Abstract: A hydraulic joint is disclosed. The hydraulic joint includes a tube, a hydraulic fitting, and a tip seal. The hydraulic fitting may be positioned around the tube. The hydraulic fitting may include a first open end for receiving the tube. The tip seal may be configured to define an opening that allows for the passage of leaks. The tip seal may be positioned on the hydraulic fitting adjacent the open end and forming a mechanical barrier between the fitting and the tube.

Abstract: A method for making a metal to composite tube joint including selecting an elongated interior fitting constructed with an exterior barrel, reduced in exterior diameter to form a distally facing annular shoulder and then projecting still further distally to form an interior sleeve having a radially outwardly facing bonding surface. Selecting an elongated metal outer sleeve formed proximally with a collar constructed for receipt over the barrel and increased in interior diameter and projecting distally to form an exterior sleeve having a radially inwardly facing bonding surface cooperating with the first bonding surface to form an annulus receiving an extremity of a composite tube and a bond bonding the extremity of the tube to the bonding surfaces.

Abstract: A retention sleeve comprising a predetermined material and shape which provides a predetermined tensile capability may be placed about a tube to be disposed in an umbilical without the use of a welded retention sleeve by selecting a high strength glue or epoxy and using that high strength glue or epoxy to affix the retention sleeve at a predetermined position along a length of a tube disposed in an umbilical.

Abstract: The invention described herein relates to method by which a leak-proof connection may be made to a refrigeration device using shape memory characteristics of crosslinking and overmolding to affect the leak-proof connection.

Abstract: An improved venturi-style eductor apparatus for dispensing chemicals into a motive fluid stream where an eductor body FIG. 3 is manufactured by molding a chemically inert polymer material FIG. 2 around and inside a metallic insert FIG. 1. Opposing ends of the metallic insert may be threaded, flanged, or machined for push-in connection to facilitate mating with a motive fluid source and a dispensing device. By manufacturing an eductor assembly using a single-piece metal insert over-molded with an inert polymer provides improved chemical resistance for aggressive applications and allows improvements in venturi geometry not achievable using traditional machined components. This apparatus reduces manufacturing cost over current state-of-the-art eductor assemblies by using a single molding step to create flow-path geometry in the eductor body while retaining mechanical strength with the metallic insert FIG. 1.

Abstract: The specification discloses a method and a coupler for joining polymeric tubular objects, such as pipe. The coupler includes (a) a rigid, electromagnetically inductive carrier, (b) a temperature-responsive expandable material on the carrier, and (c) a polymeric material on the expandable material. The method includes the steps of (a) inserting the coupler into the ends of two adjacent polymeric tubular objects, (b) creating an electromagnetic field about the coupler causing the carrier to heat, in turn causing the expandable material to expand and force the polymeric material against the tubular objects, and further in turn causing the polymeric material to melt, soften, or liquefy, and (c) terminating the electromagnetic field allowing the polymeric material to cure or solidify to bond to the tubular objects.

Abstract: The present invention relates to a pressure vessel (1) for a high pressure press comprising at least a first sub-cylinder (4) and a second sub-cylinder (6), which are axially connected to form a cylinder body (2) for enclosing a high pressure medium, and a sealing arrangement arranged at the inner wall of the cylinder body for sealing the joint (3) between the first and the second sub-cylinder (4, 6) against leakage of the pressure medium. The sealing arrangement is comprising a ring shaped sealing band (18), a first circumferential protruding flange (30), which is arranged on the inner wall of the first sub-cylinder and which axially extends from the joint (3) and away from the second sub-cylinder (6), and a second circumferential protruding flange (32), which is arranged on the inner wall of the second sub cylinder (6) and which axially extends from the joint (3) and away from the first sub-cylinder (4).

Abstract: A sleeve is provided for covering a pipe joint formed between two pipes that are coupled to one another to form a tube. The sleeve comprises a heat-shrinkable material that is configured to conform to the first and second pipes when heated to cover the pipe joint.

