Speed Control Patents (Class 65/163)
  • Patent number: 10131566
    Abstract: Methods for modifying multi-mode optical fiber manufacturing processes are disclosed. In one embodiment, a method for modifying a process for manufacturing multi-mode optical fiber includes measuring at least one characteristic of a multi-mode optical fiber. The at least one characteristic is a modal bandwidth or a differential mode delay at one or more wavelengths. The method further includes determining a measured peak wavelength of the multi-mode optical fiber based on the measured characteristic, determining a difference between the target peak wavelength and the measured peak wavelength, and modifying the process for manufacturing multi-mode optical fiber based on the difference between the target peak wavelength and the measured peak wavelength.
    Type: Grant
    Filed: April 16, 2014
    Date of Patent: November 20, 2018
    Assignee: Corning Incorporated
    Inventors: Jennifersue A. Bowker, Xin Chen, Jason Edward Hurley, Elios Klemo, Igor Rafaelyevich Mejouev, Daniel Aloysius Nolan, Dale Robert Powers
  • Patent number: 10068455
    Abstract: A network-enabled machine press data monitoring and analysis system is provided herein. The system can include a sensor, a base station, and a server. The sensor may be designed such that the sensor can be placed on any type of machine press to track machine press operation. The sensor is coupled to a machine press and detects machine press cycles. The base station is coupled to the sensor and receives signals from the sensor indicating the detection of machine press cycles. The base station tracks machine press cycles and forwards such information to the server along with time values indicating when the machine press has started and stopped operating. The server can process information received from the base station and generate user interface data that, when rendered by a user device, causes the user device to display the processed information in a graphical user interface.
    Type: Grant
    Filed: April 13, 2017
    Date of Patent: September 4, 2018
    Assignee: Steven Label Corporation
    Inventors: Ryan Stong, Steve Stong
  • Publication number: 20150099618
    Abstract: Embodiments of a method of forming a glass article are disclosed. The methods include supplying a glass ribbon in a first direction and redirecting the glass ribbon to a second direction different from the first direction without contacting the glass ribbon with a solid material. The glass ribbon may exhibit a viscosity of less than about 108 Poise and a thickness of about 1 mm or less. Embodiments of a glass or glass-ceramic forming apparatus are also disclosed. The apparatus may include a glass feed device for supplying a glass ribbon in a first direction and a redirection system disposed underneath the glass feed device for redirecting the glass ribbon to a second direction. In one or more embodiments, the redirection system comprising at least one gas bearing system for supplying a gas film to support the glass ribbon.
    Type: Application
    Filed: October 3, 2014
    Publication date: April 9, 2015
    Inventors: Antoine Gaston Denis Bisson, Allan Mark Fredholm, Vincent Guillard
  • Publication number: 20150096329
    Abstract: A method for cutting a glass article from a strengthened glass substrate having a surface compression layer and a tensile layer includes forming an edge defect in the surface compression layer on a first edge of the strengthened glass substrate. The method further includes propagating a through vent through the surface compression and tensile layers at the edge defect. The through vent precedes a region of separation along a cut line between the glass article and the strengthened glass substrate.
    Type: Application
    Filed: December 11, 2014
    Publication date: April 9, 2015
    Applicant: Corning Incorporated
    Inventors: Xinghua Li, Lisa Anne Moore
  • Publication number: 20140165652
    Abstract: The invention relates to a method for cutting a strengthened glass sheet in which, when a strengthened glass sheet 10 including a front surface layer 13 and a rear surface layer 15 which have a residual compressive stress, and an intermediate layer 17 which has an inside residual tensile stress, is cut by moving an irradiation region 22 of a laser beam so as to have a predetermined curvature radius, an irradiation energy per unit irradiation area of a laser beam 20 to be irradiated on the strengthened glass sheet 10 is increased as a curvature radius decreases. Thereby, it is possible to cut a strengthened glass sheet using a laser beam without causing a deterioration of quality.
    Type: Application
    Filed: February 25, 2014
    Publication date: June 19, 2014
    Applicant: Asahi Glass Company, Limited
    Inventor: Isao SAITO
  • Patent number: 8721789
    Abstract: An apparatus for crystallization of silicon includes a crucible for containing silicon, a heating and heat dissipating arrangement provided for melting the silicon contained in the crucible and for subsequently solidifying the molten silicon, and an electromagnetic stirring device provided for stirring the molten silicon in the crucible during the solidification of the molten silicon. A control arrangement is provided for controlling the heating and heat dissipating arrangement to solidify the molten silicon at a specified solidification rate and for controlling the electromagnetic stirring device to stir the molten silicon in response to the specified solidification rate of the molten silicon such that the ratio of a speed of the molten silicon and the specified solidification rate is above a first threshold value.
