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WO/1991/014894A1 |
A fitting (10) for attachment to a tube (12, 14) by external swaging is disclosed. The fitting (10) includes an outer surface (18) that fits within the dies (20, 22) of a swaging tool (24), and an inner surface (26) that includes axially...
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WO/1991/012458A1 |
A tube union for coupling the ends of a pair of tubes (13, 14) which are butted together includes a sleeve (10) and two swaging collars (25) about the sleeve without other components. Grooves (16) and lands (15) in the sleeve mate with a...
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WO/1991/009246A1 |
A technique for forming a connection between two objects, a first one of which is heat-recoverable and comprises a shape memory alloy component. The second object is provided with one or more formations which, when the first object recov...
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WO/1991/009247A1 |
In a plastic pipe joining system a plastic sleeve (6) is provided to extend on both sides beyond the region of contact or closest approach to one another of pipes (2 and 4) to be joined with the sleeve being fused to both pipes, the slee...
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WO/1991/008413A1 |
A pipe joint composed of a pipe (11) having an outwardly extending flange (17), joint body (10), cylindrical fitting piece (20) put over the outer periphery of the joint body (10) and connecting the pipe (11) to the joint body (10) can e...
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WO/1991/005197A1 |
A method of fixing together end to end two tubular sections (5, 6) so that their internal passages (8) are coaxial and lead smoothly one into the other, the method comprising providing annular recesses(10) in the adjacent end faces of th...
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WO/1991/004433A1 |
A method of forming a connection between two objects such as tubes (1, 3) using a shape memory alloy component (13). One of the objects bears a ridge and the other object bears a groove. One of the objects is positioned within the end of...
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WO/1991/002918A1 |
A joint between pipes (12, 14) each having a liner (16, 18) of polyolefin such as polythene. The pipes are spaced apart and the liner protrudes from each and is joined to its neighbour by a fusion coupling (20). The pipes are interconnec...
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WO/1990/012237A1 |
A radially heat-recoverable, especially heat-shrinkable, sleeve (10) is used to impart an axial force to two objects (2, 4). Axially facing surfaces (12) of the sleeve (10) coact with axially facing surfaces (9), one on each object. At l...
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WO/1990/010170A1 |
A technique for making a connection to an object, for example a tube (20), comprises positioning a shape memory alloy collar (2) aroung the tube (20) the collar (2) having two circumferentially extending teeth (6, 8) formed in its intern...
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WO/1990/005872A1 |
A conduit connection fitting (1) comprises a core member (2) having an axial bore (3) and two or more spigot portions (4, 5). A sleeve member (6) encases the central part (7) of the core member (2) and is stepped adjacent each spigot por...
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WO/1990/001671A1 |
A crack growth limiter (1) consists of a pipe section (5) with insertions (6) of elongate form built into its walls and oriented at an angle to the expected crack growth direction. The insertions (6) are made of a material whose strength...
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WO/1990/000697A1 |
This invention relates to a pipe joint and to a coupling method for a pipe material by use of the pipe joint. The pipe joint has a main body portion having substantially the same diameter as that of the pipe material and increased diamet...
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WO/1989/012190A1 |
Said radial pressure seal consists of a sealing unit (A), having a dynamically balanced radial sealing lip extending outwardly or inwardly (1, 1'), and of a second sealing unit (B), having a counter-surface which can be cylindrical (4), ...
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WO/1989/003494A1 |
A method of and means for making pipe-to-pipe connections in which the pipes (10) are provided with socket ends (12) and with spigot ends (14) for mating with the socket ends (12) of pipes to be connected therewith. Each socket end (12) ...
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WO/1989/001118A1 |
A coupling arrangement between a manifold having nipples (300) and a solar panel (12) having nipple receiving orifices. Each nipple is formed with a plurality of primary circumferential projections (302) adjacent to the free forward end ...