Abstract: A threaded tubing end assembly having a tubing with a transverse first end, a tubing through bore, and a longitudinal weld seam; a threaded adapter having an adapter through bore, and an adapter body having a threaded first end having a male thread and an opposed second end with an external transverse shoulder surrounding a reduced diameter elongated shank with an external longitudinal slot; a circumferential weld; and a longitudinal weld.

Abstract: A sealing ring and a method of preventing or stopping a joint leak between a pipe and a pipe fitting to minimize property damage as well as clean up costs occurring from property damage due to joint leaks by securing a sealing ring to the pipe and the pipe fitting to form a secondary joint that inhibits or prevent leakage between the primary joint between the pipe and the pipe fitting.

Abstract: A first element is connected to a first end of the connecting piece and a second element is connected to a second end of the connecting piece. At least one end of the connecting piece is provided with a thread, whereby the connecting piece is connectable for instance to a pipe or fitting with threaded connection. The connecting piece may be made of plastic, for example, the connecting piece is made substantially completely of thermoplast in such a way that the thermoplastic body is provided with a thread. The outer surface of the connecting piece is provided with a gripping member. The gripping member is formed and dimensioned such that it gives way earlier than the connecting member thread and/or basic structure.

Abstract: The invention described herein relates to method by which a leak-proof connection may be made to a refrigeration device using shape memory characteristics of crosslinking and overmolding to affect the leak-proof connection.

Abstract: A pipe attachment assembly for attaching a pipe to another structure so stresses are reduced within the assembly includes a sleeve positioned either within or outside the pipe which is composed of a material stronger than the pipe material, and an elastomeric bonding material which fills a gap between the pipe and the sleeve. The elastomeric bonding material transfers forces which are externally imposed on the pipe to the sleeve. This reduces bending, compression, tension, or torsion of the pipe in response to external forces, which in turn reduces the risk of a pipe failure at or near the termination or a breach where the pipe forms a joint with other pipes or containers. Various configurations may further improve the transfer of shearing stresses from the pipe to the sleeve, for example varying the width and/or the shear modulus of the elastomeric bonding material along the length of the pipe.

Abstract: Described herein is an article comprising a cold shrinkable hollow body having at least one open end, and at least a portion of the inner surface of the hollow body having one or more protrusions.

Abstract: An improved method and apparatus for mating an exhaust manifold to a mating component, such as a housing, is provided. The exhaust manifold is connected to the housing by a series of weld joints. The apparatus may include a tube member for connecting the exhaust manifold to the housing, and an insert member positioned partially within the housing. In an embodiment, the insert member includes a notch to allow a portion of the insert member to be positioned within the housing and an exterior portion of the insert member to be positioned exterior to the housing.

Abstract: A pipeline (20) that lies primarily in the sea and that is formed of multiple steel pipe sections connected in tandem at pipe joints, includes a protective coating around the pipe sections and around the pipe joints. Each pipe section is first covered, at an onshore facility, by an initial coating (30, 32) that extends along at least 80% of the pipe section length while leaving its ends uncovered, to leave gripping areas (40, 42) where the steel of the pipe is uncovered so the pipe can be clamped by tools such as those with steel jaws to position and slide it axially, or turn it, or prevent it from turning. After a pair of pipe sections are connected, a completion coating (50) is applied around the pipe joint to leave the pipeline with a coating around all of it.

Abstract: A method of joining a pair of tubular ends (1, 2) comprises: providing the tubular ends with intermeshing tapered edges (3,4); joining the tubular ends by inserting an adhesive between the tapered edges and pressing the tapered edges (3,4) together; arranging an axial load carrier collar (5) around the joined tubular ends; inserting an adhesive between the inner surface of the collar (5) and the outer surfaces of the joined tubular ends (3, 4); and inducing the adhesive to bond the inner surface of the collar (5) to the outer surfaces of the joined tubular ends. The axial load carrier collar (5) may be equipped with a series of flexible reinforcement strips (8, 9), which carry a majority of axial loads exerted on the tubular joint, such that only a minimal axial load is exerted on the bonded tapered edges (3, 4).

