Metal, Elastomeric (e.g., Rubber), And Fabric Layers Patents (Class 285/222.2)
  • Patent number: 11293571
    Abstract: A method and apparatus are disclosed for terminating flexible pipe body. The apparatus comprises an end fitting core portion (330), an end fitting termination portion (310) and a spacer ring member (335) locatable between the core portion (330) and the termination portion (310) for maintaining a whole anterior end surface of the core portion (330) and an opposed whole posterior end surface of the termination portion (310) in a spaced apart relationship.
    Type: Grant
    Filed: April 28, 2016
    Date of Patent: April 5, 2022
    Assignee: Baker Hughes Energy Technology UK Limited
    Inventors: Christopher Gray, Philip Nott, Ashley Clack, John McNab
  • Patent number: 10655772
    Abstract: The present invention relates to an assembly including an end-fitting and an unbonded flexible pipe, which end-fitting is adapted for connecting the unbonded flexible pipe to a connector. The end-fitting has a through-going opening with a centerline and a front end and a rear end, and the end-fitting further provides for establishing an electrical connection to a least one electrical heating system in the unbonded flexible pipe. Moreover, the end-fitting includes at least one first metallic part having a first surface contacting a second surface of at least one second part in the end-fitting, wherein the first surface of the first metallic part, at least in the vicinity of the through-going opening, includes a coating having a high electrically resistivity. The invention also relates to a method for providing an end-fitting having good properties in respect of reducing galvanic corrosion.
    Type: Grant
    Filed: October 14, 2015
    Date of Patent: May 19, 2020
    Assignee: NATIONAL OILWELL VARCO DENMARK I/S
    Inventors: Tom Larsen, Thorsten Holst
  • Patent number: 10151408
    Abstract: There is illustrated and described a plastics material hose comprising: a hose wall of plastics material, and an electrical conductor, wherein the electrical conductor is constructed as a braid having a plurality of fibers. In order to achieve compensation for and reliable discharge of electrical charge concentrations with specific disadvantages being avoided, it is proposed that the braid have at least one carbon fiber.
    Type: Grant
    Filed: February 17, 2017
    Date of Patent: December 11, 2018
    Assignee: NORRES Beteiligungs-GmbH
    Inventor: Burkhard Mollen
  • Patent number: 10066765
    Abstract: Embodiments of the invention relate to the construction of a sealed connection between an elastomeric or synthetic polymer flexible pipe or hose and a metallic coupling member. The coupling member surrounds an armor layer at a free end of the flexible pipe or hose. A sealing area is defined by a recessed portion of the pipe coupling into which a sealing material is introduced. An inner layer of the flexible pipe or hose may extend into the sealing area where it is bonded to the sealing material. The sealing material and the inner liner layer may each be comprised of a semi-crystalline thermoplastic material. Furthermore, a reinforcement material is provided in the inner layer.
    Type: Grant
    Filed: May 21, 2015
    Date of Patent: September 4, 2018
    Assignee: MANTARAY INNOVATIONS LIMITED
    Inventor: Bruno Jaspaert
  • Patent number: 10053267
    Abstract: A method including the following steps: placing a rear locking collar (62) around an outer ply (25), placing a first shaping guide (82) for shaping the folding of the end segments (32) of the outer ply (25); folding the end segments (32) of the outer ply (25) rearwards, folding the end segments (32) of an inner ply (24) rearwards. Before the step for folding the end segments (32) of the inner ply (24) rearwards, a second shaping guide (84) is placed for shaping the folding of the end segments (32) of the inner ply (24), a second shaping guide (84) being separate from the first shaping guide (82), the end segments (32) of the inner ply (24) bearing on the second shaping guide (84) after the folding step.
    Type: Grant
    Filed: March 6, 2014
    Date of Patent: August 21, 2018
    Assignee: TECHNIP FRANCE
    Inventors: Benjamin Le Blan, German Bruno, Grégory Peckeu, Antoine Colmard
  • Patent number: 9976681
    Abstract: A fluid sealing element, a fluid sealing assembly, a method of providing a fluid seal, and a method of terminating a flexible pipe body in an end fitting are disclosed. The fluid sealing element (802) has an annular body portion locatable between an end fitting body (801) and an inner collar member (808) of an end fitting, and a tapered portion extending substantially perpendicular to the annular body portion at a radially inner region thereof. The method includes urging a fluid retaining layer (804) of a flexible pipe radially outwardly against an abutment surface of the inner collar member of the end fitting.
