ES290959U - Filetes de rosca perfeccionados para conexiones tubulares. - Google Patents

Filetes de rosca perfeccionados para conexiones tubulares.

Info

Publication number
ES290959U
ES290959U ES1984290959U ES290959U ES290959U ES 290959 U ES290959 U ES 290959U ES 1984290959 U ES1984290959 U ES 1984290959U ES 290959 U ES290959 U ES 290959U ES 290959 U ES290959 U ES 290959U
Authority
ES
Spain
Prior art keywords
tenon
fillet
chevron
flank
complementary
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.)
Granted
Application number
ES1984290959U
Other languages
English (en)
Other versions
ES290959Y (es
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.)
Tubular Corp of America
Original Assignee
Tubular Corp of America
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 Tubular Corp of America filed Critical Tubular Corp of America
Publication of ES290959U publication Critical patent/ES290959U/es
Application granted granted Critical
Publication of ES290959Y publication Critical patent/ES290959Y/es
Expired legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L15/00—Screw-threaded joints; Forms of screw-threads for such joints
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L15/00—Screw-threaded joints; Forms of screw-threads for such joints
    • F16L15/001—Screw-threaded joints; Forms of screw-threads for such joints with conical threads
    • F16L15/004—Screw-threaded joints; Forms of screw-threads for such joints with conical threads with axial sealings having at least one plastically deformable sealing surface
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B17/00—Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings
    • E21B17/02—Couplings; joints
    • E21B17/04—Couplings; joints between rod or the like and bit or between rod and rod or the like
    • E21B17/042—Threaded
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B17/00—Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings
    • E21B17/02—Couplings; joints
    • E21B17/04—Couplings; joints between rod or the like and bit or between rod and rod or the like
    • E21B17/042—Threaded
    • E21B17/0423—Threaded with plural threaded sections, e.g. with two-step threads
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L15/00—Screw-threaded joints; Forms of screw-threads for such joints
    • F16L15/06—Screw-threaded joints; Forms of screw-threads for such joints characterised by the shape of the screw-thread

Landscapes

  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Geology (AREA)
  • Mechanical Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Fluid Mechanics (AREA)
  • Environmental & Geological Engineering (AREA)
  • Physics & Mathematics (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Earth Drilling (AREA)
  • Mutual Connection Of Rods And Tubes (AREA)
  • Non-Disconnectible Joints And Screw-Threaded Joints (AREA)
  • Coupling Device And Connection With Printed Circuit (AREA)
  • Mechanical Coupling Of Light Guides (AREA)
  • Branch Pipes, Bends, And The Like (AREA)
  • Surgical Instruments (AREA)

Abstract

Filetes de rosca perfeccionados para conexiones tubulares, del tipo que tienen un miembro de espiga para montarse con un miembro de caja para formar una junta de tubería, caracterizados por comprender: un miembro de espiga que tiene filetes de espiga con crestas de filete y raíces de filete que son aptos para montarse con un miembro de caja coincidente que tiene una estructura de filete complementaria, formándose dichas crestas de filete de espiga entre un flanco de apoyo y un flanco de carga de dicho filete de espiga, teniendo dicho filete de espiga un flanco de carga en forma chevron para empeñar un flanco de carga de forma chevron coincidente de dicho miembro de caja complementario para proporcionar un interacoplamiento de tipo chevron entre los flancos de sirviendo dicho interacoplamiento de tipo chevron para limitar el movimiento radial de dichos filetes de espiga en dicha estructura de filete complementaria de miembro de caja coincidente para controlar el acoplamiento radial de dichajunta de tubería, y en donde dichos filetes de espiga y de caja están estructura dos helicoidalmente como una cuna.
ES1984290959U 1983-12-23 1984-12-21 Filetes de rosca perfeccionados para conexiones tubulares. Expired ES290959Y (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US06/565,051 US4600224A (en) 1983-12-23 1983-12-23 Tubular connection having a chevron wedge thread

Publications (2)

Publication Number Publication Date
ES290959U true ES290959U (es) 1986-10-16
ES290959Y ES290959Y (es) 1987-06-16

Family

ID=24257013

Family Applications (1)

Application Number Title Priority Date Filing Date
ES1984290959U Expired ES290959Y (es) 1983-12-23 1984-12-21 Filetes de rosca perfeccionados para conexiones tubulares.

