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"Flight by machines heavier than air is unpractical and insignificant, if not utterly impossible."
Simon Newcomb, astronomer ; Said in 1902, less than two years before the first flight at Kitty Hawk
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| Number | Title | Issue Date |
| 6668539 | Rotary heat engine A jet-propelled rotary engine comprises a stator and a rotor operatively coupled to the stator for rotation of the rotor relative to the stator about a rotor axis. The rotor comprises at least first and second jet assemblies wherein the first jet assembly... | 12/30/2003 |
| 6668540 | Gas turbine exhaust passage and damper system for same A gas turbine exhaust passage is realized which may suppress the radiation of strong ultra low frequency noise to the outside without amplifying the turbulence of an high speed exhaust gas flow rate or a pressure pulsation generated in a gas turbine. At l... | 12/30/2003 |
| 6668541 | Method and apparatus for spraying fuel within a gas turbine engine A fuel spraybar assembly for spraying fuel within a gas turbine engine. The spraybar assembly includes radial and lateral members that distribute fuel within the flowpath. In one embodiment two lateral members are located at the radially inward end of a r... | 12/30/2003 |
| 6668542 | Pulse detonation bypass engine propulsion pod A propulsion pod for a twin tube, rotary inlet valve, pulse detonation engine includes a shared, two-dimensional, low aspect ratio wedge nozzle in which each side of the wedge is transitioned into the discharge end of the detonation tubes of the engine. T... | 12/30/2003 |
| 6668543 | Rocket propulsion unit with separation of inner and outer casing and method of making same A rocket propulsion unit with an outer casing and an inner casing is described whereby the inner casing is arranged with space between the outer casing, and the inner casing forms a combustion chamber and has a contour adapted to the expulsion of propella... | 12/30/2003 |
| 6668544 | Methods for monitoring the catalytic activity of a catalytic converter Two methods are provided for monitoring the catalytic activity of a catalytic converter arranged in the exhaust gas conduit of a motor vehicle. According to one method, proceeding from a cold start, a temperature progression is determined by a temperature... | 12/30/2003 |
| 6668545 | Catalyst warm-up assessment method for a motor vehicle catalytic converter An improved method of assessing the catalyst warm-up rate of a motor vehicle catalytic converter is based on the response rates of fast warm-up exhaust gas sensors located in the exhaust gas upstream and downstream of the catalytic converter. The method e... | 12/30/2003 |
| 6668546 | Utilization of air-assisted direct injection, cylinder deactivation and camshaft phasing for improved catalytic converter light-off in internal combustion engines A vehicle engine control system controls an engine that includes a plurality of cylinders and that generates exhaust gas. An air-assisted direct injection fuel system supplies an air/fuel mixture to the cylinders. A catalytic converter reduces harmful emi... | 12/30/2003 |
| 6668547 | Method and apparatus for protecting the catalytic converter of an internal combustion engine from overheating A method and an apparatus for protecting the catalytic converter in the exhaust system of an internal combustion engine from overheating in the case of retarded ignition angles, in which a characteristic map (10) provides an engine-speed- and/or load-depe... | 12/30/2003 |
| 6668548 | Exhaust emission control device of internal combustion engine An exhaust control valve (24) is arranged in an exhaust pipe (22) of an internal combustion engine. At the time of engine startup and warmup operation, the exhaust control valve (24) is substantially fully closed, the amount of injection of main fuel is i... | 12/30/2003 |
| 6668549 | Hydrostatic vehicle driving system applicable to a working vehicle A hydrostatic vehicle driving system structured from an engine to a drive axle in a working vehicle. A hydraulic pump driven by the engine and a variable displacement hydraulic motor for driving the drive axle are fluidly connected with each other through... | 12/30/2003 |
| 6668550 | Method and apparatus for converting dissipated heat to work energy A method for converting low temperature dissipated heat to other useful energy and apparatus therefor. Heat energy is transferred to a shape memory alloy using natural conduction of the heat. The kinetic energy of the shape memory alloy resulting from cyc... | 12/30/2003 |
