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| Number | Title | Issue Date |
| 8181486 | Methods for manufacturing performs for press molding and method for manufacturing optical elements In the method for manufacturing preforms for press molding, a glass melt gob is separated from glass melt flow flowing out of a pipe and the glass melt gob is molded into a preform for press molding on a glass gob casting mold. The method comprises a viscosity-incre... | 05/22/2012 |
| 7587913 | Globular glass manufacturing apparatus and method for manufacturing the globular glass A globular glass manufacturing apparatus includes: a flow nozzle to flow a molten glass in a form of continuous flow, a collection tank to collect droplet-like glass gobs deformed from the molten glass flowing in a form of continuous flow during fall. Further, the g... | 09/15/2009 |
| 7415842 | Optical glass element and manufacturing method thereof The present invention relates to a manufacturing method for an optical glass element, in which molten glass 9 is pressed between a lower mold 1 and an upper mold 8, and the pressing process is carried out while maintaining a space 10 betw... | 08/26/2008 |
| 7313930 | Method and apparatus for manufacturing glass substrate for storage medium A method of manufacturing a glass substrate for a storage medium by pressing a glass material between an upper and a lower dies. The method includes a heating step of heating the glass material arranged between the upper and lower dies, a pressing step of pressing t... | 01/01/2008 |
| 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 |
| 6854289 | Method of manufacturing glass gobs molded glass articles, and optical elements Methods and a device of manufacturing glass gobs with good productivity without defects in appearance from a glass melt. Glass gobs are manufactured from glass melt gobs by molding and cooling glass melt gobs in glass gob molding parts that are intermittently rotate... | 02/15/2005 |
| 6742364 | Method of manufacturing micro glass optical element A method of manufacturing a micro molten glass droplet, has the steps of, colliding a molten glass droplet with a micro through hole formed in a plate-shaped member; and pushing out at least part of the glass droplet to a reverse surface of the micro through hole as... | 06/01/2004 |
| 6652935 | Flint/amber laminated glass container and method of manufacture A laminated glass container has an inner layer of amber glass surrounded by an outer layer of flint glass. The container is manufactured by forming a cased glass stream, having an amber glass core and a flint glass casing layer, cutting the stream into in... | 11/25/2003 |
| 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 |
| 6499316 | Method of producing a glass gob, method of producing a glass molded product, and apparatus for producing a glass gob In a method of producing a glass gob by continuously dropping a molten glass 9 from a nozzle 2 in a dropping direction, a gas flow 20 is caused to continuously flow in the dropping direction along an outer peripheral surface of the nozzle 2 at a predeterm... | 12/31/2002 |
| 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 |
| 6381988 | Liquid cooling deflectors in a glassware forming system A glassware forming machine system includes an individual section glassware forming machine having a plurality of sections, each with at least one blank mold, and a gob distributor for distributing molten glass gobs to the blank molds of each machine sect... | 05/07/2002 |
| 6141991 | Press molding apparatus for glass optical elements and molding method for glass optical elements Disclosed are a molding apparatus for glass optical elements a plurality of molds each constituted of an upper mold and a lower mold, a matrix supporting the molds, and heating means wound around the matrix for heating the molds, wherein the matrix extend... | 11/07/2000 |
| 5925159 | Process for determining the weight of free-falling molten glass gobs A process for determining a weight of free-falling molten glass gobs has the steps of providing an electromagnetic alternating field, passing a glass gob through the electromagnetic alternating field in a free fall, measuring resultant eddy current losses... | 07/20/1999 |
| 5917106 | Method and apparatus for introducing glass gobs into a glass container forming machine A gob of molten glass from a gob delivery system is introduced into a blank mold of a glass container forming machine of the individual section type by way loading funnel immediately upstream of an opening into the blank mold. The loading funnel has an up... | 06/29/1999 |
| 5900033 | Apparatus and method for improved optical glass GOB preform production A gob formation device and method for improved production of molten glass preforms for use in the precision glass molding of optical glass elements. The device is a dispensing tip which is attached to a stem extending from a working crucible containing a ... | 05/04/1999 |
| 5895512 | Process for the manufacture of an object displaying a message A process for the manufacture of an object displaying a message includes the following steps: preparation of a support for the message having dimensions less than the dimensions of the object; manual or automatic application of the message to the support;... | 04/20/1999 |
| 5888267 | Channel arrangement for glass gob to a mold A gob distributor has an outlet from which issues a gob that is fed via a channel arrangement to a mold having an upwardly open inlet mouth. The channel arrangement has a central trough having an inlet adjacent and aligned with the distributor outlet and ... | 03/30/1999 |
