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1. 发明授权

US12043561B2 Glass tube element with improved quality 有权
公开(公告)号：US12043561B2
公开(公告)日：2024-07-23
申请号：US18309784
申请日：2023-04-29
申请人： SCHOTT AG
发明人： Volker Trinks , André Witzmann
IPC分类号： C03B17/04 , C03C3/078 , C03C3/083 , C03C3/085 , C03C3/087 , C03C3/089 , C03C3/091 , C03C3/093 , C03C3/095 , C03C3/097 , C03C21/00
CPC分类号： C03B17/04 , C03C3/078 , C03C3/083 , C03C3/085 , C03C3/087 , C03C3/089 , C03C3/091 , C03C3/093 , C03C3/095 , C03C3/097 , C03C21/002
摘要： A glass tube element having a hollow cylindrical section with a shell having an outer diameter is provided. A first ratio is a difference value to a mean value. The difference value is a difference of a minimal and maximal value of the outer diameter. The mean value is a mean of the minimal and maximal values. A sub-section having a start, an end, and a distance of 1 meter measured along a straight line from the start to the end and intersecting with a center axis of the sub-section at the start and the end. The sub-section having, for every point of the center axis, a shortest distance to the straight line. A second ratio of a specific distance to 1 meter, the specific distance being defined as a largest of all shortest distances. A product of the first and second ratio is smaller than 4×10−6.

2. 发明公开

US20230365452A1 DEVICE FOR PRODUCING GLASS TUBES BY A VELLO OR DOWN-DRAW METHOD, METHOD FOR PRODUCING GLASS TUBES BY A VELLO OR DOWN-DRAW METHOD AND GLASS TUBES 审中-公开
公开(公告)号：US20230365452A1
公开(公告)日：2023-11-16
申请号：US18315673
申请日：2023-05-11
申请人： Schott AG
发明人： Stephan Tratzky , Volker Trinks , Jürgen Eckl , Thomas Männer , Thomas Zimmert
IPC分类号： C03B17/04
CPC分类号： C03B17/04
摘要： A glass tube has a center axis, where for the glass tube a specific cross-sectional plane is defined which includes the center axis and which is parallel to the center axis. Within the specific cross-sectional plane, for each pair of outer diameters d1 and d2 of the glass tube at any two arbitrarily selected first axial position x1 and second axial positions x2 along the center axis, respectively, the following relation is 60 or smaller: |(d2−d1)/(x2−x1)|*(10{circumflex over ( )}6 mm)/d1.

3. 发明授权

US11708290B2 Preparation of a quartz glass body in a multi-chamber oven 有权
公开(公告)号：US11708290B2
公开(公告)日：2023-07-25
申请号：US16984379
申请日：2020-08-04
申请人： Heraeus Quarzglas GmbH & Co. KG
发明人： Matthias Otter , Walter Lehmann , Michael Hünermann , Nils Christian Nielsen , Nigel Robert Whippey , Boris Gromann , Abdoul-Gafar Kpebane , Matthias Söhn
IPC分类号： C03B20/00 , C03B37/012 , C03C3/06 , C03B17/04 , C03B19/10 , C03C12/00 , C03C1/02 , C03B37/027
CPC分类号： C03B20/00 , C03B17/04 , C03B19/106 , C03B19/1095 , C03B37/01211 , C03B37/027 , C03C1/022 , C03C1/026 , C03C3/06 , C03C12/00 , C03B2201/04 , C03C2201/02 , C03C2201/11 , C03C2201/23 , C03C2201/26 , C03C2201/32 , C03C2201/40 , C03C2201/54 , C03C2203/10 , C03C2203/40 , C03C2203/44 , C03C2203/50
摘要： One aspect relates to a process for the preparation of a quartz glass body, including providing a silicon dioxide granulate, wherein the silicon dioxide granulate was made from pyrogenic silicon dioxide powder and the silicon dioxide granulate has a BET surface area in a range from 20 to 40 m2/g, making a glass melt out of silicon dioxide granulate in an oven and making a quartz glass body out of at least part of the glass melt. The oven has at least a first and a further chamber connected to one another via a passage. The temperature in the first chamber is lower than the temperature in the further chambers. On aspect relates to a quartz glass body which is obtainable by this process. One aspect relates to a light guide, an illuminant and a formed body, which are each obtainable by further processing of the quartz glass body.

