CA2536668A1 - Braided spar for a rotor blade and method of manufacture thereof - Google Patents
Braided spar for a rotor blade and method of manufacture thereof Download PDFInfo
- Publication number
- CA2536668A1 CA2536668A1 CA002536668A CA2536668A CA2536668A1 CA 2536668 A1 CA2536668 A1 CA 2536668A1 CA 002536668 A CA002536668 A CA 002536668A CA 2536668 A CA2536668 A CA 2536668A CA 2536668 A1 CA2536668 A1 CA 2536668A1
- Authority
- CA
- Canada
- Prior art keywords
- fibers
- braided
- recited
- spar
- mandrel
- 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
Links
- 238000000034 method Methods 0.000 title claims abstract description 22
- 238000004519 manufacturing process Methods 0.000 title abstract description 15
- 239000000835 fiber Substances 0.000 claims abstract description 79
- 238000009954 braiding Methods 0.000 claims abstract description 23
- 229920005989 resin Polymers 0.000 claims abstract description 19
- 239000011347 resin Substances 0.000 claims abstract description 19
- 239000002131 composite material Substances 0.000 claims description 40
- 239000002184 metal Substances 0.000 abstract description 13
- 230000008901 benefit Effects 0.000 description 10
- 239000000463 material Substances 0.000 description 7
- 238000009730 filament winding Methods 0.000 description 6
- 230000008569 process Effects 0.000 description 6
- 239000003795 chemical substances by application Substances 0.000 description 3
- 238000003860 storage Methods 0.000 description 3
- 238000004804 winding Methods 0.000 description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- 239000004593 Epoxy Substances 0.000 description 2
- 238000005452 bending Methods 0.000 description 2
- 238000005056 compaction Methods 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 230000032798 delamination Effects 0.000 description 2
- 239000011152 fibreglass Substances 0.000 description 2
- 230000003993 interaction Effects 0.000 description 2
- 239000011159 matrix material Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 239000004753 textile Substances 0.000 description 2
- BCCGKQFZUUQSEX-WBPXWQEISA-N (2r,3r)-2,3-dihydroxybutanedioic acid;3,4-dimethyl-2-phenylmorpholine Chemical compound OC(=O)[C@H](O)[C@@H](O)C(O)=O.OC(=O)[C@H](O)[C@@H](O)C(O)=O.O1CCN(C)C(C)C1C1=CC=CC=C1 BCCGKQFZUUQSEX-WBPXWQEISA-N 0.000 description 1
- -1 AS4 Substances 0.000 description 1
- 229920000271 Kevlar® Polymers 0.000 description 1
- 239000004952 Polyamide Substances 0.000 description 1
- 239000004760 aramid Substances 0.000 description 1
- 229920003235 aromatic polyamide Polymers 0.000 description 1
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 239000002657 fibrous material Substances 0.000 description 1
- 229910002804 graphite Inorganic materials 0.000 description 1
- 239000010439 graphite Substances 0.000 description 1
- 238000001802 infusion Methods 0.000 description 1
- 239000004761 kevlar Substances 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 229920003986 novolac Polymers 0.000 description 1
- 229920001568 phenolic resin Polymers 0.000 description 1
- 239000005011 phenolic resin Substances 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 229920003192 poly(bis maleimide) Polymers 0.000 description 1
- 229920002647 polyamide Polymers 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 229920001169 thermoplastic Polymers 0.000 description 1
- 229920001187 thermosetting polymer Polymers 0.000 description 1
- 239000004416 thermosoftening plastic Substances 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 238000012795 verification Methods 0.000 description 1
Classifications
-
- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
- D04H3/00—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length
- D04H3/02—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the method of forming fleeces or layers, e.g. reorientation of yarns or filaments
