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Patent Searching and Data


Matches 551 - 600 out of 6,861

Document Document Title
WO/1997/010092A1
The present invention relates to an apparatus for producing pipes of a mouldable material, preferably plastic, comprising an extruder, a cylindrical mould comprising chill moulds (4, 5), a mandrel (8) inside the extruder and a kernel (9)...  
WO/1997/003815A1
Flexible reinforced hose is manufactured by applying about a support mandrel (10) at least one layer (12, 13) of plastics material and at least one layer (12, 14) of reinforcement material and then subjecting the assembly so formed to a ...  
WO/1997/000208A1
A process is disclosed for manufacturing an in particular multilayered tubular body (1) with at least one partition (7) that extends over its length and forms adjacent longitudinal chambers (A, B) by using a strip of foil (9). A strip (1...  
WO/1996/036476A1
The invention provides a curable synthetic resin matrix which is formulated so that it can be extruded and will form a stable flexible extrudate. Its main use if for lining tubes which can be placed on pipelines or passageways and cured ...  
WO/1996/033066A1
A method for improving the radial enlargeability and other properties of tape-reinforced tubular vascular graft formed of sintered fluoropolymer(s), such as expanded, sintered PTFE. Broadly, the method comprises the step of radially shri...  
WO/1996/031723A1
The invention relates to a method for manufacturing a multi-layer corrugated pipe and to a corrugated pipe manufactured by the method and comprising an inner tube (2), a corrugated outer tube (5) and a plastic layer therebetween. Separat...  
WO/1996/029194A1
A method for the manufacture of an electrofusion fitting, which comprises the following steps: (i) assembling an electrical heating element and a layer of thermoplastic polymeric sheet material (13) on a support member (1); (ii) heating ...  
WO/1996/026381A1
A composite tube (10) for use in such applications as an automobile heater hose has inner and outer tubes (11, 15). The inner tube (11) has a corrugated central section (12) and cylindrical end portions (14). The outer tube (11) is bonde...  
WO/1996/026062A1
A method of molding a hollow article, which comprises the step of injecting a molten resin into a main cavity having one end provided with a pressure port and a floating core and the other end communicating with a sub-cavity through a po...  
WO/1996/026380A1
The technical problem addressed by the invention is that of obtaining a metal-plastic pipeline with greater load-carrying capacity and low hydraulic wastage, improving the stability of the production process, and facilitating in technica...  
WO/1996/023698A1
The outer surface (1) of a container, for example an aerosol can, is produced from strips of a flat material that surround the hollow space (3) inside the container and are wound so as to overlap in an overlapping area (2). The overlappi...  
WO/1996/022485A1
A plastics pipe which comprises an inner core and an outer protective layer, in which the dimensions of the pipe and the protective layer are such that the ratio of the external diameter of the pipe to the thickness of the protective lay...  
WO/1996/021552A1
A mould core assembly (1) for an angled joint coupler which comprises first (2) and second (3) elongate mould parts which can be assembled in a first in-line configuration wherein their longitudinal cores lie parallel or on a common axis...  
WO/1996/018840A1
Conduit made of a multilayer material and intended to convey a fluid of a motor vehicle, comprising an internal layer (2), an intermediary layer comprised of a thin sheet material (6) closely enclosing the internal layer (2), and an exte...  
WO/1996/009151A1
The invention concerns a method of filling a matrix in order to form a tube head integrally on a tube body. A filling method which lasts for an invariable period of time is already known but, when given "high tech" plastics are used, thi...  
WO/1996/009159A1
A method for making an internally reinforced tube (10-10) for use in manufacturing bicycle frames of the tube and lug type. The method includes providing a plurality of heat expandable mandrels (80-1) having shapes related to the desired...  
WO/1995/028274A1
The invention concerns a process for manufacturing a tube from plastic. The body of the tube has an outlet aperture smaller in diameter than the tube body itself, and a cap is provided which can be fitted over the outlet aperture to clos...  
WO/1995/026873A1
An electrofusion coupler, for connecting plastics pipes end to end, is formed using a mandrel (10) having at spaced apart locations therealong first and second terminal holders (14) which can be retracted inwardly into the mandrel (10) a...  
WO/1995/021051A1
A method for producing polymeric tubing (20) which is resistant to permeation by organic material contained therein which has at least one region defined by a plurality of outwardly extending annular ridges. In this method polymeric mate...  
WO/1995/017997A2
A method of making a product including continuously feeding an elongated flexible tubular bladder, and braiding a first ply of a tubular braid of first yarns including reinforcing fibers and moldable material on the bladder, the tubular ...  
WO/1995/017295A1
A travelling mold tunnel (10) for molding profiled thermoplastic pipe, e.g. annularly or helically ribbed or corrugated pipe (26) or even substantially smooth walled pipe, comprises a number of mold blocks (16a, 16b, 16c) which move forw...  
WO/1995/015844A1
In a process that is particularly suitable for producing pipes or hoses, the reinforcing material and the matrix material are no longer produced separately but together in a woven, knitted, braided or non-woven fabric. The matrix materia...  
WO/1995/015253A1
A heat fusion coupling element comprising: a hollow sleeve member (2) formed from a fusible polymeric material, the sleeve member having at least one electrical heating element (3, 4) disposed about its inner (5) and outer (7) surfaces, ...  
WO/1995/015461A1
A method for applying a closing tape to an extruded foam article is disclosed. The tape (40) is applied immediately after the article is extruded and while the article is still subject to shrinkage, which is common with extruded foamed p...  
WO/1995/011947A1
