Celebrity Inventors
Actor Marlon Brando has four patents, all named "Drumhead tensioning device and method."
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| Number | Title | Issue Date |
| 7262533 | Energy transfer apparatus A motor and a generator both comprising a rotor and a stator, wherein said rotor and said stator of both said motor and said generator can rotate about a common axis, and wherein both said stators are coupled, and both said rotors are coupled, for one to induce rota... | 08/28/2007 |
| 7223200 | Hybrid-vehicle drive system and operation method with a transmission A hybrid-vehicle drive method and system includes an internal combustion engine that includes an output shaft, a first electric motor/generator connected to the output shaft of the internal combustion engine via a power distribution mechanism, a wheel drive shaft co... | 05/29/2007 |
| 7205730 | Article transport vehicle The invention provides an article transport vehicle that includes: a vehicle body; a first wheel that supports the vehicle body; a second wheel that is disposed spaced apart from the first wheel in a fore-and-aft direction, and that supports the vehicle body; a firs... | 04/17/2007 |
| 7166049 | Vehicle drive and a control method for a vehicle drive A drive and a method to control the drive of an agricultural vehicle, especially of a tractor, is described. The drive includes a combustion engine (M) and an infinitely variable electro-mechanical torque split gear. To avoid dissipation of reactive power the... | 01/23/2007 |
| 7166050 | Powertrain with an electrically-variable transmission A powertrain incorporates two electrical units, two planetary gearsets in a radially-stacked package to provide a shortened length of the transmission. The output members of the electrical units are interconnected by a gear mechanism, which is drivingly connected wi... | 01/23/2007 |
| 7026780 | Method for stabilizing the movement of an articulated chain of a chain block, especially to prevent the formation of a resonance oscillation of the chain, and a chain block apparatus The invention concerns a method for stabilizing the motion of an articulated chain of a chain block, especially to prevent the formation of resonance oscillation of the chain, in which an articulated chain is led across a polygonal chain wheel with non-uniform pitch... | 04/11/2006 |
| 6962433 | Magnetic stirring apparatus having low rotational speeds A magnetic stirring apparatus for achieving low rotational speeds is provided. The apparatus including a base for supporting a vessel containing a magnetic stir bar and a liquid to be stirred; a magnetic field generator for generating a rotating magnetic field to ro... | 11/08/2005 |
| 6942067 | Portable emergency drive for an elevator An emergency drive is a toothed element such as a gear rim, is arranged on a traction sheave of an elevator drive. During emergency operation, the gear rim is driven by means of a pinion of an auxiliary engine. The engine is installed on the elevator drive only duri... | 09/13/2005 |
| 6759818 | Electromotive actuator and method for controlling the same To realize structure simplification and reduction in manufacturing cost without lowering power transmission efficiency and reliability. The present invention includes a first motor 5 and a second motor 6, and a lead 2 of a ball screw 12 i... | 07/06/2004 |
| 6680589 | Relay contact monitoring device A device for monitoring the state of relay contacts is especially useful for controlling motor windings in air conditioning systems. When a first relay switch, which is operative to supply power to a first motor winding does not open as desired, a switch ... | 01/20/2004 |
| 6583590 | String drawing device for a racquet A string drawing electrical device for a racquet has a casing, a string holder, an actuating device and a control unit. The string holder is rotatably attached to a panel of the casing. The actuating device is mounted in the casing and provides two functi... | 06/24/2003 |
| 6361600 | Film forming apparatus and film forming method A drive pulley is disposed to a driving motor. A plurality of follower pulleys are disposed to a rotating shaft of a spin chuck that vacuum sucks a substrate. A belt is passed from one follower pulley to the drive pulley. Belts are passed from the other f... | 03/26/2002 |
| 6300732 | Dual power unit for movement of a back and footrest in armchairs and the like The dual power unit includes an elongate housing having mounted therein adjacent opposite ends thereof two power units, one of which is drivingly connected to the movable back of an armchair, and the other unit is connected to a movable footrest of an arm... | 10/09/2001 |
| 6208096 | Optimized winding drive In a tape transport for recording and/or reproducing signals by means of a recording medium using separate winding motors for driving the winding plates, the drive of the winding motors servo units is constructed as open-loop control devices and/or closed... | 03/27/2001 |
| 6157147 | Power transmission apparatus A power transmission apparatus manipulates the transmission of power of the mechanical and/or electrical form. The power transmission apparatus is constructed integrating together a power-transmitting device and a transmission interaction redistributing m... | 12/05/2000 |
| 6005297 | Power output apparatus and method of controlling the same A power output apparatus 110 includes a planetary gear 120 having a planetary carrier, a sun gear, and a ring gear, an engine 150 having a crankshaft 156 linked with the planetary carrier, a first motor MG1 attached to the sun gear, and a second motor MG2... | 12/21/1999 |
| 5936312 | Power output apparatus and method of controlling the same The object of the present invention is to carry out control and enable an engine to output a desired power, thereby preventing unexpected charge or discharge of storage battery means. A power output apparatus of the present invention sets energy Pe to be ... | 08/10/1999 |
| 5804934 | 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... | 09/08/1998 |
| 5701066 | Control system for an induction motor A control system for an induction motor of the present invention independently commands the torque current component and the exciting current component of a stator current group supplied to the stator of an induction motor so as to feed-back control the a... | 12/23/1997 |
