DE10309263B8 - Geberträger für ein innerhalb von Rohren einsetzbares Inspektionsgerät (Ausführungsformen) - Google Patents

Geberträger für ein innerhalb von Rohren einsetzbares Inspektionsgerät (Ausführungsformen) Download PDF

Info

Publication number
DE10309263B8
DE10309263B8 DE10309263A DE10309263A DE10309263B8 DE 10309263 B8 DE10309263 B8 DE 10309263B8 DE 10309263 A DE10309263 A DE 10309263A DE 10309263 A DE10309263 A DE 10309263A DE 10309263 B8 DE10309263 B8 DE 10309263B8
Authority
DE
Germany
Prior art keywords
inspection device
inserted inside
transducer carrier
inside pipes
pipes
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 - Fee Related
Application number
DE10309263A
Other languages
English (en)
Other versions
DE10309263A1 (de
DE10309263B4 (de
Inventor
Uriy Anatolievich Sapelnikov
Boris Vladimirovich Kozyrev
Mikhail Semenovich Matveev
Dmitry Germanovich Chernov
Vladimir Nikolaevich Eliseev
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.)
Weatherford Technology Holdings LLC
Original Assignee
Weatherford Lamb Inc
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 Weatherford Lamb Inc filed Critical Weatherford Lamb Inc
Publication of DE10309263A1 publication Critical patent/DE10309263A1/de
Application granted granted Critical
Publication of DE10309263B4 publication Critical patent/DE10309263B4/de
Publication of DE10309263B8 publication Critical patent/DE10309263B8/de
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • F16L55/00—Devices or appurtenances for use in, or in connection with, pipes or pipe systems
    • F16L55/26—Pigs or moles, i.e. devices movable in a pipe or conduit with or without self-contained propulsion means
    • F16L55/28—Constructional aspects
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N2291/00—Indexing codes associated with group G01N29/00
    • G01N2291/02—Indexing codes associated with the analysed material
    • G01N2291/028—Material parameters
    • G01N2291/02827—Elastic parameters, strength or force
DE10309263A 2002-03-28 2003-03-03 Geberträger für ein innerhalb von Rohren einsetzbares Inspektionsgerät (Ausführungsformen) Expired - Fee Related DE10309263B8 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
RU2002-2107747 2002-03-28
RU2002107747/28A RU2204113C1 (ru) 2002-03-28 2002-03-28 Носитель датчиков для внутритрубного инспекционного снаряда (варианты)

Publications (3)

Publication Number Publication Date
DE10309263A1 DE10309263A1 (de) 2003-10-16
DE10309263B4 DE10309263B4 (de) 2007-09-13
DE10309263B8 true DE10309263B8 (de) 2009-01-29

Family

ID=20255484

Family Applications (1)

Application Number Title Priority Date Filing Date
DE10309263A Expired - Fee Related DE10309263B8 (de) 2002-03-28 2003-03-03 Geberträger für ein innerhalb von Rohren einsetzbares Inspektionsgerät (Ausführungsformen)

Country Status (6)

Country Link
US (1) US7240574B2 (de)
AU (1) AU2003211774A1 (de)
DE (1) DE10309263B8 (de)
RU (1) RU2204113C1 (de)
UA (1) UA73998C2 (de)
WO (1) WO2003083357A1 (de)

