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5304886 |
Printed circuit motor
A stepping motor having a printed circuit rotor including a first printed circuit on one side of the rotor formed in a plurality of spiral coil windings, and a second printed circuit on the other...
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5278470 |
Homopolar machine which acts as a direct current (DC) high voltage generator or motor
A homopolar machine for producing high voltage, direct current. The machine comprises a stator which supports the homopolar machine, a plurality of excitation coils disposed within the stator for...
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5270598 |
Solid connector for stator phase winding and method of assembly
A solid series connector for electrically connecting a first half-coil to a second half-coil in a stator phase winding includes first and second solid conductor members which are fixedly...
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5266858 |
Armatures and method for manufacturing such armatures
An armature for an electric motor has an improved integrated armature coil body. The integrated armature coil body includes an annular and substantially flat portion projecting a minimum distance...
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5262746 |
Ribbon coil for motor winding
The specification discloses a ribbon coil for a motor winding which is generally constructed as a roll having an inside wall and an outside wall by spirally winding a ribbon wire. The ribbon wire...
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5237232 |
Rotor of AC generator
A rotor for an AC generator includes first and second iron cores which function as magnetic poles for the rotor and which are fixed to a shaft. A plurality of magnetic teeth project from the...
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5204570 |
Spheroidal machine
A dynamoelectric machine that is both inexpensive and efficient has a rotor including one or more permanent magnets, the working faces of which lie in a spheroid and are centered on the equator of...
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5191250 |
DC motor with U-shaped rotor-coil wire having inclined intermediate portion
A DC motor includes a cylindrical rotor core and a rotor coil wound around the rotor core. The rotor core has shallower slots and deeper slots, circumferentially and alternately disposed in the...
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5191257 |
Armature of DC motor
The present invention relates to an armature of a wave winding type for a D.C. motor wherein the number of commutator bars is reduced to half the number of slots in the armature coil. Each armature...
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5177392 |
High efficiency, low reactance disk-type machine including an improved rotor and stator
An improved disk-type machine having a plurality of alternating stator and/or rotor sections is disclosed. The stator of the machine has microlaminated stator teeth molded from cut steel particles,...
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5175396 |
Low-electric stress insulating wall for high voltage coils having Roebeled strands
A wall structure for insulating the exterior surface of a high voltage coil having Roebeled windings is provided that comprises an inner insulating layer formed from a hardenable epoxy material for...
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5172870 |
Method of winding an armature and armature produced by the method
A method of winding an armature provided with armature slots and a commutator having commutator segments provided with attachment elements. The armature and commutator are mounted on an armature...
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5164626 |
Coil element and heat generating motor assembled therefrom
A heat generating motor capable of efficiently producing a high flow rate current of a fluid heated to a high temperature, and produced minimal magnetic vibration, including component coil blocks,...
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5155403 |
Coil winding armatures and arrangement of parallel coils
A method of winding a motor armature includes providing a sub-assembly comprising a shaft having an armature core and a commutator mounted thereon, the commutator having commutator bars spaced...
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5148071 |
Swing-type actuator with thin reinforced movable coil
The swing-type actuator includes (a) a housing comprising a pair of yokes opposing each other and a permanent magnet attached to at least one of the yokes for defining a magnetic gap therebetween,...
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5144183 |
Flat motor of reduced length
There is disclosed a flat motor of reduced length and maximized power output and which is suitable to being disposed in a limited space configuration and a close tolerance within other objects...
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5140292 |
Electrical coil with overlying vitrified glass winding and method
A coil has one or more layers of primary and secondary windings about a bore liner, with the primary and secondary windings separated by a winding of glass threads. The coil is heated in an oven to...
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5134332 |
AC spindle motor and method of changing rotating speed of same
An ac spindle motor (10) for driving a spindle motor of a machine tool provided with a rotor (14) having an output shaft (12) connected to the spindle, and a stator (16) surrounding the rotor and...
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5130595 |
Multiple magnetic paths machine
Separate multiple flux paths for an electrical generator or motor are provided in a single rotor machine by axially mounting a plurality of pole pieces on the rotor shaft. Each pole piece includes...
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5126613 |
Coil pattern of frequency generator
The invention can increase the induced voltage by arranging two adjacent frequency generating coils serially, and also suppress the variation of the induced voltage by omitting the teeth pattern of...
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5126606 |
Electric drive motor, especially for control and regulation purposes
Electric drive motor, especially for control and regulation purposes, with a pole and coil arrangement for generating a rotating or linearly advancing armature field, which contains pole-forming...
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5122703 |
Integrally molded armature for swing-type actuator
A swing-type actuator comprising (a) a housing comprising two yokes and permanent magnets attached to the yokes with their different magnetic poles opposing each other, a magnetic gap existing...
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5105111 |
Electrical machine especially a D-C motor
A direct - current electric machine includes a rotor rotatable about an axis of rotation and a stator formed with a plurality of locations angularly equispaced thereon and provided with a...
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5105115 |
Dynamoelectric machine
A dynamoelectric machine having a stator which is composed of a stator core formed of a mold resin containing silicon steel powder, and a magnetic field generating coil having coil turns arranged...
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5099159 |
High-voltage insulating system for electric machines
In an insulating system for high-voltage machines, a three-layer insulating tape is proposed as turn-to-turn insulation which comprises a center mica layer (1) which is covered on both sides by...