- D04H3/07—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the method of forming fleeces or layers, e.g. reorientation of yarns or filaments otherwise than in a plane, e.g. in a tubular way
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
- B29C70/04—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising reinforcements only, e.g. self-reinforcing plastics
- B29C70/06—Fibrous reinforcements only
- B29C70/10—Fibrous reinforcements only characterised by the structure of fibrous reinforcements, e.g. hollow fibres
- B29C70/16—Fibrous reinforcements only characterised by the structure of fibrous reinforcements, e.g. hollow fibres using fibres of substantial or continuous length
- B29C70/22—Fibrous reinforcements only characterised by the structure of fibrous reinforcements, e.g. hollow fibres using fibres of substantial or continuous length oriented in at least two directions forming a two dimensional structure
- B29C70/222—Fibrous reinforcements only characterised by the structure of fibrous reinforcements, e.g. hollow fibres using fibres of substantial or continuous length oriented in at least two directions forming a two dimensional structure the structure being shaped to form a three dimensional configuration
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
- B29C70/04—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising reinforcements only, e.g. self-reinforcing plastics
- B29C70/28—Shaping operations therefor
- B29C70/40—Shaping or impregnating by compression not applied
- B29C70/42—Shaping or impregnating by compression not applied for producing articles of definite length, i.e. discrete articles
- B29C70/46—Shaping or impregnating by compression not applied for producing articles of definite length, i.e. discrete articles using matched moulds, e.g. for deforming sheet moulding compounds [SMC] or prepregs
- B29C70/48—Shaping or impregnating by compression not applied for producing articles of definite length, i.e. discrete articles using matched moulds, e.g. for deforming sheet moulding compounds [SMC] or prepregs and impregnating the reinforcements in the closed mould, e.g. resin transfer moulding [RTM], e.g. by vacuum
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64C—AEROPLANES; HELICOPTERS
- B64C27/00—Rotorcraft; Rotors peculiar thereto
- B64C27/008—Rotors tracking or balancing devices
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64C—AEROPLANES; HELICOPTERS
- B64C27/00—Rotorcraft; Rotors peculiar thereto
- B64C27/32—Rotors
- B64C27/46—Blades
- B64C27/463—Blade tips
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64C—AEROPLANES; HELICOPTERS
- B64C27/00—Rotorcraft; Rotors peculiar thereto
- B64C27/32—Rotors
- B64C27/46—Blades
- B64C27/473—Constructional features
-
- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04C—BRAIDING OR MANUFACTURE OF LACE, INCLUDING BOBBIN-NET OR CARBONISED LACE; BRAIDING MACHINES; BRAID; LACE
- D04C1/00—Braid or lace, e.g. pillow-lace; Processes for the manufacture thereof
- D04C1/02—Braid or lace, e.g. pillow-lace; Processes for the manufacture thereof made from particular materials
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2031/00—Other particular articles
- B29L2031/08—Blades for rotors, stators, fans, turbines or the like, e.g. screw propellers
- B29L2031/082—Blades, e.g. for helicopters
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64C—AEROPLANES; HELICOPTERS
- B64C27/00—Rotorcraft; Rotors peculiar thereto
- B64C27/32—Rotors
- B64C27/46—Blades
- B64C27/473—Constructional features
- B64C2027/4733—Rotor blades substantially made from particular materials
- B64C2027/4736—Rotor blades substantially made from particular materials from composite materials
-
- D—TEXTILES; PAPER
- D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B2403/00—Details of fabric structure established in the fabric forming process
- D10B2403/02—Cross-sectional features
