Workpiece Position Control Patents (Class 219/121.31)
  • Patent number: 10272523
    Abstract: To increase cycle time, and therefore to lower production costs, in the industrial production of welded sheet metal parts—in particular tailored blanks for the automotive industry—the invention describes a method based on a constant-speed conveying system and a flying optics system, which method manages without complex cooling of the hot weld seam and uses means for holding the workpieces on one side with a high force on the conveyor belt. In this way it is possible greatly to reduce the negative influence the blank spacing has on the cycle time of the machine. Overall, fewer drives are required in the machine and it is possible for a simplified machine concept to be employed without detriment to the quality of the blanks to be welded.
    Type: Grant
    Filed: August 27, 2013
    Date of Patent: April 30, 2019
    Assignee: Andritz Soutec AG
    Inventors: Daniel Stäubli, Jean-Frédéric Clerc, Andri Janett
  • Patent number: 9662702
    Abstract: A hemming system of panels for a vehicle hems panels of various types of vehicles by loading, hemming, and unloading of the panels of vehicles using twin turn tables 100 connected to each other by a carrier. As such, the hemming system improves productivity, reduces working time by automatically repeating loading, hemming, and unloading of panels and transporting of molds using platform trucks, and increases the commercial values of products by improving the quality of hemming panels.
    Type: Grant
    Filed: February 3, 2014
    Date of Patent: May 30, 2017
    Assignee: Hyundai Motor Company
    Inventors: In Ho Jeong, In Kwon Lee, Jae Ill Lee, Kwang Hee Lee, Sang Jin Choi, Ock Do Kim, Jeong Ho Choi, Se Kyu Kang, Byeong Ho Choi, Seon Woo Kweon, In Hyup Im
  • Patent number: 9539673
    Abstract: A method is provided in which two parts (2, 3) are connected to each other by a weld. The two parts (2, 3) are fixed by a magnet (4) during welding. A magnetic field of the magnet (4) influences the flow of a melt in the weld (6).
    Type: Grant
    Filed: March 7, 2013
    Date of Patent: January 10, 2017
    Assignee: Johnson Controls GmbH
    Inventors: Andreas Dannheisig, Johannes Kraus, Michael Hamers, Jörgen Von Bodenhausen, Bernd Gross
  • Patent number: 9171695
    Abstract: In order to provide a stage apparatus with high speed stability in addition to being able to achieve positioning with a high degree of accuracy, and a sample observation apparatus, such as an optical microscope and a scanning electron microscope, including the stage apparatus, the stage apparatus and the sample observation apparatus of the present invention correct a command voltage value of standard waveform data or an output timing of a command voltage value such that a difference between a first time history response and a second time history response is reduced to zero, the first time history response for displacement or speed when the stage mechanism is driven with use of the standard waveform data showing the command voltage value at each predetermined time and the second time history response for displacement or speed when a speed of the stage mechanism is constant, to be set as drive waveform data to be outputted to a drive unit of the stage mechanism.
    Type: Grant
    Filed: April 12, 2013
    Date of Patent: October 27, 2015
    Assignee: Hitachi High-Technologies Corporation
    Inventors: Yasuyuki Momoi, Shigeru Haneda, Naoki Sakamoto, Masashi Shibahara, Akito Tanokuchi
  • Patent number: 9000325
    Abstract: A phenomenon where a depicted pattern becomes unclear owing to a rotational runout of a roller mold in the direction of a rotary shaft is suppressed while restraining an increase in the cost.
