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Patent Searching and Data


Matches 701 - 750 out of 5,280

Document Document Title
WO/1997/048941A1
Thermal insulation and corrosion resistant covering for steel pipe transporting oil, gas or other fluids with high temperature. The concept comprises a steel pipe (1) surrounded by a plastic pipe (3) and the space between the steel pipe ...  
WO/1997/042444A1
This invention concerns a coating material which can be used to rehabilitate the inside of pipelines, especially long-distance energy pipelines. Moreover, the invention concerns a coating produced out of the coating material and a proces...  
WO/1997/034101A1
A bi-metal lined pipe and methods of forming such a pipe suitable for spooling onto a reel for marine pipelaying applications, the pipe comprising a carbon steel outer pipe and a liner of corrosion resistant metal, in which the liner is ...  
WO/1997/027830A1
The invention concerns a universal tape that has a first adhesive closure tape (5) along one edge of the upper side (3) of the tape (1) that is congruent with the edge of the tape (1) in the longitudinal direction and is sub-divided into...  
WO/1997/025567A1
Method for renovation of pipelines, comprising introduction of a lining pipe into an existing pipeline, said lining pipe having a length corresponding to the length to be renovated, and consisting of a fusible polymer in a folded conditi...  
WO/1997/025160A1
A method of treating concrete pipe (10) is carried out by providing an aqueous lime slurry supply having a lime solids content above 35 % by weight of the slurry. This is mixed within an amount of dispersing agent and may contain an alka...  
WO/1997/025202A1
The invention relates to a metal surface coated with a thermoplastic polymer and comprising at least one adhesive arranged between the metal surface and the thermoplastic polymer, said adhesive having a VICAT point lower than or at the m...  
WO/1997/020668A1
The present invention relates to an improved process and the relative equipment for lining concrete pipes and particularly ducts for sewage and irrigation uses. Said lining, consisting of bisphenolic, isophthalic, epoxydic, polyurethanic...  
WO/1997/017567A1
There is provided a procedure and an arrangement for coating a bare joint (10) between two pipes (12, 14) otherwise coated with a pipe-coating (16, 18). The procedure and arrangement involves providing two pipes (12, 14) precoated with a...  
WO/1997/014752A2
A polymerisable composition comprising a mixture of an unsaturated oligoester, a cross-linking agent and a complex surface-active agent, wherein the complex surface-active agent comprises an oxyethylated alkyl phenol ester having the gen...  
WO/1997/012209A1
A flow tube (10) has a metal outer tube (12) and is lined (26) with an ETFE fluoropolymer that is resistant to corrosive chemicals and mechanical damage even at high temperatures. The inner surface (22) of the metal tube (12) is coated w...  
WO/1997/004949A1
A system for protecting sections of pipe or tubing (100) from corrosion includes depositing a continuous, low-porosity, non-corrosive, metallized layer (12) within the end portions (102) of a section of pipe or tubing (100) and on its en...  
WO/1997/001429A2
An extrusion apparatus and method, and a tubular product and a pipe made of several different materials. The extrusion apparatus according to the invention comprises at least one stator (1, 6, 10), at least one rotor (2, 2a, 2b), and at ...  
WO/1996/029535A1
The invention relates to corrosion protection for the weld points on plastic-coated steel pipes without any coating at the weld points. To the uncoated region are applied laminates of fibre-reinforced, cured, unsaturated polyester resins...  
WO/1996/028686A1
A copper alloy pipe for water/hot water supply, equipped with a protective film on the inner surface thereof includes a pipe main body made of a copper alloy containing at least 0.02 wt.%, in total, of at least one of Zn and Mn, not grea...  
WO/1996/028684A1
A pipe coating comprising an anti-corrosion coating having a film thickness typically of from about 350 'mu'm to about 500 'mu'm, and a protective weight coating (2) of a urethane based copolymer applied over said anti-corrosion coating,...  
