Class 244/5 - Airplanes, weight diminished by bouyant gas

Subclass of Class 244 - Aeronautics and astronautics
Definition: Aeronautical machines sustained by aerodynamic action on
No. of patents: 39
Last issue date: 05/15/2012

Number	Title	Issue Date
8177159	Emergency and rescue aircraft A rescue aircraft having a rigid body with gas-filled envelopes and propulsion devices located inside rotatable aerodynamic toroidal modules. A longitudinal through passage in the lower part of the aircraft connects a crew cabin, a cargo-and-passenger compartment, f...	05/15/2012
8113459	High-security aircraft An aircraft comprising an elongated framework provided with propelling means and direction-control planes. The framework is coupled to a pneumatic chamber suited to be filled with lighter-than-air gas and comprising two tubular branches joined to form a V-shaped pro...	02/14/2012
8033497	Hybrid thermal airship An airship comprises a shell, a gas storage system, an air storage system, a cargo storage system, a heating system, and a propulsion system. The shell encompasses a volume. The gas storage system is located within the volume, wherein the gas storage system is capab...	10/11/2011
7341225	Aircraft wing and aeroengine arrangement for attenuating engine noise An aircraft comprising an aeroengine and a noise reflective surface, the aeroengine capable of generating a hot exhaust jet and noise characterized in that the reflective surface is profiled to reflect noise from the aeroengine into the hot exhaust jet thereby atten...	03/11/2008
7341224	Miniature expendable surveillance balloon system A miniature surveillance balloon system is described that can be used in military and public safety situations for real-time observations. They are as small as feasibly possible, low-cost and expendable, and typically are deployed in clusters. Balloons may act indiv...	03/11/2008
7341223	Hybrid unmanned vehicle for high altitude operations A hybrid aerial vehicle is optimized, for example, and not by way of limitation, to operate above 100,000 feet in altitude and provide persistent and maneuverable flight while carrying a wide array of communications and sensing payloads. The hybrid vehicle may use t...	03/11/2008
7273195	Vertical lift craft A vertical lift craft includes a vertical lift craft, a powered rotor system including two counter-rotating lift rotors rotatably mounted to the body and a cage fixed to the body and extending about the powered rotor system, the cage including flexible rods extendin...	09/25/2007
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
7263939	Simplified elevated sailing apparatus An elevated sailing apparatus that extracts traction power from the wind. It operates without the heeling moment (typical of conventional sailboats), which constrains the design and limits the power that can be used. A wing or sail is attached beneath a streamlined ...	09/04/2007
7219854	Cycloidal hybrid advanced surface effects vehicle A “wing in ground effect” aerial vehicle includes a wing mounted on a fuselage, and two cycloidal propulsion units for providing lift, thrust and longitudinal control. Additional lift is provided by a lighter-than-air gas such as helium contained in the fuselage...	05/22/2007
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
7185848	Mass transfer system for stabilizing an airship and other vehicles subject to pitch and roll moments The invention relates to a mechanism to control the pitch and/or roll and/or center of gravity of a vehicle. The first embodiment is a track-based mass transfer system in which pathways are positioned along or radially terminate at a central horizontal plane of the ...	03/06/2007
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
7137592	High-aspect ratio hybrid airship In one aspect, a hybrid airship including an outer shell, a plurality of helium filled gas envelopes, and an all-electric propulsion system can have a high-aspect ratio wing shape. In some embodiments, the hybrid airship may be launched using buoyancy lift alone and...	11/21/2006
7108229	Arrangement and method for the generation of water on board an aircraft An arrangement and a method are proposed for the generation of water on board an aircraft with the use of one or more fuel cells, whereby low-temperature fuel cells are provided as fuel cells. It is proposed that several single-cell or few-cell fuel cells may...	09/19/2006
7073749	High altitude reconnaissance vehicle An airship deployment system comprises an airship of unique shape having laminar flow over this shape to enable low power propulsion, capable remote control, comprising an inflatable body; a propeller assembly for station keeping and repositioning said airship and c...	07/11/2006
7036768	Multi-purpose airship A multi-purpose airship usable for multi-purposes with less maintenance cost is provided. The multi-purpose airship comprises an operator cabin (1) to which a work device of agricultural chemical scattering device (10) or the like is fittable, a rotor ...	05/02/2006
6982655	Method and indicator for displaying information showing the airspeed tolerance margins for an aircraft Method and indicator for displaying information showing the airspeed tolerance margins for an aircraft. The indicator comprises a central processing unit which selects, from a plurality of longitudinal scales, the longitudinal scale representative of the curr...	01/03/2006
6892981	Stealthy duffel bag airplane The Duffel Bag Airplane is an inflatable flying wing unmanned airborne vehicle (UAV). The fuselage will house everything but the wings. The wing can be rolled up around the fuselage into a small package when deflated for easy transportation, such as by being carried...	05/17/2005
6860449	Hybrid flying wing An aircraft has a flying wing and two wingtip hulls installed on the wingtips of the flying wing. Both of the wingtip hulls contain lighter-than-air gas to generate static lift. These wingtip hulls not only contribute to lift-generating but also help the aircraft ac...	03/01/2005
6848647	METHODS OF BUOYANT AND/OR SEMI-BUOYANT (BASB) VEHICLES UTILIZING BASB IN CONJUNCTION WITH PRESSURIZED FLUID STREAM JET (PJET) AND VARIOUSLY SHAPED BODIES, WINGS, OUTRIGGERS, AND PROPULSION/REPULSION CONFIGURATIONS A method wherein a vehicle is capable of movement on or over land, and/or on, over, or under water. Various body, wing, tail, and/or outrigger shapes facilitate movement and develop lift. Buoyancy or semi-buoyancy is developed utilizing various chambers to contain c...	02/01/2005
6565037	Hybrid aircraft and methods of flying An aircraft includes an aircraft body that retains gas that is lighter than air and rotates about a vertical axis, and a cargo carrier attached to the body so that the carrier does not rotate with the body. The aircraft includes one or more propulsion dev...	05/20/2003
6196498	Semi-buoyant vehicle with aerodynamic lift capability The invention is a non-ridged, semi-buoyant vehicle. In detail, the invention includes a pressure stabilized gasbag having front and rear ends and an aerodynamic shape capable of producing lift, and longitudinal, vertical and horizontal axis, the tail end...	03/06/2001
6164589	Centerline landing gear for aerocraft A partially buoyant aircraft capable of transporting very large cargo payloads comprises a lifting body with an exterior airfoil configuration that includes internal structural support members for an exterior skin, the skin defining an internal volume for...	12/26/2000
6016991	Evacuated rotating envelope aircraft An aircraft utilizes a buoyant evacuated rotating envelope to provide at least a portion of the lift required. The rotating envelope may be in the form of a disk, cylinder or other suitable shape. In one embodiment, an evacuated rotating envelope in the f...	01/25/2000
5683060	Air vehicle An air vehicle that includes a body lower portion, a body intermediate portion, body lower portion, a solar panel, elevating apparatus, gimbling apparatus, and inflatable landing gear. The body lower portion has a body lower portion outer surface and cont...	11/04/1997
5527000	Duplex complementary carrier A duplex complementary carrier includes a flight vehicle floating above the ground, a control system moving on the ground for controlling movement of the flight vehicle, and a connecting system connecting between the control system and the flight vehicle....	06/18/1996
5518205	High altitude, long duration surveillance system A novel, high-altitude, solar powered aircraft, capable of staying aloft at high altitudes for many months or even years to conduct around the clock surveillance and/or reconnaisance, includes a forward wing with solar energy capturing cells, a rear wing,...	05/21/1996
5425515	Aircraft The object of the invention is to provide an aircraft which is capable of being enhanced in speed and preventing a crash even when a propeller does not operate to provide thrust to the aircraft. A wing which is an envelope made of a flexible material is c...	06/20/1995
5351911	Vertical takeoff and landing (VTOL) flying disc A flying disc capable of vertical takeoff, hovering, or powered horizontal flight. The aircraft configuration comprises a circular disc-like airfoil-shaped wing structure having a convex upper surface and a concave lower surface with a leading edge and a ...	10/04/1994
5104060	Hot gas device A closed-system hot gas device for flotation in the atmosphere having a rigid cap and flexible sides with an interior gas-heating element....	04/14/1992
5005783	Variable geometry airship A variable geometry lighter-than-air craft which can change from a buoyant airship to a heavier-than-air craft by changing shape. The craft has a flexible envelope filled with helium or other lifting gas. Releasing or tightening the adjusting lines change...	04/09/1991
4982915	Structure and method of producing foams having hydrogen-filled cells for use in airship/balloon envelopes A fire-resistant foam having hydrogen-filled cells for use in airship/balloon envelopes....	01/08/1991
4889297	Light aircraft for short-distance takeoff and landing A light aircraft for short distance takeoff and landing includes an airplane having a propeller provided on a rear pedestal thereof for producing vertical propulsion and an airship having a propeller provided on a rear pedestal thereof for producing verti...	12/26/1989
4799629	Flying object for collecting solar rays A flying object for collecting solar rays comprises a disk-shaped flying body equipped with floating and propelling means installed at the outer circumferential portions thereof. The flying object can detect its direction of flight and keep its position c...	01/24/1989
4375280	Free wing flyer A flying device capable of carrying man, which contains a wing, a fuselage, and means such as cables for attaching the wing to the fuselage so that the fuselage is suspended below the wing. The fuselage contains a propulsion unit and normally does not hav...	03/01/1983
4014483	Lighter-than-air craft A lighter-than-air craft having a discus shape. A passenger compartment is located at the top center of the craft and a payload pod at the bottom center beneath the passenger compartment. The pod connects to the passenger compartment by a passageway which...	03/29/1977
3993268	Ballooned, STOL aircraft A winged aircraft, adapted to takeoff and land with its longitudinal axis at a very steep angle of inclination, including: balloons that have a center of buoyancy forward of the center of gravity and tend to turn the craft into the said steep angle; a con...	11/23/1976
3970270	Low speed aircraft An aircraft capable of flying at very low velocities utilizing a wing envelope of an aerodynamic configuration having cells filled with a lighter-than-air gas. In one embodiment the buoyancy of the wing is slightly less than the total weight of the aircra...	07/20/1976

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Class 244/5 - Airplanes, weight diminished by bouyant gas