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Actor Marlon Brando has four patents, all named "Drumhead tensioning device and method."
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| Number | Title | Issue Date |
| 7952306 | Power system with multiple generator units A method of operating a power system is provided. The method may include running one or more of a plurality of generator units that each include a power source, a first electric generator, and a second electric generator. Additionally, the method may include supplyi... | 05/31/2011 |
| 7876061 | Power system with multiple generator units A method of operating a power system is provided, the power system having power-system controls. The method may include automatically setting a priority ranking for a plurality of generator units of the power system with the power-system controls based at least in p... | 01/25/2011 |
| 7531974 | Apparatus and method for controlling a motor A motor control device is disclosed that reduces the shock caused by torque increase during switching output of a motor's power generator from PWM wave voltage driving to square-wave voltage driving. Switching of PWM wave voltage driving and square-wave voltage driv... | 05/12/2009 |
| 7402968 | Field winding synchronous generator-motor A field winding synchronous generator-motor includes: a power conversion section that is connected to an electric rotating machine and operating as a generator-motor, and that controls the electric rotating machine; a compensation amount storage section that stores ... | 07/22/2008 |
| 7301310 | Excitation controlled synchronous permanent magnet machine The present invention provides an apparatus and methods for providing constant voltage from a permanent magnet generator at varying prime mover speeds or under varying loads. A constant voltage permanent magnet generator includes a housing, a magnetized rotor, a pri... | 11/27/2007 |
| 7288909 | Electrical vehicle controller The maximum frequency and the minimum frequency are extracted from frequencies corresponding to respective axle speeds. The minimum frequency is subtracted from the maximum frequency to achieve a first frequency deviation, and also the first frequency deviation is i... | 10/30/2007 |
| 7245030 | Integrated generator and transformer and associated methods An electrical power generating apparatus (20) may include a housing (22), an electrical generator (24) within the housing, and a step-up transformer (30) within the housing and connected to the electrical generator. A turbine (26) ... | 07/17/2007 |
| 7227338 | Fixed frequency electrical generation system with induction coupler and use thereof in an aircraft A fixed frequency electrical generation system includes an induction coupler. The system includes an electricity generator with no rings or brushes, and an induction speed regulator, mechanically coupled, so as to transform mechanical energy input from a shaft rotat... | 06/05/2007 |
| 7204090 | Modulated current gas turbine engine starting system A method and an apparatus for starting a gas turbine engine under various conditions are used to distribute a varying total amount of electric power to at least one of a starter, a fuel heater and an oil heater while providing fuel. ... | 04/17/2007 |
| 7151355 | Electric motor driving system, electric four-wheel drive vehicle, and hybrid vehicle An electric four-wheel drive vehicle includes: an internal combustion engine; a generator for outputting DC electrical power; an inverter for converting DC electrical power, output from the generator, into AC electrical power; and an AC electric motor, which is driv... | 12/19/2006 |
| 7129593 | Low-energy storage fast-start uninterruptible power supply method An uninterruptible power supply system has standby and backup modes and can change to backup mode upon detection of a grid fault. In both modes an alternator rotates at synchronous speed so that backup mode capability is ready. An energy storage unit through a DC-AC... | 10/31/2006 |
| 7122994 | Control apparatus for a starter/generator system A control apparatus (202) for a starter/generator (110) of an aircraft electrical power system is provided. During a start mode of operation, AC power is provided by the control apparatus (202) to an exciter stator (114) of the starter/ge... | 10/17/2006 |
| 7109670 | Motor drive with velocity-second compensation An apparatus for use with a signal generator and a motor controller includes a velocity compensator, an adjustor, and a velocity regulator. The signal generator provides a reference velocity signal, and the motor controller receives an output signal and uses the out... | 09/19/2006 |
| 7084609 | Alternator controlled rectifier A system and method for controlling the voltage output of an alternator is disclosed. The system includes an alternator having a rotor, which has a field winding, a stator having a plurality of phases, a rectifier bridge connected to the plurality of phases, at leas... | 08/01/2006 |
| 7062382 | Video enhanced stability control in road vehicles A stability control system for road vehicles comprising a limit handling assistance controller which uses video lane detection measurements in conjunction with vehicle dynamics information, including inertial brakes and steering measurements to control vehicle EPS a... | 06/13/2006 |
| 7032696 | Electric vehicle A method for carrying out a boosting operation includes detecting that a boosting operation has been carried out for making a current value of an electric motor larger than a normal full open throttle value, detecting that an electric motor has not rotated, detectin... | 04/25/2006 |
| 7015662 | Engine operated machine The invention makes an output sharing of an engine and an electric motor proper so as to suitably drive a load. When a throttle opening degree variation amount ΔV is within a ΔV1, an engine E can drive a power generator G at a rated revolution speed. A swit... | 03/21/2006 |
| 6998726 | Method and system for providing single-phase excitation techniques to a start exciter in a starter/generator system A system and method is provided for starting a prime mover coupled to a synchronous starter/generator. The system includes an exciter converter that provides a non-fundamental only signal to a field winding of an exciter of the synchronous generator. The non-fundame... | 02/14/2006 |
| 6940251 | Decoupling of cross coupling for floating reference frame controllers for sensorless control of synchronous machines A synchronous motor controller and method of controlling a synchronous motor without using rotor position sensors are provided. In a floating synchronous reference frame controller, phase currents are measured and a current Park vector is determined. The error betwe... | 09/06/2005 |
| 6911742 | Method and apparatus for turbine/alternator on common shaft during start-up An electrical system for a turbine/alternator comprising a gas driven turbine and a permanent magnet alternator rotating on a common shaft includes an inverter circuit connectable either to an output circuit or the stator winding of the alternator. A control circuit... | 06/28/2005 |
