Fluid reaction surfaces (i.e. – impellers) – Specific blade structure – Laminated – embedded member or encased material
Reexamination Certificate
2011-08-02
2011-08-02
Nguyen, Ninh H (Department: 3745)
Fluid reaction surfaces (i.e., impellers)
Specific blade structure
Laminated, embedded member or encased material
C416S226000, C416S230000, C416S24100B
Reexamination Certificate
active
07988423
ABSTRACT:
The invention relates to a wind turbine blade having at least one component formed of a fibrous composite material including two or more different types of carbon fibres having a different elastic modulus to each other. The proportions of the different types of fibres vary in the longitudinal direction of the blade such that the elastic modulus of the fibrous composite material increases towards the tip end of the blade. The two or more different types of carbon fibres may be incorporated in an inner beam and/or in the outer shell portions of the blade.
REFERENCES:
patent: 6835436 (2004-12-01), Reif et al.
patent: 7364407 (2008-04-01), Grabau et al.
patent: 7377752 (2008-05-01), Mohamed
patent: 7521105 (2009-04-01), Bech et al.
patent: 7802968 (2010-09-01), Jacobsen
patent: 2005/0186081 (2005-08-01), Mohamed
patent: 2006/0083907 (2006-04-01), Bech et al.
patent: 2007/0189903 (2007-08-01), Eyb
patent: 2008/0159871 (2008-07-01), Bech
patent: 2823070 (2002-10-01), None
patent: 03/078833 (2003-09-01), None
Calama A. Areal; International Search Reported issued in priority international application No. PCT/EP2009/005221; Nov. 4, 2010; 3 pages; European Patent Office.
Calama A. Areal; International Written Opinion issued in priority international application No. PCT/EP2009/005211; Nov. 4, 2010; 4 pages; European Patent Office.
John Twin; Search Report issued in priority UK patent application No. GB0813240.9; Nov. 12, 2008; 4 pages; UK Intellectual Property Office.
McDowell Liam
Nguyen Ninh H
Vestas Wind Systems A/S
Wood Herron & Evans L.L.P.
LandOfFree
Wind turbine blade does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Wind turbine blade, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Wind turbine blade will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2690539