Glass manufacturing inventions 01/06

20060016219 - Overflow downdraw glass forming method and apparatus: The present invention significantly modifies “The Overflow Process”. It includes a method and apparatus for measuring glass flow rate and maintaining a constant glass flow rate. It also embodies design features and methods that support and stress the forming apparatus in a manner such that the deformation that results from...

20060016220 - Device and method for thermally pre-stressing elongated hollow objects: A device and a method for thermal pre-stressing lengthy hollow objects, in particular glass tubes, are disclosed. The device comprises a heating device, a fixture for receiving an object, and a coolant feed device comprising an outer coolant feed unit with a plurality of nozzles for feeding coolant against an...

20060016221 - Chromium bearing forehearth color concentrate: A forehearth color concentrate comprising a non-smelted agglomerated interspersion of particles for use in coloring, said concentrate comprising by weight from about 50% to about 95% of a glass component and from about 4% to about 50% of a binder, said glass component comprising by weight from about 15% to...

20060016222 - Device for electrically grounding a float glass production apparatus: A float glass apparatus typically includes a float tank for a metal bath, the metal bath, a glass melt producing unit, which includes a melting tank for making a glass melt and a refining, tank for degassing the glass melt, and conducting devices for conducting the glass melt from the...

20060016223 - Tin oxide material with improved electrical properties for glass melting: A tin oxide-based electrode formed from a composition comprising a major component SnO2 is disclosed. The composition includes additives including aCuO, bZnO, and cSb2O3, wherein a, b, and c represent weight percentages of respective components, and 0.2≦(a+b)/c<1.0....

20060016224 - Reaction chamber and method for preparing preforms for optical fibers: The invention concerns a reaction chamber comprising a first container (1), a second container (4) connected to a conduit (6), an outer tube (3) emerging into the container (1), an outer tube (8) emerging into the conduit. The container (1) is designed to receive a sleeve glass, and the container...

20060016225 - Process for producing an optical-fibre preform, optical-fibre preform and optical fibre associated therewith: The invention relates especially to a final optical-fibre preform comprising a primary preform (3) obtained by a VAD deposition process or an OVD deposition process, a silica sleeve tube (4) surrounding the primary preform (3), and a built-up layer (5) made of silica particles surrounding the silica sleeve tube (4)....

20060016226 - Glass-body-heating apparatus and production method of optical fiber preform incorporaing the apparatus: An apparatus can heat a glass body with high efficiency, and a method incorporating the apparatus produces an optical fiber preform. The apparatus has (a) a heating element that has a nearly cylindrical shape and that heats a glass body inserted into the heating element and (b) an infrared reflector...

20060010915 - Method of continuously producing flat glass by rolling: A method for making flat glass of good quality by rolling is described, in which a gas cushion is formed between the upper shaping roller and the glass sheet and contact between the lower shaping roller and the glass sheet is limited to a width of from 5 to 30...

20060010916 - Method and machine for obtaining asymetric convex glass sheets: Glass sheets that have been raised beforehand to their softening point are moved along, progressively giving them a desired bent shape. Between an initial bending phase in which the sheets begin to adopt their shape and a final phase of bending, continuous blowing of air is performed, at a point...

20060010917 - Glass for an illuminating means with external electrodes: A glass composition for a glass body of an illuminating device with external electrodes is provided. In the glass composition, the quotient of the loss angle and the dielectric constant amounts to tan δ/ε′<5. In this way, the total power loss of the illuminating device can be minimized in a...

20060010918 - Neck ring cooling: A system for directing cooling air onto a neck ring in a glassware molding machine that includes at least one air plenum stationarily disposed at a blank mold station and having an internal cavity for receiving cooling air flowing laterally inwardly toward the axis and at least one outlet opening...

20060010919 - Molding core: A molding core includes: a core body having an article-shaping surface; an intermediate film formed on the article-shaping surface of the core body and including a first composite layer that contains carbon, nitrogen, and at least one bonding-enhancing element which is selected from silicon, titanium, aluminum, tungsten, tantalum, chromium, zirconium,...

20060010920 - Method for forming high-density multicore phase-locked fiber laser array: A method for forming a multicore fiber laser array includes inserting a plurality of rare-earth doped rods into a corresponding plurality of hollow capillaries, and arranging the resulting plurality of filled capillaries into a preform pattern. The plurality of filled capillaries are collapsed into an initial preform structure, wherein a...

20060010921 - Optical fiber and production method thereof: An optical fiber, which has a zero-material dispersion wavelength equal to or greater than 2 μm, and a high nonlinear susceptibility χ3 equal to or greater than 1×10−12 esu, and uses tellurite glass having sufficient thermal stability for processing into a low loss fiber, employs a PCF structure or HF...

20060010922 - Method and device for vaporizing a liquid reactant in manufacturing a glass preform: A method and device for vaporizing a liquid reactant. A vaporizing plate having a top surface defines a liquid flow channel, the channel being laterally delimited by edges having a height greater than a minimum thickness of liquid reactant required to generate vapor under film or nucleate boiling regime. A...

20060005579 - Method of making a preform for an optical fiber, the preform and an optical fiber: A method of making a preform for an optical fiber includes the steps of providing at least one rod shaped unit having an outer surface of glass, subjecting the at least one rod shaped unit to a laser surface treatment by directing a laser beam onto its outer surface to...

20060005580 - Insulation product, such as a thermal insulation product, and production method thereof: The invention relates to a thermal and/or acoustic insulation product based on mineral fibers for use above 150° C., especially between 200 and 500° C., or even up to 700° C. and higher in the case of rock fibers, which comprises at least 1%, or at least 2% and even...

20060000237 - Systems and methods for glass recycling at a beneficiator and/or a material recovery facility: Embodiments of the present invention provide systems and methods for obtaining recycled mixed cullet at a beneficiator and/or a material recovery facility (MRF). The composition of the cullet, or portions thereof, can be certified for use by a party other than the beneficiator and/or the MRF. The recycled mixed cullet...

20060000238 - Capillary column for filtering, separation and concentration: The column according to the present invention provides greatly increased effective length and tortuosity, per unit length of column material, by providing a smooth or textured, tight radius helical channel or channels within a silica monolith. The capillary according to the present invention is useful in enabling fully automated massively...

20060000239 - Method and device for melting and refining materials capable of being vitrified: The subject of the invention is a process for melting and refining vitrifiable materials, such that all or part of the thermal energy necessary for melting the said vitrifiable materials is supplied by the combustion of fossil fuel(s) with at least one oxidizer gas, the said fuel(s)/gas or the gaseous...