Class 310/154.02 - Combined with generating coil

Subclass of Class 310 - Electrical generator or motor structure
Definition: Subject matter wherein at least one permanent magnet is
No. of patents: 29
Last issue date: 11/22/2011

Number	Title	Issue Date
8063517	Combination drive with a hybrid reluctance motor The aim of the invention is to create a combined linear-rotary drive that has a compact, simple, and inexpensive design. Said aim is achieved by a combined drive comprising a linear driving device (3) and a rotary driving device (11), at least one of t...	11/22/2011
7440689	Electromagnetically actuated adjusting apparatus for lens An electromagnetically actuated adjusting apparatus for lens is disclosed. The adjusting apparatus comprises a body capable of furnishing a lens inside, at least one permanent magnet, a first magnetic conductor and a second magnetic conductor. The first and the seco...	10/21/2008
7352073	Ocean wave energy converter having an improved generator and ballast control The ocean wave energy converter uniquely includes a generator with a rotating inner rotor surrounded by a counter-rotating outer rotor for generating electricity. A reciprocating drive rod drives the inner rotor on the downstroke of the drive rod and the outer rotor...	04/01/2008
7348703	Monopole field electric motor-generator with switchable coil configuration A pair of stators produce a magnetic field within a space between them a ferromagnetic toroidal rotor is rotationally mounted within the magnetic field. A plurality of windings are wound radially on the rotor and each winding provides a plurality of coils. Each of c...	03/25/2008
7265471	Apparatus and process for generating energy Energy is generated by an apparatus and process which utilize magnetic forces to move a rotor in a circular direction to turn a rotor shaft. This apparatus and process convert magnetic energy into mechanical force or electrical energy. ...	09/04/2007
7116006	Wind energy conversion system A wind energy conversion system includes upper and lower wind turbines having counter-rotating blade assemblies supported for rotation about a vertical rotation axis, with each blade assembly carrying a rotor for rotation past a stator to produce an electrical outpu...	10/03/2006
7042114	Hydro-electric farms An underwater hydro-electric farm comprising a plurality of electrical generator assemblies arranged in an array on a bottom surface of a body of water within an ocean current path to take generate power from a kinetic energy caused by the flow of the underwater cur...	05/09/2006
6998730	Hydro-electric farms An underwater hydroelectric farm comprising a plurality of electrical generator assemblies arranged in an array on a bottom surface of a body of water within an ocean current path to take generate power from a kinetic energy caused by the flow of the underwater curr...	02/14/2006
6954019	Apparatus and process for generating energy Energy is generated by an apparatus and process which utilize magnetic forces to move a rotor in a circular direction to turn a rotor shaft. This apparatus and process convert magnetic energy into mechanical force or electrical energy. ...	10/11/2005
6946767	Alternating current generator An alternating current electrical generator creates three different and distinct magnetic fields between would coil elements and rotating magnets, two fields of which are induced fields caused by magnet rotation. A plurality of magnets are positioned such that they ...	09/20/2005
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
6873235	Shear force levitator and levitated ring energy storage device One or more permanent magnets, or one or more permanent magnet arrays are used to produce shear force levitation. A primary application of shear force levitators is a levitated ring energy storage device. Such a levitated ring energy storage device includes a round ...	03/29/2005
6864608	Brushless generator with permanent magnets Disclosed is a brushless generator with permanent magnets, which provides high-speed operation, simple maintenance, lightweight, and stable power. The brushless generator with permanent magnets including a main generator with a stator and a rotor; and an auxiliary g...	03/08/2005
6707212	Electrical machine The present invention relates to an electrical machine which has one or several stators (2) edified by one or several statorpackages (21) that consists of one or several statorsections (22). The core (23) of the statorpackage is arranged ...	03/16/2004
6703731	Electric motor A permanent magnet direct current motor 10 has a permanent magnet stator with at least one permanent magnet 14. The magnet 14 faces poles of an armature core 26 across a small air gap. A speed sensor 12 is located in the air gap for detecting rotation of ...	03/09/2004
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
6563244	Composite-type electromagnet and radial magnetic bearing A composite-type electromagnet for a radial magnetic bearing has four composite-type electromagnet parts. Each part has four electromagnet cores formed of a magnetic material. The cores each have two protruding poles. A control coil is wound around each o...	05/13/2003
6563248	Hybrid-magnet DC motor Electromagnets are placed to face each other in a yoke. Both ends of pole cores of the electromagnets are extended and bent. Permanent magnets are sandwiched between the extended parts of the pole cores. The north pole and south pole of the permanent magn...	05/13/2003
6376957	Alternating current machine A generator or a 3-phase motor is arranged to provide multipolar permanent magnet excitation in combination with multipolar reluctance distribution wherein different numbers of poles are used for the permanent magnet excitation and for the reluctance dist...	04/23/2002
6373161	Periodic air gap electric generator A rotating machine that can generate standard AC, high-frequency AC, or DC electricity by non-conventional means. The method involves changing the air gap between a pole of a stationary magnet and a ferromagnetic member on a rotating disk-like flywheel. E...	04/16/2002
4755736	Generator system with integral permanent magnet generator exciter A generator system having self-build-up characteristics with an integral permanent magnet generator exciter. A rotor shaft is journalled in a housing. A main stator is secured within the housing, and a rotating field is magnetically coupled to the main st...	07/05/1988
4443724	Shaft transducer having DC output proportional to angular velocity A brushless DC tachometer is disclosed that includes a high strength toroidal permanent magnet (25) for providing a uniform magnetic field in an air gap, an annular pole piece (21) opposite the magnet, and a pickup coil (19) wound around the pole piece (2...	04/17/1984
4406983	Rotational magnetic transducer A magnetic transducer is provided having a plurality of magnetic poles arranged annularly about an axis to form a stator coacting with a rotor which rotates about the same axis to induce changes in the magnetic forces between the poles. Each of the poles ...	09/27/1983
4284916	Rotary signal generator A non-contact signal generator which is adapted for the conduction signal source for the semi-conductor ignition system of so-called current-breaking type or induced-energy accumulating type and which is of the permanent-magnet-energization, variable magn...	08/18/1981
4237394	Frequency generator and miniature motor provided with the same An improved frequency generator is disclosed. The frequency generator includes such a permanent magnet that is magnetized in the direction of the axis of a rotary shaft with which the rotor of the generator is rotated. Between the second magnetic pole sid...	12/02/1980
4221985	Vehicle tachometer generator A dynamoelectric machine for generating an electric current having the frequency thereof proportional to the shaft speed of the machine. The generator is preferably of the permanent magnet type particularly suitable for use as a wheel speed indicator or t...	09/09/1980
4082968	Speed detector for use on a dc motor A speed detector, particularly useful on a permanent magnet DC motor, for providing a pulse indication from movement of the rotor teeth. During one revolution of the motor, a pulse is provided for each motor tooth. In a preferred embodiment, the pulse pic...	04/04/1978
3939372	Contact-free pulse generators A contact-free electrical pulse generator, that utilizes a Hall effect device and a permanent magnet to generate lines of flux and provides two stable output states when cooperating with a flux conducting cam having a stepped peripheral circumference moun...	02/17/1976

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Class 310/154.02 - Combined with generating coil