Abstract: An electrofusion coupling (93) for joining together two or more sections of pipe, said coupling comprising: (i) a substantially cylindrical coupling body having an outer surface and an inner surface, the inner surface being sized and shaped to form a clearance fit with the outer surface of the pipe regions to be joined; (ii) at least one electrical heating (94) element set on or in the inner surface of the coupling body; (iii) terminal means adapted to connect the electrical heating means to an electrical supply; characterized in that the terminal means does not project beyond the outer cylindrical surface of the coupling body once the welding process is complete.

Abstract: A fluid line coupling is disclosed for connection with hollow tubing. The coupling includes a body portion having a passageway for fluid communication with the tubing. A first wall extends from the body portion radially surrounding the passageway, and a second wall radially surrounds the first wall forming a pocket between the walls. The second wall includes an aperture for fluid communication with the pocket. An open ended aperture may be included in a radial array of apertures. The first wall may include a tapered surface for securing the tubing. A third wall may radially surround the second wall forming a well for an adhesive for filling the aperture and pocket. A second set of walls may extend in an axially opposite direction from the first set. The coupling may be included in a connection assembly with hollow tubing comprising a PVC material providing fluid communication with a medical instrument.

Abstract: A method of reinforcing a metal panel or pipe of an existing structure comprising the steps of attaching a reinforcing metal layer to said metal panel or pipe in spaced apart relation to thereby form at least one cavity between inner surfaces of said metal panel and said reinforcing metal layer, injecting an intermediate layer comprised of an uncured plastics material into said at least one cavity, and curing said plastics material so that it adheres to said inner surfaces of said metal panel or pipe and said reinforcing metal layer.

Abstract: An apparatus and method for connecting copper tubes are developed to facilitate welding operation in the refrigerating device. The new apparatus will reduce the poor welding rate so that it will effectively prevent clogging of the copper tubes and leaking the refrigerant. It also has merit to easily determine a suitable heating time while the copper tubes are welding. Thus, the rate of poor welding is reduced, as well as a method for connecting copper tubes by using the tube connecting apparatus.

Abstract: A method and apparatus for the application of a sleeve upon a tubular, such as a pipe string, used in downhole applications, for example in oil and gas exploration or recovery. A mould is located around the tubular into which a composite material is injected. The material is cured at ambient temperature. Optional heating may then be applied to enhance the properties of the sleeve. The heating temperatures are well below those at which the structural integrity of the metal tubular would be compromised as regards its fitness for downhole use. Embodiments of wear protectors are illustrated for sleeves with and without wear pads.

Abstract: A pipe system includes first and second pipes having first and second ends welded together forming a girth-weld and a corrosion coating covering the girth-weld. In addition, a flexible sheet is provided to cover the girth-weld. The flexible sheet comprises a first structured layer that mechanically couples to the corrosion coating, where the corrosion coating permeates a substantial portion of the first structured layer. The flexible sheet also includes a second layer comprising a polymer layer adhered to the first layer, the second layer protecting the corrosion coating from mechanical or environmental damage. Alternatively, the protective cover comprises a polymer material and includes a port formed therethrough adapted to receive a delivery mechanism that delivers a corrosion coating to the girth-weld.

Abstract: A device for connecting components (1, 2, 3) made of fusible plastic, especially pipes (12, 60) of a fuel pipeline or a fuel line to a fuel tank (8) of a vehicle. The device includes a heating element (4) having ends (44, 46) which are used to supply electrical energy. The device is easy to use, simple to mount, and produces a functionally reliable welded joint between the components (1, 2, 3). To achieve this, one component (3) includes a retaining body (16) for a retaining tool (50), and the two ends (44, 46) of the heating element (4) extend onto the retaining body (16) where they can engage contact elements (56, 57) on the retaining tool (50).

Abstract: A filament-wound composite coupling for use in assembling a restrained joint between large diameter pipes with complementary retaining grooves, such as 16 inch or larger outer diameter polyvinyl chloride pipes. The coupling has first and second ends and ported retaining grooves associated with each end. Preferably, the coupling also includes O-ring seals and a pipe stop to index the pipes to be coupled. The composite coupling has a cylindrical composite body with a plurality of concentrically arranged layers of wound filaments in a thermoset plastic matrix. Each of the layers is characterized by a winding angle opposing the winding angle of the adjoining layers.

