US3672196A - Method and apparatus for making corrugations in tubes consisting of ductile material - Google Patents

Method and apparatus for making corrugations in tubes consisting of ductile material Download PDF

Info

Publication number
US3672196A
US3672196A US54247A US3672196DA US3672196A US 3672196 A US3672196 A US 3672196A US 54247 A US54247 A US 54247A US 3672196D A US3672196D A US 3672196DA US 3672196 A US3672196 A US 3672196A
Authority
US
United States
Prior art keywords
tools
tube
path
holder
corrugations
Prior art date
Legal status (The legal status 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 status listed.)
Expired - Lifetime
Application number
US54247A
Other languages
English (en)
Inventor
Friedrich Levacher
Hans Leo Ditscheid
Walter Burger
Peter Asselborn
Werner Cramer
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Felten and Guilleaume Kabelwerke GmbH
Original Assignee
Felten and Guilleaume Kabelwerke GmbH
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 Felten and Guilleaume Kabelwerke GmbH filed Critical Felten and Guilleaume Kabelwerke GmbH
Application granted granted Critical
Publication of US3672196A publication Critical patent/US3672196A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D15/00—Corrugating tubes
    • B21D15/04—Corrugating tubes transversely, e.g. helically
    • B21D15/06—Corrugating tubes transversely, e.g. helically annularly
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/53—Means to assemble or disassemble
    • Y10T29/53126—Means to place sheath on running-length core
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/53—Means to assemble or disassemble
    • Y10T29/5313—Means to assemble electrical device
    • Y10T29/532—Conductor