| 6668551 | Actuator having common bearing An actuator assembly for a vehicle brake system or clutch pack comprises a motor shaft having a first tapered cutout, and a ballscrew shaft having a second tapered cutout. The first and second tapered cutouts being adapted to mate.... | 12/30/2003 |
| 6668552 | Hydraulic brake booster A hydraulic brake booster has a housing with a stepped bore for retaining a cylindrical piston and a control bore for retaining a control valve. The cylindrical piston defines, with the stepped bore, an output chamber, a relief chamber and a power chamber... | 12/30/2003 |
| 6668553 | Ejector-based cooling system for turbochargers A turbocharger component cooling system employs an ejector using energizing gas from the turbocharger system to draw cooling fluid through a plenum around the component to be cooled into the secondary inlet of the ejector and dumping the combined energizi... | 12/30/2003 |
| 6668554 | Geothermal energy production with supercritical fluids There has been invented a method for producing geothermal energy using supercritical fluids for creation of the underground reservoir, production of the geothermal energy, and for heat transport. Underground reservoirs are created by pumping a supercritic... | 12/30/2003 |
| 6668555 | Solar receiver-based power generation system A solar receiver system (10) has a solar receiver (12) that receives sun rays (14) directed thereto. The receiver (12) has a heat pipe (26) having working fluid (38) therein. The first end (28) of heat pipe (26) and a second end (30) form a respective fir... | 12/30/2003 |
| 6668556 | Gas transfer energy recovery and effervescence prevention apparatus and method A gas transfer system and method for dissolving at least one gas into a liquid. The system includes a gas transfer vessel also known as a reactor. A liquid inlet feed is connected to the reactor for transferring the liquid into the reactor. A gas inlet is... | 12/30/2003 |
| 6668557 | Pilot nozzle of gas turbine combustor A pilot nozzle of a gas turbine combustor comprises a first structure, provided near a main nozzle of a combustor that injects fuel oil, having a flow channel for a fuel gas and an outlet for the fuel gas. The first structure diffusion-injecting the fuel ... | 12/30/2003 |
| 6668559 | Fastening a CMC combustion chamber in a turbomachine using the dilution holes In a turbomachine comprising inner and outer annular shells of metal material containing, in a gas flow direction F: a fuel injection assembly; an annular combustion chamber of composite material having a plurality of air feed orifices in a primary zone a... | 12/30/2003 |
| 6668560 | Rotating magnet magnetic refrigerator A magnetic refrigeration apparatus has an annular container including a plurality of magnetic regenerator compartments containing magnetocaloric material, and a magnet mounted for rotation around the annular container, whereby the motion of the magnet pro... | 12/30/2003 |
| 6668561 | Pressure regulated structure A pressure regulated structure includes a first layer, a second layer, a non-metallic honeycomb assembly, and a vent. The honeycomb assembly is between the first layer and the second layer and includes a plurality of walls forming cells, at least some of ... | 12/30/2003 |
| 6668562 | System and method for cryogenic cooling using liquefied natural gas A system and method for cooling a material with liquefied natural gas where liquefied natural gas and the material to be cryogenically cooled are brought into direct or indirect contact and cooled material and a combination of liquefied natural gas and na... | 12/30/2003 |
| 6668563 | Air treatment system for airplanes The present invention is an air treatment system for airplanes. It includes: (a.) an environmental conditioning system located within an airplane to provide at least one of heating, cooling, and compressing air, and has ingress ductwork to remove air from... | 12/30/2003 |
| 6668564 | Refrigeration cycle A highly reliable refrigeration cycle having a residual refrigerant, which is designed that the refrigerating machine oil does not stagnate in the refrigeration cycle after flowing out from the compressor even if the refrigerating machine oil is weakly so... | 12/30/2003 |
| 6668565 | Rack-mounted equipment cooling A gas distribution unit for use in a rack, that holds rack-mounted equipment that produces heat during operation, includes a housing defining a cavity, an exhaust port in a top wall of the housing, and at least one intake port configured to provide fluid ... | 12/30/2003 |
