WO1998053237A1 - Element profile allonge susceptible de changer de courbure et son procede de fabrication - Google Patents
Element profile allonge susceptible de changer de courbure et son procede de fabrication Download PDFInfo
- Publication number
- WO1998053237A1 WO1998053237A1 PCT/FR1998/000904 FR9800904W WO9853237A1 WO 1998053237 A1 WO1998053237 A1 WO 1998053237A1 FR 9800904 W FR9800904 W FR 9800904W WO 9853237 A1 WO9853237 A1 WO 9853237A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- elongated body
- fixing means
- profiled element
- groove
- composite material
- Prior art date
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
- F16L11/00—Hoses, i.e. flexible pipes
- F16L11/14—Hoses, i.e. flexible pipes made of rigid material, e.g. metal or hard plastics
- F16L11/16—Hoses, i.e. flexible pipes made of rigid material, e.g. metal or hard plastics wound from profiled strips or bands
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C53/00—Shaping by bending, folding, twisting, straightening or flattening; Apparatus therefor
- B29C53/02—Bending or folding
- B29C53/12—Bending or folding helically, e.g. for making springs
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C53/00—Shaping by bending, folding, twisting, straightening or flattening; Apparatus therefor
- B29C53/56—Winding and joining, e.g. winding spirally
- B29C53/58—Winding and joining, e.g. winding spirally helically
- B29C53/78—Winding and joining, e.g. winding spirally helically using profiled sheets or strips
- B29C53/785—Winding and joining, e.g. winding spirally helically using profiled sheets or strips with reinforcements
-
- 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
- F16L11/00—Hoses, i.e. flexible pipes
- F16L11/04—Hoses, i.e. flexible pipes made of rubber or flexible plastics
- F16L11/08—Hoses, i.e. flexible pipes made of rubber or flexible plastics with reinforcements embedded in the wall
- F16L11/081—Hoses, i.e. flexible pipes made of rubber or flexible plastics with reinforcements embedded in the wall comprising one or more layers of a helically wound cord or wire
- F16L11/083—Hoses, i.e. flexible pipes made of rubber or flexible plastics with reinforcements embedded in the wall comprising one or more layers of a helically wound cord or wire three or more layers
Definitions
- the present invention relates to an elongated profile of great length in composite and its manufacturing process, the profiled element having high mechanical characteristics in the longitudinal axis and being in particular capable of withstanding local stresses and / or abrasion.
- Such profiled elements find their application in particular in the manufacture of flexible pipes, or flexible pipe elements, by helical winding, these pipes having in particular characteristics of high resistance and qualities of lightness.
- the profiled elements used to manufacture flexible pipes include in the majority of cases, a support inside of which is placed a core. During manufacture and during their use, for example when such elements are used to form reinforcements formed by several plies, it is necessary that the profiled elements resist:
- the pipe can be formed of several layers of elements arranged one above the other.
- Certain methods consist in placing an anti-abrasion material on at least one surface of the profile to be protected, or in completely covering the profile after its manufacture. Such operations require an additional step which significantly increases the cost of manufacturing the profile.
- the abrasion-resistant material must have adhesion characteristics with respect to the profile, which restricts the choice of materials that can be used.
- Another way to do this is to use an adhesive to adhere the abrasion-resistant coating to the profile.
- the nature of the adhesive must be compatible both with the material constituting the profile and with the abrasion-resistant coating. This double constraint restricts the range of materials likely to be used and increases the cost of the elements.
- the use of an adhesive does not allow the desired degree of axial freedom of the core to be preserved relative to the support.
- the patent FR 2,494,401 describes different embodiments of a profiled element.
- a first way is to use a mold made of abrasion-resistant material and to fill it with a reinforced plastic material adhering to its internal wall, the nature of the material being chosen to ensure the retention of the core in the mold.
- Such a choice restricts the materials used for the mold, since it requires in particular the existence of compatibility between the materials used for the mold.
- the degree of axial freedom between the core and the support is nonexistent and bending forces induce cracks in the material forming the core.
- One way of ensuring a certain degree of axial freedom between the core and the support therefore consists in depositing petroleum jelly inside the support. In this way, a degree of axial freedom is maintained between the core and the support.
