WO1997032710A1 - Composant de cable - Google Patents

Composant de cable Download PDF

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Publication number
WO1997032710A1
WO1997032710A1 PCT/AU1997/000127 AU9700127W WO9732710A1 WO 1997032710 A1 WO1997032710 A1 WO 1997032710A1 AU 9700127 W AU9700127 W AU 9700127W WO 9732710 A1 WO9732710 A1 WO 9732710A1
Authority
WO
WIPO (PCT)
Prior art keywords
strips
sub
rod
cable
optical fibre
Prior art date
Application number
PCT/AU1997/000127
Other languages
English (en)
Inventor
Alan Stringer
Original Assignee
Pacific Dunlop Limited
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Pacific Dunlop Limited filed Critical Pacific Dunlop Limited
Priority to AU18623/97A priority Critical patent/AU1862397A/en
Publication of WO1997032710A1 publication Critical patent/WO1997032710A1/fr

Links

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/44—Mechanical structures for providing tensile strength and external protection for fibres, e.g. optical transmission cables
    • G02B6/4401—Optical cables
    • G02B6/4429—Means specially adapted for strengthening or protecting the cables
    • G02B6/4434—Central member to take up tensile loads
    • 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
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/001—Combinations of extrusion moulding with other shaping operations
    • 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
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
    • B29C48/06—Rod-shaped
    • 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
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
    • B29C48/12—Articles with an irregular circumference when viewed in cross-section, e.g. window profiles
    • 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
    • B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
    • B29C70/04—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising reinforcements only, e.g. self-reinforcing plastics
    • B29C70/28—Shaping operations therefor
    • B29C70/40—Shaping or impregnating by compression not applied
    • B29C70/50—Shaping or impregnating by compression not applied for producing articles of indefinite length, e.g. prepregs, sheet moulding compounds [SMC] or cross moulding compounds [XMC]
    • B29C70/52—Pultrusion, i.e. forming and compressing by continuously pulling through a die
    • D—TEXTILES; PAPER
    • D07—ROPES; CABLES OTHER THAN ELECTRIC
    • D07B—ROPES OR CABLES IN GENERAL
    • D07B1/00—Constructional features of ropes or cables
    • D07B1/02—Ropes built-up from fibrous or filamentary material, e.g. of vegetable origin, of animal origin, regenerated cellulose, plastics
    • D07B1/04—Ropes built-up from fibrous or filamentary material, e.g. of vegetable origin, of animal origin, regenerated cellulose, plastics with a core of fibres or filaments arranged parallel to the centre line
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/44—Mechanical structures for providing tensile strength and external protection for fibres, e.g. optical transmission cables
    • G02B6/4401—Optical cables
    • G02B6/4429—Means specially adapted for strengthening or protecting the cables
    • G02B6/443—Protective covering
    • G02B6/4432—Protective covering with fibre reinforcements
    • 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
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/001—Combinations of extrusion moulding with other shaping operations
    • B29C48/0018—Combinations of extrusion moulding with other shaping operations combined with shaping by orienting, stretching or shrinking, e.g. film blowing
    • 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
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
    • B29C48/05—Filamentary, e.g. strands
    • 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
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
    • B29C48/09—Articles with cross-sections having partially or fully enclosed cavities, e.g. pipes or channels
    • 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
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
    • B29C48/09—Articles with cross-sections having partially or fully enclosed cavities, e.g. pipes or channels
    • B29C48/10—Articles with cross-sections having partially or fully enclosed cavities, e.g. pipes or channels flexible, e.g. blown foils
    • 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
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/15—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor incorporating preformed parts or layers, e.g. extrusion moulding around inserts
    • D—TEXTILES; PAPER
    • D07—ROPES; CABLES OTHER THAN ELECTRIC
    • D07B—ROPES OR CABLES IN GENERAL
    • D07B2201/00—Ropes or cables
    • D07B2201/20—Rope or cable components
    • D07B2201/2095—Auxiliary components, e.g. electric conductors or light guides
    • D07B2201/2096—Light guides