Abstract: Exhaust system assemblies employ wire bushings for thermal compensation to minimize noise due to “stick-slip” while the system cools. In a preferred embodiment, the wire bushings are formed of at least one strand of wire coiled about male end portions of pipe sections used in the system, each of which male end portions are inserted into a female end portion and held therein by an interference fit. The strand of wire is spot welded at spaced locations to the male end portions to provide bearing surfaces between the spot welds that move slightly as the exhaust system heats and cools to relieve thermal stress in small, substantially inaudible increments.

Abstract: An apparatus for creating a permanent, leak-proof plastic tubing joint including a length of plastic tubing, a fitting component and a device capable of generating a local electromagnetic field. The fitting component is manufactured of a polymer containing nonpolymeric particles capable of absorbing a specific frequency of electromagnetic energy. An end of the length of plastic tubing is slidably inserted into the fitting component. When the tubing has been fully inserted, a device is activated to generate a local electromagnetic field surrounding the fitting component. The nonpolymeric particles absorb the electromagnetic energy and increase in temperature. This temperature increase causes the fitting component to begin melting at the interface with the plastic tubing while at the same time causing the end of plastic tubing to become pliable. The electromagnetic field is then removed and both the fitting component and the end of plastic tubing cool to ambient temperature.

Abstract: The present invention provides a method for producing a repair material for use in repairing an interface area between two intersecting conduits. According to one aspect of the invention, a mold is provided having similar dimensions to an interface area. The interface area is defined by a first conduit and a flange connecting the first conduit to a second conduit. A repair material is provided having a material structure, the material structure defined by an arrangement of fibers such that the material structure has similar dimensions to the interface area. The arrangement of fibers further allowing the repair material to be flexible and seamless. A resin is provided, the resin having a resin viscosity. An additive is provided, the additive is adapted to increase the resin viscosity. The additive is mixed with the resin to form a resin-additive mixture whereby the resin viscosity is increased after a time delay.

Abstract: This invention relates to a method of repairing a moisture barrier separating a paper machine dryer drum from the dryer journal. Such processes of this type, generally, involve filling the cavity between the dryer drum steam intake pipe and the dryer journal with a flowable moisture barrier material. The flowable moisture barrier seals leaks in the dryer journal moisture barrier.

Abstract: A pipe joint connecting a pipe using an anaerobic adhesive, which possesses a double pipe structure formed with an inner pipe fitting into the inner circumference side of the end of the pipe, and an outer pipe fitting into the outer circumference side of the end of the pipe, integrated with a gap between them, and a tapered surface formed with at least one or the other of the inner piper or outer pipe approaching the other; and a pleated O-ring provided on the end of the outer pipe to set the pipe in place by tightening an O-ring locking material supported by the outer pipe.

Abstract: A clamp for repairing a damaged pipe member. Shell members are matingly engaged around the damaged pipe member. Segmented inserts are received in a complementary annular channel formed in an inside face of the shell members to form a ring assembly supporting annular seals between the ring assembly and the damaged pipe member. A shell-sealing annular channel is formed between the ring assembly and the shell members to receive a liquid sealant to form an annular seal between the ring assembly and the shell members. A longitudinal channel is formed in longitudinal faces of the shell member to form longitudinal seals in the shell assembly when a ring assembly is disposed at either end of the shell members. The ring assemblies support seals against the damaged pipe member, including a pipe-sealing annular channel formed between each ring and the damaged pipe member between inner and outer annular seals for receiving a liquid sealant.

Abstract: A pressurized leaking flange joint is sealed with a ¼ circle load support structure, a jacking bolt extending therethrough and applying a radial load to a sealing plug between the flange gap. The sealing plug is a graphite packing ring placed into the flange gap on either side of a gasket centering ring, and a carbon steel compression ring (two ⅛ circles placed end-to-end) placed on top of the packing ring on either side of the gasket centering ring. The load support structure is installed such that the jacking bolt is centered over the flange gap. The jacking bolt is torqued and subsequently applies a radial load to the compression ring, which radial load is transferred to the load support structure and then to two flange bolts against which the load support structure bares. The radial load on the compression rings compresses the packing material into the pathway of the leak, thereby sealing the same.