US20070056246A1 - Composite beam with corrugated web - Google Patents

Composite beam with corrugated web Download PDF

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Publication number
US20070056246A1
US20070056246A1 US11/270,803 US27080305A US2007056246A1 US 20070056246 A1 US20070056246 A1 US 20070056246A1 US 27080305 A US27080305 A US 27080305A US 2007056246 A1 US2007056246 A1 US 2007056246A1
Authority
US
United States
Prior art keywords
web
flanges
parts
composite beam
bonded
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
US11/270,803
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English (en)
Inventor
Francisco Escobar Benavides
Daniel Claret Viros
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.)
Airbus Operations SL
Original Assignee
Airbus Espana SL
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 Airbus Espana SL filed Critical Airbus Espana SL
Assigned to AIRBUS ESPANA, S.L. reassignment AIRBUS ESPANA, S.L. ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: CLARET VIROS, DANIEL, ESCOBAR BENAVIDES, FRANCISCO DE PAULA
Publication of US20070056246A1 publication Critical patent/US20070056246A1/en
Assigned to AIRBUS OPERATIONS S.L. reassignment AIRBUS OPERATIONS S.L. CHANGE OF NAME (SEE DOCUMENT FOR DETAILS). Assignors: AIRBUS ESPANA, S.L.
Abandoned legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
    • B29D99/00—Subject matter not provided for in other groups of this subclass
    • B29D99/0003—Producing profiled members, e.g. beams
    • B29D99/0007—Producing profiled members, e.g. beams having a variable cross-section
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B64—AIRCRAFT; AVIATION; COSMONAUTICS
    • B64C—AEROPLANES; HELICOPTERS
    • B64C1/00—Fuselages; Constructional features common to fuselages, wings, stabilising surfaces or the like
    • B64C1/06—Frames; Stringers; Longerons ; Fuselage sections
    • B64C1/065—Spars
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C3/00—Structural elongated elements designed for load-supporting
    • E04C3/02—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces
    • E04C3/28—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of materials not covered by groups E04C3/04 - E04C3/20
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C3/00—Structural elongated elements designed for load-supporting
    • E04C3/02—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces
    • E04C3/29—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces built-up from parts of different material, i.e. composite structures
    • 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
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
    • B29C66/72—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the structure of the material of the parts to be joined
    • B29C66/721—Fibre-reinforced 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
    • B29L2031/001—Profiled members, e.g. beams, sections
    • B29L2031/003—Profiled members, e.g. beams, sections having a profiled transverse cross-section
    • 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
    • B29L2031/772—Articles characterised by their shape and not otherwise provided for
    • B29L2031/7736—Sinusoidal
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B64—AIRCRAFT; AVIATION; COSMONAUTICS
    • B64C—AEROPLANES; HELICOPTERS
    • B64C1/00—Fuselages; Constructional features common to fuselages, wings, stabilising surfaces or the like
    • B64C2001/0054—Fuselage structures substantially made from particular materials
    • B64C2001/0072—Fuselage structures substantially made from particular materials from composite materials
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C3/00—Structural elongated elements designed for load-supporting
    • E04C3/02—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces
    • E04C3/04—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal
    • E04C2003/0404—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal beams, girders, or joists characterised by cross-sectional aspects
    • E04C2003/0408—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal beams, girders, or joists characterised by cross-sectional aspects characterised by assembly or the cross-section
    • E04C2003/0413—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal beams, girders, or joists characterised by cross-sectional aspects characterised by assembly or the cross-section being built up from several parts
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C3/00—Structural elongated elements designed for load-supporting
    • E04C3/02—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces
    • E04C3/04—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal
    • E04C2003/0404—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal beams, girders, or joists characterised by cross-sectional aspects
    • E04C2003/0426—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal beams, girders, or joists characterised by cross-sectional aspects characterised by material distribution in cross section
    • E04C2003/0439—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal beams, girders, or joists characterised by cross-sectional aspects characterised by material distribution in cross section the cross-section comprising open parts and hollow parts
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C3/00—Structural elongated elements designed for load-supporting
    • E04C3/02—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces
    • E04C3/04—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal
    • E04C2003/0404—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal beams, girders, or joists characterised by cross-sectional aspects
    • E04C2003/0443—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal beams, girders, or joists characterised by cross-sectional aspects characterised by substantial shape of the cross-section
    • E04C2003/0452—H- or I-shaped
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C3/00—Structural elongated elements designed for load-supporting
    • E04C3/02—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces
    • E04C3/04—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal
    • E04C2003/0404—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal beams, girders, or joists characterised by cross-sectional aspects
    • E04C2003/0443—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal beams, girders, or joists characterised by cross-sectional aspects characterised by substantial shape of the cross-section
    • E04C2003/0465—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal beams, girders, or joists characterised by cross-sectional aspects characterised by substantial shape of the cross-section square- or rectangular-shaped
    • 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
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T50/00—Aeronautics or air transport
    • Y02T50/40—Weight reduction