A PVDF binder containing alkyl (alkyl)acrylate units and units having a carboxylic acid function. The PVDF-containing binder forms a barrier against hydrocarbons. Materials containing said binder, particularly fuel pipes including polyam...  
WO/1995/008854A1
A welding sleeve has a heating element (5) which consists of a resistance wire (6) mounted on a winding support (3). The ends of the resistance wire are inserted in slits of the retaining elements formed on the winding support (3), such ...  
WO/1995/007432A1
An electrofusion pipe fitting (1) comprises: a hollow thermoplastic sleeve member (2), an electrical heating element (7) disposed within the hollow sleeve member, electrical terminals (8) disposed on an outer surface of the hollow sleeve...  
WO/1995/007176A1
A fuel hose composed of a tubular internal layer of a fluororesin and a thermoplastic resin or rubber layer formed on the external periphery of the internal layer, wherein the internal layer is formed from a fluororesin wherein the ratio...  
WO/1995/005555A1
A thin-wall PTFE (polytetrafluoroethylene) tube in the form of a tube of porous expanded PTFE film wherein the porous PTFE film has a microstructure containing a multiplicity of fibrils oriented substantially parallel to each other. The ...  
WO/1995/005277A1
A seamless tube (25) of porous polytetrafluoroethylene having a microstructure of nodes (31) interconnected by fibrils (33, 35, 39) and having a wall thickness of less than about 0.20 mm.  
WO/1995/004644A2
Method for manufacturing a plastic tube provided with a wound reinforcement (2), in which one or more reinforcement layers (2) are wound around an extruded inner tube (1) made of thermoplastic material and an outer casing (4) is extruded...  
WO/1995/003164A1
A porous tube of a fiber-reinforced plastic, which consists basically of fiber having a high tensile elastic modulus, such as glass fiber, and a matrix resin, such as polyethylene, and which has open cells and a high mechanical strength....  
WO/1995/003130A1
A laminar flow section (16, 17) and a turbulent flow section (18, 19) are formed contiguous to each other along the length of a flow regulating passage (13) in a drip irrigation hose. Responsive to the pressure in a water supply passage ...  
WO/1995/001854A1
An oil hose wherein (1) the inner layer comprises a vulcanized hydrogenated nitrile rubber compound, the intermediate layer comprises a copolymer rubber compound composed of a vulcanized unsaturated nitrile and a conjugated diene, and th...  
WO/1994/025789A1
The invention provides that a reinforced resin impregnable flexible tubular structure (68) is manufactured by feeding an inner layer (12) in tubular form over a floating mandrel (62) which is held magnetically suspended so that the layer...  
WO/1994/025284A2
A printing sleeve for a flexographic printing process is prepared by spirally winding successive adhesive coated tapes (40, 42) onto a forming mandrel (22) such that the outer tape covers the seam in the previous layer, providing heat to...  
WO/1994/021420A1
An ultra small diameter reinforced catheter or the like type of tubular product is produced by winding reinforcing strands (20) on the surface of a plastic tube (22) and introducing the same into a heated die (16) which compresses the st...  
WO/1994/019638A1
Our development provides a hose (10) suitable for use in transporting refrigerants. The hose has an inner tube (20) with improved flexibility while maintaining low gas permeability without the use of extractable plasticizers. The inner t...  
WO/1994/017979A1
In a process for manufacturing hoses with connection elements, in particular multilayered hoses, the connection elements (7, 8) are introduced into the hoses during their manufacture, and are form-fittingly and sealingly enclosed by the ...  
WO/1994/016959A1
A method for producing a tube (3), with a wall containing over 60 vol % of a plastic material, from an essentially cylindrical tubular blank (4) with inner and outer surfaces made of one or more polymeric plastic materials, said tube (3)...  
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...  
WO/1994/011663A1
The present invention relates to corrugated protective sleeves (10) and for enclosing lengths of conducting equipment, such as cables, wiring and tubing, and more particularly to corrugated sleeves (10) and formed of a single piece of pl...  
WO/1994/008772A1
In a process for manufacturing formed parts made of hot-formable plastics, in particular polyolefines such as polyethylene and polypropylene, the plastic material is heated up to or over its ductile temperature, is formed in said state i...  
WO/1994/006846A1
Described herein is a melt-processable block copolyesterimide comprising the repeating units (I), (II) and (III) and, optionally, a repeating unit (IV), wherein (I) is a repeating unit of formula (I) wherein R is an aliphatic polyether c...  
WO/1994/005485A1
An improved welding rod having a solid homogeneous core of thermoplastic material and a resistance element comprised of a plurality of wires is presented with a method and apparatus for forming the welding rod. The welding rod is positio...  
WO/1994/004611A1
A hose composition is provided which comprises a halogen-containing copolymer of a C4 to C7 isomonoolefin and a para-alkylstyrene, fillers, rubber compounding additives and a curing agent. A hose comprising at least a portion made from t...  
WO/1993/025374A1
A method of producing segmented hollow body devices (36) and the resulting products (36). The segmentation is accomplished by providing areas (26) of increased cross section around the circumference of the preform (20) followed by axial ...  
WO/1993/025884A1
The invention relates specifically to use of low cost thermoplastics such as PVC, and CPVC as high vacuum component material. We have discovered that when PVC or CPVC is exposed to high and ultra high vacuum pressures for a period of tim...  
WO/1993/024299A1
A process for producing a tubular laminate which comprises subjecting the surface of a tubular fluororesin molding to electric discharge treatment in an inert gas atmosphere containing a functional organic compound and coating the result...  
WO/1993/021005A1
Apparatus for making a pipe-fitting, of the kind used to sealably connect the ends of plastic pipes, such as gas pipes, comprises head portion (14) and a support arm (15) the head portion (14) having a cutter (16) arranged to cut a helic...  

Matches 551 - 600 out of 6,861