    Type: Grant
    Filed: June 8, 2011
    Date of Patent: April 7, 2015
    Assignee: Asahi Kasei Kabushiki Kaisha
    Inventors: Naoto Ito, Toshio Kitada, Hidenari Kiguchiya
  • Patent number: 8933368
    Abstract: A modified region is accurately formed at a desirable position with respect to a laser light irradiation surface of an object to be processed. When an average difference ? has a value exceeding a predetermined threshold during trace recording, a particle segment Z including a line segment S where the average difference ? exceeds the predetermined threshold is defined. This determines that a particle exists on a line to cut 5 and randomly reflects measuring laser light, whereby a segment where the presence of the particle affects a control signal in a line segment to cut is detected as the particle segment Z. Correcting the control signal in the particle segment Z inhibits a converging lens from moving more than necessary because of an error included in the signal value under the influence of the presence of the particle, thus allowing the converging point of the processing laser light to accurately follow a front face 3.
    Type: Grant
    Filed: September 25, 2007
    Date of Patent: January 13, 2015
    Assignee: Hamamatsu Photonics K.K.
    Inventors: Kazuhiro Atsumi, Koji Kuno, Tatsuya Suzuki
  • Patent number: 8563891
    Abstract: A welding assembly including a current generator, an electrode electrically coupled to the current generator, the electrode including a first engagement surface, and a workpiece including at least two members, wherein at least one of the members includes a second engagement surface, defines a recess in the second engagement surface, and is electrically coupled to the current generator.
    Type: Grant
    Filed: January 11, 2013
    Date of Patent: October 22, 2013
    Assignee: Innovative Weld Solutions Ltd.
    Inventor: Venkatasubramanian Ananthanarayanan
  • Patent number: 8357871
    Abstract: A welding assembly including a current generator, an electrode electrically coupled to the current generator, the electrode including a first engagement surface, and a workpiece including at least two members, wherein at least one of the members includes a second engagement surface, defines a recess in the second engagement surface, and is electrically coupled to the current generator.
    Type: Grant
    Filed: June 22, 2010
    Date of Patent: January 22, 2013
    Assignee: Innovative Weld Solutions Ltd.
    Inventor: Venkatasubramanian Ananthanarayanan
  • Patent number: 7372059
    Abstract: Various mechanisms are provided relating to plasma-based light source that may be used for lithography as well as other applications. For example, a device is disclosed for producing extreme ultraviolet (EUV) light based on a sheared plasma flow. The device can produce a plasma pinch that can last several orders of magnitude longer than what is typically sustained in a Z-pinch, thus enabling the device to provide more power output than what has been hitherto predicted in theory or attained in practice. Such power output may be used in a lithography system for manufacturing integrated circuits, enabling the use of EUV wavelengths on the order of about 13.5 nm. Lastly, the process of manufacturing such a plasma pinch is discussed, where the process includes providing a sheared flow of plasma in order to stabilize it for long periods of time.
    Type: Grant
    Filed: October 17, 2005
    Date of Patent: May 13, 2008
    Assignee: The University of Washington
    Inventors: Uri Shumlak, Raymond Golingo, Brian A. Nelson
  • Patent number: 6906280
    Abstract: A fast pulsed nonthermal plasma reactor includes a discharge cell and a charging assembly electrically connected thereto. The charging assembly provides plural high voltage pulses to the discharge cell. Each pulse has a rise time between one and ten nanoseconds and a duration of three to twenty nanoseconds. The pulses create nonthermal plasma discharge within the discharge cell. Accordingly, the nonthermal plasma discharge can be used to remove pollutants from gases or break the gases into smaller molecules so that they can be more efficiently combusted.
    Type: Grant
    Filed: March 21, 2003
    Date of Patent: June 14, 2005
    Assignee: The Regents of the University of California
    Inventor: Louis A. Rosocha
  • Patent number: 6894298
    Abstract: The invention is directed to a method and an arrangement for generating extreme ultraviolet (EUV) radiation, i.e., radiation of high-energy photons in the wavelength range from 11 to 14 nm, based on a gas discharge. The object of the invention, to find a novel possibility for generating EUV radiation in which an extended life of the system is achieved with stable generation of a dense, hot plasma column, is met according to the invention in that a preionization discharge is ignited between two parallel disk-shaped flat electrodes prior to the main discharge by a surface discharge along the superficies surface of a cylindrical insulator with a plasma column generated through the gas discharge with pulsed direct voltage, which preionization discharge carries out an ionization of the working gas in the discharge chamber by means of fast charged particles.
