Abstract: A static hydro-dynamic mixer undulating interior conduit provides a static mixing apparatus which utilizes a spiral, coiled or curved conduit to cause dynamic mixing of its flowing contents while they are pumped through it. The application includes a method of use in separating oil sands. The mixing is caused by the resistance to flow through the undulated conduit and the resistance increases with pitch and conduit diameter.

Abstract: A continuous, seamless, copper tube having a mass in excess of 500 kilograms formed by an extrusion process and at an extrusion temperature of approximately 750 degrees Celsius.

Abstract: Manufacturing variable and/or singular property products, such as a tubing, in a tip-and-die assembly, where intermittent acting material injectors are used. Two or more injectors take turns making material shots to maintain a continuous material stream. A singular flow controller regulates the flow for all material streams coming from the injectors.

Abstract: An improved centrifugally-cast tube is provided, along with a related method and apparatus of making the tube. The tube includes a plurality of grooves and bosses that are mechanically machined into an interior surface of the tube, such as by a broaching process. The profile of grooves and bosses may be defined by a plurality of intersecting concave and convex radii. The tube is resistant to creep, carburization and metal dusting. The tube also has an enhanced heat transfer rate, and a desirable surface roughness. A method of making the tube is also provided. The method essentially consists of mechanically deforming the interior surface of the tube by passing a series of cutting inserts on support rings having incrementally-differing dimensions over the interior surface.

Abstract: The present invention provides an improved tubular structure which uses the properties of different materials, such as stiffness, strength, and density are exploited in a manner which combines the most attractive characteristics of existing metal and composite tubes into a metal/composite tube which contains performance characteristics (stiffness, strength or weight) not possible with pure metal or composite materials.

Abstract: A metallic material of the invention which comprises, in mass %, C: not more than 0.2%, Si: 0.01-4%, Mn: 0.05-2%, P: not more than 0.04%, S: not more than 0.015%, Cr: 10-35%, Ni: 30-78%, Al: not less than 0.005% but less than 4.5%, N: 0.005-0.2%, and one or both of Cu: 0.015-3% and Co: 0.015-3%, with the balance substantially being Fe, and of which the value of 40Si+Ni+5Al+40N+10 (Cu+Co), wherein the symbols of elements represent the contents of the respective elements, is not less than 50 and has excellent corrosion resistance in an environment in which metal dusting is ready to occur and, therefore, can be utilized as or in heating furnace pipes, piping systems, heat exchanger pipes and so forth to be used in a petroleum refinery or in petrochemical plants, and can markedly improve the equipment durability and safety.

Abstract: A small diameter metal tube having at least two inner diameters is provided. A method for producing this metal tube is also provided. In this method, a plate member having a development shape of the metal tube is blanked from a metal thin plate so that the plate member is left partly tied to the metal thin plate, the plate member is press formed into a tubular body having the at least two inner diameters, and the plate member partly tied to the metal thin plate is cut apart to produce the metal tube having at least two inner diameters.

Abstract: A method and apparatus for reinforcing duct work is provided. In one embodiment, a reinforcement comprises a conduit having a first end and a second end. A pair of plugs is insertable into the first and second ends of the conduit. Each of the plugs has a groove extending along the circumference of the plug, and the plugs are crimped inside the conduit along the grooves. Each of the plugs may have a threaded end extending out of the plug and being retractable into said plug. Alternatively, each of the plugs may have an internally threaded opening extending at least partially through the plug. In this embodiment, the conduit can be secured to duct work by aligning the conduit with holes in the duct work, and inserting a bolt through the holes and into the internally threaded openings of the plugs.

Abstract: An integrated fluid conduction system or hose assembly comprising a hose, a clamp, and a coupling device wherein the hose includes an external surface and a projection, with an orifice, extending from the external surface. The clamp includes an opening to receive the projection. The coupling device includes a compression section and a leg for coupling, fixing and positioning the projection orifices so that the compression section engages the clamp external surface so as to retain and stabilize the clamp to the hose. The invention is further directed to a coupling device as generally described above as well as to a method for coupling a clamp to a hose with the coupling device including the steps of positioning the clamp on the hose by disposing the projections into the clamp opening and attaching the coupling device to the hose, including placing the legs of the coupling device into the projection orifices, to couple the clamp to the hose.

