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| Number | Title | Issue Date |
| 8020803 | Rotorcraft engine and rotor speed synchronization Systems and methods are provided in which an electrical control system independently effects acceleration of both driven and driving elements of a clutch to engage each other. In preferred embodiments the clutch is not a friction clutch, but a dog clutch, and forms ... | 09/20/2011 |
| 7918415 | Convertible aircraft operating method The invention relates to a convertible aircraft operating method. According to the invention, the aircraft comprises: a fuselage, standard fixed wings which are equipped with ailerons, a tail unit with flight-control surfaces, engines, a rotor with blades, a transmi... | 04/05/2011 |
| 7866598 | Rotorcraft engine and rotor speed synchronization Systems and methods are provided in which an electrical control system independently effects acceleration of both driven and driving elements of a clutch to engage each other. In preferred embodiments the clutch is not a friction clutch, but a dog clutch, and forms ... | 01/11/2011 |
| 7857252 | Rotor/wing dual mode hub fairing system A hub fairing system (12) for a stopped-rotor aircraft (10) having a fuselage (14) including a hub (16). The hub (16) is mechanically coupled to the fuselage (14) and to multiple blades (40) and is rotated by an engin... | 12/28/2010 |
| 7584923 | Tilt-rotor aircraft A tilt-rotor aircraft (1) comprising a pair of contra-rotating co-axial tiltable rotors (11) on the longitudinal center line of the aircraft. The rotors (11) may be tiltable sequentially and independently. They may be moveable between a lift pos... | 09/08/2009 |
| 7434763 | Rotor/wing dual mode hub fairing system A hub fairing system (12) for a stopped-rotor aircraft (10) having a fuselage (14) including a hub (16). The hub (16) is mechanically coupled to the fuselage (14) and to multiple blades (40) and is rotated by an engin... | 10/14/2008 |
| 7367532 | High lift longitudinal axis control system A bipartite, full span airplane flap system having an inboard flap portion and an outboard flap portion, wherein the outboard flap portion includes an integrated aileron mounted on its substantially equivalent spanwise length. ... | 05/06/2008 |
| 7364114 | Aircraft The present invention concerns an aircraft having a plurality of lifting and thrust rotors, with an electric motor and an inverter for each motor. In order to provide an aircraft having a greater payload, connecting bars are provided between the motors. In that resp... | 04/29/2008 |
| 7334755 | Tandem rotor wing and tandem fixed wing aircraft Aircraft comprising an airframe having a fuselage, at least two fixed wing sets. A first fixed wing set of the fixed wing sets is positioned closer to a forward end of the fuselage than a second fixed wing set and the second fixed wing set is positioned closer to th... | 02/26/2008 |
| 7322545 | Structural mechanism for unlocking and engaging a controllable surface on a hinged platform (wing) A structural mechanism for an aircraft includes a support, a hinged surface, and a hinge assembly joining the hinged surface to the support. An actuation system includes an actuator shaft engaged to the hinges and lying coincident with a hinged-surface hinge axis an... | 01/29/2008 |
| 7317260 | Wind flow estimation and tracking using tower dynamics A turbine control system for a variable speed electrical generator in a wind turbine mounted atop a support tower. The wind turbine converts wind energy into a driving torque applied to the generator. The control system includes a turbine support tower position sens... | 01/08/2008 |
| 7311288 | Aircraft wing structure and a method for decreasing flight speed of the aircraft The invention provides a wing structure for an aircraft, including a top skin and a bottom skin defining a primary wing surface, the surface having a width, a length, a leading edge and a trailing edge; a flap having a width smaller than the width of the wing surfac... | 12/25/2007 |
| 7281683 | Process for aiding the takeoff of an aircraft An aircraft takeoff process may include applying a pitch command deflecting an adjustable horizontal tailplane of the aircraft by a predetermined angle. Thereafter, the pitch command is corrected in accordance with the deviation between a takeoff rotation speed and ... | 10/16/2007 |
| 7278679 | Automotive vehicle with structural panel having selectively deployable shape memory alloy elements A structural panel for an automotive vehicle includes an outer panel and a variable strength inner panel attached to the outer panel. The inner panel utilizes active elements formed from shape memory alloy (SMA). A controller activates the SMA elements so as to tran... | 10/09/2007 |
