Did You Know...
...that in the early 1940s GE engineer James Wright was charged with a task of utmost importance to the war effort: develop a cheap substitute for rubber that could be used to produce tires, gas masks and a whole host of military gear. Wright tackled the task diligently -- and wound up inventing Silly Putty.
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| Number | Title | Issue Date |
| 7918648 | Windpower generator apparatus A windpower generator apparatus has a horizontal shaft, a first arm extending outwardly of the shaft, a second arm extending outwardly of the shaft in spaced relationship to the first arm, a third arm extending outwardly of the shaft in spaced radial relationship to... | 04/05/2011 |
| 7780416 | Blinking sail windmill Four wide frames are fixed to a vertical axis. The frames have horizontal bars ten centimeters apart. On each horizontal bar, a sheet of cloth twenty centimeters high and as wide as the frame is hung such that the sheets of cloth are all on the same side of the fram... | 08/24/2010 |
| 7762776 | Vortex shedding cyclical propeller A propeller having one or more blades eccentrically mounted to a shaft dynamically changes the blade pitch to produce free vortices in a fluid. For extracting energy from a moving fluid, the fluid flow acting on the blades rotates the propeller, while the pitch chan... | 07/27/2010 |
| 7686583 | Cyclical wave energy converter Systems and methods use cyclical propellers with dynamic blade angle control to extract power from waves. A control system for such implementations can adapt pitching schedules for the blades of the cyclical propellers for efficient energy extraction and/or to contr... | 03/30/2010 |
| 7591635 | Wind turbine Disclosed herein is a wind turbine. The wind turbine includes a support unit having a lower base block and a cylindrical protruding part. A rotary cylinder is rotatably supported by the protruding part. A rotating shaft extends from a center of the rotary cylinder t... | 09/22/2009 |
| 7377466 | Propulsion system for miniature vehicles A propulsion system for miniature vehicles, such as model airplanes, having multiple direct-current motors arranged radially about a central axis of the propulsion system that drive a propeller system. ... | 05/27/2008 |
| 7296974 | Wind energy turbine The invention relates to a wind turbine and to the installation of such a wind turbine, particularly offshore. When wind turbines are installed in the previously known manner, a tower of the wind turbine is firstly manufactured, said tower being a steel tower, a con... | 11/20/2007 |
| 7264202 | Tri-cycloidal airship An unmanned, lighter-than-air airship includes three omnidirectional thrust generating units. One unit is mounted at the fore-end of the airship to generate thrust in a plane that is perpendicular to the longitudinal axis of the airship. This unit controls pitch and... | 09/04/2007 |
| 7097646 | Collapsible acetabular reamer A method and apparatus for performing minimally invasive hip surgery to implant an acetabular shell into the acetabulum. A collapsible acetabular reamer is moveable between an expanded position and a collapsed position. In the expanded position, the reamer reams the... | 08/29/2006 |
| 7090164 | Method for producing a lift and a horizontal thrust A method of producing a lifting force and a horizontal force by aerodynamic surfaces includes the steps of moving aerodynamic surfaces along a circumference and providing their oscillations; rotating each of the aerodynamic surfaces synchronously with the movement a... | 08/15/2006 |
| 7066709 | Wind driven power generating system The present invention discloses a wind driven power generator. The wind driven power generating system comprises: a) an aerodynamic unit rotatably mounted at the top of a tower having a certain height; b) a plurality of rudders for aligning the aerodynamic unit with... | 06/27/2006 |
| 7014354 | Power bowl lift, motor mount and tensioner for mixing machine A mixing machine includes a power bowl lift mechanism that operates independent of a drive motor for mixing operations, and may be formed by a linear actuator. A pivoting motor mount assembly can be used in conjunction with a portable tensioning tool for tensioning ... | 03/21/2006 |
| 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 |
| 6824348 | Wind rotor operable in slow wind speeds A wind rotor comprises a base, a rotor frame rotationally supported on the base for movement about a substantially vertical axis in one of a clockwise or counter clockwise direction, and a plurality of wind receiving vanes pivotally disposed on the rotor frame for m... | 11/30/2004 |
| 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 |
| 6244919 | Vertical axis and transversal flow nautical propulsor with continuous self-orientation of the blades A vertical axis and transversal flow nautical propulsor continuously self-orients the blades. The propulsor includes a plurality of blades rotatable about a vertical axis; a blade supporting plate for supporting the blades, wherein the blade supporting pl... | 06/12/2001 |
| 6109875 | Cycloidal propeller A cycloidal propeller including a so-called slider-crank mechanism. The couplers of the slider-crank mechanism are attached to a control ring which is attached to a ball socket located at the lower end of a control rod. The required torsional retention re... | 08/29/2000 |
| 6065935 | Cycloidal propeller having blades which may be set into a sailing position The invention provides for a cycloidal propeller, in strictly rudder operation, accessory apparatuses that mesh with a gear drive connected to a shaft of the respective wing. The invention accomplishes relatively small actuation movements of the accessory... | 05/23/2000 |
| 6007021 | Flying apparatus for a vertical take off and landing A flying apparatus has a body; power means; and lifting force generating units, the lifting force generating units being arranged parallel to a plane of symmetry of the body and turnable in a vertical plane, each of the lifting force generating units is f... | 12/28/1999 |
| 5993157 | Cycloidal propeller having wings operated by hydraulic clutches A cycloidal propeller to achieve strictly a rudder operation includes accessory apparatuses containing accessory drives. Clutches are used to couple the accessory drives to the propeller shafts, and additional clutches are provided to disengage the fixed ... | 11/30/1999 |
