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A portable partition for use in an automobile having a seat with a seat bench and a seat backrest.
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| Number | Title | Issue Date |
| 8134316 | Method for braking an AC motor A system for braking a motor. The system includes at least one resistor and a contactor connected to the at least one resistor and a motor. The system further includes a variable frequency drive electrically connected to the motor, wherein the variable frequency dri... | 03/13/2012 |
| 7436137 | Drive regenerative control system Provided is a drive regenerative control system of a drivee with a motor superior in torque and weight balance and suitable for miniaturization as the drive source. In a drive regenerative control system having a drive source with an electric motor, a drivee, a cont... | 10/14/2008 |
| 7368889 | Motor control apparatus and control method thereof A motor control apparatus supplying AC power to a motor having a plurality of motor windings having an inverting part including a bridge circuit having a plurality of switching units, and supplying the AC power to the motor; brake relays short circuiting the motor w... | 05/06/2008 |
| 7367409 | Latch mechanism for pivoting handle assembly of a power tool A latch mechanism for a power tool is disclosed, in which the power tool has a housing (3), a motor provided in the housing, an output shaft adapted to be caused by said motor to actuate a working member, and a handle assembly (2) adapted to pivot rela... | 05/06/2008 |
| 7342371 | System and method for detecting motor run condition A motor control system for detecting motor run condition comprises power switches for connection to an AC line for controlling application of AC power to the motor. An input receives a motor start command. A controller is connected to the input and controls operatio... | 03/11/2008 |
| 7290975 | Two-speed passenger lift and pump assembly therefor A passenger lift includes a lift platform that operates between a generally vertical stowed position in a motor vehicle, a substantially horizontal position at the height of the vehicle floor, and a position resting on the ground. The passenger lift is actuated by h... | 11/06/2007 |
| 7279858 | Drive regenerative control system Provided is a drive regenerative control system of a drivee with a motor superior in torque and weight balance and suitable for miniaturization as the drive source. In a drive regenerative control system having a drive source with an electric motor, a drivee, a cont... | 10/09/2007 |
| 7170245 | Motor power supply control apparatus A motor power supply including a DC supply part having a pair of supply terminals; an inverter having a pair of connection terminals respectively connected to the supply terminals thereof to receive DC power therefrom and to supply AC power to a motor, a breaking re... | 01/30/2007 |
| 7141944 | Device and method for controlling an electrical motor mounted on the crossarm of a bridge circuit Device for controling an electrical motor mounted on the crossarm of a bridge circuit whose motor current is controllable with semiconductor components formed in a first bridge branch by an electromagnetic switching device and in a second bridge branch by two serial... | 11/28/2006 |
| 7122982 | DC motor rotation information detecting device A rotation information detection device detects rotation information of a DC motor based on a surge component waveform superimposed on a voltage waveform between the terminals of the DC motor or a current waveform of the DC motor, a circuit is provided which supplie... | 10/17/2006 |
| 7071645 | Braking device for an electric motor, electrical apparatus provided with the braking device, and a method of braking A braking device for an electric motor of a power tool has a short circuit switch for short circuiting an armature winding of the electric motor during a braking process, the short circuit switch for controlling its switch condition having a control input, a control... | 07/04/2006 |
| 7064507 | Managing wheel skid in a locomotive The present invention is directed to the termination of the occurrence of wheel slip/skid and prediction and prevention of the onset of wheel slip/skid in a locomotive. In one configuration, a lookup table of adhesion factors is used to predict the occurrence of whe... | 06/20/2006 |
| 7034477 | Domestic electrical appliance including an electric motor Domestic electrical appliance, including a universal electric motor powered by direct current via an electrical circuit linked to a DC electrical voltage source, said circuit including a chopper arrangement, including a capacitor in parallel with the DC voltage sour... | 04/25/2006 |
| 7001660 | Images in solids surfaces The present invention relates to systems and methods for forming images in solid surfaces, and to solid surfaces containing an image. In particular, the present invention provides systems and methods for forming images in polymeric materials, and polymeric materials... | 02/21/2006 |
| 6998804 | Electric motor with electronic brake A retarded electric motor designed as a series motor or an asynchronous motor having a squirrel cage rotor. A valve is provided for switching between motor operation and braking operation. During motor operation the motor is operated in a known configuration as seri... | 02/14/2006 |
| 6906493 | Electronic brake for motor In an electronic system, motor braking is accomplished by applying direct current (DC) voltage, developed across a capacitive element during a run mode operation, across terminals of an alternating current (AC) or an induction motor. While the motor is ON, i.e. duri... | 06/14/2005 |
| 6867561 | Electrical machine An electrical machine comprises a rotor without windings, a stator having an armature winding 24, 25 and a field winding 10 for generating a magnetomotive force in a direction extending transversely of the magnetomotive force generated by the armature ... | 03/15/2005 |
| 6847178 | Method and apparatus for dynamic braking of a barrier operator A method and apparatus for controlling a barrier movement operator comprising a controller that dynamically controls barrier operator braking to electronically slow, stop or reverse the motor in the barrier operator controller. The apparatus includes a source of ele... | 01/25/2005 |
| 6525495 | Electronic device for controlling the electromagnetic self-braking current in reversible rotating electric commutator machines The present invention regards an electronic device for controlling the electromagnetic self-braking current in reversible rotating electric commutator machines, fitted with an inductor winding and an armature winding, in which there are reversing means to... | 02/25/2003 |
| 6483268 | DC motor brake An electronic brake system for D.C. motors that utilize an electronic switching device in parallel with the motor upon the removal of a D.C. source. A bias circuit is connected to the switching device to keep it in the OFF condition while the D.C. source ... | 11/19/2002 |