Definitions

  • Striker 57 ABSTRACT A tube consisting of ductile metallic or plastic material is provided with circumferentially complete corrugations, helical grooves and/or axially parallel grooves while it travels between two universally movable bearings so that it can flex sideways without any appreciable elongation or hardening of its material.
  • the grooves or corrugations are formed by tools having concave tube-engaging faces and rotatably mounted in a holder which orbits about the tube between the two bearings.
  • the tools can be fixedly or adjustably mounted in the holder; in the latter instance, a single set of tools can be used to form circumferentially complete corrugations helical grooves or axially parallel grooves.
  • the present invention relates to a method and apparatus for the production of corrugated tubes, and more particularly to a method and apparatus for the formation of circumferential, helical and/or other corrugations or grooves in metallic or plastic tubes which consist of ductile material and which can be used, for example, as sheaths for electric cables or the like.
  • corrugated sheaths for electric cables An important function of corrugated sheaths for electric cables is to furnish a satisfactory mechanical and electrical protective action as well as to permit ready flexing of cables. Thus, the sheath should offer little resistance to flexing in any desired direction and it should permit flexing to a greater or lesser extent.
  • Certain other types of presently known apparatus employ travelling corrugating wheels including those having a concave profile. Experiments which were carried out with such apparatus indicate that the wheels are not suited for the making of relatively deep corrugations in thick-walled tubes; it was found that such tools, too, cause localized reduction in wall thickness and localized hardening of material of which the tubes consist. On the other hand, relatively deep corrugations are often desirable because they enhance the flexibility of the product.
  • An object of the invention is to provide a method of forming ductile metallic or plastic tubes with circumferentially complete, helical or other corrugations or grooves without any appreciable localized hardening and/or reduction in wall thickness of tubes.
  • Another object of the invention is to provide a method which renders it possible to form relatively deep or shallow corrugations in thick-walled large-diameter tubes, for example, in metallic tubes having a diameter exceeding 40 millimeters and a wall thickness which exceeds 4 percent of the diameter.
  • a further object of the invention is to provide a method of providing tubes consisting of ductile material with corrugations or grooves in such a way that the formation of grooves or corrugations does not result in deformation of non-corrugated portions of the tubes.
  • An additional object of the invention is to provide an apparatus which can be utilized for the practice of the aboveoutlined method.
  • Still another object of the invention is to provide the apparatus with novel holders for grooving or corrugating tools.
  • An ancillary object of the invention is to provide a versatile apparatus which can be converted to form in metallic or plastic tubes circumferentially complete, helical or otherwise oriented grooves or corrugations.
  • the method of the present invention is employed for forming corrugations or analogous grooves in tubes consisting of ductile material, particularly in metallic or plastic tubes for use as sheaths in electric cables.
  • the method comprises the steps of moving a tube lengthwise along a predetermined path, universally movably guiding two longitudinally spaced portions of the tube so that a section of the tube between such portions can flex sideways without any or without appreciable stretching of the ductile material of the tube, and orbiting about the section a plurality of corrugating or grooving tools in such positions and at such a distance from the path that the section is flexed laterally and grooved by successive tools, alwaysbyone tool atatime.
  • FIG. 1 is a schematic partly elevational and partly sectional view of an apparatus which embodies one form of the invention and is designed to provide metallic or plastic tubes with circumferentially complete corrugatiom;
  • FIG. 2 is an enlarged fragmentary sectional view as seen in the direction of arrows from the line Il-Il of FIG. I and illustrates one mode of mounting the grooving or corrugating tools in their holder;
  • FIG. 3 is an enlarged view of a detail in the apparatus of FIG. 1 and further shows one mode of lubricating the tools;
  • FIG. 4 illustrates a portion of a modified apparatus wherein the mas of the orbiting holder for the tools is balanced by a counterweight
  • FIG. 5 is an enlarged fragmentary end elevational view of a grooving or corrugating unit with adjustably mounted tools
  • FIG. 6 is a fragmentary partly side elevational and partly sectional view of a grooving or corrugating unit constituting a modification of the unit shown in FIG. 5',
  • FIG. 7 is a fragmentary schematic side elevational view of still another apparatus wherein the holder for the tools constitutes a planetary;
  • FIG. 8 is a side elevational view of a portion of a finished tube with identical circumferentially complete corrugations formed therein at difierent distances from each other;
  • FIG. 9 is a side elevational view of a portion of a finished tube which is formed with groups of closely adjacent identical circumferentially complete corrugations;
  • FIG. 10 is a side elevational view of a portion of a finished tube having circurnferentially complete corrugations of different depth and shape disposed at different distances from each other;
  • FIG. 1 l is a side elevational view of a finished tube which is provided with circumferentially complete corrugations, helical grooves and axially parallel grooves.
  • FIG. I there is shown a corrugating or grooving apparatus which comprises a suitable mechanism M for feeding a metallic tube 1 axially in the direction indicated by arrow la.
  • the tube is caused to pass through and is guided by a first universally movable hollow spherical bearing 60 which is mounted in a stationary support 81, and thereupon through a second universally movable hollow spherical bearing 6b mounted in a second support S2.
  • the corrugating or grooving station is located between the bearings 60, 6b and accommodates a wheelshaped tool holder 2 which is rotatable about the axis of a shaft 4 and is caused to orbit circumferentially about the axis of the travelling tube 1.
  • the holder 2 carries a set of equidistant radially extending grooving or corrugating tools 3.
  • the axis of the shaft 4 is normal to the axis of the tube 1.
  • the holder 2 is assumed to rotate about the axis of the shaft 4 in response to lengthwise movement of the tube but it can also be driven by a gear train or the like.
  • the distance between the shaft 4 and the path for the tube 1 is selected in such a way that the tool 3 which engages the tube causes the latter to flex (downwardly, as viewed in FIG. 1) whereby such flexing takes place simultaneously with the formation of circumferential corrugations C.