Families Citing this family (53)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005249680A (ja) * 2004-03-05 2005-09-15 Denso Corp 荷重センサの取付構造
GB0428127D0 (en) * 2004-12-22 2005-01-26 Pll Ltd A sensor system for an in-line inspection tool
US7821247B2 (en) * 2005-01-27 2010-10-26 Shell Oil Company System and method for measuring electric current in a pipeline
US7317308B2 (en) * 2005-01-27 2008-01-08 Shell Oil Company System and method for measuring electric current in a pipeline
GB0505506D0 (en) * 2005-03-17 2005-04-27 Pll Ltd A sensor system for an in-line inspection tool
CA2520302A1 (en) * 2005-04-01 2006-10-01 Intratech Inline Inspection Services Ltd. Pipeline inspection tool
RU2298784C1 (ru) * 2005-12-21 2007-05-10 Александр Максимилианович Попович Механизм крепления датчика к корпусу внутритрубного дефектоскопа
RU2298783C1 (ru) * 2005-12-21 2007-05-10 Александр Максимилианович Попович Механизм крепления датчика к корпусу внутритрубного дефектоскопа
GB2437547B (en) * 2006-04-28 2010-07-14 Genesis Oil And Gas Consultant Method and apparatus for inspecting pipes
WO2009001022A1 (en) * 2007-06-27 2008-12-31 Petróleo Brasileiro S A - Petrobras Profiling pig for detecting and quantifying internal corrosion in pipes
US7698937B2 (en) * 2007-10-18 2010-04-20 Neidhardt Deitmar J Method and apparatus for detecting defects in oilfield tubulars
RU2485388C2 (ru) * 2008-01-11 2013-06-20 ПиАйАй Лимитед Устройство и блок датчиков для контроля трубопровода с использованием ультразвуковых волн двух разных типов
US8816866B2 (en) * 2008-04-17 2014-08-26 Daniel Measurement & Control, Inc. Sonic detection of flow state change for measurement stations
US8650695B2 (en) * 2009-01-16 2014-02-18 Tdw Delaware Inc. Pipeline cleaning pig with self-energizing diagonally oriented scrapers
US8347724B2 (en) * 2009-03-05 2013-01-08 Alstom Technology Ltd Low profile ultrasound inspection scanner
DE102009047317A1 (de) * 2009-10-01 2011-04-07 Intelligendt Systems & Services Gmbh Verfahren und Vorrichtung zur Ultraschallprüfung
FR2960960B1 (fr) * 2010-06-03 2012-07-20 V & M France Procede et dispositif d'aide au controle en production de la traversabilite de tubes
CA3116787C (en) 2010-06-16 2023-07-11 Mueller International, Llc Infrastructure monitoring devices, systems, and methods
DE102010040274A1 (de) * 2010-09-06 2012-03-08 Intelligendt Systems & Services Gmbh Vorrichtung zum Innenprüfen eines eine hohlzylindrische Bohrung aufweisenden Werkstückes
EP2527708A1 (de) * 2011-05-26 2012-11-28 Pii Limited Vorrichtung zur Inspektion von Pipelines und Pipeline-Inspektionsverfahren
EP2527709A1 (de) * 2011-05-26 2012-11-28 Pii Limited Vorrichtung zur Leitungsprüfung
EP2527710A1 (de) * 2011-05-26 2012-11-28 Pii Limited Vorrichtung zur Pipeline-Inspektion und Verfahren zur Pipeline-Inspektion
EP2527707A1 (de) * 2011-05-26 2012-11-28 Pii Limited Vorrichtung zur Leitungsprüfung
US9772250B2 (en) 2011-08-12 2017-09-26 Mueller International, Llc Leak detector and sensor
DE102012009347A1 (de) * 2012-05-09 2013-11-14 Eisenmann Ag System zur Erfassung eines Querschnittsprofils
MY175444A (en) 2012-10-26 2020-06-26 Mueller Int Llc Detecting leaks in a fluid distribution system
US20140352438A1 (en) * 2013-05-28 2014-12-04 General Electric Company Device for ultrasonic inspection
EA029805B1 (ru) * 2013-07-30 2018-05-31 Публичное Акционерное Общество "Транснефть" Носитель датчиков ультразвукового дефектоскопа
