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WO/1993/013345A1 |
In a method for securing an elastic, circumferential seal (1) on a tubular element (2), a base portion (4) of the seal (1) is applied against the tubular element (2), whereupon a clamping strap (7) is tightened on the base portion (4) to...
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WO/1993/011379A1 |
The invention concerns a device for sealing joints (16) between concrete components, e.g. the joints between assembled sewer pipes (10, 11). The invention calls for instance for annular sealing strip (14) made of a prepolymer of, for exa...
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WO/1993/009374A1 |
A fitting (10) for attachment to a tube (12, 14) by swaging comprises a cylindrical sleeve (16) having a tapered outer surface (18) and an inner surface (20) for receiving the tube (12, 14). A cylindrical swaging ring (22) having a taper...
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WO/1993/007417A1 |
A coupling ring (10) for circular ducts (30, 31) is formed of a single piece of sheet metal and has oppositely extending flanges (46, 47) connected together by an annular channel-shaped rib (12) which cooperatively with the flanges (46, ...
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WO/1993/007411A1 |
A sealing and joining arrangement (49) suitable for use in conjunction with a valve (28) used for delivering a blast of compressed air from a reservoir (20) to a blow-tube (34) of a dust-collector baghouse (39). The arrangement comprises...
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WO/1993/006403A1 |
A bore tube for underground excavation from vertical shafts requires a cylindrical outer contour. Socket pipes with inwardly projecting socket area are not appropriate for this purpose. In order to take advantage of the remarkable joinin...
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WO/1993/004310A1 |
A conduit coupling device includes a tubular casing (13) with front (20) and rear (21) sections of reduced and enlarged diameters. A pair of relatively diametrically movable arcuate clamp members (26, 27) of channel shape with cross webs...
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WO/1993/002313A1 |
Pipe joints of the insertion socket type are widely used in drainage installations of stainless plate pipes, but not where internal overpressures may occur, because the pipe joints should then be secured against retraction. The pipes may...
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WO/1992/003681A1 |
A pipe coupling (100) including a coupling body (104) and a swage ring (102) for urging over the coupling body (104) in order to secure the pipes (122) together. The coupling body (104) includes a main sealing tooth (105) with an outboar...
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WO/1992/002752A1 |
A pipe coupling (1) for connecting together two plain-ended pipes in a fluid-tight manner comprises an outer tubular casing (10), an inner tubular casing (20) and a tubular sealing sleeve (30). The sealing sleeve (30) has two sets of inw...
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WO/1992/001886A1 |
An air flow conduit system (200) is presented for air flow communication between an air filter mechanism and an engine intake manifold. The conduit system comprises substantially rigid straight conduit members (205, 206) joined in fluid ...
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WO/1992/001186A1 |
A coupling for connecting a pipe (12) to a flanged component comprises an adaptor (50) having a cylindrical body (52) and an annular flange (54) on one end thereof. The latter is adapted to connect to the flanged component and is formed ...
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WO/1991/019925A1 |
A pipe restraining mechanism (51) for use in a pipe retainer gland (50) to secure the gland on a pipe such as PVC pipe and ductile iron pipe including a housing (52) forming a part of the retainer gland and having a pocket (61) therein o...
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WO/1991/018232A1 |
An internal expansion coupling member (12) for use in joining a pair of aligned tubular members (10) in end-to-end relationship. The coupling member (12) comprises an internal expansion coupling device consisting of a relatively rigid sh...
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WO/1991/015703A1 |
A muff component (1) having a muff (3) and a spigot (4) comprises a step (7) behind the spigot (4). The step (7) can constitute an abutment surface for a spacing collar (8) to be used with a pipe seal with a gliding sheath (not shown) to...
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WO/1991/014895A1 |
A pipe coupling (20) including a coupling body (26) and swage rings (22, 24) for urging over the coupling body (26) in order to secure the pipes (28, 30) together. The coupling body (26) includes a main sealing tooth (60) with an outboar...
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WO/1991/010858A1 |
Flexible coupling assembly for hoses having a sleeve (1) for receiving two hose ends to be coupled and having assembly means for co-operating with complementary assembly means carried by the hose ends, characterized in that the sleeve (1...
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WO/1991/003674A1 |
This invention relates to a seal ring for a sleeve joint, which besides sealing also locks the sleeve (3) and an insert end (4) together in the longitudinal direction of the pipes. An axial locking is needed especially in connection with...
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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/1991/000974A1 |
The invention relates to a pipe connection for advance working pipes which are laid underground by an advance working technique and which have an inner cast iron pipe on which the compressive force is exerted during advance working. Each...
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WO/1990/012238A1 |
An internal expansion coupling (12) for fitting within and joining together two tubular members or pipes (T) in end-to-end relationship. The coupling (12) includes a sheet-like member (12) with overlapping ends (14, 14'). The sheet-like ...
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WO/1990/010171A1 |
A pipe joint, which can be used (a) to repair a break or other damage to a pipe or (b) to provide for expansion and contraction of the pipe, thereby compensating for earth movements and temperature changes, comprises an outer sleeve (11)...
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WO/1990/002902A1 |
A device and a method of providing a tensile-stress resistant as well as fluid-tight joint (5) between two components (2, 4) of the kind which are designed to be inserted one into the other, by applying an elastic material (6) on at leas...
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WO/1990/001655A1 |
A clamp (24) suitable for joining a pair of tubular members such as truck exhaust pipes (200, 202) including a metal band (26) having a reinforcing bar (28) at each end (36, 38) wrapped more than one turn, each wrapped reinforced end for...
