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7302792 Pulsed plasma thruster and method of making  
A pulsed plasma thruster (PPT) and a method of making the pulsed plasma thruster are disclosed. The PPT includes no moving parts and is able to achieve a small size. The PPT is also designed to...
7181320 Systems, methods and computer program products for continuous emissions monitoring on-line  
Systems, methods and computer program products provide secure access to real-time emissions data from one or more power generating plants via a web-based interface. The user provides log-in...
7118075 System and method for attitude control and station keeping  
A system and method for supplying thrust to a structure, such as a satellite or spacecraft, for the purposes of station keeping and attitude control of the structure in low-gravity (orbital) and...
7096660 Plasma impulse device  
A plasma impulse device/method has been developed to provide impulses that can be used for thrust. A field device produces electric and magnetic fields, which E×B drifts a charged portion in the...
7080504 Laser augmented turbojet propulsion system  
The invention is a turbojet propulsion system which includes a compressor section, a turbine section coupled by a shaft to the compressor section, a combustion section mounted between the...
7073319 Nuclear-fueled power generating system  
An apparatus for generating electricity that uses at least one jet-type engine fueled with fissile material. The nuclear fueled jet engine is affixed to a connecting member that projects from a...
7059111 Thruster apparatus and method  
A thruster for use with an external power supply. The thruster includes a propellant that exists in a non-gaseous state at standard temperature and pressure and has a melting point T m , a boiling...
7003941 Thruster device responsive to solar radiation and associated methods  
A thruster device and associated methods are provided. The thruster device comprises a frustoconical inner layer and a frustoconical outer layer that surrounds the inner layer such that the inner...
7002126 Projectile steering by plasma discharge  
A device and method for guiding or steering projectiles (self-propelled or non-self-propelled), or missiles, and for steering a supersonic projectile, or a missile, having a nose, generally in the...
6993898 Microwave heat-exchange thruster and method of operating the same  
A propulsion system is disclosed that uses microwaves originating from a ground-based or on-board source to provide energy for propulsion. The energy produces thrust by coupling into a propellant...
6971228 Propulsion device, in particular for a rocket  
The invention relates to a propulsion device comprising a gas ejection nozzle and an injection chamber for injecting at least one propellant fluid. According to the invention, the device has an...
6960888 Method of producing and accelerating an ion beam  
A method of producing and accelerating an ion beam comprising the steps of: providing a magnetic field with a cusp that opens in an outward direction along a centerline that passes through a vertex...
6946081 Desalination system  
The invention provides methods and an apparatus for more efficiently and economically producing purified water from sea water or some other salty or brackish water source. The efficiency is derived...
6892525 Micropump-based microthruster  
A thruster for providing thrust for spacecraft positioning, which has a propellant reservoir for storing propellant, a reaction chamber for discharging a vapor for providing thrust, a pump module...
6876714 Device for heating gas from a thin layer of nuclear fuel, and space engine incorporating such device  
A gas, e.g. hydrogen, at relatively low pressure is directly heated by the fission fragments (FF) emitted by a thin layer of fissile material, e.g. 242m Am, deposited on the inner wall of a...
6834492 Air breathing electrically powered hall effect thruster  
An air/atmosphere breathing electrically powered Hall effect thruster including a thruster duct having an inlet, an exit, and a discharge zone between the inlet and the exit for receiving air from...
6774532 Self-powered microthermionic converter  
A self-powered microthermionic converter having an internal thermal power source integrated into the microthermionic converter. These converters can have high energy-conversion efficiencies over a...
6769241 Description of methods to increase propellant throughput in a micro pulsed plasma thruster  
Propellant modules for Micro Pulsed Plasma Thrusters, and techniques for bundling propellant modules and for using a two-stage discharge process to increase MicroPPT propellant throughput, and...
6644014 Electric thruster and thrust augmenter  
An electric thruster and thrust augmenter is disclosed in which intaken or compressed atmospheric gas or reaction thruster exhaust is passed through a gap space between electrodes so that the...
6619028 Electric thruster made with surface treatments for improved thermal management  
An electric thruster has at least a portion of a surface of at least one of the component elements of its housing surface treated to increase the thermal transmission at the surface. The surface...
6609363 Iodine electric propulsion thrusters  
The invention provides an improved spacecraft thruster, either Hall effect or ion effect, using gaseous propellant converted from solid iodine. A heated tank contains iodine crystals, which tank...
6594984 Combined thrust and power generator for a satellite  
A combined generator device for use in a satellite capable of generating electrical power and thrust from an optical solar image. The combined generator includes a first receiver positioned to...
6574951 Solar thermal rocket  
A modular solar thermal rocket that receives and absorbs solar energy and then acts as a heat exchanger to provide propulsive thrust. Thermal energy storage modules receive and store solar energy...
6539703 Spacecraft component with microthruster actuation and operation thereof  
A spacecraft component ( 20 ) includes a plurality of parts, e.g., a first part ( 22 ) and a second part ( 23 ) connected to one another, at least the first part ( 22 ) being mounted for movement...
6530212 Laser plasma thruster  
A spacecraft thruster and propulsion method comprising a laser directed at an ablation target, wherein when the laser is operating, material ablates from the ablation target, thereby generating a...
6385963 Optical system for generating endothermic fuel for use in a propulsion producing engine  
The optical system includes an optical source capable of producing light having physical characteristics sufficient for optically driven chemical disassociation of a fuel; and, an optical delivery...
