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| Number | Title | Issue Date |
| 8188628 | Method for mounting an angle measuring device on an electric motor In order to connect an angle measuring device to a brushless direct-current motor, a coupling is used, the coupling halves (10, 28) of which are each attached to the rotor (46) of the motor and/or the rotor (42) of the angle measuring device. In... | 05/29/2012 |
| 7923874 | Nested torsional damper for an electric machine A damper for an electric machine (10) includes a shaft (20) and at least one shaft segment (26) concentric about the shaft (20) and operably connected to the shaft (20). The at least one shaft segment (26) includes a plurali... | 04/12/2011 |
| 7705499 | Device for maintaining the position of a rotatably or displaceably mounted shaft Device for maintaining the position of a rotatably or displaceably mounted shaft, particularly an armature shaft (11) of an electric motor (9), wherein a gripping body (26) is arranged around the shaft (11), and said gripping body is impi... | 04/27/2010 |
| 7649288 | System and method for providing rotation control in a limited rotation motor system A limited rotation motor system is disclosed that includes a rotor shaft mounted within first and second bearing units. The rotor shaft is coupled to a helically shaped torsion member that is fixed with respect to a motor housing. ... | 01/19/2010 |
| 7462967 | Flat hollow brushless servo motor with tool mounting hole A flat, hollow brushless servomotor (1) has a motor housing (2), housing through holes (22a, 23a) formed in a center of both end plate portions (22, 23), a rotor shaft (41) of which a portion of both ends is ex... | 12/09/2008 |
| 7453177 | Magnetic coupling devices and associated methods The magnetic coupling system of the present invention overcomes drawbacks experienced by the prior art. A coupling system in accordance with one embodiment of the invention comprises a rotor assembly having a first mount portion connectable to a first shaft. A condu... | 11/18/2008 |
| 7411328 | Dynamo electric machines A dynamo electric machine for an aircraft gas turbine engine includes a housing supporting a stator of the dynamo electric machine, a rotor assembly rotatably mounted in the housing and including an elongate hollow rotor shaft, a main shaft for connection at one end... | 08/12/2008 |
| 7358635 | Magnetic power transmission devices for oilfield applications A method and apparatus relates to incorporating a magnetic coupling for use in oilfield applications. The magnetic coupling is operatively coupled to an oilfield machine to provide a controlled operational speed. The magnetic coupling may be operatively connected to... | 04/15/2008 |
| 7342342 | Rotary electrical machine and electric vehicle having the same A rotary electrical machine includes a rotational shaft supported by a housing for rotation about an axis, a rotor coupled with the rotational shaft, and a stator fixed to the housing and oriented to face the rotor. A rotor position changing mechanism moves the roto... | 03/11/2008 |
| 7332842 | Fan motor A fan motor includes: a stepping motor for rotating a rotating shaft; an impeller rotated by the rotating shaft; and a connecting member for rotatably connecting the impeller relative to the rotating shaft. The connecting member absorbs an inertia force of the impel... | 02/19/2008 |
| 7325361 | Apparatus and method for providing a modular sliding door mechanism A modular drive assembly for a sliding door, comprising: a guide track having a hinge slidably received therein; a pair of pulleys disposed on either end of the guide track; a pair of cables each having an end that is secured to the hinge and the other end is secure... | 02/05/2008 |
| 7323796 | Motor-driven tool In a motor-driven tool, a carbon brush part 8 is arranged between a suction port 6 and a commutator 11 of the motor and includes a cylindrical side wall 8a. The cylindrical side wall 8a located on an outer periphery o... | 01/29/2008 |
| 7309938 | Rotary power converter A rotary power converter apparatus for coupling power between a prime driver and plural generators. The apparatus includes a frame having a first and second bearing aligned along an axis of rotation and a rotor assembly supported thereby. The rotor assembly includes... | 12/18/2007 |
| 7279818 | Power generating systems A power generating system includes a torque converter system receiving a rotational motion having a first torque from a source and producing a rotational output having a second torque different from the first torque, a transfer system having a first portion coupled ... | 10/09/2007 |
