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| Number | Title | Issue Date |
| 8069689 | Process and device for producing fire-polished gobs A levitation process for producing fire-polished gobs is provided. The process includes feeding a glass slug into a levitation mold and reducing a through-flow of the fluid between the glass slug and the levitation mold. The levitation mold includes a membrane of a ... | 12/06/2011 |
| 7743628 | Method and device for non-contact moulding of fused glass gobs The invention relates to a method and device for non-contact molding of fused glass or glass ceramic gobs by means of gas levitation, comprising the following method steps: a pre-form is generated, the pre-form is brought close to a molding tool, which may be connec... | 06/29/2010 |
| 7726154 | Method for producing single microlenses or an array of microlenses Disclosed is a method for producing single microlenses or an arrays of microlenses composed of a glass-type material, in which method a first substrate is provided with a surface containing impressions over which a second substrate composed of a glass-type material ... | 06/01/2010 |
| 7412849 | Device for blank pressing optical glass bodies The device for blank pressing glass bodies includes a first rotary indexing table with preforms for forming parisons from glass gobs; a second rotary indexing table having pressing molds and pressing tools for pressing the parisons into final form after formation in... | 08/19/2008 |
| 7377130 | Method for making globular bodies The method of making globular or spherical bodies of optical quality includes filling receptacles (2) in a heat-resistant support (3) made of a porous material with glass gobs (1); conducting gas through the heat-resistant support so that a gas ... | 05/27/2008 |
| 7354536 | Method of manufacturing an optical component having a holder A method of manufacturing an optical component having an optical element and a holder attached to the optical element, comprising the steps of: inserting a blank for the optical element into a through hole of the holder wherein the through hole has a narrowed portio... | 04/08/2008 |
| 7260959 | Glass handling system and method for using same A glass handling system and method are described herein where an enhanced robot is used to engage and hold a glass sheet in a manner that minimizes the motion of the glass sheet as it is moved from one point to another point in a glass manufacturing facility. The en... | 08/28/2007 |
| 7222710 | Conveyance apparatus, conveyance system, and conveyance method A load conveyance device composed of: a load supporting device having a through hole passing in a gravity direction, and a fluid supplying device to supply a fluid into the through hole, | 05/29/2007 |
| 7174745 | Apparatus for press-forming molten bodies An apparatus for press-forming a molten gob made of meltable material, especially of glass or glass ceramics, into a body of specific shape with compression moulds which form with each other a form cavity for receiving the gob. The compression moulds consist at leas... | 02/13/2007 |
| 7143609 | Low-temperature fabrication of glass optical components A method is provided for molding from glass certain complex optical components, such as lenses, microlens, arrays of microlenses, and gratings or surface-relief diffusers having fine or hyperfine microstructures suitable for optical or electro-optical applications. ... | 12/05/2006 |
| 7140205 | Method of manufacturing glass optical elements Disclosed is a method of manufacturing ultraprecise lenses, including aspherical lenses, not requiring grinding or polishing after press molding. The method comprises heating a glass material to a temperature corresponding to a glass viscosity of from 105 | 11/28/2006 |
| 7127917 | Method of manufacturing molded glass objects, method of manufacturing press molded articles, and method of manufacturing glass optical elements Disclosed is a method for manufacturing a molded glass object. In the method, glass melt is made to flow from the front end portion of a nozzle; a prescribed weight of the glass melt flowing out is received by a glass melt receiving portion provided on a forming mol... | 10/31/2006 |
| 7121119 | Press molding apparatus for an optical element and method of manufacturing the optical element A transfer arm holds a plurality of preforms arranged in a single line and simultaneously drops and supplies the preforms downward. A positioning arm has a pair of arm split members split in its widthwise direction. The arm split members have positioning surfaces fo... | 10/17/2006 |
| 7093464 | Device for supporting a horizontal guided glass strand The invention concerns a device for supporting a horizontal guided, continuous glass strand; with a number of supporting blocks, which each exhibits a supporting area, facing the glass strand; the individual suppor... | 08/22/2006 |
| 7024889 | Method and apparatus for bending glass sheets For bending a glass sheet so that the glass sheet has a compound curvature, an apparatus comprises a furnace including hearth beds on a bed support and a quenching unit provided with upper and lower air blowers. The final hearth bed may have a top surface with a sim... | 04/11/2006 |
| 7007511 | Device for supporting a ribbon of glass A device for supporting a ribbon of glass, having at least one roller arranged in an area of an underside of the ribbon of glass. In order to keep a ribbon of glass as free as possible of mechanical damage during production, at least one support device is assigned t... | 03/07/2006 |
| 7000429 | Roller table for carrying and transporting a hot glass band A roller table for supporting and transporting a hot glass strand. A plurality of rollers arranged parallel to each other and perpendicular to the transport direction of the glass strand are capable of being selectively rotated in the direction of transport of the g... | 02/21/2006 |
| 6973806 | Method of manufacturing a glass gob In a method of manufacturing a glass gob, a down-flowing molten glass is received on a molding die. The molding die is moved down at a speed higher than a down-flowing speed of the molten glass so as to cut the molten glass. The molten glass is remained with a prede... | 12/13/2005 |
| 6912093 | Optical glass, press-molding glass gob and optical element An optical glass whose refractive index is high and whose coloring is decreased comprising, by weight %, 2 to 45% of B2O3, 0 to 30% of SiO2 provided that the content of B2O3>the content of SiO2, 10 to... | 06/28/2005 |
| 6907755 | Device for manufacturing glass gobs A device for manufacturing glass gobs includes a membrane body of a porous gas transmitting material. Channels for introducing compressed gas into the membrane body extend through the membrane body material and are spaced at a distance from the gas outlet surface of... | 06/21/2005 |
