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Cloaking System Using Optoelectronically Controlled Camouflage
A Cloaking System designed to operate in the visible light spectrum, utilizes optoelectronics and/or photonic components to conceal an object within it.
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| Number | Title | Issue Date |
| 7365447 | Horizontal axis wind turbine Disclosed is a horizontal axis wind turbine of an downwind type having a rotor disposed downwind of a tower, comprising: a rotor having a hub and a blade; a nacelle to support the rotor rotatably through a main shaft connected to the hub; a cylindrical tower support... | 04/29/2008 |
| 7360310 | Method for changing removable bearing for a wind turbine generator A wind generator having removable change-out bearings includes a rotor and a stator, locking bolts configured to lock the rotor and stator, a removable bearing sub-assembly having at least one shrunk-on bearing installed, and removable mounting bolts configured to e... | 04/22/2008 |
| 7362004 | Wind turbine device A hybrid blade wind turbine device formed of at least a pair of straight outer airfoil blades, and a pair of inner helical wing blades, as supported for rotation within a safety protective cage structure, which wind turbine can be mounted in the vertical, horizontal... | 04/22/2008 |
| 7358624 | Wind wheel and electricity generator using same A wind-driven power source comprises a propeller-driven rotor structure and a stator structure carrying clusters of copper-wire wound ferromagnetic cores as voltage generators. The cores are arranged in pairs spaced apart by hard rubber rollers which engage the insi... | 04/15/2008 |
| 7358623 | Generator A wind powered generator that includes first and second current generators arranged to generate electric current in response to relative rotation between the two current generators. At least one rotary part having vanes is operatively connected to one of the first a... | 04/15/2008 |
| 7355294 | Method and system for wind turbine blade movement This document discusses, among other things, a wind turbine blade pitch system for moving the blades to control their pitch in the event of a power failure. The system includes at least one backup that has a non-electrical component that can pitch the blades in the ... | 04/08/2008 |
| 7355295 | Variable speed wind turbine having an exciter machine and a power converter not connected to the grid A variable speed wind turbine having a doubly fed induction generator (DFIG), includes an exciter machine mechanically coupled to the DFIG and a power converter placed between a rotor of the DFIG and the exciter machine. Thus, the power converter is not directly con... | 04/08/2008 |
| 7354245 | Wind power generation device A wind power generation device capable of improving power generation efficiency is provided. The wind power generation device according to the present invention comprises: a substantially cylindrical duct 1 having a side wall with a substantially wing section... | 04/08/2008 |
| 7355296 | Wind turbine generator system To shorten a startup interval to reach a synchronizing condition, a phase difference and an amplitude difference between the grid voltage and the stator voltage of one phase of a winding are obtained. The difference in amplitude is decreased prior to or in parallel ... | 04/08/2008 |
| 7352075 | Methods and apparatus for controlling rotational speed of a rotor A method for controlling a rotational speed of a rotor having at least one rotor blade, a rotor shaft, and an electrical generator coupled thereto. The method includes controlling a torque of the rotor shaft by controlling a torque of the electrical generator, alter... | 04/01/2008 |
| 7352074 | System for producing hydrogen making use of a stream of water A system for producing hydrogen from water, making use of a stream of water such as a gulf stream or tidal stream, includes a number of submerged modules, each having a turbine that can be driven by the stream of water. The turbine is coupled to a generator for gene... | 04/01/2008 |
| 7353083 | Vanadium redox battery energy storage and power generation system incorporating and optimizing diesel engine generators A power generation system includes a vanadium redox battery that interfaces with a control system to optimize performance and efficiency. The power generation system may include one or more wind turbine generators and one or more diesel fuel generators. The control ... | 04/01/2008 |
| 7352076 | Small wind turbine system A small wind-powered electricity generation system, providing regulated AC electric power from wind energy to a power system grid, has a wind turbine that produces less than 10 kW of peak electric power in a permanent magnet generator that produces generator power w... | 04/01/2008 |
