Vertical take-off tilt rotor aircraft

Aeronautics and astronautics – Aircraft – heavier-than-air – Helicopter or auto-rotating wing sustained – i.e. – gyroplanes

Reexamination Certificate

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Reexamination Certificate

active

08042762

ABSTRACT:
A vertical take-off aircraft having a main power plant at the top of the aircraft to provide lift and an additional power plant to force air to travel in a horizontal direction to counteract the rotational force exerted on the main body of the aircraft by the main power plant. The additional power plant is connected to the aircraft such that tilting of the main power plant relative to the main body of the aircraft is able to cause the additional power plant to move relative to the main body of the aircraft.

REFERENCES:
patent: 2378617 (1945-06-01), Burke
patent: 2569882 (1951-10-01), De Bothezat
patent: 2589030 (1952-03-01), Alde
patent: 2677431 (1954-05-01), Prince
patent: 2724446 (1955-11-01), Hill
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patent: 2861641 (1958-11-01), Bensen
patent: 3100610 (1963-08-01), Armstrong
patent: 3135481 (1964-06-01), Sudrow
patent: 3428271 (1969-02-01), Hollrock et al.
patent: 3474987 (1969-10-01), Meditz
patent: 3554467 (1971-01-01), Yowell
patent: 3921939 (1975-11-01), Garfinkle
patent: 4358073 (1982-11-01), Eickmann
patent: 4720059 (1988-01-01), Stearns
patent: 6598827 (2003-07-01), Kusic
patent: 675906 (1996-05-01), None
patent: 19540272 (1997-04-01), None
patent: WO 84/00339 (1984-02-01), None
patent: WO 85/03052 (1985-07-01), None

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