Class 310/154.06 - Plural sets of magnets

Subclass of Class 310 - Electrical generator or motor structure
Definition: Subject matter including plural sets of permanent magnets,
No. of patents: 31
Last issue date: 11/16/2010

Number	Title	Issue Date
7834503	Immersed windings, monopole field, electromagnetic rotating machine A rotating electromagnetic apparatus has a stator frame supporting spaced apart pairs of permanent magnets which are arranged with like magnetic poles mutually facing. A toroidally shaped rotor frame is radially wound with a plurality of wire coils immersed within s...	11/16/2010
7402929	Magnetic motor with magnet assemblies A magnetic motor that includes a plurality of rotor magnet assemblies, a plurality of drive magnet assemblies that are laterally moveable with respect to the rotor magnet assemblies, a timing assembly for generating power pulses selectively supplied to the drive mag...	07/22/2008
7336006	Magnetic actuator with reduced magnetic flux leakage and haptic sense presenting device A magnetic actuator, comprising a magnet, mutually opposite magnetic poles thereof being arranged opposing each other, and a coil, at least one portion thereof being inserted between the corresponding magnetic poles, wherein a driving force for the coil is generated...	02/26/2008
7304398	Spring activated energy transducer generating A/C electricity from natural forces-frictionless magnetic plate A spring activated energy transducer is provided. The energy transducer of the current invention generates alternating current (A/C) electricity from abundant external natural forces. The energy transducer is comprised of an upper part and a lower part. The upper pa...	12/04/2007
7291958	Rotating back iron for synchronous motors/generators The present invention relates to systems and methods for a synchronous motor/generator including at least one back iron element which is rotated along with a rotor of the motor/generator. Rotation of the back iron(s) mitigates eddy current losses and improves effici...	11/06/2007
7159295	Method of making a miniature electric motor A miniature PMDC motor 10 has a permanent magnet stator comprising two arcuate ceramic magnets 20 fitted to a can-like housing 11 and circumferentially separated by interdisposed rubber magnets 21 wedging or nipping the ceramic magnets	01/09/2007
7128849	Phosphors containing boron and metals of Group IIIA and IIIB A phosphor comprises: (a) at least a first metal selected from the group consisting of yttrium and elements of lanthanide series other than europium; (b) at least a second metal selected from the group consisting of aluminum, gallium, indium, and scandium; (c) boron...	10/31/2006
7071591	Electromagnetic circuit and servo mechanism for articulated cameras An electromagnetic circuit that may be advantageously employed in an articulated camera, such as a CCTV camera, as a part of a servo mechanism to directly drive the camera and optical lens assembly, for example, in the pan and/or tilt axes. In one embodiment, the co...	07/04/2006
7038565	Rotating dipole permanent magnet assembly A permanent magnet assembly is disclosed that utilizes at least two rotating magnet subassemblies, and first and second stationary magnet subassemblies arranged so that their magnetic vectors oppose each other. At a first rotational position of the rotating magnet s...	05/02/2006
6940206	Coreless motor To realize a small-sized coreless motor featuring excellence in responsiveness and controllability, capability of obtaining greater rotating torque compared with driving power supplied to the coil, great intensity, ease in assembly and high energy efficiency, a core...	09/06/2005
6927518	Direct current machine having continuously arranged magnetic poles When one of armature coils is in a beginning of a commutation process, a center line of a trailing end tooth of a corresponding group of teeth, around which the one of the armature coils is wound, is generally aligned with a corresponding boundary between magnets. W...	08/09/2005
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
6845617	Center housing design for electric assisted turbocharger An electric assisted turbocharger has an electric motor with a stator and a rotor that is coupled to a turbocharger shaft carried by a bearing assembly. The stator has a left-hand winding and a right hand-winding each projecting axially outwardly therefrom. The wind...	01/25/2005
6831387	Rotating electrical machine with permanent magnets and method of making same An improved rotating electrical machine having permanent magnets and method for attaching the magnets that permits the use of thin, high flux density materials. The magnets and their mounting plate have facing cylindrical surfaces that are spaced slightly apart and ...	12/14/2004
6806607	Electric motor A miniature PMDC motor 10 has a permanent magnet stator comprising two arcuate ceramic magnets 20 fitted to a can-like housing 11 and circumferentially separated by interdisposed rubber magnets 21 wedging or nipping the ceramic magnets	10/19/2004
6703746	Interior permanent magnet 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 ...	03/09/2004
