Metal And Elastomeric Layers Patents (Class 285/222.4)
  • Patent number: 11927286
    Abstract: A hose assembly includes a hose, a connector body, and a collar. The connector body has an outer end portion defining a fluid connector, an inner end defining a nose portion received in an inner bore of the hose end portion, and an intermediate portion including first and second annular flanges spaced apart to define a dog lock groove. The collar includes an outer end portion defining an inner radial dog lock received in the dog lock groove, an annular step portion extending radially outward of and axially inward of the dog lock in axial alignment with the first annular flange, and an inner end portion extending radially outward of and axially inward from the step portion, the inner end portion being in radial compression against an outer surface of the hose end portion.
    Type: Grant
    Filed: November 30, 2022
    Date of Patent: March 12, 2024
    Assignee: SWAGELOK COMPANY
    Inventors: Daniel Gutmann, Stephen J. Zaborszki, Corey Pasheilich, Angela Rodriguez
  • Patent number: 11808990
    Abstract: A connection arrangement is provided for connecting an armored cable to a connection piece. The arrangement has a ferrule for fitting onto the end of the armored cable, that has an abutment flange, a washer and a threaded region. The threaded region has at least a portion threaded according to a first thread standard. A lock nut is configured to fit over the armored cable, and to connect with a nut thread on the connection piece. The lock nut and the connection piece are configured to compress the ferrule therebetween forming a watertight connection. An armor of the armored cable has a least a portion of the armor threaded to match the first thread standard.
    Type: Grant
    Filed: February 10, 2022
    Date of Patent: November 7, 2023
    Assignee: BERK-TEK LLC
    Inventor: Paul Michael Good
  • Patent number: 11761563
    Abstract: An improved end connector for a high-pressure reinforced hose that is subjected to high frequency of pressure cycles and that provides for a low compression deformation of the reinforced hose is discussed. This unique end connector has a stem and ferrule that includes a gripper or cable lock region near a coupler, or outboard end and a substantially smooth length on an outer diameter (OD) of the stem and ferrule that extends from about the gripper region to a hose receiving, or inboard, end.
    Type: Grant
    Filed: March 11, 2020
    Date of Patent: September 19, 2023
    Inventor: Gardner T. Baldwin
  • Patent number: 11435017
    Abstract: A device for connecting a tubular element such as a hose or pipe to a part of a hydraulic or pneumatic system includes: a body having a connection end and a tubular element insertion end, the body having a cylindrical channel extending from the connection end to the tubular element insertion end, the connection end being connecting to the part of the hydraulic or pneumatic system, the cylindrical channel including a first part and a second part, the first part being arranged in the tubular element insertion end and the second part being arranged in the connection end. The tubular element insertion end includes at a middle section a recess extending radially from the first part of the cylindrical channel, along an entire circumference, the recess bordering the second part of the cylindrical channel. The tubular element insertion end includes at least one bore.
    Type: Grant
    Filed: January 24, 2020
    Date of Patent: September 6, 2022
    Assignee: Danfoss Power Solutions II Technology A/S
    Inventors: Hasan Barca Donmez, Erhan Aptiogullari, Recep Muco, Salih Karayagiz
  • Patent number: 11402038
    Abstract: An apparatus for terminating a composite pipe has a pipe having a liner layer surrounded by a composite layer and a pipe end. The liner layer has an extension piece which extends axially beyond the composite layer at the pipe end; a connector; an annular transition element located between the pipe end and the connector, the annular transition element having an exterior surface; and compression means.
    Type: Grant
    Filed: June 20, 2018
    Date of Patent: August 2, 2022
    Assignee: Magma Global Limited
    Inventors: David Charlesworth, Luke Rumsey
  • Patent number: 11300237
    Abstract: An assembly comprising an end-fitting and an unbonded flexible pipe comprising several layers. The unbonded flexible pipe has an end-part entering the end-fitting at the front end and the layers of the unbonded flexible pipe being terminated in the end-fitting. The unbonded flexible pipe further comprises a first electrically conductive layer and a second electrically conductive layer, where the first electrically conductive layer is electrically insulated from the second electrically conductive layer. The end-fitting comprises a first electric zone electrically connected with the first electrically conductive layer, and a second electric zone electrically connected with the second electrically conductive layer, the first electric zone is electrically separated from the second electric zone, and the end-fitting comprises a third electric zone, the third electric zone being electrically separated from first electric zone and the second electric zone.
