Reduced visibility rotorcraft and method of controlling...

Details Reduced visibility rotorcraft and method of controlling... Reduced visibility rotorcraft and method of controlling...

2006-06-13

2006-06-13

Dinh, Tien (Department: 3644)

Amusement devices: toys

Aerodynamically supported or retarded

C244S017110

Reexamination Certificate

active

07059931

ABSTRACT:
A rotary aircraft (rotorcraft) in which the entire aircraft rotates about its center of mass as it flies, and in which the center of mass is located external to the aircraft in the generally triangular region formed by the aircraft's single wing and two propellers. As the aircraft flies, the two propellers provide torque about the center of mass and rotate the wing, which provides lift for the aircraft. The aircraft is controllable via a stationary radio transmitter that sends commands for pitch, roll, yaw and altitude. A receiver in the aircraft uses the transmitted signal to establish the aircraft's instantaneous orientation in combination with the sent commands to generate control signals that drive the propeller motors that affect the aircraft's attitude. Pitch and roll are controlled by pulse width modulation of the propeller motor voltages in order to affect the thrust at specific portions of the aircraft's rotation cycle.

REFERENCES:
patent: 1413316 (1922-04-01), Bradley
patent: 1576913 (1926-03-01), Jones
patent: 1651273 (1927-11-01), Heller
patent: 3119196 (1964-01-01), Alberico et al.
patent: 3632065 (1972-01-01), Rosta
patent: 3700172 (1972-10-01), Gallegos, Sr.
patent: 3752417 (1973-08-01), Lagace
patent: 3873049 (1975-03-01), Horsdal
patent: 3915414 (1975-10-01), Shoulders
patent: 4214720 (1980-07-01), DeSautel
patent: 4386748 (1983-06-01), Jordan
patent: 4795111 (1989-01-01), Moller
patent: 4824048 (1989-04-01), Kim
patent: 4976395 (1990-12-01), Von Kozierowski
patent: 5064143 (1991-11-01), Bucher
patent: 5070955 (1991-12-01), Lissaman et al.
patent: 5082079 (1992-01-01), Lissaman et al.
patent: 5213284 (1993-05-01), Webster
patent: 5297759 (1994-03-01), Tilbor et al.
patent: 5383810 (1995-01-01), Loving
patent: 5419514 (1995-05-01), Ducan
patent: 5507453 (1996-04-01), Shapery
patent: 5634839 (1997-06-01), Dixon
patent: 5672086 (1997-09-01), Dixon
patent: 5757288 (1998-05-01), Dixon et al.
patent: 5873545 (1999-02-01), Kapin et al.
patent: 5971320 (1999-10-01), Jermyn et al.
patent: 6086016 (2000-07-01), Meek
patent: 6193189 (2001-02-01), Keever
patent: 6322418 (2001-11-01), Hippely et al.
patent: 6347764 (2002-02-01), Brandon et al.
Charybdis, American Aircraft Modeler, Oct. 1972 (1 sheet).
Wirral Rocketry Society, articles, monocopter, by Dave Russell, Oct. 2002 (3 sheets).
Apogee Components, “Monocopters” , by Francis Graham (1 sheet).
Raytheon Engineers Fly High With Low-Tech Gear; Giving the “Whirl” a Whirl, by Jonathan Karp, Copyright 2004 Raytheon Company (2 sheets).

Affiliated with

Also associated with

Rating

Reduced visibility rotorcraft and method of controlling... does not yet have a rating. At this time, there are no reviews or comments for this patent.

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

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3705026