| 6668566 | System and a method of automatic defrost for a refrigeration appliance A system and a method of automatic defrost for a refrigeration appliance, including a hermetic compressor driven by an electric motor (1); a control unit (2); a thermal switch means (10) having a first and a second turn on condition and a turn off conditi... | 12/30/2003 |
| 6668567 | Thermal storage apparatus and method for air conditioning system A thermal energy storage unit is provided in connection with an air conditioning or refrigeration condenser. Working fluid waste heat is stored in the thermal energy storage unit during at least a relatively hot part of the day. Heat stored in the thermal... | 12/30/2003 |
| 6668568 | Flexible sealed system and fan control algorithm In one aspect, the present invention relates to a refrigeration control system that is modular and contains an algorithm to control the energy and temperature performance of side-by-side, top mount, and bottom mount type refrigerators. The control algorit... | 12/30/2003 |
| 6668569 | Heat pump apparatus A heat pump apparatus, improved in the operational reliability of its compressor and maintaining its COP at a desired level, is disclosed. The basic refrigeration circuit of the apparatus consists of a first pipe extending from a compressor to a four-way ... | 12/30/2003 |
| 6668570 | Apparatus and method for controlling the temperature of an electronic device under test An apparatus for controlling the temperature of an electronic device under test includes a thermal head having a temperature controlled surface for making thermal contact with the electronic device. The thermal head defines a flow channel for passage of a... | 12/30/2003 |
| 6668571 | Refrigerant compressor driven by variable supply frequency motor A refrigerant compressor driven by an electric motor, whose supply frequency is selectively variable between a discrete number of values (f1, f2, fT) as a function of an input signal, uses control means integrated in the c... | 12/30/2003 |
| 6668572 | Air conditioner having hot/cold water producing device An air conditioner including a compressor compressing a refrigerant to produce a high temperature gaseous refrigerant, a hot water producing device producing hot water by performing a heat exchanging process whereby heat is transferred from the high tempe... | 12/30/2003 |
| 6668573 | Geothermal heat collector to collect heat for a load by accessing deep earth temperatures without drilling, trenching, or other excavation A geothermal heat collector for heat pumps and of the type having a heat conducting fin (18) which communicates at its conducting suface (18a) with the surface of the earth (14). A heat transfer fluid flows through the fin by way of a conduit (16) which c... | 12/30/2003 |
| 6668574 | Refrigeration manifold A manifold for charging a system which when in use cycles a refrigerant between liquid and gaseous states is disclosed. The manifold includes a housing defining a flow passage extending from an inlet to an outlet. Structure is within the housing to define... | 12/30/2003 |
| 6668575 | Quiet ice making apparatus An ice cube-making machine that is characterized by noiseless operation at the location where ice cubes are dispensed and be lightweight packages for ease of installation. The ice cube-making machine has an evaporator package, a separate compressor packag... | 12/30/2003 |
| 6668576 | Method and device for continuous production of ice-solution suspension A method of continuous production of ice-solution suspension wherein the solution being continuously fed (7) to the processing zone (6) is overcooled: then, the turbulization (14) is performed in the overcooled solution; as a result, ice microcrystalls ar... | 12/30/2003 |
| 6668577 | Insulated container An insulated container for the storage and transport of fresh food items to keep them at a desired temperature, preferably between 0 and 4° C., includes a case provided with an insulating material lining on all its inside faces. The container also includ... | 12/30/2003 |
| 6668578 | Glass chilling method and apparatus For bartending, in order to avoid batch chilling of beer glasses and the like in which the last glasses put into a refrigerator are the first pulled out and are thus not properly chilled, a last in, last out glass chilling system provides a supply of prop... | 12/30/2003 |
| 6668579 | Container with refillable core A doubled wall container is disclosed having a fill cap that allows a user to alternately add or remove a liquid from an interior volume formed between the walls of the container.... | 12/30/2003 |
