Class 310/158 - Universal (A.C. or D.C.)

Subclass of Class 310 - Electrical generator or motor structure
Definition: Subject matter relating to universal motors which will operate
No. of patents: 29
Last issue date: 06/03/2008

Number	Title	Issue Date
7382072	Generator An efficient and reconfigurable permanent magnet generator that comprises a permanent magnet subassembly and at least one exciter is disclosed. The permanent magnet generator may comprise a mainframe comprising at least one exciter, and a permanent magnet subassembl...	06/03/2008
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
7274126	Motor armature having distributed windings for reducing arcing An armature for a brush commutated electric motor having a distributed coil winding arrangement for reducing brush arcing and electromagnetic interference (EMI). The winding pattern involves winding a first coil into a first pair of slots of the armature. A second c...	09/25/2007
7261524	Rotation support with improved thrust-bearing for rotors of pump electric motors A rotation support has improved thrust-bearing for rotors of electric motors of synchronous pumps. The rotation sup: a stator of the electric motor, in which a hollow body is housed for supporting and containing a permanent magnet rotor, an impeller being kinematica...	08/28/2007
7183688	Stator for an electric motor A stator for an electric motor having a stator core which has a number of stator teeth and stator slots located between the stator teeth, the stator slots being designed to receive stator windings, the stator slots being given different depths in order to accommodat...	02/27/2007
7155811	Method for manufacturing an armature of an electric motor An armature for a brush commutated electric motor having a distributed coil winding arrangement for reducing brush arcing and electromagnetic interference (EMI). The winding pattern involves segmenting each coil into first and second subcoil portions with differing ...	01/02/2007
7126245	Polyphase armature for a rotary electrical machine, and its method of manufacture The invention provides a polyphase armature (13) for a rotary electrical machine, comprising a body (14) carrying a plurality of phases (20 to 25), each of which comprises, firstly, an input (E1 to E′3) and an output (S...	10/24/2006
7119470	Permanent magnet electric rotating machine and electromotive vehicle using permanent magnet electric rotating machine A magnetic gap is provided between a permanent magnet of a rotor and an auxiliary magnet pole portion which is arranged adjacent to the permanent magnet in a peripheral direction. A gradual change in a magnetic flux density distribution of a surface of the rotor is ...	10/10/2006
7076975	Drive apparatus for a washing machine In a washing machine with a drive apparatus and a suds container on whose rear wall the drive apparatus is disposed, an isolation layer is provided between stator cores of the motor and a stator supporting part or a supporting element to suppress discharge currents ...	07/18/2006
7034477	Domestic electrical appliance including an electric motor Domestic electrical appliance, including a universal electric motor powered by direct current via an electrical circuit linked to a DC electrical voltage source, said circuit including a chopper arrangement, including a capacitor in parallel with the DC voltage sour...	04/25/2006
7015604	Stepping motor and method of manufacturing stepping motor A stepping motor includes: a rotary shaft; a rotor magnet mounted fixedly on the rotary shaft; a bearing member including a smaller-diameter portion and a larger-diameter portion, and supporting the rotary shaft; and a yoke including a plurality of magnetic pole tee...	03/21/2006
7000307	Method for reducing arcing for motor armature with distributed windings An armature for a brush commutated electric motor having a distributed coil winding arrangement for reducing brush arcing and electro-magnetic interference (EMI). The winding pattern involves segmenting each coil into first and second subcoil portions with differing...	02/21/2006
6930429	Motor armature having distributed windings for reducing arcing An armature for a brush commutated electric motor having a distributed coil winding arrangement for reducing brush arcing and electromagnetic interference (EMI). The winding pattern involves segmenting each coil into first and second subcoil portions with differing ...	08/16/2005
6903466	Wind-power generator pod constituted by the body of an electricity generator The pod of wind-powered generator is constituted by a rigid fairing in which at least one electricity generator for coupling to at least one wind-driven propeller is disposed. The rigid fairing of the pod is formed by the body of the generator in which there are mou...	06/07/2005