Country Status (11)

Country Link
US (1) US4600224A (es)
EP (1) EP0147358A3 (es)
JP (1) JPS60157582A (es)
KR (1) KR850004530A (es)
AU (1) AU582737B2 (es)
BR (1) BR8406627A (es)
CA (1) CA1236502A (es)
DK (1) DK603184A (es)
ES (1) ES290959Y (es)
NO (1) NO845113L (es)
NZ (1) NZ210700A (es)

Families Citing this family (121)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5348350A (en) * 1980-01-19 1994-09-20 Ipsco Enterprises Inc. Pipe coupling
USRE34467E (en) * 1983-04-29 1993-12-07 The Hydril Company Tubular connection
US4703954A (en) * 1985-11-08 1987-11-03 Hydril Company Threaded pipe connection having wedge threads
DE3640312A1 (de) * 1986-11-26 1988-06-09 Tox Duebel Werk Spreizduebel
US4822081A (en) * 1987-03-23 1989-04-18 Xl Systems Driveable threaded tubular connection
US4810149A (en) * 1987-09-17 1989-03-07 Lee Jae B Screw-type fastening device
US4850775A (en) * 1988-04-26 1989-07-25 Lee Jae B Screw-type fastening device
JPH03128767A (ja) * 1989-10-13 1991-05-31 Jidosha Kiki Co Ltd バルブスリーブ
US5468029A (en) * 1990-01-19 1995-11-21 Ipsco Enterprises Inc. Pipe coupling
US5498035A (en) * 1990-01-19 1996-03-12 Blose; Thomas L. Pipe coupling
WO1999008034A1 (en) * 1997-08-11 1999-02-18 Marubeni Tubulars, Inc. Tubular connection
US6024646A (en) * 1997-10-02 2000-02-15 Ipsco Enterprises Inc. Swaged pin end of pipe connection
AU715952B1 (en) * 1998-07-30 2000-02-10 Hydril Company Tubular joint wear indicator
US7690696B2 (en) * 1999-04-19 2010-04-06 Hydril Company Wedge thread with torque shoulder
US6254146B1 (en) * 1999-04-23 2001-07-03 John Gandy Corporation Thread form with multifacited flanks
WO2001029475A1 (en) 1999-10-20 2001-04-26 Beverly Watts Ramos Open type wedgethread connection
US6572315B1 (en) * 2000-01-06 2003-06-03 Gary Jack Reed Threaded fastener having a thread crest greater than its thread root
US7833250B2 (en) 2004-11-10 2010-11-16 Jackson Roger P Polyaxial bone screw with helically wound capture connection
US7837716B2 (en) * 2000-08-23 2010-11-23 Jackson Roger P Threadform for medical implant closure
US6530607B1 (en) * 2000-11-06 2003-03-11 Hydril Company Two-step threaded connector having differential thread width
US6726689B2 (en) 2002-09-06 2004-04-27 Roger P. Jackson Helical interlocking mating guide and advancement structure
US6997927B2 (en) * 2000-12-08 2006-02-14 Jackson Roger P closure for rod receiving orthopedic implant having a pair of spaced apertures for removal
US8377100B2 (en) 2000-12-08 2013-02-19 Roger P. Jackson Closure for open-headed medical implant
US8353932B2 (en) 2005-09-30 2013-01-15 Jackson Roger P Polyaxial bone anchor assembly with one-piece closure, pressure insert and plastic elongate member
US10258382B2 (en) 2007-01-18 2019-04-16 Roger P. Jackson Rod-cord dynamic connection assemblies with slidable bone anchor attachment members along the cord
US8292926B2 (en) 2005-09-30 2012-10-23 Jackson Roger P Dynamic stabilization connecting member with elastic core and outer sleeve
US10729469B2 (en) 2006-01-09 2020-08-04 Roger P. Jackson Flexible spinal stabilization assembly with spacer having off-axis core member
US7862587B2 (en) 2004-02-27 2011-01-04 Jackson Roger P Dynamic stabilization assemblies, tool set and method
US6767035B2 (en) * 2002-03-11 2004-07-27 Weatherford/Lamb, Inc. High torque modified profile threaded tubular connection
US6976711B2 (en) * 2002-04-19 2005-12-20 Hydril Company Lp Threaded connection especially for radially plastically expandable conduit
US20040167525A1 (en) * 2002-09-06 2004-08-26 Jackson Roger P. Anti-splay medical implant closure with multi-stepped removal counterbore
