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8760087 Energy-efficient actuator system  
What is described is an actuator system (2) comprising at least one actuator (29, 29′) and an associated control system (8) which is designed for at least two operating modes, at least one of...
8760088 Electromagnetism-torque friction-balancing truckle for mobile medical devices  
A truckle for a mobile medical device is provided. The truckle includes at least one electromagnetism torque balancing motor mounted on the truckle and configured to balance out friction generated...
8648553 Control of heavy machines  
The present invention relates to a system for controlling rotational speed on a rotating process machine (P), which for example is a turbine or a propeller, where the rotating process machine (P)...
8648551 Device for continuously reorienting a solar panel  
A system and method are provided for continuously reorienting a solar panel array while maintaining a substantially stationary footprint for the solar panel. A cylindrically shaped knuckle is...
8618752 System, architecture, and method for minimizing power consumption and increasing performance in electric vehicles  
An electric vehicle accomplishes speed changes through the use of electronically controlled, multiple electric motor configurations that are coupled to an output drive shaft instead of a speed...
8584459 Engine induction system  
A forced induction system for an engine comprising a compressor for increasing the pressure of gas into the engine and a turbine arranged to be driven by engine exhaust gas. The system further...
8461783 Electric drive unit for a water-bearing domestic appliance  
An electric drive unit for a water-bearing domestic appliance having a converter to provide a supply voltage from a multiphase voltage system; a control device to control the converter in order to...
8274244 Actuator system and method for extending a joint  
An actuator system for assisting extension of a biological joint is provided with a motor assembly, a rotary-to-linear mechanism, and an extension stop. The rotary-to-linear mechanism includes a...
8130478 Power limiting system for multiple electric motors  
A power limiting system for multiple electric motors includes an electrical power generating component, such as an alternator, and a plurality of motor controllers connected to an electrical bus....
8058823 Actuator system with a multi-motor assembly for extending and flexing a joint  
An actuator system for extending and flexing a joint, including a multi-motor assembly for providing a rotational output, a rotary-to-linear mechanism for converting the rotational output from the...
7948203 Device for the control of a smooth starting or ending of a three phase current motor, so-called soft starter  
An arrangement for the control of a soft starting or stopping of a three phase current motors (1), a so-called soft starter, is furnished for starting of heavy mechanical, electrical, or hydraulic...
7699731 Mechanism of motor reduction with variable regidity and rapidly controllable  
A transmission mechanism between two or more shafts of devices that interact or could possibly interact with people. The transmission mechanism has a particular application to the sector of...
7583036 Electrically driven vehicle  
In an electrically driven vehicle having a controller, the vehicle has a steering angle sensor for outputting a detected value of a steering angle of the vehicle, the controller includes a first...
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...
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...
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...
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...
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...
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...
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...
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...
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...
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...
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...
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)....
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...
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...
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...
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...
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...
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...
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...
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,...
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...
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...
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...
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...
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...
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...
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...
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...
RE30091 Automatically guiding workpieces through a machine  
Automatic guiding apparatus has first and second drive wheels which are driven from a common source for effecting feeding of a workpiece in a straight line through a machine. For effecting...
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...
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,...
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...
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...
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...
3925713 Automatically guiding workpieces through a machine  
Automatic guiding apparatus has first and second drive wheels which are driven from a common source for effecting feeding of a workpiece in a straight line through a machine. For effecting...
3911336 Plural motor drive including a servo motor control system  
The present invention relates to a servo motor control system in which an electric motor is instantaneously energized by movement of a relatively weak servo motor of the type normally actuated by...
3833847 ANTI-BACKLASH SERVOMOTOR DRIVE SYSTEM  
A two servomotor drive system wherein the servomotors generate (1) opposing torques at or near standstill to take up backlash in a rack and pinion drive, and (2) additive torques at other...

Matches 1 - 50 out of 264 1 2 3 4 5 6 >