EP1080324A1 - Device for connecting two tubular elements - Google Patents

Device for connecting two tubular elements

Info

Publication number
EP1080324A1
EP1080324A1 EP99920899A EP99920899A EP1080324A1 EP 1080324 A1 EP1080324 A1 EP 1080324A1 EP 99920899 A EP99920899 A EP 99920899A EP 99920899 A EP99920899 A EP 99920899A EP 1080324 A1 EP1080324 A1 EP 1080324A1
Authority
EP
European Patent Office
Prior art keywords
semi
tubular elements
toric
elements according
tubular
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP99920899A
Other languages
German (de)
French (fr)
Inventor
Paul Garat
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Qualetude SA
Original Assignee
Qualetude SA
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from FR9806416A external-priority patent/FR2778963B1/en
Application filed by Qualetude SA filed Critical Qualetude SA
Publication of EP1080324A1 publication Critical patent/EP1080324A1/en
Withdrawn legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L21/00—Joints with sleeve or socket
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L37/00—Couplings of the quick-acting type
    • F16L37/02—Couplings of the quick-acting type in which the connection is maintained only by friction of the parts being joined
    • F16L37/04—Couplings of the quick-acting type in which the connection is maintained only by friction of the parts being joined with an elastic outer part pressing against an inner part by reason of its elasticity
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L37/00—Couplings of the quick-acting type
    • F16L37/08—Couplings of the quick-acting type in which the connection between abutting or axially overlapping ends is maintained by locking members
    • F16L37/084—Couplings of the quick-acting type in which the connection between abutting or axially overlapping ends is maintained by locking members combined with automatic locking
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S285/00—Pipe joints or couplings
    • Y10S285/903—Corrugated
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S285/00—Pipe joints or couplings
    • Y10S285/921—Snap-fit