- the core tends to "wiggle", to come out of the support.
- composite material means a material which may comprise fibers, such as glass fibers, carbon fibers, aramid fibers, coated in a matrix, such as a thermosetting or crosslinkable matrix, or any other material which requires treatment to bring it into its final state.
- elongated body and “hollow elongated body” denote throughout the rest of the description the same element, for example a body, preferably resistant to abrasion due to the very nature of the material of which it is made and / or of the made of the geometric characteristics of this mold, for example its thickness, which make it possible to maintain sufficient resistance to abrasion.
- core refers to the stabilized composite material.
- the invention relates to an elongated profiled element of composite material, the element being capable of being bent, and capable, preferably, to resist abrasion, the profiled element comprising a hollow elongated body, a core of composite material stabilized inside the elongated body.
- the hollow elongated body comprises one or more mechanical fixing means which make it possible to hold the core of composite material inside the elongated body, while leaving the possibility of the core to move axially at the inside the elongated element.
- the elongated body may comprise at least one groove, and the mechanical fixing means may be located on at least one of the walls of this groove, for example the wall which forms the bottom of the groove and / or at least one of the side walls of the throat.
- These mechanical fixing means may include a part "i" on the side walls of said elongated body which is inserted, for example, into the core of composite material, the core having a width "n", the value of "i" is between 0.05n and 0.25n, for example, and preferably between 0.08n and
- the mechanical fixing means are, for example, formed by one or more elongated elements which extend over at least part of the length of one or more of the walls of the groove.
- the fixing means are formed by one or more elongated elements which extend over at least part of at least one of the walls of the groove, for example, grooves having a depth "r" .
- the ratio of the value of the depth of the groove to the thickness "e" of the groove is for example between 0.1 and 04.
- the mechanical fixing means can also be formed from one or more parts of the hollow elongated body, for example by a forming operation.
- the fixing means can also be in the form of a "T" having a width at the foot l j and a width at the top I2, the width I2 being, for example, less than 0.5n and the value of 1 ⁇ being such that (l2) / 3> 1 ⁇ > 0.1 n, where
- n is the width of the core of composite material.
- the mechanical fixing means can also be point elements such as hollows and / or studs distributed over at least part of the length of at least one of the walls.
- the ratio p / e is for example between 0.1 and 0.5.
- the present invention also relates to a manufacturing method making it possible to obtain a profiled element capable of changing curvature and capable of withstanding abrasion.
- a hollow elongated body adapted, preferably, to resist abrasion
- the elongated body comprising at least one mechanical fixing means and / or a means for forming a mechanical fixing means, the mechanical fixing means allowing an axial movement between the core and the elongated body, and
- the hollow elongated body lined with composite material is subjected for example to a treatment capable of passing it into its final state, this operation of treatment can be carried out before or after the manufacture of the element.
- the mechanical fixing means can be formed before or after the stage of final shaping of the composite material.
- the present invention is particularly applicable to the manufacture of a flexible pipe comprising at least one elongated profiled element according to the invention, and in particular to the manufacture of a flexible pipe used in the petroleum field.
- the profiled element having the characteristics set out above, as well as its manufacturing process have numerous advantages and solve several problems, and in particular the following: • the presence of mechanical fixing means or mechanical retention in place of the chemical means usually used, for example glues, keeps the core in place while leaving it a certain degree of axial freedom, that is to say allowing it to move or slide axial with respect to the elongated body forming the support, • in this way, it is possible to choose the materials for the supports in a much wider range than the range usually referred to in the prior art, • materials can therefore be used, the cost of which is lower than that of the materials usually used and / or the implementation of which is simpler.