| 5606235 | Industrial robot with integrated reduction gear units An industrial robot is provided with a plurality of elements articulated to each other, whose rotation is driven by respective electric motors by reduction gear units which are integrated in the structure of these elements.... | 02/25/1997 |
| 5537011 | Method and apparatus for promoting even wear in a multiple-motor drivetrain An invention is disclosed which promotes even wear within a multiple-motor drivetrain. In one embodiment of the invention, a vehicle drivetrain includes two motors. The total torque to be provided by the motors is partitioned between the motors such that ... | 07/16/1996 |
| 5493185 | Method for animating motor-driven puppets and the like and apparatus implementing the method A method and apparatus for animating motor-driven puppets includes drive units for individual parts or segments of the puppets, a manual input control system for controlling the drive units and generating control signals, and a computer having a memory in... | 02/20/1996 |
| 5374879 | Omni-directional and holonomic rolling platform with decoupled rotational and translational degrees of freedom A wheel assembly includes a support, a cage rotatably mounted on the support and having a longitudinal rotation axis, a first ball wheel rotatably mounted in the cage and having a rotation axis orthogonal to the rotation axis of the cage, and a second bal... | 12/20/1994 |
| 5331266 | Cooperative differential drive system A cooperative differential drive system (20) for use in material handling and flight control and guidance systems, and the like. The drive system (20) may be employed in application that require high resolution task repeatability capabilities and the exec... | 07/19/1994 |
| 5134346 | Apparatus for driving a spindle of an electroerosive machine The driving apparatus for the rotation of the spindle or the work piece pallet of an electroerosive machining device comprises two electric motors which drive e.g. the spindle to a rotational movement by means of two gear boxes and a plurality of gear whe... | 07/28/1992 |
| 5019755 | Electric motor drive system An electric motor drive system having a first electric motor, a first drive shaft to which the first electric motor is coupled, a second electric motor having a higher power rating than the first, a second drive shaft to which the second electric motor is... | 05/28/1991 |
| 4885698 | Overload prevention apparatus for jacking system of offshore structures An overload prevention apparatus for a jacking system of a rack and pinion type for use in offshore structures is disclosed. Each of the pinions is provided with a torque meter and tachometer for detecting a relative position between the pinion and the ra... | 12/05/1989 |
| 4760314 | Rotation controller for a differential actuator A rotation control apparatus for a differential actuator includes two induction motors and a differential mechanism for producing a constant torque on its output shaft based on the differential speed of the induction motors. The appartus includes two inve... | 07/26/1988 |
| 4591772 | Load positioning system with gravity compensation A load positioning system with gravity compensation has a servo-motor (12), position sensing feedback potentiometer (38) and velocity sensing tachometer (42) in a conventional closed-loop servo arrangement to cause lead screw (14) and ball nut (20) to ver... | 05/27/1986 |
| 4525655 | Two stage electric drive An electric motor drive system having a first direct current electric motor, a first drive shaft to which the first electric motor is coupled, a second direct current electric motor having a higher power rating than the first, a second drive shaft to whic... | 06/25/1985 |
| 4424473 | Drive apparatus for an industrial robot An industrial robot is disclosed, which utilizes three like drive units for controlling movement about the three primary axes of rotation. Each drive unit comprises a pair of electrical stepping motors, which act through a differential gear train to contr... | 01/03/1984 |
| 4289996 | Actuators A powered linear actuator is provided primarily for releasing stores from aircraft, having dual closed loop servo motor systems driving a screw jack. The dual motors, which have samarium cobalt permanent magnets, drive the screw jack through differential ... | 09/15/1981 |
| 4219764 | Apparatus for use with a motor drive An apparatus is provided for use with a motor drive for cancelling a reaction energy of a drive motor upon rapid starting or sudden stop. The apparatus comprises a revolving member adapted to be operatively connected with the rotor of the drive motor. The... | 08/26/1980 |
| 4173029 | Protective circuit for selectively applying power to a motor A protective circuit is described for selectively applying power to a motor. The circuit includes a power switch which closes and opens to apply and remove power from the motor, and a control for diverting reactively inducted motor current from the power ... | 10/30/1979 |
| 4103210 | Draw twisting machine A draw twisting machine is provided with a plurality of synchronous motors which drive respective draw rollers. The synchronous motors are supplied with electrical power from an A.C. generator having a variable frequency output. The A.C. generator is driv... | 07/25/1978 |
| 4093896 | Speed control for rotatable element driven by direct current motors Disclosed herein is a control comprising a rotatably supported wheel, a first direct current motor, means drivingly connecting the first direct current motor to the wheel with a first drive ratio, a second direct current motor, means drivingly connecting ... | 06/06/1978 |
| 4087731 | Control system for moving a large machine along a single axis A control system for moving a large machine along a single axis. The control system includes first and second position loop servo systems to drive at least respective first and second motors to move respective first and second sides of the machine in the ... | 05/02/1978 |
| 4035705 | Fail-safe dual channel automatic pilot with maneuver limiting Two substantially identical servo channels, coupled through a differential mechanism, position an attitude control surface of an aircraft in response to a common command signal applied to both channels. The common command is coupled to each channel throug... | 07/12/1977 |
| 3940677 | Direct-current stepping motor drive system A motor drive system including a direct-current motor arranged in tandem with a stepping motor. The stepping motor is energized by conventional means. The direct-current motor is energized by a constant-current drive means, which is responsive to signals ... | 02/24/1976 |