Definitions

  • the present invention relates to the connection of tubular elements and the connection of a tubular element with an accessory.
  • the field of the invention includes tubes for the circulation of gaseous or liquid fluids, pulverulent materials, and more generally all uses of metal or even plastic tubes and conduits.
  • Some solutions use connecting parts such as necklaces or rings. They have the drawback of requiring installation, mounting and maintenance operations. In addition, the risk of unexpected dismantling cannot be completely ruled out.
  • the upper element comprises, facing the lower element A and going outward from a cylindrical part, a frustoconical rib diverging upwards and surrounded by a circular groove , said groove having a disengaging cross section and an elastically deformable external skirt
  • the lower element comprises, facing the upper element and going outwards, from a cylindrical part, a frustoconical bowl flaring upwards able to receive the rib of the upper element and bordered by a skirt external frustoconical diverging downwards, said external skirt forming, with the wall of the bowl, a circular rib, and being capable of coming elastically into contact against the internal face of the external skirt of the upper element, in the groove of this element, and that the lower edge of the outer skirt of the upper element A comprises retaining means snapping under the edge of the outer skirt of the lower element B.
  • This device has certain drawbacks. On the one hand, the manufacture of such devices is relatively expensive. On the other hand, the connection and disassembly of such devices is not always easy.
  • the invention aims to remedy these drawbacks by providing a reliable device, easy to use and low cost of implementation.
  • the goal is to make a quick and tight connection.
  • the invention relates in its most general sense to a device for the connection of two tubular elements, composed of two complementary parts extending the ends of said tubular elements, characterized in that the two complementary parts each consist of a flare substantially rigid conical, extended by a semi-circular rim, the semi-toric crowns being nestable.
  • the frustoconical flares are divergent in the direction of the connection plane.
  • the semi-toric crowns have a closed section over approximately 180 °.
  • the semi-toric crowns have external extensions extending substantially perpendicular to the connection plane of the two tubular elements.
  • one of the semi-circular edges has a deformation for housing a semi-O-ring.
  • the section of the outer semi-toric crown present at rest a radius of curvature slightly less than the section of the inner semi-toric crown.
  • At least one of the conical flares has undulations.
  • the two conical flares have undulations.
  • the devices are fixed to the tubular elements by a connecting means such as fittings, collars, welding, bonding, rivets.
  • connection means consists of a substantially rigid conical flare, extended by a flange semi-toric.
  • the invention also relates to a method of manufacturing a connection device or a connectable element having a conical part extended by a semi-toric flange, characterized in that the end of a tubular element is deformed.
  • the device for the connection of two tubular elements according to the invention is characterized in that it further comprises a ring for locking the nested semi-toric flanges.
  • the outer semi-toric flange is extended by a circumferential rib in which said locking rod is capable of being put in place for locking the assembly.
  • the interior semi-toric rim has a semi-annular border.
  • the semi-toric outer rim has radial slots to delimit flexible legs.
  • At least one of the tubular elements has a ring exterior to facilitate welding of an additional part.
  • At least one of the parts is formed by a plurality of overlapping strips.
  • At least one of the parts has a corrugated zone between the tubular element and the toric flare.
  • the corrugated zone has a succession of corrugations oriented axially and offset axially.
  • the corrugated zone has a succession of corrugations oriented transversely and offset axially.
  • the corrugated area is protected by a conical casing.
  • a cushion for vibration damping is placed on the connection zone.
  • This pad can be made of pressed wire.
  • FIG. 1 represents a view in partial section of a device according to the invention
  • FIG. 3 shows a sectional view of a first alternative embodiment
  • - Figure 4 shows a sectional view of a second alternative embodiment
  • Figures 5 and 6 show a view, respectively in detail and in section, of a third assembly variant
  • - Figures 7 and 8 show detailed views of other alternative embodiments of semi-toric flange assembly
  • FIG. 9 represents a sectional view of an alternative embodiment with a wavy deformable sector
  • Figures 10 and 11 show a view, respectively in detail and in section, of an alternative assembly with corrugated deformable sector
  • Figures 12 and 13 show two alternative embodiments comprising a protective casing.
  • Figure 1 shows a partial sectional view of a connection device according to the invention.
  • the device allows the connection of a first tubular element (1) with a second tubular element (2).
  • the tubular element (1) is extended by a flared conical skirt (3), opening towards the connection plane (10).
  • the angle formed by the wall of the conical skirt (3) relative to the connection plane (10) is approximately 20 °.
  • tubular element (2) is extended by a flared conical skirt (4), opening towards the connection plane (10).
  • the angle formed by the wall of the conical skirt (4) with respect to the connection plane (10) is approximately 20 °
  • the two conical skirts (3, 4) open towards each other to delimit a lenticular hollow space.
  • These skirts are extended by semitone rims (5, 6) which can fit into each other.
  • These semi-toric flanges (5, 6) have a section in the form of a semicircle, extending over approximately 180 °. They are extended by lips (7, 8) orienting themselves roughly perpendicular to the connection plane (10).
  • the outer lip (8) is slightly more flared than the inner lip (7) so as not to hinder the introduction of the semi-toric rim (5) into the external semi-toric rim (6).
  • the lip (7) extending the inner rim (5) is preferably split.
  • the outer flange (6) has a rib (9) in which a seal can be incorporated.
  • connection device is made of a rigid material which is elastically deformable, for example steel. It can be produced by deformation of the end of the two tubes to be connected. It can also be produced by assembling two independent elements on the ends of the tubes.
  • connection devices are opposite. This ensures manual pressure of the element provided with the inner rim (5) against the element provided with the outer rim (6). This pressure can also be exerted using a suitable mechanism.
  • the inner semi-toric ledge (5) then fits into the external semi-toric ledge (6) due to the elasticity of materials.
  • Disassembly can be carried out by inserting between the lips (7, 8) a simple wire of suitable section so as to separate the two lips from one another, and to separate the connection device.
  • the shape of the outer lip (8) is determined to facilitate the engagement of the inner rim
  • FIGS 3 and 4 show two examples of an alternative embodiment.
  • connection device has a flexibility making it possible to absorb alignment or positioning faults, and also to absorb displacements relative to the elements.
  • the side of one of the conical flares (3) for the version shown in Figure 3, or the sides of the two conical flares (3, 4) for the version shown in Figure 4, have undulations (11, 12).
  • the depth of the undulations is in the example described with reference to FIGS. 3 and 4 constant. According to another embodiment, it can be variable to adapt the flexibility.
  • the flares (3, 4) may according to yet another variant have a smooth conical zone and a wavy zone.
  • a particular embodiment consists in providing on the exterior surface a metal braid welded or held by a crown or the like. This braid protects the ripples against mechanical degradation or absorbs the effects of the bottom due to internal pressure.
  • Figures 5 and 6 show a view, respectively in detail and in section, of a third assembly variant.
  • (1) has, as in the previous variants, a first convex semi-toric zone (5), enveloping the convex semi-toric rim (6) extending the conical skirt (4) of the second tubular element (2).
  • the convex semi-toric zone (5) is then extended by a concave semi-toric rim (50) forming a peripheral rib in which is housed a rod (51) ensuring the locking of the assembly.
  • the convex semi-toric zone (5) and / or the concave semi-toric rim (50) have radial slots to define flexible tabs facilitating the passage of the internal semitoric rim (6).
  • the tubular element (1), and possibly the tubular element (2), have an outer ring (52, 53) facilitating the connection of an additional part using a weld bead (54).
  • the weld bead (54) connects the front surface of the ring (54) and the lateral surface of the complementary part.
  • FIG. 7 and 8 show detailed views of other alternative embodiments of semi-toric flange assembly.
  • FIG. 9 represents a sectional view of such an alternative embodiment with a disassembled corrugated deformable sector.
  • the tubular element (1, 2) is connected to the connection zone by means of a bellows skirt (55, 56) having a plurality of corrugations (57 to 62) oriented axially, and offset according to an envelope conical.
  • the connecting element is produced, according to the variant illustrated in FIG. 8, by a superposition of metal strips.
  • Figures 10 and 11 show a view, respectively in detail and in section, of an alternative assembly with corrugated deformable sector.
  • the undulations (70 to 74) are parallel to the longitudinal axis, which facilitates angular displacements.
  • Figures 12 and 13 show two alternative embodiments comprising a protective casing (80).
  • This casing (80) is a conical piece which covers the corrugated area to protect it and to avoid the introduction of materials capable of reducing the flexibility of this area.
  • This conical piece can come to cover one or the other side of the assembly, or both sides.
  • Figures 14 and 15 show a sectional view of an alternative assembly incorporating a bearing
  • the pad (82) axi-symmetrical able to absorb vibrations.
  • the pad (82) is formed of a network of pressed fibers, with a density of a few grams per cm3.
  • the pad (82) is wedged between the skirts (1) and (2).
  • Figures 14 and 15 show that the skirts can be flat or wave parallel to the axis of the system or perpendicular to this same axis, and that they can be protected or not by housings (3) and (4).
  • Figures 16 and 17 show views comparable to 14 and 15, except for the pads which are trapped under the semi-toric edges of the junctions.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Quick-Acting Or Multi-Walled Pipe Joints (AREA)
  • Mutual Connection Of Rods And Tubes (AREA)

Abstract

The invention concerns a device for connecting two tubular elements (1, 2), consisting of two matching portions extending said tubular element ends, the two matching portions (3, 4) each consisting of a substantially rigid conical flare, extended by a semi-toric rim (5, 6), the semi-toric rings capable of being interlocked.

