US20100008733A1 - Arrangement for Stabilization of a Floating Foundation - Google Patents

Arrangement for Stabilization of a Floating Foundation Download PDF

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Publication number
US20100008733A1
US20100008733A1 US12/498,710 US49871009A US2010008733A1 US 20100008733 A1 US20100008733 A1 US 20100008733A1 US 49871009 A US49871009 A US 49871009A US 2010008733 A1 US2010008733 A1 US 2010008733A1
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US
United States
Prior art keywords
mooring
arrangement
cables
endings
foundation
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.)
Abandoned
Application number
US12/498,710
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English (en)
Inventor
Henrik Stiesdal
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.)
Siemens AG
Original Assignee
Siemens AG
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 Siemens AG filed Critical Siemens AG
Assigned to SIEMENS AKTIENGESELLSCHAFT reassignment SIEMENS AKTIENGESELLSCHAFT ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: STIESDAL, HENRIK
Publication of US20100008733A1 publication Critical patent/US20100008733A1/en
Abandoned legal-status Critical Current

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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B63SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63BSHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B21/00Tying-up; Shifting, towing, or pushing equipment; Anchoring
    • B63B21/50Anchoring arrangements or methods for special vessels, e.g. for floating drilling platforms or dredgers
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B63SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63BSHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B35/00Vessels or similar floating structures specially adapted for specific purposes and not otherwise provided for
    • B63B35/44Floating buildings, stores, drilling platforms, or workshops, e.g. carrying water-oil separating devices
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F03MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
    • F03DWIND MOTORS
    • F03D13/00Assembly, mounting or commissioning of wind motors; Arrangements specially adapted for transporting wind motor components
    • F03D13/20Arrangements for mounting or supporting wind motors; Masts or towers for wind motors
    • F03D13/25Arrangements for mounting or supporting wind motors; Masts or towers for wind motors specially adapted for offshore installation
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B63SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63BSHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B35/00Vessels or similar floating structures specially adapted for specific purposes and not otherwise provided for
    • B63B35/44Floating buildings, stores, drilling platforms, or workshops, e.g. carrying water-oil separating devices
    • B63B2035/442Spar-type semi-submersible structures, i.e. shaped as single slender, e.g. substantially cylindrical or trussed vertical bodies
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B63SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63BSHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B35/00Vessels or similar floating structures specially adapted for specific purposes and not otherwise provided for
    • B63B35/44Floating buildings, stores, drilling platforms, or workshops, e.g. carrying water-oil separating devices
    • B63B2035/4433Floating structures carrying electric power plants
    • B63B2035/446Floating structures carrying electric power plants for converting wind energy into electric energy
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05BINDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
    • F05B2240/00Components
    • F05B2240/90Mounting on supporting structures or systems
    • F05B2240/93Mounting on supporting structures or systems on a structure floating on a liquid surface
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00Energy generation through renewable energy sources
    • Y02E10/70Wind energy
    • Y02E10/72Wind turbines with rotation axis in wind direction
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00Energy generation through renewable energy sources
    • Y02E10/70Wind energy
    • Y02E10/727Offshore wind turbines

