Electrical generator or motor structure inventions 09/08

20080231123 - Linear motor not requiring yoke: A linear motor not requiring a yoke structure is provided. A first unit forming a stator is constructed of two permanent magnet rods. The permanent magnet rods each have a magnetically permeable shaft and a permanent magnet row having a plurality of permanent magnets so arranged that opposite polarities of... Agent: Rankin, Hill & Clark LLP

20080231124 - Electro-magnetic circular engine: An electro-magnetic circular engine in which the motive force is electro-magnetism. The electro-magnetic circular engine comprises a hub assembly, first and second electro-magnetic wheels, electro-magnetic means, and electrical means. The electro-magnetic circular engine includes the rotation of the hub assembly in a predetermined direction continuously after the initial activation of... Agent: Albert Bordas, P.A.

20080231148 - Step-by-step motor able to carry out up-and-down motion: A step-by-step motor able to carry out up-and-down motion includes a housing, a transmitting gear, a worm gear, an interacting member, a top rod, a circuit board with a transmitting motor, a cover body and an adjusting member. The level of the headlamp of an automobile can be adjusted by... Agent: Hsian-yi Huang

20080231125 - Turbo generator with exciter having pressure recovery: A turbo generator (1), including a stator and a rotor (2), has a rotating bell type exciter (3) connected to one end of the rotor (2) and the exciter (3) being equipped with at least one cooler (7). An axial duct (11) with a guide (12) is provided between a... Agent: Cermak Kenealy & Vaidya LLP

20080231126 - Motor cooling arrangement: At least one cooling duct is provided for a motor that includes a frame. The cooling duct has a wall supported by the frame that, in turn, comprises an arcuate surface portion and a non-arcuate surface portion that together define a bore. A method of increasing the transfer of heat... Agent: General Electric Company Global Patent Operation

20080231127 - Electrical machine with electronic power unit for conversion: A matrix converter (3) for the conversion of a polyphase alternating current (6) into a desired alternating output current (7) in which m phases of the polyphase alternating current (6) are converted into alternating output current with n (n<m) phases of a load by a multiple number of controllable bidirectional... Agent: Cermak Kenealy & Vaidya LLP

20080231128 - Magnetic bearing device with an improved vacuum feedthrough: A magnetic bearing device (1) with an improved vacuum-tight electrical feedthrough through its housing (10) is disclosed. The feedthrough (30) comprises a flat connection element (31) such as a rigid or flexible printed circuit board extending through the wall of the housing (10), preferably all the way along an inner... Agent: Sughrue Mion, PLLC

20080231130 - Magnetic repulsion type bearing: A magnetic repulsion type bearing includes a plurality of induction iron pieces, a stator, a rotor, an outer casing, an inner casing and a current controlling device. The rotor is disposed inside the stator, and the iron pieces of the rotor and the iron pieces of the stator are arranged... Agent: Hdsl

20080231129 - Spindle apparatus: In a spindle apparatus for a machine tool, a spindle is supported on a housing by support-purpose bearing devices, and is rotated by an electric motor, and a tool is attached to a tool attaching portion formed at a distal end of the spindle. A radial magnetic bearing for vibration... Agent: Mcginn Intellectual Property Law Group, PLLC

20080231131 - Commercial low cost, high efficiency motor-generator: A motor-generator includes a rotor that rotates about an axis of rotation, and a stator that is stationary and magnetically interacts with the rotor. The rotor is constructed of two spaced apart rotor portions having magnetic poles that drive magnetic flux across an armature airgap formed therebetween. An armature, located... Agent: J. Michael Neary

20080231132 - Permanent magnet generator and wind power generator using the same: A permanent magnet generator is provided that is not bulky and does not impede wind capture by a wind turbine. The permanent magnet generator includes a generator shaft; at least three rotors secured with the generator shaft, each rotor including a plate-shaped structure having a permanent magnet attached thereto, each... Agent: Fish & Richardson P.C.

20080231133 - Electric motor stator: The invention relates to a stator for an electronically switchable electric motor comprising a cylinder-shaped envelop and several poles, which are made of an ferromagnetic material and inwardly oriented in front of the cylinder axis (3), wherein said poles (P1 to P12) surround a cylindrical cavity for receiving the rotor... Agent: Notaro And Michalos

20080231134 - Electric drive having a bell-shaped armature and external permanent magnet elements: The invention relates to an electric drive having a stationary outer and inner stator and a rotor, a plurality of permanent magnet elements being disposed on the rotor for producing an excitation flux and at least one electrical field coil being provided. The rotor comprises at least one bell-shaped part... Agent: Connolly Bove Lodge & Hutz LLP

20080231135 - Electromagnetic steel plate forming member, electromagnetic steel plate laminator, permanent magnet type synchronous rotating electric machine rotor provided with the same, permanent magnet type synchronous rotating electric machine, and vehicle, elevator: An electromagnetic steel plate forming member provides the two magnet holes for inserting therein the two permanent magnets per pole along the V-shape, which are provided in the region of the radial pole pitch lines OP provided in the rotor core at the predetermined pole pitch angle θ, one magnet... Agent: Sughrue-265550

20080231136 - Electrical rotating machine and electric vehicle: An electrical rotating machine wherein the coil end portion and slot straight portion of a coil conductor are coated with insulation layers respectively. The insulation layers are different in thickness or insulation material, and an electric field lessening layer is coated on the coil conductor or the insulation layers.... Agent: Antonelli, Terry, Stout & Kraus, LLP

