Did You Know...
...Daniel Webster invented a "bull plow" to pull out tree stumps. It didn't catch on because it was huge and required four oxen to pull it!
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| Number | Title | Issue Date |
| 7028636 | Rotatable bird feeder Disclosed herein are rotatable bird feeders. The bird feeders are composed of a generally planar surface having one or more containers positioned about the perimeter of the generally planar surface. In one embodiment, the containers have a first well coupled to a se... | 04/18/2006 |
| 7003947 | Gyro wave activated power generator and a wave suppressor using the power generator A gyro wave-activated power generator utilizing wave energy which has, as a component, a control moment gyro, and which comprises a floating body (1), a control moment gyro (5) supported by the floating body, and a power generator (10) connected... | 02/28/2006 |
| 6820420 | Solar-based power generating system A solar-based power generating system including an electrical alternator or generator for generating electrical power in which the alternator or generator is driven by a refrigerant circulating through a closed-loop heat transfer system including an evaporator expos... | 11/23/2004 |
| 6817180 | Gravity as a source of renewable energy The invention discloses a portable hydroelectric apparatus which converts the kinetic energy of water caused by gravity into electrical energy. This conversion is accomplished without the presence of a river or stream. A new type of buoyancy motor is disclosed which... | 11/16/2004 |
| 6772592 | Float dependent wave energy device Apparatus for converting energy contained in surface waves on a body of water to useful energy comprises a float from which is suspended a fully or effectively fully submerged inverted cup-shaped member having a closed top end and an open bottom end. Disposed within... | 08/10/2004 |
| 6764275 | Fluid displacement rotational assembly A fluid displacement rotational assembly includes a frame, a support structure supporting the frame for rotating an axle connected to the frame, chamber members coupled to the frame and each chamber member being arranged diametrically opposed by an associated one of... | 07/20/2004 |
| 6666024 | Method and apparatus for generating energy using pressure from a large mass A fluid, for example, air, is subjected to a high pressure while in a high pressure inducing vessel (101). The high pressure is due to a large mass, such as the ocean. The fluid is then cooled and directed into a depressurized vessel (107), such as a pres... | 12/23/2003 |
| 6644937 | Water powered pumping system with fluid link A water powered pumping system includes a leverage connected to a water source and moving upward and downward by using a water weight to produce a lever movement, a hydraulic pump pushed by the leverage to move reciprocally, and a water pump pushed by the... | 11/11/2003 |
| 5944480 | Buoyancy and gravitation motor A motor that combines buoyant and gravitational forces to create a highly efficient limitless source of energy comprises: a reservoir containing liquid; a vertical cylinder in communication with, extending from the liquid reservoir, containing liquid and ... | 08/31/1999 |
| 5372474 | Gravity-assisted rotation device An apparatus for gravity assisted rotational motion includes a frame and a axle supported on the frame. A plurality of hollow arms are rotatably supported on the axle. At the outer ends of each arm is mounted a hollow reservoir which can be selectively fi... | 12/13/1994 |
| 4698516 | Hydro-electric power plant A hydro-electric power plant specifically structured to operate in connection with a water reservoir supplied from a natural body of water such as an ocean, lake, etc. and which is structured to be at least partially self-sufficient while at the same time... | 10/06/1987 |
| 4667115 | Energy machine generating hydraulic energy An energy machine generating hydraulic energy by the use of a plurality of wheels driven around a table surface, each wheel operating in turn a lever for operating a double acting hydraulic piston for producing output hydraulic energy.... | 05/19/1987 |
| 4385497 | Propulsion system for water wheel A propulsion system for a water wheel of the type having a plurality of pontoons interconnected in diametrically opposed pairs by means of spokes which are slidably carried by the water wheel so that the pontoons on the downwardly moving side of the water... | 05/31/1983 |
| 4311918 | Wind powered generator with gravity assisted mechanical advantage booseter The wind powered mechanical and electric power generator, is a process and apparatus which uses the mechanical advantage of a lever arm to multiply the energy of a moving or mobile weight which is wind powered from a propeller drive, and converts by gravi... | 01/19/1982 |
| 4151431 | Permanent magnet motor The invention is directed to the method of utilizing the unpaired electron spins in ferro magnetic and other materials as a source of magnetic fields for producing power without any electron flow as occurs in normal conductors, and to permanent magnet mot... | 04/24/1979 |
| 3934964 | Gravity-actuated fluid displacement power generator A plurality of piston-sealed cylinders are secured in oppositely disposed units in spaced relationship to each other about the circumference of a rotational member having substantially horizontal axes of rotation. The rotational member and all cylinders a... | 01/27/1976 |
