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| Number | Title | Issue Date |
| 7663286 | Commutator motor with brush biased toward initial contact side A motor includes a rotor, a commutator, a brush, and a bias member. The commutator has a rectifying surface. The commutator rectifies an electric current supplied to the rotor through the rectifying surface. The rotor is rotated by being supplied with the electric c... | 02/16/2010 |
| 7417354 | 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 porti... | 08/26/2008 |
| 7358641 | Brush device for rotary electric machine A brush device assembled in a vehicular alternator is composed mainly of a pair of brushes, a pair of springs, and a brush holder. The brush holder accommodates the brushes and the springs. The springs push the brushes toward slip rings placed on and fixed to a rota... | 04/15/2008 |
| 7339302 | Electrical contact technology and methodology for the manufacture of large-diameter electrical slip rings The present invention provides several improvements in a slip ring (36) that is adapted to provide electrical contact between a rotor (42) and stator (40). In one aspect, a brush tube (39) is crimped around the upper marginal end portions... | 03/04/2008 |
| 7274127 | Automotive alternator and automotive alternator brush abrasion detection system A brush holding apparatus is mounted to an inner wall surface of a rear bracket and a cap mounted to a head portion of a brush holder portion is exposed through an opening in the rear bracket. Brushes are housed inside brush insertion apertures of the brush holder p... | 09/25/2007 |
| 7242127 | Brush device and motor with brush A brush device having the longitudinal direction of a coil shaped coil spring aligned with the face of a brush holder, in which one end of a support post at the surface of a brush base is formed as a hollow cylinder and a projection at the other end is insert molded... | 07/10/2007 |
| 7239062 | Brush-holder assembly for electric machine This brush holder assembly for an electric machine includes a bearing-forming metal end cap (26) intended to be mounted on a carcass of the machine, and a set of members (28, 30, 32, 34) for electrical connection of the brushes mounted on the end cap (... | 07/03/2007 |
| 7193349 | Brush holder for a carbon brush An electric motor, in particular a motor and gear box unit for activating functional equipment in a vehicle, includes a rotor shaft carrying a commutator co-operating with conductive brushes disposed in brush supports fixed to a printed circuit card; the motor is pr... | 03/20/2007 |
| 7180220 | Motor carbon brush assembly A motor carbon brush assembly is composed of an insulated holder, a first electrically conductive member, a resilient member, a second electrically conductive member, a carbon brush, a spring, and a rear cover. The resilient member includes a contact portion elastic... | 02/20/2007 |
| 7180219 | DC motor with externally mounted carbon brush This invention discloses a DC motor with externally mounted carbon brushes, comprising a front end cover, a housing, magnet, a rotor, a commutator and a back end cover, characterized in that the outer wall of the back end cover is provided with two mounting holes fo... | 02/20/2007 |
| 7179090 | Integral dual-component current collection device A dual-nature, uni-constructed device, suitable for conducting electricity between two objects in relative motion, comprises two compatible elements each having a straight section and a sinuous section. The two elements are combined to form a unified whole whereby t... | 02/20/2007 |
| 7173359 | Brush holder assembly for an electric motor A universal motor has a brush cage assembly in which a U-shaped clip 34 is located about a wall of a through hole 28 of a bearing bracket 24 for receiving a brush cage 30. The clip 34 has an outer limb 42 with inwardly and r... | 02/06/2007 |
| 7173357 | Axial gap type dynamo-electric machine There is provided an axial gap type rotating electric machine which is small-sized and achieves a high motor efficiency as a drive source having a high torque using, for example, a strong magnet by reducing an energy loss by an induced current. An axial gap t... | 02/06/2007 |
| 7145279 | Mount part for commutator brushes of an electric motor The invention relates to a support element on which the commutator brushes are each disposed on one curved spiral spring each. Said spring, on its side facing away from the commutator brush in the area of the end of the coil is trapezoid and is braced between an out... | 12/05/2006 |