    Type: Grant
    Filed: March 15, 2012
    Date of Patent: May 13, 2014
    Assignee: ABB AB
    Inventors: Jan-Erik Eriksson, Olof Hjortstam, Ulf Sand
  • Publication number: 20140041413
    Abstract: The invention relates to a method and apparatus for shaping an elongated glass body 81, which is a glass tube or glass rod and has an initial profile, to an elongated glass body having a different profile. In order to be properly shaped, an elongated glass body 81 passes through, in a hot malleable state, a nip, which is formed by squeezing rollers 1 and which has a nip width which is less than an outer dimension of the initial profile. In order to accomplish an enhanced precision of the shaping process, according to the invention the position of at least one of the squeezing rollers is varied continuously so that a contact area between the respective squeezing roller and the hot glass body is varied cyclic reciprocating movement. Disturbing effects such as local overheating of the squeezing rollers or an accumulation of dirt or glass particles on the surface of the squeezing rollers can thus be effectively prevented.
    Type: Application
    Filed: August 8, 2013
    Publication date: February 13, 2014
    Applicant: SCHOTT AG
    Inventors: Reiner BARTSCH, Ralf BIERSACK, Wolfgang PULZ, Csaba DEBRECZENY
  • Publication number: 20140013804
    Abstract: To provide a process for producing a glass member provided with a sealing material layer, capable of forming a sealing material layer well even in a case where the entire glass substrate cannot be heated. A sealing material layer is formed by scanning and irradiating with a laser light 9 along a frame-form coating layer 8 of a sealing material paste on a glass substrate. The scanning speed with the laser light 9 in a finishing region from a position close to an irradiation finishing position which at least partially overlaps with an already fired portion of the frame-form coating layer 8 to the irradiation finishing position, is adjusted to be slower than the scanning speed with the laser light in a scanning region along the frame-form coating layer 8.
    Type: Application
    Filed: July 8, 2013
    Publication date: January 16, 2014
    Applicant: ASAHI GLASS COMPANY, LIMITED
    Inventors: Motoshi ONO, Sohei Kawanami
  • Publication number: 20140013802
    Abstract: The invention relates to a device and a method for trimming a float glass strip that has a normal or structured surface, comprising the following features: a) a cutting slide having a lower running rail and a cutting slide having an upper running rail for a bottom cut for a structured surface or a top cut for a normal surface, wherein both running rails are arranged at an acute angle to the running direction of the glass strip and this angled position can be adjusted; b) a number of counter pressure rollers for the lower cutting slide; c) a hold-down apparatus (6) having a breaking roller (20) and a front hold-down roller (21) for a bottom cut; d) a hold-down apparatus (15) having a breaking roller (14) and a rear hold-down roller (18) for a top cut; e) apparatuses (10, 11, 12) for measuring the advance speed of the glass strip (11) and the current length of the glass strip.
    Type: Application
    Filed: April 2, 2012
    Publication date: January 16, 2014
    Applicant: GRENZEBACH MASCHINENBAU GMBH
    Inventor: Wolfgang Niewiera
  • Publication number: 20130255315
    Abstract: Disclosed is an electromagnetic casting method of polycrystalline silicon which is characterized in that polycrystalline silicon is continuously cast by charging silicon raw materials into a bottomless cold mold, melting the silicon raw materials using electromagnetic induction heating, and pulling down the molten silicon to solidify it, wherein the depth of solid-liquid interface before the start of the final solidification process is decreased by reducing a pull down rate of ingot in a final phase of steady-state casting. By adopting the method, the region of precipitation of foreign substances in the finally solidified portion of ingot can be reduced and cracking generation can be prevented upon production of a polycrystalline silicon as a substrate material for a solar cell.
