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| Number | Title | Issue Date |
| 7084544 | Brushless DC motor Assembly quality of an armature coil is significantly enhanced since a BLDC motor is provided with a rotor having a permanent magnet and a rotor core, for forming a magnetic field; a stator having an armature coil and an armature yoke, for forming a rotating magneti... | 08/01/2006 |
| 7084542 | Stator winding of the electric motor of an elevator machine A stator winding assembly for a stator of an elevator machine motor, in which the stator may include a stator frame with a plurality of stator teeth and one or more slots between given stator teeth. The assembly may include a stator winding adapted to be fitted in t... | 08/01/2006 |
| 7084543 | Mounting of the stator winding of the electric motor of an elevator machine An arrangement for mounting a stator winding in a stator of an elevator machine motor, where the stator may include a stator frame with a plurality of stator teeth and one or more slots between given stator teeth. The arrangement may include a winding frame configur... | 08/01/2006 |
| 7081696 | Polyphasic multi-coil generator A polyphasie multi-coil generator includes a drive shaft, at least first and second rotors rigidly mounted on the drive shaft so as to simultaneously synchronously rotate with rotation of the drive shaft, and at least one stator sandwiched between the first and seco... | 07/25/2006 |
| 7081697 | Dynamoelectric machine stator core with mini caps A stator assembly for a dynamoelectric machine in accordance with the present invention includes a generally cylindrically-shaped stator core having a plurality of core slots formed along the inner surface thereof and defined by a radial depth and wherein a stator c... | 07/25/2006 |
| 7081698 | Efficient motor The present invention is directed to a method and system for improving motor efficiency. The motor of the present invention may provide at least 1.9 Horsepower (HP) while drawing 15–16 Amperes at 120 Volts. The motor of the present invention may provide at least 7... | 07/25/2006 |
| 7078844 | Heat-dissipating device and motor structure thereof A heat-dissipating device and a motor structure. The heat-dissipating device has a outer frame provided with a seat, at least two rotors, a control unit and a stator. The rotors are respectively disposed on the seat. The control unit is disposed on the seat for cont... | 07/18/2006 |
| 7078842 | Electric machine with a damping device An electric AC machine with a primary section and a secondary section is disclosed. The primary section has a region facing the secondary section and a region facing away from the secondary section. The region facing the secondary section has windings adapted to rec... | 07/18/2006 |
| 7071584 | Linear motor A linear motor includes tubular outer yoke (4), tubular inner yoke (3) disposed in outer yoke (4), coil (2) provided to inner yoke (3), permanent magnet (5a, 5b) vibrating following a magnetic flux produ... | 07/04/2006 |
| 7071800 | Actuators with integrated circuits An actuator includes a coil and an IC attached to a core. The coil produces a magnetic field and the core provides a path for the magnetic field. A rotor is rotatably mounted within the core, so that the rotor rotates in response to the magnetic field produced by th... | 07/04/2006 |
| 7068014 | Online alternator flywheel system A flywheel energy storage system for preventing power interruptions to a load from interruptions of primary power includes a flywheel supported for rotation about an axis on a bearing system, and a motor-generator having a rotor coupled with the flywheel, and having... | 06/27/2006 |
| 7067953 | Stator arrangement for an electric machine The invention relates to a stator arrangement for an electric machine having a stator ring that is closed at its inside circumference and has stator poles at its outside circumference, wherein the stator ring is built up of a plurality of substantially identical T-s... | 06/27/2006 |
| 7067943 | Resin-molded stator, a method of manufacturing the same, and a rotary machine using the same A highly reliable resin-molded stator not suffering insulation breakdown between different phases of stator coils even when the operation mode is repeated where the output of a rotary machine using a resin-molded stator is to be increased from the level under a stop... | 06/27/2006 |
| 7067950 | Efficient high-speed electric device using low-loss materials The invention relates generally to an electric device, such as an electric motor, a generator, or a regenerative motor, having a wound stator core made from advanced low-loss material. In preferred embodiments, the electric device is an axial airgap-type configurati... | 06/27/2006 |
