Did You Know...
...that Charles Goodyear performed some of his experiments on rubber while in debtor's prison? He was there so often he referred to it as his "hotel". Chronically in debt because of poor business sense and ill health, Goodyear depended on the generosity of friends and family. Even after he unlocked the secret to vulcanizing rubber, he was unable to improve his financial situation. When he died, his estate was $200,000 in debt.
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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 |
| 7216516 | Wobble joint A wobble joint particularly useful for supporting a wash plate in a wash basket of an automatic washing appliance includes inner and outer races formed with mating part-spherical surfaces having common centers of curvature about a longitudinal axis of the joint. Ant... | 05/15/2007 |
| 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 |
| 7014605 | Pulsatile blood pumping system A blood pumping system to support living organisms based on a spherical multi vane and multi chamber pump with an oscillating motion that delivers pulsatile flow. The blood pumping system includes a number of design elements that address the particular needs and com... | 03/21/2006 |
| 6390052 | Wobble engine A wobble plate engine (20) includes a wobble plate assembly (26) having a wobble plate (58) that rolls against truncated cone portions (42) of a housing (22) and has an inner extremity (60) rotatably supported by an axially inclined annular bearing (49, 4... | 05/21/2002 |
| 5897301 | Swash-plate machine A swash-plate machine includes a hollow-spherical work chamber which is divided by a partition into at least one high-pressure chamber and one low-pressure chamber, into which an operating medium can be carried through a conduit system. The partition exte... | 04/27/1999 |
| 5735172 | Swashplate machine A swashplate machine comprises a casing (1) provided with end members (2, 3) and a rotatable shaft (4). The shaft (4) drives a swashplate (5) through an interconnecting member (6) comprising an off-set sleeve (7) that is keyed to the shaft (4) and a non-r... | 04/07/1998 |
| 5685702 | Swash-plate machine A swash-plate machine includes a hollow-spherical work chamber which is divided by a partition into at least one high-pressure chamber and one low-pressure chamber, into which an operating medium can be carried through a conduit system. The partition exte... | 11/11/1997 |
| 5531576 | Wobble plate pump with side chambers through which fluid flows This wobble plate pump has a pump chamber and additional chambers, which contain the transport medium. The additional chambers are connected to the suction or compression region of the pump, and the transport fluid flows through these chambers continuousl... | 07/02/1996 |
| 5482449 | Nutating disc compressor A nutating disc compressor includes a disc having cone-shaped surfaces and a centrally disposed sphere positioned within a symmetrical, a spherical-segment shaped chamber which is adapted to contain the disc and has a central bearing to movably engage the... | 01/09/1996 |
| 5454699 | Wobble pump A swash plate pump having a pump housing comprises a swash plate shaft and a swash plate being disposed in a pump chamber. The pump chamber has an intake and a delivery opening. The pump chamber is formed by two lateral surfaces and by a spherical inner s... | 10/03/1995 |
| 5435705 | Driving apparatus for a wobble plate machine A drive apparatus for a wobble plate machine includes a transport chamber having at least two side walls. A wobble plate is disposed in the transport chamber and abuts at least one of the side walls to form a seal and to divide the transport chamber into ... | 07/25/1995 |
| 5251594 | Nutating internal combustion engine A nutating internal combustion engine is disclosed including a disc having cone-shaped surfaces and a centrally disposed sphere positioned within a symmetrical, spherical-segment shaped chamber which is adapted to contain the disc and has a central bearin... | 10/12/1993 |
| 5242281 | Wobble plate pump A pump assembly comprising a housing having a cavity therein, an inlet leading to the cavity and an outlet leading from the cavity and a wobble plate mounted for nutating movement in the cavity. The wobble plate divides the cavity into first and second pu... | 09/07/1993 |
| 5199864 | Spherical fluid pump or motor with spherical ball comprising two parts A fluidic machine operable primarily as a pump or a fluid motor having primary and secondary vaned members hinged together within a spherical pump chamber to define four intake and exhaust spaces of varying volumes. A tracking mechanism which includes an ... | 04/06/1993 |
| 5138993 | Rotary wavy motion type engine A rotary wavy motion type engine is disclosed, and the engine includes: a center housing 1 and side housing 2,2'. The center housing 1 is provided with an exhaust hole 1', and the center and side housing form a frame and an internal chamber. A disc shaped... | 08/18/1992 |
| 5125809 | Wobble plate pump A pump assembly comprising a housing having a cavity therein, an inlet leading to the cavity and an outlet leading from the cavity and a wobble plate mounted for nutating movement in the cavity. The wobble plate divides the cavity into first and second pu... | 06/30/1992 |