    Type: Application
    Filed: March 18, 2013
    Publication date: October 3, 2013
    Inventors: Koichi Maegawa, Tomohiro Onizuka, Mitsuo Yoshihara
  • Publication number: 20130219964
    Abstract: A glass manufacturing apparatus includes a control device configured to modify a predetermined diameter of at least one of a first downstream pair of draw rolls in a first downstream equation based on a monitored actual velocity of a first edge portion of a glass ribbon such that a predetermined ribbon velocity of the first edge portion of the glass ribbon in the first downstream equation changes to substantially match the monitored actual velocity without substantially changing a first downstream angular velocity of the at least one of the first downstream pair of draw rolls. In further examples, methods of manufacturing a glass ribbon include the step modifying the predetermined diameter of at least one of a first downstream pair of draw rolls in the first downstream equation based on the monitored actual velocity of the first edge portion of the glass ribbon.
    Type: Application
    Filed: February 26, 2013
    Publication date: August 29, 2013
    Inventor: Gautam Narendra Kudva
  • Publication number: 20130061634
    Abstract: A dwell time control system and method for automatically adjusting the selection and timing of a sequence of pressures used to drive the plunger in a parison mold during the parison forming process. The timing of characteristics of the observed press curve from one or more previous parison forming cycles are ascertained and used to control the timing of the changes in pressure during a subsequent parison forming cycle. The timings of these changes of pressure are determined as predetermined percentages of the timings of the characteristics in order to prevent the blow mold from being forced open and in order to prevent the occurrence of an overpressed finish.
    Type: Application
    Filed: September 14, 2011
    Publication date: March 14, 2013
    Inventors: Andreas Helfenstein, Hartmut Geisel, Christian Fröba
  • Publication number: 20120304695
    Abstract: A process and apparatus for precision glass roll forming a supply of molten glass at a glass temperature of 1000° C. or higher. A pair of hot forming rolls having a surface temperature of about 500° C. or higher, vertically below the glass feed, that thin the supplied stream of molten glass to produce a formed glass ribbon. A pair of cold sizing rolls maintained at a surface temperature of about 400° C. or lower, vertically below the forming rolls, that thin the formed glass ribbon glass to produce a sized glass ribbon having a desired thickness and a desired thickness uniformity. The sized glass ribbon may have a thickness of 1 mm or less that varies in thickness by no more than +/?0.025 mm.
    Type: Application
    Filed: May 30, 2012
    Publication date: December 6, 2012
    Inventors: Alexander Lakota, William E. Lock, Joel A. Schultes, John C. Thomas
  • Publication number: 20120204601
    Abstract: A method of manufacturing a glass blank for a substrate for an information recording medium, the method including steps of: cutting out a gob of a glass material from a molten glass material by cutting the molten glass material discharged from a glass material outlet at a predetermined timing; causing the gob of the glass material to fall downwardly; pinching and pressing the gob of the glass material by a press unit having a pair of molds, the molds' surfaces facing to each other being press surfaces which are planes without an unevenness, so as to contact the falling gob of the glass material only to the press surfaces; and forming a circular flat plate-shaped glass blank having a target flatness as a glass substrate for a magnetic disk such that a ratio between a diameter and a thickness of the glass blank is within a range of from 50:1 to 150:1, from the gob of the glass material.
    Type: Application
    Filed: February 1, 2012
    Publication date: August 16, 2012
    Inventor: Akira MURAKAMI
  • Publication number: 20120167629
    Abstract: An apparatus for crystallization of silicon includes a crucible for containing silicon, a heating and heat dissipating arrangement provided for melting the silicon contained in the crucible and for subsequently solidifying the molten silicon, and an electromagnetic stirring device provided for stirring the molten silicon in the crucible during the solidification of the molten silicon. A control arrangement is provided for controlling the heating and heat dissipating arrangement to solidify the molten silicon at a specified solidification rate and for controlling the electromagnetic stirring device to stir the molten silicon in response to the specified solidification rate of the molten silicon such that the ratio of a speed of the molten silicon and the specified solidification rate is above a first threshold value.
    Type: Application
    Filed: March 15, 2012
    Publication date: July 5, 2012
    Inventors: Jan-Erik Eriksson, Olof Hjortstam, Ulf Sand
  • Publication number: 20120094079
    Abstract: The invention relates to a method and to a device for ceramizing green glass in a continuous furnace, with the ceramization being carried out directly on rollers.
    Type: Application
    Filed: March 20, 2010
    Publication date: April 19, 2012
    Inventors: Falk Gabel, Thoralf Johansson, Uwe Martens, Christian Roos, Friedrich Georg Schroder
  • Patent number: 7578144
    Abstract: A method of a stirring a molten glass which includes an analytical model which may be used to optimize the stirring conditions to minimize refractory metal inclusions which may result from the stirring operation.
