US20090165518A1 - Apparatus for and Method of Manufacturing Helically Wound Structures - Google Patents

Apparatus for and Method of Manufacturing Helically Wound Structures Download PDF

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Publication number
US20090165518A1
US20090165518A1 US12/086,982 US8698206A US2009165518A1 US 20090165518 A1 US20090165518 A1 US 20090165518A1 US 8698206 A US8698206 A US 8698206A US 2009165518 A1 US2009165518 A1 US 2009165518A1
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United States
Prior art keywords
strip
rollers
adhesive
faceplate
roller
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Abandoned
Application number
US12/086,982
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English (en)
Inventor
John Peter Booth
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ITI Scotland Ltd
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ITI Scotland Ltd
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Filing date
Publication date
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Assigned to ITI SCOTLAND LIMITED reassignment ITI SCOTLAND LIMITED ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: BOOTH, JOHN PETER
Publication of US20090165518A1 publication Critical patent/US20090165518A1/en
Abandoned legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
    • B21C37/00—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape
    • B21C37/06—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape of tubes or metal hoses; Combined procedures for making tubes, e.g. for making multi-wall tubes
    • B21C37/12—Making tubes or metal hoses with helically arranged seams
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
    • B21C37/00—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape
    • B21C37/06—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape of tubes or metal hoses; Combined procedures for making tubes, e.g. for making multi-wall tubes
    • B21C37/12—Making tubes or metal hoses with helically arranged seams
    • B21C37/121—Making tubes or metal hoses with helically arranged seams with non-welded and non-soldered seams
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
    • B21C37/00—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape
    • B21C37/06—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape of tubes or metal hoses; Combined procedures for making tubes, e.g. for making multi-wall tubes
    • B21C37/12—Making tubes or metal hoses with helically arranged seams
    • B21C37/123—Making tubes or metal hoses with helically arranged seams of coated strip material; Making multi-wall tubes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
    • B21C37/00—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape
    • B21C37/06—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape of tubes or metal hoses; Combined procedures for making tubes, e.g. for making multi-wall tubes
    • B21C37/12—Making tubes or metal hoses with helically arranged seams
    • B21C37/126—Supply, or operations combined with supply, of strip material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
    • B21C37/00—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape
    • B21C37/06—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape of tubes or metal hoses; Combined procedures for making tubes, e.g. for making multi-wall tubes
    • B21C37/12—Making tubes or metal hoses with helically arranged seams
    • B21C37/128—Control or regulating devices

