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Class Information
Number: 244/17.19
Name: Aeronautics > Aircraft, heavier-than-air > Helicopter or auto-rotating wing sustained, i.e., gyroplanes > With auxiliary propulsion, counter-troque or steering device
Description: Gyroplanes combined with means in addition to the rotating wing and operating during flight to (1) propel the craft, (2) counteract the torque of the rotating wing, or (3) steer the aircraft.
Sub-classes under this class:
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7451949 |
Method for using a tiltable stabilizer to reduce vibration generated on the fuselage of a helicopter |
Nov. 18, 2008 |
| 7395988 |
Rotor wing aircraft having an adjustable tail nozzle |
Jul. 8, 2008 |
| 7231997 |
Hybrid drive powered lift platform |
Jun. 19, 2007 |
| 7178757 |
Motorcycle rider autogyro |
Feb. 20, 2007 |
| 7104499 |
Rechargeable compressed air system and method for supplemental aircraft thrust |
Sep. 12, 2006 |
| 7077358 |
Helicopter with torque-correcting thruster device |
Jul. 18, 2006 |
| 7063289 |
Helicopter tail section |
Jun. 20, 2006 |
| 7032860 |
Emergency anti-torque thruster system |
Apr. 25, 2006 |
| 6929215 |
Rotor system for helicopters |
Aug. 16, 2005 |
| 6869045 |
Helicopter tail section and retrofit method |
Mar. 22, 2005 |
| 6863240 |
Hovering body |
Mar. 8, 2005 |
| 6758436 |
Pneumatic driven propeller related vehicles |
Jul. 6, 2004 |
| 6755374 |
Anti-Torque and yaw-control system for a rotary-wing aircraft |
Jun. 29, 2004 |
| 6732973 |
Stabilizer for a propeller related vehicle |
May. 11, 2004 |
| 6729576 |
Composite tail cone assembly |
May. 4, 2004 |
| 6715711 |
Hub-protecting cap for a helicopter tail rotor |
Apr. 6, 2004 |
| 6666404 |
Tripodal modular unmanned rotorcraft |
Dec. 23, 2003 |
| 6659395 |
Propellers and propeller related vehicles |
Dec. 9, 2003 |
| 6612195 |
Split-torque face gear transmission |
Sep. 2, 2003 |
| 6416015 |
Anti-torque and yaw-control system for a rotary-wing aircraft |
Jul. 9, 2002 |
| 6371408 |
Helicopter tail rotor authority altitude compensator |
Apr. 16, 2002 |
| 6352220 |
Helicopter tail boom with venting for alleviation and control of tail boom aerodynamic loads and method thereof |
Mar. 5, 2002 |
| 6290171 |
Device for controlling a helicopter hybrid countertorque system |
Sep. 18, 2001 |
| 6193189 |
Rotary engine and helicopter application |
Feb. 27, 2001 |
| 6161800 |
Pivoting spanwise-flow redirector for tiltrotor aircraft |
Dec. 19, 2000 |
| 6142418 |
Multi-path secondary power system for an aircraft |
Nov. 7, 2000 |
| 6123291 |
Device for controlling an aerodynamic surface for balancing a helicopter in terms of pitch |
Sep. 26, 2000 |
| 6098921 |
Rotary wing aircraft supplementary power drive system |
Aug. 8, 2000 |
| 6086016 |
Gyro stabilized triple mode aircraft |
Jul. 11, 2000 |
| 6077041 |
Reduction drive and torque-limiting clutch for autogyro aircraft |
Jun. 20, 2000 |
| 6065718 |
Universal VTOL power and rotor system module |
May. 23, 2000 |
| 6053452 |
Compensation apparatus for main rotor torque |
Apr. 25, 2000 |
| 6036141 |
Jet thruster for helicopter antitorque and yaw control system |
Mar. 14, 2000 |
| 6021976 |
Operation of a helicopter |
Feb. 8, 2000 |
| 6019313 |
Installation for mounting an engine on a deck and for connecting its output shaft to at least one driven mechanism |
Feb. 1, 2000 |
| 5996933 |
Aircraft |
Dec. 7, 1999 |
| 5934608 |
Efficient bi-directional air flow deflector |
Aug. 10, 1999 |
| 5820073 |
Helicopter having a balanced torque transmission and no tail rotor |
Oct. 13, 1998 |
| 5813292 |
Method for fabricating a split path transmission system providing equal torque splitting between the split load paths of each gear train thereof at a predefined operating point |
Sep. 29, 1998 |
| 5810285 |
Drive shaft casing for a ducted fan anti-torque device |
Sep. 22, 1998 |
| 5791594 |
Helicopter conversion |
Aug. 11, 1998 |
| 5791592 |
Helicopter with coaxial counter-rotating dual rotors and no tail rotor |
Aug. 11, 1998 |
| 5749540 |
System for controlling and automatically stabilizing the rotational motion of a rotary wing aircraft |
May. 12, 1998 |
| 5738301 |
Rotary-wing aircraft of the compound type, and rear structural element for such an aircraft |
Apr. 14, 1998 |
| 5676335 |
Airflow control system for a helicopter |
Oct. 14, 1997 |
| 5649678 |
Operation of a helicopter |
Jul. 22, 1997 |
| 5634611 |
Counter-torque device with rotor and flow straightening stator, both of which are ducted, and inclined flow-straightening vanes |
Jun. 3, 1997 |
| 5609312 |
Model helicopter |
Mar. 11, 1997 |
| 5607122 |
Tail rotor authority control for a helicopter |
Mar. 4, 1997 |
| 5605440 |
Flow-straightener vane made of composite, flow-straightener including it, for a counter-torque device with ducted rotor and ducted flow-straightening stator, and method for manufacturing them |
Feb. 25, 1997 |
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