WO/1996/026384A1
Steel pipe items such as pipes (10) are each joined by a girth weld (14) to tubular steel fittings (12) and the pipes (10) are each lined by pulling a polyethylene liner (30) through a die and through the pipe (10) and through the fittin...  
WO/1996/022873A1
A conduit liner which is made by cladding the inner surface thereof with hot melt fluidized deposition thereon while the conduit is heated. Preferably, the fluidized deposition is of polymeric material which may include a low friction ad...  
WO/1996/018844A1
A valve or pipe component has a surface lining of chemically inert material carried by a coating of sintered metal affording interstices penetrated by the lining material so as to provide a mechanical key. The lining material may be PFA ...  
WO/1996/018058A1
Described is a preferred method for manufacturing a coal tar enamel-coated steel pipe, in which a primer coat of epoxy resin is applied to a preheated steel pipe, and coal tar enamel is applied to the primer coat prior to full curing of ...  
WO/1996/018064A1
A pipe is assembled from sections (10, 12) of a liner pipe formed of a moulded glass reinforced plastics material (GRP). A sleeve (14), also of moulded GRP, sealingly surrounds the joint between the sections (10, 12). An outer pipe of po...  
WO/1996/014531A1
Ducts for transporting and/or distributing fuel gases and liquefied gases, including a polyethylene layer and an inner and/or outer polyamide layer. Such ducts may advantageously be joined together by adhered sleeves to form medium- or l...  
WO/1996/010710A1
A screw joint of an oil-well pipe having a high seizure resistance. The threaded portion and metal seal portion of the pipe has a manganese phosphate chemical conversion treatment coating layer of 5 to 30 'mu'm thickness or a double-laye...  
WO/1996/010147A1
Discharge pipe for discharging hot substances, which discharge pipe consists of an outer pipe, and an inner pipe placed coaxially inside the outer pipe, the inner pipe and the outer pipe enclosing a space, which is filled up with insulat...  
WO/1996/009486A2
An elongate deformable conduit and method of fabrication thereof adapted for the subterranean conveying of petroleum products and petrochemicals has an inner copper tube to which is bonded an outer layer of flexible polyvinyl chloride up...  
WO/1996/009493A2
A refractory tile adapted for protecting boiler tubes from the corrosive and erosive effects of a hot gas stream comprises an elongated ceramic body covering only that side of a boiler tube upon which the hot gas impinges. The tile is hu...  
WO/1996/006710A1
A process for renovating pipes in which internal deposits in the pipe are removed by flowing abrasive agents and the pipe is coated internally with a viscous, curing material is performed to obtain a conveyance quality comparable to that...  
WO/1996/006299A1
The invention concerns a process for internally coating hollow bodies with plastics material. The process comprises the following steps: introducing a coating probe into the hollow body to be coated; applying the necessary thickness of a...  
WO/1996/004137A1
An article for wrapping objects comprising a plurality of layers, including a first layer of a wrap material, an intermediate layer of an adhesive material and an inner layer of a solids material, said article providing resistance to cat...  
WO/1996/004500A1
An anode cable installment system in which the apparatus may comprise a plow (30) for creating a tunnel; a conduit (38) for delivering a linear anode (16) to the tunnel; and a chute (34) disposed proximate the conduit (38), the chute (34...  
WO/1996/003222A1
A method for providing a protective coating on an underground or underwater pipeline tube (1), said coating including at least one polypropylene and/or polyethylene layer. The method comprises the steps of depositing at least one layer (...  
WO/1996/002785A1
In this invention a pipe (1) which is suitable for use in underground pipelines and the like comprises an inner tubular member of plastics or metal (2) around which is a layer (3) of bitumen or plastics material surrounded in turn by a w...  
WO/1996/001965A1
Gas pipe extenders to compensate for movements in ground-laid gas supply pipes caused by mining operations have been found to leak owing to their construction or have been inadequately extendible or capable of insufficient lateral moveme...  