    Type: Grant
    Filed: February 19, 2018
    Date of Patent: April 12, 2022
    Assignee: NATIONAL OILWELL VARCO DENMARK I/S
    Inventors: Thorsten Holst, Tom Larsen, Anders Straarup
  • Patent number: 11009156
    Abstract: A metal to composite tube joint including an elongated interior fitting constructed with an exterior barrel, reduced in exterior diameter to form a distally facing annular shoulder and then projecting still further distally to form an interior sleeve having a radially outwardly facing bonding surface. An elongated metal outer sleeve formed proximally with a collar constructed for receipt over the barrel and increased in interior diameter and projecting distally to form an exterior sleeve having a radially inwardly facing bonding surface cooperating with the first bonding surface to form an annulus receiving an extremity of a composite tube and a bond bonding the extremity of the tube to the bonding surfaces.
    Type: Grant
    Filed: May 18, 2017
    Date of Patent: May 18, 2021
    Inventors: James C. Leslie, James C. Leslie, II, James Heard, Liem V. Truong, Marvin Josephson
  • Patent number: 11009155
    Abstract: This disclosure relates to a hose, such as a fire zone hose, that can include an inner tube, a thermal protection sleeve and a braided member. The inner tube can form a flow path for conveying fluid. The thermal protection sleeve can be disposed around the inner tube. The thermal protection sleeve can include an inner surface and an outer surface such that the inner tube is positioned inwards from an inner surface of the thermal protection sleeve. The braided member can be disposed around the thermal protection sleeve, such that the braided member deforms the outer surface of the thermal protection sleeve. Additionally, the hose can include a braid retainer. The braid retainer can be disposed around an end of the braided member to secure the braided member to the thermal protection sleeve.
    Type: Grant
    Filed: April 25, 2017
    Date of Patent: May 18, 2021
    Assignee: Eaton Intelligent Power Limited
    Inventors: Patrick Alan Schilling, Justin Troy Straley, Megan Sara Simpson
  • Patent number: 10533687
    Abstract: A ferrule for mounting a hose to a hose adapter, the ferrule including a substantially cylindrical hollow structure extending between a proximal end and a distal end, a flange at the proximal end of the ferrule that is configured to be connected to the hose adapter, and either one or more openings or compressible grooves formed on the flange that are configured to be compressed upon either swaging or crimping the flange to the hose adapter.
    Type: Grant
    Filed: June 13, 2016
    Date of Patent: January 14, 2020
    Assignee: CAMPBELL FITTINGS, INC.
    Inventors: Randi Kremer, Bruce Beck, Matthew Golemboski, Matthew Hontz
  • Patent number: 9829131
    Abstract: A pipe coupling construction which can be used for coupling of a high-pressure pipe includes an inner bush of a non-metallic material and an outer bush, which bushes in axial section have parts which mesh with each other in order to transmit axial forces. The inner bush can be fused or adhered to an outer cover layer of the pipe. The coupling has a metal sleeve construction. The outer bush has an outer bush protruding end which protrudes with respect to the inner bush and the metal sleeve construction is at least partially located within the outer bush protruding end. The metal sleeve construction and outer bush in axial section have parts which mesh with each other.
    Type: Grant
    Filed: May 1, 2015
    Date of Patent: November 28, 2017
    Assignee: Pipelife Nederland B.V.
    Inventors: Peter Jeroen Cloos, Jan Van Meegdenburg
  • Patent number: 9816651
    Abstract: A swage fitted end connector for high pressure large diameter reinforced flexible rubber hose utilizing sine-wave locking of the reinforcement and particularly suited to the petrochemical and drilling industries. Two embodiments of the connector for use with wire reinforced thin internal tube hose are disclosed: one with a diameter of 3-inches and for burst pressures up to 20,000 psi and the other for a diameter of 5-inches and for burst pressures up to 18,000 psi. All of the connectors will withstand the rated burst pressure of the hose without pumping off or leaking thus any hose that utilizes the device will fail before the connector pops off the hose. The connectors are designed to meet or exceed the new API temperature ranges and new API flexible specification levels which became effective in October 2006.
    Type: Grant
    Filed: November 19, 2015
    Date of Patent: November 14, 2017
    Assignee: George Myer Company, Inc.
    Inventors: Gardner T. Baldwin, Victor J. DeLeon, Larry M. Sweeney
  • Patent number: 9310000
    Abstract: A retractable pipe structure may include an inner tube, an outer tube, two connectors and two locking rings. In one embodiment, the inner tube is cover by the outer tube and the connectors are disposed at both ends of the inner tube and connecting portions are inserted into both ends of the inner tube and the tightening unit is used to tighten and secure each end. When the inner tube along with the outer tube are connecting with the connecting portion of the connector and the tightening unit is disposed outside the outer tube, the restricting ring is disposed outside the outer tube and used to cover the connecting portion along with the locking ring. When a restricting ring is squeezed by the locking ring, an engaging unit is disposed outside the restricting ring to prevent the inner tube and outer tube from directly contacting with the engaging unit.
