Did You Know...
...that in 1800 ether was first used by partyers as a fun diversion? Sniffing the gas led to hilarious and raucous laughter as people watched each other become more and more intoxicated and silly. Several doctors independently realized the value ether would have to anesthetize surgery patients. Of those who claimed rights to the "discovery," none had a happy ending. One had a seizure and died defending his rights. Another spent his life in an asylum because he had been denied acclaim. A third became addicted to chloroform and, in a New York City jail, he soaked a cloth in the drug, severed an artery and bled to death.
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| Number | Title | Issue Date |
| 7509930 | Internal combustion barrel engine A two-stroke barrel engine includes a power output shaft configured to rotate, an even number of cylinders encircling the power output shaft, wherein each cylinder includes opposing first and second power pistons configured to reciprocate within their respective pow... | 03/31/2009 |
| 7219633 | Compression ignition rotating cylinder engine A compression ignition rotating cylinder engine (CIRC), provides a design that has several distinct advantages over conventional internal combustion engines. Rotating cylinder blocks and a fixed header plate provide a more fuel-efficient engine with constant positiv... | 05/22/2007 |
| 6968751 | Axial piston machines This invention relates to internal combustion engines with cylinders arranged parallel to the main shaft and where reciprocating movements of the pistons are converted to rotation by means of a Z-crank mechanism and motion converter, or conversely to systems such as... | 11/29/2005 |
| 6925973 | Piston engine assembly A variable compression piston assembly includes a plurality of pistons, a transition arm coupled to each of the pistons, and a rotating member mounted for pivoting movement to slide along an axis of the drive member. Movement of the rotating member relative to the d... | 08/09/2005 |
| 6904878 | Internal combustion engine with novel fuel/air delivery system Blower forces fuel/air mixture into bore of cylinder head against small diameter piston of compound piston assembly, forcing assembly down in engine cylinder, permitting fuel/air mixture to enter main cylinder of engine in which it is ignited. Exhaust forces assembl... | 06/14/2005 |
| 6003480 | Wobble plate engine A wobble plate engine assembly incorporating as offset mount between the wobble plate and each connecting rod to a piston such that a line of action of the connecting rod at the wobble plate is resolved into a centripetal and tangential component thereby ... | 12/21/1999 |
| 5782219 | Reciprocating engine with a wobble plate transmission The reciprocating engine more particularly intended for high pressure applications or motor vehicle CO2 air conditioning systems, has a wobble plate transmission, whose wobble plate (3) can assume different inclined positions for power control ... | 07/21/1998 |
| 5638778 | Opposed piston swash plate engine An opposed piston internal combustion engine includes a rotary shaft provided with a first and second swash plate, each inlined relative the axis of the shaft at equal but opposite inclinations. The shaft is mounted for rotation in a frame on which at lea... | 06/17/1997 |
| 4986226 | Internal combustion engine An internal combustion engine comprising an engine block including a plurality of parallel, spaced apart cylinder modules, each module having a cylinder bore and a pair of pistons in each bore which are simultaneously movable in opposite directions and a ... | 01/22/1991 |
| 4905637 | Diesel aircraft engine--also convertible for other applications--optimized for high output, high supercharge and total energy utilization A diesel engine with a wobble plate for aircraft comprises cylinders of which the axis is arranged coaxially to the shaft. The pistons move into a cylinder and form a common combustion chamber. The pistons control the exhaust and intake with control times... | 03/06/1990 |
| 4869212 | Modular universal combusion engine An engine for rotating a main drive shaft (14) from a plurality of power modules (18) arranged in a concentric circumferentially spaced relation about a main drive gear (12) secured to the main drive shaft (14). Each power module (18) has a pair of parall... | 09/26/1989 |
| 4622927 | Internal combustion engine An internal combustion engine includes four cylinders arranged concentrically about a driving shaft and each having two opposing pistons which are linked to wobble elements via respective connecting rods. The wobble elements are supported by the driving s... | 11/18/1986 |
| 4569314 | Two-stroke axial pistons engines A two-stroke axial engine in which the inlet of fresh mixture is effected directly in a scavenging chamber through an aperture actuated by the primary shaft, the fresh mixture being thereafter exhausted under the control of the piston from the scavenging ... | 02/11/1986 |
| 4523549 | Internal combustion engine An internal combustion engine is disclosed with a pair of opposed pistons disposed inside a cylinder bore in a block. The pistons are coupled to a shaft by means of a wobbler mechanism which converts the reciprocatory movement of the pistons to rotary mov... | 06/18/1985 |
| 4489682 | Linear movement motor and a swash plate for a motor of this type The present invention relates to a motor comprising at least one piston of linear and reciprocating translational movement and a swash plate mounted at an angle on a shaft driven in rotation in an engine block by the reciprocating movements of the plate w... | 12/25/1984 |
| 4487168 | Machine having oscillating chambers and pistons The machine comprises at least one central pivot 7 angularly fast with a control member 1 and mounted for oscillation on said control member 1 around a direction perpendicular to the axis of the control member 1 and a first eccentric 31 the axis of the ac... | 12/11/1984 |
| 4285303 | Swash plate internal combustion engine A two-cycle internal combustion engine has a plurality of parallel cylinders supporting a central drive shaft, a piston in each cylinder having an outer extension connected to a swash plate rotatably mounted on an inclined portion of the drive shaft. The ... | 08/25/1981 |
| 4169436 | Reciprocating machine with refrigerated cooling of intake air A barrel-type reciprocating machine having a block with a shaft journaled through its center with the ends of the shaft offset at an oblique angle. A pair of wobble spiders are attached to the oblique crank end of the shaft and are in turn attached to an ... | 10/02/1979 |
| 4129102 | Opposed piston engine An engine has pairs of opposing pistons that have common combustion spaces located centrally in a housing, around a single central drive shaft. The inner ends of the piston rods are connected to piston heads with ball and socket joints and the outer ends ... | 12/12/1978 |