    Type: Grant
    Filed: February 24, 2012
    Date of Patent: May 22, 2018
    Assignee: GE OIL & GAS UK LIMITED
    Inventors: George Karabelas, Richard Alasdair Clements
  • Patent number: 9759364
    Abstract: A hose assembly is provided having a bendable inner hose, a bendable outer hose, and a ferrule, wherein both the inner and outer hose are connected to the ferrule.
    Type: Grant
    Filed: January 21, 2014
    Date of Patent: September 12, 2017
    Assignee: Straham Valves, Inc.
    Inventor: Samuel Gregory Stednitz
  • Patent number: 9587772
    Abstract: Sealed connection between an elastomeric or synthetic polymer flexible pipe or hose and a metallic coupling member. The coupling member surrounds an armor layer at a free end of the flexible pipe or hose. A sealing area is defined by a recessed portion of the pipe coupling into which a sealing material is introduced. An inner liner layer thereof may extend into the sealing area where it is bonded to the sealing material. The sealing material and the inner liner layer may each include a semi-crystalline thermoplastic material. A reinforcement material may be provided in the inner liner layer. In one embodiment the sealing material is injected into the sealing area. In another embodiment the sealing material is provided in the form of meltable ring which fits into the sealing area before fitting of the coupling member, and is activated by an induction heater to effect the sealed connection.
    Type: Grant
    Filed: November 22, 2013
    Date of Patent: March 7, 2017
    Assignee: MANTARAY INNOVATIONS LIMITED
    Inventor: Bruno Jaspaert
  • Patent number: 9541225
    Abstract: A bushing including a first annular internal rib adapted and configured to engage a corrugation valley of corrugated tubing and a second annular internal rib adapted and configured to press against a conductive layer surrounding the corrugated tubing is provided. The second annular internal protrusion has a rounded, substantially non-piercing profile. Also provided is a sealing device for connecting a length of tubing. The sealing device includes a body member defining a sleeve portion and the bushing as described herein adapted and configured to be received in the sleeve portion. Also provided is a length of tubing including: an inner tubing layer and the fitting as described herein engaged with the inner tubing layer.
    Type: Grant
    Filed: June 27, 2014
    Date of Patent: January 10, 2017
    Assignee: Titeflex Corporation
    Inventor: Jordan Strunk
  • Patent number: 9500308
    Abstract: A spiral-type flexible pipe connector is provided that includes a socket, into which one end of a spiral-type flexible pipe is inserted, a nut coupled to the socket to fix the spiral-type flexible pipe to the socket, and a packing and a support ring located between the one end of the spiral-type flexible pipe and the socket. The packing includes a sealing portion, into which a tip of the one end of the spiral-type flexible pipe is inserted, such that the sealing portion surrounds the tip of the one end of the spiral-type flexible pipe, thereby sealing a connection part of the spiral-type flexible pipe.
    Type: Grant
    Filed: December 3, 2009
    Date of Patent: November 22, 2016
    Assignee: Dong-A Flexible Metal Tubes Co., Ltd.
    Inventor: Jin Lim Choi
  • Patent number: 9422704
    Abstract: The present invention provides a replacement closet flange for installing into an end of a drain pipe having an inner surface and a method of assembling a replacement closet flange. In general, the replacement closet flange includes a main body comprising a substantially cylindrical section and a flange section extending radially outward from and approximately perpendicular to an upper end of the cylindrical section, a flexible seal attached to at least a portion of the cylindrical section proximate a lower end thereof and configured, when the replacement closet flange is installed, to sealingly engage with the inner surface of the drain pipe, and at least one retaining clip attached to a location about an outer periphery of the cylindrical section. The retaining clip includes a retaining tab proximate an end thereof configured, when the replacement closet flange is installed, to fixedly engage with an inner surface of the drain pipe.
