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| Number | Title | Issue Date |
| 6242829 | Submersible pumping system utilizing a motor protector having a metal bellows A downhole pumping system includes a downhole pump that is coupled to a downhole motor. The downhole motor includes a motor protector that utilizes one or more retractable and extensible bellows, instead of an elastomeric bag, to accommodate motor oil con... | 06/05/2001 |
| 6229238 | Transversal flux machine A transversal flux machine having a stator arrangement with a stator housing and at least one pole system arranged inside the stator housing and extending in the rotating direction. The pole system has an essentially U-shaped cross-section, and a ring win... | 05/08/2001 |
| 6218748 | Rotation detecting device for a brushless motor A rotation detecting device for a brushless motor having: a stator core on which a coil is wound; a driving magnetic pole portion which opposes the stator core, which comprises a plurality of magnetic poles, and which is rotated; an FG magnetized portion ... | 04/17/2001 |
| 6166472 | Airgap armature coils and electric machines using same A flywheel energy conversion device provides highly efficient conversion between kinetic and electrical energy. The flywheel produces increased output by providing armature coils in an air gap formed about the flywheel (both radial and axial embodiments a... | 12/26/2000 |
| 6166465 | Vibration generating mechanism using repulsive forces of permanent magnets A vibration generating mechanism includes at least first and second permanent magnets spaced from each other with the same magnetic poles opposed to each other. The first permanent magnet is coupled to a link mechanism so that the drive force of a drive s... | 12/26/2000 |
| 6157106 | Magnetically-levitated rotor system for an RTP chamber Accomodations for a magnetically levitated rotating system in an RTP chamber are provided. The system includes a magnetically permeable rotor; a cylindrical thin wall concentric with and surrounding the rotor; and a magnetic stator assembly adjacent the c... | 12/05/2000 |
| 6150746 | Synchronous electrical machine with U-shaped non-magnetic holder for permanent magnets A synchronous machine, in particular a motor for a motor vehicle has an excitation system composed of a plurality of electrically excited individual poles in a stator or a rotor, preferably formed as claw poles excited by at least one joint excitation coi... | 11/21/2000 |
| 6144131 | Dynamoelectric machine rotor having interleaved laminations and method for forming A dynamoelectric machine having a permanent magnet rotor construction which contains the permanent magnets while inhibiting flux leakage. The invention further permits rapid, substantially conventional manufacturing techniques to be employed in the format... | 11/07/2000 |
| 6140726 | Radial gap cylindrical motor having an increased number of slots A radial gap type cylindrical motor structure including a rotor which has a field magnet 13, a stator poles 20 having salient poles 18 opposed to the field magnet 13 of the rotor, a magnetic flux density adjusting yoke 21 formed in a cylindrical shape usi... | 10/31/2000 |
| 6135640 | Hybrid foil/magnetic bearing A cylindrical shaft including a rotor rotates within a housing. A foil bearing comprised of flexible foil segments encircles the rotor, and is located in between the rotor and the housing. The foil segments are attached to the housing, and are installed w... | 10/24/2000 |
| 6133669 | Low-loss magnet core for high frequency claw-pole-type alternator A low-loss magnetic core of the claw-pole type for use in generating electrical power with a high frequency alternator is disclosed. A rotor, driven by a shaft, is made of pairs of individual poles of alternating polarity nested radially around a shaft. T... | 10/17/2000 |
| 6133661 | Rotating electric machine usable in radioactive environment The invention relates to a rotating electric machine including a coil of a wire having thereon an insulating coating comprising a polybenzimidazole. This rotating electric machine is stably maintained for a long time in dielectric strength even under a hi... | 10/17/2000 |
| 6130532 | Indicator movement The movement has a rectangular section case for accommodating a magnet rotor so as to turnably support the magnet rotor engaged with a pointer spindle. A pair of inner core bobbins wound by an electrical wire each are slidingly engaged with the case throu... | 10/10/2000 |