RU2554323C1 (ru) * 2014-06-03 2015-06-27 Открытое акционерное общество "Акционерная компания по транспорту нефти "Транснефть" (ОАО "АК"Транснефть") Способ ультразвуковой толщинометрии с высоким разрешением
US9739411B1 (en) * 2014-08-06 2017-08-22 The United States Of Americas As Represented By The Administrator Of The National Aeronautics And Space Administration System and method for traversing pipes
US9528903B2 (en) 2014-10-01 2016-12-27 Mueller International, Llc Piezoelectric vibration sensor for fluid leak detection
US10036680B2 (en) 2015-03-19 2018-07-31 General Electric Company Pipeline sensor carrier
US10920919B2 (en) * 2015-12-18 2021-02-16 Shell Oil Company Inspecting a length of pipe, and inspection pig
US10283857B2 (en) 2016-02-12 2019-05-07 Mueller International, Llc Nozzle cap multi-band antenna assembly
US10305178B2 (en) 2016-02-12 2019-05-28 Mueller International, Llc Nozzle cap multi-band antenna assembly
US10401325B2 (en) 2016-08-11 2019-09-03 Novitech, Inc. Magnetizers for pigging tools
FR3060754B1 (fr) * 2016-12-19 2020-09-25 Safran Dispositif et procede de caracterisation non-destructive d'un materiau
RU170507U1 (ru) * 2016-12-20 2017-04-26 Федеральное государственное автономное научное учреждение "Центральный научно-исследовательский и опытно-конструкторский институт робототехники и технической кибернетики" (ЦНИИ РТК) Устройство ультразвукового контроля труб, патрубков, корпусов цилиндрической формы, имеющих ступенчатое внутреннее сечение
RU175588U1 (ru) * 2017-06-16 2017-12-11 Закрытое акционерное общество "Ультракрафт" Модульный ультразвуковой преобразователь для неразрушающего контроля
FR3068134B1 (fr) * 2017-06-23 2021-01-08 Vallourec Tubes France Controle non destructif pour produit tubulaire a forme complexe
RU2663323C1 (ru) * 2017-09-07 2018-08-03 Публичное акционерное общество "Транснефть" (ПАО "Транснефть") Магнитная система продольного намагничивания дефектоскопа для диагностики толстостенных трубопроводов малого диаметра
US10545121B2 (en) * 2018-05-23 2020-01-28 Pii Pipetronix Gmbh Pipeline inspection systems and methods
US10859462B2 (en) 2018-09-04 2020-12-08 Mueller International, Llc Hydrant cap leak detector with oriented sensor
RU2687846C1 (ru) * 2018-10-29 2019-05-16 Публичное акционерное общество "Транснефть" (ПАО "Транснефть") Способ определения толщины стенки трубопровода в зоне дефекта типа "потеря металла" на основе статистической стабилизации параметров сигнала по данным ультразвуковой секции WM
RU2692870C1 (ru) * 2018-12-11 2019-06-28 Публичное акционерное общество "Транснефть" (ПАО "Транснефть") Носитель датчиков дефектоскопа внутритрубного ультразвукового
RU2692869C1 (ru) * 2018-12-11 2019-06-28 Публичное акционерное общество "Транснефть" (ПАО "Транснефть") Носитель датчиков внутритрубного ультразвукового дефектоскопа
RU2692868C1 (ru) * 2018-12-17 2019-06-28 Публичное акционерное общество "Транснефть" (ПАО "Транснефть") Носитель датчиков дефектоскопа внутритрубного ультразвукового
US11342656B2 (en) 2018-12-28 2022-05-24 Mueller International, Llc Nozzle cap encapsulated antenna system
US11473993B2 (en) 2019-05-31 2022-10-18 Mueller International, Llc Hydrant nozzle cap
US11542690B2 (en) 2020-05-14 2023-01-03 Mueller International, Llc Hydrant nozzle cap adapter
CN111336906B (zh) * 2020-05-20 2020-08-14 广东电网有限责任公司东莞供电局 一种电力管道内变形测量装置
RU2761415C1 (ru) * 2021-06-03 2021-12-08 Публичное акционерное общество "Транснефть" (ПАО "Транснефть") НОСИТЕЛЬ ДАТЧИКОВ ДЛЯ КОНТРОЛЯ ТРУБОПРОВОДОВ С ИСПОЛЬЗОВАНИЕМ ДИФРАКЦИОННО-ВРЕМЕННОГО МЕТОДА ToFD
CN115930891B (zh) * 2022-12-26 2023-08-25 浙江海普管业有限公司 一种用于检测pvc排水管形变的装置