US8876868B2 (en) 2002-09-06 2014-11-04 Roger P. Jackson Helical guide and advancement flange with radially loaded lip
US8257402B2 (en) 2002-09-06 2012-09-04 Jackson Roger P Closure for rod receiving orthopedic implant having left handed thread removal
US8282673B2 (en) 2002-09-06 2012-10-09 Jackson Roger P Anti-splay medical implant closure with multi-surface removal aperture
US20040167524A1 (en) * 2002-09-06 2004-08-26 Jackson Roger P. Anti-splay medical implant closure with central multi-surface insertion and removal aperture
WO2006052796A2 (en) * 2004-11-10 2006-05-18 Jackson Roger P Helical guide and advancement flange with break-off extensions
US7621918B2 (en) 2004-11-23 2009-11-24 Jackson Roger P Spinal fixation tool set and method
US7377923B2 (en) 2003-05-22 2008-05-27 Alphatec Spine, Inc. Variable angle spinal screw assembly
US7204838B2 (en) * 2004-12-20 2007-04-17 Jackson Roger P Medical implant fastener with nested set screw and method
US7776067B2 (en) 2005-05-27 2010-08-17 Jackson Roger P Polyaxial bone screw with shank articulation pressure insert and method
US8137386B2 (en) 2003-08-28 2012-03-20 Jackson Roger P Polyaxial bone screw apparatus
US8936623B2 (en) 2003-06-18 2015-01-20 Roger P. Jackson Polyaxial bone screw assembly
US8398682B2 (en) 2003-06-18 2013-03-19 Roger P. Jackson Polyaxial bone screw assembly
US8092500B2 (en) 2007-05-01 2012-01-10 Jackson Roger P Dynamic stabilization connecting member with floating core, compression spacer and over-mold
US8366753B2 (en) 2003-06-18 2013-02-05 Jackson Roger P Polyaxial bone screw assembly with fixed retaining structure
US7766915B2 (en) 2004-02-27 2010-08-03 Jackson Roger P Dynamic fixation assemblies with inner core and outer coil-like member
US7967850B2 (en) 2003-06-18 2011-06-28 Jackson Roger P Polyaxial bone anchor with helical capture connection, insert and dual locking assembly
US7513537B2 (en) * 2003-10-22 2009-04-07 Frank's Casing Crew & Rental Tools, Inc. Tubular connection with slotted threads
US7527638B2 (en) 2003-12-16 2009-05-05 Depuy Spine, Inc. Methods and devices for minimally invasive spinal fixation element placement
US11419642B2 (en) 2003-12-16 2022-08-23 Medos International Sarl Percutaneous access devices and bone anchor assemblies
US7179261B2 (en) 2003-12-16 2007-02-20 Depuy Spine, Inc. Percutaneous access devices and bone anchor assemblies
US8152810B2 (en) 2004-11-23 2012-04-10 Jackson Roger P Spinal fixation tool set and method
US7160300B2 (en) 2004-02-27 2007-01-09 Jackson Roger P Orthopedic implant rod reduction tool set and method
JP2007525274A (ja) 2004-02-27 2007-09-06 ロジャー・ピー・ジャクソン 整形外科インプラントロッド整復器具セット及び方法
US7651502B2 (en) 2004-09-24 2010-01-26 Jackson Roger P Spinal fixation tool set and method for rod reduction and fastener insertion
US7380840B2 (en) * 2004-10-26 2008-06-03 Hydril Company Expandable threaded connection
US8926672B2 (en) 2004-11-10 2015-01-06 Roger P. Jackson Splay control closure for open bone anchor
US9168069B2 (en) 2009-06-15 2015-10-27 Roger P. Jackson Polyaxial bone anchor with pop-on shank and winged insert with lower skirt for engaging a friction fit retainer
US9980753B2 (en) 2009-06-15 2018-05-29 Roger P Jackson pivotal anchor with snap-in-place insert having rotation blocking extensions
US8444681B2 (en) 2009-06-15 2013-05-21 Roger P. Jackson Polyaxial bone anchor with pop-on shank, friction fit retainer and winged insert
US9216041B2 (en) 2009-06-15 2015-12-22 Roger P. Jackson Spinal connecting members with tensioned cords and rigid sleeves for engaging compression inserts