    Type: Grant
    Filed: October 9, 2002
    Date of Patent: May 17, 2005
    Assignee: Xtreme technologies GmbH
    Inventors: Imtiaz Ahmad, Guido Schriever, Juergen Kleinschmidt
  • Publication number: 20040256364
    Abstract: A workpiece supply device for an electron beam processing device is provided that can reduce the cycle times for changing a workpiece using a multi-functional workpiece holding device.
    Type: Application
    Filed: March 23, 2004
    Publication date: December 23, 2004
    Inventor: Ingo Kloss
  • Publication number: 20040182832
    Abstract: A fast pulsed nonthermal plasma reactor includes a discharge cell and a charging assembly electrically connected thereto. The charging assembly provides plural high voltage pulses to the discharge cell. Each pulse has a rise time between one and ten nanoseconds and a duration of three to twenty nanoseconds. The pulses create nonthermal plasma discharge within the discharge cell. Accordingly, the nonthermal plasma discharge can be used to remove pollutants from gases or break the gases into smaller molecules so that they can be more efficiently combusted.
    Type: Application
    Filed: March 21, 2003
    Publication date: September 23, 2004
    Applicant: THE REGENTS OF THE UNIVERSITY OF CALIFORNIA
    Inventor: Louis A. Rosocha
  • Patent number: 6761851
    Abstract: The present invention provides an apparatus for hardening a metal article, comprising a holding device, an energy beam generator pointed at the holding device for directing energy beams at the holding device, and a movement system supporting the holding device, wherein the movement system varies the orientation of the metal article relative to the energy beam generator. The apparatus includes an energy beam delivery instrument system positioned between the energy beam generator and the holding device so that the energy an energy beam delivery instrument directs the energy beam to the holding device. Also, the apparatus includes an auxiliary heating device engaging the holding device, wherein the auxiliary heating device heats the metal article independently from the energy beam.
    Type: Grant
    Filed: September 9, 2002
    Date of Patent: July 13, 2004
    Assignee: Allasso Industries, Inc.
    Inventor: Walter J. Chappas
  • Patent number: 6469273
    Abstract: To achieve uniform heating of metal components in all their regions, a method and device for heating metal components using electron irradiation in a vacuum chamber includes multilayer holding elements having an outer layer facing the electron radiation. The outer layer is resistant to heat and exhibits good heat-absorption properties. The holding elements also have an inner layer facing the respective metal component and exhibiting good heat-radiating properties. The holding elements are used to hold the metal components in the vacuum chamber during heating.
    Type: Grant
    Filed: March 30, 2001
    Date of Patent: October 22, 2002
    Assignee: Siemens Aktiengesellschaft
    Inventors: Peter Botzler, Carsten Deus, Ekkehart Reinhold, Hans-Jochen Student, Lutz Wolkers
  • Patent number: 6421893
    Abstract: A production line for assembling a pair of left and right car components, capable of assembling a pair of high quality car components by on line at high operating efficiency and productivity and capable of controlling jigs and molds with high dimensional accuracy. The production line of this invention related to a production line for assembling a pair of left and right front doors for supply to an assembly line of the white body of a car, is constructed by arranging various processes on one line, which comprises a work tack welding process A comprising a work input device 3 for alternately inputting the left right front door panels LDP and RDP, an incremental welding process B for welding either one of the works while transferring the other, a marriage process C, a door skin input and sealing process D, a hemming process E, a hemming delivery process F, and a front door delivery portion.
    Type: Grant
    Filed: March 20, 2000
    Date of Patent: July 23, 2002
    Assignee: Honda Giken Kogyo Kabushiki Kaisha
    Inventors: Kou Katayama, Yukimitsu Awa