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| Number | Title | Issue Date |
| 8040016 | Commutator brush with improved contact and non-contact zones The present invention relates to a brush 10 suitable for coming into contact with conducting plates 12 provided on an electric motor commutator 11. According to the invention, the brush has a means 15 for adjusting its pole coverage betwe... | 10/18/2011 |
| 7919899 | Electrical machine The invention describes an electrical machine having an armature with armature slots for accommodating armature coils. At least one armature coil is formed from two coil elements which are arranged symmetrically with respect to one another in relation to an axis of ... | 04/05/2011 |
| 7880363 | 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... | 02/01/2011 |
| 7859166 | Carbon brush produced by mixing a carbonaceous filler and a binder, and kneading, shaping, and baking the mixture A carbon brush that suppresses a wear amount of a carbon commutator and has less swelling is provided. The carbon brush has a part connected to a lead and is one that slides in contact with a carbon commutator that is used in a fuel pump. The bulk density of the car... | 12/28/2010 |
| 7642688 | Metal-graphite brush The metal-graphite brush of the present invention contains graphite, a metal, a lubricant, and bismuth or bismuth oxide in an amount of 1.0 wt. % to 3.0 wt. %. For example, the metal is copper, and the lubricant is molybdenum sulfide. ... | 01/05/2010 |
| 7622844 | Metal fiber brush interface conditioning An electrical brush having at least one conductive element and at least one conditioning material coated on the at least one conductive element wherein the conditioning material has a composition and thickness on the conductive element such that, as deposited on a m... | 11/24/2009 |
| 7586230 | Brush, commutator, and commutator device In a commutator of a rotary electric machine, each of commutator segments has a low-resistive layer made of a low-resistive material and a high-resistive layer made of a high-resistive material having a specific resistance higher than that of the low-resistive mater... | 09/08/2009 |
| 7362029 | Fuel pump comprising an electric motor The invention relates to a fuel pump which comprises an electric motor. Said electric motor is provided with carbon brushes (11) that cover a plurality of lamellae (17) of a collector (9). Grooves (7) in an armature (6) include sec... | 04/22/2008 |
| 7362030 | Brush type small motor having non-linear spring device A spring device includes of a coil spring case formed of right, left, back and front side plates and a spring receiving plate, a coil spring having a linear spring property, and a spring urging member for urging the coil spring into the coil spring case. A distance ... | 04/22/2008 |
| 7352091 | Electronic package for electrical machine Disclosed herein is an electronic package for an electrical machine including a slip ring end frame; a plurality of negative diodes dispersed in an angular fashion in the SRE frame acting as a negative heat sink; a plurality of positive diodes mounted on a separate ... | 04/01/2008 |
| 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 |
| 7326204 | Brush electrode and method for ablation A brush electrode and a method for using the brush electrode for tissue ablation are disclosed. The brush electrode comprises a plurality of flexible filaments or bristles for applying ablative energy (e.g., RF energy) to target tissue during the formation of spot o... | 02/05/2008 |
| 7326205 | Surgical device with brush electrode and methods for electrosurgical treatment A surgical device incorporates a brush electrode for tissue ablation and other forms of electrosurgical treatment. A plurality of flexible filaments compose the brush electrode, through which therapeutic energy (e.g., RF energy) is applied to target tissue for the f... | 02/05/2008 |
| 7326206 | Conforming-electrode catheter and method for ablation A brush electrode catheter and a method for using the brush electrode catheter for tissue ablation are disclosed. The brush electrode catheter comprises a plurality of flexible filaments or bristles for applying ablative energy (e.g., RF energy) to target tissue dur... | 02/05/2008 |
| 7294166 | Metal-graphite brush A brush body 4 of a metal-graphite brush 2 is composed of a commutator side portion 6 which contains graphite, copper and a metal sulfide solid lubricant, and a lead side portion 8 which contains graphite and copper but does not contain a... | 11/13/2007 |
| 7287985 | Brush block for transmitting currents A brush block is provided for transmitting currents to a slip ring using at least one multi-wire slip element with a plurality of parallel connected multi-wire slip elements that are distributed one behind the other in the direction of slip following an imaginary cu... | 10/30/2007 |
| 7268461 | Low cost electrical motor components manufactured from conductive loaded resin-based materials Electric motor components are formed of a conductive loaded resin-based material. The conductive loaded resin-based material comprises micron conductive powder(s), conductive fiber(s), or a combination of conductive powder and conductive fibers in a base resin host.... | 09/11/2007 |
| 7265475 | Electric motor having convex high-speed brush A two speed direct current electric motor comprising: an armature having a commutator assembly that is adapted to receive an electromotive force to cause the armature to operatively rotate. A brush assembly having a common brush and a low-speed brush is disposed abo... | 09/04/2007 |
| 7220131 | Electromechanical device having a plurality of bundles of fibers for interconnecting two planar surfaces According to various embodiments, exemplary interconnects and methods for interconnection are provided that can include contacts formed by fiber bundles. The exemplary interconnects can be used to form separable or non-separable electro-mechanical connections betwee... | 05/22/2007 |
| 7202586 | Electrical contact member There is provided an electrical contact member where wear can be reduced. The electrical contact member is characterized by one or both of conductive metal particles and conductive metal fibers, at least outer circumferential surfaces of which have been modified wit... | 04/10/2007 |
