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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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WO/1992/001189A1 |
An existing pipeline (1) is relined by introducing an inner tube (2) of thermoplastic material, particularly of polyethylene terephthalate, and enlarging thereafter its diameter until the inner tube (2) tightly engages the inner wall of ...
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WO/1991/017362A1 |
A method of joining two sections of metallic pipe (1), each of which has a thermoplastic polymer lining (3), to form corrosion resistant joints is disclosed. The method comprises inserting a sleeve (10) into each section of two pipes (1)...
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WO/1991/011653A1 |
An apparatus for coating the outer surface of an elongated body (10), such as a rod or tube, with a layer of concrete (30) comprises a frame structure (21). Pipe or tube sections (10) may be supplied to a tilting device (27) in a horizon...
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WO/1991/008417A1 |
The invention enables damaged joints where secondary sewer pipes join main sewers to be rapidly, inexpensively and reliably repaired without the need to expose the damaged part by excavation. An applicator (1), connected up to a pipe-rep...
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WO/1991/005133A1 |
An anti-fouling covering (10) is applied to a tubular (11) of a tubular off-shore structure to prevent fouling of the tubular by marine growths and comprises metal sheeting (13) which is deformed to provide spaced ridges or troughs (14) ...
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WO/1990/012657A1 |
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 heat...
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WO/1990/012235A1 |
A method of covering two or more joined pipes (20, 22) which are to be pulled through soil is described. The two coated pipes (20, 22) are bared of coating (26) in order to join them. The bared region (28) is covered with a first heat sh...
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WO/1990/009542A1 |
A method for providing protection against corrosion of a pipe joint (1) formed by the mating of complementary ends (4, 5) of two pipes comprising the steps of: (a) applying controlled heating to a pipe body which is to be joined to an ad...
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WO/1990/005873A1 |
A remote-controlled and/or programmable pipemaking device (3) is introduced into the cavity (2) and moved forward. The pipemaking device (3) produces the cylindrical lining (5) in the elongated cavity (2) from a strip-like construction e...
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WO/1990/003850A1 |
An improved process for field coating pipe wherein a particulate olefin polymer resin coating composition is employed to provide field coatings having improved combinations of properties with a labor and time saving process. The olefin p...
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WO/1990/002647A1 |
This invention relates to a tube used for lining of a conduit. The tube main body portion consists of an intermediate layer and outer and inner layer interposing the intermediate layers. The intermediate layer is formed by a felt impregn...
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WO/1990/002851A2 |
There is disclosed a constructional member comprising a bendable plate (10) of plastics material reinforced by an assembly (12) of steel wires on one face thereof, some of the wire in said assembly being spaced outwardly from the plate. ...
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WO/1990/001649A1 |
A connection to a pressure vessel of composite material wound about a body part (1) a so-called liner of thermoplast with an end part (3) provided with an axial internal bore (5). The connection is characterized particularly in that the ...
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WO/1989/012199A1 |
The insulation material comprises a flat block (10) in the shape of a parallelogram, having a plurality of bars (13) of rigid P.V.C. foam disposed in parallel across the block and spaced apart, the bars (13) being flexibly interconnected...
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WO/1989/011618A1 |
The field joint (10) comprises two bare metal end portions of insulated pipes (11, 12) welded together. The field joint insulation (20/40) covers the bare metal in a time of 10 to 15 minutes. It comprises a preformed insulated infil whic...
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WO/1989/008214A1 |
A well tube liner system includes rigid, self supporting plastic liners (12) inserted within well tube sections (10) and including end flanges (18) adjacent opposed ends of the tube sections for sealing against each other and against a c...
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WO/1989/000481A1 |
The novel method for the repair of the inside of installed conduits comprises the following method steps: drying of the inside of the line by flow-through of pre-dried compressed air, removal of interior coatings by flow-through of a mix...
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WO/1988/009832A1 |
According to this process, lime is added to the water being conveyed in a quantity capable of conferring anti-incrustation properties on it. Before being introduced into the saturator (S), the water taken from the pipe is mixed in a deca...
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WO/1988/009898A1 |
In improved connections for tubular equipment made of composite materials, each connection (1, 2) has, for each end of the tube, a fitted, glued inner sleeve (4), a hot shrink-fitted, glued outer sleeve (5), and means for connecting the ...
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WO/1988/009460A1 |
The covering, comprises anti-fouling metal sheeting (13, 13', 20) which is adapted to enclose the surface (11) of a sub sea structure, and which has corrugations (14). The sheeting is in the form of a strip (13) which is transversely cor...
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WO/1988/005885A1 |
In connection with installations comprising articles housing or conducting corroding material, or in connection with substantially pipe- or hose-shaped articles which are to be protected against fire, for example a propulsion motor in a ...
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WO/1988/003476A1 |
Lining material of pipe-lines such as a gas conduit, a water pipe, a sewer pipe, a petroleum pipeline, and the like. A layer of bulky finished yarns (5) is connected to one of the inner and outer surfaces of a cylindrical woven fabric (4...
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WO/1988/003598A1 |
A method for relining non-circular man-entry tunnels or sewers (10) where perforated first layer strips (13) of rigid PVC are fixed to the walls with fasteners in side-by-side relationship. Grout (19) is sprayed over the first layer stri...
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WO/1988/003586A1 |
Fa�ade en aluminium int�gr�e dans laquelle les barres creuses et les supports creux (51) recevant le fluide de transport de chaleur pr�sentent, lorsqu'ils sont mont�s, une couche �tanche r�sistante � la corrosion ou une c...