    Type: Grant
    Filed: July 13, 2006
    Date of Patent: August 25, 2009
    Assignee: Corning Incorporated
    Inventors: Richard Bergman, May Yanmei Xun
  • Publication number: 20090199595
    Abstract: A device for gravity bending of at least one glass sheet supported by at least one support forming part of a bending assembly, plural supports supporting the sheet during bending. The device includes a drive system for changing the shape of the support, the drive system controlling the rate of the change. A method of bending glass sheets utilizes the device.
    Type: Application
    Filed: December 4, 2006
    Publication date: August 13, 2009
    Applicant: SAINT-GOBAIN GLASS FRANCE
    Inventors: Christophe Machura, Serge Chiappetta
  • Publication number: 20090199594
    Abstract: A method and apparatus for controlling the process used in the heat treatment of glass measures the quality of the glass following the heat treatment process. Inputs to the control system for the heat treatment process derive from the automated inspection of glass following heat treatment. Outputs from the control system for the heat treatment process may adjust one or more parameters in the heat treatment process including a furnace or heating setting, a transport setting, and a quench or cooling setting.
    Type: Application
    Filed: February 9, 2009
    Publication date: August 13, 2009
    Applicant: LITESENTRY CORPORATION
    Inventors: Mark Abbott, Eric Hegstrom
  • Patent number: 7489983
    Abstract: A control for a glass forming machine is disclosed which receives as an input the event angles used to control the machines operation. These event angles, which define the time in a cycle when each event is turned on and off, are unwrapped to represent times in the glass forming process which takes more than two machine cycles to complete. A computerized model of the unwrapped cycle is defined and a control analyzes the computerized model as a constrained optimization problem to define an optimized schedule of event times and defines a plurality of intermediate event time schedules in an incremental application.
    Type: Grant
    Filed: August 12, 2005
    Date of Patent: February 10, 2009
    Assignee: Emhart Glass S.A.
    Inventor: Jonathan S. Simon
  • Patent number: 7430880
    Abstract: A pull roll assembly is described herein that is used to draw a glass sheet. The pull roll assembly includes a first roll assembly, a second roll assembly and a device (e.g., differential drive, sensor(s)). The device enables one to control the first and/or second roll assemblies based in part on pulling forces (e.g., glass contact normal force and/or required sheet pulling force) associated with a glass sheet while the glass sheet is being drawn between the first and second roll assemblies. A glass manufacturing system and method for using the pull roll assembly are also described herein.
    Type: Grant
    Filed: June 2, 2004
    Date of Patent: October 7, 2008
    Assignee: Corning Incorporated
    Inventors: Dennis I. Butts, Glen B. Cook, John J. Costello, III, Hilary T. Godard, John D. Helfinstine, Randy L. Rhoads, G. Clinton Shay
  • Publication number: 20080184741
    Abstract: The method of making thin glass panes includes conveying a glass melt through a vertical inlet to a drawing tank with a slit nozzle; drawing a glass ribbon downward from the slit nozzle; setting a total throughput by setting length and cross section of the inlet and by heating and cooling the inlet to control glass melt viscosity so that pressure in the inlet decreases; and setting a throughput per unit of length in a lateral direction along the glass ribbon via nozzle system geometry and by heating and cooling of the drawing tank and slit nozzle to control melt viscosity, so that glass does not wet an underside of the slit nozzle near a breaking edge. The setting of the total throughput and the throughput per unit length are largely decoupled to simplify process control. An inventive apparatus for performing the method is also disclosed.
    Type: Application
    Filed: October 4, 2007
    Publication date: August 7, 2008
    Inventors: Rudolf Mueller, Horst Loch, Dirk Sprenger, Jose Zimmer, Holger Wegener
  • Patent number: 7342376
    Abstract: A machine for operating on a glass bottle. A carriage is displaceable by a servo motor having three lead lines. The rotation of the servo motor is stopped when power has been removed by shorting regenerative resistors to the three motor leads. The stopped servo motor is held at its stopped position by connecting a direct current power supply to two of the three servo motors.