    Type: Grant
    Filed: April 28, 2014
    Date of Patent: April 12, 2016
    Assignee: Newbud Industrial Corp.
    Inventor: Tsang-Fu Liang
  • Patent number: 9212771
    Abstract: An swage fitted end connector for high pressure large diameter reinforced flexible rubber hose utilizing sine-wave locking of the reinforcement and particularly suited to the petrochemical and drilling industries. Two embodiments of the connector for use with wire reinforced thin internal tube hose are disclosed: one with a diameter of 3-inches and for burst pressures up to 20,000 psi and the other for a diameter of 5-inches and for burst pressures up to 18,000 psi. All of the connectors will withstand the rated burst pressure of the hose without pumping off or leaking thus any hose that utilizes the device will fail before the connector pops off the hose. The connectors are designed to meet or exceed the new API temperature ranges and new API flexible specification levels which became effective in October 2006.
    Type: Grant
    Filed: February 23, 2010
    Date of Patent: December 15, 2015
    Assignee: George Myer Company, Inc.
    Inventors: Gardner T. Baldwin, Larry M. Sweeney
  • Patent number: 9169825
    Abstract: A device for assembling sections of wind-turbine blades provided with casings, including at least one tie including a first portion and a second portion, the first portion being a portion for assembly with a casing of a first section and the second portion being a portion for mounting with a complementary tie supported by a casing of a second section, wherein the first portion includes at least one composite/metal shear link provided with a continuous fitting element on at least one surface of the casing which receives one end of the aformentioned surface of the casing, provided with attachment pins passing through the fitting and the end of the surface.
    Type: Grant
    Filed: July 6, 2010
    Date of Patent: October 27, 2015
    Assignee: ASTRIUM SAS
    Inventors: Marcel Auberon, Nicolas Petermann
  • Patent number: 8360478
    Abstract: A hose fitting assembly is provided, wherein the components are operably engaged with a length of hose to form a sacrificial construction. An end fitting having an insertion stem is disposed within a portion of the hose, wherein a clamping sleeve receiving a length of the hose threadingly engages the end fitting. A swaging collar is slide along the hose to threadingly engage the clamping sleeve, such that complete threaded engagement of the swaging collar and the clamping sleeve circumferentially compress and deform a portion of the clamping sleeve to clamp a portion of the hose intermediate the clamping sleeve and the insertion stem, and partially deformed threads on at least one of the clamping sleeve and the swaging collar. The hose fitting assembly can cooperatively engage a flexible high pressure metal braided hose, wherein the metal braid is formed of a less than full tensile strength steel, such as half hard stainless steel.
    Type: Grant
    Filed: March 2, 2010
    Date of Patent: January 29, 2013
    Assignee: Magnum Shielding Corporation
    Inventors: Scott L. Hurwitz, Chad S. Conklin, Mark L. Frisicano
  • 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: 8112863
    Abstract: A method and apparatus for securing wires of at least one armour layer of a portion of flexible pipe body in an end fitting is disclosed. The method comprises the steps of bending wires of at least one armour layer away from an axis of the flexible pipe body at a predetermined location, locating each wire of the armour layer in a respective groove formed in a contact surface of at least one of an inner collar member and an outer collar member of the end fitting and urging contact surfaces of the inner collar member and the outer collar member together to thereby lock wires of the armour layer in a fixed position at said predetermined location in the end fitting.
    Type: Grant
    Filed: April 20, 2007
    Date of Patent: February 14, 2012
    Assignee: Wellstream International Limited
    Inventors: Tony Eccleston, George Karabelas, Zhimin Tan
  • Patent number: 8104797
    Abstract: A method and apparatus are disclosed for providing an end fitting for a flexible pipe. The apparatus comprises an end fitting body having an open mouth for receiving an open end of a portion of flexible pipe body and an inner collar member to which the end fitting body is securable. The inner collar member includes a collar body portion and a neck portion extending away from the collar body portion. When the end fitting body is secured to the collar member the neck portion of the collar member extends in an axial direction away from the end fitting body to a region proximate to where at least one armour wire layer of the flexible pipe body is located.
