Helicopter

Details Helicopter Helicopter

2006-06-26

2011-10-11

Dinh, Tien (Department: 3644)

Aeronautics and astronautics

Aircraft, heavier-than-air

Helicopter or auto-rotating wing sustained, i.e., gyroplanes

C244S00700B, C244S00700B

Reexamination Certificate

active

08033498

ABSTRACT:
A helicopter (2) comprising a body portion (4), a plurality of rotor blades (6) which are mounted for rotation with respect to the body portion (4), and a fan (8) which is mounted for rotation in an opposite direction to the direction of rotation of the rotors (6), the rotor blades (6) being such that they are spaced apart in a vertical direction, and the fan (8) being such that when it rotates it generates a torque which acts to counteract at least a part of the torque generated by the rotor blades (6) when they rotate.

REFERENCES:
patent: 1132049 (1915-03-01), Waller
patent: 1350454 (1920-08-01), Hewitt
patent: 1360933 (1920-11-01), Griffin
patent: 1414410 (1922-05-01), Haupt
patent: 1705489 (1929-03-01), Mladinich
patent: 1838248 (1931-12-01), Bourland
patent: 2111988 (1938-03-01), Percival
patent: 2806662 (1957-09-01), Yonkers
patent: 2947496 (1960-08-01), Leggett
patent: 2948490 (1960-08-01), Munoz
patent: 2996269 (1961-08-01), Parry
patent: 3018984 (1962-01-01), Rust
patent: 3041012 (1962-06-01), Gibbs
patent: 3096953 (1963-07-01), Koump
patent: 3103327 (1963-09-01), Parry
patent: 3507461 (1970-04-01), Rosta
patent: 3722830 (1973-03-01), Barber
patent: 3838835 (1974-10-01), Kling
patent: 3884431 (1975-05-01), Burrell
patent: 4184654 (1980-01-01), Herrera
patent: 4296892 (1981-10-01), Barge
patent: 4589611 (1986-05-01), Ramme et al.
patent: 4606515 (1986-08-01), Hickey
patent: D312067 (1990-11-01), Walling
patent: D430530 (2000-09-01), Milde, Jr.
patent: 6179247 (2001-01-01), Milde, Jr.
patent: 6886777 (2005-05-01), Rock
patent: 2004/0144892 (2004-07-01), Gerbino
patent: 2004/0179941 (2004-09-01), Negulescu
patent: 2005/0067527 (2005-03-01), Petersen
patent: 06416 (1911-01-01), None

Affiliated with

Also associated with

Rating

Helicopter does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Helicopter, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Helicopter will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-4298807