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WO/1989/010476A1 |
An air flow conduit system is presented for air flow communication between an air filter mechanism (111) and an engine intake manifold (112). The conduit system comprises first (115), second (116) and third (117) substantially rigid cond...
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WO/1989/006331A1 |
A pipe joint consists of a sleeve (2) surrounding a socket chamber (3) for receiving a spigot (5). A gland (9) extends into the socket chamber (3) against a heel portion (12) of a sealing ring (7). Axial movement of the gland (9) forces ...
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WO/1989/002050A1 |
Root repelling pipe joints are used to prevent intrusion of root into underground pipelines. The joints comprise an annular member formed of an organic polymer mixed with an effective amount of a dinitroaniline. The dinitroaniline slowly...
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WO/1988/008784A1 |
The invention relates to a tube (1) having solid transverse ribs (3) at the outside and a smooth inner surface in which at least one end has a smooth outer surface (4) having a wall thickness which may be chosen free, i.e. greater than, ...
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WO/1988/004006A1 |
A band clamp for pipe joints comprises a band (10) which has confronting end flanges (14, 16) when wrapped around the pipes (6, 8). A clamping mechanism (20) is provided for pulling the end flanges (14, 16) together and stretching the ba...
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WO/1987/006322A1 |
A coupling for forming a sealed engagement with a tubular member, the coupling comprising an annular housing (14) having an engagement zone (16) for receiving a tubular member (12) to be engaged by the coupling, and comprising an engagem...
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WO/1987/005678A1 |
A clamp (10) for forming a seal on a pipeline section, the clamp comprising a pair of complementary clamp members (12) to be clamped together, each clamp member having an inner surface with a pair of axially spaced, circumferentially ext...
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WO/1987/004767A1 |
A liquid tight connector for affixing, in a liquid tight manner, to a conduit having a ridge located adjacent to its end, wherein the conduit extends into a bore (5) and abuts against a sealing means (6) and is held in liquid tight engag...
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WO/1986/007125A1 |
The specially shaped flat-ring gasket (1) for use with propulsion-type pipes. The gasket (1) comprises an annular cylindrically-shaped flat-ring gasket (1) made of an elastomeric material. Plurality of spaced-apart circumferential bulges...
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WO/1986/006145A1 |
A pipe lap joint (10) with an improved sealing zone (22) structure in the overlap region of the pipe. Thus sealing zone (22) comprises a pair of end-to-end intersecting slots (24) which are covered by a clamping band (16) and which allow...
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WO/1986/005856A1 |
A pipe coupling (10) for improved pull-apart strength of pipe lap joints. A clamping band (24) is applied to the outside pipe (14) around the overlap region (18) of the pipes (12, 14). An attachment (26) is applied around the inside pipe...
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WO/1986/004659A1 |
A heat shrinkable polymer material is particularly adapted for implanted biomedical use. A polycrystalline polymer is irradiated to produce crosslinking of its intramolecular structure to thereby impart viscoelasticity. The material is b...
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WO/1985/004462A1 |
A sealing ring with a slot (7) directed towards the inside of the joint in an outer fitting part (8) and an inner sealing lip (9) adjacent to the peak end to be inserted (2) is provided with a retaining area (5) directed towards the outs...
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WO/1985/003338A1 |
Cuff for sealing joints of pipes, adhering inside at the two ends of pipes by a plurality of annular bridges formed in one piece with the rest of the cuff made of an elastic material and pushed outwardly by tensioning rings on its inner ...
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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/1985/000211A1 |
A gasket for sealing the gap between two approximately parallel sealing surfaces which are displaced axially relative to each other during the assembly, during which the gasket follows one of the sealing surfaces and is compressed betwee...
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WO/1984/001807A1 |
A pipe joint seal comprises an insert (10) adapted to be mounted around the joint and the pipe sections adjacent thereto and having in its inner side dovetailed grooves (11) or the like which are filled with a plastic sealing compound. T...
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WO/1984/001420A1 |
An improved split body clamping or pressure containment device where the body members (10, 12) are retained together through the use of a plurality of double ended links (30a-h, 31a-h). The ends of each of the links (30a-h, 31a-h) are ju...
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WO/1984/000203A1 |
The connecting piece comprises a smooth sleeve and annular clamping elements. The pipe sleeve (1) is provided with a radial or wedge-shaped slot (6) and with at least two clamping rings (2) having each a U-shaped clamping eye (3) of whic...
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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/1983/003883A1 |
A multi-purpose metal-to-metal seal system providing fluid-tight integrity at the area of contact between the seal element (10) and the surface (18) against which it bears, throughout wide variations in pressure and temperature, and espe...
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WO/1982/001926A1 |
Coupling for mine ventilation conduits (10), (12), (70), (72) comprising a first tubular ventilation conduit having a flared end portion (14), (74) for receiving an end portion of a second tubular ventilation conduit, a resilient compres...
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WO/1982/000698A1 |
Arrangement permitting sterilization during engagement of two coupling components. One coupling component comprises a coupling element (1) and the other a coupling housing (2) capable of connection thereto. The arrangement in accordance ...
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WO/1981/003535A1 |
A sealing ring of an elastic material is adapted to be applied under expansion thereof to the spigot end of a pipe and consists of a solid main member (1), which is connected to a sealing member (5) through a thin flap (6). The main memb...
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WO/1981/003214A1 |
A sealing ring of an elastic material is adapted to be applied to the spigot end of a pipe under expansion of the diameter of the ring. To obtain a particularly effective seal without any risk of overloading of the elastic material, neit...
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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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