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Class Information
Number: 318/135
Name: Electricity: motive power systems > Linear-movement motors
Description: Subject matter in which the motor is linear movement type of electric motor.


Patents under this class:
1 2 3 4 5 6 7 8 9 10 11 12 13

Patent Number Title Of Patent Date Issued
7622833 Machine, in particular production machine, machine tool and/or robot Nov. 24, 2009
7619377 Linear motor system Nov. 17, 2009
7615894 Electric motor with a permanent magnet carrier rotating a sprocket Nov. 10, 2009
7597531 Method of controlling mover device Oct. 6, 2009
7598688 Tilting device Oct. 6, 2009
7592760 Lithographic apparatus and device manufacturing method Sep. 22, 2009
7589482 Hot spot sensoring control of linear motors Sep. 15, 2009
7579793 System and method for efficient wide dynamic range coil drive Aug. 25, 2009
7557525 Dual swing gate control system Jul. 7, 2009
7554277 Circuit device for increasing the useable motor voltage in a long stator drive and method for operating a magnetically levitated vehicle provided with said type of circuit device Jun. 30, 2009
7537091 Magnetic elevator door mover May. 26, 2009
7535187 Linear traversing carriage incorporating an air gap inductive motivator May. 19, 2009
7535193 Five axis compensated rotating stage May. 19, 2009
7528560 Driving controlling apparatus of linear compressor and method thereof May. 5, 2009
7528561 Linear drive apparatus May. 5, 2009
7504794 Planar motor Mar. 17, 2009
7504785 System for controlling an electrostatic stepper motor Mar. 17, 2009
7492117 Electromagnetic variable degrees of freedom actuator systems and methods Feb. 17, 2009
7489054 Planar direct drive unit comprising a position measuring system Feb. 10, 2009
7482717 Servo actuator with self positioning rotor and method Jan. 27, 2009
7478539 Two-stage linear compressor Jan. 20, 2009
7478706 Method and apparatus of operating a drive with linear motor Jan. 20, 2009
7477026 Power steering assembly Jan. 13, 2009
7474065 Controlling an electric motor having multiple oscillatory elements Jan. 6, 2009
7468589 Lithographic apparatus having a controlled motor, and motor control system and method Dec. 23, 2008
7468588 Apparatus and method for controlling operation of reciprocating compressor Dec. 23, 2008
7459868 Apparatus for controlling operation of reciprocating compressor and method thereof Dec. 2, 2008
7456529 Wireless encoder Nov. 25, 2008
7456593 Direct drive transport system Nov. 25, 2008
7456592 Apparatus and method for controlling operation of reciprocating compressor Nov. 25, 2008
7453228 Method for controlling a positioning device, positioning device, and lithographic apparatus provided with a positioning device Nov. 18, 2008
7439692 Linear compressor and apparatus to control the same Oct. 21, 2008
7439693 Anomaly detection method and motor control device Oct. 21, 2008
7436135 Method for controlling stage apparatus Oct. 14, 2008
7432791 Magnet arrangement for carrying, guiding and/or braking systems in magnetic levitation vehicles Oct. 7, 2008
7429839 Linear compressor and control method thereof Sep. 30, 2008
7423392 Speed control for an electric linear actuator such as a trailer jack and the like Sep. 9, 2008
7405525 Method for the control of an electric machine and/or device for the control thereof Jul. 29, 2008
7402966 Linear drive with travel measurement Jul. 22, 2008
7391496 Exposure apparatus Jun. 24, 2008
7388338 Device for braking a magnetic levitation railway Jun. 17, 2008
7385363 Linear motor having progressive movement control Jun. 10, 2008
7385362 Method for driving a vibrating device for a portable object that comprises a coil and a moving mass Jun. 10, 2008
7385318 Positioning system, magnetic bearing, and method of controlling the same Jun. 10, 2008
7383929 Anti-vibration technique Jun. 10, 2008
7382440 Lithographic apparatus and device manufacturing method Jun. 3, 2008
7378765 Cylinder-type linear motor and moving part thereof May. 27, 2008
7378809 Controller for controlling an electric machine May. 27, 2008
7375479 Apparatus for processing an object with high position accurancy May. 20, 2008
7372221 Device for adjusting the armature stroke in a reversible linear drive unit May. 13, 2008

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