Rotor blade for a wind power plant

Fluid reaction surfaces (i.e. – impellers) – Specific blade structure – Integrally shaped or blended into hub

Reexamination Certificate

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C415S004300

Reexamination Certificate

active

07914261

ABSTRACT:
The invention concerns a rotor blade of a wind power installation and a wind power installation. One advantage of the present invention is to provide a rotor blade having a rotor blade profile, and a wind power installation, which has better efficiency than hitherto. A rotor blade of a wind power installation, wherein the rotor blade has a thickness reserve approximately in the range of between 15% and 40%, preferably in the range of between about 23% and 28%, and wherein the greatest profile thickness is between about 20% and 45%, preferably between about 32% and 36%.

REFERENCES:
patent: 1403069 (1922-01-01), Burne
patent: 2400388 (1946-05-01), Campbell
patent: 2428936 (1947-10-01), Hunter
patent: 2442783 (1948-06-01), Senn
patent: 2453403 (1948-11-01), Bogardus
patent: 2465007 (1949-03-01), Bragdon et al.
patent: 2485543 (1949-10-01), Andreau
patent: 2616509 (1952-11-01), Thomas
patent: 2622686 (1952-12-01), Chevreau et al.
patent: 2934150 (1960-04-01), Fink
patent: 3184187 (1965-05-01), Isaac
patent: 3463420 (1969-08-01), Butler et al.
patent: 3874816 (1975-04-01), Sweeney et al.
patent: 3987984 (1976-10-01), Fischer
patent: 4247253 (1981-01-01), Seki et al.
patent: 4274011 (1981-06-01), Garfinkle
patent: 4408958 (1983-10-01), Schacle
patent: 4419053 (1983-12-01), Swearingen, Jr.
patent: 4498017 (1985-02-01), Parkins
patent: 4519746 (1985-05-01), Wainauski et al.
patent: 4613760 (1986-09-01), Law
patent: 4692095 (1987-09-01), Lawson-Tancred
patent: 4699568 (1987-10-01), Harlamert et al.
patent: 4732542 (1988-03-01), Hahn et al.
patent: 4773824 (1988-09-01), Kiss
patent: 4773825 (1988-09-01), Rodde et al.
patent: 4830574 (1989-05-01), Wainauski et al.
patent: 4976587 (1990-12-01), Johnston et al.
patent: 5096378 (1992-03-01), Jamieson
patent: 5106265 (1992-04-01), Holzem
patent: 5320491 (1994-06-01), Coleman et al.
patent: 5417548 (1995-05-01), Tangler et al.
patent: 5474425 (1995-12-01), Lawlor
patent: 5527151 (1996-06-01), Coleman et al.
patent: 5562420 (1996-10-01), Tangler et al.
patent: 5570859 (1996-11-01), Quandt
patent: 5570997 (1996-11-01), Pratt
patent: 6015115 (2000-01-01), Dorsett et al.
patent: 6068446 (2000-05-01), Tangler et al.
patent: 6133716 (2000-10-01), Schutten
patent: 6420795 (2002-07-01), Mikhail et al.
patent: 6465902 (2002-10-01), Beauchamp et al.
patent: 6503058 (2003-01-01), Selig et al.
patent: 6523781 (2003-02-01), Ragner
patent: 6682302 (2004-01-01), Noble
patent: 6951443 (2005-10-01), Blakemore
patent: 7204674 (2007-04-01), Wobben
patent: 7357624 (2008-04-01), Wobben
patent: D584686 (2009-01-01), Gudewer
patent: 7708530 (2010-05-01), Wobben
patent: 2003/0099546 (2003-05-01), Stiesdal et al.
patent: 2007/0036657 (2007-02-01), Wobben
patent: 2007/0297909 (2007-12-01), Wobben
patent: 3126677 (1983-01-01), None
patent: 4002972 (1991-08-01), None
patent: 4428731 (1996-02-01), None
patent: 4435606 (1996-04-01), None
patent: 19719221 (1998-10-01), None
patent: 69415292 (1999-07-01), None
patent: 0283730 (1988-09-01), None
patent: 0375382 (1990-06-01), None
patent: 1184566 (2002-03-01), None
patent: 908631 (1946-04-01), None
patent: 2587675 (1987-03-01), None
patent: 2311978 (1997-10-01), None
patent: 55153870 (1980-12-01), None
patent: 5180146 (1993-07-01), None
patent: 577300 (1977-11-01), None
patent: 1539378 (1990-01-01), None
patent: 0155590 (2000-11-01), None
patent: 0183983 (2001-11-01), None
patent: 02051730 (2002-07-01), None
patent: 2004097215 (2004-11-01), None
Bjorck, Anders, “Coordinates and Calculations for the FFA-W1-xxx, FFA-W2-xxx and FFA-W3-xxx Series of Airfoils for Horizontal Axis Wind Turbines,” The Aeronautical Research Institute of Sweden, 1990, 150 pages, Stockholm, Sweden.
“Statement of Grounds and Particulars”, in re: Vestas Wind Systems A/S of Randers, Denmark, Comments in support of Notice of Opposition to Australian Patent Application No. 2003237707, Jul. 10, 2008, pp. 1-6, Hawthorn, Australia.
Hau, Erich,Windkraftanlagen, Springer-Verlag, 1988.
Timmer, W. et al., Thick airfoils for HAWTs, Journal of Wind Engineering and Industrial Aerodynamics, 1992, 151-160, vol. 39, Elsevier Science Publishers B.V., Amsterdam.

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