| 7199499 | Homopolar machine with brush improvement The wear life of flexible copper fiber brushes when used at a positive pole in a direct current motor or generator is improved by the provision of an effective amount of zinc as a sacrificial anode material. Flame-sprayed zinc is applied as a coating to the exterior... | 04/03/2007 |
| 7138743 | Solid and liquid hybrid current transferring brush The moving slip ring surface of electrical machinery transfers electrical current by contact thereof with liquid metal directly or through the tips of a plurality of closely spaced brushes positioned along the bottom of a housing under pressure within which the liqu... | 11/21/2006 |
| 7138744 | Brush of rotary electric machine A brush to be disposed on a commutator of a dc rotary electric machine includes a high resistance member to be positioned at a front side of the commutator in the rotation direction, a low resistance member to be positioned at a back side in the rotation direction o... | 11/21/2006 |
| 7129615 | Metal coated carbon brush Disclosed is a metal coated carbon brush having a carbonaceous substrate and a metal coating formed on a surface of the carbonaceous substrate having a mean pore radius of 0.1–2.0 μm and an accumulative pore volume of 50–600 mm3/g. ... | 10/31/2006 |
| 7071643 | Dual speed quad brush two pole motor system A motor system includes four brushes electrically connected to a rotor. A stator includes two magnetic poles. A circuit selectively rotates the rotor at a first speed by applying a first voltage to a first of the brushes and a second voltage to a second of the brush... | 07/04/2006 |
| 6952555 | Low profile passive static control device A static control device suitable for printers, copiers and the like is disclosed with a manufacturing method therefor. A carrier strip of non-metallic, electrically conductive material, such as plastic, is provided with a plurality of spaced bundles of electrically ... | 10/04/2005 |
| 6949863 | Metal-graphite brush A metal-graphite brush comprises a brush body which is made by mixing and molding metal powder and graphite powder. 2 mg to 30 mg as amounts of phosphate ion of at least one of phosphoric acid and a phosphate compound is added to 1 g of the brush body of the metal-g... | 09/27/2005 |
| 6933651 | Commutating device for small-sized motor and manufacturing method therefor In the present invention, by selecting an optimum combination of plating layer materials or materials, not only the manufacturing cost of motor brush is reduced but also a plating layer having excellent characteristics is formed in a narrow width on the surface of b... | 08/23/2005 |
| 6909219 | Carbon brush for electric machine Molybdenum disulfide, tungsten disulfide or the like as a solid lubricant and any of alumina, silica, silicon carbide or the like as an abrasive are added to filter graphite. A metal of good electric conductor is coated over the whole surface of a carbon brush mater... | 06/21/2005 |
| 6838627 | Contact element and a contact arrangement An element (20) for making an electric contact to another contact member (19) for enabling an electric current to flow between said element (20) and said contact member comprises a body having at least a contact surface thereof coated with a con... | 01/04/2005 |
| 6815862 | Multilayer brush In a multilayer brush composed chiefly of copper and graphite and incorporated therein with a solid lubricant, which consists essentially of two types of brushes, a high-copper-content part brush containing the copper in a large quantity and a low-copper-content par... | 11/09/2004 |
| 6809455 | Brush holder comprising brushes with contact tabs, spring and damping element The invention concerns a commutator device (1) for electric motor, comprising a housing part (2) and commutator brushes (3) housed in the housing part, each brush comprising a contact surface (8) designed to be pressed in contact against ... | 10/26/2004 |
| 6809454 | Motor having brush holder with communication hole In a motor having a motor unit and a speed-reducing unit, a brush holder is sandwiched between a yoke housing of the motor unit and a gear housing of the speed-reducing unit. The brush holder includes holder body, joining portion, and connector portion. The holder b... | 10/26/2004 |
| 6800981 | Tubular brush holder A brush holder including a tubular brush box, a baseplate configured to be fastened to an electrical brush and movable in the brush box, a resilient multi-contact lining disposed in the brush box between the baseplate and an inner wall of the brush box, and a spring... | 10/05/2004 |
| 6787963 | Brush assembly An brush assembly is provided in which electric power losses in brushes 32 are reduced, thereby suppressing an abnormal or excessive rise in temperature of the brushes. A tip end of a lead wire 33 inserted into a corresponding brush 32 in a dire... | 09/07/2004 |
| 6787962 | Starter with overheat protection device including brush device The brush device of a starter with an overheat protection device of the present invention is provided with brush holders, brushes slidably supported in the brush holders, respectively, springs contacting one sides of the brushes to press the brushes in the radial, i... | 09/07/2004 |
| 6737784 | Laminated amorphous metal component for an electric machine A bulk amorphous metal magnetic component for an electric machine such as a motor or generator is described. The component may include a plurality of substantially similarly shaped laminations stamped from ferromagnetic amorphous metal strips, stacked and bonded tog... | 05/18/2004 |
| 6731042 | Constant force cartridge brush holder A brush holder assembly for use in an electric actuating device includes a cylindrical sleeve mounted in a housing of the device. The sleeve incorporates a tube that has an end extending inwardly toward a commutator. The tube may also have a length longer than the c... | 05/04/2004 |
| 6700292 | Metal-graphite brush A metal-graphite brush has a copper-graphite brush body to which a metal sulfide solid lubricant is added and a lead embedded. Indium is at least added to an interface between the brush body and the lead in a concentration of 0.4-8 wt %.... | 03/02/2004 |
| 6700289 | Direct current commutator motor A DC commutator motor that is driven by a direct current power source obtained by rectifying an alternating current power source includes a plus-side brush made of material having a high resistivity and a minus-side brush made of material having a low res... | 03/02/2004 |