Definitions

  • This invention relates to a method of producing reinforcement for cables.
  • the invention also includes a method of producing cable.
  • Non-metallic fibre optic cables are used in a variety of situations and frequently comprise a plurality of tubes that contain a loose bundle of optical fibres.
  • the tubes are wound onto a central fibre reinforced plastics (FRP) rod that operates as a strength member.
  • the tubes are then encased in an outer sheath.
  • the FRP rod is usually of circular cross-section and is viewed as one of the more expensive components of the cable.
  • one or perhaps two tubes are used to contain the bundles of fibre optical cables.
  • One way of producing cables of this kind is to wind the tubes around an FRP rod and fill the gaps around the circumference of the rod with spacer tubes or fillers. This construction is however considered unnecessarily bulky since much of the cable is constituted by filler material. Cable of this kind is also viewed as unnecessarily expensive.
  • An alternative means of producing a cable that has one or two tubes containing optical fibres is to reinforce the tube or tubes on either side with a pair of small FRP rods. The tubes can either be wound onto the rods or the rods wound onto the tubes.
  • This type of cable requires the need for FRP rods of smaller cross-section than would be the cross- section of a rod that is used centrally to support a plurality of tubes. It has been discovered that the cost of the FRP rods is more dependent on the manufacturing process than the material and thus simply reducing the cross-sectional area of the rod does not substantially reduce its cost. Thus, in a cable where there is a need to use two FRP rods of smaller diameter to reinforce a single optical fibre tube, the cost of the rods is effectively almost twice the expense that would be incurred in using a single larger rod centrally of the fibre optical tubes.
  • a method of manufacturing reinforcing rod from plastics comprising extruding or pulltruding from a die cavity a plurality of sub-strips, and bonding the sub-strips together to produce a single strand of rod.
  • the rod is preferably fibre reinforced plastics and the sub-strips are usually identically shaped.
  • the sub-strips are cured and then subjected to a bonding agent prior to bonding the sub- strips together to produce a single strand of rod.
  • the single strand of rod is wound onto a take- up roll.
  • a method of producing an optical fibre cable comprises de-bonding rod of the kind described above, separating the rod into a plurality of sub-strips and adding the sub-strips to an optical fibre core to form a cable.
  • an optical fibre cable made from the method described above.
  • Figure 1 is a schematic side on view of the process line for manufacturing fibre reinforced plastics rod
  • Figures 2a to f are cross-sectional views of fibre reinforced rod sub-strips manufactured according to the process of Figure 1,
  • Figure 3 is a schematic process line illustrating the manufacture of cable using the product manufactured in Figure 1
  • Figure 4 is a cross-sectional view of the cable.
  • FIG 1 is a schematic illustration of a process line for manufacturing fibre reinforced rod.
  • the process line starts with a multi-die cavity 10, each cavity is split to produce a plurality of identically cross- sectionally shaped sub-strips 11, 12 of fibre reinforced plastics rod.
  • Options for the cross-sectional shape of the rod sub-strips are shown in Figure 2.
  • the rod leaves each die in the form of semi-circular sub-strips 11 and 12.
  • the sub-strips 13, 14 form a hollow centre and in Figure 2b the rod has been split into four sub-strips 15, 16, 17, 18.
  • each sub-strip is identical, it is understood that there could also be non-uniform sub-strips; for instance by also forming a central sub-strip in Figure 2c of circular cross- section.
  • Other section of sub-strips 21, 22, 23 are shown in Figures 2d, e and f.
  • the die cavity splits the rod into the desired number of sub-strips so that on reassembly, a single rod of axial symmetry is produced.
  • the split sub-strips 11, 12 of rod are then passed through a curing and/or coating station 20 during which the rod may be heat cured through a variety of means known to those skilled in this art.
  • the rod is of thermo-plastics, it is understood that the curing step would not be necessary. It is also understood that where necessary the rod could be subjected to suitable coating process that would also be well known to those skilled in this art. Polyethylene co-polymers are common coating materials.
  • a bonding agent in the form of a hot melt adhesive is applied to the surfaces of each portion of the rod sub-strip that would contact the surface of an adjacent sub-strip of the rod should the sub-strips be put together.
  • the rods are pulled through a combination station 30 which includes apparatus to cause the sub-strips of rod to be pressed into abutting contact to form a single rod.
  • the apparatus would also include means to wipe off excess adhesives.
  • the single rod then passes through a t ⁇ n ⁇ ioning device 40 to be wound onto a take up drum 50.
  • FIG. 3 illustrates a schematic production line for a fibre optical cable.
  • the cable 51 in completed form is shown in Figure 4 and comprises a single tube 60 containing a bundle of loosely held optical fibres 66.
  • the tube is positioned centrally of a pair of diametrically opposed reinforcing rods 61, 62 that are wound onto the tube in a loose lay and the whole assembly is coated in an outer sheath 65 of plastics material.
  • the reinforcing members 61 and 62 are of semi-circular cross-section and are manufactured of fibre reinforced rod produced by the method shown in Figure 1.
  • the drum of composite sub- strips of FRP is wound into the cable manufacturing process 80 through a de-bonding or separation phase 70 during which the rod is subjected to heat which causes the hot melt adhesive to melt. Alternatively, the sub-strips can be simply pulled apart.
  • the equipment is also designed to cause the sub-strips that make up the rod to be separated into separate strands which are then fed into the cable processing equipment 80 to produce an optical fibre cable 51 that is shown at the end of the line.
  • the importance of this manufacturing technique is that by feeding a single composite rod into the line and de-bonding that rod into identical sub-strips of equal length, the alignment and orientation of the sub-strips relative to the cable can be carefully controlled so that the reinforced sub-strips can then be wound onto the optical fibre to produce a final cable without the need for complicated, sophisticated and expensive machinery to re- align, control and re-position the reinforcing rods that make up the cable.
  • a hot melt adhesive is used to combine the FRP sub-strips into a single rod and then heat is used to release the hot melt adhesive during the separation phase
  • other techniques may be used to complete both the combination and separation phases.
  • Other adhesives and techniques such as ultrasonics are all possible ways to conduct the combination and separation phases.
  • a component can be introduced to the plastics before the extrusion or pulltruding to ensure that the sub-strips can be bonded together.
  • the rod may also comprise unreinforced plastics.
  • the split cavity die and combination phase of the production line ensures that a plurality of identically shaped reinforcing sub- strips can be produced at about the same expense as producing a single circular section.
  • the splitting of a single circular section into components parts is a considerably cheaper option than manufacturing separate FRP rods which then have to be wound onto the optical fibre core to form the cable.
  • a further advantage emanates from the fact that since the single rod is fed into a separation phase and then applied to the cable, it is a much simpler matter to orientate and align the rod relative to the remaining parts of the cable than would be the case where individual rods are fed from drums into the cable manufacturing line.
  • a further advantage that flows from the processes described above is that with careful selection of cavity dies it is possible to provide FRP rods of a variety of cross-sections and these cross-sections may vary depending on the shape and configuration of the cable.
  • This process provides the manufacturers of reinforcing rods of plastics, especially fibre reinforced plastics, with a cost effective means of providing a wide range of rods of shapes or configurations that can be used in conventional cable manufacturing equipment.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Chemical & Material Sciences (AREA)
  • Composite Materials (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)

