Did You Know...
...that Robert Adler has the dubious distinction of being the Father of the Couch Potato? Back in 1955 Adler was employed by what was then Zenith Radio Corp., where he was charged to invent something that would allow viewers to turn down the TV volume without leaving their chairs. After a series of flops (such as a wired contraption that people tripped over), Adler hit on the idea of using sound waves. Thus the Remote Control was born...
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| Number | Title | Issue Date |
| 6777844 | Brushless motor A vacuum cleaner assembly includes a motor having a rotor and a stator for providing motive power to the assembly. The rotor and stator each include armatures having tips. In one aspect, the widths of the rotor and stator tips are different. In another aspect, the r... | 08/17/2004 |
| 6777843 | Resolver integrated type motor A resolver-integrated motor has a radial irregular shape which is formed at an end on a non-load side of its motor shaft. This radial irregular shape is used as a resolver rotor. The radial irregular shape is formed by grinding or turning the motor shaft made of a c... | 08/17/2004 |
| 6777836 | Heat transfer enhancement at generator stator core space blocks A ventilation pathway for a cooling gas to flow extends on a radial axis in a generator stator core. The ventilation pathway comprises at least two magnetic laminations and a plurality of space blocks extending radially in the generator stator core. The space blocks... | 08/17/2004 |
| 6774529 | Rotor body The invention relates to a rotor body, especially for the rotor of the starter or the starter-generator of an internal combustion engine. Said rotor body is provided with a hub (4) that extends coaxially with respect to the axis of rotor rotation (A). The inv... | 08/10/2004 |
| 6774524 | Motor core and motor using the same A motor generating cogging torque has one-quarter the cycle of basic cogging torque and an extremely small absolute value. First, in order to reduce the cycle of the cogging torque to one-half the cycle of the basic cogging torque, a basic configuration of the core ... | 08/10/2004 |
| 6774523 | Electric motor An electric motor, more particularly, a rotor structure of an electric motor comprises: a stator including a plurality of teeth and coil wound on the teeth to form rotary magnetic flux by applied electric source; a rotary shaft; and a rotor rotatably installed in th... | 08/10/2004 |
| 6774520 | Thin inner rotor motor and disk device using the motor An inner rotor motor includes a rotor which has a plurality of circumferentially arranged magnetic poles and a stator which is positioned outside a circumference of the rotor and has a stator core which includes a plurality of magnetic pole teeth which face the roto... | 08/10/2004 |
| 6772503 | Rotor assembly having bonded lamination stack A rotor assembly includes a stack of laminations that are bonded together by a dielectric bonding agent. The laminations and the dielectric bonding agent have matching coefficients of thermal expansion. ... | 08/10/2004 |
| 6769167 | Method of manufacturing a rotor for a synchronous reluctance motor A rotor for a synchronous reluctance motor of flux barrier type and manufacturing method thereof constructs a rotor for a synchronous reluctance motor by forming a magnetic core steel plate of disc shape on which a shaft hole is formed at center part, and a pluralit... | 08/03/2004 |
| 6762532 | Stator assembly structure of a direct current brushless motor A stator assembly structure of a direct current brushless motor includes a coil seat having a fitting hole for passage of the magnetic conducting tube. An upper pole plate and a lower pole plate are mounted above and under the coil seat respectively. At least one up... | 07/13/2004 |
| 6762531 | Motor assembly having improved flux properties A motor assembly having improved flux density includes a field assembly and an armature assembly rotatably received by the field assembly. The field assembly includes a plurality of like laminations stacked upon each other wherein each field lamination comprises a p... | 07/13/2004 |
| 6762529 | Lamination features for stator grounding A spindle motor incorporates a shaft having a known outer diameter and a stator having a known inner diameter which is slightly larger than the outer diameter of the shaft so that it may slip over the shaft. Die cut sharp features are defined in the inner diameter o... | 07/13/2004 |
