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| Number | Title | Issue Date |
| 7980825 | Savonius rotor blade construction particularly for a three bladed savonius rotor A Savonius vertical axis wind turbine rotor, that is effective yet relatively easy to manufacture, includes spokes, vanes, and fasteners. Each spoke has a hub having a central opening, three arcuate ribs extending radially outwardly from the hub with inner (concave)... | 07/19/2011 |
| 7513746 | Windmill blade shaping and mounting to enhance performance A method of mounting windmill blades their enhance performance is disclosed. The blades have a transverse cross-sectional shape having a predominately flat chord section and are mounted such that the chord section lies in a plane that is substantially at 90 degrees ... | 04/07/2009 |
| 7371135 | Vertical axis wind turbine rotor construction A Savonius vertical axis wind turbine (VAWT) rotor is easily and simply constructed while having enhanced functionality. The rotor includes a shaft that is vertical in use, a number (desirably at least four) of vane support hubs each having a number (desirably three... | 05/13/2008 |
| 7348685 | Method and apparatus for supplying fresh water and generating electricity by collected rainwater A method and apparatus includes supplying fresh water and generating electricity from collected rainwater. The method includes providing hollow buoyant members under the reservoir as support. The method also includes providing steel ropes, driving piles into the gro... | 03/25/2008 |
| 7114844 | Aeration apparatus and method The present invention provides an improved aeration impeller for use in a mixing assembly having an axis of rotation. The aeration impeller includes a hub and a first and second blades that are connected to the hub. Each blade has a first portion positioned at an an... | 10/03/2006 |
| 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 |
| 7025642 | Boat propeller A boat propeller includes a hub having a front, back, and an axis of revolution extending therebetween. A plurality of blades provide and extend from the hub between the front and back. Each blade includes a surface adjacent of the hub disposed at an oblique angle t... | 04/11/2006 |
| 6955461 | Tickler for slurry reactors and tanks The present invention is directed to a tickler impeller and agitation system for use in stirred slurry reactors and storage tanks. The tickler impeller when mounted on a shaft is effective for providing an inward and downward swirl in a slurry medium which directs s... | 10/18/2005 |
| 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 |
| 6827555 | Cooling fan with curved V-shaped impellers A cooling fan includes a rotatable hub and a plurality of generally V-shaped impellers that are angularly displaced from each other and that extend outwardly from the hub. Each of the impellers has first and second impeller halves that extend outwardly from the hub ... | 12/07/2004 |
| 6688849 | Impeller and propeller An improved impeller which facilitates greater linear movement of a media with less torque; and which accordingly, consumes less power. A blade portion of the impeller has a front media accelerating face and substantially varying slopes which increase fro... | 02/10/2004 |
| 6682302 | 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 connected to the torque arm (12)... | 01/27/2004 |
| 6247897 | Vane system An improved vane system comprising of two or more vanes being part of a spherical section related to a hub characterized in that an operative concave surface of the vane being part of the spherical section. An operative convex surface of the vane being pa... | 06/19/2001 |
| 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 |
| 6126391 | Fluid flow machine A fluid flow device is described. A rotor of the fluid flow device has one or more bubbles such as open-ended scoop cups in a rotor disc. The rotor is located in a shroud. In the case of a compressor, the rotor is driven by power and upon rotation, scoopi... | 10/03/2000 |
| 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 |
| 5655943 | Paddle wheel for moving stream in a water activity toy A water activity toy with a channel for a stream of water which floats a vessel on the stream. A paddle wheel moves through the water to move the stream. The paddle wheel includes a plurality of blades all on axle stub portions at supports at opposite sid... | 08/12/1997 |