Abstract

Procédé de fabrication d'une tige de renforcement de plastique, consistant à extruder ou à étirer dans une cavité de filière une pluralité de sous-bandes, et à lier les sous-bandes ensemble pour produire une tige d'un seul toron.
PCT/AU1997/000127 1996-03-04 1997-03-03 Composant de cable WO1997032710A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU18623/97A AU1862397A (en) 1996-03-04 1997-03-03 Cable componentry

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AUPN8435 1996-03-04
AUPN8435A AUPN843596A0 (en) 1996-03-04 1996-03-04 Cable componentry

Publications (1)

Publication Number Publication Date
WO1997032710A1 true WO1997032710A1 (fr) 1997-09-12

Family

ID=3792747

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/AU1997/000127 WO1997032710A1 (fr) 1996-03-04 1997-03-03 Composant de cable

Country Status (4)

Country Link
AU (1) AUPN843596A0 (fr)
ID (1) ID16449A (fr)
WO (1) WO1997032710A1 (fr)
ZA (1) ZA971762B (fr)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2764709A1 (fr) * 1997-06-16 1998-12-18 Alsthom Cge Alcatel Cable a fibres optiques thermoplastique
EP0968809A1 (fr) * 1998-07-01 2000-01-05 Alcatel Gaine renforcée continue et composite pour cables optiques
EP1343040A3 (fr) * 2002-03-04 2004-06-30 Samsung Electronics Co., Ltd. Câble optique léger et compact avec un coussinet intercalaire
WO2004071865A3 (fr) * 2003-02-12 2004-10-28 George K Thomas Constructions de tiges de tension et procede de fabrication associe
WO2009082746A1 (fr) * 2007-12-20 2009-07-02 Composite Rigging Limited And Company Gréement de matériau composite pré-imprégné et procédé de fabrication
CN109541771A (zh) * 2018-12-27 2019-03-29 南京华信藤仓光通信有限公司 一种生产干式层绞光纤带光缆及其成型装置
WO2019175388A3 (fr) * 2018-03-15 2019-10-24 Future Fibres, LLC Câble de mise en tension de fibre composite à brins multiples
WO2019234491A1 (fr) * 2018-06-06 2019-12-12 Aerodyn Consulting Singapore Pte Ltd Câble, en particulier pour éléments de tension d'une éolienne

