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| Number | Title | Issue Date |
| 8123482 | Device for maintaining a hydraulic turbomachine A device for holding a hydraulic turbomachine in position, the turbomachine comprising a drive shaft along which are distributed turbines designed to rotate the drive shaft when they are immersed in a moving liquid, each turbine comprising drive blades distributed a... | 02/28/2012 |
| 7811060 | VAWT cluster and individual supporting arrangements One or more vertical axis wind turbines (VAWT), preferably of the Savonius type, are mounted in a relatively simple and inexpensive manner. For a single VAWT a center pole may be disposed within a hollow shaft of the VAWT with at least upper and lower bearings actin... | 10/12/2010 |
| 7293960 | Power generation assemblies, and apparatus for use therewith A floating power generation assembly comprises at least three floating units (900) floating on a body of water, and at least three anchors (916) secured to a solid surface beneath the body of water, each of the floating units (900) being provide... | 11/13/2007 |
| 7264199 | Unloaded lift offset rotor system for a helicopter A rotor system (12) for a helicopter (10) includes a rotating shaft (82). A gimbaled hub assembly (56) is coupled to the rotating shaft (82). Rotating blades (24) and non-rotating blades (33) are coupled to the gimbal... | 09/04/2007 |
| 7189051 | Wind power plant A wind power plant includes four main elements: a foundation (29), at least one supporting structure (21), a carrying construction (23) having a vertical axis (25) and being rotatable around the vertical axis, and at least one rotor (4... | 03/13/2007 |
| 7179046 | Fan array fan section in air-handling systems A fan array fan section in an air-handling system includes a plurality of fan units arranged in a fan array and positioned within an air-handling compartment. One preferred embodiment may include an array controller programmed to operate the plurality of fan units a... | 02/20/2007 |
| 7172386 | Wind and solar power plant with variable high speed rotor trains A wind and solar power plant, producing electrical energy at any scale, site, and level above the ground, and with almost no wind, comprises rotor trains, mounted on decks of a garage-like building, each rotor train having a plurality of rotors positioned between a ... | 02/06/2007 |
| 7144214 | Rotor supporting structure of windmill for power generation A windmill 10 includes a frame 11 and a rotor 12 provided rotatively around the vertical shaft center. The rotor includes bosses 23, 24 located above and below, plural transversal blades 25 extending radially from the bosses, longi... | 12/05/2006 |
| 7137775 | Fan array fan section in air-handling systems A fan array fan section in an air-handling system includes a plurality of fan units arranged in a fan array and positioned within an air-handling compartment. One preferred embodiment may include an array controller programmed to operate the plurality of fan units a... | 11/21/2006 |
| 7131812 | Sky turbine that is mounted on a city A sky turbine, having impeller blades with a plurality of panels that can telescope inward and outward. The pitch of the panels can be adjusted, and the pitch of each panel on a blade, passing from the innermost panel to the outermost panel, differs from the pitch o... | 11/07/2006 |
| 7121505 | Method of control for toy aircraft The invention described here offers a low-cost method of remote flight control suitable for use in toy airplanes and ornithopters (flapping-wing aircraft). To accomplish this, the aircraft is powered by a reversible electric motor. The propeller or flapping wing pro... | 10/17/2006 |
| 7047803 | Method for siting and operating an odor dispersing wind machine array A method for arranging and operating an array of wind machines to disperse area-wide odors, as generated by municipal waste treatment facilities and the like. The method includes a wind machine positioned to force air across the odor source. The wind machine is pref... | 05/23/2006 |
| 7044258 | Direct drive suspension A skid steer vehicle is supported on four gearboxes that function both as control arms and as speed reduction gearboxes. Each side of the vehicle's chassis has two gearboxes to which it is coupled. A hydraulic motor is fixed to each side of the chassis to drive the ... | 05/16/2006 |
| 6988868 | Propulsion linearizing mechanism A propulsion linearizing mechanism is provided for linearizing a fluid flow. The mechanism includes a frame having a cylindrical outer baffle which rotatably supports a plurality of propeller elements thereon. Each propeller element defines a respective sweep area a... | 01/24/2006 |
| 6962097 | Mechanical steering transmission unit The present invention concerns a mechanical steering transmission unit comprising an input drive shaft and two output driven shafts that can revolve in the same or opposite direction at the same speed. ... | 11/08/2005 |
| 6817831 | Engine-cooling fan assembly with overlapping fans An automotive engine-cooling fan assembly uses pairs of overlapping fans to improve flow uniformity through the heat exchanger cores and to maximize the amount of fan power that can be achieved with limited motor sizes. One fan of each pair has upstream supports and... | 11/16/2004 |
| 6749399 | Vertical array wind turbine A wind turbine with an array of rotors arranged at various heights. Each rotor is optimized for the height at which it is located. Optimization of each rotor could include selection of rated power, solidity, tip speed, blade twist, blade taper, or rotor diameter. Ea... | 06/15/2004 |
| 6652221 | Water current turbine sleeve mounting A flowing water actuatable turbine system, wherein the turbine system is mounted for operational co-operation with water current by means of an upstanding column/pile in such manner as to be axially displaceable length ways of the column/pile. The turbine... | 11/25/2003 |
| 6641367 | Wind energy conversion apparatus A wind energy conversion apparatus comprising a supporting structure including a number of spokes, which is rotatably journalled on a horizontal main shaft, wherein auxilliary rotors having an at least substantially circular plane of inflow are mounted on... | 11/04/2003 |
| 6011903 | Reduced-noise ducted flow hair dryer with multiple impellers and ambient air inlets An axial flow hair dryer comprises a generally circular main housing with a transitional portion that smoothly reduces the housing diameter to an outlet. A first fan stage in the main housing generates an axial air flow through the housing. An outer duct ... | 01/04/2000 |
| 5429480 | Wind-engine Improved wind-engine, comprising a frame (1) and several wind devices (2) mounted on different stages, one above the other on transversal parts (4) of this frame (1) with at least one separation wall (5, 6) mounted on the frame (1), between the wind devic... | 07/04/1995 |
| 5368453 | Electric fan An electric fan including a hood having a plurality of tubular members in each of which there is a cylindrical member, a plurality of bell-shaped members each mounted on each of said tubular members, and a plurality of protecting covers each mounted on an... | 11/29/1994 |
| 5317905 | Refrigeration system A refrigeration system where the refrigerant starts out as a liquid at ambient temperatures and pressures and is expanded to a very low pressure and temperature through the use of a special design ejector and pump assembly. The preferred design uses a new... | 06/07/1994 |
| 5269654 | Tail rotor assembly for helicopters In a preferred embodiment, a tail rotor assembly for a helicopter, which includes: a first rotor disposed on a first side of the distal end of a tail boom of the helicopter and rotatable in a first geometric plane; and a second rotor disposed on a second ... | 12/14/1993 |
| 5230604 | Multiple fan turret unit for use within a tower unit A self-contained fan turret unit for use with a tower air recirculating system includes a housing positionable for attachment to the tower system. The housing includes an extendable column assembly bearing a turret assembly to which are attached one or mo... | 07/27/1993 |
| 4469956 | Windmill support structure A windmill installation (10) includes a windmill (12) supported on a tower (18) that includes three legs (20, 22, and 24). The connections of the legs (20, 22, and 24) to their respective bases (36, 37, and 38) are provided by compliance members (30, 32, ... | 09/04/1984 |
