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WO/1995/004646A1 |
The invention relates to a process for making a tubular cladding hose (20), especially for use in duct rehabilitation work, in which at least one fibre belt is shaped into a curable, resin-impregnated hose. The inside of the cladding hos...
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WO/1995/004239A1 |
Pipe or pipe fitting provided with an outer coating comprising a first zinc layer; on this layer, a second porous zinc/aluminium layer containing from 5 to 55 % aluminium; and on this second layer, a third porous, pore filling layer comp...
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WO/1995/003895A1 |
A method of providing a protective skin around a core (20) of an umbilical structure comprising the application of one or more lines of fluent covering material to the surface of the core to form a substantially even and regular coating ...
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WO/1995/002018A1 |
The invention concerns coating powders containing epoxy resins, phenolic cross-linking agents, catalysts, fillers and, optionally, auxiliaries and additives. The coating powders are characterized in that crystalline silicilic acids modif...
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WO/1994/028342A1 |
A multi-piece, pipe joint seal (18, 19) has a slidable interface (A) between seal pieces. The slidable iterface (A) allows for slippage between pieces during pipe joint assembly and disassembly, minimizing rotational and other stresses o...
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WO/1994/026426A1 |
A pipe of the type used in subterranean or submerged pipelines for recovery of oil, gas, slurries or the like pipeable materials has an anti-corrosion coating of epoxy resin having a film thickness of from about 350 mum to about 500 mum,...
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WO/1994/025790A1 |
A tubular lining hose (1) for use in softlining pipe rehabilitation which includes the use of a layer of reinforcing fibers (3) to reinforce the lining hose (1). A layer of reinforcing fibers (3), such as fiberglass, is encapsulated betw...
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WO/1994/023845A1 |
A process is described to realize a film made of an adequate resinous material on the internal surface of metallic pipes, particularly those made of aluminium, to protect them and further allow for particular uses for which they could no...
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WO/1994/022598A1 |
The invention concerns a three-coat coating system for metal pipes, the coating system being made up of a powder primer, a thermoplastic adhesive and an outer polyolefin sheath. The powder primer contains epoxidized novolak resins, pheno...
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WO/1994/022661A1 |
A pipe (10) of polyethylene is reinforced by two layers (12, 14) of polyethylene tape wound around the pipe in opposite directions under tension. The pipe contains carbon black and the layers are unpigmented and free from fillers and are...
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WO/1994/019640A1 |
The piping element is provided with an outer coating comprising a first porous layer consisting of zinc/aluminium alloy containing from 5 to 60 % of aluminium and, on said first layer, a second layer called pore occluding layer. Applicat...
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WO/1994/019641A1 |
In the laying of straight stretches of heat insulated district heating pipes it is known that the usual problems with respect to thermally conditioned expansions and contractions can be entirely avoided, if the pipes are of annealed copp...
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WO/1994/018418A1 |
A plastic liner (200) for protecting a concrete manhole interior surface from corrosion wherein the liner includes provisions for creating a strong interlock between the liner and the interior surfaces. A side of the liner which includes...
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WO/1994/017324A1 |
A heat-recoverable article (2) with improved impact strength and increased resistance to swelling. The article is composed of a first backing layer (6), a second inner layer (8), and an optional adhesive layer (10), e.g. a hot-melt adhes...
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WO/1994/013992A1 |
A pipe and method of manufacture of the pipe are described. The pipe comprises a core of helically wound steel strip embedded in a plastics material matrix and lined with inner and outer linings of filament wound fibre reinforced plastic...
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WO/1994/012828A1 |
The subject invention provides a flangeless pipe joint for polymer-lined process piping, in particular loose-lined, interference fit, or swaged polymer-lined piping systems. The subject invention further provides a process for manufactur...
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WO/1994/011664A1 |
A corrosion-resistant connection (10) for use with tubular members having externally threaded ends. The connection includes a stress-bearing sleeve member (12) having an interior surface (22) and an exterior surface; and a fiber-filled p...
