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| Number | Title | Issue Date |
| 7618237 | Wind driven power system A wind driven power system employing multiple arms adapted to rotate about a central structure, each arm having a series of panels pivotally connected thereto and adapted to open and close as the system rotates to perpetuate the rotational movement and to produce en... | 11/17/2009 |
| 7377749 | Device for balancing a rotating part, in particular a turbojet rotor A device for balancing a rotating part, in particular a turbine rotor in a turbomachine such as a turbojet or the like, the device comprising at least one balance weight comprising engagement means for engaging it on an annular flange of the part, and locking means ... | 05/27/2008 |
| 7353603 | Method for mounting rotor blades to a rotor hub of a wind power installation A method of mounting rotor blades to a rotor hub which is connected to a pod of a wind power installation, includes the following steps: rotating the rotor hub into a predetermined first position, fitting a rotor blade, rotating the rotor hub by means of the rotor b... | 04/08/2008 |
| 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 |
| 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 |
| 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 |
| 7309063 | Gas-filled spring for a vehicle, such as a motor cycle, and valve for such a gas-filled spring A gas-filled spring (1) operates using gas (13, 14) and may be intended for a motor cycle. The gas-filled spring comprises a cylinder (2) and a piston (4), said cylinder comprising a compression chamber and a return chamber (8, 9).... | 12/18/2007 |
| 7291936 | Submersible electrical power generating plant A self-supporting, submersible generating plant for producing electricity from ocean currents, consisting of two counter-rotating, rear-facing turbines with a plurality of rotor blades extending radially outward from two separate horizontal axis that convey the kine... | 11/06/2007 |
| 7258527 | Vertical axis wind engine The present invention is to provide a vertical axis wind engine comprising at least one arm each having its center rotatably coupled to a vertical axis mounted on a base on the ground, each pair of the upper and lower arms adapted to define an airfoil receiving spac... | 08/21/2007 |
| 7241105 | Watercraft with vertically collapsible vertical axis wind turbine and propeller flexible drive shaft A vertically collapsible vertical axis wind turbine may be used on land, or on a watercraft (e.g. a multihull such as a catamaran). The turbine may include a substantially vertical shaft; at least two vane supports mounted by the shaft; and at least two vertically c... | 07/10/2007 |
| 7230348 | Infuser augmented vertical wind turbine electrical generating system A wind turbine for generating electrical power having a vertical “Savonius rotor type” wind rotatable turbine with multiple fixed pitch blades and a rotatable wind inlet duct having an identical number of multiple infuser-shaped aerodynamic guides as the pitch b... | 06/12/2007 |
| 7207777 | Methods of handling wind turbine blades and mounting said blades on a wind turbine, system and gripping unit for handling a wind turbine blade The invention relates to methods of handling wind turbine blades and mounting said blades on a wind turbine, said method comprising the steps of lifting a wind turbine hub to the nacelle of wind turbine with a lifting system and mounting the hub on the nacelle. Furt... | 04/24/2007 |
| 7198008 | Device for the training of scent discriminating detector dogs The Scent-A-Wheel device consists of several different parts connected together to form a device that acts like a carousel. The device consists of a hub (ball bearing or axle design), arms attached to the hub (“spokes”), a two-piece, adjustable shaft to support ... | 04/03/2007 |
| 7108485 | Reduction in the noise produced by a rotor blade of a wind turbine Rotor blades for wind power installations are known in many different forms. In a wind power installation the rotors or the rotor blades thereof represent the main source of sound. For reasons relating to acceptance and noise prevention laws, the aim should/must be ... | 09/19/2006 |
| 7105941 | Framework composition windmill A framework composition windmill includes a cylindrical tower and a wind power dynamic component positioned at the top end of the tower. The wind power dynamic component includes a wind-driven rotor and an STS energy exchange coupling element which includes an annul... | 09/12/2006 |
| 7040858 | Wind power generator, windmill, and spindle and blade of the windmill A wind power generator has a windmill for rotating the generator. The windmill includes a main vertical shaft, a rotor, and a wind-receiving blade. The rotor, fixed horizontally at the upper end of the main vertical shaft, comprises a flywheel, and a plurality of wi... | 05/09/2006 |
| 7042113 | Hydroelectric generator A hydroelectric generator having a fixed axle, at least one transmission axle parallel to the fixed axle, and a transmission system configured to rotate the transmission axle about the fixed axle and to apply a force to at least one driven member of a device for gen... | 05/09/2006 |
| 6979170 | Vertical axis windmill and self-erecting structure therefor The present invention provides a structure comprising a blade attachment, a blade structure, an integrated driving shaft/generator for a wind system such as a vertical axis windmill, and a self erecting structure for such a wind system, together with an erecting met... | 12/27/2005 |
| 6952058 | Wind energy conversion system A wind energy conversion system includes upper and lower wind turbines having counter-rotating blade assemblies supported for rotation about a vertical rotation axis, with each blade assembly carrying a rotor for rotation past a stator to produce an electrical outpu... | 10/04/2005 |
| 6929450 | Turbine apparatus and method A turbine system (10) for capturing energy from a fluid stream includes a torque arm (12). At least a pair of, preferably symmetrical clam shell, turbine blades (14) with the upper (16) and lower (18) halves are oppositely connecte... | 08/16/2005 |
