Bizarre Patents
Reward Candy Dispenser for Personal Computers
A personal computer peripheral, battery powered reward candy dispenser which immediately presents students with a single candy for each problem completed correctly.
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 |
| 7942635 | Twin spool rotor assembly for a small gas turbine engine A small twin spool gas turbine engine with a hollow inner rotor shaft having solid shaft ends and an outer rotor shaft having a cylindrical portion on the compressor end that forms a forward bearing support surface and a turbine rotor disk on the turbine end that fo... | 05/17/2011 |
| 7435052 | Shaft oil purge system A shaft oil purge system comprises an entrance seal, an exit seal and a buffer air flow. The entrance seal comprises a circumferential carbon seal running on an inner shaft and another carbon seal running on an outer shaft. The exit seal comprises a labyrinth seal p... | 10/14/2008 |
| 7074011 | Wind power installation with two rotors in tandem A wind power installation comprising at least two rotors which are arranged one behind the other and of which the first rotor which is arranged in front of the second rotor is of a smaller diameter than the second rotor. ... | 07/11/2006 |
| 7059826 | Multi-directional air circulating fan A multi-directional air circulation device for use in a living space. The multi-directional air circulation device comprises a first housing having i) a first wall portion defining a first interior space, ii) a first air outlet, and iii) a first air directing grill ... | 06/13/2006 |
| 6935841 | Fan assembly A fan assembly includes a vertical axis wind turbine (VAWT) which is coupled to an air extraction or air supply fan. The VAWT is located above and is coupled coaxially to the fan. The fan assembly also includes an auxiliary turbine to provide start-up torque to init... | 08/30/2005 |
| 6406261 | Counter propeller propulsion unit A propeller propulsion unit comprising a prime mover, propellers, and rotating force transmission for transmitting the rotating force of the prime mover to the propellers, wherein a counter propeller is fixed to a main shaft and a forward propeller is mou... | 06/18/2002 |
| 6318962 | Device for generating an aerodynamic force by rotational movement A generator of aerodynamic force by rotational movement, by means of a device which, starting from a rotational movement, induces a field of velocities in the surrounding fluid, which produces a difference in pressure on a surface, which in turn results i... | 11/20/2001 |
| 6007021 | Flying apparatus for a vertical take off and landing A flying apparatus has a body; power means; and lifting force generating units, the lifting force generating units being arranged parallel to a plane of symmetry of the body and turnable in a vertical plane, each of the lifting force generating units is f... | 12/28/1999 |
| 5860788 | Low drag fan assembly A fan assembly includes a circular first array of first fan blades; a first primary ring member supportively connecting inner extremities of the first blades about a fan axis, respective end extremities of at least a majority of the first blades defining ... | 01/19/1999 |
| 5131805 | Dual axis fluid current motor Apparatus and method for harnessing fluid energy from a fluid current and converting it into mechanical energy. The invention comprises a big wheel and a little wheel where the little wheel rotates about on axis parallel to but offset from an axis about w... | 07/21/1992 |
| 5108259 | Flexible connector for use in aircraft The invention concerns a connector, in an aircraft engine, for mounting a ring to a turbine rotor which the ring surrounds. The ring carries propeller blades, and the connector transmits both thrust and torque loads between the ring and the rotor, without... | 04/28/1992 |
| 4236866 | System for the obtainment and the regulation of energy starting from air, sea and river currents A system for obtaining and regulating energy from the air or sea and river currents includes a cyclone converter formed by three concentric rotating bodies, either on shafts or cylindrical rails or the like. Fixed rollers or other electromagnetic systems ... | 12/02/1980 |
| 4150301 | Wind turbine An improved fluid driven turbine blade system is provided, which is self-governing at relatively high fluid velocities. This is achieved by a combination of two sets of turbine blades, one having a positive efficiency, and the other having a negative effi... | 04/17/1979 |
| 4088352 | Wind-driven power plant A wind-driven power plant comprising at least one rotor having a gyration axis, a base, a carrier construction pivotable on said base about an upstanding axis, a support structure pivotable on said carrier construction about a tilt axis in a manner permit... | 05/09/1978 |
| 4073516 | Wind driven power plant A tethered wind-driven floating power plant which includes a support body carrying at least one rotor assembly, a current generator coupled to the rotor and alignment assembly for aligning the rotor to face into the wind, a ground anchor and at least one ... | 02/14/1978 |
| 3997131 | Rotor means for an aircraft A rotor arrangement for an aircraft comprising two coaxially counter-rotatable rotators, each rotor being journaled freely rotatable about an imaginary axis of rotation common to both rotors on or through a fuselage part or a support member, each fuselage... | 12/14/1976 |
| 3957389 | Pumping apparatus and process characterized by gentle operation Pumps wherein smooth surfaced rotators cause propulsion of a delicate fluid without significant damage to the fluid. The pumps may be used as heart pumps, blood pumps, and pumps for all types of fluids in connection with the maintenance of life or biologi... | 05/18/1976 |
