Did You Know...
...that the Slinky toy was the result of a failed attempt by engineer Richard James to produce an antivibration device for ship instruments? His goal was to develop a spring that would instantaneously counterbalance the wave motion that rocks a ship at sea. Instead, he developed the Slinky.
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| Number | Title | Issue Date |
| 8148870 | Coil assembly for rotating electric machine A coil assembly for a rotating electric machine is a stator coil for use in the stator of a motor or the like, which includes a coil plate composed of at least two coil plate elements respectively provided with an internal peripheral portion and an external peripher... | 04/03/2012 |
| 8115361 | Coil assembly for electrical rotating machine, stator for electrical rotating machine, and electrical rotating machine The torque characteristic is improved using a magnetic flux efficiently, and an eddy-current loss generated in a coil is reduced. Moreover, a loss is suppressed even if a metal member having a high thermal conductivity is closely disposed or closely contacted to a c... | 02/14/2012 |
| 8093779 | Concentrated winding coil and method of manufacturing same A concentrated winding coil includes a plurality of coil layers each of which comprises a plurality of wire turns wound in alignment winding; and a bobbin including an inner flange, an outer flange and a bobbin body on which the wire is wound, wherein: each of the c... | 01/10/2012 |
| 8072115 | Foil coil structures and methods for winding the same for axial-based electrodynamic machines Disclosed are foil coil structures and methods for winding the same for stators in electrodynamic machines, as well as electrodynamic machines that implement such coil structures. In one embodiment, a foil coil structure is configured for implementation with a field... | 12/06/2011 |
| 8058766 | Electric rotational motor A rotational motor includes a stator formed by a core member including: a magnetic core portion extending in a radial direction of the rotational motor and formed into a fixed shape in every cross section thereof extending orthogonally relative to the radial directi... | 11/15/2011 |
| 8053943 | Linear material and stator structure A stator structure includes: a stator core (104) having a large number of concave slots (105) and a large number of convex magnetic poles (106) circumferentially alternately arranged; and magnet wires (101) of rectangular cross section in... | 11/08/2011 |
| 8049390 | Linear material and stator structure A stator structure includes: a stator core (104) having a large number of concave slots (105) and a large number of convex magnetic poles (106) circumferentially alternately arranged; and magnet wires (101) of rectangular cross section in... | 11/01/2011 |
| 8040012 | Electrical machinery incorporating double helix coil designs for superconducting and resistive windings An alternating current machine which generates a magnetic field or induces a voltage. In one embodiment the machine includes a stator and a rotor positioned about an axis. The stator includes three sets of coils, each set including at least a first pair of coil rows... | 10/18/2011 |
| 8035267 | Motor with sheet-like coil A spindle motor includes: a stator yoke having a circular cylinder shape; a rotor magnet disposed opposite to the stator yoke with an air gap therebetween; a sheet-like coil disposed at a surface of the stator yoke opposing the rotor magnet; and a bearing structure,... | 10/11/2011 |
| 8030818 | Stator coil with improved heat dissipation A stator coil includes a plurality of copper strands and a layer of high thermal conductivity polymer disposed adjacent at least one of the copper strands. The high thermal conductivity polymer includes a host polymer and a high thermal conductivity filler. The high... | 10/04/2011 |
| 7994678 | Polyphase transverse and/or commutated flux systems Disclosed are single- and poly-phase transverse and/or commutated flux machines and components thereof, and methods of making and using the same. Exemplary devices, including polyphase devices, may variously be configured with an interior rotor and/or an interior st... | 08/09/2011 |
| 7928626 | Linear material and stator structure A stator structure includes: a stator core (104) having a large number of concave slots (105) and a large number of convex magnetic poles (106) circumferentially alternately arranged; and magnet wires (101) of rectangular cross section in... | 04/19/2011 |
| 7915779 | Stator winding for a slotless motor A stator winding for a slotless motor is parallel with the longitudinal axis of the motor except at the end turns of the coil windings. The coils have concentrated windings with a pair of coils wired in series to form one phase of the stator windings. Each of the pa... | 03/29/2011 |