| 6886815 | Porous wall for forming a levitation gas film A porous wall through which a flow of gas is established forming a layer supporting a liquid mass is strengthened partly to stiffen it and partly to control the shape of the lower surface of the supported liquid. Chambers containing different pressures can be formed... | 05/03/2005 |
| 6851280 | Method of making a halogen lamp and other analogous lamps and objects, and apparatus for the manufacture thereof The present invention generally relates to a method of making halogen lamps and halogen lamp bulbs, as well as other analogous lamps and objects. The present invention also relates to apparatus used in a method of making halogen lamps and halogen lamp bulbs, as well... | 02/08/2005 |
| 6829909 | Method for heating glass semi-finished products above the adhesion temperature The invention relates to a method for heating up and shaping a preform consisting of glass or glass ceramic. According to the invention, a preform, formed using conventional methods, is heated to a temperature that is below the adhesion temperature of the gas, i.e. ... | 12/14/2004 |
| 6810686 | Process for manufacturing glass optical elements Disclosed are processes for manufacturing glass optical elements by press molding a heated and softened glass material in preheated molds. In the process, the glass material is heated while it is floated by a gas blow and the heated and softened glass material is tr... | 11/02/2004 |
| 6799437 | Method for the hot shaping of molten gobs The invention relates to a method for the hot shaping of molten gobs on a mold base by interposing a gas bed, comprising the following method steps. According to the invention such a method comprises the following method steps: a mold base made of open... | 10/05/2004 |
| 6626010 | Method for floating glass lump, method for preparing glass lump and method for preparing molded glass, and apparatus used for the methods A method of floating glass gobs by means of a gas flow. A method of manufacturing glass gobs by floating a molten glass gob and simultaneously cooling it. A method of manufacturing glass spheres by floating a softened glass gob and simultaneously renderin... | 09/30/2003 |
| 6588231 | Method molding a glass composition into an optical element with reduced pull-out A mold has a moling surface of a material containing silicon carbide and/or silicon nitride as a main component and a carbon thin film formed on the molding surface to prevent fusion sticking. A glass substance which has a sag point not higher than 565° ... | 07/08/2003 |
| 6564584 | Process for manufacturing glass optical elements Processes for manufacturing glass optical elements by press molding a heated and softened glass material in preheated molds. In the process, the glass material is heated while it is floated by a gas blow and the heated and softened glass material is trans... | 05/20/2003 |
| 6505483 | Glass transportation system A pressure pad array is used to float glass sheets from a glass heating furnace to a ring mold in a press bending station. The pressure pads have transversely spaced, longitudinally-extending slotted nozzles angled towards one another to provide a static ... | 01/14/2003 |
| 6494061 | Apparatus and method for conveying gobs of glass to a glass container forming machine An inclined trough assembly (10) for conveying, by gravity, formable gobs of glass at an elevated temperature to a section of a glass container forming machine of the I.S. type, the trough assembly having a trough member (12) configured, in cross-section,... | 12/17/2002 |
| 6425269 | Method for glass sheet forming A method for forming glass sheets is performed by a system (10) that includes a furnace (12) having a heating chamber (14) in which a topside transfer device (20) has a downwardly facing surface (22) to which vacuum and pressurized air are supplied to rec... | 07/30/2002 |
| 6422040 | Method for forming glass sheets A method for forming glass sheets is performed by a system (10) that includes a furnace (12) having a heating chamber (14) in which a vacuum platen (20) has a downwardly facing surface (22) to which a vacuum is supplied to support a heated glass sheet rec... | 07/23/2002 |
| 6370915 | Method for supplying glass molding material to molds, and method for manufacturing glass optical elements A method for supplying a glass molding material by dropping it from a higher level onto a molding surface of a lower mold of a mold constituted of an upper mold and the lower mold, in which a guide means is used for dropping the glass molding material and... | 04/16/2002 |
| 6318125 | Method and device for bending glass sheets A process for shaping glass sheets with a surface-shaping mould, against which the glass sheets are pressed using a pressure drop produced by sucking out the air from the space lying between the moulding face and that face of the glass sheet on the opposi... | 11/20/2001 |
| 6311523 | Process for forming a glass sheet A process for forming a glass sheet, which is a process for continuously forming a glass sheet, and which comprises a step of introducing a vapor film-forming agent, which is not vapor at least around room temperature and which is vapor at a temperature above ... | 11/06/2001 |
| 6295842 | Uniform distribution quenching of formed glass sheets A glass sheet quench unit (22) and method for quenching formed glass sheets by quench gas jets (40) that define a uniformly repeating gas jet impingement pattern (44) that is an equilateral triangular pattern providing uniformly repeating quench cells (46... | 10/02/2001 |
| 6286338 | Block assembly for a gas-type lehr A block assembly for a lehr includes a plurality of blocks extending longitudinally, each of the blocks having a seal surface for mating and overlapping with an adjacent one of the blocks.... | 09/11/2001 |
| 6230520 | Process for preparation of glass optical elements A method disclosed can mold glass optical elements having a good surface precision with a relatively short cycle time even where glass optical elements are manufactured in largely transforming a glass material. This method is, for example, a molding metho... | 05/15/2001 |
| 6205817 | Method of pressing two mold portions together and controlling an internal gas pressure so as to create a hollow cone for receiving excess molding material A method of manufacturing a hollow cone having an open side and a cone tip. The method utilizing the steps of introducing a viscous material in a first mold portion, introducing a second mold portion and contacting the viscous material therewith, providin... | 03/27/2001 |
| 6101845 | Process for forming a glass sheet A process for forming a glass sheet, which is a process for continuously forming a glass sheet, and which comprises a step of introducing a vapor film-forming agent, which is not vapor at least around room temperature and which is vapor at a temperature a... | 08/15/2000 |