    Type: Grant
    Filed: April 23, 2007
    Date of Patent: January 31, 2012
    Assignee: Wellstream International Limited
    Inventors: Tony Eccleston, George Karabelas, Zhimin Tan
  • Patent number: 8096589
    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: Grant
    Filed: September 13, 2007
    Date of Patent: January 17, 2012
    Assignee: Technip France
    Inventors: Roberto Jourdan De Aquino, Jean-François Langui, Jucimar Coelho Moza, Gaspar Cunha Xavier
  • Patent number: 8056934
    Abstract: In the marine hose of the present invention, protruded parts are provided at each axial direction end of the axial direction ends of the hose bodies, each axial direction end is located at both sides in the axial direction of the connection portion which is provided with limit mechanism. By this, when the marine hose is wound up to the reel, the protruded parts of the hose bodies contact the outer surface of the reel, the outer surface of the limit mechanism does not contact the outer surface of the reel. Thus, large amount of the bending force is not added to the limit mechanism.
    Type: Grant
    Filed: February 29, 2008
    Date of Patent: November 15, 2011
    Assignee: The Yokohama Rubber Co., Ltd.
    Inventor: Syunichi Ono
  • 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
  • Patent number: 7712792
    Abstract: An end fitting for terminating an end of a hose including a tubular body of flexible material arranged between inner and outer gripping members, wherein the end fitting includes: an inner member adapted to be disposed at least partially within the hose; a sealing member adapted to seal at least part of the tubular body fully around the circumference between the sealing member and the inner member; and a separate load transfer member adapted to transfer axial loads between the hose and the inner member in such a manner that said axial loads are diverted around the sealing member in order to reduce, or eliminate, the axial load on the hose between the sealing member and the inner member, and wherein the sealing member is adapted to seal against the tubular body independently of the application of axial loads between the hose and the inner member.
    Type: Grant
    Filed: June 27, 2006
    Date of Patent: May 11, 2010
    Assignee: BHP Billiton Petroleum Pty, Limited
    Inventors: Raymond Nicholas Burke, Eric Joseph Davis, Gerard Anthony Hall, Matthew Vernon Ridolfi, Simon Peter Alexander Thorp, Joel Aron Witz
  • Publication number: 20090250925
    Abstract: A method and apparatus are disclosed for providing an end fitting for a flexible pipe. The apparatus comprises an end fitting body having an open mouth for receiving an open end of a portion of flexible pipe body and an inner collar member to which the end fitting body is securable. The inner collar member includes a collar body portion and a neck portion extending away from the collar body portion. When the end fitting body is secured to the collar member the neck portion of the collar member extends in an axial direction away from the end fitting body to a region proximate to where at least one armour wire layer of the flexible pipe body is located.
    Type: Application
    Filed: April 23, 2007
    Publication date: October 8, 2009
    Inventors: Tony Eccleston, George Karabelas, Zhimin Tan
  • Publication number: 20090091128
    Abstract: The present invention relates to a connecting construction between a pipe and a coupling, which pipe comprises an internal lining and a fibre reinforcement layer surrounding the lining. The coupling has a coupling piece having an external clamping surface, a sleeve which surrounds the coupling piece and has an internal clamping surface which is shaped in accordance with the external clamping surface of the coupling piece, and also a coupling end interacting with the coupling piece. The fibre reinforcement layer is secured between the coupling piece and the sleeve. The sleeve has a mount which is remote from the coupling end and the internal support surface of which extends so as to widen in the direction away from the coupling end.
    Type: Application
    Filed: October 2, 2008
    Publication date: April 9, 2009
    Applicant: PIPELIFE NEDERLAND B.V.
    Inventors: Peter Jeroen CLOOS, Lambertus Gerrit Peter Dalmolen
  • Patent number: 7393021
    Abstract: A duct system generally comprises a flexible duct; a fitting having an end including either an in-turned circumferential lip or a plurality of circumferentially arranged tabs; a collar having a first end and a second end, the first end being adapted to be secured to the flexible duct, and the second end being adapted to be secured to the end of the fitting, such that, if the second end of the fitting includes an in-turned circumferential lip, the second end of the collar includes a plurality of circumferentially arranged tabs adapted to engage the in-turned circumferential lip, and if the end of the fitting includes a plurality of circumferentially arranged tabs, the second end of the collar includes an in-turned circumferential lip adapted to engage the plurality of circumferentially arranged tabs; and at least one gasket for forming a seal between the fitting and the collar.
    Type: Grant
    Filed: November 15, 2005
    Date of Patent: July 1, 2008
    Inventor: Serge Lukjan
  • Patent number: 7204524
    Abstract: An end fitting, a pipe assembly and a method of assembling a pipe assembly according to which an end fitting is provided with a bore and at least one raised portion is provided on the surface of the housing of the end fitting defining the bore. When an end portion of a pipe is inserted in the bore the raised portion engages the corresponding outer surface of the pipe to provide a seal.