| 6127766 | Paired-tube thermoelectric couple A thermionic paired tube bank (100) designed for use as a tubular heat exchanger for generating electricity, preferably heated by combustion products after they leave the combustor of a power plant but before they enter the turbine or steam generator port... | 10/03/2000 |
| 6124651 | Method for driving stepping motor of multiphase hybrid type A multi-phase hybrid type stepping motor includes a rotor which is rotatably mounted on a rotary shaft. A rotor magnet is mounted to an axial center of the rotor and two rotor caps are mounted to both sides of the rotor magnet respectively. Each of said r... | 09/26/2000 |
| 6121707 | Electric motor and electric motor stator and method for making same A technique for forming stator coils for an electric motor is disclosed. The technique includes forming D-shaped or generally trapezoidal coils having a closed loop defining a long side and a short side joined by end portions. The coils are installed in a... | 09/19/2000 |
| 6118196 | Electrical generator attached to a bicycle wheel A bicycle dynamo having enhanced power dynamics by having a large number of magnets 63 in alternate polarity lined up at a fixed interval along the inner circumference of the rotating mechanism 60. A circular lining 70 is outfitted and anchored around the... | 09/12/2000 |
| 6114789 | Switched reluctance motor A switched reluctance motor comprised of a stator having a plurality of evenly spaced, radially oriented, like stator poles that define a gap between adjacent stator poles. Windings for three phases are wound about the stator poles wherein a stator pole o... | 09/05/2000 |
| 6100621 | Thermionic converter with differentially heated cesium-oxygen source and method of operation A thermionic converter having an emitter, a collector, and a source of cesium vapor is provided wherein the source of cesium vapor is differentially heated so that said source has a hotter end and a cooler end, with cesium vapor evaporating from said hott... | 08/08/2000 |
| 6093988 | Rotating electric machine usable in radioactive environment The invention relates to a rotating electric machine including (a) a rotor having a rotating shaft; (b) a bearing for supporting the rotating shaft; (c) a radiation resistant grease applied to the bearing; and (d) a shield layer for shielding the grease f... | 07/25/2000 |
| 6087747 | Microelectromechanical beam for allowing a plate to rotate in relation to a frame in a microelectromechanical device An electromechanical device includes a first frame having a first aperture therein, a second frame suspended in the first frame wherein the second frame has a second aperture therein, and a plate suspended in the second aperture. A first pair of beams sup... | 07/11/2000 |
| 6087754 | Cut-out brush for electric hand tool A manual electric machine tool (10), having an electric motor (16), whose commutator (20) can be connected to a voltage source via at least one carbon brush (22) pressed against the commutator (20) by spring means (26), wherein the carbon brush (22) inclu... | 07/11/2000 |
| 6072252 | Composite electric motor shaft A composite electric motor shaft including axially distributed metallic and nonmetallic sections joined together exhibit increased mechanical damping, increased rotor critical speed, improved corrosion resistance and improved motor performance.... | 06/06/2000 |
| 6066905 | Dynamoelectric machine: quadrature winding retention apparatus A dynamoelectric machine having a wire retaining device constructed to frictionally retain the quadrature winding to allow automated winding of the quadrature winding. The wire retaining device includes stator end caps having integrally formed wire retent... | 05/23/2000 |
| 6060797 | Solenoid operated remote resetting device with a protective activation circuit A solenoid operated remote resetting device with a protective solenoid activation circuit is disclosed. The device includes a housing for enclosing and protecting a solenoid with a movable plunger, a movable mechanical operator having an operator arm exte... | 05/09/2000 |
| 6060802 | AC generator for an automotive vehicle A cooling fin is fixed to a frame and mounts a plurality of rectifying elements. The cooling fin is configured into a circular ring shape separated at a cutout section. A brush holder, a connector casing and an IC regulator are disposed in this cutout sec... | 05/09/2000 |
| 6057627 | Claw pole generator with ventilation fan supporting the magnetic pole tips A claw pole generator has a drive shaft, two pole wheel halves arranged on the drive shaft and each having a disk-shaped plate and claw shaped magnet poles spaced from one another in a peripheral direction and having magnet pole tips, the magnet poles of ... | 05/02/2000 |