20080231137 - Armature, dynamo-electric machine and winding method: A coil of a winding is wound around teeth of an armature core for a predetermined number of times in a motor. A start lead of the winding connects between the coil and a corresponding start segment among a plurality of segments of a commutator. A finish lead of the... Agent: Posz Law Group, PLC

20080231138 - Laminated core: A laminated core includes a laminated body, clamping plates and holding members. The laminated body includes a plurality of amorphous alloy plates, which are stacked one after another in a stacking direction such that each adjacent two of the plurality of amorphous alloy plates directly contact with each other. The... Agent: Nixon & Vanderhye, PC

20080231139 - Method for production of a commutator, as well as commutator: The invention relates to a commutator comprising a support body (1), a plurality of conductor segments (13) that are secured in said body and a compensation unit (18) comprising several compensation elements (17), which electrically interconnect the conductor segments in pairs or groups. According to the invention, the compensation elements... Agent: Katten Muchin Rosenman LLP

20080231140 - Electric machine having claw pole stator: The present invention relates to an electric machine having a claw pole stator, comprising: a first and a second claw pole plate each of which has a yoke and pole claws, the pole claws connected to the yoke via a base and the claw pole plates being disposed coaxially with... Agent: Duane Morris LLP Suite 1000

20080231141 - Microactuator with displacement sensing function and deformable mirror including the microactuator: According to the present invention, a moving element such as an electrostatically driven actuator is displaced by supplying a drive signal thereto. Meanwhile, a displacement sensing section senses its displacement and a calibrating section automatically calibrates the correlation between the drive signal and the displacement, thereby compensating for a variation... Agent: Panitch Schwarze Belisario & Nadel LLP

20080231142 - Piezoelectric actuating unit or piezoelectric drive device: A piezoelectric actuating unit has a piezoelectric actuator pressed to a first cap which makes it possible to fix the actuating unit thereabove to the drive body of the piezoelectric drive device and cables and/or contact pins used in the form of contact elements with the actuator for the electrical... Agent: Baker Botts L.L.P. Patent Department

20080231143 - Piezoelectric movement device: The invention relates to a piezoelectric movement device, in particular a motor, with a piezoelectric apparatus, which has a middle area and two end areas, and with a movement body, which is mounted on or in a mount or the piezoelectric apparatus, wherein one end area is designed or both... Agent: Michaud-duffy Group LLP

20080231144 - Universal power tool battery pack coupled to a portable internal combustion engine: A portable internal combustion engine and a charging device that generates AC power are supported on a manually movable frame. A coupling mechanism which can include a starter circuit and starting device, or a charging circuit and charging device, or both device couples a battery receptacle terminal block to the... Agent: Harness, Dickey & Pierce, P.L.C

20080231145 - Quartz crystal device and method for sealing the same: A quartz crystal device includes a crystal resonator element and a package including a plurality of components. The plurality of components are bonded using a metal paste sealing material containing a metallic particle having an average particle size from 0.1 to 1.0 μm, an organic solvent, and a resin material... Agent: Oliff & Berridge, PLC

20080231146 - Piezoelectric element, ink jet recording head and ink jet printer: A piezoelectric element includes: a base substrate; a lower electrode formed above the base substrate; a ferroelectric layer formed above the lower electrode; and an upper electrode formed above the ferroelectric layer, wherein an angle of a corner defined by a side surface of the ferroelectric layer and a top... Agent: Oliff & Berridge, PLC

20080231147 - Laminated piezoelectric element and process for producing the same: A multilayer piezoelectric device including a body having internal electrode layers and piezoelectric ceramic layers alternately stacked. The internal electrode layers contain Cu as a major component, the piezoelectric ceramic layers contain a compound oxide represented by Pb(Ti, Zr)O3 as a major component, and a metal oxide (Nb2O5, Sb2O5, Ta2O5,... Agent: Dickstein Shapiro LLP

20080224548 - Braking device for an electric motor: A braking device for an electric motor includes two brake pads, which are connected to brake disks, which cooperate with a brake rail. The two brake pads are rigidly connected by a connecting element, which is able to experience a certain deflection under the influence of a piezoelectric element, which... Agent: Kenyon & Kenyon LLP

20080224549 - Apparatus and method for correcting shape of inner surface of stator: An apparatus for correcting the shape of an inner surface of a stator includes a deviation sensor for measuring the shape of the inner surface of the stator fixed inside an inner surface of a housing of a rotating electric machine, a personal computer for calculating a direction of deformation... Agent: Buchanan, Ingersoll & Rooney PC

20080224550 - Magnetic motor: There is provided a magnetic motor which comprises a rotation assembly having a rotation axis and a plurality of rotating bodies fixedly installed at an interval along the rotation axis and magnetized to have multipole; one or more electromagnets, installed in a region influenced by a magnetic field derived from... Agent: Ipla P.A.

20080224573 - Step motor: A step motor includes a rotor, which has a driving member and a permanent magnet set that is affixed to the driving member and has multiple magnetic poles alternatively arranged around the driving member, and two stator windings that are arranged at two opposite sides relatively to the rotor, each... Agent: Rosenberg, Klein & Lee

20080224574 - Stepping motor and steel plate for manufacturing the stepping motor: s

20080224551 - Cooling an electrical machine: An electrical machine includes a stator and a rotor disposed in a housing of the electrical machine. The stator includes windings having a first set of end turns at a first end of the stator and having a second set of end turns at a second, opposing end of the... Agent: Fish & Richardson P.C.