| 6762525 | Cascaded rotary electric motors having axial and radial air gaps A cascaded motor arrangement is configured with a plurality of rotor/stator sets that extend in an axial direction. A stator set contains a plurality of separate electromagnet core segments disposed coaxially about an axis of rotation. The core segments may be affix... | 07/13/2004 |
| 6762519 | Outer rotor structure for an ac fan An outer rotor structure for an ac fan includes a plurality of annular pole plates used to stack on each other to form an outer rotor. Each of the pole plates includes an axial hole, a plurality of poles, at least one aligning member and a plurality of recessions. T... | 07/13/2004 |
| 6760965 | Method for manufacturing an alternator A method for manufacturing an alternator includes preparing a winding assembly formed by bending strands of wire so as to have straight portions which fit into slots, forming a base core by laminating plate-shaped magnetic members formed with the slots, stacking the... | 07/13/2004 |
| 6759785 | Stacked stator core and method of manufacturing thereof, and rotary motor and method of manufacturing thereof The present invention relates to a structure of a stacked stator core formed when rotary motors are manufactured and to a method of manufacturing the stacked stator core. It is possible to improve the workability in the winding process and the productivity of the st... | 07/06/2004 |
| 6759784 | Spindle motor having spindle motor stator with laminate layers for increased head stack assembly access A spindle motor for use in a disk drive having a rotatable head stack assembly. The spindle motor has a spindle motor hub. The spindle motor further has a magnet radially attached about the spindle motor hub. The spindle motor further has a spindle motor stator. The... | 07/06/2004 |
| 6759782 | Pole piece assembly A pole piece assembly (28) for an electric motor (20) formed of stacked interlocked lamina (46) that define a first set of stacked lamina (50) and a second set of stacked lamina (52). Each of the lamina (46) of the first ( | 07/06/2004 |
| 6759777 | Permanent magnet type electric rotating machine A permanent magnetic type electric rotating machine includes: a stator having armature winding arranged in several slots formed in a stator core; and a rotor having permanent magnets held in several permanent magnetic insertion holes formed in a rotor core, in which... | 07/06/2004 |
| 6759776 | Permanent magnet type electric rotating machine A permanent magnetic type electric rotating machine includes: a stator having armature winding arranged in several slots formed in a stator core; and a rotor having permanent magnets held in several permanent magnetic insertion holes formed in a rotor core, in which... | 07/06/2004 |
| 6753637 | Exciter rotor assembly A rotor and a method of constructing a rotor are disclosed. The rotor includes a hub that is capable of being supported by a shaft that extends along an axis, a plurality of laminations, and a plurality of wire windings supported by the plurality of laminations. The... | 06/22/2004 |
| 6753633 | Construction of an electrical machine with individual pole windings An electrical machine with a single-pole winding substantially built from bodies, whereby at least one of said bodies is structured from a number of segments at least corresponding with the number of poles of the electrical machine. At least one of the inductively e... | 06/22/2004 |
| 6750583 | Motor core and motor using the same A motor generating cogging torque has one-quarter the cycle of basic cogging torque and an extremely small absolute value. First, in order to reduce the cycle of the cogging torque to one-half the cycle of the basic cogging torque, a basic configuration of the core ... | 06/15/2004 |
| 6745458 | Laminated magnetic core and method for making A method of manufacturing an elongate stack of interlocked laminae in a die assembly. The method includes the steps of stamping a first lamina having generally opposed first and second edges in the strip stock material, stamping at least one first interlock means fo... | 06/08/2004 |
| 6745456 | Apparatus and method of making a rotor core with elimination of outer periphery machining An apparatus and an associated method are utilized to make a rotor core. The apparatus includes a support for supporting a lamina stack that has an axis extending along the stack. The apparatus includes a plurality of collets. A collet moving mechanism moves the col... | 06/08/2004 |
| 6747387 | Motor core and motor using the same A motor generating cogging torque has one-quarter the cycle of basic cogging torque and an extremely small absolute value. First, in order to reduce the cycle of the cogging torque to one-half the cycle of the basic cogging torque, a basic configuration of the core ... | 06/08/2004 |
