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| Number | Title | Issue Date |
| 7270106 | Free-planetary gear moderated nutating (athena) engine In a nutating engine (or more generally a rotary displacement device) the cycling of combustion occurs between inner and outer spherical surfaces. The combustion chambers are additionally defined only by the surfaces of teeth of specially designed gears. These gears... | 09/18/2007 |
| 6941900 | VAL rotary engine A rotary engine has a spherical enclosure serving as a combustion chamber, a first baffle inside the combustion chamber slideable along a groove formed in the spherical enclosure, and a second baffle disposed in the combustion chamber which is in sealing engagement ... | 09/13/2005 |
| 5983738 | Eccentric sealed rotary drive device, particularly for a positive displacement pump An airtight rotating driving device with eccentricity, especially for volumetric pump, the device including a bent shaft (1) presenting an input axis (5) and an output axis (10) parallel and off-centered in such a way as to carry out an orbital circular m... | 11/16/1999 |
| 5336067 | Spherical engine In a nutating spherical engine, improvements for increasing the seal between the rotor and the engine head comprise the provisions of a pair of minor cusps disposed on the rotor which as seen in plan view are diametrically opposed and at right angles to t... | 08/09/1994 |
| 5307885 | Attitude and drilling-direction control device An attitude control device has a plurality of harmonic drive mechanisms of the hollow type, preferably first and second harmonic drive mechanisms. First and second rotational members are connected to the outputs of the first and second harmonic drive mech... | 05/03/1994 |
| 5252870 | Magnetic eccentric motion motor An eccentric-motion motor for driving a utilization mechanism includes a stator defining a closed surface pathway, an armature composed of a permanent magnet rollably disposed on the closed surface pathway, a series of electromagnetic elements disposed in... | 10/12/1993 |
| 4648813 | Universally-movable machine part and fluid transfer apparatus utilizing same A universally-movable machine part includes a disc member having a disc shaft and a recessed slot defining a bearing surface conforming to a smooth cylindrically-curved plane. At least one planar vane member defines a lower bearing surface conforming to t... | 03/10/1987 |
| 4629404 | Nutating disc type fluid device A nutating disc type fluid device in which in one embodiment nutating elements are mounting within a single chamber of a housing on a common shaft in a manner which is dynamically and pressure balanced. A divider plate is fitted through slots formed on on... | 12/16/1986 |
| 3981639 | Nutating engine A rotor having the configuration of a spherical wedge is mounted in a hemispherically shaped chamber for rotary, nutating motion about the center of curvature of the chamber. The rotor divides the chamber into two separate sections, and revolves about a s... | 09/21/1976 |