| 5553995 | Method of driving a turbine in rotation by means of a jet device A turbine device and a method of driving the turbine device are disclosed. The turbine device includes an admission channel, a turbine, and an injection channel. The turbine device may also include a regulator. The turbine is driven by injecting a primary... | 09/10/1996 |
| 5316443 | Reversible mixing impeller Liquid mixing impellers particularly designed for the chemical processing industry provide a generally axial flow when rotated in a first direction of rotation and provide a generally radial flow when rotated in the opposite direction of rotation. The bla... | 05/31/1994 |
| 5246289 | Agitator having streamlined blades for reduced cavitation An agitator assembly for use in effecting dispersion of a fluid such as a gas in a liquid comprises a rotor having a rotatably driven shaft 18 mounting a series of scoop-shaped blades 20 which are oriented with the mouths 21 of the scoops presented in the... | 09/21/1993 |
| 5211613 | Exercising machine with improved anti-drafting energy absorbing fanwheel Exercising machine having a vaned fanwheel rotatably mounted on a frame in open air and arranged to absorb energy by rotating the vane blades against ambient air. The fanwheel comprises a hub with a plurality of air vanes which are movable in an orbit aro... | 05/18/1993 |
| 5198156 | Agitators The turbine agitator assembly including a reservoir for liquid, a rotor mounted in the reservoir and with a plurality of radially extending blades, and sparger means for introducing a fluid into liquid in the reservoir. The fluid sparger means and the rot... | 03/30/1993 |
| 4779990 | Impeller apparatus An impeller apparatus for dispersing a gas into a liquid in a vessel includes a centrifugal flow turbine, the blades (621) of which are formed with a substantially stream-lined trailing surface terminated by a sharply pronounced spine (63). The blade is f... | 10/25/1988 |
| 4669164 | Method and apparatus for the manufacture of variable dimension fans Construction of impellers of various dimensions are manufactured from tubular hub stock and sheet-like blade stock by cutting a hub of particular length from said hub stock and blades of corresponding length from said blade stock and attaching said blades... | 06/02/1987 |
| 4646483 | Vanes for abrasive blasting wheels A blasting wheel is provided with vanes having a relatively concave face to project abrasive particles in a narrow pattern.... | 03/03/1987 |
| 4620833 | Fan rotor A fan rotor comprises a housing defining an interior air chamber and includes air inlet openings and an air outlet opening. A rotor blade is rotatably mounted within the chamber and includes a polygonal rotor plate disposed in parallel relation to the sid... | 11/04/1986 |
| 4560307 | Insulation blower A hopper cylindrical about a vertical axis has an agitator with blades rotating near the bottom of the hopper, not only to agitate insulation but also to move it through a hopper outlet opening into an airlock having a horizontal shaft and radially spaced... | 12/24/1985 |
| 4339923 | Scoop for removing fluid from rotating surface of two-phase reaction turbine An improved scoop is usable in combination with a wheel providing a rotating peripheral surface with an annular body of liquid supported on that surface and rotating with the wheel. The improvement comprises: (a) The scoop projects partially into the rotating ... | 07/20/1982 |
| 4307732 | Combine harvester A combine harvester with a threshing and a separating mechanism for threshing and separating crop material and a cleaning device for cleaning threshed and separated grain. The cleaning device comprises a cleaning fan structure with a fan housing and a fan... | 12/29/1981 |
| 4305698 | Radial-flow turbine wheel A radial flow turbine wheel comprises a disc, a spindle and blades, each blade having a curved surface configuration in symmetry with respect to a plane which is normal to the spindle and which passes through a mid portion of the axial length of the disc,... | 12/15/1981 |
| 4264276 | Water wheel for exerting flotation and propelling forces A water wheel for providing both flotation and propelling forces. The water wheel includes a disc made up of a pair of side walls spaced apart in their center area and joined at their peripheries to define a cavity. Paddle members are fixed to the outside... | 04/28/1981 |
| 3972195 | Two-phase engine A two-phase power source comprises a rotor; a nozzle having an outlet directed to discharge a two-phase jet for impingement on the rotor to rotate same, the nozzle having means to subdivide flow therein; and means to supply a heated first fluid in liquid ... | 08/03/1976 |