Definitions

  • the present invention refers to a composite beam with a corrugated-shaped web.
  • a preferred application of the composite beam according to the invention is an aircraft fuselage.
  • corrugations are largely known in the structures community, mainly on civil applications. For many years, metallic corrugated beams have been used to improve efficiency and to save weight. Trapezoidal corrugation in the webs enables thinner webs and/or avoids the need of stringers. Different studies (Masami Hamada—1994—, C. L. Chan & Y. A. Khalid —2002—) concluded that there is a web weight reduction around 10% by the use of a corrugation.
  • Patent application US 2004/0040252 and Patent U.S. Pat. No. 6,520,706 disclose composite beams having sinusoidal-shaped webs in which additional parts are used to join the web to the flanges. This might increase by a fair amount the total cost of the beam as such additional parts' manufacturing and installation costs are not negligible.
  • the composite beam according to the invention comprises:
  • a web having a corrugated-shaped profile, with aligned parts in two parallel planes in the longitudinal direction and tilted parts between them;
  • first element of C-shape and a second element of beam-shape each of them having webs bonded to the parallel parts of the corrugated web in one plane enclosing the beam web between them, and having the caps of said first and second elements bonded to one or two additional single flanges or bonded between them to form the beam flanges.
  • This design solves the problem of joining a corrugated-shaped web to the flanges, avoiding manufacturing restrictions while folding the composite plies of the web towards the flanges.
  • One advantage of this invention is that the beam is cost-effective and able to save weight compared to straight-web beams.
  • FIG. 1 shows a perspective view of a composite beam of I-shape according to a first embodiment of the invention.
  • FIG. 2 shows a cross-section of a composite beam according to a first embodiment of the invention.
  • FIG. 3 shows a cross-section of a composite beam of C-shape according to a second embodiment of the invention.
  • FIG. 4 shows a cross-section of a composite beam of J-shape according to a third embodiment of the invention.
  • FIGS. 5 a and 5 b shows a schematic plan view of two different corrugated-shaped webs.
  • FIG. 6 shows the web of the composite beam of FIG. 1 including horizontal extensions.
  • the beam 41 has an I-shaped profile and comprises the following elements: a corrugated web 21 , two flanges 7 , 9 and two C-shaped elements 33 , 43 .
  • other elements such as adhesive 26 qualified at temperature for the interface between the web 21 and the flanges 7 , 9 (in a similar way to sandwich constructions) and filler could be required.
  • the web 21 has a corrugated-shaped profile having aligned parts 22 , 23 in two parallel planes 25 , 27 in the longitudinal direction and tilted parts 29 between them.
  • the C-shaped element 33 comprises web 35 and caps 37 , 39 .
  • the C-shaped element 43 comprises web 45 and caps 47 , 49 . Both elements 33 , 43 point outwards and are placed one at each side of the corrugated web 13
  • the web 35 of the C-shaped element 33 is bonded (co-cured, co-bonded or secondary bonded depending on the manufacturing process) to the aligned parts 23 of the web 21 in plane 27 and its caps 37 , 39 are bonded (co-cured, co-bonded or secondary bonded depending on the manufacturing process) to the flanges 7 , 9 to form the beam flanges 17 , 19 .
  • the web 45 of the C-shaped element 43 is bonded to the aligned parts 22 of the web 21 in plane 25 and its caps 47 , 49 bonded to the flanges 7 , 9 to form the beam flanges 17 , 19 .
  • This design solves the problem of joining the corrugated web 13 to the flanges 7 , 9 in a composite beam in a cost-effective way.
  • the corrugated web 21 aims to stabilize the whole web.
  • a trapezoidal-shaped corrugation gives support to the webs 35 , 45 of the C-shaped elements 33 , 43 , avoiding, thus, buckling issues and the need for additional stringers or a thicker web.
  • angles of trapezoidal web 21 are understood as any angle that makes possible the design of a corrugated web having aligned parts as described. A proper design will have this angle into consideration to obtain the preferred combination of stiffness, strength, weight and manufacturing feasibility.
  • the C-shaped elements function is twofold: to transfer the load from one flange to the other and to joint the web 21 with the flanges 7 , 9 .
  • the corrugated-shaped web 21 includes horizontal extensions 28 in said aligned parts 22 , 23 in order to reinforce the joint of the web 21 to the flanges 7 , 9 in addition to that of the web 21 with the C-shaped elements 33 , 43 .
  • the beam 51 has a C-shaped profile and comprises the following elements: a corrugated web 21 and two C-shaped elements 33 , 53 .
  • the C-shaped element 33 comprises web 35 and caps 37 , 39 .
  • the C-shaped element 53 comprises web 55 and caps 57 , 59 . Both elements 33 , 53 are placed parallel one at each side of the corrugated web 21 .
  • the webs 35 , 55 of the two C-shaped element 33 , 53 are bonded (co-cured, co-bonded or secondary bonded depending on the manufacturing process) to the aligned parts 23 , 22 of the web 21 in planes 27 , 25 and its caps 37 , 57 ; 39 , 59 are bonded (co-cured, co-bonded or secondary bonded depending on the manufacturing process) to form the beam flanges 17 , 19 .
  • the beam 61 has a J-shaped profile and comprises the following elements: a corrugated web 21 , one flange 9 , one C-shaped element 33 and one Z-shaped element 63 .
  • the C-shaped element 33 comprises web 35 and caps 37 , 39 .
  • the Z-shaped element 63 comprises web 65 and caps 67 , 69 . Both elements 33 , 63 and are placed one at each side of the corrugated web 21 .
  • the webs 35 , 65 of elements 33 , 63 are bonded (co-cured, co-bonded or secondary bonded depending on the manufacturing process) to the aligned parts 23 , 22 of the web 21 in planes 27 , 25 .
  • Its upper caps 37 , 67 are bonded to form the upper beam flange 17 .
  • Its lower caps 39 , 69 are bonded to flange 9 to form the lower beam flange 19 .
  • Manufacturing methods to be applied could be pre-impregnated material laid by means of ATL equipment for the different elements with subsequent hot-forming, curing, co-bonding and/or secondary bonding steps, but also textiles laid up on moulds and infused with resin systems (liquid or film) prior to curing of elements and bonding processes.