| 6926491 | Vertical axis wind turbine with controlled gybing A device for generating electricity in which wind blowing from any direction causes the rotation of sails around a vertical tower. As the sails rotate the sails moving toward the wind are automatically feathered, and the sails moving away from the direction of the w... | 08/09/2005 |
| 6913435 | Integrated vane for use in wind or water and process for producing same In an integrated vane 1 for use in wind or water, main blades 3 arranged around an axial shaft 2 of the vane and support blades 4 for joining the main blades to the axial shaft are integrally formed with light and high strength fiber mate... | 07/05/2005 |
| 6910873 | Self regulating rotor A machine that is a self regulating rotor with a set of cups or vanes that are pivotally attached about a central axis such that they form a closed three dimensional shape when closed, and when rotated into an open orientation form an S-shaped rotor, when viewed as ... | 06/28/2005 |
| 6872045 | Apparatus and method for fluid drive conversion A fluid drive conversion system having a plurality of flat foils rotatably connected to a vertical shaft such that the foils are generally vertical in position, pivot about a vertical axis, are a predefined distance, at least about one quarter of the width of a foil... | 03/29/2005 |
| 6840738 | Feathering turbine apparatus A feathering fluid-driven turbine comprises impellers, arranged around the turbine axis and affixed to axles disposed parallel to the axis of rotation of the turbine, and further comprises a vane, such as a wind vane, which points in the current direction of fluid f... | 01/11/2005 |
| 6666650 | Wind power facility with a verticle rotor The invention relates to a wind power facility with a vertical rotor for generating energy, wherein a three-blade rotor (5) operates according to the cross-flow principle. The outer admission surface construction (1) and the facility has the shape of a to... | 12/23/2003 |
| 6499939 | Water wheel The present invention 10 discloses a wheel-like member 30 consisting of a central circular body member 18 having a plurality of spokes 22 radiating from its outside perimeter that attach to the inside perimeter of an outer circular body member 24. On the ... | 12/31/2002 |
| 6394745 | Straight-bladed vertical axis wind turbine The present invention concerns a wind turbine device having two or more vertical blades as generally used to generate power that gives a self-regulating angular speed using a collective blade-pitch control system with common biasing springs indirectly con... | 05/28/2002 |
| 6379115 | Windmill and windmill control method A windmill includes a freely rotatable revolution shaft, a plurality of pairs of pivotal support rods provided at the revolution shaft, and wind receiving blades respectively and rotatably set between the pivotal support rods with wind receiving blade sha... | 04/30/2002 |
| 6213721 | Noise emission reduction A structure for eliminating or reducing noise emission from a structure which vibrates at two or more discrete frequencies is described. Vibration damping tiles are secured to the surface of the structure with each tile have a high density layer linked to... | 04/10/2001 |
| 6179563 | Wind-powered drive shaft A wind-powered drive shaft, the rotary force of which can be used for a variety of purposes, such as to drive a hydraulic pump, the crankshaft for a water pump, or an electrical generator. To a central shaft are attached two or more sets of arms extending... | 01/30/2001 |
| 6158953 | Wind turbine with variable position blades A wind turbine has an internal rotor carrying a plurality of turbine vanes in a circular path between an inlet opening and an exhaust opening. The inlet opening includes a stationary dividing vane that delivers one portion of the inlet airflow to a primar... | 12/12/2000 |
| 6113350 | Vertical-axle power machine A vertical-axle wind power machine comprises a vertical axle, a plurality of jointed radial arms, a plurality of counterbalanced oblique blades at the support points thereof, a friction-rewarding rotary speed multiplying transmission, and an automatic rot... | 09/05/2000 |
| 5855470 | Wind wheel with rotationally faced plates This invention accomplishes these and other objectives with a wind wheel (1) having at least one planetary gear wheel (10) affixed rigidly to a wind-wheel axle (2) from which gear trains for each of a plurality of wind-wheel plates (9) are rotated to maxi... | 01/05/1999 |
| 5808369 | Windtrap for power development A wind power generator comprises a shaft operatively mounted in a support frame for rotation about a substantially vertical axis. A wing arm is fixedly mounted on the shaft and extends radially outward therefrom. Finally, a windtrap assembly is disposed p... | 09/15/1998 |
| 5676524 | Vertical-axis wind turbine A turbine has an upright shaft defining and rotatable about a vertical main axis, a support plate fixed to the shaft, a plurality of upright vanes pivotal on the support plate about respective vane axes offset from and generally parallel to the main axis,... | 10/14/1997 |
| 5642983 | Sail system for wind turbines A sail system for wind turbines of the vertical shaft type is disclosed. The sail system has a vertical rotating shaft, a plurality of support arms radially extending from an upper portion of the rotating shaft, and a sail pivoted to the tip of each suppo... | 07/01/1997 |
| 5520505 | Wind amplified rotor platform (warp) An energy conversion device which comprises a stacked array of alternating yawable and fixed toroidal modules about a central core structure. The yawable toroids have typically four impact impellers mounted in their peripheral flow regions for the purpose... | 05/28/1996 |
| 5518367 | Cross-wind-axis wind turbine A mechanical device which converts the wind energy into rotational mechanical energy has a cross-wind-axis rotor structure, having multiple, orientable blades around its periphery, mounted parallel to the rotor axis. Each blade is interconnected with an o... | 05/21/1996 |
| 5471098 | Device for connecting flow energy of water into electrical energy A device is located in a body of flowing water and includes a bridge supporting an electrical generator and anchors for holding the bridge stationary with respect to water flowing past that bridge. The device includes a water wheel submerged in the water ... | 11/28/1995 |
