Bizarre Patents
An armor with rollers is provided that enables a user to move in all positions by rolling on a hard and smooth surface while constantly varying his bearing points on the ground.
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 |
| 7353796 | Rotary machine The rotary machine can be used as a rotary internal combustion engine and as a pneumatic or hydraulic pump. The rotary machine comprises a housing in the form of two intersecting cylinder parts of different diameters having parallel axes. A rotor is received in the ... | 04/08/2008 |
| 7192264 | Hyrdraulic motor The invention relates to a hydraulic motor having an outer casing and eccentric means for rotating a power shaft by means of fluid through a pressure chamber arrangement. The eccentric means comprise an eccentric part formed in the power shaft, a first eccentric rin... | 03/20/2007 |
| 7077098 | Vane-type piston, four-cycle multi-chamber rotary internal combustion engine A rotary internal combustion engine has a hollow stator with inner surface formed by two concentric cylindrical surfaces, which fluently transit one into the other via ramp surfaces, and a cylindrical rotor, having the same radius as smaller concentric surface of th... | 07/18/2006 |
| 6883488 | Rotary combustion engine A rotary combustion engine includes a driving eccentric ring arranged between a non-rotary outer casing and a non-rotary inner casing for rotating a power shaft situated inside the inner casing. In order to drive the eccentric ring, a combustion chamber arrangement ... | 04/26/2005 |
| 5865152 | Rotary piston internal combustion engine An internal combustion engine designed to convert thermal energy into mechanical energy according to the same general principle employed in conventional reciprocating piston-and-cylinder combustion engines, wherein the equivalent of the cylinder of the co... | 02/02/1999 |
| 5797366 | Toroidal internal combustion engine An internal combustion engine comprises a toroidal combustion chamber housing within which slides at least one piston. The combustion chamber housing has a circumferential longitudinal slot sealed by a ring seal to which the pistons are rigidly attached. ... | 08/25/1998 |
| 5595155 | Rotary internal combustion engine A rotary internal combustion engine including a rotatable blade driver mechanism including a shaft, a cam coupled about the shaft, a plurality of annular blade drivers coupled to the shaft, and a plurality of extendable compression blades slidably dispose... | 01/21/1997 |
| 5555866 | Rotary engine A rotary internal combustion engine has a double pivot center and allows for efficient communication between a central cylindrical intake/compression chamber and a crescent-shaped expansion chamber. Power packs rotating about the upper pivot location rece... | 09/17/1996 |
| 4902209 | Sliding segment rotary fluid power translation device A multiple or compound work cycle, eccentric rotor, fluid power translation device, featuring adjustable and reversible work output capability, essentially comprising: A symmetric rotor having a plurality of fixed radially extended vanes rotating closely ... | 02/20/1990 |
| 4552107 | Rotary internal combustion engine A rotary engine is comprised of at least one rotor assembly including a drum rotor and a cylinder rotor in internal contact with the drum rotor. The drum rotor bounds, with the cylinder rotor, and a crescent shaped working chamber and an annular working c... | 11/12/1985 |
| 4250851 | Rotary piston engine An engine having a drive shaft secured to a rotary piston mounted within a casing. An intake-compression chamber between the casing and piston is supplied with fuel through an intake port. The rotary piston has an annular expansion-exhaust chamber and an ... | 02/17/1981 |
| 4154208 | Rotary engine Rotary engine having an annular space formed between the housing and the rotor, the annular space being divided into an intake-compression chamber and air expansion-exhaust chamber.... | 05/15/1979 |
| 4033299 | Rotary engine This rotary engine performs the same four phases as any other piston and rotary engine. Yet, unlike other engines this one has no crankshaft. It consists of a circular housing in which a circular rotor revolves slightly off center in relation to its housi... | 07/05/1977 |
| 4023540 | Rotary engine An internal combustion engine of the rotary type which includes a cylindrical rotor having a skirt portion, rotating in an annular chamber, that comprises two arcuate walls of differing radii joined by relatively short, diametrically disposed sloping port... | 05/17/1977 |
| 3976037 | Rotary engine A rotary engine has an annular stator and an externally rotating rotor, as well as an internally counter-rotating hollow shaft. Compression and expansion chambers are defined at the boundaries between the stator and said rotor and shaft respectively. Tria... | 08/24/1976 |
| 3942484 | Impeller type engine An impeller type engine is disclosed which includes two cover members joined to form a housing, two cam members disposed in the housing facing each other to form a sinuous track of uniform width, a shuttle slidably disposed in the track, an impeller to ca... | 03/09/1976 |
