...that after Walter Hunt patented the safety pin in 1849, he sold the rights to it for $400?
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| Number | Title | Issue Date |
| 8181903 | Aircraft having the ability for hovering flight, fast forward flight, gliding flight, short take-off, short landing, vertical take-off and vertical landing Aircraft having two, preferably four or more, rotors (20) in wing hatches (10) which can be closed. The closure mechanism has, at the top, individually curved elements on a rollshutter (scroll/roller blind) (40) and, at the bottom, a set of long... | 05/22/2012 |
| 7857253 | Ducted fan VTOL vehicles A vehicle including a fuselage having a longitudinal axis and a transverse axis, two Ducted Fan lift-producing propellers carried by the fuselage on each side of the transverse axis, a pilot's compartment formed in the fuselage between the lift-producing propellers ... | 12/28/2010 |
| 7735774 | VTOL aircraft with forward-swept fixed wing A fixed-wing VTOL aircraft features a forward-swept wing configuration coupled with a tripod arrangement of the engines (two forward, one rear), a forward-swept empennage or tail assembly, and a forward canard. The engines and wings/empennage are located relative to... | 06/15/2010 |
| 7665689 | Unconventional integrated propulsion systems and methods for blended wing body aircraft Integrated propulsion systems and methods for blended wing aircraft are disclosed. In one embodiment, a propulsion system at least one engine operatively disposed within an engine flow duct having an engine inlet and an engine exhaust aperture, and at least one fan ... | 02/23/2010 |
| 7487935 | Aircraft having variable incidence wing and air cushion landing system An aircraft including a fuselage and at least one wing which may vary incidence with respect to the fuselage for the purpose of extremely short take off and landing and an air cushion system mounted beneath the fuselage for the purpose of surface independent taxi, t... | 02/10/2009 |
| 7412825 | Flow path splitter duct A flow path splitter duct is provided. The flow path splitter duct includes a main hub, a first outlet hub and a second outlet hub. The main hub has a plurality of inlet ports each being separated by at least one wall. The first outlet hub has a plurality of first d... | 08/19/2008 |
| 7410122 | VTOL UAV with lift fans in joined wings A vertical takeoff and landing (“VTOL”) aircraft, e.g., an unmanned aerial vehicle (“UAV”), includes an elongated fuselage having a pair of forward swept wings and a pair of rearward swept canards, the outer tips of which are respectively joined with a respe... | 08/12/2008 |
| 7398946 | Power line sentry charging A rechargeable battery energized unmanned aerial vehicle having surveillance capability and an ability to clandestinely collect propulsion and other energy needs from a conveniently located and possibly enemy owned energy transmission line. Energy collection is by w... | 07/15/2008 |
| 7364115 | System and method for controlling engine RPM of a ducted fan aircraft An aircraft including a ducted fan and an engine for driving the ducted fan includes a plurality of vanes movably mounted to the aircraft at a substantially rectangular exhaust end of the aircraft. Each of the plurality of vanes is substantially rectangular or squar... | 04/29/2008 |
| 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 |
| 7318564 | Power line sentry charging A surveillance aircraft recharging system based on energy collection by magnetic induction from the current flowing in a randomly selected alternating current transmission line conductor. The charging energy originates in the magnetic field surrounding the current c... | 01/15/2008 |
| 7267299 | Aircraft An aircraft includes a fuselage with a circular airfoil body supported thereabove on a vertical drive shaft mechanism. The airfoil body includes an upper disk forming an upper surface of the body and a lower disk forming a lower surface of the body in which the uppe... | 09/11/2007 |
| 7267300 | Aircraft capable of vertical and short take-off and landing Aircraft comprising an airframe having a forward end, an aft end opposite the forward end, a top extending between the forward end and the aft end, and a bottom opposite the top side. The aircraft further includes a power plant mounted on the airframe. In addition, ... | 09/11/2007 |
| 7249732 | Aerodynamically stable, VTOL aircraft A hover aircraft employs an air impeller engine having an air channel duct and a rotor with outer ends of its blades fixed to an annular impeller disk that is driven by magnetic induction elements arrayed in the air channel duct. The air-impeller engine is arranged ... | 07/31/2007 |
| 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 |
| 7231997 | Hybrid drive powered lift platform An air-based thrust recovery system for use in a powered lift platform utilizing fixed-pitch propellers is provided. The system utilizes an air compressor coupled to the drive motor of the platform and an on-board, high pressure tank for air storage. The fixed-pitch... | 06/19/2007 |
| 7198225 | Aircraft control system A solar rechargeable, long-duration, span-loaded flying wing, having no fuselage or rudder. Having a two-hundred foot wingspan that mounts photovoltaic cells on most all of the wing's top surface, the aircraft uses only differential thrust of its eight propellers to... | 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 |
| 7185853 | Air discharge valve for an aircraft An air discharge valve for an aircraft has an inner valve flap (1) and an outer valve flap (3) which partially overlap each other to form a nozzle of the Laval type with a nozzle inlet (6) converging toward a nozzle neck (S) and with a nozzle ou... | 03/06/2007 |
| 7165744 | Turbine engine arrangements A fan turbine engine arrangement is provided in which a core engine is aligned such that an input of a nacelle is aligned with the upwash of a wing to which the arrangement is secured. The engine drives a fan such that bypass flows produced by the fan are guided by ... | 01/23/2007 |