Definitions

  • the present invention relates to an apparatus for and method of manufacturing helically wound structures and relates particularly to the manufacture of pipes and longitudinal structures formed by winding strips of metal in a helically overlapping relationship.
  • Other structures such as storage vessels, towers and support structures may also benefit from features described herein.
  • EP0335969 discloses an apparatus for forming a helically wound tubular structure formed from a flat strip of metal wound onto a mandrel.
  • the flat strip is fed from one or other of a pair of supply spools mounted concentrically with the axis of the tubular structure to be made.
  • a rotating winding head is used to wind the strip onto the mandrel and includes a plurality of powered forming rollers which impart an initial form to the cross section of the metal strip before it is passed to a final set of rollers that lay the strip onto the mandrel and then swage over an edge of the strip so that it becomes mechanically locked to the previous layer over which it is wound.
  • This is a complex process.
  • a mechanism for ensuring the strip supply is maintained constant and this mechanism includes speed control of the forming rollers.
  • the coaxial supply bobbins are fed from an external supply spool so as to maintain the supply thereof.
  • a welding station is used to join one end of the strip material to another without having to stop the machine.
  • the present invention provides an apparatus for manufacturing a tubular structure of helically wound strip comprising: a faceplate, mounted for rotation about a longitudinal axis; a drive mechanism, for driving the faceplate in a first direction about said longitudinal axis; and diameter defining rollers, mounted on said faceplate for causing the strip material to bend to a predetermined diameter prior to being formed into a tubular structure.
  • the apparatus includes an assembly of shaping rollers, mounted for rotation with said faceplate and for forming a cross-sectional profile on strip material prior to it being formed to a pre-determined diameter.
  • One or more of said shaping rollers may be driven rollers.
  • the diameter defining rollers include three mutually confronting rollers, one of which is adjustable relative to the other two so as to cause any strip material passing between said rollers to adopt a radius of curvature defined by the positional relationship between said rollers.
  • the diameter defining rollers include a pair of pinch rollers rotatable about their own longitudinal axes and between which a strip of material may pass and a ring roller which is adjustable relative to a first pinch roller by rotation about the axis of the second.
  • the apparatus includes an actuator connected to said ring roller for effecting adjustment relative to said second pinch roller.
  • the apparatus may be provided with a reaction roller against which forming forces exerted on any strip as it is caused to adopt a radius of curvature by the ring roller will be reacted.
  • the apparatus includes a second actuator for causing the axial position of the reaction roller to be varied relative to a pinch roller.
  • An actuator may also be provided for effecting axial adjustment of one of said pinch rollers relative to the other.
  • the apparatus includes drive means for driving one or more of said diameter defining rollers.
  • the apparatus includes a computer coupled to said actuator or actuators for controlling the positional relationship of the roller or rollers.
  • Said computer may comprise a computer programmed to control said roller or rollers in accordance with a predetermined programme.
  • the apparatus includes a first gearing assembly mounted on said faceplate and driven from a fixed gear arranged coaxially with said faceplate and in which said first gearing assembly is engaged with said diameter defining rollers for driving said diameter defining rollers.
  • the apparatus further includes a second gearing assembly mounted on said faceplate and driven from a fixed gear arranged coaxially with said faceplate and In which said second gearing assembly is engaged with said forming rollers for driving said rollers.
  • the apparatus may also include a main drive member for driving said faceplate in said first direction which may comprises a driven gear engaged with a corresponding gear portion on said faceplate.
  • the apparatus includes a stock support for supporting a supply of stock of strip material for being formed into a tubular structure.
  • the stock support may comprise a circumferentially extending cassette extending around said faceplate on an outer diameter thereof.
  • said cassette comprises a plurality of support rollers circumferentially spaced around the longitudinal axis and which cooperate with a portion of a supply of strip stock and allow said stock to rotate about said axis.
  • Said support rollers may be mounted for rotation about a spindle secured to a non rotating portion of said assembly.
  • the forming rollers are staggered along said longitudinal axis and in which the axis of rotation of said rollers relative to said axis varies in accordance the spiral angle of the trip as it passes from a supply thereof to said diameter defining rollers.
  • the apparatus may include a first strip supply guide roller for guiding a supply of strip material from a store thereof to said forming rollers.
  • the apparatus may also include a second strip supply roller for guiding a supply of formed strip from said diameter defining rollers to an inner diameter at which a tubular member is to be formed.
  • the apparatus includes an adhesive applicator for applying an adhesive onto at least a portion of any strip after it passes through said diameter forming rollers.
  • Said adhesive applicator may comprise an adhesive storing cassette for storing a roll of adhesive strip.