  • Such flexing of the tube 1 takes place without any elongation because the tube travels through the passages defined therefor by the spherical bearings 60 and 6b. Therefore, the corrugations C are formed without localized reduction in the wall thickness of the tube and without hardening of the metallic material.
  • the spacing between successive tools 3 (as considered in the circumferential direction of the tool holder 2) is such that a tool engages the tube 1 only when the formation of the preceding corrugation C is completed. This is desirable because simultaneous engagement of the tube by two tools 3 would interfere with desirable flow of metallic material of the cylindrical wall 7.
  • the distance A1 between the center of the right-hand bearing 6b and the axis of the shaft 4 is less than the distance A2 between the axis of the shaft 4 and the center of the left-hand bearing 64. [t was found that the distance A2 should be at least 2.5 times and that the distance A] should be at least 1.5 times the diameter D of the tube 1.
  • the vertical plane including the axis of the shaft 4 intersects the tube 1 in the region where a tool 3 begins to move away from the axis 5 of the tube.
  • the reference character Dw denotes the maximum diameter of the corrugating or grooving unit including the holder 2 and tools 3.
  • the apparatus is preferably furnished with several grooving or corrugating units, each having a different diameter Dw, depending on the diameter of the tube.
  • the tube can consist of any ductile metallic or plastic material.
  • FIG. 2 shows that each tool 3 comprises a concave work-engaging face 3A and is seated in a socket or notch 11 in the disk-shaped main body portion 2a of the holder 2.
  • the latter has two externally threaded extensions 2b, 2r: which mesh with threaded end walls 12, 13 having suitably configurated conical flanges which engage the inclined end faces of the tools 3 and hold them against movement axially as well as radially of the main portion 2a.
  • the radius R of curvature of the concave face 3A is between 1.1 and 1.8 times the radius R, of the untreated part of the tube 1.
  • the maximum diameter Dw of the grooving or corrugating unit including the holder 2 and tools 3 can be calculated in accordance with the equation wherein .t is the distance between the centers of successive corrugations. t is the maximum depth of a corrugation, r is the radius of curvature of the profile of a tool 3 (this radius equals the desired radius of curvature of surfaces flanking the deepmost portions of corrugations C), and alpha is the angle between the planes of adjoining tools 3 (this angle determines the distance between successive corrugations in the tube).
  • FIG. 4 illustrates one presently preferred device for orbiting the holder 2 about the axis of the axially moving tube 1.
  • This device comprises a driven carriage S rotatably mounted on the support 51, a bifurcated bracket 51 which is mounted on the carriage 50 and supports the shaft 4 for the holder 2, a similar bifurcated bracket 52 located diametrically opposite the bracket (with reference to the axis of the tube 1 and a counterweight 10 which is rotatably mounted on a shaft 53 supported by the bracket 52.
  • the means for rotating the carriage 50 may comprise a system of gears or the like.
  • the counterweight 10 and its bracket 52 balance the weight of the bracket 51 and corrugating unit 2, 3.
  • the distance between the parts 2, 10 on the one hand and the axis 5 of the travelling tube 1 on the other hand can be adjusted by means of a feed screw 8 driven by an electric motor 9 and meshing with the brackets 51, 52.
  • the motor 9 can be connected with an energy source by means of customary slip rings or the like, not shown.
  • the faces 3A of the tools 3 can be lubricated by way of lubricating ducts 22 (see also FIG. 3) provided in the bodies of such tools and receiving lubricant from the interior of the holder.
  • the ducts 22 may (but need not) be omitted if the lubricating system comprises one or more nozzles 23 mounted on the counterweight l0 and serving to discharge lubricant into the corrugations C of the tube 1.
  • the illustrated nozzle 23 shares the orbital movement of the holder 2 about the axis of the tube.
  • the configuration of the counterweight 10 is similar to that of the holder 2.
  • FIG. 4 An apparatus which employs the structure of FIG. 4 is especially suited for experimentation.
  • the person in charge might wish to start the motor 9 and to thus move the holder 2 and counterweight 10 toward or away from the axis 5 of the tube 1 in order to determine the optimum distance for the formation of relatively deep, medium deep or shallow circumferential corrugations in a tube having a certain diameter, a certain wall thickness and consisting of a particular ductile metallic or plastic material.
  • the width of recesses or notches ll 1 may exceed the thickness of the tools 103 so that these tools can swivel about radial axes l5 and to make with the axis 5 of the travelling tube a desired angle beta.
  • the holder 102 comprises a main body portion [020 and two modified end walls l6, 17 which are angularly movable with reference to each other and have concave recesses 14 for the longitudinal ends of the tools 103.
  • the end wall 16 By turning the end wall 16 with reference to the end wall 17 and/or vice versa, the person in charge can change the angle beta. This angle can be reduced to zero if the tools 103 are to provide the tube 1 with circumferentially complete corrugations c. If the angle beta exceeds zero, the tools 103 can provide the tube with a helical groove.
  • FIG. 6 illustrates a holder 202 which constitutes a modification of the holder 102 and which is also provided with means for changing the inclination of tools 203 about radial axes 215.
  • One of the end walls l6, l7 is replaced with a ring-shaped carrier 200 having a cylindrical flange 20b provided with radial bores 200 for the shafis 18 of the tools 203.
  • the axes of the shafts l8 coincide with the respective axes 215.
  • each shaft 18 carries a pinion 19 which meshes with a ring gear 20A forming part of a disk 20 which is angularly movably coupled to the carrier 20a and is caused to change its angular position when the operator wishes to adjust the inclination of the tools 203. All of these tools are adjustable to the same degee and in the same direction, depending on the direction of rotation of the disk 20.
  • the structure of H6. 6 is preferred in apparatus wherein the angle beta must be varied at frequent intervals.
  • the pinions 19 can be replaced with gear segments and the ring gear 20A may also comprise several discrete toothed portions each meshing with one of the pinions 19 or with one of the just mentioned gear segments.
  • the grooving or corrugating unit preferably comprises a holder 302 which is a planetary having several equidistant planet pinions 24. These pinions are mounted on shafts 21 installed in a planet carrier 302a and mesh with a sun wheel 55 mounted on the shaft 304.
  • the tools 303 are mounted on the pinions 24 in such a way that their planes are normal to the axis 5 and to the external surface 7 of the tube 1.
  • the entire planetary 302 orbits about the axis of the tube when the apparatus is in use.