| 7352073 | Ocean wave energy converter having an improved generator and ballast control The ocean wave energy converter uniquely includes a generator with a rotating inner rotor surrounded by a counter-rotating outer rotor for generating electricity. A reciprocating drive rod drives the inner rotor on the downstroke of the drive rod and the outer rotor... | 04/01/2008 |
| 7347294 | Power system for electrically powered land vehicle The power system for an electrically powered land vehicle extracts electrons from ambient air to generate adequate electrical power to operate the land vehicle electrical energy production and propulsion system. The extracted electrons generate enough electrical pow... | 03/25/2008 |
| 7347668 | Method and apparatus to determine the wind speed and direction experienced by a wind turbine An apparatus and a method used to determine the speed and direction of the wind experienced by a wind turbine are provided. The apparatus comprises at least one sensor fixed to the rotor of the wind turbine, an angular sensor to measure the angular position of the r... | 03/25/2008 |
| 7348683 | Rotor for a wind energy turbine A the rotor for a wind energy turbine includes a hub and at least one rotor blade connected to the hub. The rotor also includes comprises at least one sensor for sensing at least one physical value of the rotor, e.g. mechanical stress, and a power supply for supplyi... | 03/25/2008 |
| 7347660 | Cross-flow wind turbine Disclosed are various embodiments of cross-wind turbines that are capable of providing high efficiencies over a wide range of wind velocities. An airfoil stator causes wind to accelerate along its surface and creates a low pressure area on the leading face of the ro... | 03/25/2008 |
| 7345377 | Wind wheel and electricity generator using same A wind-driven power source comprises a propeller-driven rotor structure and a stator structure carrying clusters of copper-wire wound ferromagnetic cores as voltage generators. The cores are arranged in pairs spaced apart by hard rubber rollers which engage the insi... | 03/18/2008 |
| 7345375 | Wind power generation apparatus Disclosed relates to a wind power generation apparatus and, more particularly, to a multi-direction wind power generation apparatus, which can be easily, solidly and largely manufactured and also repaired readily, for enhancing the efficiency of power generation by ... | 03/18/2008 |
| 7345376 | Passively cooled direct drive wind turbine A wind turbine is provided that passively cools an electrical generator. The wind turbine includes a plurality of fins arranged peripherally around a generator house. Each of the fins being oriented at an angle greater than zero degrees to allow parallel flow of air... | 03/18/2008 |
| 7345374 | Decorative windmill with solar panel A decorative windmill having a solar energy system for powering an electrical subsystem is disclosed. The electrical subsystem may include lighting elements for illuminating the windmill and the area around the windmill in a decorative and functional manner. ... | 03/18/2008 |
| 7342323 | System and method for upwind speed based control of a wind turbine A method for controlling power output of a wind turbine generator in response to an anticipated change in wind speed is provided. The method includes sensing wind speed at a desired distance from the wind turbine generator in a direction of the wind. The method furt... | 03/11/2008 |
| 7340898 | Solar-thermal powered generator A solar-thermal powered generator has an absorber assembly which includes a gas permeable body of light absorbing material operative to absorb incident light and convert the absorbed light into heat. The gas permeable body of light absorbing material is supported in... | 03/11/2008 |
| 7342322 | Energy supply apparatus for a location having one or more consumers with said location being remote from power mains A power supply apparatus in the form of a compact system is provided in order to eliminate the disadvantages associated with known photovoltaic power supply apparatus for locations that are remote from power mains. To this end, an additional combustion generator ( | 03/11/2008 |
| 7337726 | Wind farm An offshore wind farm comprises a plurality of wind turbines. In order to provide such a wind farm with transport between separate wind turbines that can be effected more safely and with less dependence on weather, cable connection is provided between the wind turbi... | 03/04/2008 |