| 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 |
| 7149611 | Virtual sensor mast A virtual sensor mast for a ground vehicle and a method for operating a ground vehicle using a virtual sensor mast are disclosed. The virtual sensor mast includes an unmanned airborne vehicle capable of lifting itself from the ground vehicle upon deployment therefro... | 12/12/2006 |
| 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 |
| 7134271 | Thrust vectoring aft FLADE engine An aft FLADE gas turbine engine including a fan section drivenly connected to a low pressure turbine section followed by an aft FLADE turbine having at least one row of aft FLADE fan blades radially extending across a FLADE duct circumscribing the aft FLADE turbine,... | 11/14/2006 |
| 7104499 | Rechargeable compressed air system and method for supplemental aircraft thrust A system for providing aircraft thrust includes a compressor, operable to take in a quantity of air, reduce the volume of the air to generate compressed air, and to deliver the compressed air to a tank. The tank is coupled to the compressor and is operable to receiv... | 09/12/2006 |
| 7104498 | Channel-wing system for thrust deflection and force/moment generation An aircraft comprising a Channel Wing having blown channel circulation control wings (CCW) for various functions. The blown channel CCW includes a channel that has a rounded or near-round trailing edge. The channel further has a trailing-edge slot that is adjacent t... | 09/12/2006 |
| 7093798 | Transformable airplane A transformable airplane may be reconfigured easily and rapidly to perform any one or a combination of tanking, transport, bombing, or command and control missions as desired for a tactical situation by installing or replacing mission-specific modules as desired. A ... | 08/22/2006 |
| 7063290 | Mounting system inserted between an aircraft engine and a rigid structure of an attachment strut fixed under a wing of this aircraft This invention relates to a mounting system (1) inserted between an aircraft engine and a rigid structure of an attachment strut, the system particularly comprising a thrust resistance device (20). The thrust resistance device (20) comprises two... | 06/20/2006 |
| 7040572 | Lighter-than-air aircraft with air cushion landing gear means A lighter-than-air aircraft (1) having a gas-filled hull (2) and a pair of spaced apart landing gear units (11, 12) on the underside of the hull arranged on opposite sides of a longitudinally extending central vertical plane of the hull. Each la... | 05/09/2006 |
| 7032859 | Counter rotating ducted fan having a permanent magnet drive A counter rotating ducted fan having a permanent magnet drive. comprising a ducted housing having an iron core stator and a pair of counter rotating propeller blades rotationally mounted on a propeller shaft positioned axially within the housing Each of the propelle... | 04/25/2006 |
| 6974106 | V/STOL biplane The present invention is a 2 passenger aircraft capable of vertical and conventional takeoffs and landings, called a jyrodyne. The jyrodyne comprises a central fuselage with biplane-type wings arranged in a negative stagger arrangement, a horizontal ducted fan inlet... | 12/13/2005 |
| 6954685 | Aircraft vehicular propulsion system monitoring device and method Methods and systems for monitoring rotating shaft shafts and couplings in an aircraft propulsion system is described. The measurement system/method provides for accurate and precise monitoring of a rotating shaft flexible coupling in a fixed wing aircraft vehicle pr... | 10/11/2005 |
| 6926232 | Variable cycle propulsion system with compressed air tapping for a supersonic airplane A variable cycle propulsion system for a supersonic airplane, the system comprising at least one engine having at least one compressor and capable of generating thrust for supersonic flight speeds, and at least one auxiliary propulsion assembly separate from said en... | 08/09/2005 |
| 6918244 | Vertical takeoff and landing aircraft propulsion systems This patent concerns VTOL propulsion systems that develop a forward flow of air through the air intake duct(s), by the methods of a internal duct system, reversing the rotation of the fan, or a variable pitch (thrust reversing) fan. ... | 07/19/2005 |
| 6892979 | VTOL personal aircraft Personal Aircraft capable of vertical take-off and landing (“VTOL”) which comprises: (a) a fuselage having a front end, a rear end and two lateral sides, the fuselage having a central longitudinal axis extending from the front ... | 05/17/2005 |
| 6883748 | 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,... | 04/26/2005 |
| 6885917 | Enhanced flight control systems and methods for a jet powered tri-mode aircraft A method of stabilizing a jet-powered tri-mode aircraft as the aircraft travels in a helicopter mode, a compound mode, and a fixed-wing mode is disclosed. The method includes receiving a plurality of velocity vector component values and velocity vector commands deri... | 04/26/2005 |
| 6843447 | Vertical take-off and landing aircraft A vertical take-off and landing aircraft includes a fuselage, a left wing, a right wing, at least one forward thruster, a horizontal stabilizer and a vertical stabilizer. The left and right wings extend from substantially a middle of the fuselage on left and right s... | 01/18/2005 |
| 6817570 | Ducted fan vehicles particularly useful as VTOL aircraft A vehicle, including a vehicle frame, a duct carried by the vehicle frame with the longitudinal axis of the duct perpendicular to the longitudinal axis of the vehicle frame, a propeller rotatably mounted within the duct about the longitudinal axis of the duct to for... | 11/16/2004 |
| 6732972 | High-lift, low-drag, stall-resistant airfoil Method and apparatuse embodiments of the present invention are diclosed wherein wing-rotor configurations provide aerodynamically high lift-low drag capabilities and improvements over the prior art including increasing effective stall angles. In addition, wing-rotor... | 05/11/2004 |