| 7064469 | Core back of an electrical machine and method for making the same An essentially ring shaped core back for an electrical machine comprising a plurality of stacked, ring shaped sheets of soft magnetic material, a barrier of electrical resistance arranged between two adjacent sheets of soft magnetic material for reducing effects of ... | 06/20/2006 |
| 7064467 | Commutator motor A commutator motor includes a stator and a rotor, and the stator includes a stator yoke and a field magnet. The field magnet is fixed onto the inner peripheral surface of the substantially cylindrical stator yoke. The stator yoke is configured by coaxially stacking ... | 06/20/2006 |
| 7064468 | Brush-less motor using vernier structure A brush-less motor includes a rotor with a magnet alternately magnetized N pole and S pole in a rotating direction, and a core with plural salient poles on which coils are wound. The core faces the magnet to form a magnetic circuit. Each one of the salient poles are... | 06/20/2006 |
| 7061146 | Drive arrangement with a fixed bearing The invention relates to a drive arrangement with a unit comprising stator, rotor and fixed bearing in which a shaft of the motor is mounted, housed in a motor housing. An injection molded piece comprises a plug piece on an external annular piece, which comprises a ... | 06/13/2006 |
| 7057316 | Downhole torque generator A torque-generating apparatus includes a first assembly (10, 25) including a generally cylindrical member of magnetically soft material and having a longitudinal axis and a second assembly (2) arranged coaxially within the first assembly and including ... | 06/06/2006 |
| 7057324 | Silicon steel punching orientation modifications to lower eddy current losses at the stator core end of dynamoelectric machines The invention involves orienting the metal laminations that form a stator core end in such a way so as to reduce eddy current losses in the finger portions of the metal laminations. The metal laminations are positioned so that the grain orientation is parallel to th... | 06/06/2006 |
| 7053514 | Image apparatus and drive motor A drive motor is proposed, which serves as a drive source for a movement mechanism constituting an iris for an optical path of an imaging system. The drive motor has a shaft serving as a center of rotation, a magnet, two-pole magnetized and rotated around the shaft,... | 05/30/2006 |
| 7049725 | Dynamoelectric machine stator and method for mounting prewound coils thereunto A dynamoelectric machine stator core for receiving a pre-formed stator winding includes a core body defining a cylindrical core main peripheral surface. A plurality of axially extending stator slots are circumferentially spaced in the core body. Each of the stator s... | 05/23/2006 |
| 7049726 | Stator for dynamo-electric machine The invention provides a stator for a dynamo-electric machine capable of preventing deterioration of efficiency. In the stator for dynamo-electric machine of which rotor is disposed inside the stator, a stator core 11 comprises: an inside ring core 9 f... | 05/23/2006 |
| 7048213 | Methods of operating a food waste disposer having a variable speed motor The present invention provides a food waste disposer having an upper food conveying section, a motor section, a central grinding section and a controller. The upper food conveying section includes a housing forming an inlet to receive food waste. The motor section i... | 05/23/2006 |
| 7049715 | High speed spindle motor for disc drive A motor is constructed from a stator assembly including a stator having multiple conductors that create a plurality of magnetic fields when electrical current is conducted by the conductors and a body of a phase change material such as a thermoplastic substantially ... | 05/23/2006 |
| 7049724 | Superconducting rotating machines with stationary field coils and axial airgap flux A machine, such as a motor or generator, includes a rotatable rotor assembly comprising a plurality of salient poles and a stationary stator assembly comprising a superconducting field coil. The superconducting field coil and the salient poles are configured relativ... | 05/23/2006 |
| 7045925 | Stator for an electrical induction machine, especially a synchronous machine A stator for an electric rotating-field induction generator that is much simpler to produce, especially regarding its windings, includes main and auxiliary poles projecting inward pressed or otherwise disposed radially onto the inner side of a yoke and positioned al... | 05/16/2006 |
