| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 318101000 | Starting and/or stopping | 9 |
| 20150084553 | SYNCHRONOUS TRANSFER CONTROL SYSTEM IN AN ARC RESISTANT ENCLOSURE - A synchronous transfer control system includes an arc resistant enclosure having a main housing having an open top portion and an arc plenum, the arc plenum having a closed front portion, a closed rear portion, and at least one open side portion, and a plurality of synchronous transfer control components housed within the main housing including: (i) a hard bussed first bus structured to be coupled to a first power source, (ii) a second power source, and (iii) a hard bussed second bus, wherein an output of the second power source is able to be selectively coupled to the second bus, wherein the first bus is able to be selectively and individually coupled to each of the motors, and wherein the second bus is able to be selectively and individually coupled to each of the motors. | 03-26-2015 |
| 318102000 | Sequential or successive starting and/or stopping | 5 |
| 20090218962 | CONNECTION OF AN ELECTRIC MOTOR TO A SUPPLY NETWORK - Method and arrangement for connecting an AC electric motor (M | 09-03-2009 |
| 20100164412 | METHOD AND SYSTEM TO START MULTIPLE AC MOTORS SUPPLIED BY A POWER CONVERTER VIA A COMMON AC BUS - A method to start at least two AC motors that are supplied from a common AC bus, which in turn is supplied from a power converter. At least one of the AC motors is an electrically excited synchronous motor including an excitation circuit. The synchronous motor is started first. During starting of remaining of the at least two AC motors a reactive power supplied by the power converter is determined and an increase of a field current or of a field voltage of the synchronous motor in linear dependence on the reactive power supplied by the power converter is determined. The increased field current or field voltage is applied to the excitation circuit of the synchronous motor. | 07-01-2010 |
| 20100171449 | Washing Machine Wiring to Reduce Mechanical Timer Contact Welding - A control circuit for a washing machine that avoids contact bounce short circuit failures is provided. A washing machine that utilizes an induction motor including a starting winding used to start rotation of the motor at the beginning of a cycle. Such washing machines require that the motor be operated in both directions during different cycles. To enable such operation, a mechanical timer uses a pair of single pole, double throw switches in a switching assembly to reverse the L1 and neutral connections to the starter winding. To avoid the contact shorting problem, the control wiring runs either the L1 or neutral side of the voltage source, or both, through the centrifugal switch to open the input contact(s) once the motor has reached its operating speed. Then, if the switching assembly has L1 and N contacts touching at the same time, it will not result in a dead short. | 07-08-2010 |
| 20130015787 | METHOD FOR HOT CONNECTING A MOTOR TO A VARIABLE SPEED DRIVEAANM DEVOS; ThomasAACI Carrieres sous PoissyAACO FRAAGP DEVOS; Thomas Carrieres sous Poissy FRAANM MALRAIT; FrancoisAACI Jouy sur EureAACO FRAAGP MALRAIT; Francois Jouy sur Eure FR - A method for connecting a second motor to a variable speed drive in parallel with at least one existing motor under load and controlled by the variable speed drive is provided. The method disconnects the existing motor from the variable speed drive and a state estimator calculates transient state of the existing motor including at least the speed of the existing motor based on a previously established load model. The method then connects the second motor to the variable speed drive and the second motor is operated using a suitable directive until the actual state of the second motor attains the calculated transient state of the existing motor at a given time. Upon attaining the calculated transient state, the existing motor is reconnected to the variable speed drive such that no current spike is generated in the aforementioned process. | 01-17-2013 |
| 20130038250 | FAN CONTROL SYSTEM - A fan control system includes a fan and a fan control circuit. The fan control circuit includes a connector, a control unit, a switch unit, and a delay unit. The control unit is connected to the connector to receive a rotation speed control signal, and connected to the fan. The switch unit is connected to the connector to receive a voltage signal, and connected to the control unit. The delay unit is connected to the connector to receive the rotation speed control signal, and connected to the switch unit. When the delay unit receives the rotation speed control signal, the delay unit outputs a control signal to turn on the switch unit after a time delay, the voltage is transmitted to the control unit through the switch unit, the fan operates, the control unit controls rotation speed of the fan according to the rotation speed control signal. | 02-14-2013 |
| 318103000 | Selective starting and/or stopping | 3 |
| 20090295312 | STARTING APPARATUS FOR AT LEAST TWO SYNCHRONOUS MACHINES - A starting apparatus is disclosed for at least two synchronous machines, which starting apparatus includes an exciter unit which is provided for each synchronous machine and is associated with the respective synchronous machine. Each exciter unit can be connected to the field winding of the associated synchronous machine. A superordinate control unit is provided, with the superordinate control unit being connected via a communication link to each exciter unit. Furthermore, the starting apparatus includes at least one stator feed unit and at least one switching device, which is provided for each stator feed unit and is associated with the respective stator feed unit, in which case the respective switching device can be connected to the associated stator feed unit, the respective switching device can be connected to at least one synchronous machine, and the switching devices can be connected to one another when there are a plurality of switching devices. The exciter units can be connected to one another via a ring communication link. Each stator feed unit can be connected to the ring communication link. Each stator feed unit can also be connected via a communication link to an associated switching device, and exciter units which are associated with the stator feed units can be each connected via a communication link to a switching device. | 12-03-2009 |
| 20130063053 | SECURING APPARATUS FOR FURNITURE DRIVE - Securing apparatus for at least one electrical furniture drive of a movable furniture part, wherein the securing apparatus prevents the simultaneous opening of moveable furniture parts which are at risk of colliding, wherein the securing apparatus has at least two—preferably three—control connections to which signal lines of sensors of movable furniture parts and/or signal lines of the at least one electrical furniture drive can be detachably fastened, wherein the actuation of the at least one electrical furniture drive of the moveable furniture part can be prevented when there is a risk of it colliding with a further moveable furniture part—which has been moved out of its closed position—by the configuration of the control connections. | 03-14-2013 |
| 20140184108 | MOTOR DRIVING SYSTEM - A motor driving system includes a first switch, a second switch, a third switch, a fourth switch, a first motor, a second motor, a third motor, and a fourth motor. The interconnections between all the switches allows the detection of any one of a number of motors as being unconnected, and allows control of all the motors individually, to avoid a dedicated switching system being necessary for each motor. | 07-03-2014 |
