Quotables
"During my service in the United States Congress, I took the initiative in creating the Internet."
Al Gore ; The basis for the later misquote by US Republicans that Gore had "invented" the Internet. Gore was the leading political champion of the modern-day Internet.
PatentStorm News
Make the Most of Our Site
See this month's Top Inventors and Most Cited Patents.
Stay on top of the latest innovations by subscribing to an RSS feed.
Registered users: Manage your profile.
| Number | Title | Issue Date |
| 7830057 | Transverse flux machine A transverse flux machine (TFM) includes a stator assembly that provides a plurality of U-shaped magnetic circuits placed circumferentially around a rotor assembly. The plurality of U-shaped magnetic circuits being comprised of a first stator segment, a second stato... | 11/09/2010 |
| 7560840 | Rotor arrangement for a unilateral transverse flux machine with flux concentration A rotor arrangement for a unilateral transverse flux machine with flux concentration which is in interaction via an air gap with a coaxially arranged stator arrangement with stator poles and interposed annular winding. The rotor includes rotor pole shoes in the circ... | 07/14/2009 |
| 7385329 | Electric machine for high magnetic reversal frequencies In electric machines, core losses limit, at high fundamental frequency, the permissible full-load power. The aim of the invention is to develop a design which enables a high power density at high magnetic reversal frequencies and which is easy to produce. To this en... | 06/10/2008 |
| 7301310 | Excitation controlled synchronous permanent magnet machine The present invention provides an apparatus and methods for providing constant voltage from a permanent magnet generator at varying prime mover speeds or under varying loads. A constant voltage permanent magnet generator includes a housing, a magnetized rotor, a pri... | 11/27/2007 |
| 7279820 | Transversal flux machine A machine with transversal flux comprises a stator and a rotor. Therein, either the stator has a coil arrangement and the rotor is provided with permanent magnet elements, or the rotor may have a coil arrangement and the stator is provided with permanent magnet elem... | 10/09/2007 |
| 7173352 | Stepping motor A stepping motor includes a magnet ring 1 whose outer peripheral surface is circumferentially divided to form radial protrusions and recesses and whose outer peripheral surface consists of a cylindrical permanent magnet magnetized to the same polarity, first ... | 02/06/2007 |
| 7148592 | Actuator, light quantity adjusting apparatus, and stepping motor An actuator maintains high efficiency, can react to an increase in pole, has a high part fit, and can be manufactured at low cost while it is thinned. The actuator includes: a magnet which is formed in a ring shape, in which at least one surface perpendicular to a c... | 12/12/2006 |
| 7102264 | Synchronous induction motor and manufacturing method and drive unit for the same, and hermetic electric compressor A synchronous induction motor features improved assemblability of a rotor, significantly reduced production cost, and improved operation performance of the motor. A plurality of die-cast secondary conductors is provided around a rotor yoke constituting the rotor of ... | 09/05/2006 |
| 7051421 | Method of fabricating a rotor An electric traction motor for a vehicle including a housing, a wound stator field located in the housing, a rotor magnetically interacting with the wound stator field, high energy magnets configured in the rotor, and low energy magnets configured in the rotor. ... | 05/30/2006 |
| 7034425 | Hybrid synchronous electric machine A hybrid synchronous electric machine driven by the transverse magnetic flux has a rotor and a stator, the rotor armature has a massive cogged iron rings (12) in close vicinity of active parts of the motor, and cogged iron rings (14, 15) as component p... | 04/25/2006 |
| 7026737 | Rotor for an electric machine, especially a synchronous machine, and synchronous machine with a transverse flux The invention relates to a rotor for an electric machine, especially a synchronous machine with transverse flux, especially a synchronous generator, especially a TFM rotor. The invention is characterized by the following features: a support element; a pole structure... | 04/11/2006 |
| 6979918 | Actuator An actuator according to the present invention includes: a rotor that includes a magnet that has a cylindrical shape, and an outer peripheral surface alternately magnetized into different poles in a peripheral direction, and a soft magnetic member that is fixed to a... | 12/27/2005 |