Definitions

  • the invention relates to an arrangement for the stabilization of a floating foundation, which is used offshore to carry a wind-turbine.
  • Floating foundations for wind-turbines are known from WO 2006 132 539 A1 and from WO 2006 121 337 A1 showing so called “spar-buoy”. These spar-buoy-types are fixed at a predetermined position by the use of one set of mooring cable.
  • FIG. 3 shows a typical spar-buoy foundation according to the state of the art.
  • a wind-turbine 1 is mounted on a tower 2 , which is supported by a spar-buoy foundation 3 .
  • First endings of the mooring cables 5 are attached to the spar-buoy foundation 3 at a certain position 4 , while second endings of the mooring cables are attached to anchors 6 .
  • the level of the position 4 is below the waterline WL.
  • the overturning moments are performed by waves and wind while the restoring moment is performed by the weight of the foundation, which acts on the lower end of the foundation.
  • FIG. 4 shows with reference to FIG. 3 typical operating loads of a normal spar-buoy foundation.
  • the whole structure is generally exposed to an arising overturning moment.
  • the overturning moment is defined as multiplication from a wind-load 8 , acting on the wind-turbine 1 , and a lever-arm 9 , which length is defined by the distance between a force centre and the mooring cable attachment 4 .
  • the overturning moment is additionally defined as multiplication from the wind load 10 , acting on the tower 2 , and a lever-arm 11 , which length is defined by the distance between the wind-load-force-centre and the mooring cable attachment 4 .
  • Last the overturning moment is additionally defined as multiplication from a wave and current load 12 multiplied with an arm-lever 13 , which is defined by the distance between this force centre and the mooring cable attachment 4 .
  • the restoring moment is the gravity load 14 of the balancing weight 7 multiplied with a lever-arm 15 , which is defined by the distance from the gravity force centre to the mooring cable attachment 4 .
  • An object of the present invention is to provide an improved arrangement for the stabilization of a floating foundation to be used offshore.
  • the arrangement for stabilization of a foundation is arranged to carry a wind-turbine mounted on a tower.
  • the foundation is fixed with a set of mooring cables.
  • First endings of the mooring cables are attached to the foundation at a certain position while second endings of the mooring cables are attached to the floor.
  • There is a second set of mooring-cables while first endings of the second set of mooring-cables are attached to the foundation near or at its bottom end. Second endings of the second set of mooring-cables are attached to the floor, too.
  • the inventive arrangement allows a higher stabilisation of the floating foundation, which is arranged to carry a wind-turbine.
  • the inventive arrangement is cheap and is easy to implement even at older locations, which are already at work.
  • FIG. 1 shows a spar-buoy foundation according to the invention
  • FIG. 2 shows with reference to FIG. 1 operating loads of the inventive spar-buoy foundation
  • FIG. 3 shows a typical spar-buoy foundation according to the state of the art.
  • FIG. 4 shows with reference to FIG. 3 typical operating loads of a normal spar-buoy foundation.
  • FIG. 1 shows a spar-buoy foundation according to the invention.
  • a wind-turbine 1 is mounted on a tower 2 , which is supported by a spar-buoy foundation 3 .
  • First endings of the mooring cables 5 are attached to the spar-buoy foundation 3 at a certain position 4 , while second endings of the mooring cables are attached to anchors 6 .
  • the level of the position 4 is below the waterline WL.
  • First endings of the mooring cables 17 are attached to the spar-buoy foundation 3 near or at the bottom end of the foundation 3 .
  • Second endings of the mooring cables 17 are attached to the anchors 6 , preferably. It is also possible to use another set of anchors for this mooring-cables 17 .
  • the two sets of mooring cables 5 and 17 serve to stabilise the foundation. Therefore the restoring moment will be a combination of a first moment, arising from the weight of the lower end of the foundation, and a second moment, arising from differential forces in the mooring cables 5 and 17 .
  • FIG. 2 shows with reference to FIG. 1 typical operating loads of the inventive spar-buoy foundation 3 .
  • the whole structure is generally exposed to an arising overturning moment.
  • the overturning moment is defined as multiplication from a wind-load 8 , acting on the wind-turbine 1 , and a lever-arm 9 , which length is defined by the distance between a wind-load-force-centre and the mooring cable attachment 4 .
  • the overturning moment is additionally defined as multiplication from the wind load 10 , acting on the tower 2 , and a lever-arm 11 , which length is defined by the distance between the wind-load-force-centre and the mooring cable attachment 4 .
  • Last the overturning moment is additionally defined as multiplication from a wave and current load 12 multiplied with a arm-lever 13 , which is defined by the distance between this force centre and the mooring cable attachment 4 .
  • the restoring moment is the horizontal component 18 of a second mooring cable force 19 , multiplied with an arm 20 from the attachment point AT of the second set mooring cables 17 to the attachment point 4 of the first set of mooring cable 5 .
  • the mooring arrangement of the spar-buoy foundation the same loading situation will lead to about 3 m displacement of the tower top and about 1.5 degrees maximum inclination. So the inventive arrangement leads to a higher stiffness.
  • first set of mooring-cable 5 and/or the second set of mooring cable 17 are fitted with tensioning devices, to allow an adjustment of the relative tautness of the particular set of mooring cable.
US12/498,710 2008-07-08 2009-07-07 Arrangement for Stabilization of a Floating Foundation Abandoned US20100008733A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP08012310.2 2008-07-08
EP08012310.2A EP2143629B1 (de) 2008-07-08 2008-07-08 Anordnung zur Stabilisierung für ein schwimmendes Fundament