| 7141906 | Brush holder apparatus, brush assembly, and method Devices and methods of use for brush holders are disclosed. A brush holder assembly including a brush catch and a brush release is disclosed. Also illustrated is a brush holder assembly including a first portion in sliding engagement with a second portion. Sliding e... | 11/28/2006 |
| 7132777 | Electric motor and brush retaining assembly The present invention generally provides a motor-fan unit including a motor assembly having a shaft, a commutator supported on the shaft, and a pair of brushes in electrical contact with the commutator, a fan assembly having an impeller coupled to the shaft, an end ... | 11/07/2006 |
| 7121445 | Power tool housing A housing for an electric tool has a plurality of spring arms for exerting a spring force on a brush holder that holds a brush for engaging a commutator. Preferably, the spring arms are integral with a tool housing end cap. ... | 10/17/2006 |
| 7122935 | Brush holder apparatus, brush assembly, and method Devices and methods of use for brush holders are disclosed. A brush holder assembly including a brush catch and a brush release is disclosed. Also illustrated is a brush holder assembly including a first portion in sliding engagement with a second portion. Sliding e... | 10/17/2006 |
| 7116032 | Automotive alternator and automotive alternator brush abrasion detection system A brush holding apparatus is mounted to an inner wall surface of a rear bracket and a cap mounted to a head portion of a brush holder portion is exposed through an opening in the rear bracket. Brushes are housed inside brush insertion apertures of the brush holder p... | 10/03/2006 |
| 7049532 | Electric contacts, electric contact apparatus and method for detecting abrasion of the electric contacts A pair of electric contacts include a pair of first units which are provided on the surfaces of the end sides of the electric contacts, and generate light having first characteristics at the time of opening and closing of the electric contacts, and a pair of second ... | 05/23/2006 |
| 7045928 | Pot or cup-shaped carrier The invention concerns a pot or cup-shaped carrier (10) for carbon brushes (12), especially intended for servomotors, comprising an inner wall, such as a bottom wall, originating from the carrier perimeter wall, and interspersed by the commutator or by... | 05/16/2006 |
| 7034431 | Brush holding plate for an electric motor, corresponding electric motor and assembly method A brush holding plate includes cartridges and brushes, which are guided into the cartridges. The brushes are guided in a spring-loaded manner in the radial direction towards a central opening in the brush holding plate. The cartridges are arranged on the brush holdi... | 04/25/2006 |
| 7034430 | Brush holder apparatus, brush assembly, and method Devices and methods of use for brush holders are disclosed. A brush holder including an over-center locking device is disclosed. Also illustrated are methods and devices for maintaining brush pressure against a moving conductive surface using a spring without a back... | 04/25/2006 |
| 7015618 | Arrangement for electric power supply to a motor The invention concerns an arrangement for supplying power to an electric motor having a commutator, comprising at least two carbon brushes (12, 14), as well as flat springs (16, 18) that subject said brushes to force in the direction of the commutator ... | 03/21/2006 |
| 7014432 | Fuel pumping unit, with a plurality of commutator brush assemblies with engaging members for restricting brush movement toward the pump motor section A fuel pump includes a housing, a pump section, a motor section including a commutator, a cover disposed at one end of the housing, a pair of brushes disposed in a pair of brush holes formed in the cover to be in contact with the commutator; and a pair of brush spri... | 03/21/2006 |
| 6867528 | Dynamoelectric machine and method for mounting a brush assembly to a brush holder A brush assembly is constructed such that a brush and a brush terminal are linked by means of a pigtail, a brush spring is disposed under compression between the brush and the brush terminal, and a cylindrical guide is disposed near the brush terminal inside the bru... | 03/15/2005 |
| 6836050 | Terminal structures for motor with brush to connect motor to external circuit A motor with brush includes a rotor having a rotary shaft and a commutator retained at the rotary shaft, two brush sections each having a plane surface in an axial direction of the rotor and in sliding contact with the commutator, and two brush terminals that are in... | 12/28/2004 |