- D10B2403/024—Fabric incorporating additional compounds
- D10B2403/0241—Fabric incorporating additional compounds enhancing mechanical properties
- D10B2403/02411—Fabric incorporating additional compounds enhancing mechanical properties with a single array of unbent yarn, e.g. unidirectional reinforcement fabrics
-
- D—TEXTILES; PAPER
- D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B2505/00—Industrial
- D10B2505/02—Reinforcing materials; Prepregs
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Textile Engineering (AREA)
- Aviation & Aerospace Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Composite Materials (AREA)
- Manufacturing & Machinery (AREA)
- Moulding By Coating Moulds (AREA)
- Casting Or Compression Moulding Of Plastics Or The Like (AREA)
- Braiding, Manufacturing Of Bobbin-Net Or Lace, And Manufacturing Of Nets By Knotting (AREA)
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US10/646,310 | 2003-08-22 | ||
| US10/646,310 US7165945B2 (en) | 2003-08-22 | 2003-08-22 | Braided spar for a rotor blade and method of manufacture thereof |
| PCT/US2004/027151 WO2005079184A2 (en) | 2003-08-22 | 2004-08-20 | Braided spar for a rotor blade and method of manufacture thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA2536668A1 true CA2536668A1 (en) | 2005-09-01 |
Family
ID=34194501
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA002536668A Abandoned CA2536668A1 (en) | 2003-08-22 | 2004-08-20 | Braided spar for a rotor blade and method of manufacture thereof |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US7165945B2 (enExample) |
| EP (1) | EP1663779B1 (enExample) |
| JP (1) | JP4504374B2 (enExample) |
| CA (1) | CA2536668A1 (enExample) |
| WO (1) | WO2005079184A2 (enExample) |
Families Citing this family (53)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7083383B2 (en) * | 2004-04-26 | 2006-08-01 | The Boeing Company | Segmented rotor blade trim tab |
| BRPI0607568A2 (pt) * | 2005-05-03 | 2010-04-06 | Stork Sp Aerospace B V | método para fabricar um membro estrutural oco reforçado com fibra, e, membro estrutural oco reforçado com fibra |
| BRPI0610476A2 (pt) * | 2005-05-03 | 2012-10-30 | Stork Sp Aerospace B V | dispositivo para injetar uma resina em pelo menos uma camada de fibra de um produto reforçado com fibra, método para fabricar um produto oco reforçado com fibras, e, uso de um dispositivo |
| GB2449058B (en) * | 2007-01-20 | 2011-08-10 | Smiths Aerospace Group Ltd | Blades |
| FR2926785B1 (fr) | 2008-01-25 | 2010-02-19 | Eurocopter France | Pale de giravion munie d'un longeron integrant une attache de fixation,et procede de fabrication d'un tel longeron. |
| US8221084B2 (en) * | 2008-02-28 | 2012-07-17 | Textron Innovations Inc. | Single-piece propeller and method of making |
| WO2009111568A1 (en) * | 2008-03-04 | 2009-09-11 | Karem Aircraft, Inc. | Composite blade root stucture |
| DE102009010429A1 (de) * | 2008-03-14 | 2009-09-17 | Thoenes Dichtungstechnik Gmbh | Verfahren zur Herstellung einer Walze für die Bearbeitung bandförmigen Materials und nach diesem Verfahren hergestellte Walze |
| DE112009001181A5 (de) * | 2008-03-14 | 2011-02-17 | Thoenes Dichtungstechnik Gmbh | Verfahren zur Herstellung eines Rotorblattes für eine Windkraftanlage sowie ein nach diesem Verfahren hergestelltes Rotorblatt |
| US8353673B2 (en) * | 2008-04-26 | 2013-01-15 | Sikorsky Aircraft Corporation | Main rotor blade with integral cuff |
| US8800145B2 (en) * | 2008-12-30 | 2014-08-12 | Sikorsky Aircraft Corporation | Refurbishing method and system for a main rotor blade spar |
| GB2466793B (en) * | 2009-01-07 | 2011-11-09 | Ge Aviat Systems Ltd | Composite spars |
| US20110290405A1 (en) * | 2009-02-13 | 2011-12-01 | Martin Kaenzig | Method for the production of composite hollow articles |
| US8753091B1 (en) * | 2009-05-20 | 2014-06-17 | A&P Technology, Inc. | Composite wind turbine blade and method for manufacturing same |
