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3330results about "Glass tempering apparatus" patented technology
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Strengthened glass substrate sheets and methods for fabricating glass panels from glass substrate sheets
Owner:CORNING INC
Reinforced glass, reinforced glass substrate, and method for producing the same
InactiveUS20110014475A1Increase compressive stressHigh mechanical strengthGlass forming apparatusGlass/slag layered productsMaterials science
Provided is a tempered glass, which has a compressive stress layer on a surface thereof, comprising, in terms of mol %, 40 to 80% of SiO2, 5 to 15% of Al2O3, 0 to 8% of B2O3, 0 to 10% of Li2O, 5 to 20% of Na2O, 0.5 to 20% of K2O, 0 to 10% of MgO, and 8 to 16.5% of Al2O3+MgO, wherein the glass has, in terms of a molar ratio, a (Li2O+Na2O+K2O) / Al2O3 ratio of 1.4 to 3, an Na2O / Al2O3 ratio of 1 to 3, and an MgO / Al2O3 ratio of 0 to 1, and is substantially free of As2O3, PbO, and F.
Owner:NIPPON ELECTRIC GLASS CO LTD
Solar cell using low iron high transmission glass with antimony and corresponding method
A high transmission and low iron glass is provided for use in a solar cell. The glass substrate may be patterned on at least one surface thereof. Antimony (Sb) is used in the glass to improve stability of the solar performance of the glass upon exposure to ultraviolet (UV) radiation and / or sunlight. The combination of low iron content, antimony, and / or the patterning of the glass substrate results in a substrate with high visible transmission and excellent light refracting characteristics.
Owner:GUARDIAN GLASS LLC
Methods for separating glass articles from strengthened glass substrate sheets
Methods for separating glass articles from strengthened glass substrate sheets and strengthened glass substrate sheets are provided. In one embodiment, a method includes forming at least one groove on at least one surface of the glass substrate sheet and strengthening the glass substrate sheet by a strengthening process. The groove defines the glass article and partially extends through a thickness of the glass substrate sheet. The method further includes generating an initiation defect on the groove at an initiation location to cause a through crack to self-propagate through the glass substrate sheet along the groove, thereby separating the glass article from the glass substrate sheet. In another embodiment, a strengthened glass substrate sheet includes a strengthened glass having a glass article groove and an initiation groove on a surface, the glass article groove defining a glass article.
Owner:CORNING INC
Full perimeter chemical strengthening of substrates
Owner:APPLE INC
Glass-ceramic materials, precursor glass thereof and process-for making the same
The present invention relates to: novel glass-ceramics of β-quartz and / or of β-spodumene; articles made from said novel glass-ceramics; and ithium alumino-silicate glasses, which are precursors of said novel glass-ceramics; methods of preparing said novel glass-ceramics and articles made from said novel glass-ceramics. The present invention relates to the use of SnO2 and of Br, as an agent for fining the glass-ceramic glass precursor.
Owner:EUROKERA SOC & NOM COLLECTIF
Enhanced Strengthening of Glass
ActiveUS20110067447A1Improve glass strengthImprove the level ofGlass drawing apparatusGlass transportation apparatusChemical treatmentGlass cover
Apparatus, systems and methods for improving strength of a thin glass member for an electronic device are disclosed. In one embodiment, the glass member can have improved strength by using multi-bath chemical processing. The multi-bath chemical processing allows greater levels of strengthening to be achieved for glass member. In one embodiment, the glass member can pertain to a glass cover for a housing of an electronic device.
Owner:APPLE INC
Glass-ceramic materials, precursor glass thereof and process for making the same
The invention relates to: a method of preparing glass-ceramics of β-quartz and / or of β-spodumene; a method of preparing articles made from said glass-ceramics; novel glass-ceramics of β-quartz and / or of β-spodumene; articles made from said novel glass-ceramics; and lithium aluminosilicate glasses, which are precursors of such novel glass-ceramics. The present invention relates to the use, as agent for fining the glass-ceramic glass precursor, of fluorine and at least one oxide of a multivalent element.
Owner:EUROKERA SOC & NOM COLLECTIF
Strengthened glass containers resistant to delamination and damage
ActiveUS20140151370A1Pharmaceutical containersLarge containersUltimate tensile strengthMaterials science
The glass containers described herein are resistant to delamination, have improved strength, and increased damage resistance. In one embodiment, a glass container may include a body having an inner surface, an outer surface and a wall thickness extending between the outer surface and the inner surface. At least the inner surface of the body may have a delamination factor less than or equal to 10. The body may also have a compressively stressed layer extending from the outer surface of the body into the wall thickness. The compressively stressed layer may have a surface compressive stress greater than or equal to 150 MPa. A lubricous coating may be positioned around at least a portion of the outer surface of the body, such that the outer surface of the body with the lubricous coating has a coefficient of friction less than or equal to 0.7.
