Class 318/35 - Motors with diverse motions (e.g., reciprocating and rotary motors)

Subclass of Class 318 - Electricity: motive power systems
Definition: Subject matter in which there are one or more motors having
No. of patents: 35
Last issue date: 04/01/2008

Number	Title	Issue Date
7351110	KVM switch A KVM switch with an expansion module slot is disclosed. The KVM switch comprises a housing, a printed circuit board and an expansion module slot. The housing includes a receiving space, a panel disposed at a side thereof and a removable back panel disposed at anoth...	04/01/2008
7348695	Linear motor, moving stage system, exposure apparatus, and device manufacturing method A linear motor includes a coil and a plurality of magnets disposed along a central axis of the coil. The magnetization directions of the plurality of magnets have different tilts with respect to the central axis. ...	03/25/2008
7210887	Bookbinding machine A bookbinding machine for processing inner books includes a transport system with a multiplicity of inner-book clamps continually movable in a closed continuous track. Each of the inner book clamps is articulated to a circulating roller chain and has a rear-edge sto...	05/01/2007
7180253	Method and system for generating multi-dimensional motion profiles A motion control system comprises control logic and a programming interface. The programming interface is configured to permit a user to specify a plurality of non-tangential path segments, and the control logic is configured to generate a plurality of additional co...	02/20/2007
7145300	Multi-axis AC servo control system and method A multiple axis servo control implements a multi-tasking PWM control unit to provide PWM signals for multiple axes in a single unit. A time slice mechanism provides axis selection signals based on a system clock signal to permit control parameters of the selected ax...	12/05/2006
7146242	Method and system for generating multi-dimensional motion profiles A system comprises control logic and a programming interface. The programming interface is configured to permit a user to specify a plurality of weighting points in a multi-dimensional coordinate space. The control logic includes spline computation logic configured ...	12/05/2006
7121400	Systems and methods for guiding conveyance elements Systems and methods for controlling the planarity of a conveyance element with respect to a guide while the conveyance element is in motion. This control is achieved by coupling a guide to a conveyance element where the conveyance element is held in a level position...	10/17/2006
7109679	Damping for electromechanical actuators Oscillation and other disturbance damping is provided for a system having a load driven by an electric motor, e.g., an electromagnetic actuator. Damping is achieved using feedback in an active mode, where power is supplied in a normal operation mode of the electroma...	09/19/2006
7023160	Method for controlling doubly-fed machine A method for operating a doubly-fed machine by determining its rotational speed (nact), forming a rotational speed reference (nref), measuring network voltage and current, and calculating network active power (Pact) and reactive powe...	04/04/2006
6975086	Positioning control method A pre-compensator is provided based on a definition of abase vibration model having a motor transfer function 1 for generating motor displacement 12 from an input that is the sum of input torque and a table propelling force 10 multiplied with a ...	12/13/2005
6587038	Alarm generation using a motor A system and method for generating an audible sound in an imaging device is provided, the device having an electronic motor controllable by a first operation sequence to perform a first function. When a condition is detected for which an audible sound is ...	07/01/2003
6307346	Induction motor load limiting for power steering applications A power steering system and induction motor load compensation algorithm or processing method for use in a vehicle. The power steering system comprises a power supply, a power steering motor, a steering subsystem, and a power steering controller coupled to...	10/23/2001
6211591	Linear/rotary electromagnetic device In a preferred embodiment, a linear/rotary electromagnetic device, including: a housing (20); first and second stators (22 and 40) disposed in the housing, first and second rotors (24/26 and 42/44) disposed in the housing and magnetically interacting, res...	04/03/2001
6201512	Biaxially rotational structure A biaxially rotational structure for a planar antenna comprises a biaxial base having a vertical direction and a horizontal direction, a vertical shaft assembly disposed at the vertical direction of the biaxial base, the vertical shaft assembly has a rota...	03/13/2001
6157159	Stage system and exposure apparatus using the same A stage system includes a stage movable along a path, a first driving mechanism for accelerating or decelerating the stage on the basis of a resilience force of a resilient member, a first holding mechanism for holding a resilience force being accumulated...	12/05/2000
6121735	Actuator with start-stop operation The present invention relates to an electronically adjustable actuator for actuating a plurality of actuating elements, such as valves. A control unit is provided for generating actuating signals to cause each of the valves to move with one another in a s...	09/19/2000
5895177	Machine tool with fault detection A machine tool includes a spindle having a cutting tool for cutting a workpiece. For fault detection, a control unit of the machine tool detects a value representing a torque applied on the spindle while the spindle is stopped in a state the cutting tool ...	04/20/1999