Publications (1)

Publication Number Publication Date
US20100008733A1 true US20100008733A1 (en) 2010-01-14

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Application Number Title Priority Date Filing Date
US12/498,710 Abandoned US20100008733A1 (en) 2008-07-08 2009-07-07 Arrangement for Stabilization of a Floating Foundation

Country Status (4)

Country Link
US (1) US20100008733A1 (de)
EP (1) EP2143629B1 (de)
CN (1) CN101624964A (de)
ES (1) ES2408326T3 (de)

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20100099807A1 (en) * 2008-10-17 2010-04-22 Carlise Joseph R Method of controlling gas hydrates in fluid systems
US20100099814A1 (en) * 2008-10-17 2010-04-22 Conrad Peter G Method of controlling gas hydrates in fluid systems
US20120201608A1 (en) * 2011-02-04 2012-08-09 Sidney Irving Belinsky Foundation for offshore wind turbine and method and means for its transportation and installation in deepwaters
US20130233231A1 (en) * 2010-11-04 2013-09-12 University Of Maine System Board Of Trustees Floating Wind Turbine Platform and Method of Assembling
US9458373B2 (en) 2010-12-16 2016-10-04 Ecolab Usa Inc. Composition and method for reducing hydrate agglomeration
US9518564B2 (en) 2010-11-04 2016-12-13 University Of Maine System Board Of Trustee Floating hybrid composite wind turbine platform and tower system
US20170067449A1 (en) * 2015-04-23 2017-03-09 Continuum Dynamics, Inc. Hybrid vertical/horizontal axis wind turbine for deep-water offshore installations
US10196112B2 (en) * 2017-03-16 2019-02-05 Dalian University Of Technology Adaptive observation platform device for sea surface
US10208734B2 (en) 2015-04-23 2019-02-19 Continuum Dynamics, Inc. Lift-driven wind turbine with force canceling blade configuration
US11014637B2 (en) 2019-02-21 2021-05-25 Vl Offshore, Llc Motion-attenuated semi-submersible floating-type foundation for supporting a wind power generation system
US11486362B2 (en) * 2018-07-20 2022-11-01 Aerodyn Consulting Singapore Pte Ltd Single-point mooring wind turbine
US11939032B2 (en) 2019-02-21 2024-03-26 Vl Offshore, Llc Floating-type foundation for supporting a wind power generation system and including a stabilized power cable, system of floating-type foundations, and a method of stabilizing the power cable

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Publication number Priority date Publication date Assignee Title
EP2271547B1 (de) 2008-04-23 2014-03-19 Principle Power, Inc. Säulenstabilisierte offshore-plattform mit wassereinschlussplatten und asymmetrischem andocksystem als träger von offshore-windturbinen
CN102392796B (zh) * 2011-10-11 2013-07-03 苏州市思玛特电力科技有限公司 一种基于主动平衡控制的海上悬浮式风力发电机组
WO2013084546A1 (ja) * 2011-12-05 2013-06-13 三菱重工業株式会社 浮体式風力発電装置
JP6108445B2 (ja) * 2013-03-13 2017-04-05 戸田建設株式会社 浮体式洋上風力発電設備
JP6426718B2 (ja) 2013-05-20 2018-11-21 プリンシプル・パワー・インコーポレーテツド オフショア浮体式風力タービン・プラットフォームを制御するシステムおよび方法
DK3212496T3 (da) 2014-10-27 2019-10-28 Principle Power Inc Forbindelsessystem til kabelrækker til frakoblelige offshore-energianordninger
EP3310647B1 (de) 2015-06-19 2021-03-24 Principle Power, Inc. Schwimmende windturbinenplattformstruktur mit optimiertem transfer von wellen- und windlasten
CN107965422B (zh) * 2017-12-15 2019-05-24 上海海事大学 一种悬链线型组合式海上风力机支撑结构体系
US11225945B2 (en) 2019-05-30 2022-01-18 Principle Power, Inc. Floating wind turbine platform controlled to optimize power production and reduce loading
EP4079621B1 (de) * 2021-04-21 2024-01-31 Costantino Bandiera Schwanzspierentonnen-offshore-aufwind-hawt-fundament
CN114044090B (zh) * 2021-12-17 2023-06-20 中交第一航务工程局有限公司 漂浮式水上基础

