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Class Information
Number: 244/7R
Name: Aeronautics > Aircraft, heavier-than-air > Airplane and helicopter sustained > Convertible
Description:


Sub-classes under this class:

Class Number Class Name Patents
244/7A Rotary wing 41
244/7B Tail sitters 26
244/7C Tilting wing 31


Patents under this class:
1 2

Patent Number Title Of Patent Date Issued
7611090 Reaction-drive rotorcraft having an adjustable blade jet Nov. 3, 2009
7584923 Tilt-rotor aircraft Sep. 8, 2009
7571879 Automatic conversion system for tiltrotor aircraft Aug. 11, 2009
7188802 Convertible aircraft provided with two tilt fans on either side of the fuselage, and with a non-tilting fan inserted in the fuselage Mar. 13, 2007
7147182 Gas-powered tip-jet-driven tilt-rotor compound VTOL aircraft Dec. 12, 2006
7143973 Avia tilting-rotor convertiplane Dec. 5, 2006
7070145 Tailboom-stabilized VTOL aircraft Jul. 4, 2006
7014142 Low-drag rotor/wing flap Mar. 21, 2006
6978970 Aircraft with foldable tail assembly Dec. 27, 2005
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
6868315 Flight control system for controlling the pitch of an aircraft with vertical takeoff and with an orientable lift direction Mar. 15, 2005
6863241 Control of an aircraft as a thrust-vectored pendulum in vertical, horizontal and all flight transitional modes thereof Mar. 8, 2005
6863242 Method and system for controlling an aircraft control surface Mar. 8, 2005
6845939 Tailboom-stabilized VTOL aircraft Jan. 25, 2005
6845941 Rotary/fixed wing aircraft Jan. 25, 2005
6830215 Pivoting transmission unit with a device to take up play along the pivot axis Dec. 14, 2004
6824096 Device for controlling the pitch of the blades of a convertible aircraft rotor Nov. 30, 2004
6719244 VTOL aircraft control using opposed tilting of its dual propellers or fans Apr. 13, 2004
6695254 Rotary-wing aircraft rotor with constant velocity drive Feb. 24, 2004
6676073 Pivoting power transmission unit with peripheral face toothed gearwheels of the face gear type Jan. 13, 2004
6669137 Air vehicle having rotor/scissors wing Dec. 30, 2003
6644588 Multi-mode tiltrotor nacelle control system with integrated envelope protection Nov. 11, 2003
6634861 Power plant for propeller aircraft Oct. 21, 2003
6622962 Fixed wing aircraft having powered rotor VTOL capability with rotor blades stowable during horizontal flight Sep. 23, 2003
6604706 Gyrostabilized self propelled aircraft Aug. 12, 2003
6592071 Flight control system for a hybrid aircraft in the lift axis Jul. 15, 2003
6561455 Vertical take-off and landing, aerodynamically self-sustained horizontal flight hybrid aircraft May. 13, 2003
6497385 Rotor blade with optimized twist distribution Dec. 24, 2002
6457672 Propulsion nacelle alignment system for tilt-rotor aircraft Oct. 1, 2002
6367736 Convertiplane Apr. 9, 2002
6343768 Vertical/short take-off and landing aircraft Feb. 5, 2002
6328256 Low-height tunable tilt rotor downstop Dec. 11, 2001
6290171 Device for controlling a helicopter hybrid countertorque system Sep. 18, 2001
6260793 Convertible aircraft with tilting rotors Jul. 17, 2001
6247667 Tiltrotor aircraft pylon conversion system Jun. 19, 2001
6234422 Uniblade air rotor and flight and covercraft vehicles with its May. 22, 2001
6227481 Method and apparatus for controlling force fights in a rotating shaft May. 8, 2001
6220545 Method and apparatus for sensing preload in a tilt rotor downstop Apr. 24, 2001
6161800 Pivoting spanwise-flow redirector for tiltrotor aircraft Dec. 19, 2000
6082968 Centrifugally activated variable damper assembly Jul. 4, 2000
5984635 Keller pressure jet rotor system Nov. 16, 1999
5868351 Rotor blade stowing system Feb. 9, 1999
5863013 STOL/VTOL free wing aircraft with improved shock dampening and absorbing means Jan. 26, 1999
5839691 Vertical takeoff and landing aircraft Nov. 24, 1998
5823470 Split torque proprotor transmission Oct. 20, 1998
5709357 Tiltrotor helicopter Jan. 20, 1998
5395073 STOL/VTOL free wing aircraft with articulated tail boom Mar. 7, 1995
5388785 Single-rotor helicopter having a compound anti-torque system, and a method of countering the torque induced by said single rotor Feb. 14, 1995
5337974 Wing pivot structure Aug. 16, 1994

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