5877605	Servo device having plural servo systems A servo device which simultaneously controls plural servo systems, using a digital signal processor (DSP). The servo device includes plural servo systems, plural control subjects, and plural sensors which determine control quantities of the respective con...	03/02/1999
5874812	Segmented drive system for a binding line A drive control system for a binding line having first and second separate binding-line segments, includes a first motor for driving the first binding-line segment, a second motor independent of the first motor for driving the second binding-line segment,...	02/23/1999
5777443	Segmented drive system for a binding line A drive control system for a binding line having first and second separate binding-line segments, includes a first motor for driving the first binding-line segment, a second motor independent of the first motor for driving the second binding-line segment,...	07/07/1998
5726542	Stage apparatus Position apparatus for controlling the movement of a table, on which a semiconductor work is carried along a unidirectional path in rectangular coordinate system. The table is driven in a single plane by x and y coordinate drive control means. The positio...	03/10/1998
5625267	Constant delay filtering for synchronized motion on multiple axes In a linear feedback servo control system, the motion profile for each axis is pre-filtered before it is introduced to the servo loop for that axis. The motion profile is pre-filtered by a filter having an inverse amplitude response to the amplitude respo...	04/29/1997
5463292	Imaging apparatus having rotary table In an imaging apparatus with rotary table having a plurality of control items, operation completion of control items, such as horizontal angle, vertical angle, zoom and focus, of the imaging apparatus and the rotary table is detected by respective complet...	10/31/1995
5345154	Electric continuously variable transmission and controls for operation of a heat engine in a closed-loop power-control mode A heat engine operates an alternator that supplies electrical power to an electric continuously variable transmission for driving at least one ac motor through a differential to multiple wheels or to multiple independent ac wheel motors in an automobile, ...	09/06/1994
5331539	Mailing machine including multiple channel pulse width modulated signal circuit Apparatus for generating a plurality of pulse width modulated signals for separately driving a plurality of electrical loads, comprising, a microprocessor, a plurality of comparator means, each of the comparator structure including first and second input ...	07/19/1994
5248922	Multi-DSP, multi-functional motion controller A motion controller, which is adaptable to a variety of different motors, provides motor control signals to the motors of a multi-axis coordinated system as a function of position and velocity commands from a host computer. The motion controller configure...	09/28/1993
5153485	Biaxial rotary drive unit A biaxial rotary drive unit drives an antenna Ant on a vehicle for rotation in both azimuthal and elevational directions. A first axis Y represents a vertical axis, and an azimuth turntable 120 is rotatable about the first axis. The second axis X represen...	10/06/1992
5125321	Apparatus for and method of operating a cylindrical pulsed induction mass launcher An electromagnetic cylindrical projectile mass launcher and a method of operation is provided which includes a cylindrical projectile having a conducting armature, a cylindrical barrel in which the armature is received, a plurality of electromagnetic driv...	06/30/1992
5093972	Tapping control unit A control unit capable of driving a compound lathe so that an end face of a rotating workpiece can be tapped. The control unit (100) comprises first and second control circuits (110, 120) for controlling the rotation of first and second spindles (10, 20) ...	03/10/1992
5093596	Combined linear-rotary direct drive step motor A combined linear-rotary direct drive step motor, having a rotary section and a linear section in a single housing, comprising a cylindrically shaped variable reluctance linear step motor; a modified hybrid permanent-magnet rotary step motor; and a common...	03/03/1992
5051635	Ball-splined shaft assembly A ball-splined shaft assembly suitable for use in a robot arm or the like is provided. The assembly includes a shaft formed with a plurality of circumferential grooves spaced apart from one another at a predetermined pitch and a pair of longitudinal groov...	09/24/1991
4852434	Machine tool with a sliding screw drive A machine tool having a work spindle with an electrically actuated clamping unit including a three-phase motor with a stationary stator. The motor is supplied with electricity from a control unit operating with frequency conversion, and the control unit i...	08/01/1989
4741271	Projectile for round bore electromagnetic launchers with spin produced or prevented by electromagnetic means A projectile for use in an electromagnetic projectile launcher is provided with a conductive open loop which is mechanically attached to the body of the projectile. Means are provided for electrically connecting the open loop between a pair of generally p...	05/03/1988
4092568	Interpolating stepping motor system A driven load is advanced to a selected position by the rotor of a large angle step motor, the housing of which is driven by a small angle step motor having a stationary housing. Driving pulses are fed to the plural phase windings associated with the larg...	05/30/1978

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Class 318/35 - Motors with diverse motions (e.g., reciprocating and rotary motors)