  • the angular position (orientation) of the tools 303 remains unchanged when the planet pinions 24 travel about the sun wheel 55 either in response to lengthwise movement of the tube 1 or in response to starting of separate drive means for the planetary.
  • FIG. 8 illustrates a tube 1A having circumferentially complete corrugations C which are not equidistant from each other. Such formation can be achieved, for example, by driving the holder 2 of FIG. 1 at a variable speed or by mounting the tools at unequal distances from each other.
  • FIG. 9 illustrates a second tube 18 having groups of closely adjacent circumferentially complete corrugations C whereby the corrugations of each group may but need not be exactly equidistant from each other. Also, the distance between successive groups may but need not be the same.
  • FIG. 10 shows a further tube 1D wherein the distance between the circumferential corrugations is nonuniform and the depth and/or width of corrugations also varies to a desired extent. Such configuration renders it possible to impart a desired flexibility to each of several successive sections of the product.
  • the grooves or corrugations shown in FIG. 10 are formed with a unit including differently configurated and dimensioned tools which are mounted at different distances from each other.
  • FIG. ll shows a further tube wherein circumferentially complete corrugations alternate and/or are combined with helical and axially parallel corrugations.
  • Such helical and axially parallel corrugations can be formed with angularly adjustable tools of the type shown in FIGS. 5 and 6.
  • the tools 203 are tumable through 90" so that they can be used to form circumferentially complete corrugations, helical corrugations or axially parallel grooves.
  • the tools in a grooving unit e.g., in the unit of FIG. 4 can be mounted in such a way that the distances between successive corrugations or groups of corrugations vary at regular intervals.
  • a method of forming corrugations or analogous grooves in tubes consisting of ductile material, particularly in tubes for use as sheaths in electric cables comprising the steps of moving a tube lengthwise along a predetermined path and univer sally movable guiding two longitudinally spaced portions of the tube so that the whole section of the tube between said portions can bend in direction transverse to its elongation; and orbiting about such section of the tube a plurality of grooving tools in such a position and at such a distance from said path that the whole section is bent in transverse direction and then grooved by successive tools, always by one tool at a time, whereby such grooving will occur without appreciable stretching of the ductile material of the tube.
  • Apparatus for forming corrugations or analogous grooves in tubes consisting of ductile material, particularly in tubes for use as sheaths in electric cables comprising means for advancing a tube lengthwise along an elongated path; a pair of mutuully spaced universally movable bearing means each surrounding a portion of said path and having passages for closely guiding the advancing tube whereby the whole section of the tube between such bearing means can bend in direction transverse to its elongation; and a grooving unit disposed between said bearing means and including holder means arranged to orbit about said path and a plurality of grooving tools supported by said holder means for movement about an axis which is at least substantially normal to said path, said tools being sufficiently close to said path to bend said section between said bearing means in said transverse direction while tilting said bearing means and to groove the bent tube between said bearing means and said tools being arranged to travel about said axis at such a rate that the tube is engaged by one tool at a time.
  • each of said bearing means comprises a substantially spherical bearing.
  • each of said radii of curvature is between 1.1 and 1.8 times the radius of the tube.
  • Apparatus as defined in claim 2 further comprising adjusting means for moving said holder means substantially radially of said path.
  • Apparatus as defined in claim 10 further comprising a driven carriage supporting said holder means for orbital movement about said path, said adjusting means comprising a feed screw rotatably mounted in said carriage and arranged to move the holder means radially of said path in response to rotation thereof, and motor means for rotating said feed screw.
  • Apparatus as defined in claim 10 further comprising a rotary carriage supporting said holder means and movable therewith about said path, and a counterweight mounted on said carriage diametrically opposite said holder means, said adjusting means being arranged to move said counterweight in response to movement of said holder means radially of said path.
  • Apparatus as defined in claim 2, wherein said holder means comprises a hub having peripheral sockets for said tools and end walls connected with said hub and arranged to releasably hold the tools in the respective sockets.
  • each of said tools is mounted for swiveling movement about an axis which is normal to said first-mentioned axis and wherein said holder means comprises meam for swiveling said tools about such axes.
  • Apparatus as defined in claim 14, wherein said holder means comprises a hub having peripheral sockets receiving said tools with clearance, said means for swiveling comprising end walls connected with said hub and arranged to retain said tools in the respective sockets, at least one of said end walls being arranged to turn about said first-mentioned axis to thereby swivel said tools.
  • Apparatus as defined in claim 14, wherein said means for swiveling comprises pinions provided on said tools and a gear rotatable about said first-mentioned axis and meshing with said pinions.
  • Apparatus as defined in claim 2, wherein said holder means comprises means for maintaining said tools in planes which are at least substantially normal to said path.
  • said holder means comprises a planetary including a sun wheel rotatable about said axis, a planet carrier, and planet pinions mounted in said planet carrier and meshing with said sun wheel, said carrier and said pinions constituting said means for maintaining the tools in said planes.
  • Apparatus as defined in claim 2 further compr'sing at least one lubricant-discharging nozzle arranged to orbit with said holder means and to lubricate such portions of a travelling tube which are grooved by said tools.
  • said unit further comprises a counterweight arranged to orbit about said path and disposed diametrically opposite said holder means, said nozzle means being supported by said counterweight.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Rigid Pipes And Flexible Pipes (AREA)
  • Details Of Indoor Wiring (AREA)
  • Treatment Of Fiber Materials (AREA)
  • Shaping Of Tube Ends By Bending Or Straightening (AREA)
  • Paper (AREA)
US54247A 1969-08-02 1970-07-13 Method and apparatus for making corrugations in tubes consisting of ductile material Expired - Lifetime US3672196A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19691939402 DE1939402B2 (de) 1969-08-02 1969-08-02 Verfahren und Vorrichtung zum Wellen von Rohrwandungen