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2133462A (en) * 1982-12-27 1984-07-25 Dow Chemical Co Integral closure for thermoplastic containers and their production
US4720367A (en) * 1985-04-15 1988-01-19 Bernd Schenk Method of an apparatus for deep drawing of thermoplastic foil
US4851067A (en) * 1987-03-25 1989-07-25 Toyoda Gosei Co., Ltd. Method for producing a weather strip for an automobile
EP0336806A2 (fr) * 1988-03-21 1989-10-11 Alcatel N.V. Extrusion simultanée d'un tube tampon à deux couches
EP0412217A1 (fr) * 1989-08-07 1991-02-13 Hashimoto Forming Industry Co Ltd Procédé et dispositif pour la fabrication d'articles allongés
DE4142045A1 (de) * 1991-12-19 1993-06-24 Siemens Ag Verfahren zur herstellung eines kunststoffkoerpers
US5320788A (en) * 1990-06-27 1994-06-14 Siemens Aktiengesellschaft Process for producing a plastic casing reinforced against tensile force
US5584952A (en) * 1993-09-10 1996-12-17 Hydromatic Ltd. Method and apparatus for making drip irrigation lines and preformed member for use therein
US5630497A (en) * 1995-02-16 1997-05-20 Graham; S. Neal Vibratory parts feeder with pivotal top confinement

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2133462A (en) * 1982-12-27 1984-07-25 Dow Chemical Co Integral closure for thermoplastic containers and their production
US4720367A (en) * 1985-04-15 1988-01-19 Bernd Schenk Method of an apparatus for deep drawing of thermoplastic foil
US4851067A (en) * 1987-03-25 1989-07-25 Toyoda Gosei Co., Ltd. Method for producing a weather strip for an automobile
EP0336806A2 (fr) * 1988-03-21 1989-10-11 Alcatel N.V. Extrusion simultanée d'un tube tampon à deux couches
EP0412217A1 (fr) * 1989-08-07 1991-02-13 Hashimoto Forming Industry Co Ltd Procédé et dispositif pour la fabrication d'articles allongés
US5320788A (en) * 1990-06-27 1994-06-14 Siemens Aktiengesellschaft Process for producing a plastic casing reinforced against tensile force
DE4142045A1 (de) * 1991-12-19 1993-06-24 Siemens Ag Verfahren zur herstellung eines kunststoffkoerpers
US5584952A (en) * 1993-09-10 1996-12-17 Hydromatic Ltd. Method and apparatus for making drip irrigation lines and preformed member for use therein
US5630497A (en) * 1995-02-16 1997-05-20 Graham; S. Neal Vibratory parts feeder with pivotal top confinement

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
DERWENT ABSTRACT, Accession No. 08549Y/05, Class A32; & JP,A,51 147 568 (KOSUI KAGAKU KOGYO), 17 December 1976. *

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6055351A (en) * 1997-05-16 2000-04-25 Alcatel Optical fiber cable
FR2764709A1 (fr) * 1997-06-16 1998-12-18 Alsthom Cge Alcatel Cable a fibres optiques thermoplastique
EP0886159A1 (fr) * 1997-06-16 1998-12-23 Alcatel Câble à fibres optiques
EP0968809A1 (fr) * 1998-07-01 2000-01-05 Alcatel Gaine renforcée continue et composite pour cables optiques
EP1343040A3 (fr) * 2002-03-04 2004-06-30 Samsung Electronics Co., Ltd. Câble optique léger et compact avec un coussinet intercalaire
WO2004071865A3 (fr) * 2003-02-12 2004-10-28 George K Thomas Constructions de tiges de tension et procede de fabrication associe
US6848381B2 (en) * 2003-02-12 2005-02-01 Georg K. Thomas Tension rod constructions and method of making
WO2009082746A1 (fr) * 2007-12-20 2009-07-02 Composite Rigging Limited And Company Gréement de matériau composite pré-imprégné et procédé de fabrication
WO2019175388A3 (fr) * 2018-03-15 2019-10-24 Future Fibres, LLC Câble de mise en tension de fibre composite à brins multiples
WO2019234491A1 (fr) * 2018-06-06 2019-12-12 Aerodyn Consulting Singapore Pte Ltd Câble, en particulier pour éléments de tension d'une éolienne
CN112236556A (zh) * 2018-06-06 2021-01-15 艾罗丁咨询新加坡私人有限公司 缆绳、特别是用于张紧风能设备的部件的缆绳
CN109541771A (zh) * 2018-12-27 2019-03-29 南京华信藤仓光通信有限公司 一种生产干式层绞光纤带光缆及其成型装置

Also Published As

Publication number Publication date
AUPN843596A0 (en) 1996-03-28
ID16449A (id) 1997-10-02
ZA971762B (en) 1997-09-04

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