6564732	Actuating device for material pressing device of sewing machine or sewing means An actuating device intended for a sewing device or sewing machine includes a material pressing device for holding down the material to be sewn during stitch formation and transport, and at least one linear motor which serves as regulating element for the...	05/20/2003
6496002	Rotation detector having a plurality of magnetism detection elements, a plurality of magnetic resistors which are able to switch the resistance from great to small and vice-versa A rotation detector includes a rotor having a shaft. Projections are located at predetermined intervals on the periphery of the rotor and extend in an axial direction. Magnets are located between the projections and the shaft. The flux of each magnet is d...	12/17/2002
6064135	Electromechanical machine and armature structure therefor The coils on the disc-type armature of an electromechanical machine are all wound in the same direction (rotational sense). The coils on each face of the armature are formed into at least two series connected groups of coils which are disposed on the surf...	05/16/2000
5661354	High torque DC electric motor with simultaneous battery charging system A DC electric motor system includes a rotor portion having a commutator and a coil winding mounted radially about a shaft, and a stator portion including two rows of spaced permanent magnets about either side of the rotor coil winding. Pick-up coils are m...	08/26/1997
5646467	Axial airgap DC motor An axial air gap motor comprising a housing having a first endplate and an opposed second endplate, a stator assembly mounted within the housing, and a rotor assembly rotatable mounted within the housing. The rotor assembly includes an annular disc shaped...	07/08/1997
5455474	Magnetic motor construction The present invention relates to an apparatus having spaced permanent magnets positioned so that there is magnetic interaction between them, and controlling the interaction by having a coil in the space between the permanent magnets connected to a source ...	10/03/1995
4774425	Magnetic means for reducing the torque required to drive the rotor of an electrical generator In an electrical generator of the type wherein coils are driven through the magnetic fields of magnets, or vice versa depending on which are mounted on the rotor and which on the stator, the coils are attracted to the magnets and this attractive force req...	09/27/1988
4639624	Torque motor having a coil with finite turning range A torque motor including a housing, a shaft member extending through the housing and supported by bearings, a stationary core in the housing and at least one coil fixed to the shaft member and arranged for rotation with respect to the stationary core with...	01/27/1987
4605873	Electromechanical machine An electromechanical machine is disclosed which comprises a field producing assembly mounted in a housing so as to define an air gap circumferentially disposed about an axis of rotation. The field assembly is structured to produce a distribution of magnet...	08/12/1986
4604540	Coreless motor, and a method for manufacturing the coreless motor A rotor winding of air-core disc shape is formed by winding an insulation-coated conductor so as to enclose a yoke of disc shape with only minor gaps at the outside of the yoke. The conductor of this rotor winding extends in the radial direction through t...	08/05/1986
4390805	Electromechanical machine A disc-type motor characterized by increased efficiency is disclosed. The motor has two parallel spaced stator members each having a flat circular shape and an even plurality of pie-segmented permanent-magnet poles in a circular array thereon, illustrativ...	06/28/1983
4237396	Electromagnetic machines with permanent magnet excitation An electromagnetic machine (particularly an electric motor) based on the design described in British Patent Application No. 48794/74. Iron losses in this type of machine are reduced by laminating the rotor backing plate (2,4). Although a spiral lamination (FIG...	12/02/1980
4188556	Electro-mechanical machine A disc-type motor characterized by increased efficiency is disclosed. The motor includes first and second parallel spaced stator members made of magnetic material in fixed relation, each of the stator members having a flat circular shape and an even plura...	02/12/1980
3979619	Permanent magnet field structure for dynamoelectric machines A dynamoelectric machine has a stator and a discoidal rotor with an axial air gap between them. The machine has a permanent magnet field structure wherein each flux-producing component comprises a mosaic of at least one layer of two or more unit permanent...	09/07/1976
3971963	Electomagnetic rotary motion device and exposure control device using the same Herein disclosed is an electromagnetic rotary motion device including permanent magnets establishing a pair of spaced concentric and coextensive circular or semicircular air gaps and a rotor unit including armatures which are movable in a circular path in...	07/27/1976

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Class 310/154.06 - Plural sets of magnets