| 7045923 | Magnetizing method and permanent magnet magnetized thereby A conductive attenuation body is arranged close to at least a part of surface of a material to be magnetized which has far lower conductivity than that of the attenuation body. Furthermore, the change in magnetic flux during magnetization is rapidly intensified for ... | 05/16/2006 |
| 7045912 | Wave-power electric device and method The present invention relates to a wave-power unit having a floating body (3) and a rotating electric generator (5) mechanically connected to the floating body (3). In accordance with the invention a mechanically movement transmitting means (... | 05/16/2006 |
| 7042129 | Stator of a rotary electric machine having secured core slot insulators A stator of a rotary electric machine having secured core slot insulators includes a multi-phase stator winding, having a plurality of slot segments that are adapted to be radially inserted into a plurality of circumferentially spaced axially-extending core slots in... | 05/09/2006 |
| 7042130 | Electrical machine construction using axially inserted teeth in a stator ring or armature An electrical machine using a plurality of separate teeth that can be axially inserted into a stator ring or armature after receiving a bobbin or form wound coil. Each tooth contains a primary locating structure and a secondary locating structure which respectively ... | 05/09/2006 |
| 7038348 | Dynamo electric machine A dynamo-electric machine comprises a stator having a plurality of salient poles wound with a coil, and a rotor fixed with a plurality of permanent magnets and disposed to rotate freely on an outer circumference of the stator. Salient poles becoming in-phase are arr... | 05/02/2006 |
| 7038349 | Stator for dynamo-electric machine In a stator, each bridge of each inner core sheet includes a thin wall portion, which extends in a circumferential direction of the stator and has a smaller axial thickness in a direction parallel to the axial direction of the stator in comparison to the rest of the... | 05/02/2006 |
| 7038406 | Bi-directional field control for proportional control based generator/alternator voltage regulator An H-bridge switching topology for bi-directional field excitation to null the effects of a rotor's permanent magnets uses both a low-side and a high-side field excitation driver to control the rotor's average field current. A standard proportional control signal fo... | 05/02/2006 |
| 7036206 | Process for preparing an over molded motor stator structure A process for preparing an over molded motor stator structure comprises constructing a bobbin assembly; constructing an intermediate stator assembly including assembling the bobbin assembly to a stator core having an internal and external diameter; disposing the int... | 05/02/2006 |
| 7036207 | Stator assembly made from a plurality of toroidal core segments and motor using same A plurality of stator arc segments form a toroidal core for a stator assembly used to make a motor. In a preferred embodiment, a plurality of magnetic fields is created when electrical current is conducted through wire wound around poles on the toroidal core. A mono... | 05/02/2006 |
| 7038350 | Rotated reverse-direction-staple system and method A core for an electric machine having a first lamination plate with a first staple, a second lamination plate with a second staple and a second hole, and a third lamination plate with a third hole and a third opening is provided. The first and second lamination plat... | 05/02/2006 |
| 7030535 | High temperature superconducting synchronous rotor coil having multi-piece rotor core A rotor core and winding assembly including: separable rotor core sections assembled to form the rotor core, where the core sections each have a substantially circular perimeter and are axially aligned when assembled as the core, and the winding assembly includes a ... | 04/18/2006 |
| 7030527 | Data storage device with mechanism to control rotation of spindle motor Embodiments of the present invention effectively control, by a simple structure, floating of a rotor of a fluid dynamic bearing motor mounted in a hard disk drive. In one embodiment, a base is formed of a magnetic material. The attractive force caused by the magneti... | 04/18/2006 |
| 7030540 | Electric motor and compressor In an electric motor including a stator core having a plurality of layered steel thin plates, the rigidity of the stator core is maintained and the vibration during its operation is suppressed. Namely, at least parts of the thin plates of the stator core are adhered... | 04/18/2006 |