    Type: Grant
    Filed: April 1, 2015
    Date of Patent: August 23, 2016
    Assignee: IPS Corporation
    Inventor: James H. Whitehead
  • Patent number: 8881436
    Abstract: A composite hose includes a tubular body of flexible material for transferring cryogenic fluid through the hose and for preventing fluid leakage through the body. The tubular body includes an inner wire helix spirally wound along the length of the hose, an outer wire helix spirally wound along the length of the hose, at least two reinforcing layers placed in between the inner and outer wire, at least one sealing layer placed between two reinforcing layers, an end fitting at both ends of the tubular body, each end fitting provided with a part for connection to another hose flange and an elongated cylindrical part, which is divided in an anchoring area for anchoring the tubular body and a static sealing area for fluid tight sealing of the hose. A gas tight sealing is created by bonding the at least one sealing layer to the cylindrical part over a ring shaped bonding area.
    Type: Grant
    Filed: April 15, 2009
    Date of Patent: November 11, 2014
    Assignee: Trelleborg Industrie SAS
    Inventors: Jack Pollack, Jean-Pierre Queau, Philippe Albert Christian Menardo
  • Patent number: 8499799
    Abstract: This flexible pipe comprises a versatile and flexible tubular body (PP) which comprises, from the outside toward the inside, a pressure arch (1b-1c) with filaments (10) submerged in a layer of elastomer and wound in a helix with an angle of 54.7° in relation to the profile plates and an attached sealing layer (1a), as well as a pair of rigid end connector tips (EC) which comprises two coaxial cylindrical sleeves, an inner one (2) in which the sealing layer (1a) is fitted and held, and an outer one (7) which extends axially from the body side (PP) beyond the inner sleeve (2) while surrounding the transitional area, with variable diameter, of the pressure arch; the connector end is provided with a pair of flexible annular support elements (5, 6) with variable profile, arranged at this transitional area and inserted between the sealing layer (1a) and the pressure arch (1b-1c), and between the pressure arch (1b-1c) and the flange (7), respectively, avoiding shearing of the filaments upon inflation.
    Type: Grant
    Filed: May 28, 2009
    Date of Patent: August 6, 2013
    Assignee: Saltel Industries
    Inventors: Jean-Louis Saltel, Benjamin Saltel, Gwenaël Tanguy, Samuel Thiebaut
  • Patent number: 8356377
    Abstract: A reinforced cup for use on downhole devices is disclosed. The reinforced cup is comprised of a cylindrical metal sleeve. Surrounding the outer circumferential surface of the metal sleeve is a flexible mesh cage comprised of a plurality of woven wire strands. A resilient cover is formed around the metal sleeve and flexible mesh cage so that the metal sleeve and flexible mesh fabric are encased by the resilient cover. The flexible mesh cage serves to reinforce the resilient cover.
    Type: Grant
    Filed: May 11, 2010
    Date of Patent: January 22, 2013
    Assignee: Full Flow Technologies, LLC
    Inventor: Thomas M. Harper
  • Patent number: 8302633
    Abstract: A flexible pipe comprising a flexible cylindrical tubular pipe body connected at each of its ends to a rigid connector end fitting in the form of a sleeve. The wall of the pipe body is mechanically reinforced by at least one traction layer of filaments of small thickness, presenting high traction strength, that are wound helically about the longitudinal axis of the pipe. The traction layer is composed of an array of uninterrupted filaments interconnecting the two end fittings alternately in one direction and then in the other direction, while being fastened on the end fittings.
    Type: Grant
    Filed: June 14, 2006
    Date of Patent: November 6, 2012
    Assignee: Saltel Industries
    Inventor: Jean-Louis Saltel
  • Patent number: 8276620
    Abstract: A flexible pipe for conducting fluid, such as offshore production fluids, has interior tubing, a series of rings and clamps, and exterior tubing. The interior tubing has an extruded tube and a surrounding layer. Outer rings dispose about the interior tubing and abut end-to-end. Inner rings dispose on the tubing and fit in between each of the outer rings. These inner rings have tapered surfaces that fit against beveled ends defined in each end of the outer ring's internal bore. The clamps affix the abutting ends of the outer rings together, and the exterior tubing disposes on the series of rings and clamps. This exterior tubing has an inner layer of wrapped tape surrounded by an extruded tube. A flange couples by an end clamp to the end ring of the pipe, and inner and outer supports on the flange support the interior and exterior tubing.