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WO/1994/010408A2 |
A concrete fluid structure deteriorated to the condition of removal of substance of the concrete by sulfuric acids and like corrosive material in contact therewith is restored by a substratum of epoxy foam, polyurethane foam, or a combin...
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WO/1994/010497A1 |
A fire safety coating, particularly intended for application to hydrocarbon-conducting steel pipes (1) in the splash zone underneath oil plants at sea, consists of at least three layers, where the outer layer (5) is a mechanical protecti...
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WO/1994/009306A1 |
Protective sheet (1) comprising a high density polyethylene outer film (2), a woven polyethylene or woven polypropylene intermediate film (4) and a high density polyethylene inner film (6), the outer and inner films being glued to the in...
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WO/1994/008728A1 |
The invention relates to a tool (8) for coating the inside of tubes with a protective material and designed to be arranged at one end of a supply line (6) having a discharge orifice for coating material as well as to be connected to a ro...
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WO/1994/007077A1 |
A connector assembly (10) for use with tubular conduits (30) is disclosed which is a male portion (31) that is put into a female portion (12). The male portion (31) makes use of the end of the conduit (30) itself, and the female portion ...
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WO/1994/007076A1 |
The present invention tubular assembly comprises a tubular member (14), an annular bushing (17) therearound and a ferrule (21) therewithin. The bushing (17) is fit around a predetermined portion of the tubular member (15) and the ferrule...
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WO/1994/005499A1 |
Spiral bands (90) having a plurality of convolutions of a high tensile strength composite material are formed by feeding a plurality of continuous high tensile strength fibers (10) through an uncured resin (16) to form a web (48), deposi...
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WO/1994/004349A1 |
A flexible protective and waterproofing membrane (10) includes a flexible polymeric sheet (14) having an open-textured surface on each of its opposite faces defining interconnected internal voids open to the atmosphere and capable of bei...
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WO/1993/024782A1 |
A method of protecting a welded joint (7) between two weight-coated metal pipelines (1, 2) comprises positioning a wraparound sheet steel mould (8) around the joint, retaining that mould around the joint using a wraparound heat shrinkabl...
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WO/1993/021392A1 |
A wrapping (2) for a conductor, riser or pile (1) on an offshore rig is a composite sheet with an outer skin (3) of impermeable resilient flexible material and an inner layer (4) of felt impregnated with a thixotropic gel. The edges of t...
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WO/1993/020381A1 |
A relining pipe for insertion inside sewer lines to repair them. The relining pipe is made up of a number of substantially rigid pipe elements (1), which are interconnected by pipe couplings, such pipe coupling comprising a female sleeve...
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WO/1993/013352A1 |
The invention provides that where a main underground pipeline or passageway (10) is lined by means of a lining tube which extends over the connection of a lateral pipe (12) with the main pipeline or passageway (10), the said lateral conn...
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WO/1993/012370A2 |
Improvements in thermal insulation and anti-corrosion protection for pipelines are described. A composite coating essentially comprises an inner elastomeric layer (64) typically of polyurethane, a thermally insulating layer (66) of close...
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WO/1993/012369A1 |
A composite small-diameter tubing (18) resistant to interaction with materials conveyed therethrough such as liquids containing alcohols or corrosive agents which includes a cylindrical outer metal conduit (12) having a hollow central sh...
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WO/1993/009372A1 |
The present invention relates to a heat shrinkable sleeve for connecting a pipe and cable, which is manufactured by crosslinking heat shrinkable sheet materials (3) with organoperoxides, silanes or the like, elongating the cross-linked s...
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WO/1993/008424A1 |
A pipe joint (10) between two pipe sections (16, 18) in which the pipe sections are provided with a liner (36) spaced inwardly by grout material (42) from the inner wall of the pipe sections. The liner (36) is prevented from moving longi...