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5099164 |
Stator end member winding support shroud
A unitary end bell 66 includes a body 90 and a bridging section 92, and is assembled with a lamination stack 74 in the formation of a stator subassembly 150. End bell 66 is formed with base...
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5097169 |
Spool connection for brushless alternator
A brushless alternator for a vehicle comprising a field coil holding device formed by mounting a field coil winding spool directly on a field core using a bonding agent thus eliminating the need...
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5079468 |
Miniature motor with revolution-detecting generator
A miniature motor with a revolution-detecting generator, the motor having a stator formed by a permanent magnet on the motor housing and a rotor consisting of a winding on a core. Electric current...
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5066881 |
Semi-conducting layer for insulated electrical conductors
A semi-conducting pyrolyzed glass fiber layer equalizes the electrical potential on the exterior surface of an insulated conductor when the layer covers the surface. The layer prohibits the...
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5066638 |
Superconducting motor with multiple winding rotor
A superconducting motor (1) comprises a stator (3) and a rotor (5), both of which employ superconductive windings. The rotor includes two sets of windings, a large rotor winding (13) and a small...
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5065059 |
Field coil pole to pole connector with high cyclic duty capability
A high start/stop cyclic capability connector to interconnect the field coil poles in a rotating electric machine. The connector includes a U-shaped intermediate portion with parallel jaws which...
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5057732 |
Electric motor having a molded housing and connector plates projected thereon
A stator coil used in an electric motor, including a bobbin formed by insulating material and composed of a hollow cylindrical portion and two end plates provided projectingly toward the outside in...
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5045740 |
Brushless motor
A brushless motor comprising: a rotor constituted by a permanent magnet having a plurality of circumferentially alternately equally magnetized N and S magnetic poles; a stator having a plurality of...
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5039896 |
Main field coil connector with high cyclic duty capability
An improved connector for the main field coil of a rotating electric machine having high start/stop cyclic duty capability. The connector is generally L-shaped with the field coil connection...
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5023734 |
Cylindrical rotary transducer
In a cylindrical rotary transducer having a stator core cylindrically formed from a high permeability material, a rotary core disposed coaxially with the stator core and cylindrically formed from a...
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5006765 |
DC motor with coreless coil installation
In a coreless coil type cylindrical air gap dc motor, a ring flange is provided. Connections to the coil are formed in the ring flange by conductor paths in the form of stamped metal strips lying...
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5004941 |
Stepper motor with input connector array
A stepper motor in which the end portions of each of a pair of conductors are connected to their corresponding terminal processing units arranged in one array in the circumferential direction...
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4996455 |
Inductive energy converter with spaced winding contacts
An inductive energy converter includes a coil assembly having coil windings, with at least some of the coil windings respectively having spaced contact regions. A contact bar within the coil...
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4990812 |
Solenoid type electric generator
An axially short solenoid type electric generator comprising a stator attached on the inner circumferential surface of the left half of a short cylindrical case, and a rotor accommodated within the...
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4990808 |
Symmetrical resonant scanner and drive
A resonant rotationally oscillating mechanical system has masses supported by a resilient structure held at both ends on a stationary base to define a natural resonance frequency of intended...
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4975607 |
Frequency generator with superimposed generation coil
A frequency generator includes a circuit board having one surface on which a generating coil pattern and a wiring pattern are printed in stacked relationship via an insulating layer. In a preferred...
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4975611 |
Insert sheet for insulating the field winding of an electric motor
An insert sheet formed of insulating material includes an outer border portion and a pair of door-like panels foldably mounted on the border portion, the insert sheet being disposed with its border...
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4962331 |
Rotatable control signal generator
A rotary control signal generating device, such as a resolver, which comprises an internal stator including a magnetic system having first and second ring-shaped pole pieces with generally...
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4962329 |
Spirally layered and aligned printed-circuit armature coil
An armature coil has sets of unit coil groups, each comprising an even number of unit coils, which are printed and arranged on a belt-like, thin and pliable insulating material to form a printed...
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4954734 |
Three phase alternator with common neutral leads
A stator of a vehicle mounted alternator having a rotor and a rectifier includes an armature core formed in an inner periphery thereof with a plurality of slots and three-phase armature coils wound...
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4945273 |
High efficiency electrical machine
A rotor has outside conductors and inside conductors. The outside conductors are connected together at spaced connection points to form an outside loop which is preferably triangular. Each inside...
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4942323 |
Two pole electric motor with stator winding encircling the rotor
A two pole electric motor is described which includes at least one stator encircling winding which at least partially overlaps the rotor air gap to insure that substantially the entire magnetic...
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4939400 |
Transmission apparatus having split-coil type coaxial coupler
An apparatus for transmitting electric power and information signals between a rotating element provided at a rotating shaft and a fixed element provided at the circumference of the rotating shaft....
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4937485 |
Coil/magnet structure for a brushless DC motor
A brushless dc motor, suitable for use as a hand-held surgical tool, includes a plurality of coils arranged in a substantially electrically non-conductive environment closely juxtaposed to a...
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4924126 |
Solenoid for coaxial type starter device
A coaxial type starter device comprises an armature rotary shaft disposed in a dc motor, a rotary output shaft having a pinion at its one end and supported so as to be slidable in the axial...
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