    Type: Grant
    Filed: August 24, 2009
    Date of Patent: October 2, 2012
    Inventor: Dang The Vo
  • Publication number: 20120211975
    Abstract: The present invention relates to an end fitting of a flexible riser. The device makes it possible to carry out the assembly procedure without the need to bend the tensile armour. By means of the assembly procedure thereof, the technique proposed eliminates residual tension due to plastic deformation of the tensile armour and modifications in the microstructural properties of the steel, imposed by current end fittings and the corresponding techniques for assembling the same.
    Type: Application
    Filed: February 22, 2012
    Publication date: August 23, 2012
    Applicant: PETRÓLEO BRASILEIRO S.A. - PETROBRAS
    Inventors: George Carneiro CAMPELLO, Marcos Carpigiani De Almeida
  • Patent number: 8220129
    Abstract: A method and apparatus for securing an end fitting to a flexible pipe body are disclosed. The method includes the steps of securing an open end of a portion of flexible pipe body to an inner collar member, urging an open mouth of a body portion of an end fitting towards the flexible pipe body and inner collar member and securing the end fitting body portion to the inner collar member.
    Type: Grant
    Filed: April 23, 2007
    Date of Patent: July 17, 2012
    Assignee: Wellstream International Limited
    Inventors: Tony Eccleston, George Karabelas, Zhimin Tan
  • Patent number: 8079619
    Abstract: An end fitting (200) for terminating an end of a hose comprising a tubular body of flexible material arranged between inner and outer helical wires, characterized in that the end fitting comprises: an inner member (202) adapted to be disposed at least partially within the hose; and a hose engaging member (208) adapted to press against the inner member 202 to retain the hose between itself and the inner member (202). The end fitting also includes a separate means for retaining one or more layers of the hose, the retaining means comprising an outer retaining member (232) adapted to press against an inner retaining member (230) to retain the or each layer of the hose between the outer and inner retaining members (232, 230) of the retaining means.
    Type: Grant
    Filed: March 5, 2004
    Date of Patent: December 20, 2011
    Assignee: BHP Billiton Petroleum Pty Limited
    Inventors: Joel Aron Witz, David Charles Cox, Gerard Anthony Hall, Matthew Vernon Ridolfi, Anthony James Wort, Richard James Anthony Smith
  • Patent number: 7967030
    Abstract: A long-length hose spliced from two or more hoses containing an inner sealing layer, at least two spirally laid reinforcing plies, and a cover. A liner forming the inner sealing layer is formed by leak-tight splicing of liners of hoses to be spliced and the reinforcing plies are embedded into filling/adhesive material inside of a rigid outer sleeve, at the location of the splicing.
    Type: Grant
    Filed: August 23, 2007
    Date of Patent: June 28, 2011
    Assignee: Phoenix Rubber Gumiipari Kft.
    Inventors: Tibor Nagy, Tamas Katona, Imre Domonkos, Laszio Nacsa, Peter Gorgenyi, Elemer Lantos
  • Publication number: 20100117355
    Abstract: This invention relates to an improved umbilical hose end coupling that is useful with textile-reinforced hoses in the oil and gas industry, especially high pressure hoses for use in offshore systems. This hose coupling comprises a sleeve and an insert for the sleeve, the insert having a hose end for insertion into the hose and the sleeve having a hose end for covering the exterior of the hose and the insert, and the insert and sleeve each having a coupling end for engaging each other, and the sleeve having an interior surface for gripping the hose, the interior surface having i) distributed on the hose end, a plurality of grooves with at least one rounded annular tooth, and ii) distributed on the coupling end, a plurality of grooves with rectangular annular teeth.
    Type: Application
    Filed: November 10, 2008
    Publication date: May 13, 2010
    Inventor: Mark Allan Lamontia
  • Publication number: 20100025985
    Abstract: An attachment fitting and a method for connection to a tubular duct comprising at least one ply of armors, the armors having a free end respectively defining an outer surface, the attachment fitting comprising a bushing and a sleeve having an attachment part and a connection part with a reception portion, the sleeve being mounted on the duct by spreading the free ends of the armor perpendicularly to the reception portion, the armors comprising a widening, device, the bushing being mounted about the connection part and forming an annular chamber for receiving a flow of a mass-curing material for encapsulating the free ends of the armors. The widening device connected to the free outer surface of the free ends of the armors.
