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WO/2008/029252A1 |
A method of forming a homogenous composite pipe of unspecified length from strips (5) of fibre reinforced thermoplastic material is disclosed, the method comprising the steps of: arranging a mandrel (1) stationary in a process direction ...
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WO/2008/025200A1 |
A prestressed concrete pipe unit with a steel socket and a steel spigot includes a concrete core; a prestressed steel wire is wound around the outer wall of the concrete core; a protective layer is provided outside of the prestressed ste...
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WO/2008/027649A1 |
A reinforced pipe section (100) comprises a metal pipe (110), a layer of dry- fibers (120) disposed around the metal pipe (110), and an external liner (130) covering the layer of dry fibers (120). A method of manufacturing a reinforced p...
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WO/2008/024934A2 |
Embodiments in accordance with the present invention relate to inexpensive, manufacturable, robust, and easily installed interconnections for solar energy conversion systems. Particular embodiments in accordance with the present inventio...
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WO/2008/023543A1 |
An air conditioner for a vehicle, having two or more evaporators (3, 4). The air conditioner has interior heat exchangers (5, 6) corresponding to the evaporators (3, 4), the first evaporator (3) is placed at a front part (8A) of the occu...
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WO/2008/020812A1 |
A system for improved powder coating of the internal walls of a duct fitting, comprising an oven; duct attachment means; a drive mechanism; heating means; and an automatic powder coating sprayer. The duct fitting is enclosed within the o...
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WO/2008/016353A1 |
A metallic tube (400), including a first cylindrical member (403), which is formed from a flat metal strip, and a second cylindrical member (402), which is formed from a flat metal strip, wherein the first cylindrical member (403) is emb...
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WO/2008/015361A1 |
The invention concerns a conduit incorporated into the tubing of an aircraft characterized in that it is made from a composite material comprising a fiber-reinforced geopolymer resin matrix.
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WO/2007/140780A1 |
The invention relates to a metal sheet (15) ventilation/smoke exhaust duct section (10) for incorporation into a metal sheet ventilation/smoke exhaust duct, said metal sheets (15) being covered on the outside by a heat insulating materia...
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WO/2007/141573A1 |
The present invention provides a tubular member (10) and method of forming the same in which the tubular member (10) comprises one or more strips of self overlapping helically wound material (12) having corrugations with radially adjacen...
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WO/2007/137764A1 |
The present invention relates to a structure comprising (i) a layer or profile (A) composed of a first material, and (ii) a polyolefin layer or profile (B) adjacent to layer or profile (A) which is composed of a composition comprising a ...
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WO/2007/137545A1 |
Push-in pipe parts 1 such as pipes and fittings for a ring main, in particular a hot-water circulation line, by means of which a feed and a return are formed, have at least one web 2 forming two passages 3, 4 within the cross section of ...
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WO/2007/139228A1 |
Disclosed is an internally polyolefin coated steel pipe having excellent durability, which is characterized in that the inner surface of a steel pipe, which is internally and externally plated with a zinc plating material containing 0.01...
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WO/2007/126892A2 |
A tubing assembly including elongated first and second tubes for carrying a fluid flow. Each tube is a composite tube having an inner layer (103), a middle layer (102) surrounding the inner layer, and an outer layer (101) surrounding the...
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WO/2007/127274A1 |
Polymeric pipes with barrier layers are made by attaching to a pipe a multilayer structure which comprises a barrier layer and at least one irregularly surfaced sheet. The resulting pipes, which have reduced permeation to various substan...
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WO/2007/121622A1 |
A Cu/Al composite pipe and a manufactured method thereof are disclosed. The inner layer of the pipe is Cu, and the outer pipe is Al. The middle of the two layers forms a combinative layer due to the mutual diffusion of Cu and Al. The raw...
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WO/2007/119734A1 |
A steel pipe as fuel injection pipe of 500 N/mm2 or higher tensile strength composed of, by mass, 0.12 to 0.27% C, 0.05 to 0.40% Si, 0.8 to 2.0% Mn and the balance Fe and impurities, the contents of Ca, P and S in the impurities being 0....