| 6936945 | Permanent magnet synchronous motor A structure of a rotor used in a synchronous motor employing both of permanent magnets and a stator using concentrated windings is disclosed. Slits (13) provided in a section of a rotor laminated in a direction of a rotary shaft are shaped like an arc or a bo... | 08/30/2005 |
| 6933646 | Electric rotating machine and electromagnetic machine and apparatus To simplify a winding structure of a stator and a rotor of an alternating current electric machine, in a winding a magnetic field formation of a magnetic pole portion is formed with a bobbin structure. In a structural aspect, an eddy current is lessened in an altern... | 08/23/2005 |
| 6924579 | Electrical machine A motor/alternator is formed by a single toroidal magnet and flux conductors which, in combination with flux switches, create an alternating magnetic circuit around a power coil. The motor/alternator geometry minimizes flux leakage. The form of the flux conductor an... | 08/02/2005 |
| 6891295 | Flywheel magneto generator A flywheel magneto generator which comprises a rotor having a magnet attached to an outer circumferential side of a flywheel and a stator constructed by winding a generating coil around a core having a magnetic pole portion opposed to a magnetic pole of the rotor, w... | 05/10/2005 |
| 6803690 | Electric motor excited by permanent magnets The electric motor with permanent-magnet excitation has a stator (1), a rotor (7) supported inside the stator and adjacent permanent magnets (8, 9, 10, 11) of opposite polarity arranged next to each other on a rotor surface facing the stator. Th... | 10/12/2004 |
| 6800970 | Motor and optical apparatus using the same A motor includes a cylindrical magnet, first outer magnetic pole portions which are formed by gapping part of a cylinder from the distal end in the axial direction of the motor, and which oppose the outer circumferential surface of the magnet, second outer magnetic ... | 10/05/2004 |
| 6741010 | Rotor disc assembly having rotor rim with alternate magnets and laminated pole pieces A rotor disc (14), for use in an electrical machine (10), has at least one circumferential rotor rim (16) mounted thereon. The rotor rim (16) comprises at least one row of alternate magnets (20) and laminated pole pieces (18... | 05/25/2004 |
| 6717313 | Magnetic circuit for rotating apparatus An energy conversion magnetic circuit is constituted with magnet pole pieces of magnets or armatures which are in parallel with respect to the shaft to obtain a dynamic force or an electromotive force. The magnetic circuit for a generator or an electric motor has a ... | 04/06/2004 |
| 6703743 | Motor or generator A motor or a generator which has permanent magnets on a moveable member effectively reduces eddy current loss in the permanent magnets. A permanent magnet 1 which is provided for the moveable member of a motor or a generator, for example the rotor of a ro... | 03/09/2004 |
| 6684483 | Method of fabricating a rotor for an electric traction motor A method of fabricating a rotor for an electric traction motor including the steps of forming cavities in the rotor, injecting magnetic material in a portion of the cavities, injecting nonmagnetic material in a portion of the cavities, and post-magnetizin... | 02/03/2004 |
| 6664704 | Electrical machine A motor/alternator is formed by a single toroidal magnet, which may be a hybrid magnet, having flux conductors which, in combination with flux switches, create an alternating magnetic circuit around a power coil. The motor/alternator minimizes the amount ... | 12/16/2003 |
| 6657348 | Rotor shield for magnetic rotary machine A magnet machine includes a magnet rotor. The rotor includes a sleeve and a magnet. The magnet is positioned within the sleeve. A highly electrically conductive, nonmagnetic shield surrounds the magnet. The shield reduces rotor eddy current losses and low... | 12/02/2003 |
| 6465916 | Motor A coil is disposed in an axial direction of a rotor magnet, outer and inner magnetic poles to be magnetized by the coil are opposed to outer and inner peripheral surfaces of the rotor magnet, and a holder for holding the centers of the magnetized portions... | 10/15/2002 |
| 6455970 | Multi-phase transverse flux machine Described herein is a multi-phase transverse flux machine, which comprises a stator with essentially U-shaped and I-shaped cores (1, 2) of a soft-magnetic material and respectively one stator winding (3) for each phase that generates a magnetic flux in th... | 09/24/2002 |