    Type: Grant
    Filed: March 24, 2004
    Date of Patent: April 17, 2007
    Assignee: Wellstream International Limited
    Inventor: Tony Eccleston
  • Patent number: 7159905
    Abstract: A material feed hose has a multilayered hose with an inflow end, an intermediate length, and an outflow end. The hose has an an armored crush-resistant outer layer and a heating layer disposed between an inner layer and an intermediate insulating layer. A pair of hollow tubular fittings have a beveled inflow to limit the amount of material which is out of the flow path as the material moves through the hose. The fittings have an associated pair of hose clamps.
    Type: Grant
    Filed: December 1, 2003
    Date of Patent: January 9, 2007
    Inventors: Patricia A. Stark, Jon Zook
  • Patent number: 7144048
    Abstract: A composite marine riser may be formed, in one embodiment, of a pair of threaded metallic sections having threaded external surfaces. The threaded external surfaces may taper from a larger to a smaller diameter. The composite material may be formed over the threaded external surfaces, which surfaces serve to transfer force from the metallic sections to the composite material.
    Type: Grant
    Filed: May 5, 2004
    Date of Patent: December 5, 2006
    Assignee: Stena Drilling Ltd.
    Inventor: Gavin Humphreys
  • Patent number: 6902208
    Abstract: A method of forming a gas impermeable joint in a fluid system includes: providing a tube having a metallic barrier layer disposed between an inner plastic layer and an outer plastic layer; forcing at least one of the inner plastic layer and the outer plastic layer into contact with a plastic surface of a component; and welding the at least one of the inner plastic layer and the outer plastic layer with the plastic surface to form the gas impermeable joint. The welding may include: spin welding, hot plate welding, vibration welding, and ultrasonic welding. The metallic barrier layer extends substantially to the component, thus improving the gas impermeability of the joint between the tube and the component.
    Type: Grant
    Filed: December 10, 2003
    Date of Patent: June 7, 2005
    Assignee: Dayco Product, LLC
    Inventors: John E. Mobley, Michael O. Thurston, Christopher W. Smith
  • 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: 6866302
    Abstract: In a hose with corrugated metal tube, a connecting pipe is formed with a tapered inner surface in a tip end portion thereof a corrugated metal tube is formed with a flared portion flaring as to correspond to the tapered inner surface of the connecting pipe, and a mating pipe is formed with a tapered outer surface. The hose with corrugated metal tube is connected to the mating pipe by a cap nut so that the tapered inner space of the connecting pipe abuts the tapered outer surface of the mating pipe with the flared portion therebetween.
    Type: Grant
    Filed: July 23, 2003
    Date of Patent: March 15, 2005
    Assignee: Tokai Rubber Industries, Ltd.
    Inventor: Norihiko Furata
  • Patent number: 6851723
    Abstract: Connection structure for connecting a piping used in automobiles or the like to a ring joint for providing highly reliable gas-tightness. The ring joint includes a ring joint body including a fitting hole for an eyebolt, the fitting hole being piercingly formed in an axial core portion of the ring joint body and in continuation from an annular recessed groove formed inside the ring joint body, and a flow path extending in a direction perpendicular to and intersecting with the fitting hole. A branch pipe is formed as a unitary body with the ring joint body and arranged in a direction perpendicular to and intersecting with the eyebolt. A piping for insertion into the branch pipe has an outer peripheral surface covered with resin, and the resin of the outer peripheral surface of the piping and an inner peripheral surface of the branch pipe are fixedly welded to one another.
    Type: Grant
    Filed: September 24, 2002
    Date of Patent: February 8, 2005
    Assignee: Usui Kokusai Sangyo Kaisha, Ltd.
    Inventors: Masayoshi Usui, Shu Yotsumoto
  • Patent number: 6773038
    Abstract: A hydraulic duct for feeding fluid at high pressure comprising a metal tube, a flexible tube of elastic material and a connector is provided with at least one main projection and a plurality of auxiliary projections, and the main projection is bounded on the side of the flexible tube by a conical surface. The flexible tube is fitted on the connector and is enclosed by an aluminium bell of a profile which can be coupled with the projections of the connector and is adapted to prevent the flexible tube from slipping off and to ensure fluid-tightness. The bell has an end rim which abuts against the conical portion of the main projection which faces towards the flexible tube.
    Type: Grant
    Filed: October 4, 2002
    Date of Patent: August 10, 2004
    Assignee: Dayco Fluid Technologies S.p.A.
    Inventors: Antonio Villano, Mariofelice Zanardi
  • 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
  • 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