- Figure 1 schematically illustrates a process for manufacturing a profiled element according to the invention
- Figure 2 shows schematically in section the characteristics of mechanical fastening means distributed over a part of a hollow elongated body coming into the nucleus filling the latter
- FIG. 3 shows an exemplary embodiment where the mechanical fixing means, such as grooves, extend over practically the entire length of the two walls of the groove and are inserted into the core,
- FIG. 4 shows schematically an example of mechanical fastening means which are in the form of hollow grooves extending over the walls of the groove
- FIGS. 5 and 6 represent a particular example of a mold comprising means for fixing or mechanical maintenance formed from a part of the wall of the hollow elongated body
- Figure 7 shows an alternative embodiment for which the mechanical fixing means are made by a T-shaped rail which is inserted into the core
- Figure 8 shows schematically an embodiment for which the mechanical fixing means are in the form of a hollow rail in the wall of the mold
- Figure 9 shows a flexible pipe according to the prior art provided with a resistance armature comprising mechanical attachment means.
- a hollow elongate body 1 is unwound, for example, from a coil 2 to be wound on a drum or mandrel 3. It passes, for example, between guide rollers 4 and tension rollers 5.
- the shaft of the mandrel 3 is connected to drive means such as those described in the aforementioned patent or any other means usually used to set the shaft in motion.
- the profiled element produced on the mandrel 3 firstly has a first radius of curvature RQ. This element is then stored, for example on a coil of radius R ⁇ before being wound, for example around a core of a flexible pipe of radius, for example R3. The profiled element passes from radius R2 to radius R3 by an infinite radius.
- the profiled element comprises for example a hollow elongated body 1, being, for example in the form of a longitudinal groove 6, comprising one or more means for fixing or mechanically fastening the composite material in the groove, the means for mechanical fixing being described in more detail in FIGS. 2 to 7 under the references 24, 25, 26, 27, 28, 29, 30, 31, 32.
- This longitudinal groove preferably has a "U" shape, consisting of three walls, one wall of which forms the bottom and two side walls, the angles between each of the side walls and the wall forming the bottom of the groove being between 80 and 100 ° and preferably close to 90 °.
- the groove 6 is, for example, filled as it is wound on the drum, with high resistance filaments 8, or rovings, previously impregnated with a stabilizable matrix, the whole filaments and matrix forming the composite material. or core 9 ( Figure 2) of the profile or profiled element.
- the elongated body thus lined with the unstabilized composite material then passes through a treatment device 10 suitable for stabilizing the composite material.
- the means 24, 25, 26, 27, 28, 29, 30, 31 for mechanical retention or fixing may also consist of a part of the mold, for example a part 31, 32 of the wall of the mold, as FIGS. 6 and 7 show this by way of nonlimiting illustration.
- the process for manufacturing the profiled element may include an additional shaping step, known to those skilled in the art for producing the mechanical fastening means 32.
- This step is generally carried out after the stabilization of the composite material but could also, without departing from the scope of the invention, be carried out before, during, or even after the manufacturing steps of the profiled element. They can also be preformed.
- the elongated hollow body when it serves as a support mold, can preferably be adapted to resist abrasion, in particular that resulting from the friction of the different layers between them.
- it can be formed for example of a material whose nature has an abrasion resistance itself, or even have geometric characteristics which give it sufficient strength to overcome the abrasion phenomenon.
- a mold is used, for example, the walls of which may be in contact with other walls have a thickness chosen, preferably, according to the nature of the material to resist these abrasion phenomena.
- the elongated body is, for example, made of a material chosen from the list of the following materials: polyamide 11, high density polyethylene, polypropylene with or without carbon black, polytetrafluoroethylene or any other material abrasion resistant.
- polyamide 11 high density polyethylene
- polypropylene with or without carbon black polytetrafluoroethylene or any other material abrasion resistant.
- the nature of the material chosen is, in all cases, compatible with the stabilization treatment adopted.
- PVDF polyvinylidene fluoride
- PPS phenylene polysulfide
- PEI polyetherimide
- PEEK polyetheretherketone
- PAI polyamide imide
- the shape of the fixing means described in relation to the figures given below, their number and their distribution relative to the hollow elongated body are chosen depending in particular on the materials used, the material of the support mold and / or the material forming the core.
- the choice of parameters, such as the shape, number and distribution of the fastening means, may also depend on the forces applied to the profiled element during its use and / or during its manufacture.
- the element can, in fact, be used alone or even integrated into a flexible pipe as described for example in FIG. 9, obtained by winding one or more several layers of profiled elements comprising at least one mechanical type of fixing means.