20080224552 - Outer rotor of motor for direct drive-type washing machine: For this, the outer rotor having a rotor frame with a bottom, a side wall extended from a circumference of the bottom substantially perpendicular to the bottom, and magnets mounted on an inside of the side wall, wherein the bottom of the rotor frame is elevated in a direction of... Agent: Ked & Associates, LLP

20080224575 - Servomotor neutral position setting apparatus of wireless remote-control model: A servomotor neutral position setting apparatus of a wireless remote-control model comes with a simple structure that embeds a servo rudder piece into an output shaft of a servomotor to set a neutral position with high precision.... Agent: Troxell Law Office PLLC

20080224576 - Energy efficient generator: A shell containing axles, magnets, electronics and diodes that provide for a more efficient generation of electricity. A tubular shell containing a spinning axle, fitted with magnets, magnetic bearings, computer to regulate and control generation functions provides power generation at a higher output to input power ratio than previously seen.... Agent: Jim Helfrich

20080224553 - Electric motor, rotary actuator and rotary apparatus: A rotary actuator including: a housing that rotatably supports thereinside a rotor shaft of an electric motor; an eccentric shaft portion that is provided on a protruding end portion of the rotor shaft that protrudes outside the housing; an external gear that is rotatably supported on the eccentric shaft portion... Agent: Squire, Sanders & Dempsey L.L.P.

20080224554 - Bearing assembly and motor using the bearing assembly: In a bearing assembly, a shaft is inserted into a sleeve, and a lower end of the shaft is attracted to a magnet chip which is held by an auxiliary yoke. A retaining member and an auxiliary washer are sandwiched between a lower end surface of the sleeve and a... Agent: Nidec Corporation C/o Keating & Bennett, LLP

20080224555 - Method and device for controlling a magnetic bearing: A detection device (8) detects radial deflections (x, y) of a rotating element (2) which is mounted in a base (1) by means of a magnetic bearing system (3) so as to rotated about a rotational axis (4) and feeds these deflections to a control device (9). Said control device... Agent: Henry M Feiereisen, LLC Henry M Feiereisen

20080224556 - Methods of controlling the instability in fluid film bearings: A method of controlling the instability in fluid film bearings by using a magnetic bearing in combination with a fluid film bearing (whether it is a cylindrical journal bearing, an elliptic bearing, an offset-half bearing, a multi-lobe bearing, foil bearing or a tilting-pad bearing, does not really matter), wherein the... Agent: Dennis G. Lapointe Lapointe Law Group, Pl

20080224557 - Electric motor with halbach arrays: Electric motor configurations are provided with Halbach arrays. In one example, an electric motor includes a first plurality of magnets arranged in a first Halbach array. The first plurality of magnets is configured to provide a first magnetic field that substantially exhibits a first Halbach flux distribution. A first plurality... Agent: Macpherson Kwok Chen & Heid, LLP

20080224558 - Interior permanent magnet motor including rotor with flux barriers: An electric machine includes a stator, and a rotor positioned adjacent the stator and configured to rotate with respect to the stator. The rotor includes a plurality of laminations having an outside diameter and stacked in a stackwise direction. Each lamination includes a plurality of non-linear slots positioned inward of... Agent: Michael Best & Friedrich LLP

20080224559 - Brush-less motor and electric power steering device having brush-less motor: A permanent magnet included in a rotor of a brush-less motor is a radial anisotropic magnet in which multi-poles are magnetized in the circumferential direction and is skew magnetized along the axial direction in such a manner that a surface to one end part of an upper side from a... Agent: Oblon, Spivak, Mcclelland Maier & Neustadt, P.C.

20080224560 - Electric machine and manufacturing process for same: In order to ensure resolution of the above subject, a stator coil 112 is constructed from a plurality of coil conductors 113 each mounted in two spaced slots 111b, each of the coil conductors 113 is formed under a no-end state at any portions from a connection 113j to a... Agent: Crowell & Moring LLP Intellectual Property Group

20080224561 - Electric motor, method for manufacturing electric motor, electromagnetic coil for electric motor, electronic device, and fuel cell equipped apparatus: An electric motor having an electromagnetic coil, wherein the electromagnetic coil has wiring formed by a vapor deposited insulating layer wound on the entire exterior circumference of a conductive substrate.... Agent: Harness, Dickey & Pierce, P.L.C

20080224562 - Armature laminations: A DC motor, has a stator housing accommodating a permanent magnet stator; a rotor, rotatably mounted confronting the stator, the rotor having a shaft, a rotor core fitted to the shaft and having asymmetric laminations, a commutator fitted to the shaft adjacent one end of the rotor core, and windings... Agent: Birch Stewart Kolasch & Birch

20080224563 - Method of inserting an undulating winding into a stator of a polyphase rotating electrical machine, and associated stator: A method of inserting an undulating winding into an alternator stator. The method comprises the following steps consisting of shaping each phase winding into a succession of crenels comprising two lateral branches which are intended to be attached at a position for reception in a slot, positioning the windings on... Agent: Matthew R. Jenkins, Esq.

