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)
08/1999
08/31/1999US5945747 Apparatus for moving a tool
08/26/1999WO1999043073A1 Linear stepper motor
08/26/1999WO1999042245A1 Linear drive
08/26/1999DE4143440C2 Electric motor with radial flux rotor
08/26/1999DE19806832A1 Electrical linear actuator with cased carrier for use in e.g. framed hexapod machine tools offering six degrees of freedom
08/25/1999EP0937328A1 Electromotive adjustable drive
08/24/1999US5943194 Linear actuator
08/24/1999US5942817 Linear motor having automatic armature windings switching at minimum current points
08/24/1999CA2029698C Linear motor conveyance system
08/19/1999WO1999041825A1 Linear motor
08/17/1999US5939804 Linear actuator and optical equipment using the same
08/17/1999US5939793 Starter for drive units, especially internal combustion engines, and process for operating the same
08/10/1999US5936319 Wireless permanent magnet linear motor with magnetically controlled armature switching and magnetic encoder
08/05/1999WO1999013681A3 Aerogels, piezoelectric devices, and uses therefor
08/05/1999DE19803953A1 Direct drive with 4 axes of motion operating on hybrid stepper motor principle
08/05/1999DE19803952A1 Direct drive with air bearing for linear, planar and rotary movement, operating on hybrid stepper motor principle
08/05/1999DE19803951A1 Direct drive for linear and planar movements operating on hybrid stepper motor principle
08/04/1999CN1044541C Lightweight high power electromagnetic transducer
07/1999
07/28/1999EP0819334B1 Pressurized air-gap guided active linear motor suspension system
07/28/1999CN2331125Y Linear speed measurement generator
07/27/1999US5929542 Micromechanical stepper motor
07/27/1999US5929541 Synchronous machine
07/22/1999WO1999019972A3 A linear electromagnetic machine
07/22/1999DE19800410A1 Linear motor for rail borne vehicles
07/20/1999US5925963 Magnetic circuit structure for a DC electrical machine having high resistance to cross magnetic flux
07/20/1999US5925956 Stage construction incorporating magnetically levitated movable stage
07/20/1999US5925943 Modular wireless linear motor
07/20/1999US5924518 Linear drive electric assist steering system
07/14/1999EP0928493A1 System and method for servo control of nonlinear electromagnetic actuators
07/13/1999US5921149 System and process for active vibration damping
07/08/1999DE19814129C1 Magnetic levitation railway mounting
07/06/1999US5920539 Apparatus and method for suppression of electromagnetic emissions having a groove on an external surface for passing an electrical conductor
07/06/1999US5920164 Brushless linear motor
07/01/1999DE19756575A1 Electric installation motor with stator unit rotor windings surrounding magnet field carrying parts
06/1999
06/29/1999US5915323 For propelling a ship through a body of water
06/24/1999DE19833418A1 Three-phase AC winding for stator of linear motor
06/22/1999US5914836 Cantilevered support for the magnetic circuit of a disc drive voice coil motor
06/17/1999DE19754921A1 Electric motor
06/17/1999DE19754920A1 Electric motor
06/16/1999CN2324697Y Moving-coil electromagnetic driving unit
06/16/1999CN1219907A Sheet conveying system for rotary printer
06/15/1999US5913091 Image reading apparatus
06/09/1999EP0921525A2 Disk drive
06/09/1999EP0808527B1 Electric machine
06/09/1999CN2323508Y Cascade linear motor
06/08/1999US5910720 Cross-shaped torsional spring
06/08/1999US5910691 Permanent-magnet linear synchronous motor
06/03/1999WO1999027635A1 Dynamo-electric machine rotating by electromagnetic induction such as it acts in linear electric motors
06/03/1999WO1999026675A1 Blood pump drive mechanism
06/02/1999EP0919079A1 Linear motor with improved coil design and heat removal
06/01/1999US5909066 Linear motor apparatus employing linear motor as drive source
06/01/1999CA2101402C Multi-axis linear motor positioner with y-axis supported at single end
05/1999
05/26/1999EP0918392A1 Linear motor
05/26/1999EP0918327A1 Disk drive
05/25/1999US5907455 Distributed spindle motor integrated with disc
05/25/1999US5907202 Thermo-sensitive actuator and idle speed controller employing the same
05/25/1999US5907200 Linear encoder
05/25/1999US5907199 For use in a motor vehicle
05/25/1999US5906311 Aluminum
05/20/1999DE19753041A1 Servo-linear motor for driving pump
05/20/1999DE19750743A1 DC motor
05/19/1999EP0916038A1 Motion damper with electrical amplifier, and lithographic device with such a motion damper
05/14/1999WO1999023744A1 Electromechanical transducer
05/14/1999WO1999023388A1 Linear module
05/12/1999EP0915553A2 Linear motor
05/06/1999DE19829318A1 Linearmodul Linear Module
05/04/1999US5901008 Voice coil driven positioner for coarse and fine positioning of magnetic head in multi-track tape drive
05/04/1999CA2011401C Shaft conveyance system
04/1999
04/28/1999EP0910743A1 Linear compressor motor
04/28/1999CN1215243A Shell secondary pole type pipe-shape straight-line induction motor
04/27/1999US5898244 Dual-directional field coil actuator
04/27/1999US5896951 Optimization of magnetizing current in linear induction motors
04/22/1999WO1999019973A1 Electromagnetic apparatus for producing linear motion
04/22/1999WO1999019972A2 A linear electromagnetic machine
04/22/1999WO1999019971A1 Three-degrees-of-freedom motor
04/22/1999CA2310024A1 A linear electromagnetic machine
04/21/1999CN2315714Y High power factor straight line inductive motor
04/15/1999WO1999018652A1 Improved brushless linear motor
04/15/1999WO1999018650A1 Magnetic positioner having a single moving part
04/14/1999EP0907515A1 Sheet conveyer for a rotary press
04/13/1999US5894177 Segmented armature winding for a DC motor
04/08/1999DE19811126A1 Magnetic disc drive for computers
04/07/1999EP0845170B1 Interlaced conductor/back-iron secondary for induction motors
04/07/1999EP0783662B1 Fine positioning apparatus with atomic resolution
04/07/1999CN1213136A Information recording apparatus with voice coil motor and cover thereof
04/01/1999WO1999016058A1 Improved rotary disc drive actuator
03/1999
03/31/1999EP0905869A2 Linear motor mechanism for exposure apparatus, and device manufacturing method using the same
03/31/1999EP0905868A1 Low armature reaction X type magnetic circuit structure
03/30/1999US5889341 Multi-functional apparatus employing a linear wiper
03/30/1999US5889340 Elongate stator for a linear motor and bundle of laminations for producing said elongate stator
03/30/1999US5887334 Method for splicing a linear stepper motor platen
03/25/1999WO1999014842A1 Actuator with opposing repulsive magnetic forces
03/25/1999WO1998058866A3 Elevator with linear rotor
03/25/1999DE19739068A1 Elektromotorischer Verstellantrieb Electromotive adjustment
03/24/1999EP0903004A1 Modular direct driving device and method for manufacturing an active component of same
03/23/1999US5886432 Magnetically-positioned X-Y stage having six-degrees of freedom
03/18/1999WO1999013681A2 Aerogels, piezoelectric devices, and uses therefor
03/18/1999WO1999013557A1 Electromotive adjustable drive
03/17/1999EP0901797A2 Sealless rotary blood pump
03/17/1999CN2311098Y 直线电磁驱动装置 Linear electromagnetic driving apparatus
1 ... 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 ... 101