    Type: Application
    Filed: September 13, 2007
    Publication date: February 4, 2010
    Inventors: Roberto Jourdan De Aquino, Jean-Francois Langui, Jucimar Coelho, Gaspar Cunha Xavier
  • Publication number: 20090309356
    Abstract: A flexible pipe comprising a flexible cylindrical tubular pipe body connected at each of its ends to a rigid connector end fitting in the form of a sleeve. The wall of the pipe body is mechanically reinforced by at least one traction layer of filaments of small thickness, presenting high traction strength, that are wound helically about the longitudinal axis of the pipe. The traction layer is composed of an array of uninterrupted filaments interconnecting the two end fittings alternately in one direction and then in the other direction, while being fastened on the end fittings.
    Type: Application
    Filed: June 14, 2006
    Publication date: December 17, 2009
    Applicant: Saltel Industries
    Inventor: Jean-Louis Saltel
  • Patent number: 7631667
    Abstract: The invention relates to a hose that comprises at least one inner layer (1) produced from an elastomer material, an embedded reinforcement carcass produced from a textile and/or metal material, an outer layer produced from an elastomer material and a coupling having a flange section inside the hose end. The inventive hose is characterized in that the coupling comprises a fitting, a supporting flange and at least one annular lamina. A first reinforcement carcass, consisting of at least one reinforcement layer, extends along the entire inside of the fitting and changes in the flange area from the axial to the radial direction of extension. The radial area of the first reinforcement carcass is mounted between the supporting flange and the annular lamina(e). A second reinforcement carcass, likewise consisting of at least one reinforcement layer, partially or completely holds the outside of the fitting, especially by way of fastening means.
    Type: Grant
    Filed: February 13, 2004
    Date of Patent: December 15, 2009
    Assignees: Eddelbuttel + Schneider GmbH, Phoenix Rubber Industrial Ltd.
    Inventors: Burghard Brink, Tibor Nagy, Andras Boros
  • Patent number: 7303213
    Abstract: A pipe structure comprising a length of a flexible pipe connected to an end fitting, the flexible pipe comprising an armour layer and an underlying pipe layer the armour layer, the underlying pipe layer having an outer surface around which armouring wires of an armouring layer are helically wound. The pipe structure provides a coupling between a flexible pipe comprising armouring wires and an end fitting, the coupling exerting a relatively low bending or flexure strain on the wires during normal operation of the flexible pipe. The transition path of an armouring wire between the flexible pipe and the end fitting comprises a straight-line-section between a wire-pipe-exit-point where the wire extends away from its underlying pipe layer and a straight-line-end-point on a support unit of the end fitting where the armouring wire in question has its first tangential point of contact.
    Type: Grant
    Filed: November 26, 2003
    Date of Patent: December 4, 2007
    Assignee: NKT Flexible I/S
    Inventor: Jan Rytter
  • Patent number: 7175208
    Abstract: Embodiments of a system and method for sealing an end of a flowline to an end fitting are disclosed. Such methods include providing an end fitting housing having a bore, wherein a portion of the bore has a tapered inner surface, inserting an open end of a flexible pipe into the bore, the flexible pipe having an external layer, to create a tapered annular space between the tapered inner surface and the external layer, and positioning a ring into the tapered annular space such that the ring radially contracts upon the external layer causing the external layer to deform to create a seal.
    Type: Grant
    Filed: February 27, 2003
    Date of Patent: February 13, 2007
    Assignee: Wellstream International Limited
    Inventor: John R. Belcher
  • Patent number: 7093860
    Abstract: A composite reinforced line pipe is manufactured by aligning first and second pipe segments each having a composite reinforcement wrapped circumferentially about a core, attaching the line pipes at a cut-back portion of their exposed core, wrapping a joint tape circumferentially about the cut-back portion, wrapping a resin reinforcement tape circumferentially about the joint tape, and curing the joint tape and resin reinforcement tape.
    Type: Grant
    Filed: April 7, 2004
    Date of Patent: August 22, 2006
    Assignee: NCF Industries, Inc.