Abstract: A weighted structure (13) for attachment along the foot of curtaining to ensure even hanging has a series of weights (4) attached at intervals along a cord (3). The assembly (2) of the cord (3) and weights (4) is enclosed within a tube (1). The tube (1) is applied to the assembly (2) by extrusion, the assembly (2) being passed through a die (8) together with molten plastics.

Abstract: A tubular part having a tubular main body and an integral tubular pullout projecting laterally from the side of the main body and in fluid-tight communication therewith is superplastically formed by inserting the tube in a cavity of a die base and heating the die to a temperature at which the material of which the tube is made exhibits superplastic properties. The distal end of a pull-rod is extended through an opening in the die base and through a hole in the side wall aligned with the opening. A pull-die is selected having a cross section larger than the hole and about equal to the desired internal cross section of the tubular protrusion. The pull die is attached to the distal end of the rod and (before or after attachment) is heated to about the superplastic temperature of the tubing material.

Abstract: The flexible tube is filled with a substance which expands on contact with water. The tube is wholly or partly of a material which loses consistency on contact with water, enabling the substance to expand. The filled tube is insertable into an energy transportation or telecommunications cable.

Abstract: An insert with connecting outlet for flexible hoses, particularly for hydraulic and industrial applications, comprising a body which is suitable to be inserted, with a first end, in a flexible hose to be connected and, with a second end, in a port of an apparatus, by locking through a rotatable male element; the end of the body of the insert that is suitable to be inserted in the apparatus port being provided with a retention element which is suitable to lock in its seat the rotatable male element when the insert is inserted, with its second end, in the rotatable male element, the rotatable male element being externally threaded for engagement with the port of the apparatus.

Abstract: Fluid transport and containment systems are protected from rupture related to an expanded volume within the systems. A fluid transport system, such as a water supply pipe, has a relief channel along its length configured for expanding outwardly when fluids contained in the pipe freeze and expand. A unitary pipe configuration including a pipe wall and an integral core structure that can be sealed at each end provides a means for expansion sufficient to resist freeze-induced rupture. Such pipe configurations can be used with conventional pipes and pipe fittings and with adapters adapted to fit both the improved pipes and conventional pipes and pipe fittings.

Abstract: A pipe mechanism for an exhaust gas recirculation system includes a joint pipe connected to an exhaust pipe, an inner tube through which flows exhaust gas, and an outer tube. The inner tube has an upstream end and a downstream end, with the downstream end being located in the intake pipe. The outer tube has an upstream end connected with the joint pipe and a downstream end attached on the outer surface of the inner tube. The outer tube is located around the inner tube with a predetermined clearance between the inner and outer tubes.

Abstract: In a pipe forming process using bending rolls, load applied to an upper roll is reduced to suppress the deflection of the upper roll, thereby suppressing creation of large end gap at the longitudinal center of the pipe, thus enabling production of high-strength, thick-walled elongated pipes. This is achieved either by (1) setting the roll spacing L between lower rolls to a value greater than the sum of the diameter Dwu of the upper roll 34 and the diameter Dwl of each of the lower rolls 32, and setting the amount S of tightening of the upper roll 34 with respect to the lower rolls 32 to a value greater than the radius Rwl of each of the plural rolls; or by (2) effecting pipe forming work on the sheet material such that the spacing L of the lower rolls 32 satisfies the following condition: (Dp+Dwl)>L≧0.

Abstract: An air duct, in particular for a motor vehicle heating, ventilating and/or air conditioning system, which is acoustically optimized by virtue of the fact that at least one cross-sectional discontinuity is constructed by making use of a phenomena which occur as acoustic scattering processes at the cross-sectional discontinuity. The cross-sectional discontinuity should extend substantially perpendicular to the flow direction in the air duct.

