Patent application number | Description | Published |
20100269542 | PROCESS AND APPARATUS FOR PRODUCING GLASS SHEET - Provided is a process for producing a glass sheet including: a forming step of down-drawing a molten glass into a sheet-like glass ribbon, in which the molten glass is fed to a forming trough arranged in a forming furnace and the molten glass is caused to flow down from the forming trough through a conveyance passage extending vertically; an annealing step of removing an internal strain in the glass ribbon in an annealing furnace; a cooling step of cooling the glass ribbon to around room temperature; and a cutting step of cutting the glass ribbon in a given size, in which a pressure in an outside atmosphere of the forming furnace and/or the annealing furnace is elevated. | 10-28-2010 |
20100281920 | PROCESS AND APPARATUS FOR PRODUCING GLASS SHEET - Provided is a process for producing a glass sheet including a forming step of down-drawing a molten glass into a sheet-like glass ribbon, in which the molten glass is fed to a forming trough arranged in a forming furnace and the molten glass is caused to flow down from the forming trough through a conveyance passage extending vertically; an annealing step of removing an internal strain in the glass ribbon in an annealing furnace; a cooling step of cooling the glass ribbon to around room temperature in a cooling chamber; and a cutting step of cutting the glass ribbon in a given size, in which the cooling chamber is provided with a gas exhausting passage, thereby exhausting air in the cooling chamber to an outside. | 11-11-2010 |
20110177347 | GLASS ROLL - Provided is a glass roll utilizing a flanged roll core, and reliably inhibiting a glass film from breaking from an end portion in a width direction thereof as an origin of breakage. A glass roll ( | 07-21-2011 |
20110200812 | GLASS ROLL AND PROCESS FOR PRODUCING GLASS ROLL - Provided is a glass roll formed by winding a glass film into a roll, in which a minimum winding radius of the glass film is optimized. Thus, the glass film is reliably prevented from breaking due to static fatigue, and is able to be stored for long periods. A glass roll ( | 08-18-2011 |
20140319001 | GLASS ROLL WITH A SEPARABLE PROTECTIVE SHEET - A glass roll includes a glass film formed by a downdraw method. The glass film is wound into a roll using a winding roller in a state in which front and back glass surfaces of the glass film formed in the forming operation are exposed, and during the winding operation, the glass film is superposed on a separable protective sheet. The protective sheet extends beyond both sides in a width direction of the glass film. The protective sheet can further be wound on an outer peripheral surface of the glass film by winding only the protective sheet from a trailing end of the glass film in a winding direction of the glass film. | 10-30-2014 |
Patent application number | Description | Published |
20110177290 | GLASS ROLL, DEVICE FOR PRODUCING GLASS ROLL, AND PROCESS FOR PRODUCING GLASS ROLL - Provided is a package form, with which cleanness of a glass film is ensured and the glass film is prevented from breaking. The package form is effective in minimizing the number of glass film processing steps to be performed before packaging and after unpackaging. As the package form for a glass film, provided is a glass roll ( | 07-21-2011 |
20110177325 | GLASS ROLL, DEVICE FOR PRODUCING GLASS ROLL, AND PROCESS FOR PRODUCING GLASS ROLL - To provide a glass roll capable of reliably preventing a glass film from breaking from an end surface of the glass film as an origin of breakage, a glass roll ( | 07-21-2011 |
20120272688 | MANUFACTURING APPARATUS FOR A THIN GLASS SHEET - A manufacturing apparatus for a thin glass sheet includes a forming member main body configured to form the thin glass sheet by fusing together, at a lower end portion of the forming member main body, streams of molten glass, which have overflown from an overflow trough to both sides of the forming member main body, under a state in which the streams of the molten glass are caused to flow down along outer surface portions having a substantially wedge shape. The manufacturing apparatus also includes a pair of covering members fitted onto both widthwise end portions of the forming member main body, respectively, the pair of covering members forming restricting wall portions for restricting widthwise spread of the streams of the molten glass flowing down along the outer surface portions of the forming member main body. | 11-01-2012 |