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| Number | Title | Issue Date |
| 7350283 | Method for making rotor for permanent magnet electric machine A method for making a rotor for a permanent magnet electric motor comprising the steps of providing an annular permanent magnet and an annular back-up member. Affixing the magnet to the inner surface of the back-up member in an un-magnetized condition and overmoldin... | 04/01/2008 |
| 7347963 | Method of molding resin to protect a resolver winding At least a winding of a stator stack 2 is molded by injecting a fused resin molding material into a space formed between a top mold and a bottom mold member. When the stator stack 2 of the resolver, which is annular and includes a coiled winding 7 | 03/25/2008 |
| 7342334 | Insulated stator with wire routing element A stator for an electric machine includes stator teeth with powder coat insulation covering a portion of each tooth. An end cap with a routing element is positioned on one side of the stator. Wire extends around and contacts the powder coat insulation on the stator ... | 03/11/2008 |
| 7327065 | Motor, stator for the same, and manufacturing method thereof A motor having a stator that is configured by including a plurality of magnetic partial core members, which have a plurality of split ring cores forming a ring and coil support cores projecting outwardly from the respective center portions of the split ring cores. T... | 02/05/2008 |
| 7323801 | Axial air-gap electronic motor There is provided an axial air-gap electronic motor in which work for assembling a stator can be performed efficiently. A locking protrusion 26 is provided on a flange portion 24 of core members 21a to 21i which are divided ... | 01/29/2008 |
| 7323796 | Motor-driven tool In a motor-driven tool, a carbon brush part 8 is arranged between a suction port 6 and a commutator 11 of the motor and includes a cylindrical side wall 8a. The cylindrical side wall 8a located on an outer periphery o... | 01/29/2008 |
| 7309936 | Resolver with waterproofing elements To obtain a resolver in which the winding portion is prevented from breaking by corrosion caused by water. The resolver includes: a stator core in which a plurality of pole teeth are formed inside an annular stator core main body in a radius direction, a rotor provi... | 12/18/2007 |
| 7302749 | Method of making a two-layer lap winding for a multiphase electrical machine The method of making a two-layer lap winding (12) for a multiphase electrical machine includes the steps of winding a first coil unit (20) of a first phase winding (14) around a winding bar (10); subsequently laying a coil connector (1... | 12/04/2007 |
| 7294941 | Winding coil assembly of reciprocating motor and manufacturing method thereof A winding coil assembly (6) of a reciprocating motor comprising: an outer stator; an inner stator (2) arranged at an inner circumference surface of the outer stator (2) with a certain air gap; a magnet linearly and movably arranged between the o... | 11/13/2007 |
| 7294942 | Outer rotor type motor for drum type washing machine and method for fabricating the same Direct coupling type motor for drum type washing machine having a stator which can reduce material required for fabrication, and a weight after fabrication, simplify a fabrication process, and can be mounted on a fixing side, such as a tub or a bearing housing secur... | 11/13/2007 |
| 7285890 | Magnet retention on rotors Permanent magnets are mounted on a rotor of an electrical motor by an apparatus that keeps an adhesive bonding layer between the magnet and rotor in compression over wide variations in temperature and speed of rotation. The mechanical stresses on the magnets are con... | 10/23/2007 |
| 7276820 | Movable assembly for cylinder type linear motor A movable assembly used in a cylinder type linear motor is provided which can be manufactured at low cost without requiring a cutting process while preventing its magnetic characteristics from deteriorating. The movable core is constructed of a laminated yoke which ... | 10/02/2007 |
| 7271512 | Stator of outer rotor type motor for drum type washer The present invention provides a stator of an outer rotor motor for a washing machine. The stator includes a ring type helical core, an upper insulator having a shape corresponding to a shape of the helical core to enclose an upper part of the helical core, a lower ... | 09/18/2007 |
| 7271513 | Thermal stress relieved overmolded mounting base A method of manufacturing and an overmolded mounting base. A plate is provided with mounting surfaces having a range of alignments including a nominal alignment. The plate is overmolded to form an overmolded plate. The overmolding changes the alignment of the mounti... | 09/18/2007 |
| 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 |
| 7268293 | Surface coating of lapped insulation tape An electrically insulated object 13 with a heat conduit at the interface between the layers of insulating tape 16. The tape 16 has been, surface coated with a high thermal conductivity (HTC) material, so that the interface between the layers of ... | 09/11/2007 |
| 7262526 | Rotor for permanent magnet motor of outer rotor type A rotor for a permanent magnet motor of an outer rotor type having a plurality of permanent magnets and disposed around a stator includes a frame, an annular iron core combined integrally with the frame, and a plurality of insertion holes formed in the core so that ... | 08/28/2007 |
| 7262527 | Stator assembly made from a molded web of core segments and motor using same A plurality of stator segments 20 are linked together by a phase change material 22 enabling simplified winding and higher slot fill. Once wound this continuous structure can be formed into a toroidal core 17 for a stator assembly 40 used... | 08/28/2007 |
| 7262525 | Rotor and motor having the same A rotor of a motor includes a cylindrical rotor shaft that is formed through plastic working. The shaft includes a positioning portion that is formed in an inner peripheral surface of the cylindrical shaft by the plastic working of the shaft. The positioning portion... | 08/28/2007 |
| 7252581 | Power tools It is accordingly an object of the invention to provide a technique of cooling a power tool which further improves cooling effectiveness of the power tool. According to the invention, a power tool is provided that includes a driving motor, a tool bit, a power transm... | 08/07/2007 |