Publications (1)

Publication Number Publication Date
US3672196A true US3672196A (en) 1972-06-27

Family

ID=5741746

Family Applications (1)

Application Number Title Priority Date Filing Date
US54247A Expired - Lifetime US3672196A (en) 1969-08-02 1970-07-13 Method and apparatus for making corrugations in tubes consisting of ductile material

Country Status (10)

Country Link
US (1) US3672196A (de)
JP (1) JPS5017029B1 (de)
AT (1) AT302779B (de)
BE (1) BE753357A (de)
CA (1) CA930250A (de)
CH (1) CH532433A (de)
DE (1) DE1939402B2 (de)
FR (1) FR2100583B1 (de)
GB (1) GB1265593A (de)
SE (1) SE356911B (de)

Cited By (31)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3785189A (en) * 1971-05-10 1974-01-15 Felten & Guilleaume Kabelwerk Tube corrugating apparatus
US4043161A (en) * 1975-11-07 1977-08-23 Astrolab, Inc. Apparatus for forming corrugations of "zero" pitch in coaxial cable
US4663954A (en) * 1984-08-24 1987-05-12 Kabelmetal Electro Gesellschaft Mit Beschrankter Haftung Method and apparatus for the corrugating of metal tubes
US5181316A (en) * 1991-08-23 1993-01-26 Flexco Microwave, Inc. Method for making flexible coaxial cable
EP0864383A1 (de) * 1997-03-12 1998-09-16 Alcatel Vorrichtung zum Ringwellen von Rohren
US5855062A (en) * 1996-07-31 1999-01-05 Kendall, Jr.; Clarence E. Method and apparatus for manufacturing an insulated conductor in metal tubing
US20060096744A1 (en) * 2004-11-09 2006-05-11 Denso Corporation Double-wall pipe, method of manufacturing the same and refrigerant cycle device provided with the same
US20090194287A1 (en) * 2007-10-19 2009-08-06 Scott Vinh Nguyen Induction heaters used to heat subsurface formations
US20100307045A1 (en) * 2007-11-02 2010-12-09 Transmission Systems Limited Projectile Weapons
WO2011044488A1 (en) * 2009-10-09 2011-04-14 Shell Oil Company Press-fit coupling joint for joining insulated conductors
US20110124228A1 (en) * 2009-10-09 2011-05-26 John Matthew Coles Compacted coupling joint for coupling insulated conductors
US20110132661A1 (en) * 2009-10-09 2011-06-09 Patrick Silas Harmason Parallelogram coupling joint for coupling insulated conductors
US20110134958A1 (en) * 2009-10-09 2011-06-09 Dhruv Arora Methods for assessing a temperature in a subsurface formation
US8224165B2 (en) 2005-04-22 2012-07-17 Shell Oil Company Temperature limited heater utilizing non-ferromagnetic conductor
US8256512B2 (en) 2008-10-13 2012-09-04 Shell Oil Company Movable heaters for treating subsurface hydrocarbon containing formations
US8355623B2 (en) 2004-04-23 2013-01-15 Shell Oil Company Temperature limited heaters with high power factors
US8448707B2 (en) 2009-04-10 2013-05-28 Shell Oil Company Non-conducting heater casings
US8485256B2 (en) 2010-04-09 2013-07-16 Shell Oil Company Variable thickness insulated conductors
US8586866B2 (en) 2010-10-08 2013-11-19 Shell Oil Company Hydroformed splice for insulated conductors
US8791396B2 (en) 2007-04-20 2014-07-29 Shell Oil Company Floating insulated conductors for heating subsurface formations
US8857051B2 (en) 2010-10-08 2014-10-14 Shell Oil Company System and method for coupling lead-in conductor to insulated conductor
DE102010008175B4 (de) * 2010-02-16 2014-12-04 Thesys Gmbh Wärmeübertrager
US8939207B2 (en) 2010-04-09 2015-01-27 Shell Oil Company Insulated conductor heaters with semiconductor layers
US8943686B2 (en) 2010-10-08 2015-02-03 Shell Oil Company Compaction of electrical insulation for joining insulated conductors
US9048653B2 (en) 2011-04-08 2015-06-02 Shell Oil Company Systems for joining insulated conductors
US9080409B2 (en) 2011-10-07 2015-07-14 Shell Oil Company Integral splice for insulated conductors
US9080917B2 (en) 2011-10-07 2015-07-14 Shell Oil Company System and methods for using dielectric properties of an insulated conductor in a subsurface formation to assess properties of the insulated conductor
US9226341B2 (en) 2011-10-07 2015-12-29 Shell Oil Company Forming insulated conductors using a final reduction step after heat treating
US20160114742A1 (en) * 2013-07-02 2016-04-28 Yazaki Corporation Wire Harness
US10030794B2 (en) 2015-12-14 2018-07-24 Yazaki Corporation Corrugated tube and wire harness
CN108480442A (zh) * 2018-05-25 2018-09-04 长园电力技术有限公司 一种电缆金属波纹管的恢复装置