Abstract: There are provided a porous pipe excellent in an absorbing and draining function, a producing apparatus capable of producing a porous pipe at high speed and low cost and a method of producing a porous pipe. The porous pipe is a pipe mainly constituted by spirally winding a tape and is constituted such that there is arranged a hole forming portion 13 for forming a recess or a notch or a hole at a tape 2 molded by a tape molding portion 11 between the tape molding portion 11 and a pipe forming portion 12 and the tape 2 is molded, a hole 6 is formed and a pipe 1 is formed continuously. The hole 6 is formed into a predetermined shape by elongating the hole 6 from a side of the pipe forming portion 12. According to the pipe 1 formed thereby, a peripheral wall portion of the hole 6 is gradually thin-walled toward an outer peripheral face of the hole.

Abstract: A continuous, seamless, copper tube having a mass in excess of 500 kilograms formed by an extrusion process and at an extrusion temperature of approximately 750 degrees Celsius.

Abstract: A steel pipe, includes an outer corrosive-preventive protective sheath, which has a surface layer of plastic material, and a crack stopper zone extending over a section of the pipe. The crack stopper zone includes a bandage which is wrapped around the pipe section and made of high-strength fiber material imbedded in a compacted matrix of thermoplastic and thermosetting plastic. The bandage is comprised of a plurality of wound layers joined to one another via the matrix by welding or gluing.

Abstract: An insulation piece is described for a pipeline that conveys electrically conductive liquids from a point that is at a ground potential to a point connected to a high voltage. The liquid is conveyed discontinuously by portion-by-portion transport by the carriage flow of the liquid being interrupted. The insulation piece is periodically free of liquid, corresponding to the interruptions in the carriage flow. The insulation piece is a hollow body, and its unobstructed width is equal to or greater than that of the pipeline. Connecting pieces for connecting to the pipeline are provided on the end faces of the insulation piece, which are closed in places by terminating elements, and which connecting pieces are of the same diameter as the adjacent pipeline. The connecting pieces pass through the terminating elements, rest against them to form a seal, and each have a toroidal-form attachment on the outside at their inner end.

Abstract: A flexible protective sleeve for use in protecting an elongated member comprises a generally tubular wall for at least substantially surrounding the member. The sleeve also comprises permanent adhesive adhered to an interior surface of said wall. The adhesive is effective to stick the elongated member to the interior surface.

Abstract: A body that slides over an end, opposite end, and outer diameter of a conduit is presented. A passage through the body has a groove in which a seal is located. A portion of the conduit is expanded to create an interference fit with the passage, groove, and ends of the body. As a result, an enlarged outer diameter of the conduit axially interlocks with the groove and compresses the seal therein to create a fluid-tight seal. In one embodiment of the present invention, a second enlarged outer diameter of the conduit is displaced outward over the opposite of the body to help lock the body to the conduit. Additionally, an outside diameter of the body can accommodate grooves for retaining seals. These seals can create a sealed engagement to a housing or another fitting, to form a complete conduit connection. The body can take the form of a housing, a male fitting, or a female fitting.

Abstract: A projectile receiver for receiving and stopping a high velocity projectile used in testing duct pipe which serves as a housing for fiber optic cables, as well as a method of using the projectile receiver, are disclosed. The receiver has a perforated housing that contains a rubber end stop therein adjacent a removable cap. The opposite end of the housing is stepped down to a diameter equal to that of a duct pipe being tested. The projectile receiver may be quickly and easily attached to and detached from a duct pipe to be tested using a clamping device, so that a single projectile receiver can be used to test a plurality of duct pipes in succession.

Abstract: A device to assist in guiding a hose onto a spool while protecting a user's hand from friction and debris or contamination carried by the hose. The device is a slotted cylinder having a through-bore and which may be installed onto the hose at any point along its length. Preferred embodiments have flared open ends and a spiral slot which may be expanded to accommodate hoses of different diameter. The device may be “cocked” with respect to the hose to provide friction and apply an axially directed force to the hose.

