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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 |
| 7258082 | Oscillating-piston machine An oscillating-piston machine comprises a housing, in which a first and at least a second piston are arranged, which pistons can together revolve in the housing about an axis of rotation that is fixed with respect to the housing, and which pistons, as they revolve a... | 08/21/2007 |
| 7214045 | Spherical fluid machine with flow control mechanism A rotary fluid machine, such as a pump or motor, is provided with a fluid flow control mechanism that allows the flow of fluid to be easily and precisely controlled. The device has a housing with a spherical interior in which primary and secondary vanes rotate, with... | 05/08/2007 |
| 6442935 | Driving system for machinery, such as a motor, compressor etc. A driving system (13) comprises a housing (10) having spherical hollow space (11), a rotatable main shaft (14), a driving means (16) and a piston construction (15). The piston construction (15) is rockable about a first rocking axis (15a) in a rectilinear... | 09/03/2002 |
| 5466133 | Peristaltic pump and diaphragm therefor A peristaltic pump having a shaft mounted within a housing and coupled with a rotor to induce nutation in a wobble plate. A pump diaphragm is located and affixed to one side of the wobble plate and at its periphery to the housing. A backup diaphragm is em... | 11/14/1995 |
| 4919601 | Waveform actuating air compressor An air compressor having a tilting disc which is actuated in waveform. The tilting disc is adapted to abut mounting the disc on conical surfaces of side casings by an eccentric shaft, and is moved in waveform but not rotated against the rotation of the ec... | 04/24/1990 |
| 4877379 | Rotary mechanism for three-dimensional volumetric change A rotary mechanism for a three-dimensional volumetric change including a rotor having a partially spherical surface as a bottom surface and a substantially conical surface which includes a plurality of apexes extending substantially radially, and a member... | 10/31/1989 |
| 4441869 | Power conversion machine having a nutating piston The power conversion machine has a piston which is adapted to effect a combined turning and rocking movement internally in a double-curved space. The piston is in drive connection with a rotary shaft via an eccentric disc which is obliquely disposed on th... | 04/10/1984 |
| 4324535 | Slant axis rotary piston mechanism with fixed sinuous partition in grooved rotor A slant axis rotary piston mechanism including a shaft (42) having an angularly offset eccentric (44) and a housing (10) defining a general spherical chamber (22) journalling the shaft and containing the eccentric. A peripheral, generally sinuous partitio... | 04/13/1982 |
| 4181478 | Seal life in rotary mechanisms A rotary mechanism having improved seal life including a housing defining an operating chamber having a wall configuration based on a desired geometrical shape which is an n order harmonic curve where n is an integer of 1 or more, a shaft journalled in th... | 01/01/1980 |
| 4056336 | Apex seals for slant axis rotary mechanisms An improved apex seal construction for slant axis rotary mechanisms. The mechanism includes a housing defining a chamber having radially inner and outer spherical walls interconnected by opposed, generally radially extending side walls, a shaft journalled... | 11/01/1977 |
| 4029444 | Sealing bolt seat for rotary piston machine A rotary piston machine of the type having a slant or precessing rotor or the type having a parallel axis rotor, such as a Wankel engine, having a rotor seal grid formed from peripheral and apex seals which are connected together at their adjacent ends by... | 06/14/1977 |
| 4028020 | Oil seal for a rotary engine An improved slant axis rotary mechanism such as an engine, a compressor, a pump, or the like. The mechanism includes a housing, a shaft journalled in the housing having an angularly offset portion within the housing, and a rotor journalled within the hous... | 06/07/1977 |
| 4011030 | Engine seal assembly An improved internal combustion engine including a housing defining an operating chamber having a wall, an output shaft journalled in the housing and a piston operatively associated with the shaft and movable within the housing. The piston is provided wit... | 03/08/1977 |
| 4008989 | Bolt seal for rotary piston machine A rotary piston machine of the type having a slant or precessing rotor or the type having a parallel axis rotor, such as a Wankel engine, having a rotor seal grid formed from peripheral and apex seals extending around surfaces of the rotor and together de... | 02/22/1977 |
| 4008986 | Corner seal for rotary mechanisms An improved corner seal for rotary mechanisms, such as trochoidal or slant axis rotary mechanisms. The mechanism includes a housing defining a chamber with a rotor movable therein. The rotor includes a piston seal receiving bore and a piston seal is recei... | 02/22/1977 |
| 4008014 | Piston seals for rotary mechanisms An improved rotary mechanism including a housing defining an operating chamber, a shaft journalled in the housing and extending through the chamber, and a rotor having plural apices journalled on the shaft and within the chamber. The rotor includes apex s... | 02/15/1977 |
| 3999902 | Slant axis rotary mechanism with relieved apex portions An improved slant axis rotary mechanism including a housing defining an operating chamber having generally radially extending opposed side walls, a shaft having an angularly offset portion journalled in the housing with the angularly offset portion within... | 12/28/1976 |
| 3988078 | Seals for rotary engines A rotary mechanism including a housing defining a chamber including an operating cavity, a shaft journalled by the housing, and a rotor within the chamber and journalled on the shaft, the rotor having a plurality of apices on one side thereof. There is a ... | 10/26/1976 |
| 3981640 | Slant axis rotary mechanism An improved slant axis rotary mechanism including a housing defining an operating chamber, a shaft journalled in the housing having an angularly offset portion within the chamber and a rotor within the chamber and journalled on the angularly offset portio... | 09/21/1976 |
| 3972660 | Corner seals for rotary mechanisms An improved corner seal for rotary mechanisms, such as trochoidal or slant axis rotary mechanisms. A rotor is provided with a piston seal receiving bore and the piston seal is received in the bore to be carried by the rotor and sealingly engage a wall of ... | 08/03/1976 |