Description

DISPOSITIF POUR LE RACCORDEMENT DE DEUX ELEMENTS TUBULAIRES DEVICE FOR CONNECTING TWO TUBULAR ELEMENTS
La présente invention concerne le raccordement d'éléments tubulaires et le raccordement d'un élément tubulaire avec un accessoire. Le domaine de l'invention comprend les tubes pour la circulation de fluides gazeux ou liquides, de matières pulvérulentes, et plus généralement toutes les utilisations de tubes et conduits métalliques voire plastiques.The present invention relates to the connection of tubular elements and the connection of a tubular element with an accessory. The field of the invention includes tubes for the circulation of gaseous or liquid fluids, pulverulent materials, and more generally all uses of metal or even plastic tubes and conduits.
On connaît, dans l'état de la technique, diverses solutions pour le raccordement de deux tubes, ou le raccordement d'un tube avec un accessoire.Various solutions are known in the state of the art for connecting two tubes, or connecting a tube with an accessory.
Certaines solutions mettent en œuvre des pièces de raccordement telles que des colliers ou des bagues . Elles présentent 1 ' inconvénient de nécessiter des opérations de mise en place, de montage et de maintenance. De plus, le risque de démontage inopiné ne peut pas être totalement écarté .Some solutions use connecting parts such as necklaces or rings. They have the drawback of requiring installation, mounting and maintenance operations. In addition, the risk of unexpected dismantling cannot be completely ruled out.
D'autres solutions consistent à prévoir àOther solutions consist in providing for
1 ' extrémité des tubes des moyens complémentaires enclipsables . A titre d'exemple, on citera la demande de brevet français FR2754037 décrivant un dispositif de raccordement étanche de deux tubes métalliques bout a bout.1 end of the tubes of the snap-on complementary means. By way of example, mention will be made of French patent application FR2754037 describing a sealed connection device for two metal tubes end to end.
Dans ce dispositif, l'élément supérieur comporte, en vis-à-vis de l'élément inférieurs A et en allant vers l'extérieur à partir d'une partie cylindrique, une nervure tronconique divergeant vers le haut et entourée par une rainure circulaire, ladite rainure ayant une section transversale dégageante et une jupe externe déformable elastiquement, tandis que l'élément inférieur comporte, en vis-à-vis de l'élément supérieur et en allant vers l'extérieur, a partir d'une partie cylindrique, une cuvette tronconique allant en s ' évasant vers le haut apte a recevoir la nervure de l'élément supérieur et bordée par une jupe externe tronconique divergeant vers le bas, ladite jupe externe formant, avec la paroi de la cuvette, une nervure circulaire, et étant apte à venir elastiquement en contact contre la face interne de la jupe externe de l'élément supérieur, dans la rainure de cet élément, et que le bord inférieur de la jupe externe de l'élément supérieur A comporte des moyens de retenue s ' encliquetant sous le bord de la jupe externe de l'élément inférieur B.In this device, the upper element comprises, facing the lower element A and going outward from a cylindrical part, a frustoconical rib diverging upwards and surrounded by a circular groove , said groove having a disengaging cross section and an elastically deformable external skirt, while the lower element comprises, facing the upper element and going outwards, from a cylindrical part, a frustoconical bowl flaring upwards able to receive the rib of the upper element and bordered by a skirt external frustoconical diverging downwards, said external skirt forming, with the wall of the bowl, a circular rib, and being capable of coming elastically into contact against the internal face of the external skirt of the upper element, in the groove of this element, and that the lower edge of the outer skirt of the upper element A comprises retaining means snapping under the edge of the outer skirt of the lower element B.
Ce dispositif présente certains inconvénients. D'une part, la fabrication de tels dispositifs est relativement coûteuse. D'autre part, le raccordement et le démontage de tels dispositifs n'est pas toujours facile.This device has certain drawbacks. On the one hand, the manufacture of such devices is relatively expensive. On the other hand, the connection and disassembly of such devices is not always easy.
L ' invention a pour but de remédier à ces inconvénients en proposant un dispositif fiable, facile à utiliser et d'un faible coût de mise en œuvre. Le but est de réaliser une jonction rapide et étanche.The invention aims to remedy these drawbacks by providing a reliable device, easy to use and low cost of implementation. The goal is to make a quick and tight connection.
A cet effet, l'invention concerne dans son acception la plus générale un dispositif pour le raccordement de deux éléments tubulaires, composé de deux parties complémentaires prolongeant les extrémités desdits éléments tubulaires, caractérisé en ce que les deux parties complémentaires sont constituées chacunes par un évasement conique sensiblement rigide, prolongé par un rebord semitorique, les couronnes semi-toriques étant emboîtables. De préférence, les évasements tronconiques sont divergents en direction du plan de raccordement.To this end, the invention relates in its most general sense to a device for the connection of two tubular elements, composed of two complementary parts extending the ends of said tubular elements, characterized in that the two complementary parts each consist of a flare substantially rigid conical, extended by a semi-circular rim, the semi-toric crowns being nestable. Preferably, the frustoconical flares are divergent in the direction of the connection plane.
Avantageusement, les couronnes semi-toriques présentent une section fermée sur environ 180°.Advantageously, the semi-toric crowns have a closed section over approximately 180 °.
Selon un mode de réalisation préféré, les couronnes semi-toriques présentent des prolongements extérieurs s ' étendant sensiblement perpendiculairement au plan de raccordement des deux éléments tubulaires .According to a preferred embodiment, the semi-toric crowns have external extensions extending substantially perpendicular to the connection plane of the two tubular elements.
Selon une variante, l'un des rebords semitoriques présente une déformation pour le logement d'un joint semi-torique.According to a variant, one of the semi-circular edges has a deformation for housing a semi-O-ring.
Selon un mode de réalisation particulier, la section de la couronne semi-torique extérieure présente au repos un rayon de courbure légèrement inférieure à la section de la couronne semi-torique intérieure.According to a particular embodiment, the section of the outer semi-toric crown present at rest a radius of curvature slightly less than the section of the inner semi-toric crown.