| 7339355 | Generator with utility fault ride-through capability A wind powered turbine with low voltage ride-through capability. An inverter is connected to the output of a turbine generator. The generator output is conditioned by the inverter resulting in an output voltage and current at a frequency and phase angle appropriate ... | 03/04/2008 |
| 7339286 | Portable wind power generator A portable wind power generator capable of being stored in a folded manner includes a storage case and a power-generating system. The power-generating system is disposed in the storage case. The storage case includes a case body and a plurality of covers. The case b... | 03/04/2008 |
| 7335000 | Systems and methods for tethered wind turbines According to some embodiments, systems and methods for tethered wind turbines may be provided. In some embodiments, a system may comprise an airborne body extending horizontally along an axis between a first point and a second point, wherein the body is at least par... | 02/26/2008 |
| 7335128 | Drive assembly for wind turbines A drive assembly for a wind turbine includes a rotor hub, a supporting structure, a planetary gear transmission unit having sun, planet and ring gears and a planet carrier. The ring gear is non-rotatably secured to the supporting structure. A main bearing rotatably ... | 02/26/2008 |
| 7334994 | Automatic self-feathering and resetting sail restraint for migler's vertical axis wind turbine An improved sail restraint for Migler's vertical axis wind turbine in which excessive wind speed automatically causes the sails to be feathered, protecting them from wind damage, and, when the wind speed is reduced to an allowable level, the improved sail restraint ... | 02/26/2008 |
| 7331752 | Method of conversion of continuous medium flow energy and device for conversion of continuous medium flow energy A device and method for conversion of the energy of medium flows are provided. The proposed device and method ensure suppression of the vortex streams in the flow on the leg of its motion along the radially converging trajectories and concentration of the flow energ... | 02/19/2008 |
| 7332827 | Method for controlling a power-grid connected wind turbine generator during grid faults and apparatus for implementing said method The present invention relates to a method and an apparatus for controlling a power-grid connected wind turbine generator during grid faults. During grid faults, the stator windings of the wind turbine generator are disconnected from the power grid and impedances for... | 02/19/2008 |
| 7329965 | Aerodynamic-hybrid vertical-axis wind turbine An aerodynamic-hybrid, vertical-axis wind turbine which includes a rotor airfoil and stator blade combination which maximizes energy production by increasing wind velocity and pressure while eliminating back pressure and improving the laminar flow of wind both aroun... | 02/12/2008 |
| 7325543 | Covering material for solar thermal power generating system and solar thermal power generating system formed by spreading the covering material A covering material for solar thermal power generation system, characterized in that it is made of a film which has a tensile yield strength of at least 10 N/mm2 according to JIS K7127, a solar radiation transmittance of at least 85% according to JIS R310... | 02/05/2008 |
| 7323791 | Louvered horizontal wind turbine A wind turbine, including: a rotatable frame; a plurality of airfoils extending in a direction parallel to an axis of rotation of the rotatable frame; and an enclosure surrounding the rotatable frame, wherein the enclosure comprises a plurality of moveable members c... | 01/29/2008 |
| 7323792 | Wind turbine A wind turbine including an open hub, foldable blades attached to the rim of the hub, and a mechanism for tilting the turbine is disclosed. ... | 01/29/2008 |
| 7321173 | Wind powered streetlight A streetlight for illuminating a portion of an adjacent roadway. The streetlight includes three vertical support members with a rotatable axle mounted intermediate thereto. Superposed on the vertical support members is a light assembly. A plurality of wind receptacl... | 01/22/2008 |
| 7319279 | Wind-driven electrical power generating apparatus A power generating apparatus comprises an electrical power generating device, a vane-carrying structure and a mounting flange. The electrical power generating device includes a body and a power input shaft extending from within the body. The body is generally cylind... | 01/15/2008 |
| 7317260 | Wind flow estimation and tracking using tower dynamics A turbine control system for a variable speed electrical generator in a wind turbine mounted atop a support tower. The wind turbine converts wind energy into a driving torque applied to the generator. The control system includes a turbine support tower position sens... | 01/08/2008 |