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US3778854A (en) * 1971-03-16 1973-12-18 Santa Fe Int Corp Mooring and oil transfer apparatus
US4653960A (en) * 1986-05-20 1987-03-31 Chun Joong H Submersible offshore drilling production and storage platform with anti-catenary stationing
US6210072B1 (en) * 1996-10-03 2001-04-03 Fredrick Marelius Method and apparatus for erosion protecting a coast
US20030084961A1 (en) * 2001-11-06 2003-05-08 Fmc Technologies, Inc. Submerged flowline termination at a single point mooring buoy
US20040037651A1 (en) * 2000-06-21 2004-02-26 Khachaturian Jon E. Articulated multiple buoy marine platform apparatus and method of installation
US6856036B2 (en) * 2001-06-26 2005-02-15 Sidney Irving Belinsky Installation for harvesting ocean currents (IHOC)
US7105940B2 (en) * 2004-03-31 2006-09-12 General Electric Company Mobile renewable energy generator
US20070001464A1 (en) * 2005-06-30 2007-01-04 Kothnur Vasanth S System and method for installing a wind turbine at an offshore location
US20080089746A1 (en) * 2004-10-06 2008-04-17 Enertec Ag (Method of) Construction of a Submerged Floating Foundation With a Blocked Vertical Thrust As a Support Base for the Installation of a Wind Turbine, of an Electrolyser for the Electrolysis of Water and of Other Equipment, Combined With Fish Farming
US7819073B2 (en) * 2005-06-06 2010-10-26 Norsk Hydro Asa Floating wind turbine installation

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EP0945337A1 (de) 1998-03-27 1999-09-29 Single Buoy Moorings Inc. Einrichtung zm Vertauen
AU4373099A (en) * 1998-05-29 1999-12-20 Single Buoy Moorings Inc. Transfer pipe system
WO1999062761A1 (en) 1998-05-29 1999-12-09 Supramar Ag Streamlined body for a liquid to flow around at high speed
WO2003062043A1 (en) 2002-01-24 2003-07-31 Single Buoy Moorings Inc. Wave motion absorbing offloading system comprising a slender mooring buoy

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Publication number Priority date Publication date Assignee Title
US3778854A (en) * 1971-03-16 1973-12-18 Santa Fe Int Corp Mooring and oil transfer apparatus
US4653960A (en) * 1986-05-20 1987-03-31 Chun Joong H Submersible offshore drilling production and storage platform with anti-catenary stationing
US6210072B1 (en) * 1996-10-03 2001-04-03 Fredrick Marelius Method and apparatus for erosion protecting a coast
US20040037651A1 (en) * 2000-06-21 2004-02-26 Khachaturian Jon E. Articulated multiple buoy marine platform apparatus and method of installation
US6856036B2 (en) * 2001-06-26 2005-02-15 Sidney Irving Belinsky Installation for harvesting ocean currents (IHOC)
US20030084961A1 (en) * 2001-11-06 2003-05-08 Fmc Technologies, Inc. Submerged flowline termination at a single point mooring buoy
US7105940B2 (en) * 2004-03-31 2006-09-12 General Electric Company Mobile renewable energy generator
US20080089746A1 (en) * 2004-10-06 2008-04-17 Enertec Ag (Method of) Construction of a Submerged Floating Foundation With a Blocked Vertical Thrust As a Support Base for the Installation of a Wind Turbine, of an Electrolyser for the Electrolysis of Water and of Other Equipment, Combined With Fish Farming
US7819073B2 (en) * 2005-06-06 2010-10-26 Norsk Hydro Asa Floating wind turbine installation
US20070001464A1 (en) * 2005-06-30 2007-01-04 Kothnur Vasanth S System and method for installing a wind turbine at an offshore location