Abstract: Disclosed is a metal pipe excellent in dimensional accuracy, which is suitably used for a development sleeve, a fixing roller, or a photosensitive drum for electrophotographic apparatuses or electrostatic recording apparatuses such as copying machines or printers, or a base body thereof. The metal pipe is produced by cutting a long-sized metal pipe body into a specific length, to obtain a raw pipe, and adjusting the surface state and the dimensional accuracy of the raw pipe by cutting and polishing the outer peripheral surface of the raw pipe, wherein the raw pipe has an inner stress of 20 N/mm2 or less.

Abstract: A reinforcement structure of pipe comprises a hard resin to be inserted into a pipe portion to be reinforced and protruded members protruded from the hard resin and having a slightly larger diameter than an inside diameter of the pipe portion, the protruded members being formed of a foaming resin material and the protruded members pressed into the pipe portion being foamed and expanded to seal between an internal surface of said pipe and an external surface of at least one of said core member.

Abstract: A system for identifying and positioning pipelines that accurately and unequivocally marks a section of pipeline and tubular goods located anywhere for subsequent identification. The pipeline positioning system comprises a permanent, passive, non-obtrusive, and systematic placement of marker coupons upon pipe diameters for uniquely identifying a pipeline or specific location therein. Identification and location codes incorporated into the markers may be readily detected by inspection methods known in the art. Codes may be applied to new tubes or pipelines during manufacturing, during pipeline laying operations, or during maintenance being rendered by the pipeline owner or operator.

Abstract: In motor vehicles with an onboard refueling vapor recovery (ORVR) system, a filling pipe with a reduced cross-section is provided. The pipe portion with reduced cross-sectional area has at least one longitudinally directed bead which gradually merges into the adjoining cylindrical regions to reduce flow resistance and prevent turbulent flow. The bead can be produced without impairing the strength of the filling pipe. When two or more beads are provided, they are preferably distributed equiangularly.

Abstract: A flattened single or dual inlet boom tube exhaust pipe for use on race cars, such as stock cars which race on oval tracks, which mounts to the standard exhaust system pipes and to the lower frame or chassis of the car, and which routes exhaust gasses to one or both sides of the car while providing improved ground clearance between the exhaust pipe and the surface of the race track. The construction of the boom tube exhaust pipes comprise single or dual slightly flattened circular inlets which lead exhaust gasses into a flattened profile body constructed of formed sheet metal half shells, with the inlets at or above the lower plane of the body. One or more formed sheet metal structural ribs extend through the body and into the inlets and one or more spacer ribs support the half shells within the body. The boom tube exhaust pipes can be made with internal baffles or spiral acoustic traps so as to also be an acoustic muffler.

Abstract: A steel pipe, includes an outer corrosive-preventive protective sheath, which has a surface layer of plastic material, and a crack stopper zone extending over a section of the pipe. The crack stopper zone includes a bandage which is wrapped around the pipe section and made of high-strength fiber material imbedded in a compacted matrix of thermoplastic and thermosetting plastic. The bandage is comprised of a plurality of wound layers joined to one another via the matrix by welding or gluing.

Abstract: An injection hose intended for sealing expansion joint in concrete structures. The hose is in the form a continuous hollow extrusion (12), made of elastic, flexible material, with a continuous longitudinal bore (10) and at least one longitudinal groove (16). The groove (16) is connected to the bore (10) by means of apertures (22) in the wall of the extrusion and is fitted with a sealing strip (24), made of compressible, elastic material, which extends over the apertures (22). Production of the hose is made particularly simple and inexpensive by virtue of the fact that the width of the groove openings (26) is less than the diameter of the sealing strip (24) and that the means of holding the sealing strip (24) in place are formed by making undercuts in the side (30) of the groove (16).

