Quotables
"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
PatentStorm News
Make the Most of Our Site
See this month's Top Inventors and Most Cited Patents.
Stay on top of the latest innovations by subscribing to an RSS feed.
Registered users: Manage your profile.
| Number | Title | Issue Date |
| 7281383 | Reciprocating four-stroke Brayton refrigerator or heat engine A thermal machine that can function as either a refrigerator or an external combustion heat engine is disclosed. A working gas undergoes four thermodynamic processes that comprise a Brayton cycle. Two of these processes, adiabatic compression and adiabatic expansion... | 10/16/2007 |
| 7032565 | Rotary combustion engine with lateral thrust between opposing and engaging combustion flywheels A modular revolving cylinder engine including at least two interdependent flywheels driven in rotation by a driving device (1) that rotates them in synchronization and in opposite directions. Each flywheel includes a plurality of equally spaced hollow pushrod... | 04/25/2006 |
| 6988482 | Dual rotor internal combustion engine An engine including a housing formed with a pair of side-by-side intersecting substantially cylindrical cavities, and a pair of counter-rotating power rotors rotatably mounted within the cavities. The pair of power rotors include intermeshing lobes that each define ... | 01/24/2006 |
| 6283087 | Enhanced method of closed vessel combustion In a spark ignition (SI) turbine engine, the combustible fuel-air mixture is compressed by volume displacement and accelerated at high velocity into the ignition source, to reduce the combustion time relative to conventional SI engines, lowering the lean ... | 09/04/2001 |
| 5083540 | Rotary engine This invention relates to improvements on rotary engines having annular cylinders, each having at least two pistons drivable in rotation therein, the pistons being fixed respectively to concentric shafts that are thereby independently rotated around their... | 01/28/1992 |
| 4656984 | Rotary internal combustion engine with integrated supercharged fuel-air induction An improved "Wankel-type" rotary engine wherein the same trochoidal cavity employed for effecting a four-phase internal combustion engine operation is also employed to perform a supercharging function in that air is compressed in one chamber (chambers bei... | 04/14/1987 |
| 4236496 | Rotary engine The major components of this rotary engine are two equal sized rotary units, the housing containing them along with associated ignition and cooling systems. Each of the rotary units consists of a shaft, gear, two outer compressor wheels, and one center po... | 12/02/1980 |
| 4230088 | Rotary internal combustion engine with integrated supercharging A rotary internal combustion engine with four vanes carried by a rotor engaging an internal oval housing surface to define four chambers that orbit the rotor axis. Two of the chambers, diametrically opposed, are operated as working chambers on a four-phas... | 10/28/1980 |
| 4202313 | Rotary engine A rotary internal combustion engine having an ellipsoidal wall member which forms an ellipsoidal internal chamber. A drive shaft is rotatably mounted in the housing and extends transversely through the ellipsoidal chamber. A substantially cylindrical roto... | 05/13/1980 |
| 4080935 | Rotary internal combustion engine An internal combustion engine of the rotary type comprises a housing or block provided with a cavity which is cylindrical in one portion and enlarged in another; the side walls of the cavity are flat. A drive shaft is rotatably mounted in the housing for ... | 03/28/1978 |
| 3973525 | Rotary piston internal combustion engine A rotary piston internal combustion engine with a fission vaporizer, gasifier or carburetor means with sealing strips arranged on a mantle section of the housing, and with piston means of trochoidal construction in which the circumference of the piston me... | 08/10/1976 |