  • Said adhesive storing cassette may include a spindle mounted on said faceplate for rotation therewith and around which a supply of adhesive strip may be positioned and rotate upon application of said adhesive strip to said tubular structure forming strip.
  • the apparatus may further include a backing removing mechanism for removing any protective backing on said adhesive strip prior to said adhesive strip being applied to the tubular structure forming strip.
  • the faceplate includes a central hole for receiving a core liner onto which said tubular forming strip may be wound to form a final tubular structure.
  • a central support trunion having a hollow centre which defines said central hole for receiving said core liner.
  • said support trunion is non rotating and includes a gear thereon which forms said fixed gear from which said rollers are driven.
  • said faceplate is mounted for rotation on said support trunion.
  • said faceplate includes a receiving station for receiving a supply of flat strip material to be formed into a tubular structure.
  • Said receiving station may comprise a ring having a diameter corresponding to the diameter of the cassette, thereby to facilitate transfer of strip material therebetween upon depletion of material from said cassette.
  • the apparatus includes a supply means for supplying strip material to said receiving station as said station rotates, thereby to wind said strip material onto said receiving station in advance of material on said cassette being depleted.
  • a method of manufacturing a tubular structure comprising the steps of: bending a strip of material into a helical form by plastic deformation thereof; and winding said bent strip in a self overlapping manner into a tubular structure; wherein the strip is bent into said helical form with a radius of curvature less than the final radius of the structure to be formed.
  • the method includes the step of passing said strip through a pair of pinch rollers and a ring roller adjustable relative to one of said pinch rollers such as to cause said strip to adopt said desired radius of curvature.
  • the method includes the step of passing the strip through a pair of pinched rollers, the axis of rotation of which are displaced relative to each other such as to cause said strip to adopt a bend along its length thereby to impart a sideways bend into said strip and create a strip having one edge longer than the other.
  • the method may include the step of applying an adhesive to portions of said strip which will be overlapping when formed into a tubular structure. Said adhesive may be applied by applying the adhesive as a strip of adhesive.
  • the method includes the step of protecting said strip of adhesive by applying a protective coating to at least one surface thereof and removing said protective coating prior to applying said adhesive onto said strip which forms said tubular structure.
  • the method includes the step of providing a tubular core and winding said strip onto said core so as to produce a tubular structure having an inner core and an outer casing of helically wound material.
  • the step of forming said tubular core is by roll forming a strip of material along its length and seam welding abutting longitudinal edges.
  • the method may include the step of forming said tubular core as a series of discrete lengths of tube and assembling them into a continuous or near continuous length prior to winding said strip material onto said core.
  • said tubular core may be provided as a length of extruded pipe of a plastics material.
  • said discrete lengths of tube are of a ceramics material.
  • FIGS. 1 and 2 are partial cross-sectional views of two types of tubular structure that may be formed by the apparatus described herein;
  • FIG. 3 is a schematic side elevation of an apparatus according to aspects of the present invention.
  • FIG. 4 is a side elevation of the forming head shown schematically in FIG. 3
  • FIG. 5 is a front view of the forming head taken in the direction of arrow A in FIG. 4 ;
  • FIG. 6 is a detailed view of the diameter forming roller arrangement shown generally in FIGS. 4 and 5 ;
  • FIG. 7 is a cross-sectional view of the pinch rollers taken in the direction of arrows B-B in FIG. 6 .
  • a tubular body indicated generally at 10 forms a pipe for use in a pipe system such as a pipeline carrying hot fluids (which may also be under pressure).
  • the tubular body comprises an inner portion in the form of an inner hollow core 12 which may be formed by any one of a number of forming processes, as discussed above and an outer load carrying casing discussed in detail later herein.
  • the inner pipe comprises a continuously formed core, as will also be discussed in detail later herein however, one may have a core made from a plurality of discrete lengths inter-engaged with each other so as to form a long length.
  • the outer casing indicated generally at 14 is formed on the inner hollow core 12 by helically winding a strip 16 of material onto the outer surface 12 a of the core 12 in self-overlapping fashion similar to the manner which is described in detail for the formation of a pipe on a mandrel in the specific descriptions of the applicants U.K. Patent No. 2,280,889 and U.S. Pat. No. 5,837,083.
  • the strip may be wound under tension.
  • the strips 16 which form the outer casing may have one or more transverse cross-sectional steps 18 and 20 each of which is preferably of a depth corresponding to the thickness of the strip 16 .
  • the steps 18 , 20 are preferably preformed within the strip 16 , each extending from one end of the strip 16 to the other to facilitate an over-lapping centreless winding operation in which each convolution of the strip accommodates the overlapping portion of the next convolution.
  • the strip may comprise any one of a number of materials such as a plastic, a composite material or indeed metal, it has been found that metal is particularly suitable in view of its generally high strength capability and ease of forming and joining as will be described later herein. Examples of suitable metals include steel, stainless steel, titanium and aluminium, some of which are particularly suitable due to their anti-corrosion capabilities.