WO2006057837A1 (en) 2004-11-23 2006-06-01 Jackson Roger P Spinal fixation tool attachment structure
US10076361B2 (en) 2005-02-22 2018-09-18 Roger P. Jackson Polyaxial bone screw with spherical capture, compression and alignment and retention structures
US7901437B2 (en) 2007-01-26 2011-03-08 Jackson Roger P Dynamic stabilization member with molded connection
KR100741293B1 (ko) * 2005-08-30 2007-07-23 주식회사 솔고 바이오메디칼 다중축 척추 고정 나사
US7549682B2 (en) * 2005-09-19 2009-06-23 Vetco Gray Inc. Threaded pipe connector
US8105368B2 (en) 2005-09-30 2012-01-31 Jackson Roger P Dynamic stabilization connecting member with slitted core and outer sleeve
US7686350B2 (en) * 2006-03-30 2010-03-30 Hydril Llc Mismatched flanks for a wedge thread
US7588269B2 (en) * 2006-09-26 2009-09-15 Gandy Technologies Corporation Z-shaped thread form for tubular connections
JP2010512178A (ja) 2006-12-08 2010-04-22 ロジャー・ピー・ジャクソン 動的脊椎インプラントのためのツールシステム
US8475498B2 (en) 2007-01-18 2013-07-02 Roger P. Jackson Dynamic stabilization connecting member with cord connection
US8366745B2 (en) 2007-05-01 2013-02-05 Jackson Roger P Dynamic stabilization assembly having pre-compressed spacers with differential displacements
US8012177B2 (en) 2007-02-12 2011-09-06 Jackson Roger P Dynamic stabilization assembly with frusto-conical connection
US10383660B2 (en) 2007-05-01 2019-08-20 Roger P. Jackson Soft stabilization assemblies with pretensioned cords
US7690697B2 (en) 2007-05-09 2010-04-06 Gandy Technologies Corp. Thread form for tubular connections
US8602781B2 (en) * 2007-05-16 2013-12-10 Gary J. Reed Dental implant with interlocking and centering threads
EP2160158A4 (en) 2007-05-31 2013-06-26 Roger P Jackson DYNAMIC STABILIZATION CONNECTING ELEMENT WITH PRE-STRENGTH SOLID CORE
KR100829430B1 (ko) * 2007-07-16 2008-05-15 주식회사 거봉 보일러 배관 연결장치
US8911477B2 (en) 2007-10-23 2014-12-16 Roger P. Jackson Dynamic stabilization member with end plate support and cable core extension
DE102007052042A1 (de) * 2007-10-30 2009-05-14 Kilian Kraus Höhenverstellbares Wirbelsäulenimplantat
WO2010147639A1 (en) 2008-08-01 2010-12-23 Jackson Roger P Longitudinal connecting member with sleeved tensioned cords
US8136846B2 (en) * 2008-11-17 2012-03-20 Gandy Technologies Corporation Cylindrical tapered thread form for tubular connections
FR2945850B1 (fr) * 2009-05-20 2011-06-24 Vallourec Mannesmann Oil & Gas Ensemble pour la fabrication d'un joint filete pour le forage et l'exploitation des puits d'hydrocarbures et joint filete resultant
EP2753252A1 (en) 2009-06-15 2014-07-16 Jackson, Roger P. Polyaxial bone anchor with pop-on shank and friction fit retainer with low profile edge lock
US9668771B2 (en) 2009-06-15 2017-06-06 Roger P Jackson Soft stabilization assemblies with off-set connector
US11229457B2 (en) 2009-06-15 2022-01-25 Roger P. Jackson Pivotal bone anchor assembly with insert tool deployment
WO2013043218A1 (en) 2009-06-15 2013-03-28 Jackson Roger P Polyaxial bone anchor with pop-on shank and winged insert with friction fit compressive collet
US8267436B2 (en) * 2009-07-08 2012-09-18 Gandy Technologies Corporation Arrow-shaped thread form for tubular connections
AU2010303934B2 (en) 2009-10-05 2014-03-27 Roger P. Jackson Polyaxial bone anchor with non-pivotable retainer and pop-on shank, some with friction fit
FR2953272B1 (fr) * 2009-11-30 2011-12-16 Vallourec Mannesmann Oil & Gas Joint filete
JP2013540468A (ja) 2010-09-08 2013-11-07 ロジャー・ピー・ジャクソン 弾性部および非弾性部を有する動的固定化部材
JP2013545527A (ja) 2010-11-02 2013-12-26 ロジャー・ピー・ジャクソン ポップオン式シャンクと枢動可能な保持部とを有する多軸の骨アンカー