| EP2263862B1 (fr) * | 2009-06-17 | 2012-11-07 | Techspace Aero S.A. | Procédé de fabrication de préformes tressées |
| DK2357357T3 (en) * | 2009-10-01 | 2017-01-09 | Vestas Wind Sys As | The wind turbine blade |
| PT2524134E (pt) | 2010-01-14 | 2014-08-01 | Neptco Inc | Componentes de pá de rotor de turbina eólica e seus processos de fabrico |
| US10137542B2 (en) | 2010-01-14 | 2018-11-27 | Senvion Gmbh | Wind turbine rotor blade components and machine for making same |
| DE102010010512B4 (de) * | 2010-03-05 | 2022-03-17 | Action Composites Hightech GmbH | Verfahren zur Herstellung einer Radfelge und Verfahren zur Vorfertigung eines Felgenbetts einer Radfelge |
| DE102010010513B4 (de) * | 2010-03-05 | 2014-07-03 | ThyssenKrupp Carbon Components GmbH | Verfahren zur Herstellung von hohlprofilartigen Bauteilen aus Faserverbundwerkstoffen |
| FR2957893B1 (fr) * | 2010-03-23 | 2013-04-05 | Eurocopter France | Pale de voilure tournante, aeronef a voilure tournante muni d'une telle pale |
| US8500407B1 (en) | 2010-03-28 | 2013-08-06 | The Boeing Company | Composite blade root-end drill-through lug and attachment method |
| FR2962175B1 (fr) | 2010-07-02 | 2012-08-10 | Snecma | Aube a longeron composite integre |
| JP5503481B2 (ja) * | 2010-09-30 | 2014-05-28 | 一般社団法人日本航空宇宙工業会 | 繊維強化複合材料を用いた翼状構造体およびその製造方法 |
| DE102011012675B4 (de) * | 2011-02-28 | 2014-10-23 | Munich Composites Gmbh | Verfahren zum Herstellen einer Felge mit einer teilbaren Flechtvorrichtung |
| JP5738033B2 (ja) | 2011-03-28 | 2015-06-17 | 三菱重工業株式会社 | 複合材構造体の成形方法 |
| EP2755862B1 (de) | 2011-09-14 | 2016-04-13 | Bayerische Motoren Werke Aktiengesellschaft | Fahrzeug-rad mit einer felge aus faserverstärktem kunststoffmaterial |
| US8261648B1 (en) | 2011-10-17 | 2012-09-11 | Sequent Medical Inc. | Braiding mechanism and methods of use |
| CN106192198B (zh) | 2011-10-17 | 2020-06-05 | 后续医疗股份有限公司 | 编织机构 |
| US9416668B2 (en) | 2012-04-30 | 2016-08-16 | United Technologies Corporation | Hollow fan bladed with braided fabric tubes |
| EP2781734B1 (en) * | 2013-03-20 | 2019-02-20 | Siemens Aktiengesellschaft | Rotor blade with a segmented supporting structure and method for manufacturing the rotor blade |
| GB201307066D0 (en) | 2013-04-18 | 2013-05-29 | Airbus Operations Ltd | Winglet and braided composite spar |
| US9745056B2 (en) * | 2013-05-14 | 2017-08-29 | Sikorsky Aircraft Corporation | Main rotor blade with composite integral skin and cuff |
| KR102071763B1 (ko) * | 2014-02-21 | 2020-01-30 | 미쓰이금속광업주식회사 | 내장 캐패시터층 형성용 동장 적층판, 다층 프린트 배선판 및 다층 프린트 배선판의 제조 방법 |
| US9890764B2 (en) * | 2014-03-26 | 2018-02-13 | General Electric Company | Trailing edge cap for a rotor blade and method of manufacturing same |
| US10406763B2 (en) | 2014-08-15 | 2019-09-10 | Sikorsky Aircraft Corporation | Rotor blade spar formation with automated fiber placement |
| US10589475B2 (en) | 2014-09-23 | 2020-03-17 | General Electric Company | Braided blades and vanes having dovetail roots |
| GB201417769D0 (en) * | 2014-10-08 | 2014-11-19 | Rolls Royce Plc | Composite article |
| WO2016100081A1 (en) | 2014-12-17 | 2016-06-23 | Sikorsky Aircraft Corporation | Composite laminate tooling and method of forming a composite part using the tooling |
| JP6937327B2 (ja) | 2016-03-17 | 2021-09-22 | スワミナサン ジャヤラマン | 解剖学的構造の閉塞 |
| US12232737B2 (en) | 2016-03-17 | 2025-02-25 | Eclipse Medical Limited | Occluding anatomical structures |
| CN106005397A (zh) * | 2016-07-14 | 2016-10-12 | 上海未来伙伴机器人有限公司 | 多旋翼机桨、多旋翼机以及改善桨叶静不平衡的方法 |
| KR20180031392A (ko) * | 2016-09-20 | 2018-03-28 | 다이텍연구원 | 탄소섬유토우 프리프레그 브레이딩 튜브 프레임의 제조방법 |
| FR3069185B1 (fr) * | 2017-07-18 | 2020-07-24 | Airbus Operations Sas | Profil aerodynamique a noyau creux oblong arrondi en materiau composite renforce par un textile a fibres unidirectionnelles |
| EP3556544B1 (en) * | 2018-04-17 | 2021-07-28 | Ratier-Figeac SAS | Propeller blade spar |