  • the internal surface 16 i of the strip 16 and the outer surface of the pipe 12 o may be secured together by a structural adhesive, as may the overlapping portions 16 a of the strip.
  • a structural adhesive helps ensure that all individual components of the tubular member 10 strain at a similar rate.
  • the application of the adhesive may be by any one of a number of means but one particularly suitable arrangement is discussed in detail later herein together with a number of other options.
  • an apparatus 50 for manufacturing helically wound structures comprises: an optional pre-forming portion 52 , in which a core 54 is formed; a forming station, shown schematically at 56 and described in detail later herein; and a post forming section, shown generally at 58 and including a number of optional features discussed later.
  • the optional pre-forming portion 52 there is provided a store of flat strip material in the form of a roll of metal strip 60 and a plurality of feed rollers 62 which feed the strip to forming rollers 64 and 66 which in turn roll the edges of the strip together around a central mandrel 68 so as to form a tubular structure 54 having confronting edges abutting each other (not shown).
  • a welding apparatus shown generally at 70 and including a welding head 72 is used to weld together the confronting edges in a manner well known in the art and therefore not described further herein.
  • An alternative core forming process might comprise the manufacture of a plurality of discrete lengths of tubular structure, each of which are provided with inter-engaging features on confronting ends thereof such as to allow a plurality of said lengths to be assembled into a long section of core.
  • a suitable feed mechanism not shown
  • FIG. 4 is a side elevation of the forming station 56 and comprises a faceplate 74 upon which are mounted a plurality of shaping rollers 76 and a set of diameter defining rollers, shown generally at 78 .
  • the shaping rollers are profiled so as to form a cross-sectional form to the strip as best seen in FIGS. 1 or 2 . It will, however, be appreciated that the forming rollers could impart an alternative form to the strip or may, in some circumstances, be eliminated all together.
  • the shaping rollers are best provided as a plurality of confronting rollers (best seen in FIG.
  • the shaping rollers are each driven by means of a drive gear 82 each of which is mounted for rotation about an axis on said faceplate and engages on one side with a shaping roller and on another side with a sun gear 84 formed on a non rotating portion 86 , which is described in detail later herein.
  • a drive gear 82 each of which is mounted for rotation about an axis on said faceplate and engages on one side with a shaping roller and on another side with a sun gear 84 formed on a non rotating portion 86 , which is described in detail later herein.
  • gears 76 and 82 rotate therewith but as they are coupled to the sun gear 84 they are caused to rotate about their axes and drive the strip through the pinch formed between confronting shaping rollers 76 .
  • the shaping rollers are each slightly staggered along longitudinal axis X and the axis of rotation of each roller varies in accordance with the spiral angle as the strip 80 passes from the supply thereof to the diameter defining rollers 78 . It will, however, be appreciated that a simpler non staggered arrangement may be used where there is sufficient room to shape the strip and then position it correctly before applying it to the radius forming rollers 78 .
  • this stock supply may be provided in a cassette or stock support 90 comprising a plurality of support rollers 92 positioned outside of said forming station and being circumferentially spaced around longitudinal axis X. Said support rollers 92 cooperate with a portion of the stock of strip material 88 and allows the stock to rotate about axis X.
  • the strip material 80 is removed from an inner diameter of said stock thereof and fed via a first strip supply guide roller 94 mounted for rotation on said faceplate 74 about an axis substantially perpendicular thereto.
  • a motor 96 and gear drive 98 coupled to a ring gear 100 provided on a back plate 102 which is directly linked to face plate via annular portion 104 through which non rotating portion 86 extends.
  • FIGS. 4 and 5 Also shown in FIGS. 4 and 5 is the diameter defining roller arrangement seen generally at 78 and which between them act to curve the strip material by plastically deforming it around one of the rollers such as to define the diameter of the exiting strip.
  • This arrangement is best seen with reference to FIGS. 6 and 7 and is described in detail later herein.
  • An optional adhesive applicator 106 may also be mounted on the faceplate 74 for rotation therewith. The applicator may take a number of forms for supplying adhesive to the strip after it has been formed and one particular arrangement is shown in which a storage cassette 108 is provided with a roll of adhesive strip 110 .
  • the storage cassette 108 is mounted for rotation about a spindle 112 mounted on the faceplate for rotation therewith such that upon rotation of the faceplate adhesive strip may be dispensed onto the surface of the strip 80 as it is lain down onto the core 54 ( FIG. 3 ).
  • the strip of adhesive may be provided in the form of a strip having a backing and this backing may be removed by backing removing means (not shown) prior to said adhesive being applied.
  • the faceplate 74 includes a central hole 114 for receiving a core or liner 54 onto which said strip material 80 may be wound so as to form a final structure 116 .
  • the central hole may be provided with a central support trunion 86 having a hollow centre which defines said central apperture 114 for receiving said core or liner 54 .