| 6411003 | Motor A rotor magnet includes a first polarized layer alternately polarized into different poles while being circumferentially divided into n parts, and a second polarized layer alternately polarized into different poles. An advance phase angle as θ1 with resp... | 06/25/2002 |
| 6411002 | Axial field electric machine An axial field electric machine having an improved efficiency includes a number of magnetic elements (e.g., as a rotor) as annular disks magnetized to provide multiple sector-shaped poles. Each sector has a polarity opposite that of an adjacent sector, an... | 06/25/2002 |
| 6288467 | Rotor for an electric machine, specially a transversal flow machine The invention relates to a rotor for an electrical machine, specially a transversal flow machine, having at least one pole structure. The pole structure encompasses two adjacent rows of magnet arrangements which are alternatively magnetized in the periphe... | 09/11/2001 |
| 6274960 | Reluctance type rotating machine with permanent magnets A reluctance type rotating machine includes a stator 1 having armature windings 2 arranged on an inner periphery of the stator 1, a rotor 3 having a magnetic unevenness in the circumferential direction and a plurality of permanent magnets 6 arranged for n... | 08/14/2001 |
| 6172440 | Motor A rotor magnet includes a first polarized layer alternately polarized into different poles while being circumferentially divided into n parts, and a second polarized layer alternately polarized into different poles. An advance phase angle as θ1 with resp... | 01/09/2001 |
| 6157107 | Motor with magnetic stator poles inside and outside the rotor magnet A motor includes a rotor including a permanent magnet circumferentially equally divided and alternately magnetized to different poles into a cylindrical shape. A first coil and a second coil are displayed inside and axially of the rotor. First outer magne... | 12/05/2000 |
| 6081053 | Motor A motor of an increased output is provided by forming a rotor, composed of a permanent magnet circumferentially divided into equal sections and alternately magnetized in different magnetic poles, in a cylindrical shape, positioning a first coil, the rotor... | 06/27/2000 |
| 6043579 | Permanently excited transverse flux machine The invention concerns a permanently excited transverse flux machine which requires only one permanent magnet segment per phase and per magnetic circuit. The magnetic flux generated by a permanent magnet segment (3) flows alternately through the soft magn... | 03/28/2000 |
| 5973436 | Electrical machine An electrical machine has a rotor shaft (12) which carries a plurality of rotor discs (14) for rotation therewith. Each rotor disc (14) has pairs of rotor rims (16) secured thereto. Each rotor rim (16) consists of a single row of alternate magnets (20) an... | 10/26/1999 |
| 5889348 | Rotor for an electric machine, particularly a transverse flow machine The invention relates to a rotor for an electric machine, specifically a transverse flow machine, comprising at least one support disk and at least one annular pole structure arranged on an end face of the support disk, coaxial to the rotor axis, and exte... | 03/30/1999 |
| 5773910 | Transverse flux machine A transverse flux machine includes an outer stator having a plurality of soft iron outer stator elements and an outer ring winding; an inner stator having a plurality of soft iron inner stator elements and an inner ring winding; and a rotor having a plura... | 06/30/1998 |
| 5289072 | Electrical machine A current rectifier-excited synchronous electrical machine includes a rotor defining an axis of rotation. The rotor includes a rotor shaft, a stator housing, and a central disk. The rotor shaft is mounted in the stator housing. The central disk extends ra... | 02/22/1994 |
| 5117142 | Permanent magnetized synchronous machine designed according to the transverse flux principle An electrical machine, according to the transverse flux principle, is constructed such that the magnetic flux flows in paths perpendicular to the direction of rotation of the rotor. The number of stator elements is double the number in the conventional tr... | 05/26/1992 |
| 4973868 | Electrical machine with permanent magnet excitation Contained in an electrical machine with a field excited by permanent magnets, on the rotor, are pole bodies that extend in ring fashion and coaxially with the rotor shaft, forming between stator pole shoes an air gap. The rotor consists of a specific sequ... | 11/27/1990 |
