launcher assembly is actuatable between an inflatable condition and a deflated condition. The pipe liner and bladder tube are secured in place by expanding the inflatable member outward against the inner surface of the branch line. Air pressure drives the bladder tube and pipe liner into the branch line. The bladder tube remains in place until the pipe liner hardens.

Abstract: The invention concerns an energy guide chain for guiding hoses, cables or lines comprising chain links (2) each consisting of two link plates (3) and at least one crossbar (8) connecting the link plates, wherein link plates (3) of adjacent chain links (2) have pivot regions comprising mutually corresponding pivot pins (4) and openings (5) for receiving the pivot pins, by means of which the chain links (2) are pivotably interconnected, and wherein the link plates (3) of adjacent chain links (2) have mutually overlapping overlap regions (21, 22), forming lines (6, 7) of link plates, and wherein at least one link plate (3) is provided with a region (15, 20) of weakened material, which permits a variation in length of the link plate line (7) beyond the play which occurs in the pivot region (4, 5) in all directions of the link plate (3). In order to permit improved straight-ahead movement of the chain the material-weakened region (15, 20) is in the form of an elastically deformable region of the link plate (3).

Abstract: A lubricant coating (240) for expandable tubulars (215). The interior surfaces of the expandable tubulars are coated with the lubricant coating (240). The expandable tubulars (215) are then placed within a preexisting structure (205). The expandable tubulars are then radially expanded into contact with the preexisting structure.

Abstract: An ultralow expansion brake rubber hose comprising an inner rubber tube, a first reinforcing layer, a second reinforcing layer and an outer rubber layer, wherein a thermosetting resin which penetrates the reinforcing fibers constituting the first reinforcing layer and which is cured at vulcanizing temperatures is cured by vulcanization to turn the first reinforcing layer into a solid cured layer. By turning the first reinforcing layer into the solid cured layer, the mutual slippage between the reinforcing fibers of the first reinforcing layer can be prevented, and a brake rubber hose having low expansion and excellent durability can be obtained.

Abstract: A flexible tubular pipe having, from the inside outwards, at least, a carcass of an interlocked metal strip, an internal sealing sheath, a cylindrical pressure vault of a winding of an interlocked profiled metal wire wound in a helix with a short pitch, at least one ply of tensile armor wires wound with a long pitch, a wire wound with a short pitch over the ply of armor wires, the wires having a deformable sheath that partially penetrates the gaps between the windings in the at least one ply of armor wires, and an external protective sealing sheath.

Abstract: A pipe assembly includes pipe having a protecting saddle connected thereto. A support member and a support saddle are provided to sustain the pipe, with the protecting saddle resting on the support saddle. One of the protecting saddle and the support saddle has a slippery coating to allow the pipe to move relative to the support saddle.

Abstract: A system and method for providing secondary containment for pipeline transmission systems that complies with environmental regulations for double wall applications. The outer surface of the pipeline is adapted with an epoxy bonded multi-ply fabric that forms a secondary containment structure external to the pipe with first and second spaced layers forming an interstitial space therebetween. An external coating of cured epoxy resin provides resistance to impact, abrasion, and chemically induced corrosion and deterioration. Probes may be installed at various locations along the pipeline for continuously sampling the environment within the interstitial space thereby providing leak detection. Secondary containment is constructed on an existing section of, steel, iron, fiberglass, composite, metal alloys, or concrete pipe.

Abstract: A high-pressure composite pipe of the present invention comprises an inner layer pipe made of a synthetic resin, and a reinforcing layer formed by spirally winding a stretched polyolefin resin sheet on an external circumferential surface of the inner layer pipe. The synthetic resin for the inner layer pipe or a heat-sealable resin is filled into a gap defined by the stretched polyolefin resin sheet, thereby avoiding penetration of water from a cut surface of the pipe.

Abstract: A pipe of layers of thermoplastic polyolefins of the same type, however with different properties, which are connected inseparably with one another, an outer first layer and a second layer, adjoining the first layer on the inside, consisting of a material, which has not been cross-linked, the second layer approximately having the FNCT the value or the NPT value of a one-layer standard pressure pipe and the first layer having an FNCT or NPT value, which is higher by a factor of at least 3 than that of the second value. Moreover, a third layer is provided, which adjoins the second layer on the inside, also consists of material that is not cross-linked and has a PNCT, which is higher by a factor of at least 3 than that of the second layer and an NPT layer, which is higher by a factor of at least 2 than that of the second layer.

Abstract: A method and apparatus for conditioning loose-fill insulation including an elongated tubular cylinder having a plurality of internal blades positioned in a helical configuration. Large nodules of glass fibrous material pass through the conditioning cylinder and are combed into smaller, more uniform sizes, thus allowing a more uniform additive application further downstream in the manufacturing process. The addition of a tangential airflow to the conditioning cylinder facilitates the combing process by adding a tangential force to move the nodules down the cylinder.

Abstract: A resinous hose formed by the process for producing a resinous hose, wherein the hose comprises cylindrical portions extending rectilinearly and a bent bellows portion wherein the bellows portion includes a bellows wall having continuous crests and valleys, and a non-bellows wall located on the side diametrically opposite to the bellows wall. The outside diameter of the valleys of the bellows wall is smaller than an outside diameter of the cylindrical portions, and an outside diameter of the non-bellows wall is larger than the outside diameter of the cylindrical portions.