    Type: Grant
    Filed: February 24, 2006
    Date of Patent: March 11, 2008
    Assignee: Emhart Glass SA
    Inventor: Henry F. Raupp
  • Patent number: 7290406
    Abstract: An I.S. Machine is disclosed which includes a structure displaceable from a start location to an end location and a motor for displacing that structure. A control controls the operation of the motor to displace the structure and the speed of displacement can be varied by changing inputs to the control. A fixed period of time from a datum to the ideal time when the structure will be displaced to its end location is set and compared with an actual period and a selected input to the control is provided for changing the speed of the structure to reduce the difference.
    Type: Grant
    Filed: October 1, 2004
    Date of Patent: November 6, 2007
    Assignee: Emhart Glass SA
    Inventor: Wolfgang Anheyer
  • Patent number: 7059155
    Abstract: A method of bending glass, in which glass (5) is heated in a bending furnace (1). After the heating, the glass (5) is transferred onto a mold (7). The glass-bending mold (7) is at at least one point arranged to be bent substantially in its entirety when the mold (7) is transferred from the position it had during the initial heating of the glass (5) into a position where the glass (5) is arranged upon the mold (7).
    Type: Grant
    Filed: April 23, 2002
    Date of Patent: June 13, 2006
    Assignee: Uniglass Engineering OY
    Inventors: Jukka Vehmas, Juha Paavola, Antti-Jussi Numminen
  • Patent number: 7017373
    Abstract: A glassware forming machine system includes a glassware forming machine having first operating mechanisms for converting gobs of molten glass into articles of glassware, a gob delivery system having second operating mechanisms for delivering gobs of molten glass to the glassware forming machine, a ware handling system having third operating mechanisms for receiving and conveying articles of glassware from the glassware forming machine, and an electronic control system for controlling and coordinating operation of the first, second and third operating mechanisms. The electronic control system includes a machine controller coupled to the first operating mechanisms of the glassware forming machine for controlling and coordinating operation of the first operating mechanisms to produce articles of glassware.
    Type: Grant
    Filed: September 3, 2002
    Date of Patent: March 28, 2006
    Assignee: Owens-Brockway Glass Container Inc.
    Inventors: David J. Bauer, Thomas G. Green, D. Wayne Leidy, Matthew D. Redd, Jay E. Werner, Michael R. Wildgen
  • Patent number: 6857292
    Abstract: A takeout grips a formed bottle at a blow station of an I.S. machine and releases the bottle onto a conveyor and returns to grip the second bottle formed in the blow station following the bottle removed by the takeout.
    Type: Grant
    Filed: December 5, 2001
    Date of Patent: February 22, 2005
    Assignee: Emhart Glass S.A.
    Inventor: F. Alan Fenton
  • Patent number: 6854292
    Abstract: A takeout mechanism for an I.S. machine grips a formed bottle at the blow station and carries the bottle to a first position spaced above a deadplate. The bottle is held at this position for a period of time and then is lowered to a position proximate the deadplate whereupon it is released.
    Type: Grant
    Filed: December 5, 2001
    Date of Patent: February 15, 2005
    Assignee: Emhart Glass S.A.
    Inventor: Steven J. Pinkerton
  • Patent number: 6776008
    Abstract: A method and apparatus for heating glass, in which glass (4) is heated upon rollers (3) in a tempering furnace (1) from above and below of the glass (4). At least the upper surface of the glass (4) is heated with hot air jets directed substantially perpendicularly relative to the surface of the glass (4). The air jets have been provided by sucking air mainly from the inside of the furnace and by pressurizing the air taken from the inside of the tempering furnace (1) to an overpressure of over 0.1 bar relative to the pressure in the tempering furnace (1).
    Type: Grant
    Filed: November 6, 2000
    Date of Patent: August 17, 2004
    Assignee: Uniglass Engineering Oy
    Inventors: Jukka Vehmas, Jorma Valkama
  • Publication number: 20040118162
    Abstract: Apparatus for indexing glassware through a series of angularly spaced stations includes first and second arrays of glassware gripping fingers mounted on associated carriers that are rotatable about a common axis, both conjointly and with respect to each other. Each carrier is connected to as associated servo motor, which in turn are connected to a controller for rotating the carriers with respect to each other to grip and release glassware between the fingers, and to rotate the carriers conjointly to index the glassware between apparatus stations. One array of glassware gripping fingers includes coil springs for biasing the fingers toward the fingers of the opposing array for accommodating tolerance variations in the glassware. Drive rollers are located at at least some of the stations, and are pivotal into and out of positions for rotating the containers about their axes for inspection or other purposes.
