Did You Know...
...that it was melting ice cream that inspired the invention of the outboard motor? It was a lovely August day and Ole Evinrude was rowing his boat to his favorite island picnic spot. As he rowed, he watched his ice cream melt and wished he had a faster way to get to the island. At that moment the idea for the outboard motor was born!
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| Number | Title | Issue Date |
| 7201346 | Circular fixed wing VTOL aircraft A VTOL aircraft includes a wing, a propulsion system, and an air dam. The propulsion system is located in a central void formed in the wing to cause air flow from an outer perimeter of the wing over the wing and down through the void to generate lift. The air dam is... | 04/10/2007 |
| 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 |
| 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 |
| 7059562 | Vertical lift flying craft A disclosed vertical lift flying craft includes a lift unit that, during operation, develops a force including an upward component. A payload unit suspends from the lift unit. The payload unit suspends from the lift unit in such a way as to impart lateral stability ... | 06/13/2006 |
| 6969028 | Scarf nozzle for a jet engine and method of using the same A scarf nozzle for a jet engine supported within a nacelle. The scarf nozzle is at an aft end of the nacelle. The scarf nozzle includes a first trailing edge portion and a second trailing edge portion. The second trailing edge portion is disposed aft of the first tr... | 11/29/2005 |
| 6915983 | Pivoting power transmission unit with load transfer via the casing A pivoting power transmission unit is provided for driving a tiltable rotor of a convertible aircraft. The casing of the pivoting transmission unit comprises a lower casing, by which the casing is able to pivot on a support by two bearings each having a stationary p... | 07/12/2005 |
| 6883750 | Split torque gearbox with pivoted engine support A powerplant system for a vehicle such as a hybrid UAV includes a miniature gas turbine engine and a gearbox assembly. The engine is mounted to the gearbox assembly through a support structure which provides for pivotal movement of the engine relative thereto. The i... | 04/26/2005 |
| 6783096 | Vertical lift flying craft A disclosed vertical lift flying craft includes a lift unit that, during operation, develops a force including an upward component. A payload unit suspends from the lift unit. The payload unit suspends from the lift unit in such a way as to impart lateral stability ... | 08/31/2004 |
| 6708920 | Air vehicle Disclosed is an air vehicle (Z) comprising a vehicle body (1); hollow fan ducts (3A-3D) supported to and elongating through the vehicle body at least at its foreside and rear-side locations, respectively. Each fan duct communicates with air at t... | 03/23/2004 |
| 6695264 | Power lever tactile cueing system The present invention is a power lever tactile cueing system for providing tactile alerts to pilots as operational limits of an aircraft are approached. The cueing system generates a tactile cue comprising a variable dive rate and a variable friction forc... | 02/24/2004 |
| 6457672 | Propulsion nacelle alignment system for tilt-rotor aircraft The propulsion nacelles of a tilt-rotor type aircraft are adjustably positioned on the aircraft wings under control of a programmed actuator in response to error signals produced by change in angle of attack between the aircraft fuselage and the air strea... | 10/01/2002 |
| 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 The present invention relates to a system for the transformation of a traditional self-sustained horizontal take-off and landing aircraft into hybrid, integrated, self-sustained vertical take-off and landing and horizontal flight comprising, besides the p... | 01/22/2002 |
| 6260793 | Convertible aircraft with tilting rotors To provide aerodynamic continuity between the front part, pivoting with the rotor, and the stationary rear part of a pod housing an engine for driving the rotor, a curved cowl curved about the pivot axis extends the rear edge of the bottom cowling of the ... | 07/17/2001 |
| 6227481 | Method and apparatus for controlling force fights in a rotating shaft An improved tilting rotor aircraft, a control system for an elongated shaft, and a method of controlling an elongated shaft are provided. Sensors are utilized to detect an amount of twist on a flexible and elongated shaft. A controller receives the signal... | 05/08/2001 |
| 6161800 | Pivoting spanwise-flow redirector for tiltrotor aircraft A tiltrotor aircraft includes a spanwise-flow redirector having a pair of flow-redirection panels respectively mounted on the aircraft's mid-fuselage area for rotation about a panel pivot axis between a stowed position and a deployed position. In the stow... | 12/19/2000 |
| 5868351 | Rotor blade stowing system Rotor blade stowing system for stowing rotor blades that conserves storage space without adding significant weight or cost to the aircraft. The system includes a rotary actuator disposed on a blade grip member. A rotor blade is pivotally connected to the ... | 02/09/1999 |
| 5839691 | Vertical takeoff and landing aircraft A vertical takeoff and landing aircraft has a fuselage with a wing located above the fuselage at the rearward end and with a horizontal stabilizer located at the forward end. The propellers are mounted on booms separate from the wings and located just beh... | 11/24/1998 |
| 5823468 | Hybrid aircraft A hybrid aircraft is taught having VTOL, R-VTOL and S-STOL capabilities. The aircraft has a lifting body hull and four wing sections arranged in tandem which are pivotally moveable about their neutral axis. Each wing section has mounted thereon a pivotal ... | 10/20/1998 |
| 5758844 | Vertical/short take-off and landing (V/STOL) air vehicle capable of providing high speed horizontal flight The vehicle includes a fuselage; a plurality of lifting surfaces attached to the fuselage having control devices attached thereto; and, an articulated propulsion system attached to the fuselage. The propulsion system includes a duct assembly pivotally con... | 06/02/1998 |
| 5709357 | Tiltrotor helicopter The invention relates to a tiltrotor helicopter comprising a fuselage (1), a wing arrangement (2) and at least one power plant (5), and including two contrarotating, cyclically controllable rotors (7, 8) which are spaced from one another in the longitudin... | 01/20/1998 |
| 5622133 | Transport facility with dynamic air cushion The transport facility with dynamic air cushion, which has a hull, a wing with flaps, and a tail empennage. A power system turns propellers connected with a transmission. The propellers are installed in front of the wing. Pneumatic cylinders are located a... | 04/22/1997 |
| 5597137 | Vertical take-off and landing aircraft A vertical take-off and landing aircraft has an upwardly-open U-shaped channel extending from a front edge to a rear edge of each of two fixed wings and a thrust providing device, such as a propeller, mounted for tilting at the rear end of the channel. Th... | 01/28/1997 |
| 5405105 | Tilt wing VTOL aircraft A tilt wing VTOL aircraft has a fuselage with sides and an upper surface, an upper wing having a leading edge, a trailing edge, a chord, a lower surface and an upper surface. The wing is pivotally mounted on the fuselage for rotation from a cruise flight ... | 04/11/1995 |
| 5381985 | Wingtip mounted, counter-rotating proprotor for tiltwing aircraft A tiltwing aircraft, capable of in-flight conversion between a hover and forward cruise mode, employs a counter-rotating proprotor arrangement which permits a significantly increased cruise efficiency without sacrificing either the size of the conversion ... | 01/17/1995 |
| 5295641 | Propeller blade position controller System for reducing vibrations in the cabin of an aircraft driven by two or more propellers each having n blades (n being an integer equal or larger than 2) of which the relative phase angle can be adjusted, said system comprising synchrophase means for a... | 03/22/1994 |
| 5244167 | Lift augmentation system for aircraft A lift augmentation system for aircraft which comprises a plurality of propellers parallel to an aircraft wing and inset parallel to and at the trailing edge of the wing. The propellers function to both directly produce vertical lift in the manner of heli... | 09/14/1993 |
| 5141176 | Tilt wing VTOL aircraft A tilt wing VTOL aircraft has an upper wing with a leading edge, a trailing edge, an inboard area adjacent the fuselage, spaced opposite end tip areas and an upper surface. The wing is pivotally mounted on the fuselage for rotation from a cruise position ... | 08/25/1992 |
| 5054716 | Drive system for tiltrotor aircraft A drive system for a tiltrotor aircraft that provides for the operation of both proprotors by either engine or by both engines. The drive system provides an interconnecting drive shaft that extends between and connects the engines in such a manner that po... | 10/08/1991 |
| 4979698 | Rotor system for winged aircraft A rotor system for a rotor convertible fixed winged aircraft comprising a rotatable rotor shaft mounted on one of the wings of the aircraft, the shaft tiltable between a substantially vertical position and a substantially horizontal position, a rotor moun... | 12/25/1990 |
| 4856732 | Airborne vehicle with hydraulic drive and control An airborne craft with at least four propellers arranged in a front propeller pair and a rear propeller pair having substantial vertical or forwardly inclined axes has hydraulic motors which drive the propellers. A pumping device supplies two pairs of sep... | 08/15/1989 |
| 4546938 | Power unit for hang-gliders A power unit for a hang-glider (1) or the like comprises a combustion motor (2) connected to one end of a drive shaft (9) and a propeller (10) connected to the other end of the drive shaft. To enable the power unit to be used both with pulling or traction... | 10/15/1985 |
| 4537372 | VTOL Aircraft A fuselage is provided including front and rear ends, opposite side and top and bottom portions. A pair of laterally spaced front-to-rear extending elongated support structures are supported from opposite sides of the fuselage with the front and rear ends... | 08/27/1985 |
| 4272042 | Airship and associated apparatus and method for anchoring same An airship and a magnetically operated anchoring assembly adapted to provide rotation of the airship with respect to the ground, includes a gondola mounted to an envelope structure adapted to house lighter-than-air gas as well as any enclosures which may ... | 06/09/1981 |