6367243 Atomic-based combined cycle propulsion system and method  
A method and system are provided for propelling an aerodynamic vehicle into space. The aerodynamic vehicle uses a nuclear-based thermal rocket (NTR) propulsion system capable of producing a...
6343464 Solar thermal rocket  
A thermal solar rocket that includes a solar energy receiver having two sections (a thermal energy storage section and a direct gain section), a solar concentrator, and a propulsion nozzle. In one...
6334302 Variable specific impulse magnetoplasma rocket engine  
An engine is disclosed, including a controllable output plasma generator, a controllable heater for selectably raising a temperature of the plasma connected to an outlet of the plasma generator,...
6311476 Integral propulsion and power radiant cavity receiver  
A solar thermal engine for propelling and powering a craft. The solar thermal engine includes a housing, a propellant annulus, a plurality of static power converters and an electrical energy...
6295804 Pulsed thruster system  
A thruster system includes a power supply and a pulse forming circuit coupled to the power supply. The pulse forming circuit includes a capacitor and first and second diodes. The positively-charged...
6293090 More efficient RF plasma electric thruster  
A radio frequency (RF) plasma thruster for use in electric propulsion for spacecraft. The thruster operates by heating plasma in a magnetic field, which then flows out along magnetic field lines,...
6290185 Solar thermal rocket  
A solar thermal rocket that includes a thermal energy storage section, a radiant inter-heater, a primary solar concentrator, and a propulsion nozzle. The primary solar concentrator is selectively...
6269629 Micro-pulsed plasma thruster having coaxial cable segment propellant modules  
A single energy storage capacitor is used to apply electrical energy to selected propellant modules, each module generating thrust in a desired direction by the high voltage induced vaporization of...
6263665 Microthruster for heating a propellant, driving the vapors produced to a discharge section  
The invention provides a microthruster which includes a housing having a propellant container and a discharge section, means to heat the propellant to drive vapors toward the discharge section, a...
6216445 Micro pulsed plasma thruster and method of operating same  
A pulse plasma thruster (50) utilizes a vapor producing solid (54) and a micro-sized heater (52) to produce a high pressure vapor that is directed into an ignition chamber (58) and to a thrust...
6205769 Compact coupling for microwave-electro-thermal thruster  
Microwave-Electro-Thermal thrusters produce a high temperature rocket exhaust by sending microwaves into a resonant cavity where an excited mode then creates an electrodeless discharge that heats...
6182441 Drive circuit for electric propulsion thruster  
In drive circuitry for powering an arc jet or ion engine aboard a spacecraft carrying solar panels, a start-up circuit interconnects an array of series-parallel connected solar panels to establish...
6173565 Three axis pulsed plasma thruster with angled cathode and anode strip lines  
A spacecraft attitude and altitude control system utilizes sets of three pulsed plasma thrusters connected to a single controller. The single controller controls the operation of each thruster in...
6158209 Device for concentrating ion beams for hydromagnetic propulsion means and hydromagnetic propulsion means equipped with same  
The ion beam concentration apparatus for a plasma thruster having closed electron drift comprises: a) an essentially frustoconical flared magnetic pole piece (63) open at both ends and designed...
6153976 Pulsed plasma thruster with electric switch enabling use of a solid electrically conductive propellant  
An energy storage capacitor after being charged, is discharged across an electrically conductive solid propellant by means of a movable electrode contacting the propellant, and the resulting direct...
6131385 Integrated pulsed propulsion system for microsatellite  
A propulsion system and, in particular, a microthruster for a microsatellite. The microthruster may be formed as a resistojet type thruster formed with a chamber, closed by a diaphragm which acts...
6065284 Refractory heat transfer module  
An Integrated Solar Upper Stage receiver is shown for efficiently transferring heat from concentrated solar flux to an interior surface of an annular structure having a plurality of parallel...
6000223 Method and apparatus for production of heat and/or magnetic field through photon or positron infusion  
A method and device for producing heat and magnetic field through photon or particle infusion. The device includes a sealed cylinder including a side wall having a mirrored inner side and a recess...
5956938 Microwave electro-thermal thruster and fuel therefor  
The present invention comprises a compact coupling for microwave-electro-thermal thrusters which use water-based fuels and microwave isolators.
5934068 Method and apparatus for pressure pulse arcjet starting  
The invention disclosed is directed to a method and apparatus for an arcjet starter. The invention discloses a method of moving an arc from the subsonic region of the thruster to the supersonic...
5924278 Pulsed plasma thruster having an electrically insulating nozzle and utilizing propellant bars  
A thruster includes a body having a cavity with a discharge end, an apparatus for generating an electric arc having a current path through the cavity between first and second locations, and a...
5901551 Converging constrictor for an electrothermal arcjet thruster  
There is provided an anode for an electrothermal arcjet thruster. A conduit running through the anode body has a converging upstream portion and a diverging downstream portion connected by a...
5873239 Nuclear rocket engine incorporating a heat exchange  
A heat exchanger includes a block having a first group of passages arranged in a generally circular pattern, a second group of passages spaced radially outward from the first group of passages and...
5819526 Low power arcjet propellant feed system  
A lower power arcjet propellant feed system for delivering propellant to a low power arcjet. The low power arcjet propellant feed system includes a liquid propellant storage chamber for storing a...
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