Aeronautics and astronautics – Aircraft – heavier-than-air – Helicopter or auto-rotating wing sustained – i.e. – gyroplanes
Reexamination Certificate
2007-04-17
2007-04-17
Dinh, Tien (Department: 3644)
Aeronautics and astronautics
Aircraft, heavier-than-air
Helicopter or auto-rotating wing sustained, i.e., gyroplanes
Reexamination Certificate
active
10824492
ABSTRACT:
The present invention discloses a rotor that enables an aircraft to be passively stable in hover. The rotor, having a generally fixed geometry is tiltably connected to its rotor shaft. The outer part of the rotor blades have a pitch fixed relative to the rotational plane, whereas the inner part of the rotor blades have a pitch fixed relative to a reference plane perpendicular to the rotor shaft.
REFERENCES:
patent: 2455866 (1948-12-01), Kaman
patent: 3213944 (1965-10-01), Nichols
patent: 3273824 (1966-09-01), Owens
patent: 3606209 (1971-09-01), Rosta et al.
patent: 4092084 (1978-05-01), Barltrop
patent: 5082079 (1992-01-01), Lissaman et al.
patent: 5255871 (1993-10-01), Ikeda
patent: 5297759 (1994-03-01), Tilbor
patent: 5971320 (1999-10-01), Jermyn
patent: 6086016 (2000-07-01), Meek
patent: 6182923 (2001-02-01), Weinhart
patent: 6460802 (2002-10-01), Norris
patent: 6659395 (2003-12-01), Rehkemper
patent: 6732973 (2004-05-01), Rehkemper
patent: 2003/0111575 (2003-06-01), Rehkemper
patent: 2003/0132341 (2003-07-01), Glomstad
patent: 552 088998 (1977-07-01), None
Abel Christian D.
Dinh Tien
Proxflyer AS
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