20080224565 - Electrostatic actuator: An electrostatic actuator includes a stator having a plurality of convex shaped electrodes formed on a surface of a base material, where the surface serves as a counter surface, and a mover disposed so as to face the stator, where the mover has a plurality of convex shaped electrodes formed... Agent: Beyer Law Group LLP

20080224564 - Tear resistant electroactive polymer transducers: Described herein are several solutions that increase transducer lifetime by reducing or preventing tear propagation in a compliant electroactive polymer. One solution couples a compliant tear resistant treatment to a transducer proximate to an edge portion of the electroactive polymer. Another solution uses a tear resistant layer that couples to... Agent: Beyer Law Group LLP

20080224566 - Multilayer conductive elements: An article comprises first and second electrically responsive elements having a cutting plane which is perpendicular to an x-dimension for separating the elements. The conductive elements of the conductive layers are alternatingly exposed to one of the two opposing faces of the conductive element.... Agent: 3m Innovative Properties Company

20080224567 - Ultrasonic sensor having piezoelectric element and acoustic matching member: An ultrasonic sensor according to the present invention is used, for example, for detecting an obstacle positioned in front of an automotive vehicle. The ultrasonic sensor includes an piezoelectric element connected to an acoustic matching member and a processing circuit, all contained in a casing. Ultrasonic waves reflected on an... Agent: Posz Law Group, PLC

20080224568 - Backscatter sensor: A micro mechanical backscatter sensor includes a receiver for receiving a modulated electromagnetic signal, a capacitive element operatively connected to the receiver, the capacitive element being arranged such that a voltage is generated across the capacitor in response to the frequency of the received signal, and a resonator operatively connected... Agent: Edell, Shapiro & Finnan, LLC

20080224569 - Piezoelectric element and its manufacturing method: A piezoelectric element includes: a base substrate; a lower electrode provided above the base substrate; a lower dummy electrode provided on the base substrate and electrically insulated from the lower electrode; a piezoelectric layer provided on the base substrate, the lower electrode and the lower dummy electrode; and an upper... Agent: Edwards Angell Palmer & Dodge LLP

20080224570 - Transformer arrangement having a piezoelectric transformer: A transformer arrangement is specified which includes a piezoelectric transformer with a main body (1), and a cooling body (7) on which the main body (1) is arranged, wherein the main body (1) is thermally coupled to the cooling body (7) by means of at least one heat-conducting coupling element... Agent: Fish & Richardson PC

20080224571 - Piezoelectric element, liquid jet head and printer: A piezoelectric element includes: a base substrate; a lower electrode formed above the base substrate; a piezoelectric layer that is formed above the lower electrode, and formed from a perovskite type oxide; and an upper electrode formed above the piezoelectric layer, wherein the piezoelectric layer is oriented to (100) crystal... Agent: Harness, Dickey & Pierce, P.L.C

20080224572 - Piezoceramic multilayer actuator and method of manufacturing a piezoceramic multilayer actuator: A piezoceramic multilayer actuator (10) has a plurality of piezoceramic layers (12), a security layer (20) and a plurality of inner electrodes (16, 18). The piezoceramic layers (12) has a piezoceramic first material sintered at a sintering temperature. The security layer (20) has a second material and is disposed between... Agent: Baker Botts L.L.P. Patent Department

20080218005 - Linear motor: When a pitch between centers of two adjacent magnetic pole portions disposed on an armature is defined as τs, the length W of permanent magnets disposed in the middle is equal to the pitch τs (W=τs). The length of each of the two end permanent magnets respectively disposed at either... Agent: Rankin, Hill & Clark LLP

20080218004 - Moving-magnet type linear motor: A moving-magnet type linear motor is provided with cooling blocks which are attached to each of stator bases alongside a coreless coil and which allow coolant to flow therethrough for cooling the coreless coil. Each of the cooling blocks has in a base end portion thereof a fluid passage for... Agent: Oblon, Spivak, Mcclelland Maier & Neustadt, P.c.

20080218006 - Method of assembling a rotor shaft assembly: A method of assembling a rotor shaft assembly is provided. The method includes assembling a self-aligning bearing seat from a first assembly and a second assembly such that the self-aligning bearing seat substantially circumscribes a rotor shaft. The method also includes creating an interface defined between the first assembly and... Agent: Patrick W. Rasche (22402)

20080218007 - Rotor for motor and method for producing the same: A surface magnet type rotor and an inner magnet type rotor having good motor characteristics in which bonding strength is high between a magnet section and a soft magnetic yoke section, and structural reliability is high even in high speed use, and its producing method. The rotor comprises an anisotropic... Agent: Sughrue Mion, Pllc

20080218008 - Rotor and stator assemblies that utilize magnetic bearings for use in corrosive environments: Rotor and stator assemblies that utilize magnetic bearings for supporting the rotor shall during operation can be suitably used in corrosive environments, such as sour gas. The rotor and stator assemblies include NACE compliant magnetic bearing arrangements for sour gas applications. One embodiment includes the use of barrier layers disposed... Agent: General Electric Company Global Research

20080218009 - Brushless motor and manufacturing method thereof: A centerpiece rotatably supports a rotatable shaft therein. A stator core is placed radially outward of the centerpiece. A generally cylindrical vibration isolator is made of a resilient material and is radially placed between the centerpiece and the stator core.... Agent: Posz Law Group, Plc

20080218036 - Rotating rectifier: A rotatable rectifier arrangement comprises a rectifier component 14a, 14b electrically connected to a bus bar 16, 18 the bus bar 16, 18 being provided with at least one fan blade formation 30.... Agent: Andrus, Sceales, Starke & Sawall, LLP

20080218035 - Rotating rectifier assembly: A rotating rectifier assembly includes a metallic housing, a composite substrate, and a rectifier subassembly that can be used to rectify a polyphase AC current. The composite substrate includes a ceramic component and one or more metallic components according to a metallization process. The composite substrate and rectifier subassembly may... Agent: Law Offices Of Michael M. Ahmadshahi

