Class / Patent application number | Description | Number of patent applications / Date published |
310245000 | Slidable brush | 19 |
20090212656 | ELECTRIC MOTOR - An electric motor | 08-27-2009 |
20100133950 | BRUSH HOLDER APPARATUS, BRUSH ASSEMBLY, AND METHOD - Devices and methods of use for brush holder assemblies are disclosed. Brush holder assemblies including a mounting block and a brush holder are disclosed. Also illustrated is a brush holder assembly including a first portion in sliding engagement with a second portion. In some embodiments the brush holder includes a channel, such that at least a portion of the mounting block is disposed within the channel of the brush holder. | 06-03-2010 |
20110043073 | DRIVE UNIT - The invention relates to a drive unit, particularly a geared motor for windshield wipers, window lifting devices, or the like, of a motor vehicle, having a gear in a gear housing ( | 02-24-2011 |
20110187225 | ELECTRIC MACHINE HAVING AT LEAST TWO PAIRS OF CARBON BRUSHES - An electric machine has at least two pairs of carbon brushes made up of one plus and one minus carbon brush, which interact with a commutator in order to supply current to the rotor, the carbon brushes being mounted with their brush holder on a brush plate via a mount, and the mounts on the brush plate lying across from each other at 180°. The holding part on at least one brush holder is offset from the center, in particular from the axis of symmetry of the brush holder, by an angle relative to the rotor axis so as to realize an asymmetrical placement of the carbon brush, the holding part on the other brush holders being disposed on their axes of symmetry. | 08-04-2011 |
20130038170 | BRUSH HOLDER ASSEMBLIES - Brush holder assemblies are detailed. The assemblies may employ rails, rather than boxes, for supporting brushes. They additionally may extend along all, or substantially all, of the lengths of the brushes for enhanced support of the brushes. | 02-14-2013 |
310246000 | Pressure arm | 4 |
20110115331 | CARBON BRUSH ASSEMBLY OF SLIP RING - The present invention relates to a carbon brush assembly of a slip ring, wherein the slip ring further has a conductive ring. The carbon brush assembly includes a base having two tilted rails, and on each of which a carbon brush is movably mounted for reciprocation. Two biasing members are mounted on the base to urge the carbon brushes toward a conductive ring for keeping the carbon brushes in contact with the conductive ring. | 05-19-2011 |
20120169177 | Induction Motor Brush Holder Assemblies, Apparatus, Systems, and Methods - Systems, methods, and apparatus associated for lifting brushes and shorting slip rings are provided. One embodiment may include a shaft in operable communication with a WRIM rotor; multiple slip rings positioned radially around the shaft and in electrical communication with rotor windings of the WRIM; multiple brushes adapted for selective contact with a respective one of the plurality of slip rings. In addition, the system may include multiple selectively activating electrical contacts in electrical communication with respective terminals of the rotor windings of the WRIM; and an actuating mechanism in operable communication with the brushes and the electrical contacts. When the actuating mechanism is actuated, the electrical contacts create electrical shorts between the slip rings and the rotor windings of the WRIM and the plurality of brushes are lifted from contacting the plurality of slip rings. | 07-05-2012 |
20130049523 | BRUSH DEVICE AND MOTOR - A brush holder extends substantially in a radial direction of a commutator. The brush holder includes a first inner side surface and a second inner side surface, which are separate from each other in the axial direction of the commutator. A torsion spring presses portions-to-be-pressed of a brush-rear end, thereby urging the brush toward the commutator. The portions-to-be-pressed are deviated from a brush-center line in the axial direction of the commutator. The brush is urged by the torsion spring, thereby bringing a brush-tip end into contact with the first inner side surface, and bringing the brush-rear end into contact with the second inner side surface. | 02-28-2013 |
20130169107 | BRUSH MOTOR - A brush motor includes a commutator fixed to a shaft, a pair of brushes in a sliding contact with a circumferential surface of the commutator, a first and a second torsion springs respectively pushing and pressing the pair of the brushes to sides of the commutator, a supporting plate attached with the springs, and a screw supporting the supporting plate. The supporting plate | 07-04-2013 |
310247000 | Axial spring | 10 |
20110006636 | DC MACHINE - A DC machine, particularly a DC motor for use in a motor vehicle, includes a stator, a rotor that is supported rotatably in a pole housing having a commutator, and having a brush-holder support, made substantially of plastic, for fixing at least two brushes and further components. The brush-holder support has a device for improving the positioning of the components situated on or at it relative to the rest of the machine and/or for shortening the tolerance chain of the machine, in particular, a longtime stabilization of the overall equipment being also achieved. | 01-13-2011 |
