Marvering Means With Blow Means Patents (Class 65/228)
  • Publication number: 20100107694
    Abstract: Systems, methods, apparatus and products relate to drawing and blowing of ultra thin glass substrates, such as flexible display glass sheets, for example, organic light emitting diode (OLED) displays, liquid crystal displays (LCDs), and/or other flexible substrate applications, such as lighting, and/or other technologies, such as electro-wetting (EW), electro-phoretic display applications, etc. A localized heat source centripetally heats a vertical glass pre-form, while a pressurized air source blows the heated glass to expansion. An air bearing may centripetally blow air against the expanding pre-form to limit expansion and prevent contact of the pre-form with the localized heat source. Meanwhile, the pre-form is pulled vertically to draw the heated glass. The pre-form may float in a floatation mechanism to compensate for gravity when the pre-form is pulled upward. The blown and drawn pre-form may be cooled, coated with a polymer layer, and cut into a ribbon by in-line devices as it exits the air bearing.
    Type: Application
    Filed: January 30, 2007
    Publication date: May 6, 2010
    Inventors: Thierry Luc Alain Dannoux, Claude Jacques Julien Vanotti
  • Patent number: 6761046
    Abstract: A method and apparatus for making cylindrical glass preforms with convex, optical quality convex end surfaces is taught. A glass ball preform is placed on a heated lower platen. The temperature of the glass ball preform is raised to a temperature above the glass transition temperature of the glass ball preform. The glass ball preform is engaged with an upper platen. At least one of the upper platen and the lower platen is moved vertically to cause the gap between the upper platen and the lower platen to narrow to a predetermined dimension. Simultaneously, at least one of the upper platen and the lower platen is moved horizontally relative to the other platen to cause the glass ball preform to roll between the upper platen and the lower platen and form a cylindrical preform having a predetermined diameter, the cylindrical preform having convex, optical quality end surfaces.
    Type: Grant
    Filed: June 15, 2001
    Date of Patent: July 13, 2004
    Inventors: Jayson J. Nelson, Eugene G. Hill, Michael K. Budinski, James M. Warner
  • Patent number: 6598427
    Abstract: A device for cooling bent glass sheets running along a roller conveyor. Blowing boxes are inserted between the rollers and have a surface opposite the glass sheet at a distance of less than 30 mm and preferably less than 10 mm. The surface is perforated with several holes through which air is discharged in the direction of the glass sheets.
    Type: Grant
    Filed: October 8, 1999
    Date of Patent: July 29, 2003
    Assignee: Saint-Gobain Glass France
    Inventors: Jean-Pierre Douche, Jean-Marc Petitcollin, Gilles Garnier
  • Publication number: 20030000253
    Abstract: A method and apparatus for making cylindrical glass preforms with convex, optical quality convex end surfaces is taught. A glass ball preform is placed on a heated lower platen. The temperature of the glass ball preform is raised to a temperature above the glass transition temperature of the glass ball preform. The glass ball preform is engaged with an upper platen. At least one of the upper platen and the lower platen is moved vertically to cause the gap between the upper platen and the lower platen to narrow to a predetermined dimension. Simultaneously, at least one of the upper platen and the lower platen is moved horizontally relative to the other platen to cause the glass ball preform to roll between the upper platen and the lower platen and form a cylindrical preform having a predetermined diameter, the cylindrical preform having convex, optical quality end surfaces.
    Type: Application
    Filed: June 15, 2001
    Publication date: January 2, 2003
    Applicant: Eastman Kodak Company
    Inventors: Jayson J. Nelson, Eugene G. Hill, Michael K. Budinski, James M. Warner
  • Patent number: 4619682
    Abstract: In a method for the mechanized processing of vacuum molded glass lumps, particularly of heavy glass lumps which could hitherto be further processed only with a large outlay in personnel, the preliminary blowing and the transport of the glass lump to the marver, to the heating oven and to the fashioning station, the final blow-out and the transport to the lehr are all carried out by means of a manipulator. This manipulator has a turntable mounted on a driveable undercarriage, a blowing iron arranged in a holder device, a unit for rotating the iron about its longitudinal axis, an arm for pivoting the blowing iron about an axis at right angles to its longitudinal axis, an air supply system for inflating the glass lump, a two-part marver for supporting the glass lump and operating elements for controlling the drives.
    Type: Grant
    Filed: May 21, 1985
    Date of Patent: October 28, 1986
    Assignee: Schott Glaswerke
    Inventor: Franz Gunthner