Selon une variante avantageuse, l'un au moins des évasements coniques présente des ondulations. Selon une autre variante, les deux évasements coniques présentent des ondulations .According to an advantageous variant, at least one of the conical flares has undulations. According to another variant, the two conical flares have undulations.
Selon un mode de réalisation particulier, les dispositifs sont fixés sur les éléments tubulaires par un moyen de liaison tel que des raccords, des colliers, une soudure, un collage, des rivets.According to a particular embodiment, the devices are fixed to the tubular elements by a connecting means such as fittings, collars, welding, bonding, rivets.
L ' invention concerne également un élément tubulaire raccordable avec un élément complémentaire, du type présentant à l'une au moins des extrémités un moyen de raccordement caractérisé en ce que le moyen de raccordement est constitué par un évasement conique sensiblement rigide, prolongé par un rebord semi-torique.The invention also relates to a tubular element connectable with an additional element, of the type having at least one of the ends a connection means characterized in that the connection means consists of a substantially rigid conical flare, extended by a flange semi-toric.
L ' invention concerne encore un procédé de fabrication d'un dispositif de raccordement ou d'un élément raccordable présentant une partie conique prolongée par un rebord semi-torique caractérisé en ce que l'on déforme l'extrémité d'un élément tubulaire.The invention also relates to a method of manufacturing a connection device or a connectable element having a conical part extended by a semi-toric flange, characterized in that the end of a tubular element is deformed.
Selon un mode de réalisation particulier, le dispositif pour le raccordement de deux éléments tubulaires selon l'invention est caractérisé en ce qu'il comporte en outre un jonc de verrouillage des rebords semi-toriques emboîtés .According to a particular embodiment, the device for the connection of two tubular elements according to the invention is characterized in that it further comprises a ring for locking the nested semi-toric flanges.
Avantageusement, le rebord semi-torique extérieur est prolongé par une nervure circonférentielle dans laquelle ledit jonc de verrouillage est susceptible d'être mis en place pour le verrouillage de l'assemblage.Advantageously, the outer semi-toric flange is extended by a circumferential rib in which said locking rod is capable of being put in place for locking the assembly.
Selon un mode de réalisation particulier, le rebord semi-torique intérieur présente une bordure semiannulaire .According to a particular embodiment, the interior semi-toric rim has a semi-annular border.
De préférence, le rebord semi-torique extérieu présente des fentes radiales pour délimiter des pattes flexibles .Preferably, the semi-toric outer rim has radial slots to delimit flexible legs.
Selon un autre mode de réalisation particulier, l'un au moins des éléments tubulaires présente une bague extérieure pour faciliter la soudure d'une pièce complémentaire .According to another particular embodiment, at least one of the tubular elements has a ring exterior to facilitate welding of an additional part.
Selon une autre variante de réalisation, l'une au moins des parties est formées par une pluralité de feuillards superposés.According to another alternative embodiment, at least one of the parts is formed by a plurality of overlapping strips.
De préférence, l'une au moins des parties présentent une zone ondulée entre 1 ' élément tubulaire et 1 ' évasement torique .Preferably, at least one of the parts has a corrugated zone between the tubular element and the toric flare.
Selon une première variante, la zone ondulée présente une succession d'ondulations orientées axialement et décalées axialement.According to a first variant, the corrugated zone has a succession of corrugations oriented axially and offset axially.
Selon une deuxième variante, la zone ondulée présente une succession d'ondulations orientées transversalement et décalées axialement. Selon un autre mode de réalisation particulier, la zone ondulée est protégées par un carter de forme conique.According to a second variant, the corrugated zone has a succession of corrugations oriented transversely and offset axially. According to another particular embodiment, the corrugated area is protected by a conical casing.
Selon une autre variante, un coussinet pour 1 ' amortissement des vibrations est placé sur la zone de raccordement. Ce coussinet peut être réalisé en fil pressé.According to another variant, a cushion for vibration damping is placed on the connection zone. This pad can be made of pressed wire.
L ' invention sera mieux comprise à la lecture de la description qui suit faisant référence aux dessins annexés où : la figure 1 représente une vue en coupe partielle d'un dispositif selon l'invention ;The invention will be better understood on reading the description which follows, referring to the accompanying drawings in which: FIG. 1 represents a view in partial section of a device according to the invention;
- la figure 2 représente une vue agrandie de la zone de clipsage ;- Figure 2 shows an enlarged view of the clip area;
- la figure 3 représente une vue en coupe d'une première variante de réalisation ; - la figure 4 représente une vue en coupe d'une deuxième variante de réalisation ; les figures 5 et 6 représentent une vue, respectivement en détail et en coupe, d'une troisième variante d'assemblage ; - les figures 7 et 8 représentent des vues de détail d'autres variantes de réalisation d'assemblage à rebord semi-torique ; la figure 9 représente une vue en coupe d'une variante de réalisation à secteur déformable ondulé ; les figures 10 et 11 représentent une vue, respectivement en détail et en coupe, d'une variante d'assemblage à secteur déformable ondulé ; les figures 12 et 13 représentent deux variantes de réalisation comportant un carter de protection.- Figure 3 shows a sectional view of a first alternative embodiment; - Figure 4 shows a sectional view of a second alternative embodiment; Figures 5 and 6 show a view, respectively in detail and in section, of a third assembly variant; - Figures 7 and 8 show detailed views of other alternative embodiments of semi-toric flange assembly; FIG. 9 represents a sectional view of an alternative embodiment with a wavy deformable sector; Figures 10 and 11 show a view, respectively in detail and in section, of an alternative assembly with corrugated deformable sector; Figures 12 and 13 show two alternative embodiments comprising a protective casing.
La figure 1 représente une vue en coupe partielle d'un dispositif de raccordement selon l'invention. Le dispositif permet le raccordement d'un premier élément tubulaire (1) avec un deuxième élément tubulaire (2) .Figure 1 shows a partial sectional view of a connection device according to the invention. The device allows the connection of a first tubular element (1) with a second tubular element (2).
