Amusement devices: toys – Aerodynamically supported or retarded – Including rotary wing
Reexamination Certificate
2006-09-05
2006-09-05
Dinh, Tien (Department: 3644)
Amusement devices: toys
Aerodynamically supported or retarded
Including rotary wing
C244S017110
Reexamination Certificate
active
07101246
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.
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Altera Law Group LLC
Dinh Tien
Stone Jeffrey R.
VeraTech Aero-RPV Corporation
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