Actor Marlon Brando has four patents, all named "Drumhead tensioning device and method."
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| Number | Title | Issue Date |
| 7261523 | Pump system for delivering pressurized liquid A pump system for providing a pressurized liquid comprising an elevated supply reservoir of a liquid at a first pressure; at least one pair of vertically reciprocating liquid transfer vessels (each of the transfer vessels having a force transfer assembly operatively... | 08/28/2007 |
| 7134283 | Sealed shaft gravity buoyancy energy system and method of use thereof A sealed-shaft gravity-buoyancy energy system and method of use thereof, wherein a wheel is powered by ball masses which fall under gravitational force, thereby causing the wheel to rotate. The ball masses are collected and inserted into a fluid shaft, wherein the f... | 11/14/2006 |
| 5970713 | Water engine A water engine having a rocking beam that includes a bucket. A reservoir is mounted on each end of the beam. The respective reservoirs are provided with a valved discharged opening which are alternatively actuated as the corresponding bucket is moved to i... | 10/26/1999 |
| 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 |
| 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 |
| 4372123 | Thermal-gravity engine A thermal-gravity engine is driven by a changing of the temperature of a vaporizable working fluid (55) in a closed-loop fluid system and the force of gravity operates on a reciprocating lever (12). One or more weight chambers (21), a storage chamber (24)... | 02/08/1983 |
| 4260902 | Fluid-driven rotary engine A fluid driven rotary engine of the water wheel type comprising a spoked water wheel rotatably mounted on a hollow stationary axle and having a set of water collection containers supported on the outer ends of hollow hub-mounted wheel spokes. Water or oth... | 04/07/1981 |
| 4246756 | 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... | 01/27/1981 |
| 4209990 | Gravity flow hydraulic device A hydraulic device driven by fluid flowing by the force of gravity provides a rotary driving force suitable for operating a fluid pump or a flywheel. A reciprocating balance beam is pivotally mounted and has a counterweight assembly affixed to one end and... | 07/01/1980 |
| 4203295 | Space reversible differential temperature engine The invention consists of a reversible differential temperature engine especially adapted to convert solar thermal energy into mechanical energy in the absence of gravity in space. This is achieved by reversible means which allow the alternate function of... | 05/20/1980 |
| 4132223 | Tracking system for solar energy collector A pivotally mounted solar energy collector is maintained oriented towards the sun by creating a continuing imbalance of the collector about its pivotal axis resulting in pivotal movement of the collector to track the sun. The imbalance is achieved by regu... | 01/02/1979 |
| 3994629 | Mechanism for tapping the surf energy A mechanism utilizing the energy of the surf including a gravitational bucket with a rack on the outside thereof. The rack engages a gear which drives a reciprocating water pump. The pump transports water to a tank for use later as a source of steady cont... | 11/30/1976 |