6713926	Thin and lightweight inner rotor motor and disk unit using the same There are provided a rotor having plural magnetic poles disposed in a circumferential shape, and a stator including a stator core having plural magnetic pole teeth that are outside a circumference of the rotor and face the rotor, a coil being wound around each of th...	03/30/2004
6469412	Universal electric motor with variable air gap The present invention relates to a universal electric motor with variable air gap. It has a rotor (1) with on or more attraction steps and a stator (2) provided with an excitation system. The excitation system comprises, mounted consecutively distanced on...	10/22/2002
6411004	Internally loaded universal motor An internally loaded universal motor has a stator, a rotor, brushes and a loading device for generating an internal load on the universal motor. The shaft has a commutator, and a rotor core adjacent to the commutator. The rotor core is electrically connec...	06/25/2002
6161274	Dynamoelectric machine and processes for making the same Disclosed are methods of making dynamoelectric machines which include use of two sheet metal cup-shaped members to form a housing that completely surrounds and encloses the stator. The stator is assembled with a can in such a manner that the core of the s...	12/19/2000
6011337	Double-sided, non-iron core, brushless, axial magnetic field permanent-magnet type DC motor A double-sided, non-iron core, brushless, axial magnetic field permanent-magnet type DC motor includes a shaft, two electromagnet units parallelly mounted on the shaft, and a permanent magnet unit mounted on the shaft between the electromagnet units and h...	01/04/2000
5892311	Induction generator having a pair of magnetic poles of the same polarity opposed to each other with respect to a rotation shaft An induction generator having a pair of magnetic poles of the same polarity opposed to each other with respect to a rotation shaft is characterized by a high energy conversion efficiency. The induction generation has a rotation shaft driven by an external...	04/06/1999
5633551	Machine with transverse flux In order to achieve high potency for magnetic circuits together with a favourable possibility of constructing them in four-phase and two-phase form using radially positioned permanent magnets in flux concentration mode, it is proposed to introduce E-shape...	05/27/1997
5563467	Electromotor brush holders using a punched grid A brush holder for a commutator electromotor comprises a backing plate of an electrically insulating, injection-moulded plastic material on which are located accommodating means for electric components, and further comprises two oppositely arranged cases ...	10/08/1996
5280210	Universal electric motor with a switch ring mounted adjacent the brushes An electric motor comprises bracket shaped end plates having extensions that lead directly to the stator and are connected to the stator by introducing the extensions into grooves. The motor includes a layered arrangement of components on the collector-si...	01/18/1994
5196747	Universal electric motor In the case of a universal electric motor for any kind of drive, with a stator package, a rotatably mounted rotor with commutator, as well as end shields on both sides that also constitute the bearings for the rotor and a switching ring that can be rotate...	03/23/1993
5102306	AC/DC air pump An AC/DC air pump used for filling air into car tire, the housing of the air pump accomodates a driving motor with radiative fan, by applying a large gear driven by motor, and the large gear is gearing the link eccentrically to drive the piston of air cyl...	04/07/1992
5063319	Universal motor with secondary winding wound with the run field winding In a 2 pole universal motor for a circular saw a secondary winding provides dynamic braking. Both run and brake windings are split electrically with respect to the armature. All windings are double-ended and wiring and winding is arranged so that all wind...	11/05/1991
4700189	Linear resolver A linear synchro/resolver comprised of an opposed pair of stator assemblies, each of which has a plurality of corresponding, opposed, toothed pole piece pairs, a toothed slider movably mounted between the opposed sets of pole piece pairs, and wherein the ...	10/13/1987
4322647	Motor assembly A universal electric motor assembly having its various components mounted directly or indirectly on a stator core so that it avoids the requirement of a specialized motor housing while allowing a simplified progressive assembly. The stator core includes a...	03/30/1982
4065705	SCR controlled universal motor In an SCR circuit controlled universal motor, means is provided for smooth speed control at all speed settings especially low settings which comprises a series wound stator field as part of the motor and at least one closed conductor loop of wire encircli...	12/27/1977

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Class 310/158 - Universal (A.C. or D.C.)