| 4938025 | Power conversion machine having pistons which are moved in a turning movement in a spherical housing A power conversion machine which is provided with a spherical housing (10) with piston construction (36,37) having two-double-acting pistons (36) turnable about a first axis (x--x) cooperating with a partition plate (40) tiltable about a second axis (z--z... | 07/03/1990 |
| 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 |
| 4324536 | Link-coupled rotor assembly A fastening system particularly suited for securing parts of a rotor of a slant axis rotary mechanism together including links (110) abutting each of the rotor parts (60, 62), and spanning the interface (ABCD) between the parts. Pivotal nut structures (10... | 04/13/1982 |
| 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 |
| 4318675 | Rotary expansible chamber apparatus with stress relief Rotary expansible chamber devices include slant-axis rotary apparatus such as engines, compressors, pumps, and the like. Eccentric rotating members of such apparatus generate thrust and bending loads of high magnitude during operation thereof. The rotor s... | 03/09/1982 |
| 4229150 | Anti-rotation arrangement for nutating fluid device In a fluid driven, nutating action apparatus, comprising a motor housing with a wobble plate mounted therein for universal tilting movement and movable by the driving fluid through progressively changing tilt angles for a nutating action cycle, a new and ... | 10/21/1980 |
| 4149835 | Temperature responsive seal lubrication for rotary mechanisms A rotary mechanism including a housing defining an operating chamber having a wall, a shaft journalled in the housing and having an eccentric within the chamber, a rotor within the chamber and journalled on the eccentric, and at least one seal carried by ... | 04/17/1979 |
| 4125030 | Slant axis rotary mechanism An improved slant axis rotary mechanism including a housing defining a chamber having radially inner and outer spherical walls interconnected by opposed, generally radially extending side walls, a shaft journalled in the housing and having an angularly of... | 11/14/1978 |
| 4080121 | Joint sealing for engine housings An improved mechanism such as an engine, pump, compressor, or the like, including two abutting housing members sealingly engaging each other and defining a chamber receiving a piston. The members are clamped together and at least one of the members is rel... | 03/21/1978 |
| 4067669 | Rotary mechanism with agitators in the rotor coolant cavities A rotary mechanism including a housing defining a chamber, a shaft journalled in the housing to extend through the chamber and having an eccentric within the chamber, a rotor within the chamber and journalled on the eccentric, the rotor having surfaces co... | 01/10/1978 |
| 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 |
| 4047855 | Rotary mechanism with improved cooling An improved slant axis rotary mechanism of the type including a housing defining a chamber having a radially outer spherical wall and a radially inner spherical wall interconnected by opposed, generally radially extending side walls. A shaft is journalled... | 09/13/1977 |
| 4026662 | Bearings for slant axis rotary mechanisms An improved slant axis rotary mechanism, such as an engine, compressor, pump, or the like, of the type having a housing with a chamber defined by a radially outward spherical wall, a radially inner spherical wall, and opposed generally radially extending ... | 05/31/1977 |
| 4011031 | Rotor constructions for slant axis rotary mechanisms An improved slant axis rotary mechanism including a housing defining a chamber, a shaft journalled in the housing and having an angular eccentric within the chamber and a rotor within the chamber and journalled on the eccentric. The eccentric includes a r... | 03/08/1977 |
| 4008987 | Combined timing gear and pump for rotary mechanisms A rotary mechanism including a housing defining an operating chamber, a shaft journalled in the housing and having an eccentric within the chamber, a rotor within the chamber and journalled on the eccentric, a timing gear carried by the housing and within... | 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 |
| 4005950 | Bearings for slant axis rotary mechanisms An improved slant axis rotary mechanism including a housing defining a chamber having an operating cavity. A shaft is journalled in the housing and includes an angularly offset portion within the chamber. The angularly offset portion has a peripheral, gen... | 02/01/1977 |
| 3999900 | Pump with disk-shaped piston for liquid or gaseous fluids A nutating pump of the type which has a rotatable shaft with a central member with an annular support groove at an angle to the shaft in which a disk is moveably supported and is restrained against rotation by a partition inserted in a radial slot in the ... | 12/28/1976 |
| 3999903 | Combination thrust and journal bearing An improved combination journal and thrust bearing particularly suited for use in slant axis rotary mechanisms of the type including a housing defining a chamber with an operating cavity, a shaft journalled in the housing and including an angularly offset... | 12/28/1976 |
| 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 |
| 3989421 | Housing construction for slant axis rotary mechanism A slant axis rotary mechanism such as an engine, pump, or the like. The mechanism includes a shaft having an angularly off-set portion journalling a rotor thereon. The rotor has a peripheral flange with a plurality of apices on each side of the flange. Th... | 11/02/1976 |
