Fluid reaction surfaces (i.e. – impellers) – Specific blade structure – Laminated – embedded member or encased material
Reexamination Certificate
2011-03-08
2011-03-08
Look, Edward (Department: 3745)
Fluid reaction surfaces (i.e., impellers)
Specific blade structure
Laminated, embedded member or encased material
C416S500000
Reexamination Certificate
active
07901189
ABSTRACT:
Low-noise wind turbine blades are provided wherein metallic and/or polymeric cellular materials that are capable of bearing directional loads are used in the construction of wind turbine blade parts or entire sections. The use of such materials influences the air flow over them in such a way that the resulting boundary-layer turbulence is damped in a controlled way, thus weakening the noise scattering mechanism at the trailing edge, and the scattered acoustic waves are absorbed and attenuated by the material acting as an acoustic liner.
REFERENCES:
patent: 3779338 (1973-12-01), Hayden et al.
patent: 4089618 (1978-05-01), Patel
patent: 4140433 (1979-02-01), Eckel
patent: 4339230 (1982-07-01), Hill
patent: 4534526 (1985-08-01), Metzger et al.
patent: 4976587 (1990-12-01), Johnston et al.
patent: 5074376 (1991-12-01), Powell
patent: 5257902 (1993-11-01), Atarashi et al.
patent: 5403161 (1995-04-01), Nealon et al.
patent: 5437419 (1995-08-01), Schmitz
patent: 5478029 (1995-12-01), Schmitz
patent: 5634771 (1997-06-01), Howard et al.
patent: 5720597 (1998-02-01), Wang et al.
patent: 5791879 (1998-08-01), Fitzgerald et al.
patent: 5823467 (1998-10-01), Mathur
patent: 5839882 (1998-11-01), Finn et al.
patent: 5931641 (1999-08-01), Finn et al.
patent: 6139278 (2000-10-01), Mowbray et al.
patent: 6358013 (2002-03-01), Rose et al.
patent: 6443700 (2002-09-01), Grylls et al.
patent: 6470568 (2002-10-01), Fried et al.
patent: 6514046 (2003-02-01), Morrison et al.
patent: 6582812 (2003-06-01), Grylls et al.
patent: 2254382 (1992-10-01), None
patent: WO 01/98653 (2001-12-01), None
Gupta Anurag
Maeder Thierry
General Electric Company
Look Edward
Nixon & Vanderhye PC
White Dwayne J
LandOfFree
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