| 5971320 | Helicopter with a gyroscopic rotor and rotor propellers to provide vectored thrust A model helicopter creates lift using rotor propellers mounted to the rotor arms of a gyroscopic rotor assembly. A controller converts front-back, and left-right inputs into speed control signals used to vary the speeds of the rotor propellers at selected... | 10/26/1999 |
| 5876181 | Multi-unit rotor blade system integrated wind turbine The described wind turbine has a set of propeller type wind force collecting rotor turbines which is comprised of an up-wind auxiliary rotor blade turbine, being disposed on the front end of the combined bevel-planet gear assembly, and a down-wind main ro... | 03/02/1999 |
| 5844323 | Rotatable wheel for developing fluid kinetic energy by accepting action forces from multiple directions In the rotatable wheel having several radiate skeletons, some auxiliary axles are mounted on each radiate skeleton and provided at the lateral of a limb of the radiate skeleton to the direction opposite to that of external forces; a movable blade or a for... | 12/01/1998 |
| 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 |
| 5462406 | Cyclodial propulsion system The present invention provides an offset control mechanism and a variable blade-pitch mechanical kinematic system for cycloidal propellers. This is achieved by the concentric positioning of the drive shaft, the variable offset circular guide track, the ec... | 10/31/1995 |
| 5326344 | Magnetically suspended and rotated rotor The impellor of a blood pump is supported by permanent magnets on the impellor and pump housing and stabilized by an electromagnet on the housing. A control circuit supplies current to the electromagnet to maintain the axial position of the impellor at a ... | 07/05/1994 |
| 5297933 | Cantilever paddlewheel apparatus This invention is a paddlewheel apparatus having an epicyclic gear train in a rotatable holder at an end of a plurality of cantilevered paddles. The paddles are maintained substantially vertical throughout the rotation of the holder and they are completel... | 03/29/1994 |
| 5195872 | Paddlewheel apparatus This invention is a paddlewheel apparatus having epicyclic gear trains in rotatable holders at opposite ends of a plurality of paddles. The paddles are maintained substantially vertical throughout the rotation of the holders and they are completely unobst... | 03/23/1993 |
| 5082423 | Paddlewheel apparatus This invention is a paddlewheel apparatus having epicyclic gear trains in rotatable holders at opposite ends of a plurality of paddles. The paddles are maintained substantially vertical throughout the rotation of the holders and they are completely unobst... | 01/21/1992 |
| 5078741 | Magnetically suspended and rotated rotor The impellor of a blood pump is supported by permanent magnets on the impellor and pump housing and stabilized by an electromagnet on the housing. A control circuit supplies current to the electromagnet to maintain the axial position of the impellor at a ... | 01/07/1992 |
| 4979871 | Wind turbine An improved vertical axis wind turbine is disclosed. The wind turbine in accordance with one embodiment, does not include a support tower but instead includes a bearing support for mounting a torque tube rotatably connected to blades, the bearing support ... | 12/25/1990 |
| 4944748 | Magnetically suspended and rotated rotor The impellor of a blood pump is supported by permanent magnets on the impellor and pump housing and stabilized by an electromagnet on the housing. A control circuit supplies current to the electromagnet to maintain the axial position of the impellor at a ... | 07/31/1990 |
| 4609827 | Synchro-vane vertical axis wind powered generator A vertical axis wind powered generator apparatus has airfoil shaped vanes, a positive and synchronous vane orientation system which is controlled by a mechanism located exterior to its rotor, two innovations for improving its aerodynamic efficiency and fo... | 09/02/1986 |
| 4546264 | Relating cellular energy generating and storage device A rotating cellular energy generating device for generating electrical power for extended periods of time. The generating device characterized by having an annular rotating housing having a plurality of individual compartments therein. The compartments re... | 10/08/1985 |
| 4494007 | Wind machine To generate power from wind economically, a feathering vane is pivotally mounted perpendicular to a tail vane and shifts the orientation of a sprocket assembly controlled by the tail vane in response to wind velocity. The sprocket assembly changes the ori... | 01/15/1985 |
| 4482110 | Cyclorotor composite aircraft A composite aircraft comprising a system of airfoils rotating about a horizontal axis providing lift and thrust in combination with a lighter-than-air gas containment bag providing bouyant lift; said aircraft being capable of lifting and transporting a lo... | 11/13/1984 |
| 4424002 | Device for conversion between flow and rotation A device for conversion between flow and rotation includes a fixed revolution center shaft integrally provided with a center sprocket, at least one vane having a self-rotation shaft and turnable about the revolution center shaft and on the self-rotation s... | 01/03/1984 |
| 4382199 | Hydrodynamic bearing system for a brushless DC motor A hydrodynamic bearing system for a motor. The motor is illustrated and described as driving a pump for an artificial heart. The motor stator has a cylindrical bore which is closed at one end. The rotor is slidable and rotatable in the bore. The rotor has... | 05/03/1983 |
| 4380417 | Installation operated with wind or water power An installation for extracting useful work, such as driving an electric generator from a fluid stream, includes a platform rotatable about a central axis and supporting a plurality of blades or vanes, each of which is rotatable about its individual blade ... | 04/19/1983 |
| 4286923 | Overload protection device for a propeller drive engine An overload protection device for the drive engine of a propeller, wherein the pitch of the propeller blades may be adjusted: A servomotor with a piston therein and the servomotor being controlled by a control valve which is adjustable by an adjustment le... | 09/01/1981 |
