Did You Know...
...that the Eveready Battery began as an invention called the "electric flowerpot," which was a tube with a battery and light bulb inside? The idea was to fasten this gizmo to the side of a flowerpot so it would illuminate the flowers from the bottom. The idea died on the vine and the businessman who licensed the flower pot, Conrad Huber, was left with a pile of useless tubes -- until he found a way to market them as batteries to light the world!
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| Number | Title | Issue Date |
| 4726188 | Motor utilizing buoyancy forces A motor utilizing, at least in part, buoyancy forces of different materials in a fluid is disclosed characterized by a piston assembly that requires only a single level fluid pool utilizing no pump to operate.... | 02/23/1988 |
| 4720976 | Method of power generation and its apparatus utilizing gravitation force and buoyancy The present invention relates to a method and apparatus for power generation which comprises a first cylinder and a second cylinder, a first float member and a second float member disposed in the first and second cylinders, respectively, and a lever arm p... | 01/26/1988 |
| 4691513 | Rotary power transducer system Method of and apparatus for generating energy from a rolling or swiveling float tank utilizing the buoyant force of water contained therein. The float tank is mounted upon a central pivot to continuously swivel therearound. A series of flotation devices a... | 09/08/1987 |
| 4599857 | Method of power generation and its apparatus utilizing gravitation force and buoyancy The present invention relates to an apparatus for the generation of power and its method comprising two cylinders, and pistons disposed in the cylinders, and a lever arm containing weighted balls disposed therein and connected to the pistons, whereby the ... | 07/15/1986 |
| 4497173 | Power transducer system Method of and apparatus for generating energy from a rocking float tank utilizing the buoyant force of water contained therein. The float tank is mounted to rock between first and second off center positions wherein the center of gravity of the water cont... | 02/05/1985 |
| 4415314 | Metering pump A fluid pump for location within a reservoir and which is operable with rise and fall of liquid within the reservoir. The pump comprises a tube of a resiliently deformable material, an abutment surface which is engaged by the tube and a float device which... | 11/15/1983 |
| 4309154 | Pumps operated by the rise and fall of water A pumping system uses flowing water to operate a pump or pumps intermittently, each pump having a vertically expansible chamber established by piston and cylinder members of which one is fixed and the other float supported. Each pump chamber is filled and... | 01/05/1982 |
| 4265599 | Hydropneumatic energy system A system for converting a constant pressure head of water into compressed air which may be utilized to transfer the potential energy of the pressure head to remote work sites.... | 05/05/1981 |
| 4218192 | Pressure source A pressure source to develop a stream of liquid under pressure as a consequence of the rise and fall of the surface of a body of water. The pressurizing means comprises an enclosure which bounds a chamber having a pair of portions at least one of which is... | 08/19/1980 |
| 4208875 | Apparatus for obtaining useful work from wave energy An apparatus and method for obtaining useful work from or with waves includes a buoyant body having a leading edge and a trailing edge, and a convex upper surface extending between the leading and trailing edges. The upper surface is configured with a gra... | 06/24/1980 |
| 4207741 | Power source using cyclically variable liquid level An hydraulic motor having as an energy source a cyclically controlled rising and falling level of liquid in a working tank in which is provided a piston element having a liquid-tight hollow chamber that is arranged to move vertically with the rising and f... | 06/17/1980 |
| 4184807 | Reversible hydraulic engine A hydraulic engine for transforming the energy of a flowing current of water into a pressure head of water. The engine is mounted on a platform supported by floats and fitted with a series of paddles linked by drive chains which pass about a pair of drive... | 01/22/1980 |
| 4158780 | Power generation systems in buoyant structures A power generation system for the generation of electrica power from wave motions of the sea comprising a spine on which a plurality of ducks are rockably mounted and for each duck a power generation assembly comprising a hydrostatic transmission having a... | 06/19/1979 |
| 4081962 | Dynamic wave energy extraction system A dynamic wave energy extraction system utilizing a suspended weight to extract energy from ocean waves. A spring-biased floating sheave is disposed to move with respect to a pair of guide posts attached to a ship. A cable having a submerged weight attach... | 04/04/1978 |
| 4074526 | Pressure source and systems incorporating it A pressure source for providing a stream of liquid at a substantial pressure. The pressure source includes pressurizing means such as a piston-cylinder assembly to which a force is applied to expel the contents thereof under pressure to form the stream. W... | 02/21/1978 |
| 4048512 | System for generating power from wave motions of the sea A power generating system for the generation of energy from the wave motions of the sea is buoyantly supported by the sea. The system comprises spine elements defining a spine on which ducks are rockably mounted, the system further including tension cable... | 09/13/1977 |
| 3961480 | Pressure source and systems incorporating it A pressure source for providing a stream of liquid at a substantial pressure. The pressure source includes pressurizing means such as a piston-cylinder assembly to which a force is applied to expel the contents thereof under pressure to form the stream. W... | 06/08/1976 |
| 3952517 | Buoyant ram motor and pumping system A buoyant ram motor comprising a hollow buoyant ram element movable within a housing into which liquid such as water is admitted in a manner applying a buoyant force to the ram and moving or lifting it up along the interior of the housing. After each powe... | 04/27/1976 |
| 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 |