Owner:CORNING INC
Photovoltaic device using low iron high transmission glass with antimony and reduced alkali content and corresponding method
A high transmission low iron glass includes antimony, has reduced total alkali content, and increased silica content, and is suitable for use in photovoltaic devices (e.g., solar cells) or the like. A method of making the glass is also provided. In certain example embodiments, the glass composition may be made on a pattern line with a highly positive batch redox.
Owner:GUARDIAN GLASS LLC
Non-contact porous air bearing and glass flattening device
Thin substrates, such as flat glass panels, are levitated on a porous media air bearing creating a pressurized film of air and preloaded against the air film by negative pressure areas. The pressure can be distributed most uniformly across the pressure areas by defusing the pressure through a porous medium. Such a bearing can be used for glass flattening by holding the glass such that the unevenness is migrated to the side opposite the side to be worked on.
Owner:NEW WAY MACHINE COMPONENTS
Methods for forming grooves and separating strengthened glass substrate sheets
Methods for separating strengthened glass articles from glass substrate sheets and strengthened glass substrate sheets are described herein. In one embodiment, a method of separating a glass article from a glass substrate sheet includes forming at least one groove on at least one surface of the glass substrate sheet. The at least one groove continuously extends around a perimeter of the glass article and extends partially through a thickness of the glass substrate sheet. The method further includes strengthening the glass substrate sheet by a strengthening process and separating the glass article from the glass substrate sheet along the at least one groove such that one or more edges of the glass article are under compressive stress. In another embodiment, a strengthened glass substrate sheet includes an ion exchanged glass having one or more grooves in one or more strengthened surface layers, the one or more grooves defining glass articles.
Owner:CORNING INC
Overflow downdraw glass forming method and apparatus
ActiveUS20060016219A1Process can be modifiedMinimizing thickness variationGlass furnace apparatusVolume/mass flow measurementThermal creepEngineering
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 thermal creep is corrected, thus minimizing the effect of the thermal creep on the thickness variation of the glass sheet. The present invention also embodies design features that change the process from a single step (combined flow distribution and cooling) to a two step process; step one being flow distribution and step two being cooling.
Owner:CORNING INC
Method to fabricate hollow microneedle arrays
InactiveUS7132054B1Easy process developmentEquipment is cheapPaper/cardboard articlesDecorative surface effectsMetalMaterials science
An inexpensive and rapid method for fabricating arrays of hollow microneedles uses a photoetchable glass. Furthermore, the glass hollow microneedle array can be used to form a negative mold for replicating microneedles in biocompatible polymers or metals. These microneedle arrays can be used to extract fluids from plants or animals. Glucose transport through these hollow microneedles arrays has been found to be orders of magnitude more rapid than natural diffusion.
Owner:NAT TECH & ENG SOLUTIONS OF SANDIA LLC
Method of separating strengthened glass
A method of cutting a glass sheet that has been thermally or chemically strengthened along a predetermined line, axis, or direction with high speed and with minimum damage on the cut edges. The strengthened glass sheet may be cut into at least two pieces, one of which having a predetermined shape or dimension. At least one damage line is formed within the strengthened glass sheet. The at least one damage line is formed outside the strengthened compressive stress surface layers and within the tensile stress layer of the strengthened glass sheet. The at least one damage line may be formed by laser treatment. A crack is initiated in the strengthened glass sheet and propagated along the at least one damage line to separate the strengthened glass sheet along the predetermined line, axis, or direction into at least two pieces.
Owner:CORNING INC
Housing Case, Method for Manufacturing Housing Case, and Glass Insert Molding Die Used in Same
ActiveUS20100014232A1Limit scopeDigital data processing detailsCasings with display/control unitsEngineeringGlass sheet
A housing case for a small electric device and communication device includes a flat plate having a dimension substantially the same as that of the front portion of the housing case and comprising at least a glass plate, and a resin frame integrated with the flat plate to support the backside periphery of the flat plate.
