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| Number | Title | Issue Date |
| 7679226 | Synchronous linear motor with non-contacting scanning of the toothed structure of the secondary part The aim of the invention is the equipping of a synchronous linear motor with a non-permanently-magnetic secondary part with a simple positional measuring system. Said aim is achieved, whereby the tooth structure of the toothed rack-shaped non-permanently-magnetic se... | 03/16/2010 |
| 7429845 | System and method for controlling a stage assembly A stage assembly (220) that moves a work piece (200) a movement step (257) includes a first stage (238), a first mover assembly (242), a second stage (240), and a second mover assembly (244). The first mover assembly ... | 09/30/2008 |
| 7362014 | Method and arrangement for operating a magnetically levitated vehicle The invention relates to a method and an arrangement for operating a magnetically levitated vehicle by means of an arrangement having at least one long-stator linear motor. The linear motors are sub-divided longitudinally of a track into individual motor regions (A | 04/22/2008 |
| 7339333 | Motor drive control apparatus, motor drive control method and program of the same A general-purpose comparator can be used as a comparison processing module to reduce the costs of a motor drive control apparatus. The apparatus has an electric machine; a magnetic pole position computation processing module; a pattern generation processing module; ... | 03/04/2008 |
| 7339690 | Identification card printer with client/server An identification card printer for printing an image on an identification card, is provided which includes a print mechanism adapted to deposit material on to the card. A network adapter is configured to couple to a network. A print drive module controls the print m... | 03/04/2008 |
| 7339346 | Motor and drive control device therefor The invention provides a motor for a brushless DC motor, which has small torque ripple even if a trapezoidal wave current is supplied and has a small size and reduced motor noise, and a drive control device for the motor as well as an electric power steering apparat... | 03/04/2008 |
| 7329453 | White, heatsealable, peelable polyester film, process for its production and its use Coextruded, biaxially oriented polyester films which have a white base layer (B) and have a heatsealable outer layer (A) that can be peeled from APET/CPET and from CPET, where the outer layer (A) includes a) from 80 ... | 02/12/2008 |
| 7316558 | Devices for stretching polymer films Stretched polymeric films can be used in a variety of applications, including optical applications. The stretching conditions and shape of the stretching tracks in a stretching apparatus can determine or influence film properties. Methods and stretching apparatuses ... | 01/08/2008 |
| 7304448 | Developing apparatus and image processing system with the developing apparatus A developing apparatus is capable of moving a stage for supporting a substance to be developed from a detachable position to a developing area below a developing unit, and two-dimensional movement. The present developing apparatus includes a developing device, a fir... | 12/04/2007 |
| 7290146 | Managed credential issuance In a method of issuing a credential, a request for issuance of the credential is received. Next, a unique identification for the requested credential is assigned and data elements corresponding to the credential are provided. A credential production data collection ... | 10/30/2007 |
| 7282874 | Alignment apparatus, exposure apparatus, and device manufacturing method An alignment apparatus which moves a object comprises a first structure having a holding member which holds the object, a second structure having a magnet which constitutes a linear motor, the linear motor drives the first and second structure, and a flow passage fo... | 10/16/2007 |
| 7262575 | Method and apparatus for precise positioning of an object with linear stepper motors Methods and apparatus for precise positioning of an object using linear actuators based on linear stepper motors operating in microstepping or full step mode, a control algorithm based on compensation table, and a calibration apparatus for obtaining the compensation... | 08/28/2007 |
| 7249668 | Positive displacement sorter shoe A positive displacement sorter apparatus and method includes providing a plurality of interconnected slats defining an endless web, an upper run of the web defining a conveying surface. A plurality of pusher shoes are provided, each moving along at least one of the ... | 07/31/2007 |
| 7245093 | Turn-on interlock for propelling a vehicle, in particular a magnetic levitation train, along a track and a drive with a corresponding turn-on interlock A turn-on interlock for propelling a vehicle, in particular a magnetic levitation train (maglev), along a track is disclosed, as well as a drive incorporating the turn-on interlock. A stator of a linear motor forming the drive and extending along the track is divide... | 07/17/2007 |
| 7245092 | Alignment stage apparatus, exposure apparatus, and semiconductor device manufacturing method An alignment stage apparatus including a vacuum chamber, a linear motor including a plurality of coils to drive a stage, a coil selector which selectively energizes the plurality of coils, and a storage box arranged to store the coil selector. The interior of the st... | 07/17/2007 |
| 7237485 | Print supply monitoring An identification card printer includes a card input, a card transport, a printhead, and a card output. The card transport is configured to feed a card from the card input along a print path. The printhead is positioned below the print path and is configured to prin... | 07/03/2007 |
| 7233119 | Method and circuit arrangement for the sensorless determination of load states of synchronous linear motors The invention relates to a method and to a circuit arrangement used to regulate synchronous linear motors, especially linear drive mechanisms in film drawing systems. The force (Fclip) between the stationary primary part and the moved secondary part is de... | 06/19/2007 |
| 7211306 | Peelable polyester film with self-venting, process for its production and its use Coextruded, biaxially oriented polyester films which have a base layer (B) and have a heatsealable outer layer (A) that can be peeled from APET/CPET and from CPET, where the outer layer (A) includes a) from 80 to 98% by weight of polyester and ... | 05/01/2007 |
| 7205040 | Peelable polyester film having improved oxygen barrier, process for its production and its use Coextruded, biaxially oriented polyester films which have a base layer (B) and have a heatsealable outer layer (A) that can be peeled from APET/CPET and from CPET, where the outer layer (A) comprises from 80 to 99% by weight of polyester and | 04/17/2007 |