| 6054791 | Direct current motor with imbalanced winding for closed-loop feedback control A direct current motor for use in a closed-loop control system is disclosed that includes a rotating commutator having a plurality of slots, a plurality of windings, the number of windings that conduct current corresponding to one less than the number of ... | 04/25/2000 |
| 6043579 | Permanently excited transverse flux machine The invention concerns a permanently excited transverse flux machine which requires only one permanent magnet segment per phase and per magnetic circuit. The magnetic flux generated by a permanent magnet segment (3) flows alternately through the soft magn... | 03/28/2000 |
| 6037687 | Double diaphragm compound shaft A compound shaft coupling having a flexible disk shaft, with two flexible disks or diaphragms, and a tie bolt shaft connecting two rigid or stiff shafts. One flexible disk diaphragm of the flexible disk shaft is coupled with an interference fit to the fir... | 03/14/2000 |
| 6037688 | Motor housing assembly having mating ramped surfaces with a diffuser plate for improved air flow A molded through-flow motor assembly has a motor housing, including a cup portion and a flange portion. The flange portion includes a plurality of ramp surfaces extending outwardly therefrom. The cup portion has a field retaining wall and guide rib extend... | 03/14/2000 |
| 6037689 | Housing with integral weather seals and noise dampeners for a rearview mirror actuator assembly A housing member for an actuator assembly for adjusting the orientation of a mirror element in a mirror assembly provides integral weather seals and noise dampeners. The weather seals and noise dampeners are injection molded with or onto a base wall of th... | 03/14/2000 |
| 6028385 | Switched reluctance motor A switched reluctance motor having a stator with a plurality of radially oriented stator poles. Windings for three phases are wound about the stator poles wherein a stator pole of a first phase is disposed circumferentially between a winding and an associ... | 02/22/2000 |
| 6028386 | Winding support for an electric motor The present invention relates to an electric motor having a winding support (9) for the windings of the motor stator. The winding support is formed with a cylindrical coaxial space having a first end (16) which is at least partially closed and a second en... | 02/22/2000 |
| 6028379 | Arrangement for the vibration isolating mounting of an electric motor The present invention relates to an arrangement for the vibration-isolating mounting of an electric motor (2) on a support part (6) via an essentially disk-shaped support element (12). The support element (12) has a motor-holding section (24) for connecti... | 02/22/2000 |
| 6025668 | Variable reluctance motor having bifurcated stator poles A variable reluctance electric motor includes a hollow cylindrical stator having a plurality of radially inwardly extending poles. Each of the stator poles is generally rectangular in cross sectional shape and is bifurcated into two stator teeth at its ra... | 02/15/2000 |
| 6020671 | In-line thermoelectric module A thermoelectric module with a plurality of electricity generating units each having a first end and a second end, the units being arranged first end to second end along an in-line axis. Each unit includes first and second elements each made of a thermoel... | 02/01/2000 |
| 6020669 | Compact high-power alternator for a vehicle having a rotor and a stator It is an object of this invention to provide a compact high-power alternator for a vehicle. An alternator for a vehicle includes a stator serving as an armature, and a rotor serving to generate a magnetic field. The rotor includes a pole core having a cyl... | 02/01/2000 |
| 6018209 | Rotary electric machine having resilient fixing cap An upper coil bar and lower coil bar are disposed in slots of an armature core. The upper coil bars have upper coil-end sections which extend radially from the outer periphery of the armature core and together form a commutator surface with which a brush ... | 01/25/2000 |
| 6011334 | In-line fluid-driven electric power generator An electric power generator driven by a fluid circulating under pressure in a pipe (9) includes an internal moving contact (1) placed inside a non-magnetic section (10) of the pipe (9), and a stator (4) placed around the pipe (9). The internal moving cont... | 01/04/2000 |