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4342225A (en) * 1979-11-23 1982-08-03 Ceske Plunarenske Pdniky, Koncern Device for the internal inspection of pipelines
DE3511076A1 (de) * 1985-03-27 1986-10-09 Kopp AG International Pipeline Services, 4450 Lingen Molch fuer elektromagnetische pruefungen an rohrleitungswandungen aus stahl sowie verfahren hierzu
WO2000008378A1 (fr) * 1998-08-04 2000-02-17 Chernyaev Konstantin Valerievi Dispositif permettant de mesurer et de controler sans causer de dommages le materiau dont est fait un conduit
DE20000804U1 (de) * 2000-01-19 2001-06-07 Eder Gerhard Molch, vorzugsweise Inspektionsmolch zur elektromagnetischen Prüfung von Rohrleitungswandungen
DE10210746C1 (de) * 2002-03-12 2003-10-16 Ndt System & Services Ag Segment für einen Sensorträgerkörper eines Molches

Family Cites Families (42)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB939172A (en) 1961-04-07 1963-10-09 G V Planer Ltd Improved band belt or the like
US3449662A (en) 1963-10-16 1969-06-10 American Mach & Foundry Magnetic inspection method and apparatus using resilient magnetizing means and resilient sensors
US3443211A (en) 1965-04-01 1969-05-06 American Mach & Foundry Magnetometer inspection apparatus for ferromagnetic objects
US3539915A (en) 1967-11-03 1970-11-10 American Mach & Foundry Pipeline inspection apparatus for detection of longitudinal defects by flux leakage inspection of circumferential magnetic field
US3529236A (en) 1967-11-03 1970-09-15 American Mach & Foundry Magnetic flux sensors having core structure of generally closed configuration for use in nondestructive testing
US3496457A (en) 1967-11-03 1970-02-17 American Mach & Foundry Signal normalization apparatus for pipeline logging
US3543144A (en) 1968-09-23 1970-11-24 American Mach & Foundry Magnetic inspection apparatus for well pipe utilizing detector shoes with outriggers and magnetic latching means for said shoes
US3755908A (en) 1971-01-13 1973-09-04 Williamson Inc T Pipeline pig
US3810384A (en) 1971-02-01 1974-05-14 D Evans Ultrasonic pipeline inspection device
US3786684A (en) 1971-12-27 1974-01-22 Automation Ind Inc Pipeline inspection pig
CA990855A (en) 1973-02-13 1976-06-08 Transcanada Pipelines Limited Speed compensation of information-containing signals
US3949292A (en) 1974-03-15 1976-04-06 Vetco Offshore Industries, Inc. Pipeline inspection device with pivotal support structure
US3967194A (en) 1974-03-15 1976-06-29 Vetco Offshore Industries Method for flaw location in a magnetizable pipeline by use of magnetic markers positioned outside of said pipeline
US3940689A (en) 1974-05-14 1976-02-24 Schlumberger Technology Corporation Combined eddy current and leakage field detector for well bore piping using a unique magnetizer core structure
FR2320542A1 (fr) * 1975-08-07 1977-03-04 Commissariat Energie Atomique Dispositif de controle a courants de foucault pour tubes metalliques cintres au moins localement
CA1035019A (en) 1975-11-12 1978-07-18 Patrick C. Porter Accelerometer pig
US4098126A (en) 1976-04-06 1978-07-04 British Gas Corporation Non-destructive testing of pipeline
GB2020023A (en) 1978-03-09 1979-11-07 Pantatron Systems Ltd Pipe-line inspection apparatus