| 7251942 | Integrated gearless and nonlubricated auxiliary power unit An auxiliary power unit (APU) includes a compressor, a turbine, a combustor, and a starter-generator unit all integrated within a single containment housing. The turbine has an output shaft on which the compressor is mounted, and the starter-generator unit is couple... | 08/07/2007 |
| 7243574 | Rotating regulating device A rotating regulating device for the rotation and/or linear displacement of an actuating element of a valve, throttle, blowout preventer or similar, in particular in the field of gas or oil supply, exhibits a spindle drive and a drive train rotationally driving the ... | 07/17/2007 |
| 7235904 | Device for coupling a housing arrangement of a coupling device to a rotor arrangement of an electric machine A device for coupling a housing arrangement of a clutch device, particularly a hydrodynamic clutch device, to a rotor arrangement of an electric machine, wherein the rotor arrangement can be connected to a drive shaft so as to be fixed with respect to rotation relat... | 06/26/2007 |
| 7226378 | Driving device for automatically exerting a variable torque on an output shaft that rotates at a constant speed A driving device includes a power supply unit and a torque converter. The power supply unit outputs a constant power. The torque converter has a gear train that is connected to the power supply unit and interconnects a flywheel and an input shaft in order to respect... | 06/05/2007 |
| 7213482 | Actuator with internal drive train disconnect An electro-mechanical actuator is provided that minimizes back drive effort by de-coupling the internal drive train of the actuator from the actuator output using a clutch. The clutch facilitates transfer of power to an output gear stage when the actuator motor is e... | 05/08/2007 |
| 7159485 | Cantilever dampened drive assembly for windowlift motors A drive assembly 21 is provided for an electric motor 10 having a rotatable shaft 12 including a worm 14. The drive assembly includes an output gear 16 constructed and arranged to mesh with the worm. The output gear includes a plur... | 01/09/2007 |
| 7105965 | Electric motor with the rotor connected to the member that is to be rotated In an electric motor having a rotor (2) and, coaxial therewith, a stator (1), both contained in a frame (3), the motor being capable of rotating a member (4) about an axis of rotation coinciding with the axes of the rotor (2) and s... | 09/12/2006 |
| 7102261 | Coupling device between a rotor of permanent-magnet synchronous motor and a working part A coupling device (11) between a rotor of a synchronous permanent-magnet motor and a working part (17), being advantageously able to ensure an unusual silentness, comprises a driving member (22), being eccentric with respect to the rotor rotatio... | 09/05/2006 |
| 7098563 | Drive system having a hollow motor main shaft and a coaxial, manually driven auxiliary shaft A motor main shaft and auxiliary shaft coaxial drive system to provide dual transmission input or output at single end or both ends by having its main shaft made in hollow to receive insertion of an auxiliary shaft coaxially; with separate transmission to link to re... | 08/29/2006 |
| 7061151 | Supporting device of rotor A supporting device of a rotor includes a ceramic axial tube fixed on the rotor, and a ceramic axial support rotationally supporting the ceramic axial tube, wherein the spacing between the ceramic axial tube and the ceramic axial support is within the range of 2–2... | 06/13/2006 |
| 6949854 | Method and apparatus for a continuously variable-ratio transmission A method and apparatus for providing a continuously variable transmission (CVT) is described. The CVT comprises permanent magnets to couple power, a coefficient of coupling controlled by an electronic servo control loop. Wherein torque multiplication is achieved by ... | 09/27/2005 |
| 6927513 | Electromechanical screw drive actuator An electromechanical linear actuator assembly having in-line axial load support of its screw drive shaft is provided. The bearing support structure provides a single in-line ball bearing accommodated within a hardened end fitting and a screw pivot recess in the axia... | 08/09/2005 |
| 6920943 | Mapping tool for tracking and/or guiding an underground boring tool A portable mapping tool for use in a horizontal drilling system and associated methods use a boring tool configured for transmitting a locating signal. The mapping tool also includes at least one electromagnetic field detector which is configured for measuring the l... | 07/26/2005 |