20110006637 | BRUSH HOLDER APPARATUS, BRUSH ASSEMBLY, AND METHOD - Devices and methods of use for brush holder assemblies are disclosed. Brush holder assemblies including a mounting block and a brush holder are disclosed. Also illustrated is a brush holder assembly including a first portion in sliding engagement with a second portion. In some embodiments the brush holder includes a channel, such that at least a portion of the mounting block is disposed within the channel of the brush holder. | 01-13-2011 |
20110101820 | BRUSH HOLDER ASSEMBLY WITH SPRING CLIP - A brush holder assembly of an electrical device is disclosed. The brush holder assembly includes a brush holder, a spring clip removable from the brush holder, a spring detachably coupled to the spring clip, and a spring retainer for retaining the spring on the spring clip. The spring clip is slidably disposed in channels of the brush holder. The detachable spring includes an end region extending around the end of the spring clip such that a first portion of the spring is facing a first side of the spring clip and a second portion of the spring is facing a second side of the spring clip. The spring retainer extends around the end of the spring clip over the end region of the spring. | 05-05-2011 |
20110181148 | BRUSH DEVICE HAVING A SPRING, FOR AN ELECTRIC MACHINE - A brush device for an electric machine includes a brush holder, a brush which is accommodated therein and has an integrated stranded wire, and a first spring which prestresses the brush with respect to a commutator. At least one second spring is disposed parallel to the first spring, which prestresses the brush with respect to the commutator. | 07-28-2011 |
20120025666 | BRUSH DEVICE HAVING A LITZ WIRE FOR AN ELECTRIC MACHINE - A brush device for an electric machine is described, having a brush mount that has a brush which is accommodated in it and having a first integrated litz wire, having a first spring, which prestresses the brush against a commutator. In order to create an E machine having an improved service life, at least one second litz wire is developed integrated into the brush. | 02-02-2012 |
20130221796 | ALTERNATOR BRUSH HOLDER - A brush holder assembly for an alternator having a rotational axis includes a pair of brushes each having a contacting surface defining a width and a height, and each having a shunt wire extending laterally from the brush in the widthwise direction. The brush holder assembly includes a housing having first and second brush chambers, corresponding first and second wire cavities each defining a cavity height, and first and second slots respectively interposed between the corresponding chamber and cavity. The respective shunt wires extend through the first and second slots then through the first and second wire cavities. The cavity heights are each at least approximately 0.9 times the height of one of the brushes. The height of the first wire cavity is less than approximately 0.97 times ((A/2) plus B), wherein A is the brush height and B is the distance between the brushes. | 08-29-2013 |
20130270963 | CARBON BRUSH WITH DISCONNECTION APPARATUS - A carbon brush with a disconnection apparatus in a cavity in a brush body includes a disconnection body and a prestressed compression-spring body. The disconnection body consists of an electrically insulating material, and the prestressed compression-spring body is configured to act resiliently on the disconnection body. The compression-spring body is formed together with the disconnection body as a short component with a short axial length. In one embodiment, the compression-spring body is in the form of a spring with a plurality of spring turns which, at least in the prestressed, compressed state, are at least partially located one inside the other, shortening them. | 10-17-2013 |
20130293059 | CARBON BRUSH WITH DISCONNECTION APPARATUS - A carbon brush with a disconnection apparatus has, in a cavity in the brush body, a disconnection body. The disconnection body includes an electrically insulating material and a prestressed compression-spring body. The compression-spring body is configured to act resiliently on the disconnection body. At least one of the compression-spring body and the disconnection body is formed from plastic. | 11-07-2013 |
20140070662 | ELECTRIC MOTOR AND MANUFACTURING METHOD OF ELECTRIC MOTOR - There is provided an electric motor and a manufacturing method of the electric motor capable of joining a brush and a commutator without placing load on components. An electric motor is formed at a side of a brush holder | 03-13-2014 |
20150303635 | Brush Assembly for an Electric Motor - A brush assembly has a brush, a brush cage, and a spring. The spring is a constant force spring having two coil portions and a connecting portion. The connecting portion the brush are together received in the brush cage. The brush has a contact end arranged to make sliding contact with a commutator and a second end remote from the contact end against which the spring applies its force, to urge the brush out of the brush cage. A hook is formed at each of two opposite sides of the brush cage, at a first end portion of the brush cage adjacent the contact end of the brush. The coil portions respectively engage the hooks. The hooks extend at different angles to a corresponding outer surface of the brush cage. | 10-22-2015 |