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Class Information
Number: 244/6
Name: Aeronautics > Aircraft, heavier-than-air > Airplane and helicopter sustained
Description: Aeronautical machines having provision for sustentation in part or entirely by aerodynamic action on airfoils in fixed relation to the machines, having also provision for sustentation or vertical lift by means of screw propellers arranged to develop a substantial component of thrust in a vertical direction.
Sub-classes under this class:
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7600711 |
Flexible ducting system including an articulable sealed joint |
Oct. 13, 2009 |
| 7546975 |
Tandem rotor wing rotational position control system |
Jun. 16, 2009 |
| 7448571 |
Rotor collective pitch VS Mu to control flapping and mast/rotor tilt to control rotor RPM |
Nov. 11, 2008 |
| 7438259 |
Compound aircraft control system and method |
Oct. 21, 2008 |
| 7412825 |
Flow path splitter duct |
Aug. 19, 2008 |
| 7147182 |
Gas-powered tip-jet-driven tilt-rotor compound VTOL aircraft |
Dec. 12, 2006 |
| 7143973 |
Avia tilting-rotor convertiplane |
Dec. 5, 2006 |
| 7137589 |
Compound helicopter with combined wings and landing struts |
Nov. 21, 2006 |
| 7036768 |
Multi-purpose airship |
May. 2, 2006 |
| 7014142 |
Low-drag rotor/wing flap |
Mar. 21, 2006 |
| 6974105 |
High performance VTOL convertiplanes |
Dec. 13, 2005 |
| 6885917 |
Enhanced flight control systems and methods for a jet powered tri-mode aircraft |
Apr. 26, 2005 |
| 6873887 |
Rotor torque anticipator |
Mar. 29, 2005 |
| 6860449 |
Hybrid flying wing |
Mar. 1, 2005 |
| 6824094 |
Power assembly for ornicopter |
Nov. 30, 2004 |
| 6789764 |
Dual-flight mode tandem rotor wing |
Sep. 14, 2004 |
| 6695253 |
Method and apparatus for folding/unfolding the blades of a rotary-wing aircraft rotor |
Feb. 24, 2004 |
| 6672538 |
Transmission for a coaxial counter rotating rotor system |
Jan. 6, 2004 |
| 6644588 |
Multi-mode tiltrotor nacelle control system with integrated envelope protection |
Nov. 11, 2003 |
| 6604706 |
Gyrostabilized self propelled aircraft |
Aug. 12, 2003 |
| 6578793 |
Method and apparatus for fiber strap termination |
Jun. 17, 2003 |
| 6565038 |
Supersonic propellers for aircrafts |
May. 20, 2003 |
| 6513752 |
Hovering gyro aircraft |
Feb. 4, 2003 |
| 6467726 |
Aircraft and torque transmission |
Oct. 22, 2002 |
| 6450446 |
Counter rotating circular wing for aircraft |
Sep. 17, 2002 |
| 6398159 |
Arial disk |
Jun. 4, 2002 |
| 6382556 |
VTOL airplane with only one tiltable prop-rotor |
May. 7, 2002 |
| 6340133 |
System to transform a horizontal take-off and self-sustained horizontal flight airplane into self-sustained horizontal flight, vertical landing and take-off, hybrid integrated airplane |
Jan. 22, 2002 |
| 6311106 |
Automatic flat rate setting system for freight feeder aircraft and method of setting of engine flat rate |
Oct. 30, 2001 |
| 6234422 |
Uniblade air rotor and flight and covercraft vehicles with its |
May. 22, 2001 |
| 6170778 |
Method of reducing a nose-up pitching moment on a ducted unmanned aerial vehicle |
Jan. 9, 2001 |
| 6047924 |
Method of folding the blades of a main rotor of a rotary-wing aircraft, and apparatus for implementing the method |
Apr. 11, 2000 |
| 5984635 |
Keller pressure jet rotor system |
Nov. 16, 1999 |
| 5868351 |
Rotor blade stowing system |
Feb. 9, 1999 |
| 5839690 |
Inertial acceleration aircraft |
Nov. 24, 1998 |
| 5454530 |
Canard rotor/wing |
Oct. 3, 1995 |
| 5240204 |
Lift generating method and apparatus for aircraft |
Aug. 31, 1993 |
| 5190242 |
Model jet helicopter with solid-circular rotor blade |
Mar. 2, 1993 |
| 5174523 |
Compound helicopter with engine shaft power output control |
Dec. 29, 1992 |
| 5085315 |
Wide-range blade pitch control for a folding rotor |
Feb. 4, 1992 |
| 5042747 |
Vertical take-off aircraft |
Aug. 27, 1991 |
| 4928907 |
Compound helicopter with no tail rotor |
May. 29, 1990 |
| 4899957 |
Air borne craft, for example helicopter, and related devices |
Feb. 13, 1990 |
| 4845939 |
Gas turbine engine with bypass diverter means |
Jul. 11, 1989 |
| 4789115 |
VTOL aircraft |
Dec. 6, 1988 |
| 4783023 |
Helicopter rotor speed changing transmission |
Nov. 8, 1988 |
| 4768737 |
Helicopter control system |
Sep. 6, 1988 |
| 4730795 |
Heliplane |
Mar. 15, 1988 |
| 4726547 |
Helicopter with high forward speed |
Feb. 23, 1988 |
| 4711415 |
X-wing helicopter-scout attack configuration |
Dec. 8, 1987 |
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