| 6747386 | Motor core and motor using the same A motor generating cogging torque has one-quarter the cycle of basic cogging torque and an extremely small absolute value. First, in order to reduce the cycle of the cogging torque to one-half the cycle of the basic cogging torque, a basic configuration of the core ... | 06/08/2004 |
| 6747385 | Motor structure A motor structure includes a stator and a rotor. The stator includes a coil assembly which includes a ring-shaped slot having an inner periphery on its inner side and an outer periphery on its outer side away from the inner periphery, a plurality of first teeth moun... | 06/08/2004 |
| 6742238 | Flare tooth stator for an AC generator A stator core extends along a longitudinal axis and includes a yoke, and a plurality of radially-inwardly projecting teeth separated by intervening slots. A radially innermost portion of each tooth initially includes a pair of legs separated by a recess disposed the... | 06/01/2004 |
| 6744172 | Heat-dissipating fan A heat-dissipating fan comprises a rotor and a stator. The rotor includes a ring magnetic mounted to an outer periphery thereof. The stator includes a core. A plurality of poles integrally extend from the core of the stator. An induction coil is wound around at leas... | 06/01/2004 |
| 6744171 | Rotating electric machine with sloped tooth surfaces for cogging torque reduction A stator tooth design for a stator core of a permanent magnet motor. The tooth surface comprises a plurality of surface segments, wherein each surface segment of the plurality of surface segments joins an adjacent surface segment of the plurality of surface segments... | 06/01/2004 |
| 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 |
| 6741009 | Armature of rotating electrical machine and wire winding method thereof An armature and method of winding the armature that improves coil density by winding adjacent poles so that the resulting windings have outer surfaces that taper in opposite directions that extend over a bisecting axially extending plane between the pole teeth at op... | 05/25/2004 |
| 6741007 | Permanent magnet motor assembly having a device and method of reducing parasitic losses A permanent magnet motor assembly for use in a flywheel is disclosed, including a rotor, a stator, and a coil positioned in the stator. One or more magnets is attached to the rotor such that magnetic field lines are directed radially toward the coil for generating t... | 05/25/2004 |
| 6741005 | Strip of lamination sectors and a method of manufacturing a magnetic circuit for an electrical machine The invention relates to a strip of lamination sectors for making a magnetic circuit of an electrical machine, the sectors are interconnected by links, and the strip is for winding on a mandrel to form a stack of layers of sectors. Said links lie outside the sectors... | 05/25/2004 |
| 6741004 | Creased armature winding insulator for dynamo-electric machine A method includes the steps of forming a substantially U-shaped insulator having outwardly bent portions formed by bending the side portions thereof at bent parts so as to be apart from each other, forming winding assemblies including strands of wire wound in a pred... | 05/25/2004 |
| 6737784 | Laminated amorphous metal component for an electric machine A bulk amorphous metal magnetic component for an electric machine such as a motor or generator is described. The component may include a plurality of substantially similarly shaped laminations stamped from ferromagnetic amorphous metal strips, stacked and bonded tog... | 05/18/2004 |
| 6737783 | Sealed motor compressor A sealed motor compressor in which a motor running efficiency is largely enhanced with a single-phase bipolar constitution, an electromotive element is fixed to a sealed container, and formed of a stator provided with a stator winding, and a rotor which rotates in t... | 05/18/2004 |
| 6734596 | Assembling type rotor structure of brushless motor An assembling type rotor structure of brushless motor can be applied both in outer stator/inner rotor motor and inner stator/outer rotor motor. The rotor structure includes a rotor's main body having a plurality of ribs made of non-permeable material and a plurality... | 05/11/2004 |
| 6731043 | One-piece field core shell A spin-roll formed one-piece field core shell formed from a blank disc of sheet metal. The one-piece field core has an outer annular ring integral to and encircling a center axis of the disc and extending from a bottom external surface in a direction that is perpend... | 05/04/2004 |