| 6448727 | Mains braking device for a line-powered power tool A mains braking device for a line-powered power tool includes a circuit arrangement with a two-pole switch which switches between the motor mode and the braking mode. The inventive braking device further includes an electronic power circuit breaker or tri... | 09/10/2002 |
| 6356833 | Vehicle speed control system using wireless communications and method for controlling the same Disclosed a vehicle speed control system using wireless communications, the system including a driving state detecting unit for detecting a driving state and outputting corresponding signals; a transmitter/receiver for outputting low-strength signals; an ... | 03/12/2002 |
| 6353297 | Series motor A series motor with commutator is disclosed which is especially suited as universal motor for a braked power tool. The series motor comprises a switch for switching between a motor mode and a braking mode, wherein, in motor mode, at least one field windin... | 03/05/2002 |
| 6175204 | Dynamic brake for power door The invention is a dynamic brake for a power door which is moved by an electric motor having at least two terminals. The motor is energized by a pulse width modulated door drive amplifier connected to a first power line and a second power line. The door d... | 01/16/2001 |
| 6104155 | Controlled braking device for electric motors and in particular portable tools An electric motor (10,110,210) comprises a TRIAC (16, 116, 216) for controlling the application power to the motor and a switch (18,118,215a) for controlled cut-off of the power supply. Upon operation of a switch (15b, 115B, 215B) for short-circuiting of ... | 08/15/2000 |
| 6094025 | Controlled braking device for electric motors and in particular portable tools An electric motor (10, 110, 210) is coupled to a TRIAC (16, 116, 216) for controlling the application of power to the motor from a power supply (13, 14; 113, 114; 213, 214) and a switch (18, 118, 215a) for controlled cut-off of the power supply. Upon oper... | 07/25/2000 |
| 5969303 | Emergency stop circuit for a direct current elevator drive An emergency stop circuit for an elevator drive includes an emergency stop control (7) that selectively varies the current flowing in a field winding (4) of a direct current drive motor (M). During an emergency stop, the motor (M) operates as a generator ... | 10/19/1999 |
| 5825143 | Method and apparatus for slowing back spin of a rod string of a progressing cavity pump powered by an electric motor when power is lost A method and apparatus for slowing back spin of a rod string of a progressing cavity pump powered by an electric motor when power is lost. Pulse direct current voltage into the windings of the electric motor powering the progressing cavity pump to magneti... | 10/20/1998 |
| 5814958 | Method and apparatus for the electronic control of electric motor driven golf car A system is provided for controlling a DC motor which is constructed to propel a golf car. The motor is a shunt wound motor having independently excited armature and field windings. The basic input to the armature of the motor is supplied through a pulse ... | 09/29/1998 |
| 5793175 | Performance event sensing for control of electric motor driven golf car A system is provided for controlling a D-C motor which is constructed to propel a golf car. The motor is controlled to provide performance according to a predetermined field current map which calls for a particular performance response to specified perfor... | 08/11/1998 |
| 5757154 | Electric motor braking circuit arrangement A motor braking circuit arrangement, for use with a series/universal motor and a power supply for supplying power to the motor, including two separately actuable switches electrically interconnecting a separate braking winding with the motor to effect bra... | 05/26/1998 |
| 5648706 | Electric brake for commutated motor A series motor for an appliance or tool, such as a circular saw, includes a regenerative braking circuit having brake windings in addition to the run windings. One of the brushholder assemblies includes a push-away feature for separating one of the brushe... | 07/15/1997 |
| 5642023 | Method and apparatus for the electronic control of electric motor driven golf car A system is provided for controlling a DC motor which is constructed to propel a golf car. The motor is a shunt wound motor having independently excited armature and field windings. The basic input to the armature of the motor is supplied through a pulse ... | 06/24/1997 |
| 5449992 | Braking circuit for an electric motor A braking circuit for an electric motor includes a braking device for being connected in a circuit for braking the electric motor, a braking switch including first and second changeover switches for switching between a motor mode and a braking mode, and a... | 09/12/1995 |
| 5332954 | Optimal DC motor/controller configuration Optimal constructions for two motor/controller configurations are disclosed. The controller structure includes an H-bridge for controlling field current using synchronous-rectification of MOSFET devices, and a circuit for chopping the armature current usi... | 07/26/1994 |
| 5311108 | Control system for unidirectional motor having improved dynamic braking Motor control system for unidirectional series DC electric motor having improved dynamic braking performance for smoothly, rapidly and predictably stopping the motor armature so that any operated devices are similarly stopped at a predetermined location. ... | 05/10/1994 |
| 4751414 | Dynamic braking circuit for universal motor A dynamic braking circuit for a universal motor is disclosed. A switching mechanism is used to reverse the orientation of the series field winding with respect to the rotor when power is removed. Because the rotor acts as a generator when power is removed... | 06/14/1988 |
| 4672277 | Elevator motor control A method and apparatus for controlling a direct current motor of an elevator during emergency braking by conducting a current generated by the motor through a braking resistor are disclosed, in which a semiconductor switch connects the braking resistor ac... | 06/09/1987 |
| 4422022 | Speed control for truck A speed control for a DC motor drive having regenerative braking and a field reversing control, has a field current feedback circuit which includes a modifier to change the feedback signal in accordance with the saturation curve of the field to provide a ... | 12/20/1983 |
| 4284936 | Chopper type propulsion system with low speed electrical braking capability for traction vehicles A propulsion system for an electrically driven traction vehicle includes a chopper, a d-c traction motor, and means effective when the system is operating in a motoring mode for connecting the chopper in series with the armature and the field windings of ... | 08/18/1981 |