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WO/2007/115800A2 |
The invention relates to a fluid duct (10), especially for use in motor vehicles to feed liquid in order to wipe windows or headlights of said motor vehicle. Said fluid duct (10) comprises a flexible pipe (12) with at least one corrugate...
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WO/2007/111051A1 |
A synthetic resin pipe that is reduced in weight with its compression strength required for use as an underground pipe maintained and has excellent seismic resistance. The synthetic resin pipe has an inner pipe (2), a reinforcing rib (3)...
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WO/2007/108865A1 |
A low temperature carburized stainless steel workpiece is colorized by electropolishing followed by alternating current electrolysis in an electrolysis bath maintained at a neutral or slightly basic pH and containing ions of a metal havi...
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WO/2007/101591A1 |
The invention relates to a through-type, reduction-type, angle-type, T-type or cross-type tube connector made from metal, in particular copper sheet metal, rust-resistant sheet metal and/or acid- and drinking-water-resistant sheet metal,...
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WO/2007/100244A1 |
The present invention relates to a system for reusing water, comprising: - a mains system which comprises at least one conduit for transporting water and monitoring means adapted to measure changes in an electrical parameter of the condu...
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WO/2007/101047A2 |
A polymer composition comprising a density equal to or greater than about 0.947 g/cc, a high load melt index from about 1 g/10min to about 30 g/10min, and a tensile natural draw ratio less than about 14167ρ-12958, where ρ is the densit...
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WO/2007/096548A2 |
The invention relates to an element comprising coaxial pipes, including an inner pipe, an outer pipe and a closure for sealing the annular space between the two pipes at each of the ends thereof, such as a connector. According to the inv...
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WO/2007/096547A2 |
The invention relates to a method for producing an element (1) comprising coaxial pipes, including an inner pipe (1a), an outer pipe (1b) and a forged connector (2a, 2b) at each of the ends thereof, each connector consisting of at least ...
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WO/2007/093256A1 |
The invention relates to a composite conveying pipe for abrasive fluids and thick substances, in particular for concrete. The composite conveying pipe comprises an inner pipe (10) made of wear-resistant material and a reinforcing sheath ...
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WO/2007/092004A1 |
A continuous communications conduit for use in a well is disclosed. A first (101) and second (102) conduit section are threadably engaged and a weldment is formed (200). A heat shield conduit (220) can be disposed within a bore (111, 112...
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WO/2007/090209A1 |
Composite pipe, in particular for the transport of fluids under high pressure, in particular for laying in the earth, comprising at least one inner pipe and at least one concrete outer layer surrounding the pipe, wherein the outer layer ...
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WO/2007/092226A2 |
A hose for use in a fluid transfer system includes a first layer that is made of a plastic material and a second layer having fiber strands that are wound about the first layer. Optionally, the hose may also have additional layers to pro...
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WO/2007/088252A1 |
An elongated product is formed such that first a core is formed, the outer surface of the core being made of plastic. Thereafter, a tubular metal layer is extruded such that the layer is seamless. When the metal layer is extruded, a clea...
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WO/2007/088253A1 |
An elongated product is formed such that first a core is formed, the outer surface of the core being made of plastic. Thereafter, a tubular metal layer is extruded such that the layer is seamless. When the metal layer is extruded, a clea...
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WO/2007/087287A2 |
An arrestor for arresting an axial ductile propagating fracture in a pipeline transporting a high-energy fluid is made from a material such that the arrestor deforms sufficiently when encountering a propagating fracture that the propagat...
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WO/2007/079761A1 |
The invention specifies a flexible fluid line comprising a plurality of tubes (1) which are arranged parallel next to one another, which have a common connection element (11, 12) at at least one end (9, 10) and which are embedded in a pl...