| 7271741 | Method and device for detecting an overstepping of design loads of the fin of an aircraft A method and device for detecting an overstepping of design loads of the fin of an aircraft. The device includes a set of information sources and a section for determining, with the aid of information emanating from the set of information sources, a current bending ... | 09/18/2007 |
| 7246769 | Vehicles particularly useful as VTOL vehicles A vehicle including a fuselage, at least one lift-producing propeller carried by the fuselage on each side of its transverse axis a pilot's compartment formed in the fuselage between the lift-producing propellers and substantially aligned with the longitudinal axis,... | 07/24/2007 |
| 7246770 | Aircraft with rotatable leading edge of fuselage and wings A rotatable leading edge for the fuselage and wings of an aircraft is disclosed. The leading edge may be rotated from an undeflected or retracted position adjacent to the fuselage and wings to a deflected or extended position. In the extended position, the leading e... | 07/24/2007 |
| 7216476 | Two-axis thrust vectoring nozzle A nozzle for a jet engine generally includes a nozzle rim and a bendable duct for communicating an exhaust flow generated by the engine to the nozzle rim. A gimbal joint pivotably couples the nozzle rim to supporting structure. The gimbal joint allows the nozzle rim... | 05/15/2007 |
| 7216835 | Aircraft with extendable leading edge of fuselage and wings An extendable leading edge for the fuselage and wings of an aircraft is disclosed. The leading edge may be extended from a retracted position adjacent to the fuselage and wings to an extended position. In the extended position, the leading edge increases lift of the... | 05/15/2007 |
| 7204454 | Aircraft with articulated leading edge of fuselage and wings An articulated leading edge for the fuselage and wings of an aircraft is disclosed. The leading edge may be moved from an undeflected or retracted position adjacent to the fuselage and wings to a deflected or extended position. The leading edge includes fuselage and... | 04/17/2007 |
| 7201347 | Process for improving the landing of an aircraft A process for improving the landing of an aircraft may include, prior to the aircraft contacting the ground, nose-up under-deflecting the aircraft's adjustable horizontal tail plane and nose-up deflecting the elevators. This arrangement increases the maximum nosedow... | 04/10/2007 |
| 7198223 | Ultralight coaxial rotor aircraft An ultralight coaxial dual rotor helicopter having a substantially L shaped frame. Attached to the back of the frame is a vertical shaft engine, and a pair of yaw paddles for controlling yaw of the craft. The drive shaft connects to a belt drive at the top of the fr... | 04/03/2007 |
| 7188802 | Convertible aircraft provided with two tilt fans on either side of the fuselage, and with a non-tilting fan inserted in the fuselage The present invention relates to a convertible aircraft provided with first and second tilt fans disposed on either side of the fuselage a little forward of the center of gravity of the convertible aircraft. In addition, the convertible aircraft includes, in remarka... | 03/13/2007 |
| 7184590 | Algorithm selector A method and system for processing image data to identify characteristics of a captured scene. Image data corresponding to a captured scene is processed by processing algorithms to produce processed signals for use in identifying characteristics of the captured scen... | 02/27/2007 |
| 7178859 | Method for controlling airflow An airflow control device comprises a body and an active material in operative communication with the body. The active material, such as shape memory material, is operative to change at least one attribute in response to an activation signal. The active material can... | 02/20/2007 |
| 7178395 | Control logic for fluid flow control devices A system for controlling fluid flow about a vehicle. The system comprises a fluid flow control device, an obstacle sensor for detecting obstacles, and a controller. The fluid flow control device has a body with at least one surface and an actuation means in operativ... | 02/20/2007 |
| 7159817 | Vertical take-off and landing (VTOL) aircraft with distributed thrust and control An aircraft having a vertical take-off and landing (VTOL) propulsion system. The aircraft includes a fuselage, the VTOL propulsion system, at least one forward thruster, a power source used for both the VTOL propulsion system and forward thruster, fore and aft wings... | 01/09/2007 |