20080218011 - Electronically commutated external rotor motor with a circuit board: An electronically commutated motor (ECM 21) has reduced vulnerability to Electro-Static Discharge (ESD). The motor has an internal stator (50) and an external rotor (22) equipped with a permanent magnet (28), which rotor is separated by an air gap from the internal stator (50). The rotor has a shaft (34)... Agent: Ware Fressola Van Der Sluys & Adolphson, LLP

20080218010 - Motor: The present invention provides a motor that enables a lead of a coil to be appropriately led through holes, while allowing the lead of the coil to be fixed without contacting a wall surface of the hole in a base. Cuts 14b are formed in an insulating sheet or a... Agent: Steptoe & Johnson LLP

20080218012 - Terminal board as well as an electrical machine: A terminal board, which is for a housing-less asynchronous motor, includes an electrically insulating base extending in a longitudinal direction and in a traverse direction. A device fastens the base to an electrical machine and another device enables a plurality of terminals to be inserted into the base. The base... Agent: Lerner Greenberg Stemer LLP

20080218013 - Vibration exciter: A vibration exciter, particularly for a vibration pile driver, comprising at least two axles disposed parallel to one another, as well as at least two imbalance masses, which are attached to one or more of the axles. The relative rotary position of the imbalance masses can be adjusted relative to... Agent: Collard & Roe, P.c.

20080218014 - Friction drive spindle unit: A spindle unit (A) for effecting a manufacturing or repair procedure includes a spindle assembly (2) having a spindle (12) that holds a tool (B), an electric motor (4), and a friction drive transmission (6) located between the spindle assembly and the motor. The transmission includes a sun roller (86)... Agent: Polster, Lieder, Woodruff & Lucchesi

20080218015 - Encapsulated stator assembly and process for making: Rotor and stator assemblies that utilize magnetic bearings for supporting the rotor shaft during operation can be suitably used in corrosive environments, such as sour gas. The rotor and stator assemblies include NACE compliant magnetic bearing arrangements for sour gas applications. One embodiment includes a stator assembly that comprises a... Agent: General Electric Company Global Research

20080218018 - Cooling fan and method of fabrication: A cooling fan includes a fan housing (10) having a central tube (15) extending upwardly therefrom, a bearing (20) defining a bearing hole (22) therein, a stator (30) mounted on the central tube, and a rotor (40) including a hub (12) having a shaft (18) extending from the hub into... Agent: Pce Industry, Inc. Att. Cheng-ju Chiang

20080218016 - Electronic motor apparatus capable of reducing friction: This invention discloses an electric motor apparatus including a frame, a stator and a rotor in the frame, an axle sleeve at the center of the stator and having an embedded groove extended inwardly and at a free end apart from the connecting position of the frame, a bearing sheathed... Agent: Bacon & Thomas, Pllc

20080218017 - Enhanced thermal deformation resisting bearing of electric motor: This invention discloses an enhanced thermal deformation resisting bearing of an electric motor. The bearing includes a frame for containing a stator and a rotor. The stator has an axle sleeve sheathed with a bearing. The bearing has a hole groove for dividing the bearing into inner and outer layers.... Agent: Bacon & Thomas, Pllc

20080218019 - Fluid dynamic pressure bearing and spindle motor: A fluid dynamic bearing includes a shaft, a stationary portion supporting the shaft in a rotatable manner, a lubricating oil arranged in a radial gap defined between an outer circumferential surface of the shaft and a surface of the stationary portion, opposing each other. The fluid dynamic bearing includes a... Agent: Nidec Corporation C/o Keating & Bennett, LLP

20080218020 - Shaft assembly: A shaft assembly includes a rotatable shaft, an upper supporting frame having a bearing cavity, a lower supporting frame coupling with the upper supporting frame, a bearing assembly, and a shaft guider. The bearing assembly includes a first bearing rotor disposed in the bearing cavity to coaxially engage with the... Agent: David And Raymond Patent Firm

20080218021 - Rotor arrangement for a unilateral transverse flux machine with flux concentration: The invention relates to a rotor arrangement for a unilateral transverse flux machine with flux concentration which is in interaction via an air gap with a coaxially arranged stator arrangement with stator poles and interposed annular winding, and comprises rotor pole shoes in the circumferential direction with interposed permanent magnets... Agent: Baker & Daniels LLP 111 E. Wayne Street

20080218022 - Motor: A motor that reduces a cogging torque and rotates at a high speed is presented. The motor comprises: a shaft, a plurality of core blocks coupled to the shaft, a plurality of permanent magnets inserted into each of the core blocks, and an aligning unit, coaxial with the shaft, and... Agent: Mckenna Long & Aldridge LLP

20080218023 - Brushless motor and electric power steering device having brushless motor: In a three-phase brushless motor, a rotor has a stacked structure including first to third stages which include segment magnets to which a skew process is applied. When the number of poles P in the circumferential direction is set to P, an angle of skew is set to Δ=360/(6P/2) [deg].... Agent: Oblon, Spivak, Mcclelland Maier & Neustadt, P.c.