L'élément tubulaire (1) est prolongé par une jupe conique (3) évasée, s ' ouvrant vers le plan de raccordement (10). L'angle formé par la paroi de la jupe conique (3) par rapport au plan de raccordement (10) est d'environ 20°.The tubular element (1) is extended by a flared conical skirt (3), opening towards the connection plane (10). The angle formed by the wall of the conical skirt (3) relative to the connection plane (10) is approximately 20 °.
De la même façon, l'élément tubulaire (2) est prolongé par une jupe conique (4) évasée, s ' ouvrant vers le plan de raccordement (10). L'angle formée par la paroi de la jupe conique (4) par rapport au plan de raccordement (10) est d'environ 20°Similarly, the tubular element (2) is extended by a flared conical skirt (4), opening towards the connection plane (10). The angle formed by the wall of the conical skirt (4) with respect to the connection plane (10) is approximately 20 °
Les deux jupes coniques (3, 4) s'ouvrent l'une vers l'autre pour délimiter un espace creux lenticulaire.The two conical skirts (3, 4) open towards each other to delimit a lenticular hollow space.
Ces jupes sont prolongées par des rebords semitoriques (5, 6) pouvant s'emboîter l'un dans l'autre. Ces rebords semi-toriques (5, 6) présentent une section en forme de demi-cercle, s ' étendant sur environ 180°. Ils sont prolongés par des lèvres (7, 8) s ' orientant à peu près perpendiculairement au plan de raccordement (10) . La lèvre extérieure (8) est légèrement plus évasée que la lèvre intérieure (7) afin de ne pas gêner l'introduction du rebord semi-torique (5) dans le rebord semi-torique extérieur (6).These skirts are extended by semitone rims (5, 6) which can fit into each other. These semi-toric flanges (5, 6) have a section in the form of a semicircle, extending over approximately 180 °. They are extended by lips (7, 8) orienting themselves roughly perpendicular to the connection plane (10). The outer lip (8) is slightly more flared than the inner lip (7) so as not to hinder the introduction of the semi-toric rim (5) into the external semi-toric rim (6).
La lèvre (7) prolongeant le rebord intérieur (5) est préférentiellement fendue. Le rayon de courbure moyen du rebord extérieurThe lip (7) extending the inner rim (5) is preferably split. The mean radius of curvature of the outer edge
(6) est, au repos, légèrement inférieur au rayon de courbure moyen du rebord intérieur (5) au repos, afin de créer une légère contrainte mécanique renforçant la liaison après raccordement des tuyaux.(6) is, at rest, slightly less than the average radius of curvature of the inner rim (5) at rest, in order to create a slight mechanical stress strengthening the connection after connecting the pipes.
L'un des rebords semi-torique, en 1 ' occurence le rebord extérieur (6) présente une nervure (9) dans lequel peut être incorporé un joint.One of the semi-toric flanges, in one instance the outer flange (6) has a rib (9) in which a seal can be incorporated.
Le dispositif de raccordement est réalisé en un matériau rigide déformable elastiquement, par exemple de lé acier. Il peut être réalisé par déformation de l'extrémité des deux tubes à raccorder. II peut également être réalisé par assemblage de deux éléments indépendants sur les extrémités des tubes .The connection device is made of a rigid material which is elastically deformable, for example steel. It can be produced by deformation of the end of the two tubes to be connected. It can also be produced by assembling two independent elements on the ends of the tubes.
Pour raccorder deux tubes, il suffit de les disposer dans le prolongement l'un de l'autre. Les dispositifs de raccordement sont en vis-à-vis. On assure alors une pression manuelle de l'élément muni du rebord intérieur (5) contre l'élément muni du rebord extérieur (6). On peut également exercer cette pression à l'aide d'un mécanisme adapté.To connect two tubes, simply arrange them in line with each other. The connection devices are opposite. This ensures manual pressure of the element provided with the inner rim (5) against the element provided with the outer rim (6). This pressure can also be exerted using a suitable mechanism.
Le rebord semi-torique intérieur (5) vient alors s'emboîter dans le rebord semi-torique extérieur (6) du fait de l'élasticité de matériaux.The inner semi-toric ledge (5) then fits into the external semi-toric ledge (6) due to the elasticity of materials.
Le démontage peut s'effectuer en insérant entre les lèvres (7, 8) un simple fil de section adaptée de sorte à écarter les deux lèvres l'une par rapport à l'autre, et à désolidariser le dispositif de raccordement.Disassembly can be carried out by inserting between the lips (7, 8) a simple wire of suitable section so as to separate the two lips from one another, and to separate the connection device.
Le resserrement et 1 ' écartement des lèvres sont facilités par la présence de fentes sur l'une ou l'autre des lèvres (7, 8), ou sur les deux lèvres.The tightening and spacing of the lips are facilitated by the presence of slots on one or the other of the lips (7, 8), or on both lips.
La forme de la lèvre extérieure (8) est déterminée pour faciliter l'engagement du rebord intérieurThe shape of the outer lip (8) is determined to facilitate the engagement of the inner rim
(5). Le fait que le rebord extérieur (6) présente un rayon de courbure légèrement moindre assure un blocage efficace de(5). The fact that the outer rim (6) has a slightly smaller radius of curvature ensures effective blocking of
1 'assemblage.1 assembly.
Les figures 3 et 4 présentent deux exemples d'une variante de réalisation.Figures 3 and 4 show two examples of an alternative embodiment.
Selon cette variante, le dispositif de raccordement présente une flexibilité permettant d'absorber des défauts d'alignement ou de positionnement, et aussi d'absorber des déplacements relatifs aux éléments.According to this variant, the connection device has a flexibility making it possible to absorb alignment or positioning faults, and also to absorb displacements relative to the elements.
Le flanc de l'un des évasements coniques (3) pour la version représentée en figure 3, ou les flancs des deux évasements coniques (3, 4) pour la version représentée en figure 4, présentent des ondulations (11, 12).The side of one of the conical flares (3) for the version shown in Figure 3, or the sides of the two conical flares (3, 4) for the version shown in Figure 4, have undulations (11, 12).
Ces ondulations sont formées par des segments annulaires (13) orientés sensiblement dans des plans transversaux, raccordés par des segments toriques alternativement concaves (14) ou convexes (15) .These undulations are formed by annular segments (13) oriented substantially in transverse planes, connected by alternately concave (14) or convex (15) toric segments.