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WO/1988/006505A1 |
A method and apparatus for low stress and non-distorsion welding a weld zone defined by one or more thin walled workpieces (5, 6). A temperature profile is generated across an area including the weld zone, the temperature profile compris...
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WO/1988/005881A1 |
A welded pipe joint comprising a sleeve (3) welded (5, 6) at each end thereof to the respective pipe (1, 2). The wall of the sleeve (3) at each pipe provided with a boring in which a nipple (11, 12) for oil is arranged. In connection wit...
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WO/1988/004005A1 |
Process for sealing a tubular or rod-like building component (3) in a receiving opening (2) of the body of a building (1) and a through-pipe (3) to be sealed in a wall passage (2) according to this process. A helix (4) having preferably ...
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WO/1988/001033A1 |
Weld joint for metal pipes. The object is to provide a weld joint which is easy to make and which has a clean surface inside the pipes. The ends of the pipes to be joined are flared and between the inner conical surfaces of the flared pi...
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WO/1987/006182A1 |
Hollow heat-shrinkable conductive polymer devices, particularly coupling members (2) for joining polymeric pipes (3, 4), have end sections (12, 13) of increased wall thickness so that, when current is passed through the device, the end s...
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WO/1987/001428A1 |
Interior coated pipes are connected together by elastic and plastic deformation of pipe ends (1, 2) by detonating an explosive charge (4). When this explosion takes place the coatings of the two pipe ends are joined to each other by mean...
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WO/1987/001427A1 |
A joint between tubular elements, wherein a tubular element (1) is provided with an extension-piece (13) and the other tubular element (6) is fitted into one or more recesses (12) of the extension-piece (13) by explosive plastic deformat...
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WO/1985/005306A1 |
The object of the invention is to join two pipe sections (1 and 2) together when one pipe section (1) is inserted in the other pipe section (2), and this is effected by arranging explosive (3) inside the one pipe section which, when deto...
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WO/1985/004938A1 |
A fluid fitting made up of telescoping sleeves providing an annular space (44) therebetween adapted to receive the end (45) of a tube (43). The outer sleeve (10) is attached to the inner sleeve (11) by being deflected around annular ridg...
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WO/1985/003114A1 |
The method for making the failure-resistant damper provides for fabricating a hollow cylindrical blank (1) of which the multilayer wall is provided with an artificial discontinuity (2) taking place at least in one of its layers. The diam...
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WO/1985/000646A1 |
In the coupling device, the pipe end portion (5) is compressed in a socket (1) of a tubular part (2) by progressive cold pressing by means of an axially movable press ring (4) so as to form a locked seal connection. A sleeve (3) comprisi...
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WO/1984/003547A1 |
At the jointing of pipelines (3), especially underwater, as well as at the repair of damaged portions, a jointing piece (1) must be inserted because the two pipe ends (5) cannot entirely be jointed with precision. The invention proposes ...
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WO/1984/000202A1 |
The invention relates to a removable clamp for coupling cylindrical or profiled pipes and aims at enhancing the clamping force, at achieving good compactness and rigidity after mounting. The clamp has a longitudinal rib (1) opening to th...
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WO/1983/002580A1 |
A method and apparatus for containing an annular body of liquid about a sleeve (13) spanning the abutting ends of pipe lengths (11, 12) and firing a charge of propellant (30), such as fast burning smokeless powder, in the liquid so as to...
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WO/1983/000061A1 |
A pipe and sleeve telescoped joint with the pipe (13, 14) and sleeve (12) in sealing engagement and keys (15) embedded in both pipe (13, 14) and sleeve (12) at their interface. The size and number of the keys (15) are calculated from the...
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WO/1982/003901A1 |
The pipe connector (3), particularly for a radiator, is made of a material which is harder than that of the pipe (2). The connector (3) has a profile (4), the pipe is applied by pressure on the profile of the connector, thereby the conne...
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WO/1982/001488A1 |
A method to join two elements (4, 5), and a joint according to the method, a first element (4) to be joined having an internal peripheral surface located surrounding and at a distance from an external peripheral surface of a second eleme...
