Fluid reaction surfaces (i.e. – impellers) – Articulated – resiliently mounted or self-shifting impeller... – Sectional – staged or nonrigid working member
Reexamination Certificate
2006-08-01
2006-08-01
Look, Edward K. (Department: 3745)
Fluid reaction surfaces (i.e., impellers)
Articulated, resiliently mounted or self-shifting impeller...
Sectional, staged or nonrigid working member
C416S22300B
Reexamination Certificate
active
07083383
ABSTRACT:
A trim tab assembly for a helicopter rotor blade includes a plurality of metal panels that are secured to the trailing edge of a composite material helicopter blade. Each of the metal panels can be bent relative to the rotor blade to tune the aerodynamic properties of the rotor blade.
REFERENCES:
patent: 2760588 (1956-08-01), Zeerip
patent: 4188171 (1980-02-01), Baskin
patent: 2004/0253108 (2004-12-01), Schmaling et al.
Loftus Robert T.
McNulty Michael J.
Smith Keith B.
Edgar Richard A.
Look Edward K.
Thompson & Coburn LLP
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