Abstract: An exhaust processor is provided having an exhaust processor body, first, and second end caps. The exhaust processor body includes an outer shell and a substrate positioned to lie within the outer shell. The outer shell includes an outer surface facing away from the substrate, an inner surface facing toward the substrate, spaced apart first and second ends. The inner surface of the outer shell defines a first end cap region at the first end, a second end cap region at the second end, and an inner surface side. The first end cap is positioned to lie in the first end cap region, and the second end cap is positioned to lie in the second end cap region. Each of the first and second end caps include a crimpable flange that is sizable to include a size substantially equal to the inner surface size of the inner surface of the outer shell.

Abstract: A conduit, in particular for sanitary and/or heating installations, comprising a pipe for conveying a fluid or for accommodating supply lines such as electric power supply lines or fluid-conducting pipes, is characterized in that the pipe is connected to a mounting material strip for fastening the pipe to a surface, and object or the like, the mounting material strip projecting laterally from the pipe and extending along the pipe.

Abstract: A method and device for drawing off humidity, such as condensation fluid, from an insulation layer around apparatuses, such as pipe lines and the like. The method is characterized in that a hollow body, such as a sleeve is arranged in a passage in the insulation material, and where a number of openings in the wall portion of the hollow body or the sleeve communicates with the surroundings outside the insulation layer, whereby condensation fluid can be drawn off from the insulation layer to the surroundings via the hollow body in the form of the sleeve.

Abstract: The copper alloy tube disclosed here contains 0.05 to 1.5 wt. % of Mn and deoxidized copper containing oxygen concentration at 100 ppm or less. At least one element selected from a group of elements comprising P, B, Li, Pb and Sb can be added at the amount of 0.20 wt. % or less in total. At least one element selected from another group of elements comprising Cr, Ti, Zr, Al and Si also can be added at the amount of 0.50 wt. % or less in total. Further, at least one element selected from other group of elements comprising Mg, Fe, Co, Ag, In and As can be added at the amount of 1.0 wt. % or less in total. Furthermore, at least one element selected from a group of elements comprising Zn and Ni can be added at the amount 5.0 wt. % or less in total. Thereby, an corrosion resistant copper alloy tube having better corrosion resistant property against the ant-nest type corrosion which is specific problem for refrigerant tubes and tubes for the heat exchanger and also better brazing property can be provided.

Abstract: A flexible tube for an endoscope is provided with a tubular sheath. An outer circumferential surface of the sheath is provided with an indicator that indicates at least one of an orientation of the sheath about an axis thereof and axial length information. The indicator includes at least one striation extending in the axial direction of the sheath. The striation is formed to be perceptible by touch.

Abstract: A poly (vinyl chloride) with longitudinal ribs formed on its inner wall by extrusion is slit helically to provide a strip that can be wound around a plurality of strands of fishing leader or other material, or used as a fish hook protector or as a spacer in a fishing lure. The ribs provide the tubing with an iridescent appearance for high visibility and also enhance the gripping ability of the tubing. Alternatively, and especially in the case of a thin walled tube, the ribs can be separated from one another manually to form the skirt of a fishing lure.

Abstract: A flexible hose 10 having a built-in handle 20. The hose 10 has at least three layers including a first elastomeric layer 12, a second elastomeric layer 16, and at least one reinforcing layer 14. At least one handle 20 is affixed to at least one of the respective reinforcing layers 14. The handle 20 at least partially extends radially outwardly of the external surface 18 of the hose 10. In a preferred embodiment, the handle 20 is made from flexible material.

Abstract: A drill pipe having a length of conduit having a first diameter, a first and a second end portion, where each end portion has a second diameter greater than the first diameter. An enlarged portion is located between and spaced from the first and second end portions, where the enlarged portion comprises a central section which has a third diameter greater than the first diameter. The central section has a substantially smooth external surface, and two end sections, one end section at either end of the central section, which vary in diameter between the first and the third diameter. One of the end sections has a spiral formation thereon.

Abstract: A pipe hole covering and sealing trim for covering and sealing a hole in a wall through which a pipe extends. The pipe hole covering and sealing trim includes an annular piece has inner and outer perimeters, and front and back faces. The inner perimeter of the piece defining a center hole through the piece designed for extending a pipe therethrough. The piece has an inwardly extending resiliently deformable annular gasket along the inner perimeter of the piece designed for forming a seal between the pipe and the piece.

