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| Number | Title | Issue Date |
| 6380657 | Low weight and low excitation force magnetotorquer A magnetotorquer including a ferromagnetic core with an excitation coil more compacted around at its central portion than at at least one of its lateral portions. A magnetotorquer including ferromagnetic core with an excitation coil wound therealong, the ... | 04/30/2002 |
| 6262507 | Permanent magnet motor and rotor thereof Disclosed is a permanent magnet motor consisting of a rotor which is a multi polar-magnetized cylindrical permanent magnet such as a neodymium/iron/boron magnet, and a stator having a plurality of stator teeth. Different from conventional but expensive mu... | 07/17/2001 |
| 6255751 | Integrated rotary servo actuator A compact integrated servo motor and gear reducer assembly that includes a rotor having a rotor shaft and a stator, and a planetary gear system including a sun gear, a plurality of planet gears and an outer ring gear. First and second bearings support the... | 07/03/2001 |
| 6242830 | Motor In a motor having a bearing housing 7 with a hollow portion 23, a radial bearing 9 held in the hollow portion 23, a thrust receiving plate 8 provided at one end of the hollow portion 23, and a rotary shaft 1 which is rotatably supported by the radial bear... | 06/05/2001 |
| 6232673 | Windmill A wind-power plant with a rotor. The rotor's hub is accommodated in a roller bearing. The roller bearing is mounted on a support and connected to a planetary gear. The planetary gear comprises two stages, specifically an input stage and an output stage. T... | 05/15/2001 |
| 6232682 | Gas cooled solid conductor series loop cap assembly A cap for disposition on a series loop of a bar wound armature of an electrical system and having openings in side walls thereof for providing ventilation flow to the solid series loop. The conductor bars of the series loop define gas flow passages intern... | 05/15/2001 |
| 6215216 | Vehicle alternator A vehicle alternator capable of promptly discharging water coming into the interior thereof from a water discharge hole. The vehicle alternator includes a rear bracket which supports a rotary shaft driven by an engine at the rear end thereof, has a plurality o... | 04/10/2001 |
| 6211590 | Spring-applied pad and carrier brake A braking system has a shaft which rotates with a wheel on a vehicle. A rotor rotates with the shaft within a housing. The housing also contains an electromagnetic coil and two armatures. The rearward armature is in contact with the coil while the forward... | 04/03/2001 |
| 6201321 | Apparatus and method for dissipating heat from a motor Heat-conductive masses of material encapsulate end turns of a stator fixed in a housing of a motor to dissipate heat from the stator through the side and one end of the housing. In one embodiment, a resilient heat-conductive pad is interposed between a fr... | 03/13/2001 |
| 6201314 | Shoe sole with liquid-powered electrical generator Various embodiments are described of a liquid-powered dynamometric generator built into a shoe, which has at least two layers as part of its sole. The first or lower layer of the sole is a pad formed of an elastomeric material which contains a liquid with... | 03/13/2001 |
| 6201323 | Rotating machine In order to provide a rotating machine in which the temperature increase distribution inside the machine can be equalized, not only is a primary cooler installed in the primary ventilation passage that extends from the exhaust side of the fans and install... | 03/13/2001 |
| 6201311 | Vehicle starter with separate terminals for the motor and the excitation coil A starter in which a terminal is each provided for a motor side fixed contact point and an excitation coil separately, and the terminal of the motor side fixed contact point and the terminal of the excitation coil are of a snap-on type. Therefore, the wor... | 03/13/2001 |
| 6194802 | Axial gap motor with radially movable magnets to increase speed capablity A brushless motor with axial air gaps is rotated at speeds higher than that of conventional motors by using magnets adjustable in the radial direction. The axial gap machine includes one or more stators, containing windings that conduct electrical current... | 02/27/2001 |
| 6188154 | Electric motor with thermal safety An electric motor with a thermal safety feature has a rotor having a rotor winding, a brush for a current transmission to the rotor winding, a case which receives the brush, a switch-off contact which is arranged relative to the case so that it is contact... | 02/13/2001 |
| 6184605 | Three pole forced permanent magnet rotor with DC twister This device converts the intrinsic magnetic force of permanent magnets into a useful output. The three-pole permanent magnets configuration comprises of two elongated bar magnets (1,2) having two opposite magnetic polarities divided by a longitudinal plan... | 02/06/2001 |
| 6184604 | Brake mechanism and powered actuator A brake mechanism includes a reduction gear train, a motor structure, and a braking means. The reduction gear train transmits at least a rotation force in a first rotational direction supplied from a drive source. The reduction gear train is imparted with... | 02/06/2001 |
| 6177741 | Electric-motor wiring system An electrical motor has a housing, a rotor rotatable in the housing about an axis, a stator in the housing surrounding the rotor and having a plurality of windings each in turn having two axially directed and projecting ends, and a plate fixed to the wind... | 01/23/2001 |
| 6175170 | Compliant displacement-multiplying apparatus for microelectromechanical systems A pivotless compliant structure is disclosed that can be used to increase the geometric advantage or mechanical advantage of a microelectromechanical (MEM) actuator such as an electrostatic comb actuator, a capacitive-plate electrostatic actuator, or a th... | 01/16/2001 |
| 6175171 | Electric drive motor An electric drive motor with a rotor in the form of an external rotor and with a stator, which has a base body comprised of heat conductive material. A bearing hub for the rotor and a support that extends radially away from the hub and is for containing a... | 01/16/2001 |
| 6175173 | Tube pump A centrifugal pump has a housing with intake and discharge fittings at axially opposite ends. The electronic motor is supported on ribs within the pump housing and the motor casing is closed by the electronic control circuit for the motor which seals the ... | 01/16/2001 |