NL174296C (nl) * 1978-04-12 1984-05-16 British Gas Corp Inrichting voor het inspecteren van een pijpleiding.
US4402213A (en) * 1980-10-14 1983-09-06 Agl Corporation Method and device for detecting and locating leaks in pipelines
US4598250A (en) 1982-02-19 1986-07-01 Magnaflux Pipeline Services, Inc. Corrosion sensor device including side-by-side bar magnets surrounded by a coil
US4457073A (en) 1982-09-28 1984-07-03 T. D. Williamson, Inc. Pipeline pig having improved means of sensing changes in the internal configuration of a pipeline
SU1157443A1 (ru) 1983-12-19 1985-05-23 Уфимский Нефтяной Институт Магниточувствительный узел к магнитному дефектоскопу
DE3506622A1 (de) 1985-02-26 1986-08-28 Hermann Dipl.-Ing. 4450 Lingen Rosen Molch fuer eine fortlaufende messung und registrierung der innengeometrie einer rohrleitung
US4953412A (en) 1986-01-17 1990-09-04 T. D. Williamson, Inc. Pipeline caliper pig
US4717875A (en) 1986-02-19 1988-01-05 Atlantic Richfield Company Method and system for determining curvature in fluid transmission pipelines
DE3626646A1 (de) * 1986-08-06 1988-02-18 Pipetronix Gmbh Geraet zum messen und zur zerstoerungsfreien werkstoffpruefung an verlegten rohrleitungen
DE3706660A1 (de) 1987-03-02 1988-09-15 Rosen Engineering Gmbh H Messmolch
DE3719492C2 (de) 1987-06-11 1995-04-13 Pipetronix Gmbh Beulensuchmolch
US5115196A (en) 1988-06-01 1992-05-19 Atlantic Richfield Company Girth weld detection system for pipeline survey pig
US4910877A (en) 1988-07-18 1990-03-27 The United States Of America As Represented By The United States Department Of Energy Tube curvature measuring probe and method
US4945306A (en) 1988-10-25 1990-07-31 Atlantic Richfield Coil and Hall device circuit for sensing magnetic fields
SU1629683A1 (ru) * 1989-03-30 1991-02-23 Саратовский филиал Специального конструкторского бюро Всесоюзного научно-производственного объединения "Союзгазавтоматика" Устройство дл контрол и регистрации нарушений гладкости внутренней поверхности труб и пространственно-геометрических параметров трубопроводов
US5398560A (en) * 1993-07-12 1995-03-21 The United States Of America As Represented By The United States Department Of Energy Apparatus for inspecting piping
JP3040641B2 (ja) * 1993-08-04 2000-05-15 三菱重工業株式会社 管内挿型超音波探触子
RU2111453C1 (ru) * 1993-09-02 1998-05-20 Центральный научно-исследовательский институт "Гидроприбор" Универсальный диагностический снаряд-дефектоскоп для контроля за состоянием трубопровода
US5460046A (en) 1994-05-25 1995-10-24 Tdw Delaware, Inc. Method and apparatus for ultrasonic pipeline inspection
DE19502764A1 (de) * 1995-01-30 1996-08-01 Pipetronix Gmbh Verfahren und Vorrichtung zum Prüfen von gasführenden Rohrleitungen
DE19747551C2 (de) 1997-10-28 1999-12-23 Fitr Ges Fuer Innovation Im Ti Prüfvorrichtung und -verfahren zur Zustandserkennung und Diagnose von Hohlräumen wie Rohre oder Kanäle
RU2139468C1 (ru) 1998-08-04 1999-10-10 Черняев Константин Валерьевич Устройство для измерения и неразрушающего контроля материала трубопровода
RU2139469C1 (ru) 1998-08-04 1999-10-10 Черняев Константин Валерьевич Устройство для измерения и неразрушающего контроля материала трубопровода
DE10262232B4 (de) * 2002-01-22 2008-07-03 Pii Pipetronix Gmbh Verfahren und Vorrichtung zum Untersuchen von Rohrleitungen