Abstract: A portable windguard for use on a pipe to shield a weld being applied from wind comprising a collar, a Velcro.TM. belt for attaching and securing the collar to the pipe and a shield extending generally perpendicularly from the collar. The shield can be collapsible, hence readily transportable from site to site.

Abstract: A thermoforming process for forming a plastic pipe using a high-frequency field to introduce the required heat. The pipes thermoformed according to the invention are used, for example, in the motor vehicle sector.

Abstract: A curved pipe segment, preferably a U-bend made from a silicon carbide-containing material having a body portion with an inner and outer surface, an inner bend circumference of curvature and an outer bend circumference, and an inlet end and an outlet end, said pipe segment having an integrally molded support flange extending from the outer surface near the center of the body portion, along the outer bend circumference.

Abstract: A flexible hose 1 of the present invention is formed by blocking and interrupting a spiral groove 5 inside a hill 2 of a corrugated hose end portion 1a or 1b (inner surface helical concave portion) to form a closed section 4, or by blocking and interrupting a spiral groove 5 formed outside a valley 3 of a corrugated end portion 1a or 1b of a hose (outer surface helical concave portion) to form a blocked section 4. The flexible hose of the present invention can provide an improved air tightness when connected to a joint, requiring no troublesome steps or treatments.

Abstract: A method of achieving improved delectability of pipe, duct or conduit buried below the surface of the earth involves providing the pipe, duct or conduit with a plurality of very small high energy permanent magnetic elements spaced apart along the length thereof. Preferably the elements will be positioned within a groove, or grooves, formed in the external surface of the pipe, duct or conduit, and they will be covered by a protective tape to avoid inadvertent mechanical removal and to avoid contamination once the pipe, duct or conduit has been buried. For plastic pipe there should be a projection extending inwardly of the interior of the pipe adjacent the groove so as to ensure that the wall thickness of the pipe is maintained. A pipe carrying a single longitudinally extending groove should be positioned in the ground with the groove uppermost for maximum flow of gaseous material within the pipe.

Abstract: A body for absorbing impact energy is designed as a flexible pipe and is characterized in that the walls of the pipe are made of several layers and comprise at least one metal layer and at least one paper or plastic layer. The cross-section of the absorbing body is designed in such a way that at least one section of its wall is substantially straight and extends substantially parallel to the direction from which an impact is expected.

Abstract: An outer pipe casing (20) and a concrete tube (26) cast inside, form a pre-stressed concrete pipe in its elementary form. Prior to casting, a layer of non-cohesive material (28) is sprayed on the inside of the pipe casing and an annular ring (32) is welded inside adjacent to each end. A resilient seal ring (46) is captivated into the inwardly facing legs (38) of the second channel (36) of each annular ring and a temporary seal (52) separates each annular ring from the material (28). After the concrete of the tube cures, a pressurized solidifying compound (54) is inserted under pressure to a pathway (42) formed into each annular ring and it is also extruded into a region (30) coated by the non-cohesive material. Pressurization of the compound is sufficient to cause the pipe casing to bulge outwardly and compression of the concrete in the tube is achieved. When the compound hardens, the compressive force remains and pre-loads the pipe.

Abstract: Underground cavities containing liquid contaminants are remediated by drilling directionally through the cavity and then pulling back pipe with a slotted section extending through the cavity. The pipe is supplied on reels in lengths much longer than in the prior art, thus avoiding the joining by butt welding of successive short lengths of pipe as in the prior art. Slots are preferably cut parallel to the axis of the pipe or at a angle in respect to the axis instead of being cut radially as in the prior art, so that a much greater portion of the pipe circumference remains joined together, thereby substantially increasing the axial strength of the pipe.

Abstract: Expandable tubing, as utilized in downhole applications in the oil and gas exploration and extraction industries, includes tubing having a wall with a multiplicity of overlapping longitudinally extending slots therein. The slots have end portions and at least some of the slots are wider at at least one end portion.