    Inventor: Norman C. Fawley
  • Patent number: 7080858
    Abstract: A flexible seawater suction hose is configured to include a tube body of flexible rubber material reinforced by textile fabric and steel wire. Opposite ends of the tube body are terminated to a respective connector. A steel cable is incorporated within the tube body and extends longitudinally between the opposite tube body ends and attaches to the opposite end connectors. The flexible hose connects at one end to a rigid conduit by means of one connector and extends downward therefrom to a prescribed depth to facilitate extraction of seawater at a desired temperature.
    Type: Grant
    Filed: November 6, 2003
    Date of Patent: July 25, 2006
    Assignee: The Goodyear Tire & Rubber Company
    Inventors: Luis Roberto Flores Sanches, Waldir Pereira de Lucena, Mauricio Pinto Spaolonzi
  • Patent number: 7080860
    Abstract: In a hose with a corrugated metal tube, an axial leading end portion of the corrugated metal tube is configured as an extending portion so as to extend in an axial direction beyond a base portion of a socket fitting and be exposed out of an outer layer of the hose. The extending portion is clamped by an inner end surface of the base portion and an outer surface of a rigid insert pipe.
    Type: Grant
    Filed: July 15, 2003
    Date of Patent: July 25, 2006
    Assignee: Tokai Rubber Industries, Ltd.
    Inventors: Yuji Takagi, Norihiko Furuta, Tomohide Ito
  • Patent number: 7063358
    Abstract: A flexible connector comprises a length of corrugated tubing, a polymeric sleeve aligned with the distal end of the length of corrugated tubing, and a length of mesh tubing extending the entire length of corrugated tubing and over the polymeric sleeve. The distal end of the corrugated tubing, the polymeric sleeve, and the distal end of the length of mesh tubing are received in a sleeve which is formed integrally with an end piece. The sleeve is crimped into permanent retaining engagement with the length of corrugated tubing, the polymeric sleeve, and the length of mesh tubing. The end piece functions to secure the flexible connector into engagement with an adjacent component.
    Type: Grant
    Filed: January 24, 2005
    Date of Patent: June 20, 2006
    Assignee: Flex-ing, Inc.
    Inventor: Thomas L. Ingram
  • Patent number: 6938932
    Abstract: The invention relates to a hose comprising a steel coupling (1), in which the structural elements of the hose, namely the reinforcing plies (4), liner (12), carcass (7), and cover (9) are bonded. The main feature of the invention is that the reinforcing plies (4) of the hose, which are partially or entirely bonded with rubber, are embedded in the adhesive resin layer in the coupling device (1) assembled to the vulcanized hose.
    Type: Grant
    Filed: May 1, 2002
    Date of Patent: September 6, 2005
    Assignee: Phoenix Rubber Gumiipari Kft.
    Inventors: Istvan Grepaly, Tibor Nagy, Sandor Gelencser, Sandor Antal, Elemer Lantos, Gyula Beteri, Ferenc Koszo, Gyorgy Toth
  • Patent number: 6874542
    Abstract: A flexible hose with connect flange and a method for obtaining such a hose. The flexible hose (1) whereof the elastomer wall (1a) is reinforced by at least a main carcass (2) comprises flexible cables, including at least at one of its ends an annular flange (3), provided with longitudinal perforations, whereto is fixed at least the main carcass, the flange having an external diameter not greater than the external diameter of the hose wall proximate to the flange. The flange comprises perforations (34a) emerging on one or more indentation(s) (12) provided on the outer surface (9) of the hose wall and whereof the dimensions enable to house therein at least linking elements (15) externally accessible for abutting connection of pipes without interposition of an intermediate component between their respective flanges.
    Type: Grant
    Filed: November 13, 2001
    Date of Patent: April 5, 2005
    Assignee: Trelleborg Industrie
    Inventors: David Mayau, Guy Laurand
  • Patent number: 6742813
    Abstract: In a method of securing tensile reinforcement elements (7) of a pipeline or a cable to an end termination (18), the end termination is provided with a plurality of locking holes through which the reinforcement elements to be secured are pulled. Insertion of a spreader element into the reinforcement element results in a local cross-sectional increase in the tensile reinforcement. The reinforcement element cannot move freely through the locking hole because of the local cross-sectional increase, thereby achieving mechanical locking.
