"To place a man in a multi-stage rocket and project him into the controlling gravitational field of the moon where the passengers can make scientific observations, perhaps land alive, and then return to earth--all that constitutes a wild dream worthy of Jules Verne. I am bold enough to say that such a man-made voyage will never occur regardless of all future advances."
Lee deForest, American radio pioneer ; 1957
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| Number | Title | Issue Date |
| 7357684 | Control system for a linear propulsor array The invention comprises a method of using a scalable, configurable “propulsor” system to move and navigate a submersible device through a fluid medium. A propulsor system is an assembly of individual propulsors that act in concert to form a substantially continu... | 04/15/2008 |
| 7244151 | Linear propulsor with linear motion The invention comprises a scalable, configurable “propulsor” system. A propulsor system is an assembly of individual propulsors that act in concert to form a substantially continuous control surface that undulates in a working fluid. Each propulsor is driven and... | 07/17/2007 |
| 7204731 | Linear propulsor with radial motion The invention comprises a scalable, configurable “propulsor” system. A propulsor system is an assembly of individual propulsors that act in concert to form a substantially continuous control surface that undulates in a working fluid. Each propulsor is driven and... | 04/17/2007 |
| 7090548 | Method of using a linear propulsor array for propulsion and navigation The invention comprises a method of using a scalable, configurable “propulsor” system to move and navigate a submersible device through a fluid medium. A propulsor system is an assembly of individual propulsors that act in concert to form a substantially continu... | 08/15/2006 |
| 6959895 | Dual wing-pair air vehicle A vehicle for flying and having a forward portion and a rearward portion opposite the forward. The vehicle includes a first pair of wings arranged at the forward portion of the vehicle, a second pair of wings arranged at the rearward portion of the vehicle, and a su... | 11/01/2005 |
| 6652232 | Self-trimming oscillating wing system The present invention shows an oscillating wing system like lifting surface featuring a symmetrical profile mounted free to rotate over a fixation point located ahead neutral point and self-trimming at angle of attack in the flow by adjustment of a traili... | 11/25/2003 |
| 6273680 | Extraction of energy from flowing fluids Method and apparatus for converting the kinetic energy of a moving fluid stream into useful work by using a cascade of thin aero or hydro foils positioned therein. The foils may be provided with at least two degrees of freedom and adjacent foils move out ... | 08/14/2001 |
| 5820342 | Fluid forcing device with a fluted roller drive A fluid forcing device comprising many rotatable slender elements that converts mechanical energy into fluid energy by mechanically arranging and maintaining, at all time, the rotatable slender elements in a predetermined wave form and by mechanically mov... | 10/13/1998 |
| 5611666 | Fluid forcing device A fluid forcing device comprising many rotatable slender elements that converts mechanical energy into fluid energy by mechanically arranging and maintaining, at all times, the rotatable slender elements in a pre-determined wave form and by mechanically m... | 03/18/1997 |
| 5466124 | Device for generating an inversion-kinematic movement A device for converting a rotational movement for directing displacement of a flowable medium is provided with a mount and two rotatably mounted fixed axles which are arranged at a distance from one another on the mount and on which are articulated two en... | 11/14/1995 |
| 4688994 | Watercraft propulsion device A watercraft propulsion device having a forward and a rearward foil in nested relationship for reciprocal oscillating movement in opposite directions having a foil angle greater than 0° and less than 60°.... | 08/25/1987 |
| 4595336 | Wind powered apparatus An elevated and elongated boom is centrally pivoted for rocking movement in a vertical plane through the horizontal plane. Provision is made to align such plane with the direction of the wind. A pair of free wings are mounted on the fore and aft ends of t... | 06/17/1986 |
| 4525122 | Wind-powered machine A wind-powered machine is provided in which a vane is driven through a vertical or horizontal arc with a back and forth motion, the motion of the vane serves to actuate a power generating mechanism, in the case where the vane moves in a vertical arc the a... | 06/25/1985 |
| 4486145 | Fluid machine A fluid machine which converts fluid movement into a useful force utilizing a pivotally mounted first plate which is hingedly connected to a second plate, the first plate first contacting the moving fluid and the second plate causing the first plate to mo... | 12/04/1984 |
| 4470770 | Wind powered apparatus An elevated and elongated boom is centrally pivoted for rocking movement in a vertical plane through the horizontal plane. Provision is made to align such plane with the direction of the wind. A pair of free wings are mounted on the fore and aft ends of t... | 09/11/1984 |
| 4178128 | Method of and device for propulsion A propulsion device and its method of use, the device having a forward foil and a rearward foil adapted for alternate transverse reciprocal and alternate pivotal movement in opposed direction about parallel axes. The forward and rearward foil axes are per... | 12/11/1979 |
| 4170882 | Agitator having vanes adjustable to provide different stroke lengths An agitator for a vertical axis washing machine and for effecting uniform, repetitive oscillations about the machine axis has upper, lower and middle portions with different degrees of lost motion so that the agitator can achieve multiple stroke lengths a... | 10/16/1979 |