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WO/1994/024477A1 |
A coupling member (1) for use in forming a spin-welded joint between adjacent ends (6, 7) of plastics pipes (8, 9) comprises an elongate sleeve (2) having a longitudinal bore (3), opposite ends (4, 5) of the bore (3) constituting sockets...
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WO/1994/024479A1 |
A plastics pipe joint has internal seal rings (21) and end caps (11) retaining these. Each end cap has an outwardly extending guide sleeve or skirt (31) for guiding pipe ends into the coupling sleeve, particularly in the case of pipes of...
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WO/1994/024475A1 |
A pipe coupling is provided with means to fix at least a pipe end. The fixing means comprise a stub (1) and a sleeve (5) extending radially outside it at a distance so as to provide between these an annular depression (13) in which the p...
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WO/1994/024478A1 |
A method of covering a pipeline, which can be carried out either in the factory or in the field comprises enveloping the pipeline with a covering such as a helically wound tape (20) comprising a heat recoverable layer (21), having first ...
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WO/1994/023234A1 |
A low carryover fitting assembly for coupling tubing (64) to a device (18) having a sealing surface (16) is presented. The fitting includes a ferrule (220) having a conical head (222) for seating against the sealing surface (16). The fer...
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WO/1994/023237A1 |
The pipe joint proposed includes a connector (1) with at least one spigot (2, 2', 2") on which the end (6) of a pipe made of thermoelastic, cross-linked polyolefin is fixed by opening out and self-reforming to form a secure, gastight joi...
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WO/1994/020781A1 |
A connection for and a method of connecting the ends of two joints of low modulus, low hardness, low strength plastic pipe. The connection includes a threaded box (10) on one joint and a threaded pin (12) on the other joint. The box has ...
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WO/1994/018486A1 |
A method for establishing a connection between one end (8) of a pipe (1) made of a plastic material having memory properties and a flanged connector sleeve (3) of a pipe-connecting piece (2; 11), comprising expanding the pipe-end (8) to ...
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WO/1994/017323A1 |
The present invention concerns a nipple (1) made up of plastic meterial and provided with two end threads (2) and a central length of tube (3) having external diameter equal to the diameter that a plastic material tube must have with res...
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WO/1994/015445A2 |
The invention concerns a process for the radial friction welding, preferably of reinforced pipes and end inserts made of thermoplastic material, in the production of pipelines for use under pressure in harsh environments. The aim of the ...
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WO/1994/016255A2 |
The problem underlying the present invention is that of providing a safety shut-off for gas lines in which the valve body bed is frictionless and maintenance-free and which presents only a minimum flow resistance. In addition, the safety...
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WO/1994/015137A1 |
A joint between two hollow pipes (1, 2) is formed by inserting the pipes (1, 2) into the sleeve (100). The sleeve (100) is made of a similar or compatible material to that of the pipes (1, 2) which are to be joined. The pipes (1, 2) are ...
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WO/1994/013457A2 |
A spigot (22) and socket (20) are welded together by inducing a current in an induction member (12) embedded in the weld region. The temperature of the induction member (12) rises until it reaches its Curie temperature, at this point the...
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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/1994/008772A1 |
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...
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WO/1994/008278A1 |
An electro-welding sleeve (A) with a heating component (3) is equipped with an input-output medium (4) for identifying pertinent production and welding data. This input-output medium works bidirectionally, and so the data generated when ...
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WO/1994/003321A1 |
The present invention provides a method of joining a body (1) of crosslinked polyolefin to another body (3) formed of crosslinked polyolefin comprising the steps of heating the surfaces of the crosslinked polyolefin bodies (1, 3) to be j...
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WO/1994/001652A1 |
A method of joining tubing with a gas tight seal is provided by a female tube (1) and a male tube (2). At least one of the internal surface of the tube (1) and the tube (2) is provided with a grooved surface (4), the surface (4) being of...
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WO/1994/001673A1 |
A device for fitting a heated member (8) to a hollow body (1) comprising at least one cold fluid inlet duct (2) and at least one fluid outlet duct (3b), said hollow body (1) being made of a thermoplastic material which is unable to withs...
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WO/1994/000286A1 |
A resin hose connecting structure which consists of a resin hose (10) composed of a blow molded hose body (12) an end portion of which is molded out of a hard thermoplastic resin, and a joint member (14) molded unitarily with the end por...
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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...
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WO/1993/017853A1 |
An article (2) in which at least part of a surface (8) of a polymeric element has an embossed pattern (6). The article may be either heat-recoverable or non-heat recoverable. If the article is heat-recoverable, when heated the article re...
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WO/1993/017215A1 |
When drilling in soil and simultaneous loading of casing tube it is desirable to be able to use casing tubes of plastic material such as PEH-plastic. This is made possible by a special design of a casing shoe (5) giving a strong joint be...
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WO/1993/017266A1 |
A secondarily contained underground piping system which interconnects at least one underground storage tank (TS¿1?, TS¿2?, TS¿3?) dispensing pump to at least one above-ground dispensing unit. The system includes an originating chamber...
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WO/1993/017272A1 |
The invention is a device for providing a clamping force about a connection end of elastomeric hose (14) and tubing. The device includes a heat shrinkable polymer, having a diameter reducing release temperature, formed into a band. The b...
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WO/1993/016290A1 |
A creep resistant metal to plastic interconnection is provided wherein the plastic member (14) is restrained from creeping or pulling apart from a metal member (12) by use of a metal sleeve (16).