| 6909199 | Method and apparatus for compensating output voltage fluctuations of turbine/alternator on common shaft An electrical system and method for a turbine/alternator comprising a gas driven turbine and a permanent magnet alternator rotating on a common shaft includes an inverter circuit connectable either to an output circuit or the stator winding of the alternator. A cont... | 06/21/2005 |
| 6909263 | Gas turbine engine starter-generator exciter starting system and method including a capacitance circuit element A rotating electrical machine, such as an aircraft starter-generator, that includes an exciter that has its stator windings supplied with electrical power from a power supply. One or more switches are electrically coupled between the exciter stator winding and the p... | 06/21/2005 |
| 6825630 | Machine tool, tool, and tool holder A longer life, low cost tool and tool holder enabling change of posture with respect to a spindle, having a high machining accuracy of a workpiece, and resistant to generation of vibration or heat, provided with a working tool for processing a workpiece, a motor hav... | 11/30/2004 |
| 6819999 | Multiple control loop acceleration of turboalternator previous to self-sustaining speed A method for controlling the acceleration of a turbo-generator previous to self-sustaining speed. ... | 11/16/2004 |
| 6583592 | Control apparatus for hybrid vehicle A control apparatus enhances charge and discharge performance of a main battery in a low temperature environment, extends the life of the main battery and improves the reliability of the whole system. The control apparatus is for a hybrid vehicle having a... | 06/24/2003 |
| 6545444 | Device and method for utilizing a monopole motor to create back EMF to charge batteries A back EMF monopole motor and method using a rotor containing magnets all of the same polarity and in a monopole condition when in momentary apposition with a magnetized pole piece of a stator having the same polarity, said stator comprised of a coil with... | 04/08/2003 |
| 6456021 | Rotating variable frequency transformer with high voltage cables A system for transferring power between a first electrical system and a second electrical system comprises a rotary transformer (105) comprising a rotor (110) having rotor windings and a stator (112) having stator windings. The windings of at least one of... | 09/24/2002 |
| 6373206 | Motor drive control apparatus An electrical motor having a drive function and a power generating function is directly connected to an engine mounted on a vehicle. The vehicle has a starter connected to the engine. A motor control means for controlling the drive of the motor in coopera... | 04/16/2002 |
| 6313592 | Method for controlling a motor vehicle having an electric drive mechanism The invention relates to a method for controlling a motor vehicle having electric drive mechanism, especially a city autobus, in which one or more wheels are driven by one electric motor and which is provided with an electric brake and a control circuit, ... | 11/06/2001 |
| 6087791 | Control apparatus for internal combustion type electric locomotive To obtain a control apparatus for a Diesel-electric locomotive that harmonizes an engine power with a torque command of an induction motor, which is a load of an engine, in the Diesel-electric locomotive and avoids an overload of the engine. A cooperative... | 07/11/2000 |
| 6035626 | Gas turbine starter assist torque control system An electronic control system for regulating the amount of torque applied by a starter/generator to a gas turbine engine during startup. The control system senses engine speed, compares the engine's actual acceleration with a predetermined acceleration, an... | 03/14/2000 |
| 6037728 | Electrical braking and energy storage for moving vehicles A system for electrical braking and the storage for reuse of the braking energy is disclosed using alternating current (AC) rather than direct current (DC) generators coupled to the wheels of the vehicle to be braked. Upon braking, the AC generators feed ... | 03/14/2000 |
| 5905346 | Power output apparatus and method of controlling the same A power output apparatus (20) of the present invention includes a clutch motor (30), an assist motor (40), and a controller (80) for controlling the clutch motor (30) and the assist motor (40). The clutch motor (30) includes an outer rotor (32) linked wit... | 05/18/1999 |
| 5801499 | Control system for a vehicular drive unit A control system for a vehicular drive unit that includes an engine, a motor-generator connected to the output shaft of the engine and which acts as both a motor and a generator, a battery for storing the energy recovered by the motor-generator as electri... | 09/01/1998 |
| 5789881 | Power source control apparatus for hybrid vehicles A power source control apparatus for parallel and series hybrid vehicles is provided. The power source control apparatus determines a required torque of a power source consisting of a generator-motor and an internal combustion engine based on a parameter ... | 08/04/1998 |
| 5789882 | Vehicle control apparatus adapted to select engine-or motor-drive mode based on physical quantity reflecting energy conversion efficiencies in motor-drive mode A drive control apparatus for an automotive vehicle having an electric motor and an engine operated by combustion of a fuel, the drive control apparatus including a drive source selecting device for selecting an engine drive mode or a motor drive mode on ... | 08/04/1998 |
| 5767637 | Controller for turboal ternator A speed controller for a generator having a rotor includes a speed control input port for receiving a speed command signal, a proportional gain stage electrically connected to said speed control input port for amplifying the speed command signal to create... | 06/16/1998 |
| 5731643 | Stator cooling assembly An induction motor includes a stator defining stator inner and outer diameters extending about a longitudinal axis, the stator includes a plurality of windings extending longitudinally and circumferentially between the stator inner diameter and the stator... | 03/24/1998 |
| 5680019 | Reverse proportional voltage adjusting circuit system An adjusting motor is connected in series with a load and power supply to thereby adjust the voltage across the load, the speed of the motor being responsive to changes in the load voltage, and the load voltage in turn being adjusted as a result of change... | 10/21/1997 |
| 5642021 | Method and system for controlling an alternator to optimize direct current output A method and system for maximizing the output of an alternator in an automotive vehicle. An alternator is provided having a first rectifier connectable to a first output of the alternator to form a first winding configuration and a second rectifier connec... | 06/24/1997 |