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WO/2007/072078A2 |
A ceramic tubular body (10) is provided with a ceramic core (12) 0ver which is wrapped a strengthening outer casing (16) formed from a helically wound material which may be self overlapping and/or wound under tension and has a greater st...
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WO/2007/069339A1 |
This invention provides a method for evaluating the local buckling capability of a steel pipe in which whether or not the steel pipe of a yield ledge model can be applied to applications where an excellent local buckling capability is re...
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WO/2007/067259A1 |
Multimodal polyethylenes possessing a density from 0.940 to 0.965 g/cm3, and an I21 from 4 to 20 dg/min, and including a low molecular weight ethylene copolymer having a weight average molecular weight from 5,000 amu to 50,000 amu; and a...
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WO/2007/057695A1 |
A pipe in pipe spacer (10) for use in coaxial spacing a first pipe within a second pipe, for example, an oil pipe within a carrier pipe. The spacer (10) has an inner face (2) which contacts and engages with the outer surface of the first...
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WO/2007/052773A1 |
A high-manganese austenitic stainless steel which comprises, in terms of mass%, 0.01-0.10% C, 0.01-0.40% N, 0.1-1% Si, 10-20% Cr, 6-20% Mn, 2-5% Cu, 1-6% Ni, and Fe and unavoidable impurities as the remainder and in which the component p...
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WO/2007/048910A1 |
The invention concerns the use of polyamide 11 for internal coating of a gas pipeline for reducing pressure drops.
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WO/2007/048368A1 |
The invention relates to an elbow pipe (1) for a pipe tract used in the fluidic transport of solids and to a method for producing said pipe. The elbow pipe (1) comprises a double-layer pipe body (2) consisting of an internal elbow pipe (...
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WO/2007/047089A1 |
A high pressure D-tube (14) with enhanced through tube access for use in a well system. The well system includes the tube having an interior and a generally D-shaped exterior surface (32). An inner support structure (36) spans the interi...
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WO/2007/039824A2 |
The invention relates to the field of pre-insulated conduits for the supply of low-pressure conditioned air and, more precisely, it relates to a method for manufacturing conduits with circular or elliptic section. The method foresees the...
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WO/2007/041723A1 |
Marine umbilicals are provided comprising polyamide compositions having good hydrolysis resistance and that may optionally contain plasticizer.
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WO/2007/041722A1 |
Pipes are provided wherein comprising polyamide compositions having good hydrolysis resistance and that may optionally contain plasticizer. Such pipes are suited for applications transporting hydrocarbons. The pipes of the present invent...
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WO/2007/031156A1 |
The present invention relates to a pipe or a supplementary pipe article comprising a polyethylene composition comprising a base resin which comprises (A) a first ethylene homopolymer fraction, and (B) a second ethylene homo- or copolymer...
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WO/2007/024795A1 |
A double wall pipe assembly includes an inner primary pipe (4) and an outer secondary pipe (5), as well as a novel fitting assembly (3) for terminating the double wall pipe assembly. The primary pipe is a flexible annularly corrugated pi...
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WO/2007/022908A2 |
A polyethylene molding composition having a multimodal molecular mass distribution and comprising from 45 to 55 % by weight of a low molecular weight ethylene homopolymer A, from 20 to 40 % by weight of a high molecular weight copolymer ...
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WO2005120805A9 |
The present invention provides a multilayer synthetic resin pipe having spiral ribs, and an extrusion molding method and apparatus for manufacturing the same. The multilayer synthetic resin pipe (70) of the present invention includes a p...
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WO/2007/019921A1 |
The invention relates to a hollow body, in particular a tube or hose, comprising an inner layer (4) and an outer layer (1), each made from a thermoplastic material and two barrier layers (2, 3), provided between the inner layer (4) and t...
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WO/2007/017106A1 |
The invention relates to a coolant conduit for a motor vehicle air-conditioning system comprising a corrugated metal hose (1) provided with radially external crests (2) and radially internal troughs (3). Said metal hose is optimised with...
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