La profondeur des ondulations est dans l'exemple décrit en référence aux figures 3 et 4 constante. Elle peut selon un autre exemple de réalisation être variable pour adapter la flexibilité. Les évasements (3, 4) peuvent selon une autre variante encore présenter une zone conique lisse et une zone ondulée.The depth of the undulations is in the example described with reference to FIGS. 3 and 4 constant. According to another embodiment, it can be variable to adapt the flexibility. The flares (3, 4) may according to yet another variant have a smooth conical zone and a wavy zone.
Un exemple de réalisation particulier consiste à prévoir à la surface extérieure une tresse métallique soudée ou maintenue par une couronne ou un moyen analogue . Cette tresse protège les ondulations contre les dégradations mécaniques ou absorbe les effets du fond due à une pression interne .A particular embodiment consists in providing on the exterior surface a metal braid welded or held by a crown or the like. This braid protects the ripples against mechanical degradation or absorbs the effects of the bottom due to internal pressure.
Les figures 5 et 6 représentent une vue, respectivement en détail et en coupe, d'une troisième variante d'assemblage.Figures 5 and 6 show a view, respectively in detail and in section, of a third assembly variant.
La jupe conique (3) du premier élément tubulaireThe conical skirt (3) of the first tubular element
(1) présente comme dans les variantes précédentes une première zone semi-torique (5) convexe, enveloppant le rebord semi-torique convexe (6) prolongeant la jupe conique (4) du deuxième élément tubulaire (2).(1) has, as in the previous variants, a first convex semi-toric zone (5), enveloping the convex semi-toric rim (6) extending the conical skirt (4) of the second tubular element (2).
La zone semi-torique convexe (5) est ensuite prolongée par un rebord semi-torique concave (50) formant une nervure périphérique dans laquelle vient se loger un jonc (51) assurant le verrouillage de l'assemblage. La zone semi-torique convexe (5) et/ou le rebord semi-torique concave (50) présentent des fentes radiales pour définir des pattes flexibles facilitant le passage du rebord semitorique intérieur (6) . L'élément tubulaire (1), et éventuellement l'élément tubulaire (2), présentent une bague extérieure (52, 53) facilitant le raccordement d'une pièce complémentaire à l'aide d'un cordon de soudure (54). Le cordon de soudure (54) vient relier la surface frontale de la bague (54) et la surface latérale de la pièce complémentaire .The convex semi-toric zone (5) is then extended by a concave semi-toric rim (50) forming a peripheral rib in which is housed a rod (51) ensuring the locking of the assembly. The convex semi-toric zone (5) and / or the concave semi-toric rim (50) have radial slots to define flexible tabs facilitating the passage of the internal semitoric rim (6). The tubular element (1), and possibly the tubular element (2), have an outer ring (52, 53) facilitating the connection of an additional part using a weld bead (54). The weld bead (54) connects the front surface of the ring (54) and the lateral surface of the complementary part.
Les figures 7 et 8 représentent des vues de détail d'autres variantes de réalisation d'assemblage à rebord semi-torique. La figure 9 représente une vue en coupe d'une telle variante de réalisation à secteur déformable ondulé désassemblé.Figures 7 and 8 show detailed views of other alternative embodiments of semi-toric flange assembly. FIG. 9 represents a sectional view of such an alternative embodiment with a disassembled corrugated deformable sector.
L'élément tubulaire (1, 2) est relié à la zone de raccordement par l'intermédiaire d'une jupe à soufflet (55, 56) présentant une pluralité d'ondulations (57 à 62) orientées axialement, et décalées selon une enveloppe conique.The tubular element (1, 2) is connected to the connection zone by means of a bellows skirt (55, 56) having a plurality of corrugations (57 to 62) oriented axially, and offset according to an envelope conical.
L'élément de raccordement est réalisé, selon la variante illustrée par la figure 8, par une superposition de feuillards métalliques.The connecting element is produced, according to the variant illustrated in FIG. 8, by a superposition of metal strips.
Les figures 10 et 11 représentent une vue, respectivement en détail et en coupe, d'une variante d'assemblage à secteur déformable ondulé.Figures 10 and 11 show a view, respectively in detail and in section, of an alternative assembly with corrugated deformable sector.
Selon cet exemple, les ondulations (70 à 74) sont parallèles à l'axe longitudinal, ce qui facilite des déplacements angulaires .According to this example, the undulations (70 to 74) are parallel to the longitudinal axis, which facilitates angular displacements.
Les figures 12 et 13 représentent deux variantes de réalisation comportant un carter de protection (80) . Ce carter (80) est une pièce conique venant recouvrir la zone ondulée pour la protéger et pour éviter l'introduction de matériaux susceptibles de réduire la souplesse de cette zone. Cette pièce conique peut venir recouvrir l'un ou l'autre côté de l'ensemble, ou les 2 côtés.Figures 12 and 13 show two alternative embodiments comprising a protective casing (80). This casing (80) is a conical piece which covers the corrugated area to protect it and to avoid the introduction of materials capable of reducing the flexibility of this area. This conical piece can come to cover one or the other side of the assembly, or both sides.
Les figures 14 et 15 représentent une vue en coupe d'une variante d'assemblage intégrant un coussinetFigures 14 and 15 show a sectional view of an alternative assembly incorporating a bearing
(82) axi-symétrique apte à absorber des vibrations. Le coussinet (82) est formé d'un réseau de fibres pressées, d'une densité de quelques grammes par cm3. Le coussinet (82) est coincé entre les jupes (1) et (2). Les figures 14 et 15 montrent que les jupes peuvent être planes ou à ondes parallèles à l'axe du système ou perpendiculaires à ce même axe, et qu'elles peuvent être protégées ou non par des carters (3) et (4) .(82) axi-symmetrical able to absorb vibrations. The pad (82) is formed of a network of pressed fibers, with a density of a few grams per cm3. The pad (82) is wedged between the skirts (1) and (2). Figures 14 and 15 show that the skirts can be flat or wave parallel to the axis of the system or perpendicular to this same axis, and that they can be protected or not by housings (3) and (4).
Les figures 16 et 17 représentent des vues comparables à 14 et 15, hormis les coussinets qui sont prisonniers sous les rebords semi-toriques des jonctions. Figures 16 and 17 show views comparable to 14 and 15, except for the pads which are trapped under the semi-toric edges of the junctions.

