Patents
Patents for H02K 41 - Propulsion systems in which a rigid body is moved along a path due to dynamo-electric interaction between the body and a magnetic field travelling along the path (10,066)
10/1998
10/27/1998US5828142 Platen for use with lithographic stages and method of making same
10/27/1998US5828054 Focusing method and system for focus capture and focus control in optical disc system including detection of Quad Sum signal to close focus
10/21/1998EP0872009A1 One-piece magnet return path assembly for a disk drive actuator
10/20/1998US5825104 Small linear motor table
10/15/1998WO1998045927A1 Unilateral transverse flux machine with a multi-strand design
10/15/1998DE19714895A1 Einseitige Transversalflußmaschine in ein- und mehrsträngiger Ausführung Unilateral transverse flux in single and multi-strand design
10/14/1998EP0871284A2 X-Y Table to move loads with high precision and very high dynamic
10/14/1998EP0746703B1 Process and device for active vibration damping
10/13/1998US5822156 Magnetic circuit of a coil motor
10/07/1998EP0869340A2 A device for supporting and linearly moving a movable member
10/07/1998EP0868962A2 Apparatus for moving a tool
10/07/1998EP0868774A1 Electrical synchronous linear motor and method for determining the commutation offset of a linear drive with said electrical synchronous linear motor
10/07/1998EP0868773A1 Attachment device for mounting and/or removing a primary coil block of a linear motor on a movable member
10/07/1998EP0821596A4 Sealless rotary blood pump with passive magnetic radial bearings and blood immersed axial bearings
10/06/1998US5818666 Linear drive motor apparatus for adjusting the relative position between and second yokes of a pair of magnetic circuits
10/06/1998US5818177 Variable-reluctance synchronous electric linear actuator
10/06/1998US5818144 Linear-type induction motor
10/01/1998DE19712893A1 Asynchronous multi-coordinate drive
09/1998
09/30/1998EP0868012A1 Fully enclosed linear motor armature
09/30/1998EP0868011A1 Fluid-cooled linear motor armature
09/29/1998US5813110 For upsetting rivets
09/22/1998US5809892 Web-threading or infeeding device for a machine processing web-shaped material, in particular a web-fed rotary printing machine, and method of threading a web of material into such a machine
09/15/1998US5808980 Seek actuator for optical recording
09/15/1998US5808382 Linear motor device for machine tool
09/15/1998US5808381 Linear motor
09/15/1998US5808379 Bi-directional linear drive motor
09/15/1998US5808302 Fine positioning apparatus with atomic resolution
09/15/1998US5808246 Triac drive for three-phase line-powered linear induction motor elevator door operator
09/15/1998CA2101407C High-force linear motor assembly using tandem axes
09/08/1998US5804901 Energy conversion device using permanent magnets
09/08/1998US5804898 Electric motor utilizing magnetic energy of permanent magnet
09/03/1998WO1998038723A1 Method of converting electrical energy into mechanical energy of rotating shaft and method of producing mechanical energy of rotating shaft
09/01/1998US5801462 Linear motor and image reading apparatus
09/01/1998US5799755 Linear motor transfer of cab horizontally between elevator and bogey platforms
08/1998
08/27/1998WO1998037624A2 Direct drive with internal sensors and a control device
08/27/1998WO1998037616A1 Electromagnetic apparatus for producing linear motion
08/27/1998WO1998037615A1 Apparatus for producing linear motion
08/25/1998US5798590 Multi-degree-freedom electric motor
08/25/1998US5798582 For use with an electrical power source
08/20/1998WO1998035904A1 Linear motor for driving an elevator car
08/19/1998EP0858965A1 Linear motor for driving an elevator car
08/19/1998EP0858693A2 Elongate stator for a linear motor and bundle of laminations for producing said elongate stator
08/19/1998EP0858690A1 Device for connecting the electrically conducting jacket of a line to an earth lead
08/19/1998CN1190746A Straight line movement promoting device and optical equipment using it
08/18/1998US5796703 Apparatus for controlling an electrical current passed to a writing device in an optical storage system