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WO/1988/000314A1 |
A conduit liner system comprising a length of flexurally resilient liner material (10) having first and second ends (11, 12) a first radius of curvature greater than the radius of curvature R3 of the inner surface (17) of a conduit (16) ...
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WO/1987/007906A1 |
Two variants of LAV viruses capable of causing acquired immunosuppressive syndrome (AIDS), which virus variants have been designated as LAVELI and LAVMAL. Their DNAs and antigens can be used for the diagnostic of AIDs or pre-AIDS.
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WO/1987/006673A1 |
A joint for oil well pipes, which has a high galling resistance, and which is provided with a porous film of projection coating, which film is obtained by projecting, onto the outer surface of at least a metal seal portion of a joint for...
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WO/1987/006676A1 |
The method consists in metallization of a flexible sleeve, introducing it into the pipeline, displacing and pressing it against the internal surface of the pipeline by creating an excess pressure inside the hollow between the sleeve and ...
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WO/1987/005088A1 |
A method of forming a protective layer on the internal surface of a pipeline consists in glueing to the internal surface of the pipeline (1) a flexible sleeve (2) one end (6) of which is turned inside out and fixed to the internal surfac...
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WO/1987/001978A1 |
Multi-layer hollow body with an inner layer, an outer layer and if applicable an intermediate layer. According to the invention, the outer and the inner layers consist of different jointly shaped materials. In addition, a process for man...
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WO/1987/001058A1 |
A method for clearing deposits from the inner surface of a pipeline and applying a protective coating to it consists in clearing deposits from the surface, treating it with a corrosion inhibitor solution forming a coating on the surface ...
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WO/1986/004406A1 |
A lining for lining inlet ports and outlet ports in a frame plate or a pressure plate for plate heat exchangers and comprising a cylindrical portion and two flanges which are connected to the cylindrical portion and which during the use ...
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WO/1986/002423A1 |
The present pipeline consists of coaxially mounted and rigidly interconnected envelopes the inner one being made of non-hermetical and hermetical layers (3, 4) and the totality of the envelopes being saturated with a binding agent (5) an...
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WO/1986/002427A1 |
A device for coating the inner surface of a pipeline with the cement sand comprises a coating mechanism (1), systems (2 and 3) for feeding, correspondingly, the cement sand and a working agent, hoses (4 and 5), a pull rope (6) and a hois...
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WO/1986/002293A1 |
A device is used for repairing of working pipelines and for protection of those under construction and comprises a clearing instrument (1) driven through the pipeline (5) by the flow of a liquid with an inhibitor dissolved in it. The cle...
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WO/1986/002430A1 |
A method consists in inserting into a pipeline (2) a flexible sleeve (4), moving and pressing it to the inner surface of the pipeline (2) by means of creation of excessive pressure inside a hollow between the pipeline (2) and the sleeve ...
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WO/1986/002315A1 |
A device comprises a system for insertion of a polymer sleeve (4) into a pipeline (2), a system (1) for feeding a working agent into the pipeline (2) and a means for fixation of the sleeve (4) to the pipeline (2). The system for insertio...
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WO/1986/002428A1 |
A method for coating the inner surface of the pipeline with the cement sand mortar provides for forming on that surface a layer (4) of the mortar which is pressed and kept by a flexible sleeve (5). Before pressing to the layer (4) of the...
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WO/1986/002429A1 |
The method consists in inserting into the pipeline a flexible sleeve, moving and pressing it to the inner surface of the pipeline by means of creation of an excessive pressure inside a hollow between the sleeve and the pipeline. Simultan...
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WO/1986/000384A1 |
A method of protecting a connection between two metal parts, which may be of similar or dissimilar metals, which connection is formed between flanged surfaces (2) on the two parts and which is clamped together by at least one backing fla...
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WO/1985/003104A1 |
Device relating to the protection before use of threads and thrust-forming seal bearings (66) which are involved in the sealing thereof and threads (55) of male or female junction areas of metal tubes. It comprises a plastic ring (56) wh...
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WO/1985/002002A1 |
The descaling of surface of processing equipment, vessels and piping on which scale, such as that which occurs in the extraction of alumina from bauxites has formed. The surface is cleaned to ensure that it is entirely free of contaminan...
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WO/1985/001895A1 |
By means of a part (11) which is displaced into the pipe (10) laid and formed by welding straight or bent conduits, a coating material introduced inside the pipe (10) is applied to the inner surface and is hardened thereon. The coating m...
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WO/1983/002748A1 |
The invention provides that a tubular lining (12), suitable comprising an inner felt layer soaked in curable synthetic resin, and an outer impermeable layer, so everted into a pipeline or passageway by means of a gaseous fluid medium whi...
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WO/1981/000006A1 |
Welding apparatus for plastic lining (5) in concrete tubing (4) comprises a centering carriage (6) movable inside the tubing along its length and fixable in position at a location adjacent a butt joint (51) having a seam to be welded. A ...
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WO/1980/000998A1 |
The pipes (2, 4) formed by metal pipes (1, 3), which are provided with an anticorrosion layer (6) of a fairly large thickness, need for the junction area, an independent insulating lining (7), since this area may not be coated with the a...
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WO/1980/000720A1 |
A tubular lining for lining passages is formed, such liner being constructed from a laminate comprising a resin absorbent layer (10) and an impermeable skin (12). The laminate is wrapped to tubular form with the skin outermost and the fr...
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JP7421392B2 |
To provide a coating method with use of powdered paint by which an inner surface can be coated with good efficiency and uniformly in a simpler manner in a pipe body comprising two parts having inner surfaces with irregularities of relati...
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