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Mechanical Engineering (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Composite Materials (AREA)
  • Rod-Shaped Construction Members (AREA)
  • Laminated Bodies (AREA)
US11/270,803 2005-09-13 2005-11-09 Composite beam with corrugated web Abandoned US20070056246A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP5381044 2005-09-13
EP05381044A EP1762666B1 (fr) 2005-09-13 2005-09-13 Poutre composite avec âme ondulée

Publications (1)

Publication Number Publication Date
US20070056246A1 true US20070056246A1 (en) 2007-03-15

Family

ID=35717435

Family Applications (1)

Application Number Title Priority Date Filing Date
US11/270,803 Abandoned US20070056246A1 (en) 2005-09-13 2005-11-09 Composite beam with corrugated web

Country Status (5)

Country Link
US (1) US20070056246A1 (fr)
EP (1) EP1762666B1 (fr)
AT (1) ATE486183T1 (fr)
DE (1) DE602005024398D1 (fr)
ES (1) ES2355263T3 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20060237588A1 (en) * 2005-03-31 2006-10-26 The Boeing Company Composite structural member having an undulating web and method for forming the same
US20110113725A1 (en) * 2008-04-11 2011-05-19 Qld Steel Pty Ltd Structural building components and method of constructing same
US20110155315A1 (en) * 2009-12-24 2011-06-30 Ali'i Pacific LLC Preservative-treated i-joist and components thereof
US10696374B2 (en) * 2016-11-21 2020-06-30 Yevgeniy Il'ich Sher Composite material and aircraft improvements

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7467763B2 (en) 2005-06-03 2008-12-23 Kismarton Max U Composite landing gear apparatus and methods
US7721495B2 (en) 2005-03-31 2010-05-25 The Boeing Company Composite structural members and methods for forming the same
US8444087B2 (en) 2005-04-28 2013-05-21 The Boeing Company Composite skin and stringer structure and method for forming the same
US7818945B2 (en) * 2005-03-31 2010-10-26 The Boeing Company Composite structural member having an undulating web and method for forming same
US7740932B2 (en) 2005-03-31 2010-06-22 The Boeing Company Hybrid fiberglass composite structures and methods of forming the same
US7748119B2 (en) 2005-06-03 2010-07-06 The Boeing Company Method for manufacturing composite components
RU2492301C1 (ru) * 2012-03-16 2013-09-10 Иван Сергеевич Рыбкин Балка с гофрированной асимметричным профилем стенкой
US9878773B2 (en) 2012-12-03 2018-01-30 The Boeing Company Split resistant composite laminate
RU2664520C1 (ru) * 2017-11-21 2018-08-20 Михаил Борисович Жуков Тавровая балка
GB2571911A (en) * 2017-12-21 2019-09-18 Airbus Operations Gmbh A Stiffener for an Aircraft Assembly

Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US183160A (en) * 1876-10-10 Improvement in composite metallic girders
US2125690A (en) * 1933-11-02 1938-08-02 Budd Edward G Mfg Co Box section beam
US3300839A (en) * 1963-07-01 1967-01-31 Lihap Ind Method of making cambered beams
US4020202A (en) * 1973-07-07 1977-04-26 Maschinenfabrik Augsburg-Nurnberg Ag Beam and strut girder
US4084029A (en) * 1977-07-25 1978-04-11 The Boeing Company Sine wave beam web and method of manufacture
US4713924A (en) * 1982-07-09 1987-12-22 Toti Andrew J Structural beam and panel systems and methods and apparatus for making the same
US5417022A (en) * 1994-03-03 1995-05-23 The Budd Company Hybrid frame rail
US5956919A (en) * 1997-09-08 1999-09-28 Wilian Holding Co. Spanning member with convoluted web and C-shaped flanges
US20040040252A1 (en) * 2000-12-04 2004-03-04 Bruno Beral Composite beam with integrated rupture initiator and aircraft fuselage such beams
US20040226255A1 (en) * 2003-03-20 2004-11-18 Holloway Wynn Peter Composite beam

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2622163C3 (de) * 1976-05-19 1983-05-26 Messerschmitt-Bölkow-Blohm GmbH, 8000 München Profilträger aus faserverstärktem Werkstoff
US6520706B1 (en) * 2000-08-25 2003-02-18 Lockheed Martin Corporation Composite material support structures with sinusoidal webs and method of fabricating same
DE10351444A1 (de) * 2003-11-04 2005-06-09 Gerhards, Karl, Dipl.-Ing. Biegeträger aus höherfestem Stahl im Verbund mit Stahl geringerer Festigkeit oder im Verbund mit kohlenstofffaserverstärkten Kunststoffen (CFK)

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US183160A (en) * 1876-10-10 Improvement in composite metallic girders
US2125690A (en) * 1933-11-02 1938-08-02 Budd Edward G Mfg Co Box section beam
US3300839A (en) * 1963-07-01 1967-01-31 Lihap Ind Method of making cambered beams
US4020202A (en) * 1973-07-07 1977-04-26 Maschinenfabrik Augsburg-Nurnberg Ag Beam and strut girder
US4084029A (en) * 1977-07-25 1978-04-11 The Boeing Company Sine wave beam web and method of manufacture
US4713924A (en) * 1982-07-09 1987-12-22 Toti Andrew J Structural beam and panel systems and methods and apparatus for making the same
US5417022A (en) * 1994-03-03 1995-05-23 The Budd Company Hybrid frame rail
US5956919A (en) * 1997-09-08 1999-09-28 Wilian Holding Co. Spanning member with convoluted web and C-shaped flanges
US20040040252A1 (en) * 2000-12-04 2004-03-04 Bruno Beral Composite beam with integrated rupture initiator and aircraft fuselage such beams
US20040226255A1 (en) * 2003-03-20 2004-11-18 Holloway Wynn Peter Composite beam

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20060237588A1 (en) * 2005-03-31 2006-10-26 The Boeing Company Composite structural member having an undulating web and method for forming the same
US20110113725A1 (en) * 2008-04-11 2011-05-19 Qld Steel Pty Ltd Structural building components and method of constructing same
US8468774B2 (en) * 2008-04-11 2013-06-25 QLD Steel Pty, Ptd. Structural building components and method of constructing same
US20110155315A1 (en) * 2009-12-24 2011-06-30 Ali'i Pacific LLC Preservative-treated i-joist and components thereof
US10696374B2 (en) * 2016-11-21 2020-06-30 Yevgeniy Il'ich Sher Composite material and aircraft improvements

Also Published As

Publication number Publication date
ES2355263T3 (es) 2011-03-24
EP1762666B1 (fr) 2010-10-27
ATE486183T1 (de) 2010-11-15
DE602005024398D1 (fr) 2010-12-09
EP1762666A1 (fr) 2007-03-14

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Legal Events

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AS Assignment

Owner name: AIRBUS ESPANA, S.L., SPAIN

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:ESCOBAR BENAVIDES, FRANCISCO DE PAULA;CLARET VIROS, DANIEL;REEL/FRAME:017570/0659

Effective date: 20051221

AS Assignment

Owner name: AIRBUS OPERATIONS S.L., SPAIN

Free format text: CHANGE OF NAME;ASSIGNOR:AIRBUS ESPANA, S.L.;REEL/FRAME:026124/0168

Effective date: 20090320

STCB Information on status: application discontinuation

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