    Type: Application
    Filed: December 11, 2003
    Publication date: June 24, 2004
    Inventors: George A. Nickey, Stephen M. Gerber, Noel D. Wendt, Ronald E. Gast, Gregory A. Ritz, James Scott Barnes, William R. Martin
  • Patent number: 6722158
    Abstract: A machine cycle unwrapper for use with a glass forming machine which is controlled by a programmable sequencer which defines a 360° machine cycle having a set cycle time. The cycle unwrapper converts the “on” and “off” angles around the wrapped 360° programmable sequencer to “on” and “off” times along an unwrapped bottle forming process which takes more then two machine cycles to complete.
    Type: Grant
    Filed: April 10, 2001
    Date of Patent: April 20, 2004
    Assignee: Emhart Glass S.A.
    Inventor: Jonathan S. Simon
  • Patent number: 6711916
    Abstract: A glass forming machine has a set machine cycle time. Each of the mechanisms, etc., is cycled during the time of one machine cycle. A computerized model of a mathematical representation of a network constraint diagram of the unwrapped bottle forming process which takes more than two machine cycles to complete is defined to facilitate the analysis and control of the machine cycle.
    Type: Grant
    Filed: April 10, 2001
    Date of Patent: March 30, 2004
    Assignee: Emhart Glass S.A.
    Inventor: Jonathan S. Simon
  • Patent number: 6705119
    Abstract: A control for defining data for setting the times for controlled events in a glass forming machine which is controlled by a programmable sequencer which defines the time of a machine cycle. A computerized model of a mathematical representation of a network constraint diagram of the unwrapped bottle forming process is provided with computer analysis for analyzing the computerized model as a constrained optimization problem for determining, with inputs including the following: 1. the motion durations of each of the mechanisms from the retracted position to the advanced position and from the advanced position to the retracted position, 2. the submotion durations, 3. the machine cycle time, and 4. the time in an unwrapped bottle forming process for each displacement to begin and for each valve to be turned “on” and “off”, and 5. the target time for an optimized machine cycle, the machine cycle time and the event times for an optimized process.
    Type: Grant
    Filed: April 10, 2001
    Date of Patent: March 16, 2004
    Assignee: Emhart Glass S.A.
    Inventor: Jonathan S. Simon
  • Patent number: 6705120
    Abstract: A control for defining data for setting the times for controlled events in a glass forming machine which is controlled by a programmable sequencer which defines the time of a machine cycle. The control includes a computerized model of a mathematical representation of a network constraint diagram of the unwrapped bottle forming process and a computer for analyzing the computerized model as a constrained optimization problem for determining, with the following data inputs: 1. the motion durations, 2. the submotion durations, 3. the machine cycle time, 4. the event time in an unwrapped bottle forming process for each displacement to begin and for each valve to be turned “on” and “off”, and 5. thermal forming process duration “N”. define the fastest machine cycle time for a feasible schedule and the event time in the unwrapped bottle forming process for each displacement to begin and for each valve to be turned “on” and “off”.
    Type: Grant
    Filed: April 10, 2001
    Date of Patent: March 16, 2004
    Assignee: Emhart Glass S.A.
    Inventor: Jonathan S. Simon
  • Publication number: 20040007020
    Abstract: There are the steps of conveying a glass plate by a roller conveyor including a plurality of rollers; and moving a roller in contact with the glass plate in conveyance to position the glass plate so as to conform a posture of the glass plate to a reference posture.
    Type: Application
    Filed: June 23, 2003
    Publication date: January 15, 2004
    Applicant: ASAHI GLASS COMPANY, LIMITED
    Inventors: Ryou Kanno, Toshimitsu Sato, Takashi Hirotsu, Tomohiro Suwa, Isao Saito
  • Patent number: 6606886
    Abstract: A control for defining optimized data for setting the times for controlled events in a glass forming machine which is controlled by a programmable sequencer which defines the time of a machine cycle. The control includes a computerized model of a mathematical representation of a network constraint diagram of the unwrapped bottle forming process which takes more than two machine cycles to complete and a computer for analyzing the computerized model as a constrained optimization problem for determining, with the following data inputs: 1. the motion durations, 2. the submotion durations, 3, the machine cycle time, 4. the time in an unwrapped schedule for each event, and 5. the duration of each thermal forming process, whether an optimized process can be defined, and for identifying any active constraint that is restricting further improvement.
    Type: Grant
    Filed: April 10, 2001
    Date of Patent: August 19, 2003
    Assignee: Emhart Glass, S.A.