20080218024 - Power tool with integrated auxiliary tool for replacing brushes: A power tool has an electric motor that includes a commutator, with which at least one commutator brush is acted upon with spring force via at least one commutator spring in the direction of a non-rotatable collector of the commutator. At least one auxiliary tool for adjusting the commutator spring... Agent: Striker, Striker & Stenby

20080218025 - Self-magnetizing motor and compressor having the same: A self magnetizing motor and a compressor having the same is configured to require a lower starting voltage and to deliver superior performance. In the self magnetizing motor, a magnetic material on an exterior of the rotor is magnetized when power is supplied to a magnetizing unit of the stator.... Agent: Ked & Associates, LLP

20080218026 - Piezoelectric package with enlarged conductive layers: A piezoelectric package comprises a piezoelectric plate having a first planar surface and a second planar surface that are electrically isolated from each other. The piezoelectric package further comprises a first electrically conductive layer electrically coupled to the first planar surface, and a second electrically conductive layer electrically coupled to... Agent: Vista Ip Law Group LLP

20080218027 - Circuit and method for controlling a piezoelectric or electrostrictive actuator: A circuit and/or a corresponding method for controlling a piezoelectric or electrostrictive actuator (P) have a series-connected driver stage (G) which provides a control signal which is used to drive the piezoelectric actuator (P). A reference capacitor (M), which is used to measure a charge (qP) of the actuator (P),... Agent: Baker Botts L.l.p. Patent Department

20080218028 - Piezoceramic multilayer actuator and method of manufacturing a piezoceramic multilayer actuator: In a method of manufacturing a piezoceramic multilayer actuator (10), a plurality of green layers is provided, wherein the green layers are to be converted to piezoceramic layers (12) with a piezoceramic material in a subsequent step of heating. A security layer material mixture with a second material (32) and... Agent: Baker Botts L.l.p. Patent Department

20080218029 - Piezoceramic multilayer actuator and method of manufacturing a piezoceramic multilayer actuator: A piezoceramic multilayer actuator (10) has a plurality of piezoceramic layers (12) and a security layer (20) disposed between two piezoceramic layers (12). The piezoceramic layers (12) have a piezoceramic first material sintered at a sintering temperature. The security layer (20) has a second material (32) and particles (30) at... Agent: Baker Botts L.l.p. Patent Department

20080218031 - Electroacoustic transducer: An electroacoustic transducer having one end portion of a first piezoelectric element and one end portion of a second piezoelectric element fixed to a frame such that the first piezoelectric element and the second piezoelectric element are supported by the frame in an opening of the frame in the cantilever... Agent: Dickstein Shapiro LLP

20080218030 - Ultrasonic transducer: An ultrasonic transducer includes a cylindrical cap member having a bottom. A piezoelectric element is bonded to the inner side of a bottom portion of the cap member using a conductive adhesive or other suitable adhesive. An inner frame made of a material having an acoustic impedance greater than that... Agent: Murata Manufacturing Company, Ltd. C/o Keating & Bennett, LLP

20080218032 - Laminated piezoelectric element including adhesive layers having small thickness and high adhesive strength: A laminated piezoelectric element according to the present invention includes a plurality of unit laminates and a plurality of adhesive layers. The unit laminates are stacked together. Each of the unit laminates includes a plurality of piezoelectric ceramic layers and a plurality of internal electrode layers that are alternately laminated... Agent: Nixon & Vanderhye, Pc

20080218033 - Piezoelectric actuator with internal contact-connection: The invention proposes a piezoelectric actuator, for example for a piezoelectric injector or for actuating another mechanical component. The actuator has a piezoelectric element formed of a multilayer structure of piezoelectric layers. Inner electrodes are arranged between the piezoelectric layers in the direction of action and can alternately have a... Agent: Ronald E. Greigg Greigg & Greigg P.l.l.c.

20080218034 - Piezo actuator and method for the production thereof: The invention is a method for producing a piezo actuator starting with the assembly of a plurality of actuator layers made of a ceramic material and a plurality of metallic layer electrodes disposed between the actuator layers to form a green member. The metallic layer electrodes are alternately electrically connected... Agent: Ronald E. Greigg Greigg & Greigg P.l.l.c.

20080211324 - Linear motor: A linear motor comprising a stator core and/or a mover. The stator core of said linear motor comprising an inner perimeter, an outer perimeter essentially encircling the inner perimeter, a first and a second tooth being arranged along one of the inner perimeter or the outer perimeter, a slot for... Agent: Buchanan, Ingersoll & Rooney PC

20080211323 - Magnetic actuator device: The magnetic actuator device of the invention comprises a magnetic field generator external to the duct and a permanent magnetic field generator internal to the duct, separated from the magnetic field generator external to the duct by a non-magnetic separator wall, and connected to a moving member, the permanent magnetic... Agent: Joe Mckinney Muncy

20080211322 - Multipolar, linear or rotating synchronous direct drive motor: The invention relates to a multipolar, linear or rotating synchronous direct drive motor which comprises a primary part and a secondary part. The primary part comprises a yoke and a plurality of teeth and slots interposed between said teeth, and winding strands of a polyphase winding running inside the slots.... Agent: Bodner & O'rourke, LLP

20080211325 - Electromotive drive: The invention relates to an electromotive drive comprising an electric motor with a commutator that is located in a motor housing, in addition to gearing that is flange-mounted on the electric motor. In the drive, the armature shaft passes through an opening into the interior chamber of a gearing housing.... Agent: Matthew R. Jenkins, Esq.