| 6891292 | Series of motors A series of fabricated products for electrically rotatably driven machines, especially alternating current motors for attachment on drives, for alternating current motors having various pole configurations and operable in differing performance classes, voltage class... | 05/10/2005 |
| 6809440 | Space-saving, damping coupling mechanism for worms in geared actuators A transmission member for a worm gear having a thrust ring placed over the shaft of a motor. The worm gear is slip-fit over the shaft and has a coupling head with a pair of projections facing away from the motor. A coupling washer is press-fit onto the motor shaft a... | 10/26/2004 |
| 6731033 | Motor-driven system with stator provided with inductors There is provided a motor-driven system which realizes an optimum driving mode for an electric automobile, a robot carrier car, a drum of a copying machine, etc., and a motor-driven system having a function as an optimum actuator for such driving. In a rotational el... | 05/04/2004 |
| 6710482 | Generator A generator comprising a generator housing and a generator drive shaft including a power input shaft coupled to a drive member through a coupling arrangement, whereby in use the drive member is coupled to an output shaft of an associated engine. The coupling arrange... | 03/23/2004 |
| 6700263 | Electrical generating system having a magnetic coupling An electrical generating system including an electric motor coupled to a power source, such as a solar panel array. A magnetic coupling is connected to an output shaft of the motor. The magnetic coupling includes opposed first and second plates each havin... | 03/02/2004 |
| 6661137 | Drive element such as a driving wheel or a hoisting winch, the element comprising a synchronous motor The present invention relates to a drive element such as a driving wheel for a goods-handling cart or the like, or such as a hoisting winch, the drive element comprising a wheel or a drum and an electric motor for rotating the wheel or the drum. The elect... | 12/09/2003 |
| 6628025 | Micro-motor and apparatus using the same motor A motor includes (a) a cylindrical frame made of ferromagnetic material, (b) a pipe fitted in and disposed within the frame concentrically, (c) a sintered bearing press-fitted into the pipe, (d) a cylindrical magnet fixed on an outer wall of the pipe at a... | 09/30/2003 |
| 6607385 | Method and device for limiting the torque of dental and surgical handpieces In a method for controlling a torque of a motor of dental and surgical handpieces to not exceed a set-point value when screwing in implant members, a motor current for applying the set-point torque is determined immediately before screwing in an implant m... | 08/19/2003 |
| 6509668 | Electric motor, in particular for hand power tools An electric motor for hand power tools has a rotor shaft, a rotor provided with a metal plate pack which is rotatably supported and non rotatably connected with the rotor shaft, the metal plate pack having a plurality of grooves which are spaced from one ... | 01/21/2003 |
| 6504276 | Motor actuator having simplified interfitting connection In a connection between a motor and a position detector that together constitute a motor actuator, a connection shaft of the position detector is engaged with an outer peripheral surface of a motor output shaft, and a shaft portion of the connection shaft... | 01/07/2003 |
| 6417591 | Magnetic coupling mechanism for use in laser apparatus A magnetic coupling mechanism which can transmit rotational force of a motor with high efficiency and is simple in mechanism and unlikely to damage bearings, etc. and also unlikely to contaminate a laser gas, and in which flakes from plating or the like w... | 07/09/2002 |
| 6287204 | Adjustable torque limiter A torque limiter is formed of a shaft, a cylindrical magnet attached to an outer periphery of the shaft, and a housing for rotationally supporting the axial ends of the shaft and formed of first and second housing portions. A magnetizable member in a cyli... | 09/11/2001 |
| 6249070 | Rotating assembly and support therefor A shaft (14) is formed with a magnetically transparent portion within its length, so as to enable passage therethrough of electromagnetic flux from stator poles, to a further shaft (20) to cause shaft (20) to move to a position in space, coaxial with the ... | 06/19/2001 |