- the stresses to which the flexible tube is subjected, varying in particular according to its use can generate forces in directions of low resistance, such as the transverse directions for unidirectional composite materials which influence the choice of the fixing means.
- Figure 2 is given to show, by way of indication, the preferred geometric and dimensional characteristics to be verified by the mechanical fastening means, in particular their dimension relative to the thickness of the wall of the hollow elongated body.
- the mechanical fixing means are, for example, protuberances 24 extending over a certain length relative to one of the walls of the hollow elongated body which are inserted into the composite material or core 9.
- the pressure applied to the profiled element is inversely proportional to the application surface.
- the surface or width of application corresponds substantially to the internal width of the groove, that is to say to the distance / separating the interior of the two side walls 21 and 22 of the groove.
- the fastening means 24 have a width "i" which fits into the composite material 9 and the width of the groove is "1", which corresponds to a width of application of the pressure that is substantially equal. to Z-2i. It is important to minimize the width "i" of the stud penetrating the core while retaining a value sufficient to ensure the maintenance of the core in the mold. This choice is particularly important for molds having a low modulus in compression and the cores of high modulus.
- the width "i" of the fixing means inserted into the composite material is preferably between 0.05n and 0.25n, "n” being the total width of the core corresponding substantially to the internal width of the groove, and preferably between 0.08 and 1.30n.
- the minimum radii of curvature of the fastening means 24 will preferably be greater than 0.2 mm, so as to minimize the initiation of possible cracks in the planes parallel to the fibers.
- the fixing means are preferably distributed symmetrically to balance the core of composite material inside the hollow elongated body and distribute it as uniformly as possible.
- the material of the fastening means may be identical in nature to that of the hollow elongated body, or of a different nature compatible with the material of the elongated element.
- FIG. 3 shows a preferred embodiment of an element according to the invention where the fixing means are formed for example by protuberances, 28, 29, preferably located on each of the side walls 21, 22 of the groove 6 and extending at least in part along its length, like rails.
- These rails are preferably distributed symmetrically along the side walls of the groove 6, that is to say that the rail corresponding to the projection 28 located on the side wall 21 of the groove 6 is opposite. -vis the rail referenced 28 located on the side wall 22 located opposite.
- the rail can extend continuously over the entire length of the groove.
- the effective width of these protuberances 28, 29 is advantageously between 0.05n and 0.25n, with "n" total width of the core, and preferably between 0.08 and 0.130n.
- Such an arrangement advantageously allows the axial displacement or sliding of the core in the groove, the axis with respect to which reference is made being the longitudinal axis of the groove corresponding to that of the elongated element.
- the lengths of the different rail portions, and the intervals separating these rail portions can take different values chosen of course to ensure the maintenance of the core in the groove.
- the dimensions and arrangement of these various elements are adapted to maintain the axial movement of the core in the groove of the elongated body.
- the mechanical fixing means consist of two recesses such as trenches or grooves 25 and 26, which preferably extend over the entire length of the side walls 21, 22 of the groove 6.
- the composite material forming the core penetrates at least partially into these trenches, to be held in the groove.
- the shape, the number and the dimension of these grooves are chosen for example with respect to their position in the groove 6, in particular with respect to the wall or walls on which they are located. They are also chosen, for example, according to the number of grooves distributed in the groove.
- the depth of the grooves "r" is fixed relative to the thickness "e" of the wall of the groove, the value of the ratio r / e preferably being between 0.1 and 0.4, to ensure the maintenance of the core in the mold while avoiding weakening the latter.
- Figures 5 and 6 show an example of an elongated body comprising mechanical fastening means which are formed from a portion 31 of the side walls of the elongated body.
- the fixing means can be shaped during or after the stabilization treatment of the composite material, or the treatment which allows the material constituting the core to pass into its final state.
- they can be preformed before filling the groove with the composite material and the fibers forming the core, their final shaping being carried out after the filling step.
- the hollow elongate body comprises, for example in each of the upper parts of the walls 21, 22, a portion 31, swollen or not, which serves as a base for creating mechanical fixing means 32 (FIG. 6).