  • the trunion may be mounted within said central hole 114 by means of bearings 116 , such that said faceplate 74 can rotate about said trunion 86 .
  • a receiving station 118 in the form of ring 120 having a diameter corresponding to the diameter of the cassette thereby to facilitate the transfer of strip material therebetween upon depletion of the material on the cassette.
  • a supply of strip material 122 forms a supply means for supplying strip material to said receiving station as said station rotates, thereby to wind said strip onto said supply station at the same rate as it is depleted form said cassette.
  • rollers include a pair of pinch rollers 124 , 126 and a ring roller 128 mounted on a pivot arm 130 pivotable about the axis of rotation of one of the pinch rollers. It matters not which roller axis the pivot arm rotates.
  • An actuator shown schematically at 132 is connected to the pivot arm 130 so as to initiate and control pivoting rotation of said ring roller in the direction of arrows D-D in accordance with desired control parameters discussed later herein.
  • a further actuator 134 is provided to alter the position of one of the pinch rollers 126 relative to the other 124 in the directions of arrows E-E and F-F, again as discussed in detail later herein.
  • a final reaction roller 136 is provided in order to react any forces experienced by the bending of the strip as it passes between the pinch rollers and the ring roller 124 , 126 and 128 respectively. This reaction roller may also be controllable by actuator 138 so as to move it into or away from the strip 80 in the direction of arrows G-G as required.
  • FIG. 7 illustrates by way of a cross-sectional drawing the actuator and roller control system in more detail.
  • actuator 134 is preferably provided as a matched pair, one at each end of roller 126 so as to allow differential and equal alteration of the axial position of roller 126 .
  • the actuator spindle 140 passes from the grounded actuator and through a hole 142 passing through an upper block portion 144 , past roller spindle 46 (displaced relative thereto) and into lower block portion 146 into which it is anchored at 148 .
  • a small gap 150 provided between the blocks such that displacement of spindle 140 will cause roller 126 to move closer to or away from roller 124 in accordance with the actuator control parameters.
  • roller 126 is adjustable in the directions of arrows E-E and F-F by means of independently or collectively controlled actuators 134 a, 134 b.
  • Roller 128 is movable in the direction of arrows D-D 1 by actuator 132 and roller 136 is movable in the direction of arrows G-G, by actuator 138 .
  • Each actuator is connected to and controlled by means of computer 140 ( FIG. 3 ).
  • an optional post forming section 58 may include such things as an optional drive mechanism 152 and adhesive curing heater 154 .
  • a tubular structure may be manufactured by causing the faceplate 74 to rotate. This action in turn will cause the strip material 80 to be drawn from the cassette, passed through shaping rollers 76 and into diameter defining rollers 78 at which point the desired diameter is formed by appropriate positional control of rollers 124 , 126 and 128 . As the strip exits the diameter defining rollers it is directed towards the core 54 and wrapped therearound in a self overlapping arrangement best appreciated with reference to FIGS. 1 and 2 . Before the strip is finally deposited onto the core it may be supplemented by an adhesive dispensed as a strip thereof form dispenser 106 .
  • Additional features of this machine include feedback control from the computer to ensure the product diameter is maintained within desired limits and/or altered according to desired parameters. It will be appreciated that as one can control the degree of plastic deformation of the strip as it passes through the radius forming rollers one can also control the final diameter of any tubular structure formed by this apparatus.
  • One important feature of this machine is its ability to form the radius of curvature R such that it is slightly less than that of the core onto which it is to be wound. Such an arrangement has a significant affect on the final product as a strip so formed (to a smaller than required radius) as the outer helically wound strip will effectively grip the previous layer or the core and ensure close contact therebetween and thus provide a better mechanical joint therebetween than might be possible without this feature. Additionally, by plastically deforming the strip rather than elastically deforming the strip as is known in the art one will be placing any adhesive used under far less or possibly no peel loading at all, thus helping to maintain the integrity of the final structure and increasing its pressure capacity closer to its theoretical maximum.
  • the above described method and apparatus may be used to cover an already existing pipeline with an outer casing.
  • the already existing pipeline forms a core and the machine simply rotates around the core and moves therealong so as to lay down the outer wrap of strip material onto the pipeline.
  • Such an approach could be employed when one wishes to repair or strengthen an already existing pipeline.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Shaping Of Tube Ends By Bending Or Straightening (AREA)
  • Lining Or Joining Of Plastics Or The Like (AREA)
  • Winding, Rewinding, Material Storage Devices (AREA)
US12/086,982 2005-12-23 2006-12-21 Apparatus for and Method of Manufacturing Helically Wound Structures Abandoned US20090165518A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
GB0526409A GB2433453B (en) 2005-12-23 2005-12-23 An apparatus for and method of manfacturing helically wound structures
GB0526409.8 2005-12-23
PCT/GB2006/050471 WO2007072079A1 (en) 2005-12-23 2006-12-21 Apparatus for and method of manufacturing helically wound structures