WO2012128825A1 (en) 2011-03-24 2012-09-27 Jackson Roger P Polyaxial bone anchor with compound articulation and pop-on shank
JP5868646B2 (ja) * 2011-09-28 2016-02-24 三菱重工コンプレッサ株式会社 回転機械
US8911479B2 (en) 2012-01-10 2014-12-16 Roger P. Jackson Multi-start closures for open implants
BR112014026716A2 (pt) * 2012-04-27 2017-06-27 Axon Ep Inc conexões flexíveis
US8911478B2 (en) 2012-11-21 2014-12-16 Roger P. Jackson Splay control closure for open bone anchor
US9677346B2 (en) 2012-11-28 2017-06-13 Ultra Premium Oilfield Services, Ltd. Tubular connection with helically extending torque shoulder
US9869139B2 (en) 2012-11-28 2018-01-16 Ultra Premium Oilfield Services, Ltd. Tubular connection with helically extending torque shoulder
WO2014105222A1 (en) 2012-12-31 2014-07-03 North American Specialty Products Llc Flush joint pipe
US10058354B2 (en) 2013-01-28 2018-08-28 Roger P. Jackson Pivotal bone anchor assembly with frictional shank head seating surfaces
US8852239B2 (en) 2013-02-15 2014-10-07 Roger P Jackson Sagittal angle screw with integral shank and receiver
US9526547B2 (en) * 2013-03-06 2016-12-27 Rgt Scientific Inc. Bone screw
US10322006B2 (en) * 2013-03-15 2019-06-18 Globus Medical, Inc. Interbody standalone intervertebral implant
CN104060946A (zh) * 2013-03-21 2014-09-24 宝山钢铁股份有限公司 超高抗扭金属气密封钻杆接头
US9566092B2 (en) 2013-10-29 2017-02-14 Roger P. Jackson Cervical bone anchor with collet retainer and outer locking sleeve
US9717533B2 (en) 2013-12-12 2017-08-01 Roger P. Jackson Bone anchor closure pivot-splay control flange form guide and advancement structure
US9451993B2 (en) 2014-01-09 2016-09-27 Roger P. Jackson Bi-radial pop-on cervical bone anchor
US9597119B2 (en) 2014-06-04 2017-03-21 Roger P. Jackson Polyaxial bone anchor with polymer sleeve
US10064658B2 (en) 2014-06-04 2018-09-04 Roger P. Jackson Polyaxial bone anchor with insert guides
US9593786B1 (en) 2014-10-01 2017-03-14 Precision Couplings, Llc Leak proof threaded connector
US10309198B2 (en) * 2015-01-05 2019-06-04 Morph Packers Limited Pipe coupling
EP3409991B1 (en) * 2016-01-25 2020-05-20 Nippon Steel Corporation Threaded joint for steel pipe
BR112019017165B1 (pt) 2017-03-31 2023-01-24 Nippon Steel Corporation Conexão roscada para tubo de aço
US11382724B2 (en) 2017-10-11 2022-07-12 Evollution Ip Holdings, Inc. Three-dimensional stabilization thread form for dental implants
EP3473798B2 (en) * 2017-10-20 2025-06-18 Vallourec Oil And Gas France Threaded connection partially in a self-locking engagement
WO2019126509A1 (en) * 2017-12-21 2019-06-27 Ultra Premium Services, L.L.C. Threadform having crest to root thread compound relief areas
WO2019126522A1 (en) * 2017-12-21 2019-06-27 Ultra Premium Services, L.L.C. Wedge threadform having crest to root thread compound relief areas
GB201906288D0 (en) * 2019-05-03 2019-06-19 Oil States Ind Uk Ltd Pipe coupling
CN113873958B (zh) * 2019-05-09 2024-05-28 香港大学 骨螺钉的新型螺纹设计
CA3144973A1 (en) * 2019-07-12 2021-01-21 Hydril Company Threaded connection for exploration and production of a hydrocarbon well

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Also Published As

Publication number Publication date
EP0147358A3 (en) 1987-08-19
CA1236502A (en) 1988-05-10
EP0147358A2 (en) 1985-07-03
NZ210700A (en) 1986-09-10
BR8406627A (pt) 1985-10-15
ES290959Y (es) 1987-06-16
AU582737B2 (en) 1989-04-13
NO845113L (no) 1985-06-24
DK603184D0 (da) 1984-12-17
AU3715584A (en) 1985-07-04
US4600224A (en) 1986-07-15
DK603184A (da) 1985-06-24
KR850004530A (ko) 1985-07-15
JPS60157582A (ja) 1985-08-17

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