Owner:NISSHA PRINTING COMPANY
Cleaving method for a glass film, manufacturing method for a glass roll, and cleaving apparatus for a glass film
ActiveUS20120017642A1Efficient cuttingGlass drawing apparatusGlass transportation apparatusMaterials scienceGlass film
In a cleaving apparatus (1) for a glass film, an initial crack (10), which is formed at a leading end portion of a preset cleaving line (7) of a glass film (G), is propagated along the preset cleaving line (7) by a thermal stress generated in the glass film (G) through localized heating performed along the preset cleaving line (7) and cooling of a heated region resulting from the localized heating. At this time, a resin sheet (R) having higher flexibility than the glass film (G) is arranged in a cleaving region, and the resin sheet (R) is floated by blowing a gas on a lower surface of the resin sheet (R) by a floating unit (3). Then, a preset cleaving portion of the glass film (G) including the preset cleaving line (7) is lifted and supported while being covered with the floated resin sheet (R) from below, and in this state, the glass film (G) is cleaved.
Owner:NIPPON ELECTRIC GLASS CO LTD
Method and apparatus for drawing a low liquidus viscosity glass
InactiveUS20070130994A1Easy to understandGlass furnace apparatusGlass drawing apparatusViscosityGlass sheet
A method of a drawing a glass ribbon from molten glass sheet via a downdraw process by creating a temperature drop across a thickness of the molten glass flowing over forming surfaces of a forming wedge. The forming wedge includes an electrically conductive material for heating the glass above the root.
Owner:CORNING INC
Oxygen-fired front end for glass forming operation
A front end for a glass forming operation comprises an open channel and at least one burner. The channel has at least one surface. The surface has at least one hole therein. The burner is oriented in the hole at an acute angle relative to the surface. In another embodiment of the invention, the channel has a top and a pair of sidewalls each having a surface. At least one hole is in at least one of the surfaces. The hole is at an acute angle relative to at least one surface. The burner is an oxygen-fired burner. In yet another embodiment of the invention, the top and sidewalls each have a super structure surface constructed of refractory material. The channel has an upstream end and a downstream end. At least one of the surfaces has a plurality of holes therein. The burners extend at an acute angle relative to at least one surface and in a plane extending between the upstream end and the downstream end and perpendicular to at least one surface. Oxygen-fired burners extend axially through corresponding holes.
Owner:OCV INTELLECTUAL CAPITAL LLC
Method and device for parting glass substrate, liquid crystal panel, and liquid crystal panel manufacturing device
InactiveUS20050056127A1High mechanical strengthPrevent peelingLiquid crystal compositionsBox making operationsLiquid-crystal displayCutting glass
A method for cutting apart a glass substrate is provided whereby scribing of the glass substrate is possible without being affected by the presence or thickness of a deposited film formed thereon and without scratching the deposited film. To treat a glass substrate (1) having a deposited film (1a), such as a thin film or resin film, formed on one surface thereof, there are provided a shaving means (202), which is a blade that removes strip-shaped portions of the deposited film (1a) to expose strip-shaped regions on the glass substrate (1), and a wheel cutter (14a) that forms scribed lines along the strip-shaped regions exposed on the glass substrate (1). The glass substrate (1) is cut apart along the scribed lines.
Owner:SHARP KK +1
Method for producing UV polarizers
The invention relates to a method for producing UV polarizers, according to which spheroid particles situated near the surface of the glass are incorporated into the support material (primarily standard float glass) in a novel arrangement. According to the method for producing UV polarizers, after the introduction of metal ions (e.g., silver ions) into the glass surface, a large size distribution of particles is achieved by multiple alternation of a heat treatment for separating out spherical metal particles, followed by the renewed introduction of metal ions and a subsequent heat treatment. A deformation of the glass produces spheroid particles of various sizes and different semi-axis relationships. The particles are characterized by their large size distribution and are deformed differently in relation to their spheroid shape. In this way UV polarizers are produced which have a wide absorption range since the absorption bands having different maximum positions overlap.
Owner:F O B GES ZUR FERTIGUNG FARBIGER OPTOELEKTRONISCHER BAUELEMENTE
Alkali-free glasses containing iron and tin as fining agents
ActiveUS7534734B2Glass drawing apparatusGlass forming apparatusActive-matrix liquid-crystal displayAlkali free
Owner:CORNING INC
Glass substrate, chemically strengthened glass substrate and cover glass, and method for manufactruing the same
InactiveUS20120052275A1Etching speed is fastIncrease productionGlass drawing apparatusGlass forming apparatusCover glassChemistry
Provided is a cover glass having a down-drawable composition including, in mass percent: 50%-70% SiO2, 5%-20% Al2O3, 6%-20% Na2O, 0%-10% K2O, 0%-10% MgO, above 2%-20% CaO, and 0%-4.8% ZrO2 wherein, (i) 46.5%≦(SiO2−½Al2O3)≦59%, (ii) 0.3<CaO / RO, where RO represents a total mass percent of one or more compounds selected from the group consisting of MgO, CaO, SrO and BaO included in the glass substrate, (iii) SrO+BaO<10%, (iv) 0≦(ZrO2+TiO2) / SiO2)<0.07, and (v) 0≦B2O3 / R12O<0.1, where R12O represents a total mass percent of one or more compounds selected from the group consisting of Li2O, Na2O and K2O included in the glass substrate.