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
PCT/GB2006/050471 A-371-Of-International WO2007072079A1 (en) 2005-12-23 2006-12-21 Apparatus for and method of manufacturing helically wound structures

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US13/562,801 Division US8955362B2 (en) 2005-12-23 2012-07-31 Apparatus for and method of manufacturing helically wound structures

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US20090165518A1 true US20090165518A1 (en) 2009-07-02

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US12/086,982 Abandoned US20090165518A1 (en) 2005-12-23 2006-12-21 Apparatus for and Method of Manufacturing Helically Wound Structures
US13/562,801 Active US8955362B2 (en) 2005-12-23 2012-07-31 Apparatus for and method of manufacturing helically wound structures

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EP (1) EP1971450A1 (es)
JP (1) JP5118647B2 (es)
CN (1) CN101346197B (es)
AU (1) AU2006327969B2 (es)
BR (1) BRPI0621126B1 (es)
CA (1) CA2632644C (es)
EG (1) EG24869A (es)
GB (1) GB2433453B (es)
MA (1) MA30058B1 (es)
MX (1) MX2008008218A (es)
PE (1) PE20070835A1 (es)
RU (1) RU2415726C2 (es)
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US20110271730A1 (en) * 2009-01-16 2011-11-10 Iti Scotland Limited Apparatus for and method of manufacturing a helically wound tubular structure
US20120222771A1 (en) * 2011-03-04 2012-09-06 Pipestream B.V. On-site manufacturing of composite pipeline
US20120255641A1 (en) * 2009-10-20 2012-10-11 Pipestream B.V. Method and apparatus for reinforcing a pipeline
WO2013043920A3 (en) * 2011-09-20 2014-05-08 Keystone Tower Systems, Inc. Tapered structure construction
US10060149B2 (en) 2010-01-25 2018-08-28 Keystone Tower Systems, Inc. Tapered spiral welded structure
US10189064B2 (en) 2010-01-25 2019-01-29 Keystone Tower Systems, Inc. Control system and method for tapered structure construction
CN113165058A (zh) * 2018-09-19 2021-07-23 弗劳恩霍夫应用研究促进协会 用于生产螺旋结构的辊式成型方法
WO2024039894A1 (en) * 2022-08-19 2024-02-22 Safeguard, Llc Linear propulsion mechanisms for the manufacture of multilayer tubular composite structures on forming mandrels

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US20100139848A1 (en) * 2007-05-04 2010-06-10 Raymond Nicholas Burke Production of tubular body comprising two or more layers of helically bended strips
EA014701B1 (ru) * 2007-09-13 2010-12-30 Шелл Интернэшнл Рисерч Маатсхаппий Б.В. Мобильная установка для изготовления длинномерных трубчатых тел
GB2467899A (en) * 2009-01-16 2010-08-18 Iti Scotland Ltd A winding apparatus and method of manufacturing helically wound structures
GB2467103A (en) * 2009-01-16 2010-07-21 Iti Scotland Ltd A winding apparatus for and method of manufacturing helically wound structures.
GB2467105A (en) * 2009-01-16 2010-07-21 Iti Scotland Ltd A winding apparatus for and method of manufacturing helically wound structures
US20110290411A1 (en) * 2010-05-27 2011-12-01 Pipestream B.V. Modular System for Fabricating a Reinforced Tubular
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GB2496137B (en) * 2011-11-01 2015-09-02 Iti Scotland Ltd Tubular bodies and methods of forming same
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CA2632644C (en) 2015-11-24
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BRPI0621126A2 (pt) 2011-11-29
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EG24869A (en) 2010-11-03
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US20120291956A1 (en) 2012-11-22
PE20070835A1 (es) 2007-08-24
BRPI0621126B1 (pt) 2019-05-28
JP5118647B2 (ja) 2013-01-16
GB2433453B (en) 2010-08-11
RU2008130372A (ru) 2010-01-27
RU2415726C2 (ru) 2011-04-10
MX2008008218A (es) 2008-09-24
US8955362B2 (en) 2015-02-17
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GB0526409D0 (en) 2006-02-08
GB2433453A (en) 2007-06-27

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