| 5762673 | Method of manufacturing glass optical elements In a method of manufacturing glass optical elements at high operational efficiency, a mass of molten glass which is dropped down is cut at a first step by a wind blast into a sequence of glass gobs each of which is received by a gas stream spouted from a ... | 06/09/1998 |
| 5746798 | Control of glass gob delivery for simultaneous arrival at blank molds A method and apparatus are provided for controlling the delivery of multiple gobs to the blank molds of a glass forming machine having multiple cavities or sections, wherein multiple gobs are delivered from a glass feeder to plural scoops that are oscilla... | 05/05/1998 |
| 5738701 | Glass gob production device and production method A glass gob production device for producing a glass gob from molten glass. The glass gob production device has a crucible which accommodates molten glass, a nozzle one end of which is connected to the crucible and from the other end of which the molten gl... | 04/14/1998 |
| 5728188 | Glass gob distributor zeroing fixture and method of orienting a glass gob distributor A method of accurately circumferentially orienting the output shaft of each of a plurality of oscillating gob distribution device units (S) with respect to one another and with respect to a support device (T) used to support a plurality of gob chutes. A f... | 03/17/1998 |
| 5709723 | Method for producing large glass preforms A method of making gob preforms for the optical quality lens molding comprising: i) ejecting a measured gob molten glass through an exit in a stem of the container of a supply of molten glass; ii) allowing the gob to settle under gravity from the exit to ... | 01/20/1998 |
| 5656054 | Process and device for reheating glass gobs A process and a device for reheating gobs of glass by means of a reheating drum are characterized by the fact that the heat-insulating lining of the reheating drum has a low heat-penetration factor, and an energy-rich combustion-gas mixture is used. In th... | 08/12/1997 |
| 5620491 | Process and apparatus for decontaminating glass cullet The present invention relates to a process and apparatus for the processing contaminated glass cullet, or foreign cullet, into furnace-ready cullet. A furnace may also be used to melt the furnace-ready cullet into glass articles of manufacture. Foreign cu... | 04/15/1997 |
| 5340372 | Process for vitrifying asbestos containing waste, infectious waste, toxic materials and radioactive waste Material, such as, for example, sealed double bags of asbestos containing waste or ash from infectious waste or toxic material or radioactive waste, is transferred into a glass melt of a furnace. Gas bubbles released into the melt form a gas curtain which... | 08/23/1994 |
| 5322541 | Method of producing glass blank A method of producing a glass blank, comprising the steps of: supplying a desired weight of molten glass material to a bearer heated to a temperature of not more than a softening point of the glass material; performing and cancelling, at a temperature of ... | 06/21/1994 |
| 4740401 | Forming laminated glass containers from a composite encapsulated gob of molten glass A glass bottle forming system is described in which a main glass melter is connected to a forehearth with a fairly conventional feeder provided at the delivery end of the forehearth. The feeder opening in the bottom of the forehearth is closed by a first ... | 04/26/1988 |
| 4589898 | Method of cleaning heat transfer fins A method of cleaning glass volatile contaminants from the surfaces of heat transfer fins in a fin cooler of a glass fiber forming bushing assembly is disclosed. A cleaning liquid which is a dilute alcohol solution in which the alcohol is selected from the... | 05/20/1986 |
| 4457771 | Forming laminated articles from a composite encapsulated charge of molten glass A method is set forth for forming laminated articles such as by pressing, blowing, and press and blow techniques, directly from a composite gob of molten glass having an inner core of one glass and an outer skin of a second glass. A charge of molten core ... | 07/03/1984 |
| 4381932 | Laminated gob for pressing glass articles Method and apparatus is set forth for forming a laminated gob or charge of molten glass having a core glass which is not only completely surrounded by a skin glass but also has a reentrant portion of skin glass which projects inwardly within the core glas... | 05/03/1983 |
| 4283214 | Gob feed dial for dual glass base machine A method and apparatus for forming and delivering insulating glass in gob form to a lamp base making machine from a continuous stream of molten glass. A rotating dial severs the glass stream into uniform gobs and during rotation forms the gobs into a ball... | 08/11/1981 |
| 4210433 | Forming glass articles by using a spin plate A spin plate, rotatable about a central vertical axis, is positioned axially below the discharge orifice of a glass feeder to initially receive a charge of glass thereon, and the spin plate is rotated about said central axis to spin out said charge into a... | 07/01/1980 |
| 4002451 | Glass gob handling Apparatus for and a method of preforming into an elongate mold charge a gob of molten glass issuing from the outlet orifice of a forehearth and delivering such elongate charge to the forming cavity of a forming mold with the virgin or untouched surface of... | 01/11/1977 |