Owner:HOYA CORP +1
Method and system for forming shaped glass articles
ActiveUS20140234581A1Forming accuratelyLayered productsDigital data processing detailsPoiseGlass sheet
A method of forming a shaped glass article includes placing a glass sheet on a mold such that a first glass area of the glass sheet corresponds to a first mold surface area of the mold and a second glass area of the glass sheet corresponds to a second mold surface area of the mold. The first glass area and the second glass area are heated such that the viscosity of the second glass area is 8 poise or more lower than the viscosity of the first glass area. A force is applied to the glass sheet to conform the glass sheet to the mold surface. During the heating of the second glass area, the first mold surface area is locally cooled to induce a thermal gradient on the mold.
Owner:CORNING INC
Optical glass for precision press molding, preform for precision press molding, and process for the production thereof
A high-refractivity high-dispersion optical glass for producing an optical element, which requires no machining, such as polishing or lapping, of an optical-function surface after precision press molding, containing B2O3, SiO2, La2O3, Gd2O3, ZnO, Li2O, ZrO2 and Ta2O5 as essential components, containing 0 to 1 mol % of Sb2O3 as an optional component, substantially containing none of PbO and Lu2O3, having a glass transition temperature of 630° C. or lower, and (1) having a refractive index nd and an Abbe's number nud which satisfy all of the following relational expressions, 1.80<nd<=1.90, 35<nud<=50, and nd>=2.025-(0.005xnud) or (2) having an nd of greater than 1.85 and a nud of greater than 35.
Owner:HOYA CORP
Method for producing tempered glass with plurality of surface stress layers and tempered glass product
The invention discloses a method for producing tempered glass with a plurality of surface stress layers and a tempered glass product and particularly relates to a method for producing tempered lithium glass with a plurality of surface stress layers. The method comprises that a mixed salt bath is used for conducting ion exchange in a step, or various mixed salt baths are used for conducting several ion exchange in a plurality of steps. By the aid of the novel chemical tempered lithium aluminosilicate glass and the treatment method of relative glass products, glass with the plurality of surface stress layers and products of the glass are obtained, and the product serves as a high-strength cover plate in electronic devices, household appliances and vehicles. Compared with the prior art, the tempered glass with the plurality of surface stress layers can protect electronic devices, household appliances and vehicles reliably.
Owner:SCHOTT GLASS TECH (SUZHOU) CO LTD
Beta-spodumene glass-ceramic materials and process for making the same
InactiveUS7476633B2Increase brightnessReduce the temperatureGlass tempering apparatusSolid solutionGlass-ceramic
Owner:EUROKERA SOC & NOM COLLECTIF
Silicon Casting Apparatus and Method of Producing Silicon Ingot
InactiveUS20070227189A1Good reproducibilityLow costFinal product manufactureGlass drawing apparatusIngotTemperature gradient
A silicon casting apparatus for producing polycrystal silicon ingot by heating a silicon melt (8) held in a mold (4) from above by a heater (3) and cooling it from below while changing the heat exchange area of a heat exchange region (HE), defined between a pedestal (5) having the mold (4) placed thereon and a bottom cooling member (6), in such a manner as to keep pace with the rise of the solid-liquid interface of the silicon melt (8), thereby causing unidirectional solidification upward along the mold (4); and a method of producing polycrystal silicon ingot using such apparatus. According to this production method, the temperature gradient given to the silicon melt (8) can be maintained at constant by adjusting the heat exchange area, so that polycrystal silicon ingot having good characteristics can be produced with good reproducibility.
Owner:KYOCERA CORP
Solar cell using low iron high transmission glass with antimony and corresponding method
Owner:GUARDIAN GLASS LLC
Thin lithium-aluminosilicate glass for three dimensional precision molding
ActiveUS20130189486A1Easily D shapedLower TgSynthetic resin layered productsRecord information storageThermodynamicsSilicate glass
A thin lithium-aluminosilicate glass is provided. The glass is suitable for three dimensional precision molding and suitable for toughening, wherein after toughening, the glass has a center tension smaller than 50 Mpa, a surface compressive stress of 600-1200 Mpa, and a bending strength of up to 500 MPa. The glass also has a transition point lower than 550° C.
Owner:SCHOTT GLASS TECH (SUZHOU) CO LTD
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