Class 416/197A - Air and water motors (natural fluid current)

Subclass of Class 416 - Fluid reaction surfaces (i.e., impellers)
No. of patents: 161
Last issue date: 04/05/2011

Number	Title	Issue Date
7918650	System for pressurizing fluid A system for providing low cost fluid pressurization without consumption of limited natural resources, pollution, or greenhouse gas emission, and is independent of wind conditions. Additionally, the system of the present invention includes a venturi-like collar posi...	04/05/2011
7360995	Vertical axis windmill A vertical axis windmill in which a support frame is provided as a wind power dam to form a plurality of shaft-installation sections, and in which a plurality of vertically long blades each of which has a tilted part at the upper and lower ends respectively are disp...	04/22/2008
7357872	Lift station and method A lift station for raising the level of an open channel flow of liquid by sweeping blades mounted to a rotated wheel into the liquid flow after entering a housing to sweep the liquid up and back along a housing interior wall and over a weir edge located well above t...	04/15/2008
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
7314346	Three bladed Savonius rotor A Savonius three bladed vertical axis wind turbine rotor has operational characteristics superior to those of conventional three bladed rotors. The blades have high curvature and a high skew factor, for example a curvature of greater than 7:1 (e.g. 2:1-5:1), and a s...	01/01/2008
7309213	Wind sail receptor A wind sail receptor for turning in a wind or water flow to operate a power generator that includes from six to ten identical, equal spaced blades, that are formed from two flat sections of a stiff material and are arranged between a rear hub and spaced apart forwar...	12/18/2007
7287954	Omni directional baffled wind energy power converter apparatus and method A wind turbine apparatus, comprising an upright shaft defining an upright axis, at least two blades operatively connected to the shaft to rotate about the shaft axis as the blades are wind driven about the axis, the lowermost portion of each blade being offset, azim...	10/30/2007
7267530	Windmill apparatuses and methods of mounting blades to enhance their performance A windmill apparatus has multiple pairs of blades to enhance power output and lift performance. The apparatus has multiple double acting piston/cylinders actuated by the windmill, which includes several clutches that are used to engage and disengage the windmill fro...	09/11/2007
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
7189050	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...	03/13/2007
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
7134557	Lift station and method A lift station for raising the level of an open channel flow of liquid by sweeping blades mounted to a rotated wheel into the liquid flow after entering a housing to sweep the liquid up and back along a housing interior wall and over a weir edge located well above t...	11/14/2006
7126235	Wind power electric device and method A wind-power unit has a wind turbine has an electric generator connected to the wind turbine. The stator of the generator has a winding formed of a high-voltage cable having a core of conducting material, a first layer of semiconducting material surrounding the core...	10/24/2006
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
7090553	Paddle wheel propulsion system and improved paddle used therewith A paddle wheel propulsion system includes a paddle wheel mounted for rotation about its horizontal axis for propelling a vessel, and for unlimited rotation about a vertical axis perpendicular to its horizontal axis for steering the vessel. The paddle wheel is also s...	08/15/2006
7084523	Windmill for wind power generation A windmill for highly efficient wind power generation is provided by enabling one to efficiently rotate the windmill even in starting or at a low wind speed region by improving a blade of a vertical shaft type windmill of a lift type. In the windmill for wind power ...	08/01/2006
7056082	Four cycle wind implosion engine A wind energy machine has four rotor chambers formed by perpendicular walls. Each rotor chamber has an intake portion, a reversal portion, a parallel portion, and an exhaust portion. Air flow is reversed in each chamber for every 90 degrees of rotation, such that th...	06/06/2006
7040859	Wind turbine A wind turbine operable as either a vertical axis wind turbine or a horizontal axis wind turbine is disclosed. ...	05/09/2006
7008171	Modified Savonius rotor A novel modification of a Savonius rotor used as a wind turbine provides an exhaust channel in each vane. The vane of the modified Savonius rotor is formed into an “S” shape. The air that enters a given end of the vane exits that end through the new exhaust chan...	03/07/2006
6984899	Wind dam electric generator and method A vertical axis windmill is provided wherein the amount of wind directed to blades in the power producing part of rotation and the mechanical load of multiple generators is controlled by a feedback control to maintain a relatively constant rotational frequency of th...	01/10/2006
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