| 7247963 | Eccentric rotor and vibration motor using such eccentric rotor Because the bearing of an eccentric rotor is small, when it is integrated in a rotor by resin molding, the bearing unit can be fractured by impacts unless it has a sufficient mounting strength. Accordingly, an eccentric rotor is provided in which a sufficient mounti... | 07/24/2007 |
| 7242125 | Device for the insulation of stator slots The invention relates to a device for the insulation of the stator slots of an electric machine that has a stator having a plurality of stator poles and stator slots located between the stator poles, comprising an insulating body that has moldings adapted to the sha... | 07/10/2007 |
| 7234229 | Method and apparatus for manufacturing motor coil The present invention provides a process and an apparatus for the preparation of a motor coil by which a longitudinally wound motor coil, so called, can be easily prepared. First, a molded product 10 comprising a column part 11, and a fin part 12 | 06/26/2007 |
| 7225525 | Method for manufacturing electric motor In a method for manufacturing an electric motor, a cylindrical stator core circumferentially dividable into a plurality of core components is inserted into a circular internal surface of a motor housing. In this case, the motor housing is heated to be expanded therm... | 06/05/2007 |
| 7218027 | High-power direct current engine comprising a collector and carbon brushes for a racing car serving as prototype A DC motor includes a rotor which is mounted in a housing so that it can rotate about an axis. The rotor includes at least one winding to which direct current is applied from the outside in alternating directions via a commutator, which is arranged on the rotor. Bru... | 05/15/2007 |
| 7215052 | Brushless D.C. motor The brushless direct current motor comprises a housing 10, a stator 13 and a rotor 11 within the housing, windings on the stator, sensors for sensing the position of the rotor relative to the stator and electronic circuitry for switching the cur... | 05/08/2007 |
| 7215048 | Dynamoelectric machine having encapsulated coil structure with one or more of phase change additives, insert molded features and insulated pinion An electric motor has an armature and a stators. The armature has a lamination stack having slots therein. An internal shaft extends coaxially through the lamination stack. A plurality of magnet wires are wound in the slots of the lamination stack. A commutator is d... | 05/08/2007 |
| 7208855 | Fiber-optic cable as integral part of a submersible motor system Apparatus, systems and methods are provided for transmission of optical signals through a wellbore whereby optic fibers are protected from exposure to harsh downhole fluids and conditions. The system comprises a power cable assembly running down hole from the surfac... | 04/24/2007 |
| 7199500 | Claw-pole electric generator and bicycle electric generator hub A claw-pole electric generator has a circumferentially arranged permanent magnet, a ring-shaped coil, a yoke and a cover member. The yoke surrounds an external periphery of the coil. The yoke has a stator yoke portion and a core yoke portion. The stator yoke portion... | 04/03/2007 |
| 7196443 | Rotary electric machine In a rotary electric machine, each stator coil includes a bobbin that is fitted to one of teeth of a stator core and a phase coil is wound around the bobbin. Each bobbin includes a bobbin terminal for connecting opposite ends of the phase coil. A stator housing incl... | 03/27/2007 |
| 7193345 | Collecting and distributing ring for rotary electric machine stator A collection-distribution ring comprises three busbars, each having a circular ring shape, which are integrally connected together with prescribed distances therebetween by an insulating resin. Coil connection terminals project inwardly in a radial direction and are... | 03/20/2007 |
| 7183683 | Inner magnet of a magnetic coupling An inner magnet assembly for a rotary magnetic coupling, the inner magnet assembly having an inner ring body with magnet guides, magnets and an overlying sleeve. ... | 02/27/2007 |
| 7178219 | Method of manufacturing a magneto-generator A magneto-generator, a method of manufacturing the same and a resin molding die for manufacturing the same. In the magneto-generator, a guard ring is omitted with the performance of the magneto-generator being enhanced. The magneto-generator is manufactured by makin... | 02/20/2007 |
| 7170206 | Method for the production of a rotor for an electric turning machine The invention proposes a method of making a rotor (12) for a rotary electrical machine, the rotor including a core (14) on which there is formed at least one electrical winding (16) comprising at least one electrically conductive element (18 | 01/30/2007 |
| 7170212 | Synchronous axial field electrical machine A permanent magnet electrical machine comprises a first substantially planar member (9, 10) and a second substantially planar member (3) arranged substantially parallel to the first substantially planar member. The first and second members are rotatabl... | 01/30/2007 |
| 7168923 | Alternator fan The invention is a fan for an alternator adapted to be coupled in rotation to the alternator rotor, and being of the type comprising a wheel part and a plurality of fan blades (47, 48) extending from the latter, the fan being moulded in a plastics material on... | 01/30/2007 |
| 7165313 | Method of producing an electric motor An electric motor, in particular a stepper motor, comprises a first rigid component having a recess and a second rigid component having a protrusion. The protrusion is at least partially oversized relative to the recess before assembling the first and second compone... | 01/23/2007 |
| 7164216 | Motor A motor includes a stator section with a two-phase structure having first and second stator assemblies disposed in an axial direction, and a plurality of pole teeth arranged at an electrical angle of 90 degrees along inner circumferences of the first and second stat... | 01/16/2007 |
| 7157824 | Coin type vibrating motor Disclosed is a coin type vibrating motor including: a rotor provided with an upper base including at least one wound coil placed on the upper surface thereof; a stator including a pair of brushes placed on the upper surface of a lower base, on which a magnet is moun... | 01/02/2007 |
| 7154200 | Motor A motor has a stator substantially encapsulated within a body of thermoplastic material; and one or more solid parts used in the motor either within or near the body. The thermoplastic material has a coefficient of linear thermal expansion such that the thermoplasti... | 12/26/2006 |