| 6172437 | Hybrid AC/DC motor A motor for a power tool adapted to be powered by either an AC power source or a DC power source. The motor 12 includes a permanent magnet field 30 having an armature 34 disposed within the field. The armature 34 includes a shaft 36 having a DC commutator... | 01/09/2001 |
| 6169344 | Alternating current generator for vehicle An alternating current generator has a cooling function for a vehicle and includes a front bracket and a rear bracket with annular recessed portions that form a peripheral cooling chamber. A cooling cover is provided on the rear bracket. The cooling cover... | 01/02/2001 |
| 6169347 | Rotating coil electromagnetic clutch An electromagnetic coil is disposed in a rotor, and electrically insulated from the rotor. A slip-ring is supported by a rotor through a slip-ring supporter, and rotates with the rotor. A brush is supported by a compressor boss portion through a brush sup... | 01/02/2001 |
| 6169353 | Method for manufacturing a rotor having superconducting coils A method and apparatus for manufacturing a rotor for use with a rotating machine is provided that employs a superconducting coil on the rotor. An adhesive is applied to an outer surface of the rotor body, which may include a groove disposed within an oute... | 01/02/2001 |
| 6169349 | Electromagnet type segmented field DC motor A pancake type direct current motor is disclosed which comprises a motor drive shaft with one or more rotor assemblies secured along the motor drive shaft. An even number of spaced stator poles surrounds each of the one or more rotor assemblies. Each stat... | 01/02/2001 |
| 6166475 | Brushless motor and magnetic recording-reproducing apparatus using the same A brushless motor comprises a stator including substrates protruding radially with respect to a center axis and coils wound on the substrates, a rotor including a cover covering the stator, having magnetic poles annularly arranged opposing tip-end faces o... | 12/26/2000 |
| 6163095 | Drive system for a frozen food product dispenser In one preferred embodiment, a freeze cylinder is used having a closed end and an open end. Around the cylinder adjacent the closed end, a three phase DC stator is placed. The stator is connected to a three phase DC power supply that includes an AC to DC ... | 12/19/2000 |
| 6160332 | Liquid cooled brushless generator for vehicles In order to simplify the structure of a cooling function section utilizing a cooling fluid, a front bracket and a bowl-shaped rear bracket having a flange portion projecting outward from its opening portion are joined in a format resembling hands closed i... | 12/12/2000 |
| 6157102 | Armature core and brush-equipped DC motor using the same An armature core includes a central circular portion and a plurality of equi-spaced extensions extending from the central circular portion outwardly in the radial direction. The extensions and the central circular portions are in the form of an integral c... | 12/05/2000 |
| 6153952 | DC torque motor, and drive control apparatus and throttle valve control apparatus using DC torque motor A small-sized, light-weight DC torque motor with good response characteristics. The motor is a moving magnet type DC torque motor rockable in a rocking angle of 0=45 to 135 degrees. The motor includes a stator with a coil wound around a portion thereof, t... | 11/28/2000 |
| 6153954 | Motor equipped with a coil temperature sensing element A temperature sensing element mounted using a guide hole formed in the housing of a motor. The mounting of the temperature sensing element is carried out without additional processing to a coil mounted on a stator, enabling automated mounting of the tempe... | 11/28/2000 |
| 6150741 | Alternating current generator for vehicles having improved output terminal fixing structure In an alternating current generator for vehicles, an output terminal of a rectifier circuit is tightly fixed to a positive-polarity side heat radiation fin by tightening a nut. A resin bushing is fitted around the nut to insulate electrically the output t... | 11/21/2000 |
| 6150745 | Magnetic system for controlling the position of a fishing reel spool A fishing reel is provided having a frame and an operating mechanism on the frame. The operating mechanism includes a line carrying spool that is mounted on the frame for rotation around a first axis. The frame has first and second frame parts spaced axia... | 11/21/2000 |
| 6147431 | Stator core and method of manufacture therefor A plurality of strips formed with tooth portions and core back portions is punched from a single band of sheet steel. Next, a plurality of strips is stacked such that the tooth portions line up together and the core back portions line up together and the ... | 11/14/2000 |
| 6147425 | Controllable magnetic bearing apparatus In the magnetic bearing apparatus, there is provided a current sensor for detecting a current flowing in a motor. When the current increases over a reference value, a DSP enhances a support stiffness of the magnetic bearing, thereby securing a stable rota... | 11/14/2000 |
| 6144126 | Magnetic disc driving apparatus The driving ring magnet 2 of 4 n magnetic poles is allocated on the rotor 1. 3 m flat coils 5 are allocated on the stator 3 with surrounding the FG (Frequency Generator) pattern 4. Each flat coil 5 is allocated in the distance of (5/3)π of the electrical... | 11/07/2000 |
| 6144123 | Electric chuck An electric chuck constituted by an electric motor coupled to a chuck in which the rotating tool is engaged; the electric motor being provided with a cooling device for the rotor located within the interior of the casing of the electric motor; the cooling... | 11/07/2000 |
| 6144136 | Stator arrangement of alternator for vehicle In a stator of an alternator for a vehicle including a stator core and a multi-phase stator winding, the stator winding is composed of a plurality of conductor segments having a pair of conductor members connected with one another to form a first coil-end... | 11/07/2000 |
| 6140721 | Slender-type cylindrical coreless motor and battery driven equipment using the same A slender-type cylindrical coreless motor for use in battery driven equipment in which power-consumption is low, high reliability is achieved, miniaturization and long-term battery driving of the equipment are realized. The slender-type cylindrical corele... | 10/31/2000 |
| 6140732 | Armature coil conductor and method of manufacture therefor The lead portions have oval cross sections such that the dimensions of the cross sections of the lead portions parallel to the circumference of the armature are smaller than those of the straight portions parallel to the circumference of the armature are.... | 10/31/2000 |