08/18/1998US5796186 Linear motor
08/13/1998WO1998035165A1 Motors, and bearings therefor
08/13/1998DE19704504A1 Electric motor with sub-divided windings e.g. for drive- or feed-motor in machine tools
08/11/1998US5793834 Method for detecting position of linear stepping motor and apparatus therefor
08/11/1998US5793128 Encoder and motor with an encoder
08/11/1998CA2135817C Combined linear-rotary stepping motor
08/05/1998EP0856854A2 Electromagnetic actuators
08/05/1998CN1189714A 直线电机 Linear Motor
08/04/1998US5789892 XY drive apparatus equipped with a linear electromagnetic actuator
08/04/1998US5789830 In-line rotational drive
08/04/1998US5788171 Method and apparatus for detecting residual bobbin thread in a sewing machine
08/04/1998CA2118341C Method of manufacturing an iron core of a multi-phase linear motor
07/1998
07/30/1998WO1998032377A1 Rotating mechanism for dental panorex
07/30/1998DE19702348A1 Secondary magnetic circuit based on magnetic body with slots for asynchronous linear induction motor
07/28/1998US5786936 Image stabilizing device
07/22/1998EP0854561A2 Thermo-sensitive actuator and idle speed controller employing the same
07/22/1998CA2195696A1 Fail-safe actuator with two permanent magnets
07/21/1998US5783915 Linear actuating apparatus
07/21/1998US5783878 Self-regulating electromagnetic levitation catapult
07/21/1998US5783877 Linear motor with improved cooling
07/15/1998EP0853313A2 Optical disc system
07/15/1998EP0793870B1 Permanent magnet synchronous motor
07/14/1998CA2122095C Linear pulse motor
07/08/1998EP0852379A2 Method of changing rotational rate of storage medium from initial rate to desired rate
07/08/1998CN1187267A Electromagnetic actuator
07/07/1998US5777403 Voice coil motor with air guide and air bellows
07/07/1998US5777402 Two-axis motor with high density magnetic platen
07/02/1998DE19654664A1 Stator plate for planar hybrid stepper motor
06/1998
06/30/1998US5773941 Two-wire brushless DC motor control system
06/24/1998CN1185410A High-performance linear induction motor driven door-operator
06/24/1998CN1185409A Secondary-stage guiding system for lift-cabin door driven by linear induction motor
06/23/1998US5770899 Linear motor
06/17/1998EP0847613A1 Electric motor
06/17/1998EP0594757B1 Electromagnetic apparatus for producing linear motion
06/17/1998CN1184771A Flexible mounting of motor secondary in linear induction motor for driving elevator car doors
06/16/1998US5768050 Hard disk drive using a rotary actuator and having an isolated voice coil motor
06/16/1998US5767402 Material testing system having DC brushless linear motor
06/10/1998CN1184370A Linear electric motor
06/09/1998US5763966 Single plane motor system generating orthogonal movement
06/09/1998US5763965 Linearly displaceable precision table
06/04/1998DE19649357A1 Direct drive
06/03/1998EP0845851A1 Synchronous linearmotor with passive stator
06/03/1998EP0845170A1 Interlaced conductor/back-iron secondary for induction motors
06/03/1998CN1183670A System for optimization of magnetizing current in linear induction motors
06/02/1998US5761000 Data storage devices having a slim-type hard disk drive suitable for use in portable computers
06/02/1998US5760500 XY table using a linear electromagnetic actuator
06/02/1998US5758666 Reciprocating pump with imperforate piston
05/1998
05/28/1998WO1998023024A1 Electronically switched two phases reluctance machine
05/27/1998CN1182713A Transversal reciprocative moving overhead trolley system
05/27/1998CN1182712A Linear motor transfer of cab horizontally between elevator and bogey platforms
05/26/1998US5757091 Permanent magnet field pole for linear motor
05/26/1998US5756946 Flexible mounting of a motor secondary in a linear induction motor for driving elevator car doors
05/26/1998CA2057978C Friction welder having an electromagnetic drive which produces orbital motion
05/22/1998WO1998021810A1 Optical position-measurement device
05/22/1998WO1998021715A1 Slotted flex circuit and outer return path for a disk drive actuator
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