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4342225A (en) * 1979-11-23 1982-08-03 Ceske Plunarenske Pdniky, Koncern Device for the internal inspection of pipelines
DE3511076A1 (de) * 1985-03-27 1986-10-09 Kopp AG International Pipeline Services, 4450 Lingen Molch fuer elektromagnetische pruefungen an rohrleitungswandungen aus stahl sowie verfahren hierzu
WO2000008378A1 (fr) * 1998-08-04 2000-02-17 Chernyaev Konstantin Valerievi Dispositif permettant de mesurer et de controler sans causer de dommages le materiau dont est fait un conduit
DE20000804U1 (de) * 2000-01-19 2001-06-07 Eder Gerhard Molch, vorzugsweise Inspektionsmolch zur elektromagnetischen Prüfung von Rohrleitungswandungen
DE10210746C1 (de) * 2002-03-12 2003-10-16 Ndt System & Services Ag Segment für einen Sensorträgerkörper eines Molches

Also Published As

Publication number Publication date
US7240574B2 (en) 2007-07-10
RU2204113C1 (ru) 2003-05-10
AU2003211774A1 (en) 2003-10-13
US20030183022A1 (en) 2003-10-02
DE10309263A1 (de) 2003-10-16
UA73998C2 (uk) 2005-10-17
DE10309263B4 (de) 2007-09-13
WO2003083357A1 (fr) 2003-10-09

Similar Documents

Publication Publication Date Title
DE10309263B8 (de) Geberträger für ein innerhalb von Rohren einsetzbares Inspektionsgerät (Ausführungsformen)
DE60212717D1 (de) Inspektionsapparat für deformierte rohre
DE60324650D1 (de) Positioniervorrichtung für NMR-kompatible Biopsievorrichtung
NO20031017L (no) Kvalifiseringssystem for testremser
NO20030903L (no) Kvalifiseringssystem for testremser
DE602004029432D1 (de) Einführvorrichtung für ein Endoskop
DE60143125D1 (de) Verfahren für doppelbitspeicherlöschprüfung
DE502004005579D1 (de) INSERTIONSVORRICHTUNG FüR DURCHSTECHVORRICHTUNGEN
DE60143328D1 (de) Inspektionssystem für Halbleiter
DE60221347D1 (de) In-situ adapter für ein analyten-testgerät
DE60233985D1 (de) Testverfahren für Halbleiterspeicher
DE60303066D1 (de) Prüfspitze für integrierte Schaltungen
DE60139530D1 (de) Vorrichtung für Transachstest
DE50302897D1 (de) Anschlusseinrichtung für ein elektrochirurgisches instrument
AU2003291821A8 (en) Corrosion testing apparatus
ATE335203T1 (de) Test für anti-transglutaminase-antikörper
DE60101075D1 (de) Transportkoffer/Träger für ein Augenuntersuchungsgerät
DE60330515D1 (de) Plattenklemmvorrichtung für Plattengerät
DE60220008D1 (de) Gehäuse für ein elektronisches Gerät
DE60313822D1 (de) Steckverbinder für ein elektrisches Gerät
DE60205862D1 (de) Erkennungsvorrichtung für rohrverbinder
DE602004022472D1 (de) Vorrichtung für Erkennung von Änderungsinformation
DE60305395D1 (de) Handhabungsgerät für Bauteile
DE60304429D1 (de) Puffertransportsystem für ein Kuvertiersystem
DE60300691D1 (de) Halter für magnetische Übertragungsvorrichtung

Legal Events

Date Code Title Description
8110 Request for examination paragraph 44
8327 Change in the person/name/address of the patent owner

Owner name: CALESTE HILLS TRADING LTD., NICOSIA, CY

8327 Change in the person/name/address of the patent owner

Owner name: WEATHERFORD/LAMB, INC., HOUSTON, TEX., US

8364 No opposition during term of opposition
8328 Change in the person/name/address of the agent

Representative=s name: GROSSE, SCHUMACHER, KNAUER, VON HIRSCHHAUSEN, 8033

8396 Reprint of erroneous front page
R082 Change of representative

Representative=s name: GROSSE, SCHUMACHER, KNAUER, VON HIRSCHHAUSEN, DE

R081 Change of applicant/patentee

Owner name: WEATHERFORD TECHNOLOGY HOLDINGS, LLC, HOUSTON, US

Free format text: FORMER OWNER: WEATHERFORD/LAMB, INC., HOUSTON, TEX., US

Effective date: 20150417

R082 Change of representative

Representative=s name: GROSSE, SCHUMACHER, KNAUER, VON HIRSCHHAUSEN, DE

Effective date: 20150417

R119 Application deemed withdrawn, or ip right lapsed, due to non-payment of renewal fee