| 7147269 | Airflow control devices using current An airflow control device comprises a body and an active material in operative communication with the body. The active material, such as a shape memory material, is operative to change at least one attribute in response to an activation signal. The active material c... | 12/12/2006 |
| 7147182 | Gas-powered tip-jet-driven tilt-rotor compound VTOL aircraft A tilt-rotor compound VTOL aircraft has a multiple-flow thrust generator(s) comprising a gas-powered tip-jet driven rotor(s) having a thrust-augmentation ratio of at least two; that tilts about the aircraft's pitch axis wherein the rotor's plane of rotation is subst... | 12/12/2006 |
| 7147271 | Airflow control devices with planar surfaces An airflow control device comprises a body and an active material in operative communication with the body. The active material, such as a shape memory material, is operative to change at least one attribute in response to an activation signal. The active material c... | 12/12/2006 |
| 7143973 | Avia tilting-rotor convertiplane The present invention provides a tilt rotor aircraft having a centrally mounted tiltable engine and rotor assembly. A turbine or other type of engine (or engines) is pivotally mounted on a central frame above and between the pilot and co-pilot, who occupy separate a... | 12/05/2006 |
| 7137786 | Tilting transmission gearbox comprising a pivoting connection with plain bearings A transmission gearbox (1) has a casing (2) that tilts around a tilting axis (B—B) via two bearings (19). Each of the bearings includes: a fixed part (20) having a sleeve (20a); and a trunnion (21a) which bel... | 11/21/2006 |
| 7137591 | Tilting mast in a rotorcraft A rotorcraft includes a fuselage, a rotor assembly, a tail section connected to the fuselage, a propulsion system including an engine mounted to the fuselage, and a wing mounted to the fuselage. The rotor assembly includes a rotor having either a single or a plurali... | 11/21/2006 |
| 7137589 | Compound helicopter with combined wings and landing struts The invention is a helicopter that includes a fuselage with a longitudinal axis, a main rotor and tail rotor; and right and left wings mounted to said fuselage. The right and left wings having at least a portion of which are rotatable from a horizontal position wher... | 11/21/2006 |
| 7137590 | Lubricating installation for rocking power transmission box An installation includes at least a pressurized lubricating circuit for elements housed in the rocking crankcase, each circuit including a radial transfer bearing between two opposite cylindrical journals coaxial about the rocking axis, one fixed journal on a fixed ... | 11/21/2006 |
| 7107757 | Aircraft provided with thrust reversers Some but not all engines of an aircraft are provided with thrust reversers. A safety device disables, at least from the position corresponding to idling, the action of the throttles corresponding to the engines devoid of thrust reversers when the thrust reversers ar... | 09/19/2006 |
| 7090550 | Propeller with variable geometry and method for varying geometry of a propeller The present invention broadly comprises a propeller having a blade assembly with a plurality of linking members operatively connected to change dimensions of the blade assembly as the linking members are moved with respect to one another. It further includes a blade... | 08/15/2006 |
| 7077358 | Helicopter with torque-correcting thruster device A helicopter having a torque-correcting thruster device. The helicopter has an aerodynamic body which has opposite side portions, a top portion and a bottom portion. The aerodynamic body has a cockpit and a pilot seat in the cockpit. The helicopter includes landing ... | 07/18/2006 |
| 7070145 | Tailboom-stabilized VTOL aircraft A disclosed flying craft includes a suspension structure having a first end and a second end, a lift unit, and a payload unit. The lift unit includes a nacelle and a tailboom, and pivotally couples to the first end of the suspension structure, and a payload unit cou... | 07/04/2006 |
| 7063291 | Amphibian delta wing jet aircraft An amphibian delta wing jet aircraft, which has a plurality of triangular folding wing panels, two of which are hingedly attached to a lifting shape body, which incorporates a W-shaped hull in it's cross section of a fuselage so that the craft operates efficiently a... | 06/20/2006 |