Abstract: A self-locking, high-pressure stopper is disclosed. Also disclosed is a method of using the stopper. The stopper allows a branch pipe to be plugged from above ground using an elongated insertion tool. The self-locking stopper of the present invention includes a body having O-ring seals that is inserted into the branch pipe that is to be plugged. The self-locking stopper has outwardly biased locking tabs that are provided to engage a shoulder or step in the branching pipe in order to prevent the stopper from being pulled out, or pushed out by fluid pressure, once it is in place. The stopper system also includes a flanged insertion pipe used for inserting the stopper into the branch pipe. The stopper also has an adapter for engagement by an insertion tool that allows a user to insert the stopper from above ground.

Abstract: A flexible tube for a vacuum system includes a tube body and a cover. The tube body is made of hard material. The tube body has projected parts and depressed parts. The cover is provided over an outer surface of the tube body. The cover is made of elastic material. The cover may be in contact with the projected parts of the tube body and extend over the depressed parts of the tube body so that a vacant space is formed between the tube body and the cover.

Abstract: A vibration absorbing rubber hose having a laminar structure including an inner rubber layer, a reinforcing layer, and an outer rubber layer, which layers are laminated integrally with one another in the order of description in a radially outward direction of the rubber hose, wherein the inner rubber layer is formed of a butyl rubber material and/or a halogenated butyl rubber material while the outer rubber layer is formed of an EPM material consisting of ethylene-propylene copolymer.

Abstract: It is of the type comprising at least two reinforcing armour plies (3-6) wound in opposite senses about a longitudinal axis (A—A) and at least one pressure sheath (7), which can collapse in a given direction under the action of external pressure greater than the internal pressure in the said collapsible pipe, the collapse being able to cause a transverse elongation of the said pressure sheath, and it is characterized in that at least one stiffener (8, 9) is provided on at least one surface (7a) of the said pressure sheath, which is made of a thermoplastic, so as, during collapse, to limit the said elongation to a value of less than the elongation threshold of the said thermoplastic. Application especially to the transporting of hydrocarbons in offshore operations.

Abstract: A process for lining an existing pipeline or conduit with a flexible resin impregnated cured in place liner by pulling in the liner and inflating an eversion bladder with air and curing the liner with flow-through steam without loss of pressure is provided. The bladder is stored in a pressure bladder canister coupled to a pressurized downtube and eversion elbow. The bladder is everted by introducing pressurized air into the canister As the bladder reaches the distal manhole, it enters a receiving canister where it is punctured while maintaining air pressure within the bladder a pinch valve between the downtube and elbow isolates the inverted bladder so that steam can be introduced into the bladder to cure the resin and exhaust through the receiving canister. The bladder is then removed and lateral service reinstated.

Abstract: Sound attenuating ducting has an inner, helical wire supporting an inner and outer layer formed by strips of a foamed thermoplastic rubber material. Axial and helical reinforcing yarns extend along the ducting between the layers. The two strips are applied from extruders, the extrusion rate of the inner strip being set to be less than that of the outer strip so that the inner strip is stretched to produce a more porous structure than in the outer strip. In this way, the inner layer is efficient in absorbing orifice noise within the ducting and the outer layer contains radiated noise.

Abstract: A cryogenic fluid system having a flexible conduit for conducting cryogenic materials and a method for fabricating such a flexible conduit is herein disclosed. The flexible conduit of the cryogenic fluid system generally includes a first tube and a second tube disposed about the first tube. The first and second tubes can be made from the same or different materials (including composites) as long as the material which makes up at least one of the first and second tubes is silicone rubber-impregnated glass cloth. The flexible conduit also generally includes a fluorocarbon polymer liner disposed against a first inner wall of the first tube, so that the first tube is positioned between the second tube and the fluorocarbon polymer liner. Some variations of the flexible conduit have an annulus between the first and second tubes which optionally is occupied, at least in part, by insulation.

Abstract: A clamp attachable to a vehicle for remotely stopping gas leaks in a gas line is provided. The clamp includes a first boom having a first end, a second end and a pipe engaging portion adjacent the second end. The first boom is provided with a mounting portion adjacent the first end operable to couple the clamp to a mounting structure for manipulating the clamp. The clamp also includes a second boom having a first end, a second end and a pipe engaging portion adjacent the second end. The first and second booms are coupled such that the pipe engaging portions of the first and second booms are positioned to cooperate about a leak portion of a pipe. The clamp has an actuator to selectively engage the first and second pipe engaging portions about the leak portion of the pipe.

Abstract: An in-line type fluid hammer prevention device capable of maintaining pressure energy conversion efficiency of elastic cushion for a long time by improving fluid sealing tightness against an elastic cushion by elastic cylindrical diaphragm, wherein an inlet cylindrical connecting body (1) and an outlet connecting body (3) are connected at an intermediate position of fluid channel (R) of a piping system in series, and both ends of a sleeve (5) is positioned between center through-holes (1C, 3C), and a cylindrical diaphragm (7) is placed around the outer periphery side of small holes (5E) provided on the wall of the sleeve (5), and inward lip portions (7A, 7B) at the both ends of the cylindrical diaphragm (7) are pressed and supported by the protrusive flanges (5C, 5D) and the recessed seats (1D, 3D), and an elastic cushion (8) is placed outside the cylindrical diaphragm (7) around the outer periphery side of the small holes (5E) of the sleeve (5).