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WO/1981/002460A1 |
Joining of two pipes having substantially the same diameter by force fitting into a reciprocating sleeve. This joining comprises the force fitting of two pipes (1-9) on either side of a sleeve (2) which has a hammered central portion hav...
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WO/1981/002459A1 |
Two plastic pipes (6, 9) are connected by the steps of selecting the pipes such that the first pipe (9) has an unstrained O.D greater than the unstrained I.D. of the second pipe (6), flaring an end portion (7) of the second pipe (6) at a...
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WO/1981/002268A1 |
This invention relates to the joining together by brazing or soldering of metal tubing. In more detail the invention is directed to a coupling for joining together lengths of metal tubing by brazing or soldering, the coupling comprising ...
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WO/1981/000072A1 |
An improved method of forming a socket weld connection between a tubular element (10) and a vessel (20), of the type wherein a recess (30) having a diameter slightly greater than the diameter of the tubular element (10) is bored into the...
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WO/1978/000004A1 |
A method of securely joining a pipe (1) to a pipe fitting (3) without the need for rotating either element. The fitting (3) or in some cases the pipe (1), is expanded by heating whereby the other element may be inserted in it and the ele...
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JP7477775B2 |
A refrigerant pipe constituting a refrigerant circuit (4) of a refrigeration apparatus (1) includes a first pipe (21) and a second pipe (22). The first pipe (21) includes a first pipe body (21a) including stainless steel and a first conn...
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JP7477777B2 |
To facilitate connection between a refrigerant pipe made of stainless steel and a refrigerant pipe made of a material other than the stainless steel.A refrigerant pipe 10A comprises a first pipe 21 and a second pipe 22. The first pipe 21...
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JP7473615B2 |
This coupling device for a tubular member is provided with: a base stand for holding an inner member and an outer member in a state in which the outer member is disposed around the inner member; a plurality of pressing members that are s...
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JP7462124B1 |
The branch pipe 1 has a main pipe inner layer part 21 and a main pipe outer layer part 22 surrounding the main pipe inner layer part 21, and an outer layer side opening 22h that penetrates the main pipe inner layer part 21 and the main p...
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JP2024044052A |
An object of the present invention is to provide an air conditioning connection structure that can easily connect an end of an air conditioning duct and an air conditioning device in an air conditioning system of a building in a short ti...
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JP2024514426A |
The present application relates to a branch pipe assembly and air conditioning equipment, and the branch pipe assembly connects a main connection pipe (1), a branch connection pipe (2), and a main connection pipe (1) and a branch connect...
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JP2024513318A |
The Company provides fitting assemblies, four-way valve assemblies and air conditioning systems. Here, the fitting assembly includes a first pipe fitting (10), a second pipe fitting (20), a first connecting sleeve (30) connected to one e...
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JP7453941B2 |
To provide a reactor fuel rod capable of increasing the joint strength at a joint between a fuel cladding and an end plug by using a SiC material as a material for the fuel cladding and end plugs, a manufacturing method of the fuel rod, ...
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JP2024511699A |
A first connecting pipe (10) having a first connecting segment (11) and a second connecting pipe (10) having a second connecting segment (21) and having a different material than the first connecting pipe (10). a connecting pipe (20), a ...
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JP3245778U |
An object of the present invention is to provide an elbow with a positioning function that allows easy positioning of the mounting posture on an object and shortens working time. [Solution] The elbow is attached to a mounting hole that i...
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JP2024508316A |
The present invention provides a system (1) comprising an apparatus (2) for manufacturing a piping unit (5) from a pipe (3) having a pipe outer surface (8) and a pipe fitting (4) having a pipe joint outer surface (13). , and a method for...
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JP7433078B2 |
To easily fit two members composed of a nipple and a water channel portion by improving fixing force even when a temperature is increased or decreased compared to that at the time of fitting.A liquid cooling device includes a water chann...
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