| 7911107 | AC electric motor A motor is provided, which includes: a rotor having rotor pole groups, in which N-poles and S-poles are alternately arranged in the circumferential direction; an N number (N is a positive integer) of stator pole groups, in which a plurality of stator poles are arran... | 03/22/2011 |
| 7868508 | Polyphase transverse and/or commutated flux systems Disclosed are single- and poly-phase transverse and/or commutated flux machines and components thereof, and methods of making and using the same. Exemplary devices, including polyphase devices, may variously be configured with an interior rotor and/or an interior st... | 01/11/2011 |
| 7868507 | Phase winding for a rotating electrical machine stator and stator equipped with same A rotating electrical machine stator comprising an annular cylindrical body including axial grooves, and at least one phase winding including corrugated turns of wire, the phase winding comprising a first outer half-phase and a second inner half-phase which are radi... | 01/11/2011 |
| 7825562 | Rotary electric machine, crank-shaped continuously winding coil, distribution winding stator and forming method thereof In a distribution winding stator using a coil for a rectangular conductor, a coil end is made smaller than before, and the reduction in the current density is aimed, so that a rotary electric machine of a small size and a high power output is obtained. A conductive ... | 11/02/2010 |
| 7800273 | AC electric rotating machine with multiphase stator coils A stator coil includes a belt-shaped winding band and a same-layer bridging portion. The winding band makes one or more rounds, while turning back in the axial direction a plurality of conductor wires which are aligned in parallel at a pitch of electric angle π (pi... | 09/21/2010 |
| 7777388 | Distributed coil stator for external rotor three phase electric motors A distributed coil stator (102) for external rotor electric motors includes a core having a cylindrical surface bounded by a first end surface and a second end surface, wherein a first set of openings (110) aligned in a first circular path (111)... | 08/17/2010 |
| 7759836 | Coil module for a stator of an electric motor, stator, electric motor, circulation pump and method of manufacturing a stator A coil module for a stator of an electric motor comprising a coil holder, a coil that is disposed on the coil holder, a first web and a second web is provided, wherein situated between the first web and the second web are a first coil portion and a second coil porti... | 07/20/2010 |
| 7750528 | Actuator and coil frame An actuator includes: a coil for excitation; a rotor rotatably supported; a stator effecting a magnetic force on the rotor for rotation, the stator having first and second leg portions arranged side by side; and first and second coil frames each having a body portio... | 07/06/2010 |
| 7705508 | Cooled conductor coil for an electric machine and method The invention includes an electric machine having a rotor, a stator and at least one electrical coil disposed in the machine and a source of coolant fluid in communication with the coil. The coil has concentric turns having spaces therebetween adapted to channel coo... | 04/27/2010 |
| 7679254 | Method and apparatus for producing a coil winding for stators or rotors of electrical machines, and stator or rotor produced thereby A method for producing a coil winding for stators is described, in which each coil turn rests, with one fillet (14) each, in two stator slots, and the two fillets (14) are joined by a head portion (16). A plurality of coil turns are made simulta... | 03/16/2010 |
| 7679253 | Stator assembly with cascaded winding and method of making same A stator assembly for a dynamoelectric machine featuring a cascaded construction includes several conductors, each having a plurality of slot segments interconnected by plurality of end loop segments. The consecutive slot segments of a first conductor forms nearly a... | 03/16/2010 |
| 7671504 | Electric motor with multilayered rhombic single coils made of wire An electric motor is disclosed with an air-cored winding which is composed of a plurality of single coils made of wire, wherein the single coils overlap each other in an imbricated manner and the single coils are preformed to form an offset at least in the region of... | 03/02/2010 |
| 7619345 | Stator coil assembly A stator coil assembly includes a cylindrical support tube with first and second pluralities of stator coils disposed radially around the support tube. Each stator coil includes first, second, third, and fourth linear segments, each having first and second planar br... | 11/17/2009 |