| GB2573285A (en) * | 2018-04-27 | 2019-11-06 | Airbus Operations Ltd | Composite spar for a wing structure |
| CN112368134B (zh) * | 2018-05-01 | 2023-05-02 | 通用电气公司 | 用于制造用于风力涡轮转子叶片的翼梁帽的方法 |
| CN114206722A (zh) * | 2019-06-20 | 2022-03-18 | 银河有限责任公司 | 集成拉挤成型复合型材及用于制造其的方法 |
| EP3848488B1 (en) * | 2020-01-08 | 2025-10-08 | Ratier-Figeac SAS | Propeller blade comprising a core and a braided cover of said core, bobbin and method for for braiding said braided cover |
| FR3111658B1 (fr) * | 2020-06-18 | 2022-07-15 | Safran Aircraft Engines | Aube en matériau composite à renfort fibreux tissé tridimensionnel et peau tissée bidimensionnel et son procédé de fabrication |
| CN113459526B (zh) * | 2021-06-30 | 2022-06-10 | 中国航空制造技术研究院 | 一种复合材料风扇叶片与金属包边的胶接成型方法 |
| FR3138668B1 (fr) * | 2022-08-02 | 2024-07-05 | Safran Aircraft Engines | Aube comprenant un renfort métallique provisoire |
| WO2024243320A2 (en) * | 2023-05-22 | 2024-11-28 | Supernal, Llc | Systems and methods for manufacturing composite laminate structures |
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| JPS5614518B2 (enExample) * | 1973-10-12 | 1981-04-04 | ||
| US4567917A (en) * | 1981-07-13 | 1986-02-04 | Stratoflex, Inc. | Hose with wire braid reinforcement |
| GB2141722A (en) * | 1983-06-20 | 1985-01-03 | Secretary Industry Brit | Urethane composites |
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| FR2706354B1 (fr) * | 1993-06-14 | 1995-09-01 | Aerospatiale | Procédé de réalisation d'objets creux en matériau composite par bobinage-dépose au contact sur un mandrin expansible et objets ainsi obtenus. |
| GB9315910D0 (en) * | 1993-07-31 | 1993-09-15 | Phillips Cables Ltd | Textile braids for cables,flexible tubes & the like |
| US5430937A (en) * | 1994-07-15 | 1995-07-11 | United Technologies Corporation | Apparatus and methods for fabricating a helicopter main rotor blade |
| KR100311562B1 (ko) * | 1994-08-31 | 2002-01-17 | 슈니버거 스티븐 에이 | 헬리콥터로터블레이드용섬유보강복합익형및그의제조방법 |
| US5939007A (en) * | 1994-08-31 | 1999-08-17 | Sikorsky Aircraft Corporation | Method for manufacture of a fiber reinforced composite spar for rotary wing aircraft |
| US5619903A (en) * | 1994-11-30 | 1997-04-15 | Bell Helicopter Textron Inc. | Braided preform for composite bodies |
| US5700533A (en) * | 1995-10-05 | 1997-12-23 | You; Chin-San | Fiber Braid Material |
| FR2746353B1 (fr) * | 1996-03-21 | 2000-07-21 | Luk Getriebe Systeme Gmbh | Dispositif pour commander un systeme de transmission de couple |
| US5836062A (en) * | 1997-04-16 | 1998-11-17 | Sikorsky Aircraft Corporation | Apparatus for assembling a helicopter main rotor blade subassembly |
| US6263936B1 (en) * | 1999-08-06 | 2001-07-24 | Bell Helicopter Textron Inc. | Technique for making fiber composite object |
| US6676080B2 (en) * | 2000-07-19 | 2004-01-13 | Aero Composites, Inc. | Composite airfoil assembly |
| US6447254B1 (en) * | 2001-05-18 | 2002-09-10 | Sikorsky Aircraft Corporation | Low dieletric constant erosion resistant material |
-
2003
- 2003-08-22 US US10/646,310 patent/US7165945B2/en not_active Expired - Lifetime
-
2004
- 2004-08-20 EP EP04821530.5A patent/EP1663779B1/en not_active Expired - Lifetime
- 2004-08-20 JP JP2006524756A patent/JP4504374B2/ja not_active Expired - Fee Related
- 2004-08-20 WO PCT/US2004/027151 patent/WO2005079184A2/en not_active Ceased
- 2004-08-20 CA CA002536668A patent/CA2536668A1/en not_active Abandoned
Also Published As
| Publication number | Publication date |
|---|---|
| EP1663779A2 (en) | 2006-06-07 |
| US7165945B2 (en) | 2007-01-23 |
| EP1663779A4 (en) | 2011-10-05 |
| WO2005079184A3 (en) | 2006-02-16 |
| WO2005079184A2 (en) | 2005-09-01 |
| JP2007503533A (ja) | 2007-02-22 |
| JP4504374B2 (ja) | 2010-07-14 |
| EP1663779B1 (en) | 2013-10-02 |
| US20050042109A1 (en) | 2005-02-24 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| FZDE | Discontinued |