- FIG. 6 shows the mold and its mechanical fixing means 32 after the shaping step.
- FIG. 7 shows another alternative embodiment of a profiled element according to the invention in which the mechanical fixing means is in the form of a protrusion 30 formed at the bottom, or wall of the groove, which extends over a part of the length of the profiled element, such as a rail.
- the rail 30 has for example a shape of "T" having a leg of height "t", a width at the foot l and a width at the top 12-
- the values of the widths l ⁇ I2 are chosen for example as a function of the width of the core "n", and preferably in the following manner: _2 ⁇ 0.5 n and (l 2 ) / 3>li> 0.1 n.
- FIG. 8 represents an exemplary embodiment of the profiled element according to the invention where the groove is provided with a single groove 27 situated in its lower wall 23.
- the groove 27 extends for example over the entire length of the elongated body hollow and has a depth "h".
- the ratio h / e, where "e" is the thickness of the wall is preferably between 0.2 and 0.5. This range of values makes it possible to maintain the core in the groove while preventing the projection thus created in the wall of the groove from weakening the latter. It is understood that, without departing from the scope of the invention, the various embodiments of the fixing means described in the preceding figures can be combined with one another and distributed with respect to the profiled element in one of the ways described above. above.
- the present invention also applies to hollow elements whose walls make angles of any value.
- the thicknesses of the walls forming the hollow profiled element may be different.
- the profiled element as described above comprising a support mold provided with mechanical fixing means is advantageously used to manufacture watertight flexible pipes such as that described by way of illustration and in no way limitative in FIG. 5, the resistance structure to the traction being carried out according to the prior art for example.
- Such pipes can be subjected to significant tensile forces.
- This pipe is composed, from the inside to the outside, by:
- a flexible internal sheath or tabular core 51 for example of a plastic material such as a thermoplastic or an elastomer,
- a flexible metallic frame 52 surrounding the tubular core 51 and resistant to the forces generated by the pressures prevailing inside and outside the flexible pipe, the latter being able for example to be constituted by helical winding, at low not, of a self-stapling profile having a section in the form of S, Z or T; thus, the pressure does not act directly on the tubular core 51,
- a flexible and waterproof sheath 53 made of a plastic material such as an elastomer and covering the frame 52, thus making it possible to protect it from external aggressions,
- the tensile strength frame 54 is composed of two plies 55 and 56 wound helically and in the opposite direction with a large winding pitch.
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Ropes Or Cables (AREA)
- Rigid Pipes And Flexible Pipes (AREA)
- Moulding By Coating Moulds (AREA)
- Spinning Or Twisting Of Yarns (AREA)
Abstract
Description
Claims
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB9901047A GB2330394A (en) | 1997-05-16 | 1998-05-05 | Elongate streamlined element capable of changing its curvature and method for making same |
AU76598/98A AU7659898A (en) | 1997-05-16 | 1998-05-05 | Elongate streamlined element capable of changing its curvature and metho d for making same |
BR9804916-0A BR9804916A (pt) | 1997-05-16 | 1998-05-05 | Elemento de forma alongada capaz de mudar a curvatura e processo de fabricação. |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR9706144A FR2763380B1 (fr) | 1997-05-16 | 1997-05-16 | Element profile allonge susceptible de changer de courbure et son procede de fabrication |
FR97/06144 | 1997-05-16 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO1998053237A1 true WO1998053237A1 (fr) | 1998-11-26 |