Cited By (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10392573B2 (en) 2008-10-17 2019-08-27 Ecolab Usa Inc. Method of controlling gas hydrates in fluid systems
US20100099814A1 (en) * 2008-10-17 2010-04-22 Conrad Peter G Method of controlling gas hydrates in fluid systems
US8921478B2 (en) 2008-10-17 2014-12-30 Nalco Company Method of controlling gas hydrates in fluid systems
US9550935B2 (en) 2008-10-17 2017-01-24 Nalco Company Method of controlling gas hydrates in fluid systems
US20100099807A1 (en) * 2008-10-17 2010-04-22 Carlise Joseph R Method of controlling gas hydrates in fluid systems
US20130233231A1 (en) * 2010-11-04 2013-09-12 University Of Maine System Board Of Trustees Floating Wind Turbine Platform and Method of Assembling
US9394035B2 (en) * 2010-11-04 2016-07-19 University Of Maine System Board Of Trustees Floating wind turbine platform and method of assembling
US9518564B2 (en) 2010-11-04 2016-12-13 University Of Maine System Board Of Trustee Floating hybrid composite wind turbine platform and tower system
US9458373B2 (en) 2010-12-16 2016-10-04 Ecolab Usa Inc. Composition and method for reducing hydrate agglomeration
US20120201608A1 (en) * 2011-02-04 2012-08-09 Sidney Irving Belinsky Foundation for offshore wind turbine and method and means for its transportation and installation in deepwaters
US10626848B2 (en) 2015-04-23 2020-04-21 Continuum Dynamics, Inc. Lift-driven wind turbine with force canceling blade configuration
US10208734B2 (en) 2015-04-23 2019-02-19 Continuum Dynamics, Inc. Lift-driven wind turbine with force canceling blade configuration
US10344742B2 (en) * 2015-04-23 2019-07-09 Continuum Dynamics, Inc. Hybrid vertical/horizontal axis wind turbine for deep-water offshore installations
US10598156B2 (en) 2015-04-23 2020-03-24 Continuum Dynamics, Inc. Hybrid vertical/horizontal axis wind turbine for deep-water offshore installations
US20170067449A1 (en) * 2015-04-23 2017-03-09 Continuum Dynamics, Inc. Hybrid vertical/horizontal axis wind turbine for deep-water offshore installations
US10837426B2 (en) 2015-04-23 2020-11-17 Continuum Dynamics, Inc. Hybrid vertical/horizontal axis wind turbine for deep-water offshore installations
US10927817B1 (en) 2015-04-23 2021-02-23 Continuum Dynamics, Inc. Hybrid vertical/horizontal axis wind turbine for deep-water offshore installations
US10196112B2 (en) * 2017-03-16 2019-02-05 Dalian University Of Technology Adaptive observation platform device for sea surface
US11486362B2 (en) * 2018-07-20 2022-11-01 Aerodyn Consulting Singapore Pte Ltd Single-point mooring wind turbine
US11014637B2 (en) 2019-02-21 2021-05-25 Vl Offshore, Llc Motion-attenuated semi-submersible floating-type foundation for supporting a wind power generation system
US11939032B2 (en) 2019-02-21 2024-03-26 Vl Offshore, Llc Floating-type foundation for supporting a wind power generation system and including a stabilized power cable, system of floating-type foundations, and a method of stabilizing the power cable

Also Published As

Publication number Publication date
ES2408326T3 (es) 2013-06-20
EP2143629A1 (de) 2010-01-13
CN101624964A (zh) 2010-01-13
EP2143629B1 (de) 2013-04-24

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Owner name: SIEMENS AKTIENGESELLSCHAFT, GERMANY

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:STIESDAL, HENRIK;REEL/FRAME:022922/0031

Effective date: 20090514

STCB Information on status: application discontinuation

Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION