Class 244/62 - AIRCRAFT PROPULSION

Subclass of Class 244 - Aeronautics and astronautics
Definition: Devices and arrangements for propelling aircraft in flight.
No. of patents: 80
Last issue date: 03/11/2008

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Number	Title	Issue Date
5931414	Missile for combatting moving targets A missile, in particular for combatting moving targets, has several propulsion units arranged one after the other along the longitudinal axis of the missile. At least two propulsion units arranged one after the other can be operated simultaneously, and th...	08/03/1999
5857645	Crown balloon system A helium balloon transport system comprised of two separate helium balloon clusters (31) with underslung framing (2, 3, 4, 21) for use with two separate balloons (15) of comparable size, the entire system being interconnected (19) with moorings (16) to th...	01/12/1999
5855340	3X multi-engine jet configuration and method of operation A centerline mounted overbalanced multiple main jet engine configuration. The multiple jet engines are centerline mounted rather than parallel offset. While each jet engine is a "main" engine, capable of safely operating the aircraft in the event of a fai...	01/05/1999
5842667	Vertical takeoff and landing mass transit system and method The invention relates to a mass transit method including a docking terminal where passengers are loaded onto a craft with integral passenger pod. The craft lifts vertically from the docking terminal until it reaches an appropriate commuting altitude withi...	12/01/1998
5810284	Aircraft This disclosure provides a solar rechargeable aircraft that is inexpensive to produce, is steerable, and can remain airborne almost indefinitely. The preferred aircraft is a span-loaded flying wing, having no fuselage or rudder. Travelling at relatively s...	09/22/1998
5743489	Aircraft with two alternatingly operated propellers of different radius An aircraft has at least one drive motor coupled to first and second propellers for forward thrust of the aircraft. The first propeller is dimensioned for takeoff and landing conditions and for flight conditions below a predetermined first flight altitude...	04/28/1998
5685196	Inertial propulsion plus/device and engine Devices herein described utilize vehicles that are propelled, braked, and steered by means of a process called Inertial Propulsion Plus. This consists of a "power phase" to extend the weight(s) from the vehicle, alternated with a "null phase" to cancel ou...	11/11/1997
5678783	System and method for remediation of selected atmospheric conditions and system for high altitude telecommunications The system includes a platform assembly which includes a plurality of helium airships for support of an emitting electrode to produce a large amount of electrical charges, in the form of electrons, into the surrounding atmosphere. The electrons may be gen...	10/21/1997
5673872	Apparatus for energy transformation and conservation Apparatus with units having mechanical structures adapted to lengthen radius h (43') and shorten radius s (42') of their rotating mass. Said units can be combined in a radial arrangement. Said units are adapted to spin under the influence of centrifugal f...	10/07/1997
5520356	System for propelling and guiding a solid object with a beam of electromagnetic radiation A system for propelling a solid body having a transmit antenna for transmitting electromagnetic energy with a desired frequency and pattern. A solid body having a receiving antenna for receiving the transmitted energy and a fuel storage space, which recei...	05/28/1996
5503350	Microwave-powered aircraft An unmanned, remotely controlled microwave-powered aircraft for use as a stationary communications platform. The aircraft is generally a flying wing with a large, flat inner wing having a rectenna on the underside. Rectennas may also be provided on the un...	04/02/1996
5427330	Sphereroll Mechanical structures adapted to produce thrust. Said structures includes components and mass that rotate about two axes of rotation (20, 10) perpendicular to each other and in two-to-one relationship. In operation, the radius of the rotating mass lengthe...	06/27/1995
5388399	Rocket motor having unitary case, insulation and propellant An improved rocket motor and a method for its manufacture are characterized by the provision of a thermoplastic elastomer binder in the outer casing, the insulation layer, and the propellant. When the motor is heated to the melting point of the binder, th...	02/14/1995
5280864	Method for transiently altering the mass of objects to facilitate their transport or change their stationary apparent weights This invention is a method for producing transient fluctuations in the inertial masses of material objects employing an effect that is a consequence of relativistic theories of gravitation. An extension of this method wherein pulsed thrust is applied sych...	01/25/1994
5263666	Spacecraft with increased stationkeeping fuel load A spacecraft includes bipropellant and monopropellant engines or thrusters. The oxidizer-fuel mixture ratio of the bipropellant engine is not known exactly. The spacecraft is loaded with only sufficient oxidizer to achieve the velocity for transfer from a...	11/23/1993
5201832	Integrated aerospike engine and aerobrake for a spacecraft The purpose integrated aerospike rocket engine and space vehicle aerobrake is to provide for optimum installation and performance of these systems in a space vehicle. By integrating the aerospike engine into the middle of the aerobrake, the engine can be ...	04/13/1993
5154372	Torque multiplier for aircraft propeller The invention concerns aircraft propellers of the variable pitch type. Each propeller blade is carried by a trunnion which is rotatably mounted to a common ring. Each trunnion contains a reduction gear set which is driven by a radial shaft. The reduction ...	10/13/1992
5135184	Propellant utilization system The invention is a propellant utilization system for flight vehicles operating in both the subsonic and supersonic speed ranges. In particular, the invention uses steam and water produced in the system to replace hydrogen as a coolant and for power genera...	08/04/1992
5106035	Aircraft propulsion system using air liquefaction and storage An aircraft propulsion system includes a propeller for propelling the aircraft, an electric motor for driving the propeller, and an electrochemical fuel cell for receiving an oxidizer and providing propulsion power to the electric motor. An air liquefacti...	04/21/1992
5058826	Scramjet engine having a low pressure combustion cycle A method of operating a scramjet engine having an improved low pressure combustion cycle is disclosed. Apparatus for carrying out the method is also disclosed. The method includes the steps of providing supersonic compressed airflow to a combustor and sup...	10/22/1991
5052638	Electromagnetic ramjet An electromagnetic ramjet propulsion system is provided for accelerating high mass payloads through the upper atomsphere at orbital velocities. The propulsion system comprises a plurality of coplaner self-supporting superconducting dipole coils several hu...	10/01/1991
4955562	Microwave powered aircraft A microwave-powered aircraft has lifting surfaces for exerting lifting forces on the aircraft in response to the propulsion of the aircraft and a rectenna array for receiving and rectifying microwave energy transmitted to the aircraft from a location remo...	09/11/1990
4934632	Aerothermal ultra hypersonic aircraft An aircraft converting aerodynamic compression ram thermal stream energy into thrust power generation comprising: (a) an aerodynamic compression ram thermal stream generating multiple vane diffuser as the air-inlet to a pressure plenum; (b) a ram thermal-press...	06/19/1990
4907764	Infrared radiation powered lightweight aircraft A high altitude reconnaissance platform is implemented by an ultralight aircraft powered solely by long wave infrared cells mounted on the lower surfaces of the wings and the fuselage. The aircraft may be of the pusher, slow speed propeller style, with a ...	03/13/1990
4801111	System for propulsion and positioning of a transitory object A system for propulsion and positioning of a transitory object and having access to a DC electrical power source. The primary electrical component of the system is a coil for generating a magnetic field. The primary mechanical components of the system are...	01/31/1989
4786008	Nuclear powered drone An unmanned aircraft is equipped with a helium-cooled Brayton cycle nuclear reactor. Heated helium gas drives turbines which in turn rotate propellers to maintain the aircraft aloft for a protracted period of time. After the helium gas expands in the turb...	11/22/1988
4781018	Solar thermal propulsion unit This invention relates to a space vehicle 10 in which solar radiation is utilized to generate thrust by virtue of a solar thermal propulsion unit 12. The propulsion unit comprises basically reaction engines 14 including a DeLaval nozzle 22, heating chambe...	11/01/1988
4768738	Flexible solar skin in combination with an airplane A flexible solar skin which absorbs radiant solar energy to convert it into electricity, made possible through a conductive plastic, which conceals a conductive fiber, whereby the fiber directs generated electricity to a terminal in the form of a contact ...	09/06/1988
4709882	Electric propulsion system for aircraft An aircraft having a rotatively driven blade cooperating with an electrochemical power system for operating an electric drive system. The blade provides cooling heat transfer relative to the lithium/peroxide fuel system effecting desirable separation of t...	12/01/1987
4704732	Method of suspending a platform for communications and observation kept at high altitude by atmospheric molecular momentum transfer The instant invention comprises a method for freely suspending without any solid material support, a platform in an atmosphere by atmospheric-particle-momentum transfer having opposite surface portions which are structured to have different atmospher...	11/03/1987
4697761	High altitude reconnaissance platform A high altitude, ultra lightweight aircraft has broad area relatively flat wings, and is provided with solar cells on its upper wing surfaces, and long wavelength, infrared responsive cells on its lower wing and fuselage surfaces, to provide enough power ...	10/06/1987
4631971	Apparatus for developing a propulsion force A propulsion device comprises two symmetrical wheels mounted in the same plane for rotation about parallel axes at right angles to the plane and driven synchronously in opposite directions. Each wheel carries a pair of gearwheels which rotate around the a...	12/30/1986
4534525	Evacuated balloon for solar energy collection A large cylindrically-shaped balloon-like structure having hemispherical ends with fins utilized in conjunction with airflow thereacross based upon Bernoulli's principle for maneuvering and maintaining stability. The balloon is compartmentalized, contains...	08/13/1985
4403755	Method and apparatus for use in harnessing solar energy to provide initial acceleration and propulsion of devices The present invention relates to a method of providing thrust and added lift to a vehicle by accelerating fluid heated by solar energy. The present invention also relates to apparatus for carrying out the aforementioned method. Accordingly, the present in...	09/13/1983
4354348	Solar space vehicle This invention relates to space vehicle where solar energy is used to generate steam, which in turn, propels the vehicle in space. A copper boiler is provided and a novel solar radiation condensing means is used to focus the sunlight on said boiler. Steam...	10/19/1982
4253190	Communications system using a mirror kept in outer space by electromagnetic radiation pressure A method and system are described for transmitting electromagnetic radiation by using a communications mirror located between about 100 kilometers and about 200 kilometers above ground. The communications mirror is kept aloft above the atmosphere by the p...	02/24/1981
4087064	Orbital propulsion apparatus Orbital propulsion apparatus which has a rotor drivable by an electric motor and upon which is mounted a plurality of mass members for movement radially of the axis of the rotor, each mass member having a rocket motor mounted thereon which, when fired, mo...	05/02/1978
4007892	Aircraft flight method and apparatus for boosting an aircraft to a very high altitude and thereafter boosting the aircraft to a high rate of forward speed This invention relates to a method and apparatus whereby functioning airborne conventional aircraft and engine combinations may be assisted during flight in attaining above normal airspeeds and/or altitudes; for the purpose of improving their performance ...	02/15/1977
3955784	Mixed mode propulsion aerospace vehicles An aerospace vehicle incorporates within the same stage two different main propulsion systems that are operated in sequence. The first system involves the use of high density-impulse propellants, and the second system involves the use of lower density-imp...	05/11/1976

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Class 244/62 - AIRCRAFT PROPULSION