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1.发明授权公开(公告)号：US11559949B2
公开(公告)日：2023-01-24
申请号：US16303581
申请日：2017-04-28
Applicant: SAIPEM S.A.
Inventor： Giulio Fatica , Taoufik Majdoub
Abstract: A method of connecting together two unit elements (4, 4′) of a fluid transport pipe, each unit pipe element being covered in an outer insulating coating (6, 6′) made of a thermoplastic material, with the exception of an end portion that does not have an outer insulating coating. The method includes: a step of welding together two abutting unit pipe elements; a step of positioning an annular sleeve (14) around a cut-back and in part around the outer insulating coatings of the two unit pipe elements, the sleeve being made of a thermoplastic material; a step of fastening the sleeve in sealed manner by weld bonding on the outer insulating coatings; and a step of applying an external pressure on the sleeve to enable it to be deformed elastically and match the shape of the respective end portions of the two unit pipe elements.
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公开(公告)号：US11338526B2
公开(公告)日：2022-05-24
申请号：US16347525
申请日：2017-10-24
Applicant: SAIPEM S.A.
Inventor： François-Régis Pionetti , Taoufik Majdoub , Axel Sundermann , Jalil Agoumi
IPC: B29C65/00 , B29C65/36 , F16L47/02 , B29C44/12 , B29L23/00 , B29K705/12 , B29K23/00 , B29C70/66 , B29K75/00 , B29K509/08
Abstract: A method for assembling two tubes (1, 2) made from thermoplastic materials, that involves welding by heating two applied rotational contact surfaces of two parts of two tubes (1, 2), respectively, arranged end to end or overlapping coaxially (XX′). The method involves induction heating of at least one conductive welding element (4), arranged at the interface (3) between the two contact surfaces, by generating a magnetic field at said conductive welding element or elements, such that the melting of the thermoplastic materials constituting said contact surfaces produces a continuous and sealed weld at said interface on at least one closed loop along the entire perimeter of said interface.
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公开(公告)号：US20210331422A1
公开(公告)日：2021-10-28
申请号：US17368423
申请日：2021-07-06
Applicant: SAIPEM S.A.
Inventor： Giulio Fatica , Taoufik Majdoub
Abstract: A method of connecting together two unit elements (4, 4′) of a fluid transport pipe, each unit pipe element being made of metal alloy and being covered in an outer insulating coating (6, 6′) made of a thermoplastic material, with the exception of an end portion that does not have an outer insulating coating, the method comprising a step of butt-welding together two unit pipe elements at their end portions having no outer insulating coating, a step of mechanically assembling at least two rigid shells (14, 16) made of a thermoplastic material on the end portions of the unit pipe elements not having an outer insulating coating, and a step of keeping the shells sealed against the outer insulating coating of the two unit pipe elements.
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Patent Agency Ranking
公开(公告)号：US11441719B2
公开(公告)日：2022-09-13
申请号：US16347515
申请日：2017-10-24
Applicant: SAIPEM S.A.
Inventor： François-Régis Pionetti , Axel Sundermann , Taoufik Majdoub , Jalil Agoumi
Abstract: A method of heating an inner pipe of a set of coaxial pipes, wherein the inner pipe is heated by induction using an electromagnetic induction coil (5) surrounding the outer pipe coaxially, the coil passing electrical power at a frequency lower than 100 Hz optimized for maximum energy efficiency of Joule effect heating of the inner pipe. A device (8) is also provided for induction heating an inner pipe of coaxial pipes, the device has a) an induction heater having at least one electromagnetic induction coil (5) coaxially surrounding the outer pipe of the coaxial pipes, and b) a raising device (9) for raising a portion (1-2) of coaxial pipes (1) above the sea bed (13) together with the induction coil(s) (5) surrounding it.
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5.发明申请公开(公告)号：US20200316876A1
公开(公告)日：2020-10-08
申请号：US16303581
申请日：2017-04-28
Applicant: SAIPEM S.A.
Inventor： Giulio FATICA , Taoufik Majdoub
Abstract: A method of connecting together two unit elements (4, 4′) of a fluid transport pipe, each unit pipe element being covered in an outer insulating coating (6, 6′) made of a thermoplastic material, with the exception of an end portion that does not have an outer insulating coating. The method includes: a step of welding together two abutting unit pipe elements; a step of positioning an annular sleeve (14) around a cut-back and in part around the outer insulating coatings of the two unit pipe elements, the sleeve being made of a thermoplastic material; a step of fastening the sleeve in sealed manner by weld bonding on the outer insulating coatings; and a step of applying an external pressure on the sleeve to enable it to be deformed elastically and match the shape of the respective end portions of the two unit pipe elements.
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公开(公告)号：US20200307113A1
公开(公告)日：2020-10-01
申请号：US16303565
申请日：2017-05-16
Applicant: SAIPEM S.A.
Inventor： Giulio FATICA , Taoufik Majdoub
Abstract: The invention provides a method of connecting together two unit elements (4, 4′) of a fluid transport pipe, each unit pipe element being made of metal alloy and being covered in an outer insulating coating (6, 6′) made of a thermoplastic material, with the exception of an end portion that does not have an outer insulating coating, the method comprising a step of butt-welding together two unit pipe elements at their end portions having no outer insulating coating, a step of mechanically assembling at least two rigid shells (14, 16) made of a thermoplastic material on the end portions of the unit pipe elements not having an outer insulating coating, and a step of keeping the shells sealed against the outer insulating coating of the two unit pipe elements.
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公开(公告)号：US10712214B2
公开(公告)日：2020-07-14
申请号：US16343354
申请日：2017-10-18
Applicant: SAIPEM S.A.
Inventor： Taoufik Majdoub , François-Régis Pionetti , Axel Sundermann , Jalil Agoumi
Abstract: A method of monitoring variation in the thrust exerted by at least one buoy exerting traction on an undersea pipe, wherein: 1) the deformation of at least one optical fiber is measured by measuring variation of an optical signal in said fiber extending on the surface or embedded securely in the bulk of at least one of the following support elements: a) the buoy; b) at least a portion of: b1) the length of the tubular wall of the pipe or b2) an anticorrosion coating or a thermally insulating material fastened on the surface of said pipe, on which said buoy exerts traction, and c) an abutment part secured to said pipe or buoy, and on which said buoy exerts said thrust; 2) a variation of said thrust exerted by said buoy is determined as a function of said variation of the optical signal.
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公开(公告)号：US10562235B2
公开(公告)日：2020-02-18
申请号：US15762499
申请日：2016-09-21
Applicant: SAIPEM S.A.
Inventor： François-Régis Pionetti , François Lirola , Taoufik Majdoub
Abstract: The present invention relates to a method and to a device for assembling together two tubes (1, 2) comprising a tubular junction sleeve and an internal pipe liner tube made of thermoplastic materials by laser welding two contact surfaces of revolution (1-1, 2-1) pressed one against the other at the ends of the tubular sleeve of said liner tube overlapping coaxially.
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