6966747	Wind turbine having airfoils for blocking and directing wind and rotors with or without a central gap A wind turbine device of increased efficiency is comprised of a set of fixed airfoils that direct wind into a rotor having a plurality of blades. The fixed airfoils may extend to the ground to increase the amount of wind directed into the rotor and may be manufactur...	11/22/2005
6948905	Horizontal wind generator A horizontal wind generator comprises a horizontal windmill drivingly coupled to an electrical generator. The windmill includes a vertical drive shaft mounted for rotation in a base, with a plurality of wind drive units being mounted in wind catching positions at sp...	09/27/2005
6935841	Fan assembly A fan assembly includes a vertical axis wind turbine (VAWT) which is coupled to an air extraction or air supply fan. The VAWT is located above and is coupled coaxially to the fan. The fan assembly also includes an auxiliary turbine to provide start-up torque to init...	08/30/2005
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
6890367	Dynamic sand drift barrier A dynamic sand drift barrier stops and accumulates sand, snow or other heavier-than-air particles suspended in moving air currents, to perform as a fence and adjust its position to maintain the operative portions above the top of the accumulated particles using ener...	05/10/2005
6428275	Helical wind rotor and a method for manufacturing the same Helical wind rotor, comprising at least two blades (1) which, as observed in cross section, are of substantially equivalent shape and curved, and are located parallel with the rotational axis (o) and so that the blades (1) are arranged most suitably at eq...	08/06/2002
6368063	Cavity turbine A cavity vertical turbine includes a rotatably driven electric generator or air compressor, a drive shaft operably connected to the electric generator or air compressor to cause rotation thereof, a first member having a cavity vertical surface and being c...	04/09/2002
6345957	Cavity vertical turbine A cavity vertical turbine includes a rotatably driven electric generator or air compressor, a drive shaft operably connected to the electric generator or air compressor to cause rotation thereof, a first member having a cavity vertical surface and being c...	02/12/2002
6283710	Vertical axis wind turbine rotor having self-fairing vanes A vertical axis wind turbine rotor having self-fairing vanes wherein the center of pressure on each vane is coplanar with the journal for the hub of the turbine rotor....	09/04/2001
6283711	Modified savonius rotor The rotor consists of two airfoils symmetrically disposed around an axis of rotation. Each airfoil consists of an outer vane having a leading edge and a trailing edge and an inner vane having a trailing edge and having a leading edge attached to the trail...	09/04/2001
6238185	Fan with low noise, high air flow and high wind pressure This invention relates to a fan. According to the rotational direction, the outermost point of the front side of the fan is leading to the innermost point of the front side such that the portion first contacting air is minimized and the noise of the fan i...	05/29/2001
6210113	Water wheel turbine for water power stations A waterwheel turbine for application in hydropower plants is provided. This turbine exploits primarily the head of the watercourse for energy recovery. The cells of the waterwheel turbine are each provided with a pair of mechanically linked flaps for cont...	04/03/2001
6072244	Wind power prime mover A wind power prime mover in which a windmill assembly (1) comprising semicylindrical wind receiving members (16) vertically erected on a plurality of equally spaced points on the circumference centering on a vertical rotary shaft (3) in such manner that s...	06/06/2000
5997252	Wind driven electrical power generating apparatus A wind driven electrical power generating apparatus includes an armature. The apparatus also includes a wing secured to the armature. The wing defines a pocket having a hub end and an outer end. The width of the pocket monotonically increases from the hub...	12/07/1999
5947678	Water wheel with cylindrical blades An improved liquid rotor device is provided having a cylindrically-shaped hub, which is supported by a horizontal shaft, and having several curved blades which are attached to the outer portions of the rotating hub. The horizontal shaft preferably rotates...	09/07/1999
5899664	Oscillating fluid flow motor An oscillating fluid flow motor and an in-stream fluid flow power system that converts the energy in the flowing fluid to mechanical energy through a vane that automatically sweeps back and forth across the flow. The oscillating fluid flow motor consists ...	05/04/1999
5800123	Bladed pump capstan An apparatus for tensioning a subsurface float line and the like during doyment of the line and thereafter includes a capstan rotatably mounted and located in a liquid medium, the capstan having a bore extending from one end of the capstan to the other e...	09/01/1998
5664418	Whirl-wind vertical axis wind and water turbine A vertical axis wind turbine is supported by a frame held in place by an encircling series of crescent-shaped tubular deflector vanes. The vanes widen towards the turbine core, concentrating the wind. The wind is trapped momentarily on entering the turbin...	09/09/1997

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Class 416/197A - Air and water motors (natural fluid current)