| 7573173 | Apparatus for axial magnetic field electric motor Apparatuses, circuits, and methods for driving an axial field electric motor, and systems using the same. The electric motor generally comprises a fixed magnet assembly having a plurality of fixed magnets arranged circularly around a shaft, a coil assembly including... | 08/11/2009 |
| 7569967 | Compact disk device and disk drive A disk device has a small size, a small thickness, a high efficiency, a small degree of vibration and a small level of noise. In one embodiment, the disk device comprises a disk for storing information and a disk drive for driving the disk. The disk drive includes a... | 08/04/2009 |
| 7528517 | Distribution of motor heat sources The disclosure is directed to an electrical motor that includes a rotor and stator with improved cooling of the motor. The improved cooling is due to a convenient coil connecting structure of the stator. Outer and inner peripheral connectors connect the coil wound e... | 05/05/2009 |
| 7474030 | Magnetic coils for electrical machines A magnetic coil 32 for an electrical machine is constructed from two sub-conductors 34A, 34B, each in the form of laminae of conducting material such as copper sheet, coated with an insulating material. At one end of the coil, the sub-conductors... | 01/06/2009 |
| 7430796 | Method for winding the stator of a multiphase electric motor In a method for winding the stator of a multiphase electric motor a plurality of mutually spaced stator teeth are assigned to each phase, wherein all the teeth of the stator are wound without a break in the winding wire, and wherein the winding wire is taken via a c... | 10/07/2008 |
| 7389576 | Method of manufacturing micro flux gate sensor A method of manufacturing a micro flux gate sensor that has a good electrical connection and can be easily manufactured includes operations of forming a metal pattern, forming a first insulation layer to cover the metal pattern and forming viaholes to expose a certa... | 06/24/2008 |
| 7382069 | Rotary electric apparatus with coil-end block from which lead wires are drawn out A rotary electric apparatus, such as motor, comprises a rotor and a stator arranged to face the rotor in the radial direction. The rotor rotates together with a rotation shaft. The stator has a cylindrical stator core, a stator winding wound in the stator core to ha... | 06/03/2008 |
| 7379742 | Multi-carrier communications with adaptive cluster configuration and switching A method and apparatus for allocating subcarriers in an orthogonal frequency division multiple access (OFDMA) system is described. In one embodiment, the method comprises allocating at least one diversity cluster of subcarriers to a first subscriber and allocating a... | 05/27/2008 |
| 7375449 | Optimized modular electrical machine using permanent magnets An electrical machine having a magnet assembly with a magnet carrier ring with an even number of permanent magnets mounted in the carrier ring around a circular locus, and a conductor assembly with one or more conductor circuits wound in a double helix wave winding ... | 05/20/2008 |
| 7368842 | Armature windings and dynamo-electric machine using the same An armature winding includes a plurality of strand groups each having strands transposed and bound in at least two rows and multiple tiers, and a main insulator for covering the strand group. The strands belonging to a strand group on one side of a central strand gr... | 05/06/2008 |
| 7367113 | Method for fabricating a transformer integrated with a semiconductor structure A substrate is provided and a top interconnection metal layer and a primary winding layer are formed thereon. Then a passivation layer having a plurality of via exposed parts of the top interconnection metal layer is formed on the substrate. A secondary winding laye... | 05/06/2008 |
| 7365462 | Alternator directly connected to engine An alternator is composed of a frame, a rotor rotatably supported in the frame, a stator contained in the frame outside the rotor and other associated components. A front end of the alternator is directly mounted on a mounting surface of an engine having a fairly la... | 04/29/2008 |
| 7365460 | Stator for an electrical machine In a plurality of stator coils arranged on the yoke, each coil has a pair of ends, each end being adjacent to a respective end of an adjacent coil to form pairs of adjacent ends. A plurality of mutually insulated concentrically arranged linking conductors each has a... | 04/29/2008 |
| 7365468 | Motor stator having transposed winding layers An electric motor is provided with a multi-layered winding stator core configuration. A plurality of individual layers of wire strands are successively formed on each stator pole of a pole pair. Each winding layer is fabricated of the same relatively thin wire gauge... | 04/29/2008 |