WO/1995/035461A1
An article, for example a pipe (11a, 11b), has a first covering (13a, 13b) such as a polymer layer, and a second covering, such as a repair patch (18a) or a repair deposit of melt-on adhesive (22) or a wrap or a sleeve (16) protecting a ...  
WO/1995/033953A2
Improved pipe-coating materials (10) and methods, and improved coated pipes (30) formed thereby, in which a thermally insulating coating is formed from a strip of striated insulating material (10), such that individual bars (16) of said ...  
WO/1995/033579A1
A process for treating metal pipe in the field is provided, for repair, rehabilitation of protection. The process comprises coating at least part of a pipe surface with first an undercoat of a thermosetting polymer such as a polyurethane...  
WO/1995/030109A1
A multi-layer tube (10) comprises a metal tube (12) having an outer surface (13) and a zinc layer (14) bonded to the metal tube outer surface (13), wherein the zinc layer (14) is selected from the group consisting of zinc plating, zinc n...  
WO/1995/029275A1
An elongate electrode, usually an anode, is provided, suitable for use in an impressed current corrosion protection system. The electrode comprises a central elongate core (4), usually a metal such as copper, an optional conductive polym...  
WO/1995/024433A1
A curable poymeric composition (6) which is a liquid at 20 �C and which comprises 25 to 60 % by weight of a resin component which comprises an epoxy, 5 to 25 % by weight of a curing agent which comprises two components, a first compone...  
WO/1995/022713A1
Means for securing a polymer pipe liner (14, 16) to the inner surface of a pipe comprises an end piece (100, 101) consisting of a hub portion (102) and a corrosion resistant metallic insert (104). The polymer hub is fusion welded to the ...  
WO/1995/022028A1
A plumbing fixture (10) for carrying drinking water comprised of metal, particularly of copper and its alloys with portions of zinc and lead, which is provided with a lining or coating of tin (18) disposed on at least the interior surfac...  
WO/1995/019853A1
Apparatus (10) and method applying a coating to the interior of a pipe (13), a coating station (11) contained within an oven (12), means (14, 15) releasably supporting a selected length of pipe (13) rotatably and in horizontal dispositio...  
WO/1995/019522A1
Pipes for the brake, fuel supply or hydraulic system of a motor vehicle have an inner steel tube (1) with an outer zinc coat (3) covered by an outer olive-coloured chromated layer (5) wrapped in a plastic enveloping layer (7) formed by e...  
WO/1995/016160A1
A method of providing corrosion protection to a joint area in a weight coated marine pipe line and a tape suitable for use in that method. The pipe line comprises a plurality of pipes (2) each with an anti-corrosion coat (4) and a weight...  
WO/1995/014879A1
A conduit coupling (20) is comprised of a male conduit (22), a mating female member (24), means for sealing (26) and a fastener (28) to couple the male conduit (22) to the female member (24). The male conduit (22) has a first and second ...  
WO/1995/013917A1
A metal pipe and method of forming the same with an integrally formed liner (16) for use in corrosive and abrasive environments is disclosed. The liner (16) is comprised of a relatively thick high density polyethylene which is thermally ...  
WO/1995/012087A1
A tape (2) covering for elongate substrates such as metal pipes (1) is provided. At least one edge of the tape is chamfered (5), and in preferred embodiments the angle of the chamfer is no greater than 25� especially no greater than 7ï...  
WO/1995/011863A1
Cement liners for metal pipes include a fibrous material, such as glass fibers, to prevent cracking and/or inhibit crack propagation.  
WO/1995/012086A1
The subject invention provides a flangeless pipe joint for polymer-lined transfer or polymer-lined process piping, in particular slip-lined, loose-lined, interference fit, or swaged polymer-lined piping systems. The subject invention fur...  
WO/1995/009999A1
A line for conveying fluids comprises a metal tube (1) and a plastic cover (4). The metal tube is formed of flexible corrugated tubing (1). The plastic cover (4) is disposed on the metal tube by extrusion, wherein the cover is attached t...  

Matches 701 - 750 out of 5,280