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2569357B1 (fr) * 1984-08-24 1989-01-20 Kabelmetal Electro Gmbh Procede et dispositif pour onduler des tubes metalliques et cable d'energie electrique fabrique selon le procede
DE19702973C2 (de) * 1996-02-10 2002-03-07 Behr Gmbh & Co Flüssigkeitsreibungskupplung
JP4628858B2 (ja) * 2005-05-09 2011-02-09 株式会社デンソー 二重管の製造方法、およびその装置
JP2007187281A (ja) * 2006-01-16 2007-07-26 Yazaki Corp コルゲートチューブとその緩衝構造及びその製造方法
JP2023106015A (ja) * 2022-01-20 2023-08-01 株式会社オートネットワーク技術研究所 ワイヤハーネス

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2614607A (en) * 1948-10-01 1952-10-21 Klein Otto Apparatus for corrugating tubes
CA585377A (en) * 1959-10-20 R. Penrose James Machines for corrugating tubes
US3464250A (en) * 1965-03-02 1969-09-02 Western Electric Co Corrugating apparatus
US3543551A (en) * 1968-03-05 1970-12-01 Universal Metal Hose Co Apparatus for helically corrugating metal tubing

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2757706A (en) * 1951-05-09 1956-08-07 John M Johnston Apparatus and method for forming seamless flexible tubing
GB791514A (en) * 1954-02-01 1958-03-05 Gen Electric Co Ltd Improvements in or relating to machines and methods for corrugating tubes

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA585377A (en) * 1959-10-20 R. Penrose James Machines for corrugating tubes
US2614607A (en) * 1948-10-01 1952-10-21 Klein Otto Apparatus for corrugating tubes
US3464250A (en) * 1965-03-02 1969-09-02 Western Electric Co Corrugating apparatus
US3543551A (en) * 1968-03-05 1970-12-01 Universal Metal Hose Co Apparatus for helically corrugating metal tubing