| 7202615 | Tubular linear synchronous motor control for elevator doors An apparatus for effecting non-contact linear door displacement comprising a tubular motor formed of a stator (1) formed from a plurality of magnets (21) arranged along a linear axis (15), and at least one thrust block (3) each formed of ... | 04/10/2007 |
| 7173387 | Arrangement having at least one long-stator linear motor, for operating magnetically levitated vehicles The invention relates to an arrangement for operating a magnetically levitated vehicle by means of an arrangement having at least one long-stator linear motor. The linear motors are sub-divided, longitudinally of a track, into individual motor regions (A) in each of... | 02/06/2007 |
| 7170202 | Linear motor In a linear motor according to this invention, the field permanent magnets 2 are arranged at an equal pitch around a field iron core 1 so that the poles are alternately changed. Also, an armature 3a on the needle side is arranged opposite... | 01/30/2007 |
| 7154519 | Printer and ribbon cartridge A printer includes a substrate input, a substrate transport, a printhead, a removable ribbon cartridge, a ribbon cartridge receiver, and a substrate output. The substrate transport is configured to feed a substrate from the substrate input along a print path. The pr... | 12/26/2006 |
| 7134258 | Packaging apparatus and methods A packaging system includes a transport defined by a linear motor driving independent elements in a path to carry out a packaging function. The elements are driven independently of other elements in the path and are driven by the linear motor in a section of the pat... | 11/14/2006 |
| 7135827 | Sawyer motor forcer with integrated drive electronics A digitally controlled, integrated Sawyer motor forcer consists of a rigid mechanical housing containing one or more linear motor segments, integrated control electronics, cooling means, and optional feedback sensors. The integrated control electronics include digit... | 11/14/2006 |
| 7117988 | Positive displacement sorter A positive displacement sorter includes a plurality of interconnected slats defining an endless web, an upper run of the web defining a conveying surface conveying articles in a longitudinal direction. A plurality of pusher shoes move along the slats to laterally di... | 10/10/2006 |
| 7099083 | Polymeric optical film An optical film includes a layer of simultaneous biaxially stretched polyolefin film that is substantially non-absorbing and non-scattering for at least one polarization state of visible light. The layer has x, y, and z orthogonal indices of refraction where at leas... | 08/29/2006 |
| 7086519 | Positive displacement shoe and slat sorter apparatus and method A positive displacement sorter apparatus and method includes providing a plurality of slats being interconnected in an endless web, an upper run of the web defining a conveying surface, and a plurality of pusher shoes gliding along at least some of the slats to late... | 08/08/2006 |
| 7037461 | Method of stretching film A method of stretching films in which all or a portion of the width of the film is cooled during or just after stretching so as to improve the uniformity of the film. The includes stretching a polymeric film in a tenter that grasps the film with a plurality of clips... | 05/02/2006 |
| 7026731 | Linear motor glide assembly The present invention provides a linear motor and glide assembly for mounting a linear motor employing a unitary bearing rail structure and further providing heat compensation and compensation for thermal expansion, with further compensation provided to substantiall... | 04/11/2006 |
| 7024257 | System for motion control, method of using the system for motion control, and computer-readable instructions for use with the system for motion control A motion control system and method that includes a central controller configured to generate first and second demand control signals to be used to define actuation motion of respective first and second actuators. The central controller is in communication with first... | 04/04/2006 |
| 7018117 | Identification card printer ribbon cartridge A ribbon cartridge includes a cartridge housing, a supply spool, a take-up spool, and a supply of ribbon. The cartridge housing includes a supply spool enclosure, a take-up spool enclosure, a pair of ribbon guides, and a gap between the ribbon guides and the supply ... | 03/28/2006 |
| 7005822 | Torque ripple reduction for a voltage mode motor controller A system and method for reducing torque ripple in a motor controller includes a step (60) of measuring an output voltage at each phase of the motor controller. A next step (61) includes determining a voltage mismatch between the phases. A next step ( | 02/28/2006 |
| 6975081 | Path module for a linear motor, modular linear motor system and method to control same A path module for a linear motor system includes a controller coupled to one or more amplifiers that are operative to control associated windings in the module. The controller receives control information via a communications link. The controller controls the amplif... | 12/13/2005 |
| 6965474 | Polymeric optical film An optical film includes a layer of simultaneous biaxially stretched polyolefin film that is substantially non-absorbing and non-scattering for at least one polarization state of visible light. The layer has x, y, and z orthogonal indices of refraction where at leas... | 11/15/2005 |
| 6956350 | Resonant scanning mirror driver circuit A resonant scanning mirror driver configured to drive a micro-electro-mechanical system (MEMS) mirror to a desired deflection utilizes a PWM pattern selected from patterns having 32, 40, 48, 56 or 64 bits. The patterns reflect the first positive and negative quarter... | 10/18/2005 |
| 6945524 | Card singularization gate A card singularization gate for use in an identification card printer includes a roller support, a guide roller, and a card stop. The roller support is positioned between a card feeder and the card transport mechanism. The guide roller is supported by the roller sup... | 09/20/2005 |
| 6943523 | Brushless motor control system For self-switching control of a brushless motor (10) powered by means of a predetermined electrical cycle in order to cause the rotor to advance, the control system comprises an indicator device (100) for indicating the mechanical position of the rotor... | 09/13/2005 |
| 6943508 | Tubular linear synchronous motor control for elevator doors An apparatus for effecting non-contact linear door displacement comprising a tubular motor formed of a stator (1) formed from a plurality of magnets (21) arranged along a linear axis (15), and at least one thrust block (3) each formed of ... | 09/13/2005 |
| 6932527 | Card cartridge A card cartridge includes a housing having a pair of opposing side walls, a top, a front wall, a back wall opposite the front wall, and a base. The housing includes an interior cavity that is sized to accommodate a stack of cards, a card access, and a card output sl... | 08/23/2005 |