| 6831381 | Electric drive, especially for motor vehicles In an electrical drive mechanism, in particular for motor vehicles, having a commutator motor (14) disposed in a housing (10), which commutator motor (14) has a rotor shaft (17) with a commutator (22) non-rotatably supported on it ... | 12/14/2004 |
| 6781275 | TANGENTIALLY SYMMETRIC DC MOTOR CARBON BRUSH SYSTEM COMPRISING A SPRING PART BEING PROVIDED WITH FIRST AND SECOND SECTIONS FIXATED TO A CARBON BRUSH PART, A SPRING PART FOR USE IN SUCH SYSTEM, AND A DC MOTOR PROVIDED WITH SUCH SYSTEM A carbon brush spring system comprises a carbon brush arranged at a first terminal surface thereof conductively contacting a rotatable collector body (20) for electric current transfer. The system furthermore comprises a spring part arranged at a region of th... | 08/24/2004 |
| 6700291 | Brush holding device, motor having the same, and method for assembling motor Brush holding device includes a brush, a brush holder, a torsion spring and a support pin. The torsion spring applies side pressure to the brush by spring force exerted around the support pin and also temporarily hold the brush in the brush holder. When t... | 03/02/2004 |
| 6628036 | Electrical current transferring and brush pressure exerting spring device A serpentine-shaped spring device having an internal core made of braided wires coated with elastomeric material for environmental protection and to enhance exertion of a low holding spring pressure on a metal fiber brush, when the spring device is suitab... | 09/30/2003 |
| 6617745 | Engine pump unit The invention relates to a motor-driven pump unit, in particular for antilock systems of motor vehicles, with an electric motor that is arranged on one side of a pump unit and an electronic unit that is arranged on another side of the pump unit and fasten... | 09/09/2003 |
| 6380656 | Liquid cooled alternator brush holder ribs A brush holder assembly (12) for a rotating electrical machine such as an alternator (10) has a cavity (56) therein. The cavity (56) is defined by a first wall (60), a second wall (62), a third wall (64), and a fourth wall (66). The cavity (56) is sized t... | 04/30/2002 |
| 6298967 | Rotating coil electromagnetic An electromagnetic coil is fixed in a rotor through an insulation member. A slip-ring rotating with a rotor and a brush supplying electric current to the slip-ring are disposed radially inside a boss portion of a compressor housing. The slip ring is attac... | 10/09/2001 |
| 6246144 | Carbon brush holders or cards Brush card or holder assemblies are disclosed. The assemblies avoid any need for a separate plastic cap and utilize a lead wire (which could be or include a rod or other electrically-conductive device) both electrically to connect a brush to an external c... | 06/12/2001 |
| 6175176 | Electric motor An electric motor with a stator having two magnetic shells (2, 3) has a spring element (6) which prestresses the magnetic shells (2, 3) against a stop fixed to the housing. The spring element (6) bears on both magnetic shells (2, 3) with in each case two ... | 01/16/2001 |
| 5977683 | Brush-holder plate and electric motor comprising this brush-holder plate An electric motor has brushes preassembled in casings on a brush holder plate. To keep the brushes in the casings as long as a collector of the motor has not yet been fitted, a retaining ring in front of the brushes is installed, this retaining ring being... | 11/02/1999 |
| 5977682 | Brush holder assembly having dynamic loading An improved method for the manufacture of a compact brush guide holder assembly which is commonly found on machines in which electricity is to be transferred between an electrically conductive brush element as it moves and makes contact with a rotatable c... | 11/02/1999 |
| 5818142 | Motor pack armature support with brush holder assembly A series motor armature support assembly comprises a bearing receiving member (60), a pair of legs (62, 64) extending from the bearing receiving member (60), and a brush holding assembly receiving member (66, 68) coupled with each leg. The brush holding a... | 10/06/1998 |
| 5753995 | Device for indicating wear on a motor brush To inform a user of wear on a carbon brush for a motor earlier than when the carbon brush is actually required to be replaced with a new brush. In a motor brush wear indicating device, a metal terminal is attached to a brush holder, being opposed to the i... | 05/19/1998 |