Claims

REVENDICATIONS
1 - Dispositif pour le raccordement de deux éléments tubulaires, composé de deux parties complémentaires prolongeant les extrémités desdits éléments tubulaires, caractérisé en ce que les deux parties complémentaires sont constituées chacune par un évasement conique sensiblement rigide, prolongé par un rebord semi-torique, les couronnes semi-toriques étant emboîtables. 2 Dispositif pour le raccordement de deux éléments tubulaires selon la revendication 1 caractérisé en ce qu'il comporte en outre un jonc de verrouillage des rebords semi-toriques emboîtés.1 - Device for the connection of two tubular elements, composed of two complementary parts extending the ends of said tubular elements, characterized in that the two complementary parts each consist of a substantially rigid conical flare, extended by a semi-toric rim, the semi-toric crowns being interlocking. 2 Device for connecting two tubular elements according to claim 1 characterized in that it further comprises a locking ring of the semi-toric flanges fitted.
3 - Dispositif pour le -raccordement de deux éléments tubulaires selon la revendication 1 caractérisé en ce que le rebord semi-torique extérieur est prolongé par une nervure circonferentielle dans laquelle ledit jonc de verrouillage est susceptible d'être mis en place pour le verrouillage de l'assemblage. 4 - Dispositif pour le raccordement de deux éléments tubulaires selon la revendication 1 caractérisé en ce que que le rebord semi-torique intérieur présente une bordure semi-annulaire.3 - Device for -connection of two tubular elements according to claim 1 characterized in that the outer semi-toric flange is extended by a circumferential rib in which said locking ring is capable of being put in place for locking the 'assembly. 4 - Device for connecting two tubular elements according to claim 1 characterized in that the inner semi-toric flange has a semi-annular border.
5 - Dispositif pour le raccordement de deux éléments tubulaires selon la revendication 1 caractérisé en ce que l'un au moins des rebords semi-toriques présente des fentes radiales pour délimiter des pattes flexibles.5 - Device for connecting two tubular elements according to claim 1 characterized in that at least one of the semi-toric flanges has radial slots to delimit flexible tabs.
6 - Dispositif pour le raccordement de deux éléments tubulaires selon la revendication 1 caractérisé en ce que l'un au moins des éléments tubulaires présente une bague extérieure pour faciliter la soudure d'une pièce complémentaire .6 - Device for connecting two tubular elements according to claim 1 characterized in that at least one of the tubular elements has an outer ring to facilitate the welding of an additional part.
7 - Dispositif pour le raccordement de deux éléments tubulaires selon la revendication 1 caractérisé en ce que l'une au moins des parties est formée par une pluralité de feuillards superposés. 8 - Dispositif pour le raccordement de deux éléments tubulaires selon la revendication 1 caractérisé en ce que l'une au moins des parties présentent une zone ondulée entre l'élément tubulaire et 1 ' évasement torique. 9 - Dispositif pour le raccordement de deux éléments tubulaires selon la revendication 8 caractérisé en ce que la zone ondulée présente une succession d'ondulations orientées axialement et décalées axialement.7 - Device for connecting two tubular elements according to claim 1 characterized in that at least one of the parts is formed by a plurality of overlapping strips. 8 - Device for connecting two tubular elements according to claim 1 characterized in that at least one of the parts have a corrugated area between the tubular element and one toric flare. 9 - Device for connecting two tubular elements according to claim 8 characterized in that the corrugated area has a succession of corrugations oriented axially and offset axially.
10 - Dispositif pour le raccordement de deux éléments tubulaires selon la revendication 8 caractérisé en ce que la zone ondulée présente une succession d'ondulations orientées transversalement et décalées axialement.10 - Device for connecting two tubular elements according to claim 8 characterized in that the corrugated zone has a succession of corrugations oriented transversely and offset axially.
11 - Dispositif pour le raccordement de deux éléments tubulaires selon l'une au moins des revendications 8 à 10 caractérisé en ce que l'un au moins des évasements coniques est protégé par un carter de forme conique.11 - Device for connecting two tubular elements according to at least one of claims 8 to 10 characterized in that at least one of the conical flares is protected by a conical casing.
12 - Dispositif pour le raccordement de deux éléments tubulaires selon la revendication 1 caractérisé en ce qu'un coussinet amortisseur est couplé à l'un au moins des évasements coniques.12 - Device for the connection of two tubular elements according to claim 1 characterized in that a damping pad is coupled to at least one of the conical flares.
13 - Dispositif pour le raccordement de deux éléments tubulaires selon la revendication 1 caractérisé en ce que les évasements tronconiques sont divergents en direction du plan de raccordement. 14 - Dispositif pour le raccordement de deux éléments tubulaires selon l'une au moins des revendications 1 ou 13 caractérisé en ce que les couronnes semi-toriques présentent une section fermée sur environ 180°.13 - Device for connecting two tubular elements according to claim 1 characterized in that the frustoconical flares are divergent in the direction of the connection plane. 14 - Device for connecting two tubular elements according to at least one of claims 1 or 13 characterized in that the semi-toric crowns have a closed section over about 180 °.
15 - Dispositif pour le raccordement de deux éléments tubulaires selon la revendication 14 caractérisé en ce que les couronnes semi-toriques présentent des prolongements extérieurs s ' étendant sensiblement perpendiculairement au plan de raccordement des deux éléments tubulaires . 16 - Dispositif pour le raccordement de deux éléments tubulaires selon l'une au moins des revendications 13 à 15 caractérisé en ce que l'une des rebords semi- toriques présente une déformation pour le logement d'un joint semi-torique.15 - Device for connecting two tubular elements according to claim 14 characterized in that the semi-toric crowns have external extensions extending substantially perpendicular to the connection plane of the two tubular elements. 16 - Device for connecting two tubular elements according to at least one of claims 13 to 15 characterized in that one of the semi-flanges O-ring has a deformation for housing a semi-O-ring.