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WO/1993/008022A1 |
A metallic material which is excellent in the resistance to chemical solution capable of composing a chemical solution treating device free of erosion on metallic piping, metallic devices, and metallic parts thereof as well as capable of...
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WO/1993/001934A1 |
A concrete structure having a layer of mixture of concrete and polysulfide denatured epoxy resin as an intermediate layer between a concrete layer and a polysulfide denatured epoxy resin hardened layer. This concrete structure is excelle...
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WO/1993/002311A2 |
An impressed current corrosion protection system comprises a distributed anode in the form of a conductive core covered with a conductive polymeric coating and surrounded by packed coke contained within a polymeric jacket. This outer jac...
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WO/1993/000214A1 |
A method of covering a joint (4) between pipelines (2) comprises installing a heat recoverable polymer sheet (8) coated on its inner surface with a hot-melt adhesive (10) comprising a mixture of 25-40 parts by weight of a polyethylene al...
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WO/1992/019898A1 |
An apparatus for preventing scale formation in systems where a fluid, such as water or the like, is conducted through a conduit wherein: the apparatus forms a part of the conduit (16), the apparatus comprises a longitudinal conduit chamb...
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WO/1992/019903A1 |
A fire safety coating, particularly intended to be used on hydrocarbon-conducting steel piping (1) in the splash zone beneath oil plants at sea, consist of at least four layers, where the outer layer (5) is a mechanical protection layer ...
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WO/1992/018151A1 |
An ablating pig (20) comprised of a mass of gelatin for use in treating tubulars (15). The pig will ablate as it passes through the tubular thereby depositing a treatment layer (21) onto the wall of the tubular. The pig can be molded out...
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WO/1992/017729A1 |
A fluid, viscous coating layer composed of substances that can be solidified is applied at least on the inner side of a metallic tube. During a later processing step, this coating layer is transformed into a permanent, solid layer.
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WO/1992/015818A1 |
Method and device for fitting an inner tube in an existing pipeline, using air venting means, and also pipeline with inner tube of thermoplastics fitted in a stretched state therein. Lining of a pipeline (1) by placing therein an inner t...
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WO/1992/014606A1 |
A laminate for lining a passage, which is entirely or partially surrounded by walls, above or under the ground, which laminate comprises at least one layer of a reinforcement (4) of continuous fibre, a curable resin (5) and a plastic she...
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WO/1992/014090A1 |
The invention concerns a device for processing the surfaces of pipes, for instance for winding them with anti-corrosion tape, the device having a tool carrier, fitted with rollers, which can be placed against the pipe surface. The angle ...
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WO/1992/012844A1 |
A method for lining a tubular member with an elastomeric liner having an outside diameter which is initially greater than the inside diameter of the tubular member. A series of downsizing rollers (37, 57, 59, 61, 63) reduce the outside d...
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WO/1992/008921A1 |
An underground pipeline or passageway (10) is lined by having a preliner tube (16) applied thereto by inflation, and the tube whilst inflated has an applicator (28) pulled therethrough from which a fluent curable or hardenable compositio...
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WO/1992/005944A1 |
In a tube eversion apparatus a first chamber (52) in which the eversion pressure is developed is controllably sealed by a sphincter-type valve, said valve being in turn actuated by pressure developed in a preferably separately controllab...
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WO/1992/006141A1 |
A method of protecting materials against corrosion including the steps of priming with a primer containing 3 to 20 % by weight of phenol-modified resin and 0.1 to 5 % by weight of silane, coating with a modified bitumen enamel modified w...
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WO/1992/003234A1 |
A method of coating metallic pipe is disclosed. The method comprises heating the pipe to a temperature of at least 200 °C and applying an epoxy resin composition having a thickness of at least 300 microns to the outer surface of the hea...
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WO/1992/001191A1 |
A new process is disclosed for sealing and renovating the inside of systems of laid ducts with a small inner diameter. Leaks are stopped by a sealing material introduced into the duct and the inside of the duct is renovated by abrasive b...
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