    Inventor: Jonathan S. Simon
  • Patent number: 6604384
    Abstract: A control for use with a glass forming machine which is controlled by a programmable sequencer which defines a machine cycle having a set time. A computerized model of a mathematical representation of a network constraint diagram of the unwrapped bottle forming process which takes more than two machine cycles to complete is provided for determining, with the following inputs: 1. the time in an unwrapped bottle forming process for each displacement to begin; 2. the machine cycle time; and 3. the motion durations of each of the mechanisms, the duration of each of the thermal forming processes.
    Type: Grant
    Filed: April 10, 2001
    Date of Patent: August 12, 2003
    Assignee: Emhart Glass, S.A.
    Inventor: Jonathan S. Simon
  • Patent number: 6604386
    Abstract: A control for defining data for setting the times for controlled events in a glass forming machine which is controlled by a programmable sequencer which defines the time of a machine cycle. The control includes a computerized model of a mathematical representation of a network constraint diagram of the unwrapped bottle forming process which takes more than two machine cycles to complete and a computer for analyzing the computerized model as a constrained optimization problem for determining, with the following data inputs: 1. the motion durations, 2. the submotion durations, 3, the machine cycle time, 4. the event time for each displacement to begin and for each valve to be turned “on” and “off”, and 5. the thermal forming process durations, whether there is a feasible optimized schedule and the machine cycle time and the event time for each displacement to begin and for each valve to be turned “on” and “off”.
    Type: Grant
    Filed: April 10, 2001
    Date of Patent: August 12, 2003
    Assignee: Emhart Glass, S.A.
    Inventor: Jonathan S. Simon
  • Patent number: 6604383
    Abstract: A control for use with a glass forming machine which is controlled by a programmable sequencer which defines a machine cycle having a set cycle time. A computerized model of a mathematical representation of a network constraint diagram of the unwrapped bottle forming process is provided for determining whether, with the following inputs: the time in an unwrapped bottle forming process for each displacement to occur; the machine cycle time; the motion durations of each of the mechanisms from the retracted position to the advanced position and from the advanced position to the retracted position and the collision zones between interfering paths, a collision will result between the gob, the parison, the bottle or any mechanism.
    Type: Grant
    Filed: April 10, 2001
    Date of Patent: August 12, 2003
    Assignee: Emhart Glass, S.A.
    Inventor: Jonathan S. Simon
  • Patent number: 6604385
    Abstract: A control for a glass forming machine. Each machine mechanism, etc., is turned “on” and “off” at selected angles around a wrapped 360° machine cycle. The control unwraps the “on” and “off” angles around the wrapped 360° machine cycle to “on” and “off” times along an unwrapped bottle forming process which takes more than two machine cycles to complete and the unwrapped schedule is analyzed to determine whether an optimized schedule is possible and once a schedule is optimized, the analysis is done again with all the optimized values locked except one or more of the motion durations which are targeted at their maximum duration. This second optimization defines the motion durations at their longest possible setting so that the associated motor(s) can be concomitantly slowed down to minimize wear.
    Type: Grant
    Filed: April 10, 2001
    Date of Patent: August 12, 2003
    Assignee: Emhart Glass, S.A.
    Inventor: Jonathan S. Simon
  • Publication number: 20030101757
    Abstract: A takeout for an I.S. machine includes a cooling tube which is displaceable between up and down positions. Displace is controlled to correspond to the desired heat removal along the path of displacement.
    Type: Application
    Filed: December 5, 2001
    Publication date: June 5, 2003
    Inventors: Matthew R. Hyre, F. Alan Fenton
  • Publication number: 20030101756
    Abstract: A blow mold assembly for an I.S. machine for blowing a parison of glass and cooling the blown parison into a formed bottle which can be removed from the blow mold. A blow head is lowered onto a blow mold and final air is applied. A predetermined time after the blow head engages the top surface of the blow mold the blow head is lifted a selected vertical distance above the top surface of the blow mold to an exhaust position allowing cooling air to escape from the blow mold. The selected vertical distance is selected so that at least a minimum pressure will continue within the formed bottle. The blow head is maintain at the exhaust position for a predetermined time and then retracted. The selected vertical distance and the predetermined time can be set as desired.