Cited By (55)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3785189A (en) * 1971-05-10 1974-01-15 Felten & Guilleaume Kabelwerk Tube corrugating apparatus
US4043161A (en) * 1975-11-07 1977-08-23 Astrolab, Inc. Apparatus for forming corrugations of "zero" pitch in coaxial cable
US4663954A (en) * 1984-08-24 1987-05-12 Kabelmetal Electro Gesellschaft Mit Beschrankter Haftung Method and apparatus for the corrugating of metal tubes
US5181316A (en) * 1991-08-23 1993-01-26 Flexco Microwave, Inc. Method for making flexible coaxial cable
US5855062A (en) * 1996-07-31 1999-01-05 Kendall, Jr.; Clarence E. Method and apparatus for manufacturing an insulated conductor in metal tubing
EP0864383A1 (de) * 1997-03-12 1998-09-16 Alcatel Vorrichtung zum Ringwellen von Rohren
US6073473A (en) * 1997-03-12 2000-06-13 Alcatel Device for corrugating tubes
US8355623B2 (en) 2004-04-23 2013-01-15 Shell Oil Company Temperature limited heaters with high power factors
US20110073208A1 (en) * 2004-11-09 2011-03-31 Denso Corporation Double-wall pipe, method of manufacturing the same and refrigerant cycle device provided with the same
US7866378B2 (en) 2004-11-09 2011-01-11 Denso Corporation Double-wall pipe, method of manufacturing the same and refrigerant cycle device provided with the same
US20060112556A1 (en) * 2004-11-09 2006-06-01 Denso Corporation Method and apparatus of manufacturing grooved pipe, and structure thereof
US9669499B2 (en) 2004-11-09 2017-06-06 Denso Corporation Double-wall pipe, method of manufacturing the same and refrigerant cycle device provided with the same
US20060096744A1 (en) * 2004-11-09 2006-05-11 Denso Corporation Double-wall pipe, method of manufacturing the same and refrigerant cycle device provided with the same
US8224165B2 (en) 2005-04-22 2012-07-17 Shell Oil Company Temperature limited heater utilizing non-ferromagnetic conductor
US8791396B2 (en) 2007-04-20 2014-07-29 Shell Oil Company Floating insulated conductors for heating subsurface formations
US20090194287A1 (en) * 2007-10-19 2009-08-06 Scott Vinh Nguyen Induction heaters used to heat subsurface formations
US8113272B2 (en) 2007-10-19 2012-02-14 Shell Oil Company Three-phase heaters with common overburden sections for heating subsurface formations
US8162059B2 (en) 2007-10-19 2012-04-24 Shell Oil Company Induction heaters used to heat subsurface formations
US20100307045A1 (en) * 2007-11-02 2010-12-09 Transmission Systems Limited Projectile Weapons
US8291632B2 (en) * 2007-11-02 2012-10-23 Transmission Systems Limited Projectile weapons
US8353347B2 (en) 2008-10-13 2013-01-15 Shell Oil Company Deployment of insulated conductors for treating subsurface formations
US8256512B2 (en) 2008-10-13 2012-09-04 Shell Oil Company Movable heaters for treating subsurface hydrocarbon containing formations
US9022118B2 (en) 2008-10-13 2015-05-05 Shell Oil Company Double insulated heaters for treating subsurface formations
US8448707B2 (en) 2009-04-10 2013-05-28 Shell Oil Company Non-conducting heater casings
WO2011044488A1 (en) * 2009-10-09 2011-04-14 Shell Oil Company Press-fit coupling joint for joining insulated conductors
US20110124228A1 (en) * 2009-10-09 2011-05-26 John Matthew Coles Compacted coupling joint for coupling insulated conductors
US8356935B2 (en) 2009-10-09 2013-01-22 Shell Oil Company Methods for assessing a temperature in a subsurface formation
US20110134958A1 (en) * 2009-10-09 2011-06-09 Dhruv Arora Methods for assessing a temperature in a subsurface formation
US8485847B2 (en) 2009-10-09 2013-07-16 Shell Oil Company Press-fit coupling joint for joining insulated conductors
US20110124223A1 (en) * 2009-10-09 2011-05-26 David Jon Tilley Press-fit coupling joint for joining insulated conductors
US8816203B2 (en) 2009-10-09 2014-08-26 Shell Oil Company Compacted coupling joint for coupling insulated conductors
US20110132661A1 (en) * 2009-10-09 2011-06-09 Patrick Silas Harmason Parallelogram coupling joint for coupling insulated conductors
US8257112B2 (en) 2009-10-09 2012-09-04 Shell Oil Company Press-fit coupling joint for joining insulated conductors
US9466896B2 (en) 2009-10-09 2016-10-11 Shell Oil Company Parallelogram coupling joint for coupling insulated conductors
DE102010008175B4 (de) * 2010-02-16 2014-12-04 Thesys Gmbh Wärmeübertrager
US8967259B2 (en) 2010-04-09 2015-03-03 Shell Oil Company Helical winding of insulated conductor heaters for installation
US8502120B2 (en) 2010-04-09 2013-08-06 Shell Oil Company Insulating blocks and methods for installation in insulated conductor heaters
US8859942B2 (en) 2010-04-09 2014-10-14 Shell Oil Company Insulating blocks and methods for installation in insulated conductor heaters
US8485256B2 (en) 2010-04-09 2013-07-16 Shell Oil Company Variable thickness insulated conductors
US8939207B2 (en) 2010-04-09 2015-01-27 Shell Oil Company Insulated conductor heaters with semiconductor layers
US8586867B2 (en) 2010-10-08 2013-11-19 Shell Oil Company End termination for three-phase insulated conductors
US9337550B2 (en) 2010-10-08 2016-05-10 Shell Oil Company End termination for three-phase insulated conductors
US8857051B2 (en) 2010-10-08 2014-10-14 Shell Oil Company System and method for coupling lead-in conductor to insulated conductor
US8943686B2 (en) 2010-10-08 2015-02-03 Shell Oil Company Compaction of electrical insulation for joining insulated conductors
US9755415B2 (en) 2010-10-08 2017-09-05 Shell Oil Company End termination for three-phase insulated conductors
US8586866B2 (en) 2010-10-08 2013-11-19 Shell Oil Company Hydroformed splice for insulated conductors
US8732946B2 (en) 2010-10-08 2014-05-27 Shell Oil Company Mechanical compaction of insulator for insulated conductor splices
US9048653B2 (en) 2011-04-08 2015-06-02 Shell Oil Company Systems for joining insulated conductors
US9080409B2 (en) 2011-10-07 2015-07-14 Shell Oil Company Integral splice for insulated conductors
US9226341B2 (en) 2011-10-07 2015-12-29 Shell Oil Company Forming insulated conductors using a final reduction step after heat treating
US9080917B2 (en) 2011-10-07 2015-07-14 Shell Oil Company System and methods for using dielectric properties of an insulated conductor in a subsurface formation to assess properties of the insulated conductor
US20160114742A1 (en) * 2013-07-02 2016-04-28 Yazaki Corporation Wire Harness
US9873391B2 (en) * 2013-07-02 2018-01-23 Yazaki Corporation Wire harness
US10030794B2 (en) 2015-12-14 2018-07-24 Yazaki Corporation Corrugated tube and wire harness
CN108480442A (zh) * 2018-05-25 2018-09-04 长园电力技术有限公司 一种电缆金属波纹管的恢复装置