17 - Dispositif pour le raccordement de deux éléments tubulaires selon l'une au moins des revendications 13 à 16 caractérisé en ce que la section de la couronne semi-torique extérieure présente au repos un rayon de courbure légèrement inférieure à la section de la couronne semi-torique intérieure.17 - Device for the connection of two tubular elements according to at least one of claims 13 to 16 characterized in that the section of the outer semi-toric crown has at rest a radius of curvature slightly less than the section of the semi crown - internal toric.
18 - Dispositif pour le raccordement de deux éléments tubulaires selon l'une au moins des revendications18 - Device for connecting two tubular elements according to at least one of the claims
13 à 17 caractérisé en ce que l'un au moins des évasements coniques présente des ondulations .13 to 17 characterized in that at least one of the conical flares has undulations.
19 - Dispositif pour le raccordement de deux éléments tubulaires selon l'une au moins des 13 à 18 précédentes caractérisé en ce que les évasements coniques présentent des ondulations .19 - Device for the connection of two tubular elements according to at least one of the preceding 13 to 18 characterized in that the conical flares have undulations.
20 - Dispositif pour le raccordement de deux éléments tubulaires selon l'une au moins des revendications 13 à 19 caractérisé en ce qu'ils sont fixés sur les éléments tubulaires par un moyen de liaison tel que des raccords, des colliers, une soudure, un collage, des rivets, ou un sertissage.20 - Device for connecting two tubular elements according to at least one of claims 13 to 19 characterized in that they are fixed to the tubular elements by a connecting means such as fittings, collars, a weld, a bonding, rivets, or crimping.
21 - Dispositif pour le raccordement de deux éléments tubulaires selon l'une au moins des revendications 13 à 20 caractérisé en ce qu'il comporte une tresse extérieure .21 - Device for connecting two tubular elements according to at least one of claims 13 to 20 characterized in that it comprises an outer braid.
22 - Élément tubulaire raccordable avec un élément complémentaire, du type présentant à l'une au moins des extrémités un moyen de raccordement caractérisé en ce que le moyen de raccordement est constitué par un évasement conique sensiblement rigide, prolongé par un rebord semi- torique.22 - Tubular element connectable with a complementary element, of the type having at least one of the ends a connection means characterized in that the connection means consists of a substantially rigid conical flare, extended by a semi-torical flange.
23 - Élément tubulaire raccordable avec un élément complémentaire selon la revendication 22 caractérisé en ce que 1 ' évasement tronconique est divergent et se prolonge par un rebord semi-torique présente une section fermée sur environ 180°. 24 - Élément tubulaire raccordable avec un élément complémentaire selon la revendication 23 caractérisé en ce que la couronne semi-torique présente un prolongement extérieur s ' étendant sensiblement perpendiculairement au plan de raccordement .23 - tubular element connectable with a complementary element according to claim 22 characterized in that one frustoconical flare is divergent and is extended by a semi-toric flange has a closed section over about 180 °. 24 - tubular element connectable with a complementary element according to claim 23 characterized in that the semi-toric crown has an outer extension extending substantially perpendicular to the connection plane.
25 - Élément tubulaire raccordable avec un élément complémentaire selon 1 ' une au moins des revendications 20 à 24 caractérisé en ce que la couronne semi-torique présente une déformation pour le logement d'un joint semi-torique.25 - Tubular element connectable with a complementary element according to one at least of claims 20 to 24 characterized in that the semi-toric crown has a deformation for the housing of a semi-toric joint.
26 - Élément tubulaire raccordable avec un élément complémentaire selon l'une au moins des revendications 20 à 25 caractérisé en ce que l'un au moins des évasements coniques présente des ondulations . 27 - Élément tubulaire raccordable avec un élément complémentaire selon l'une au moins des revendications 20 à 26 caractérisé en ce qu'il comporte une tresse extérieure.26 - Tubular element connectable with a complementary element according to at least one of claims 20 to 25 characterized in that at least one of the conical flares has undulations. 27 - Tubular element connectable with a complementary element according to at least one of claims 20 to 26 characterized in that it comprises an outer braid.
28 - Procédé de fabrication d'un dispositif de raccordement ou d'un élément raccordable présentant une partie conique prolongée par un rebord semi-torique caractérisé en ce que l'on déforme l'extrémité d'un élément tubulaire .28 - Method of manufacturing a connection device or a connectable element having a conical part extended by a semi-toric flange characterized in that the end of a tubular element is deformed.
29 - Procédé de fabrication d'un dispositif de raccordement ou d'un élément raccordable présentant une partie conique prolongée par un rebord semi-torique selon la revendication 28, caractérisé en ce que l'on recouvre la surface extérieure d'une tresse. 29 - A method of manufacturing a connection device or a connectable element having a conical part extended by a semi-toric flange according to claim 28, characterized in that one covers the outer surface of a braid.
EP99920899A 1998-05-20 1999-05-20 Device for connecting two tubular elements Withdrawn EP1080324A1 (en)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
FR9806416A FR2778963B1 (en) 1998-05-20 1998-05-20 DEVICE FOR CONNECTING TWO TUBULAR ELEMENTS, CONNECTING TUBULAR ELEMENT AND MANUFACTURING METHOD
FR9806416 1998-05-20
FR9816429 1998-12-24
FR9816429A FR2778964B3 (en) 1998-05-20 1998-12-24 DEVICE FOR CONNECTING TWO TUBULAR ELEMENTS, CONNECTABLE TUBULAR ELEMENT AND MANUFACTURING METHOD
PCT/FR1999/001203 WO1999060299A1 (en) 1998-05-20 1999-05-20 Device for connecting two tubular elements

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EP1080324A1 true EP1080324A1 (en) 2001-03-07

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JP (1) JP2002515576A (en)
AU (1) AU3830499A (en)
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WO (1) WO1999060299A1 (en)

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Also Published As

Publication number Publication date
JP2002515576A (en) 2002-05-28
FR2778964A1 (en) 1999-11-26
WO1999060299A1 (en) 1999-11-25
FR2778964B3 (en) 2001-01-19
US6557901B1 (en) 2003-05-06
AU3830499A (en) 1999-12-06

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