Family
ID=9507040
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/FR1998/000904 WO1998053237A1 (fr) | 1997-05-16 | 1998-05-05 | Element profile allonge susceptible de changer de courbure et son procede de fabrication |
Country Status (5)
Country | Link |
---|---|
AU (1) | AU7659898A (fr) |
BR (1) | BR9804916A (fr) |
FR (1) | FR2763380B1 (fr) |
GB (1) | GB2330394A (fr) |
WO (1) | WO1998053237A1 (fr) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2010128238A1 (fr) | 2009-05-04 | 2010-11-11 | Technip France | Procede de fabrication d'une conduite tubulaire flexible de grande longueur |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN100457430C (zh) * | 2003-05-30 | 2009-02-04 | 陈伟明 | 无焊缝连续挤出塑料缠绕的容器本体的制作工艺 |
CN102159619B (zh) | 2008-09-19 | 2015-02-18 | 索维高级聚合物股份有限公司 | 聚芳基醚酮/全氟聚合物组合物制成的挠性管 |
WO2012090184A2 (fr) * | 2010-12-31 | 2012-07-05 | Szagru Sp. Z O.O. | Procédé de fabrication d'un tuyau à partir d'un matériau thermoplastique et ruban thermoplastique pour fabrication d'un tuyau |
EP2825802A4 (fr) * | 2012-03-13 | 2015-12-02 | Nat Oilwell Varco Denmark Is | Élément de renforcement pour tuyau flexible non lié |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3199541A (en) * | 1963-04-03 | 1965-08-10 | Flexible Tubing Corp | Interlocking strip flexible hose |
DE2141281A1 (de) * | 1971-08-18 | 1973-03-01 | Kessler & Co Tech Chem Gmbh | Innen glatter und aussen schraubengangfoermiger, mit einer stuetzwendel versehener kunststoffschlauch |
FR2494401A1 (fr) | 1980-11-18 | 1982-05-21 | Inst Francais Du Petrole | Procede de fabrication d'un profile allonge en matiere plastique armee capable de resister a l'abrasion |
WO1985003755A1 (fr) * | 1984-02-20 | 1985-08-29 | Rib Loc Hong Kong Limited | Procede et mecanisme pour former et sceller des tubes enroules helicoidalement |
US4719945A (en) * | 1986-12-05 | 1988-01-19 | Fabricated Plastics, Inc. | Hose with composite joints |
EP0333061A1 (fr) * | 1988-03-16 | 1989-09-20 | Oy KWH Pipe AB | Procédé de fabrication d'un tuyau thermoplastique par enroulement |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1412810U (fr) * |
-
1997
- 1997-05-16 FR FR9706144A patent/FR2763380B1/fr not_active Expired - Lifetime
-
1998
- 1998-05-05 AU AU76598/98A patent/AU7659898A/en not_active Abandoned
- 1998-05-05 WO PCT/FR1998/000904 patent/WO1998053237A1/fr active Application Filing
- 1998-05-05 BR BR9804916-0A patent/BR9804916A/pt not_active Application Discontinuation
- 1998-05-05 GB GB9901047A patent/GB2330394A/en not_active Withdrawn
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3199541A (en) * | 1963-04-03 | 1965-08-10 | Flexible Tubing Corp | Interlocking strip flexible hose |
DE2141281A1 (de) * | 1971-08-18 | 1973-03-01 | Kessler & Co Tech Chem Gmbh | Innen glatter und aussen schraubengangfoermiger, mit einer stuetzwendel versehener kunststoffschlauch |
FR2494401A1 (fr) | 1980-11-18 | 1982-05-21 | Inst Francais Du Petrole | Procede de fabrication d'un profile allonge en matiere plastique armee capable de resister a l'abrasion |
WO1985003755A1 (fr) * | 1984-02-20 | 1985-08-29 | Rib Loc Hong Kong Limited | Procede et mecanisme pour former et sceller des tubes enroules helicoidalement |
US4719945A (en) * | 1986-12-05 | 1988-01-19 | Fabricated Plastics, Inc. | Hose with composite joints |
EP0333061A1 (fr) * | 1988-03-16 | 1989-09-20 | Oy KWH Pipe AB | Procédé de fabrication d'un tuyau thermoplastique par enroulement |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2010128238A1 (fr) | 2009-05-04 | 2010-11-11 | Technip France | Procede de fabrication d'une conduite tubulaire flexible de grande longueur |
Also Published As
Publication number | Publication date |
---|---|
AU7659898A (en) | 1998-12-11 |
GB2330394A (en) | 1999-04-21 |
BR9804916A (pt) | 1999-09-14 |
GB9901047D0 (en) | 1999-03-10 |
FR2763380A1 (fr) | 1998-11-20 |
FR2763380B1 (fr) | 1999-06-18 |
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