    Type: Grant
    Filed: April 26, 2002
    Date of Patent: June 1, 2004
    Assignee: NKT Flexibles I/S
    Inventor: Kristian Glejbol
  • Publication number: 20040066035
    Abstract: The invention concern a fixing end-fining for a flexible tubular pipe comprising an inner sealing sheath (2), a pressure vault consisting of a short-pitch helical winding (3) of a metal forming wire, an intermediate sheath (5) and at least a web of tensile long-pitch wound amour wire, (6) and an outer sealing sheath (78), the end-fitting comprising a staged part (112) capable of sliding into a staged cylindrical housing of the end-fitting and designed to ensure through two crimping elements (113, 116),the sealed fixing of the inner sheath and the intermediate sheath (5), screws (120) enabling the staged part (112) to be brought closer and to be fixed on the end-fitting.
    Type: Application
    Filed: June 24, 2003
    Publication date: April 8, 2004
    Inventors: Eric Buon, Hugues Berton
  • Publication number: 20040036280
    Abstract: Embodiments of a system and method for sealing an end of a flowline to an end fitting are disclosed. Such methods include providing an end fitting housing having a bore, wherein a portion of the bore has a tapered inner surface, inserting an open end of a flexible pipe into the bore, the flexible pipe having an external layer, to create a tapered annular space between the tapered inner surface and the external layer, and positioning a ring into the tapered annular space such that the ring radially contracts upon the external layer causing the external layer to deform to create a seal.
    Type: Application
    Filed: February 27, 2003
    Publication date: February 26, 2004
    Applicant: WELLSTREAM INTERNATIONAL LIMITED
    Inventor: John R. Belcher
  • Patent number: 6592153
    Abstract: An end fitting in which to receive a flexible pipe end to be joined includes an annular seal unit comprised of a resilient elastomeric composition contained in a tapered rigid housing ring force fit in a tapered recess of a surrounding component so as to engage the outer surface of the received pipe end.
    Type: Grant
    Filed: October 12, 2000
    Date of Patent: July 15, 2003
    Assignee: Wellstream, Inc.
    Inventor: John R. Belcher
  • Patent number: 6494497
    Abstract: A diffusion-tight fluid conduit for hydrocarbon-containing fluids has a corrugated pipe of corrosion-resistant metal with a corrugated inner side and a corrugated outer side, wherein the outer side is exposed. An inner pipe of plastic material is arranged inside the corrugated pipe and has a smooth inner side and a smooth outer side. A first coupling member is seal-tightly connected by material bonding to a first end of the corrugated pipe.
    Type: Grant
    Filed: November 8, 2000
    Date of Patent: December 17, 2002
    Assignee: Rasmussen GmbH
    Inventor: Janos Kertesz
  • Patent number: 6412825
    Abstract: An assembly of an end-fitting and a flexible pressure pipe which is of a non-bonded structure and comprises a number of layers including at least one layer (5) having a number of helically wound flat metallic tensile armour wires with end parts which, in the assembled condition, are embedded in an anchor consisting of a casting material such as epoxy which is injected into a cavity formed in the end-fitting. The flat wire end parts have at least one twist turning generally around the centerline of the wire. Said twists lock the tensile armor wires firmly in the anchor and therefore provide a greater resistance to axial tensile loads acting on the assembly than has been known before. Furthermore the joint is a simple and cheap structure and can be made in situ.
    Type: Grant
    Filed: June 30, 2000
    Date of Patent: July 2, 2002
    Assignee: NKT Flexibles I/S
    Inventor: Krystyna Izabella Langkjaer
  • Patent number: 6386594
    Abstract: A connection element is provided and a process for connecting composite hoses is conducted in a weld-free, solder-free, as well as site-independent manner, which nonetheless leads to an outside pressure-tight interface. For this purpose, a composite hose having a spiral wound metal hose surrounded by an elastic outer casing is screwed onto a supporting sleeve having a terminal outer thread. The metal tube is then compressed axially so that the outer casing is exposed projecting beyond the end of the metal hose and is preferably fastened by pressing on a sealing surface arranged behind the outer thread. The pressing of the outer casing here does not impair the functional capacity of the wound metal hose, but nevertheless protects it from the surrounding medium, for example salt water.
    Type: Grant
    Filed: March 27, 2000
    Date of Patent: May 14, 2002
    Assignee: Witzenmann GmbH Metallschlauch-Fabrik Pforzheim
    Inventors: Peter Schüttler, Armin Winter