Also Published As

Publication number Publication date
SE356911B (de) 1973-06-12
DE1939402A1 (de) 1970-12-03
FR2100583B1 (de) 1974-05-24
DE1939402B2 (de) 1970-12-03
CA930250A (en) 1973-07-17
AT302779B (de) 1972-10-25
CH532433A (de) 1973-01-15
JPS5017029B1 (de) 1975-06-18
BE753357A (fr) 1970-12-16
FR2100583A1 (de) 1972-03-24
GB1265593A (de) 1972-03-01

Similar Documents

Publication Publication Date Title
US3672196A (en) Method and apparatus for making corrugations in tubes consisting of ductile material
US5106346A (en) Planetary gear system with a set of gears, particularly for devices for coating substrates
GB1461513A (en) Grinding machine for machining workpieces of non-circular cross-sections
JPH0659596B2 (ja) 多角形の外側又は内側輪郭を有する工作物の製造のための方法及びその方法を実施するための装置
US3656331A (en) Apparatus for producing annular corrugated tubing
US3572074A (en) Corrugating methods and apparatus
US4287743A (en) Method and device for the manufacture of helical rotor blanks for helical gear machines
US4869127A (en) Relative rotation transmitting apparatus
US4047418A (en) Combined drawing and straightening machine for metallic tubes or rods
CN213968400U (zh) 一种矫直机
CN108480440A (zh) 一种可变管径的自由曲线弯管机
US3788113A (en) Process and apparatus for forming annular corrugations in metal tubing
US2714919A (en) Apparatus and method for forming seamless flexible tubing
JPH10277651A (ja) 管に輪状波形を付ける装置
US3353389A (en) Apparatus for use in corrugating metal hose
US2069052A (en) Casing machine
JP4456208B2 (ja) スピニング加工装置
JPS5827025B2 (ja) 円筒状物体の製造装置
US2875661A (en) Machines for machining helicoid-shaped pieces
US2086492A (en) Machine for working on curved shafts or the like
US4460346A (en) Eccentric shaft and method of manufacture
KR20020075840A (ko) 선재 가공시스템
CN107750195A (zh) 用于长形产品的剥皮机
JPS6127109A (ja) 長柱体成形装置
SU816628A1 (ru) Станок дл обкатки трубчатыхзАгОТОВОК OC-2