20080211326 - Inner rotor type permanent magnet excited transverse flux motor: For this, the present invention provides an inner rotor type permanent magnetic excited transverse flux motor comprising: a stator including a stator powdered iron core press-molded using a mold, a stator laminated iron core laminated on upper and lower layer portions of the circumference of the stator powdered iron core... Agent: Finnegan, Henderson, Farabow, Garrett & Dunner LLP

20080211354 - Bearingless step motor: There is provided a bearingless step motor in which a rotating shaft can rotate while rising from a main body by a magnetic force without using a mechanical bearing. The bearingless step motor comprises a stator including stator cores having winding portions and a rotor including a rotating shaft and... Agent: Jones Day

20080211355 - Stepping motor: A rotor rotable about a rotary axis is magnetized so as to have a plurality of poles along a circumferential direction thereof. Stator yokes each of which has a plurality of pole portions facing an outer circumferential face of the rotor is provided. An exciting coil is wound on the... Agent: Whitham, Curtis & Christofferson & Cook, P.C.

20080211327 - Battery pack and electric hand-held power tool: The present invention provides a replaceable battery pack for an electric hand-held power tool (10), which is designed to be attached to the outside of an end face of a handle region (16) of the electric hand-held power tool (10), with a contacting means (30), via which an electrical contact... Agent: Striker, Striker & Stenby

20080211328 - Machine tool and method for operating a machine tool: The invention relates to a machine tool comprising an electric motor (2) which serves to drive a tool and which has an adjustable, electric brush arrangement (3), and comprising a mode selector switch (6) having various switch positions. Provision is made for an adjusting device (8) to displace the brush... Agent: Michael J. Striker

20080211329 - Electric motor: The invention relates to an electric motor, particularly a spindle motor used for driving storage disks in hard disk drives, having a stationary bearing part (14), a shaft (16) rotatably supported in the stationary bearing part, a hub (18) connected to one end of the shaft and an electromagnetic drive... Agent: Cooper & Dunham, LLP

20080211330 - Controller for ac generator: A control system that can accommodate the wide variations in the output of a generator, such as a permanent magnet alternator, while providing an output with relatively uniform phase ripple. The control system includes a zero crossing detector and variable ramp generator for generating control signals to a switching rectifier... Agent: Squire Sanders & Dempsey LLP

20080211356 - Motor: A motor includes a housing having a substantially cylindrical shape accommodating therein a stator portion and a rotor portion. The housing includes a housing body having an opening at an upper side thereof, and a lid portion arranged between an armature and a sensor so as to close the opening... Agent: Nidec Corporation C/o Keating & Bennett, LLP

20080211357 - Motor: A motor includes a sensor which magnetically detects an angular position centered about a central axis of a rotor core with respect to an armature. The sensor preferably includes a yoke which has a substantially annular shape, is made of a magnetic material, is arranged substantially perpendicularly to the central... Agent: Nidec Corporation C/o Keating & Bennett, LLP

20080211331 - Electronic module for rotating electrical machine: An electronic module for a rotary electrical machine which applies to any type of polyphase rotary electrical machine, synchronous or asynchronous, such as alternators or alternator starters, and also whether it is a case of electrical machines for motor vehicles and driven for example by belt, with cooling by air,... Agent: Matthew R. Jenkins, Esq.

20080211332 - Motor: A motor having a busbar unit which is accommodated in a housing along with an armature includes a relay wherein the connection between the armature and the relay is secured. By virtue of such a configuration, reliability of the connection between the armature and the relay is improved. In the... Agent: Nidec Corporation C/o Keating & Bennett, LLP

20080211333 - Disk drive compatible new esters for fdb applications with optimized viscosity: An embodiment of the invention relates to a spindle motor of a magnetic recording storage device, the spindle motor comprising a fluid dynamic bearing comprising a lubricant comprising di-2-ethyl hexyl pimelate, di-2-ethyl hexyl suberate, or combinations thereof.... Agent: Seagate Technology C/o Darby & Darby P.C.

20080211334 - Spindle motor: A spindle motor comprises a fixed shaft member, a sleeve, and an annular chucking portion. The fixed shaft member has an annular collar protruding outward from and substantially perpendicular to the outer peripheral surface of said fixed shaft member, and also has a thrust flange provided a specific distance away... Agent: Wenderoth, Lind & Ponack L.L.P.

20080211335 - Accessory drive system with rd motor: [Solution] An accessory drive system 1 is comprised of a stator 6, a first rotor 5, and a second rotor 7, which respectively include armatures 6a, permanent magnets 5a, and first and second cores 7a and 7b, all of which are arranged in a circumferential direction. One of the first... Agent: Squire, Sanders & Dempsey L.L.P.

20080211336 - Rotating transverse flux machine: A transverse flux rotating machine including a first interacting part including an electric winding and a second interacting part including a plurality of magnetic poles. The first and second interacting parts are movable relative to each other and defining between them an airgap.... Agent: Venable LLP

20080211337 - Claw pole generator and closure body for a claw pole generator: The invention relates to a claw pole generator comprising a claw pole rotor, two magnet wheel halves (21, 23) which are mounted on a drive shaft (15) and are provided with claw-shaped magnet poles (22, 24) that mesh with each other, and an annular closing member (10) located between adjacent... Agent: Michael J. Striker

20080211338 - Electrical rotating machine: An electrical rotating machine with permanent magnets which is configured such that the ratio of the number of magnetic poles of permanent magnets 3 to the number of magnetic poles of coils 12 is at 10:9 or 8:9. The coils 12 are configured such that a middle coil U− and... Agent: Antonelli, Terry, Stout & Kraus, LLP