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WO/1993/016319A1 |
In a pipe clip for tapping and closing (77, 80) existing supply ducts (40) made of plastic, the upper shell (10) of the clip is made of plastic and is provided with a single-piece pipe socket (11). The upper shell (10) of the clip may be...
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WO/1993/014342A1 |
A plastic pipe (10) includes a pipe main body (12), and, at the end portion of the pipe main body (12), there is formed a receiving opening having an enlarged diameter, which is provided in the inner surface or in the vicinity of the inn...
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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/1993/009373A1 |
The object of the invention is to provide a method for complete sealing and combining of a sleeve (1) that by bending both ends of a sleeve (1) are hollow rails (2, 3) formed, one (2) of which is combined with a sealing member (4), the o...
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WO/1993/008668A1 |
A dual plate heater (2) provides two parallel temperature self-regulating heater plates (6, 8) or wire mesh comprising ferromagnetic material with one or more electrically energized coils (4) parallel to and located between the heater pl...
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WO/1993/007416A1 |
A fluid flow connection is proposed for use in low pressure air delivery systems of the kind used in passenger aircraft, the connection including a frusto-conical membrane (13) interposed between an air delivery duct (11) and an outlet e...
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WO/1993/005332A1 |
An end (13) of a pipe (12) made of polyolefin is cold-deformed, i.e. at the ambient temperature, by means of a spreading mandrel. After the spreading mandrel is removed, the enlarged pipe end (13) and a desired connecting piece or the en...
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WO/1993/004311A1 |
The invention relates to a sleeve for connecting two pipe ends (1, 2) by adhesive injection into two annular spaces (3, 4) formed between the outer surfaces of the pipe ends (1, 2) and the inner surface of the sleeve, with a tubular basi...
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WO/1993/003273A1 |
A metal tube (14), such as an inlet, outlet, return, or cross-over tube, is connected to a non-metallic fuel rail (12) by means of a tubular sleeve (34) that has one axial end (36) embedded in the fuel rail (12) coaxial with the hole (28...
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WO/1993/002316A1 |
A sealing system is described for joining imperfectly abutting pipes (2), particularly pressurised pipes. The system comprises a sealing member (16), typically sleeve-like and a further member (14) that is rigid and also typically sleeve...
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WO/1993/000546A1 |
A system for connecting together pipes and/or pipe fittings (4) formed from a composite material comprises a sleeve (5) having opposed ends (7). The sleeve (5) has an internal wall (8) which is formed so that an annular cavity (11), for ...
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WO/1992/022419A1 |
The present invention relates to a method for joining spirally wound thermoplastic pipes (1, 2) of a hole profile together, characterized by the following steps: working the end surfaces (3, 4) of the spirally wound thermoplastic pipes (...
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WO/1992/019438A1 |
The present invention relates to a method for manufacturing a joint pipe (1) from a spirally wound thermoplastic profile (7) at an end of a thermoplastic pipe (4). The invention is characterized in that the end of the pipe (4), which wil...
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WO/1992/018322A1 |
A pipe joint member for use in connecting the ends of synthetic resin pipes in various types of pipings to each other. This pipe joint member (1) consists of one or more socket members (2) formed into a cylindrical shape and provided at ...
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WO/1992/017328A1 |
The invention relates to pipe couplings and particularly to the provision of a welded connection between adjacent pipe lengths (1, 2) of plastics material. In this regard such techniques as butt welding and electrofusion welding are wide...
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WO/1992/015182A1 |
The invention provides a system and method for joining plastic members including heaters fabricated from a conductive wire (26) coated with a ferromagnetic material (28) and providing ratios of at least 4 to 1 between the areas over the ...
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WO/1992/011485A1 |
Lengths of ribbed tube (10) having ribs which upstand appreciably from the main body of the tube may be coupled together using novel coupling ends (12, 112 and 14, 114, 214) of the tube. Alternatively, such ribbed tube may be coupled to ...
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WO/1992/009842A1 |
A joint by electric welding includes a main body, in the proximity of the joining surface of which a magnetic alloy material continuing in its axial direction is embedded. In the part to form a cold zone on the outer surface of the main ...
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WO/1992/005674A1 |
A conductive polymeric tape has elongate electrodes (6), extending along its long edges, and comprises a central longitudinal strip (8) of different resistance to the remainder of the tape. The strip (8) extends part way only along the t...
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WO/1992/002754A1 |
A tubular article comprises a double walled tube (1), preferably of an elastomeric material having a friction reducing means (4) between the two walls (23) of the double wall. The friction reducing means comprising a liquid containing di...
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WO/1991/018733A1 |
A sealing system (10) is provided for composite fabricated pipe sections (12, 14, 16) having threaded connections on the end thereof with said connections being of composite material for use in assembling pipe sections in a piping system...
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WO/1991/018233A2 |
In the invention proposed, elements (12a, 12b) of a socket-pipe system with at least one socket joint (10) are manufactured in a moulding press from plasticized material made of mixed waste plastic, in particular waste plastic from house...
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WO/1991/018239A1 |
A cylindrical high-pressure container comprises two halves (10, 12) which are telescopically pushed together and glued. The glue joint comprises an internal double cone (24, 26) which readily fits onto an external double cone (28, 30), w...
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WO/1991/015706A1 |
An electrically fusion-bonded joint includes a body proper and is provided with a heater including a magnetic alloy piece having a fixed degree of Curie temperature at a portion in the vicinity of the body proper surface to be bonded so ...
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