    Type: Application
    Filed: December 5, 2001
    Publication date: June 5, 2003
    Inventors: Leo Diehm, F. Alan Fenton, Wolfgang Anheyer, Steven J. Pinkerton, John P. Mungovan
  • Publication number: 20020194874
    Abstract: A control for use with a glass forming machine which is controlled by a programmable sequencer which defines a machine cycle having a set cycle time. A computerized model of a mathematical representation of a network constraint diagram of the unwrapped bottle forming process is provided for determining whether, with the following inputs: the time in an unwrapped bottle forming process for each displacement to occur; the machine cycle time; the motion durations of each of the mechanisms from the retracted position to the advanced position and from the advanced position to the retracted position and the collision zones between interfering paths, a collision will result between the gob, the parison, the bottle or any mechanism.
    Type: Application
    Filed: April 10, 2001
    Publication date: December 26, 2002
    Inventor: Jonathan S. Simon
  • Publication number: 20020194871
    Abstract: A glass forming machine has a set machine cycle time. Each of the mechanisms, etc., is cycled during the time of one machine cycle. A computerized model of a mathematical representation of a network constraint diagram of the unwrapped bottle forming process which takes more than two machine cycles to complete is defined to facilitate the analysis and control of the machine cycle.
    Type: Application
    Filed: April 10, 2001
    Publication date: December 26, 2002
    Inventor: Jonathan S. Simon
  • Publication number: 20020194875
    Abstract: A control for use with a glass forming machine which is controlled by a programmable sequencer which defines a machine cycle having a set time.
    Type: Application
    Filed: April 10, 2001
    Publication date: December 26, 2002
    Inventor: Jonathan S. Simon
  • Publication number: 20020189292
    Abstract: A control for defining optimized data for setting the times for controlled events in a glass forming machine which is controlled by a programmable sequencer which defines the time of a machine cycle.
    Type: Application
    Filed: April 10, 2001
    Publication date: December 19, 2002
    Inventor: Jonathan S. Simon
  • Publication number: 20020189294
    Abstract: A machine cycle unwrapper for use with a glass forming machine which is controlled by a programmable sequencer which defines a 360° machine cycle having a set cycle time. The cycle unwrapper converts the “on” and “off” angles around the wrapped 360° programmable sequencer to “on” and “off” times along an unwrapped bottle forming process which takes more then two machine cycles to complete.
    Type: Application
    Filed: April 10, 2001
    Publication date: December 19, 2002
    Inventor: Jonathan S. Simon
  • Patent number: 6470711
    Abstract: A furnace particularly for heat treatments of glass sheets, comprising a longitudinally-elongated chamber which contains roller conveyor elements for the glass sheets. The furnace comprises irradiation-heating elements combined with first and second elements for heating by forced air convection in which the air temperature is controlled by adjusting its circulation rate, the elements being located respectively above and below the conveyor elements and therefore above and below the sheets being treated.
    Type: Grant
    Filed: March 8, 1999
    Date of Patent: October 29, 2002
    Inventors: Jouko Jarvinen, Guglielmo Macrelli
  • Publication number: 20020152769
    Abstract: A method of bending glass, in which glass (5) is heated in a bending furnace (1). Before the bending, the glass (5) is transferred from the heating point or zone onto a mould (7) located thereafter. While the glass (5) is being transferred onto the mould (7), the mould (7) moves in such a way that the horizontal velocity of at least the front edge of the mould (7) is substantially as high as the horizontal velocity of the glass (5).
    Type: Application
    Filed: April 23, 2002
    Publication date: October 24, 2002
    Applicant: UNIGLASS ENGINEERING OY
    Inventors: Jukka Vehmas, Juha Paavola, Antti-Jussi Numminen
  • Patent number: 6442978
    Abstract: Apparatus (700) for sintering a glass base material (2) which is a base material for an optical fiber. The sintering apparatus (700) includes: a control unit which varies a condition for sintering the glass base material; and a furnace (12) which sinters the glass base material by heating the glass base material in an atmosphere of dehydration gas and inert gas. The control unit includes a drive source (3) which supplies the glass base material to the furnace at various speeds. The control unit includes a temperature control unit which controls the temperature of a heating source provided in the furnace.
    Type: Grant
    Filed: March 8, 2000
    Date of Patent: September 3, 2002
    Assignee: Shin-Etsu Chemical Co. Ltd.
    Inventors: Takeshi Kamio, Hiroyuki Koide, Hiroshi Tsumura, Tadakatsu Shimada, Hideo Hirasawa