20080211339 - Rotor for a generator: A rotor (10) for a generator, especially for a turbogenerator, is assembled from a plurality of separate rotor elements (11, 12) which are arranged one behind the other in the rotor axis (18), wherein the rotor elements (11, 12) abut on connecting faces and are welded to one another, forming... Agent: Cermak Kenealy & Vaidya LLP

20080211340 - Rotor of synchronous reluctance motor: A rotor of a synchronous reluctance motor, comprising: a laminated core formed by laminating a plurality of silicon steel sheets, and having a barrier formed at each of regions equally divided on the basis of the center of each silicon steel sheet and a guide pin hole formed between the... Agent: Greenblum & Bernstein, P.L.C

20080211342 - Device for assisting the variable capacity generating movement: A device (10) for assisting the relative movement of two parts of a mechanical system, for example a ball bearing or a gear device, is adapted to form a device with variable capacitance, and thus enabling the mechanical energy to be recovered and converted into electrical energy. To this end,... Agent: Oblon, Spivak, Mcclelland Maier & Neustadt, P.C.

20080211343 - Electrostatic actuator and method for driving electrostatic actuator: [Solving Means] The above-described stator electrodes 23 includes a plurality of electrical systems (A-phase electrodes, B-phase electrodes, and C-phase electrodes) repeatedly disposed in a predetermined order in the moving direction. A pitch (cycle length) 3P1 of the stator electrodes 23 that forms the electrical systems of the same type in... Agent: Beyer Law Group LLP

20080211341 - Wall crawling devices: Described herein is electroadhesion technology that permits controllable adherence between two objects. Electroadhesion uses electrostatic forces of attraction produced by an electrostatic adhesion voltage, which is applied using electrodes in an electroadhesive device. The electrostatic adhesion voltage produces an electric field and electrostatic adherence forces. When the electroadhesive device and... Agent: Beyer Law Group LLP

20080211344 - Boundary acoustic wave device: A dielectric substance is laminated on one surface of a piezoelectric substance, and an IDT and reflectors are disposed as electrodes at a boundary between the piezoelectric substance and the dielectric substance, and the thickness of the electrodes is determined so that the acoustic velocity of the Stoneley wave is... Agent: Murata Manufacturing Company, Ltd. C/o Keating & Bennett, LLP

20080211345 - Method and device for controlling a capacitive load: A tendency of the controlled load to oscillate when controlling a capacitive load can be avoided according to a piezo actuator for an injection valve of an internal combustion engine, having charging and discharging processes for charging and discharging the capacitive load by means of a load current, each loading... Agent: Baker Botts L.L.P. Patent Department

20080211346 - Device for operating a piezo actuator: A first energy control unit has a pilot controller with an applied setpoint energy and outputs a pilot control signal, and a regulator outputting a regulator signal as a function of the setpoint energy and an actual energy of the piezo actuator. The energy control unit creates a control signal... Agent: Baker Botts L.L.P. Patent Department

20080211347 - Circuit system with supply voltage for driving an electromechanical switch: A circuit for controlling operation of a load. In one example, a MEMS switch is positioned in the circuit to place the load in one of a conducting state or a nonconducting state. A piezoelectric transformer provides a relatively high voltage output signal or a relatively low voltage output signal... Agent: General Electric Company Global Research

20080211348 - Linear ultrasound motor: The invention relates to an ultrasound linear piezoelectric motor comprising an ultrasound oscillator (1) embodied in the form of a piezoelectric plate (4) or a cylinder shell part (3), acoustic oscillation generators (5) and a friction element (6) which frictionally interacts with a driven element (8) and is disposed in... Agent: Bodner & O'rourke, LLP

20080211349 - Stage mechanism, electron microscope having the stage mechanism and method of controlling positioning of stage mechanism: An electron microscope stage mechanism capable of performing high-accuracy positioning while limiting vibration and drift. An ultrasonic motor is used in a stage drive mechanism, and a fixing mechanism capable of increasing stop stiffness is combined integrally with the motor. That is, a structure in which a piezoelectric actuator of... Agent: Crowell & Moring LLP Intellectual Property Group

20080211351 - Micromotion mechanism having ultrasonic motor and oscillation element holding mechanism: A micromotion mechanism having an ultrasonic motor includes: a fixing base; a moving element supported to be movable in the moving axis direction with respect to the fixing base; an oscillation element having a rectangular geometry including a first plane parallel to the moving axis direction and provided with a... Agent: Frishauf, Holtz, Goodman & Chick, PC

20080211350 - Piezoelectric resonator element and piezoelectric device: A piezoelectric resonator element includes: a base in a predetermined length, the base being made of a piezoelectric material; a plurality of resonating arms extending from a first end of the base; a joining part connected to a second end apart from the first end of the base by a... Agent: Harness, Dickey & Pierce, P.L.C

20080211352 - Acoustic mirror for a bulk acoustic wave structure: According to one embodiment of the invention, an acoustic mirror structure situated in a bulk acoustic wave structure includes a number of alternating low acoustic impedance and high acoustic impedance layers situated on a substrate. Each high acoustic impedance layer includes a first mole percent of a primary metal and... Agent: Farjami & Farjami LLP

20080211353 - High temperature bimorph actuator: A bimorph actuator has been found that uses commonly available piezoelectric material and is operational up to about 150° C. or one half of Curie temperature, in that it does not exhibit depolarization due to negative electric fields and/or elevated temperature. This result is accomplished by driving both piezoelectric materials... Agent: General Electric Company Global Patent Operation