4. 发明授权

US11702360B2 Borosilicate glass article with low boron content 有权
公开(公告)号：US11702360B2
公开(公告)日：2023-07-18
申请号：US16444723
申请日：2019-06-18
申请人： Schott AG
发明人： Malte Grimm , Christof Kass , Rainer Eichholz
IPC分类号： C03C3/091 , C03B17/04 , C03C4/20
CPC分类号： C03C3/091 , C03B17/04 , C03C4/20 , C03C2204/00
摘要： A chemically temperable borosilicate glass article has a low boron content and a corresponding Na2O content. The articles have good diffusivities and hydrolytical resistance values. When chemically tempered, the borosilicate glass article exhibits a compressive stress CS >400 MPa and a penetration depth DoL >20 μm. A pharmaceutical primary packaging including the borosilicate glass article is also disclosed.

5. 发明授权

US10059618B2 Reforming mandrel geometry for flatness control 有权
公开(公告)号：US10059618B2
公开(公告)日：2018-08-28
申请号：US15006615
申请日：2016-01-26
申请人： CORNING INCORPORATED
发明人： Thierry Luc Alain Dannoux , Mickaël Mabrut , Ronan Tanguy
IPC分类号： C03B7/084 , C03B15/14 , C03B17/04 , C03B23/04 , C03B23/07 , C03B23/045 , C03B40/04 , C03B23/047 , C03B23/09
CPC分类号： C03B23/045 , C03B17/04 , C03B23/0476 , C03B23/09 , C03B40/04 , Y02P40/57
摘要： A reforming mandrel and a method of use reforming mandrel to reform glass are described. The reforming mandrel comprises an upstream portion, a downstream portion and an at least partially hollow interior. The upstream portion may have an intake inlet for fluid flow. The downstream portion may be axially spaced from the upstream portion. The downstream portion may have a flattened cross-section defined by flattened peripheral portions joined by curved peripheral portions. At least one curved peripheral portion may be made of porous material resistant to a temperature of at least 1000° C. The at least partially hollow interior may communicate with the intake inlet and the porous material.

6. 发明授权

US09938635B2 Method for producing a component, particularly for use in a crucible pulling method for quartz glass 有权
公开(公告)号：US09938635B2
公开(公告)日：2018-04-10
申请号：US14710374
申请日：2015-05-12
申请人： Heraeus Quarzglas GmbH & Co. KG
发明人： Boris Gromann , Nigel Whippey , Christian Schenk
IPC分类号： C30B15/10 , C30B29/18 , C03B15/14 , B23K20/02 , B23K20/00 , C03B5/08 , C03B5/42 , C03B5/43 , C03B17/04
CPC分类号： C30B15/10 , B23K20/002 , B23K20/02 , C03B5/08 , C03B5/42 , C03B5/43 , C03B15/14 , C03B17/04 , C30B29/18 , Y10T117/1032
摘要： A method for producing a component includes joining individual wall parts, especially for producing a melting crucible for use at a high operating temperature in a crucible-pulling method for quartz glass, wherein at least two wall parts of a refractory metal or of a base alloy of a refractory metal are provided, butt-joined to form a joint and joined together by sintering at a temperature above 1500° C. to form the component. A sealant is inserted into the joint to provide a component of improved tightness and to ensure improved sintering of the individual parts of the component. A component produced according to the method, particularly a melting crucible, particularly in a crucible pulling method for quartz glass, has the joint between the butt-joined walls closed in a gas-tight manner by a sealant.

7. 发明授权

US09834467B2 Method and apparatus for making a profiled tubing and a sleeve 有权
公开(公告)号：US09834467B2
公开(公告)日：2017-12-05
申请号：US14422462
申请日：2013-08-29
申请人： Corning Incorporated
发明人： Antoine Gaston Denis Bisson , Patrick Joseph Cimo , Thierry Luc Alain Dannoux , Ronan Tanguy
IPC分类号： C03B23/07 , C03B40/04 , C03B17/04 , C03B23/047 , C03B23/045 , C03B33/06
CPC分类号： C03B23/07 , C03B17/04 , C03B23/045 , C03B23/0476 , C03B33/06 , C03B40/04 , Y10T428/131
摘要： An apparatus (100) for making glass tubing (200) of a desired non-circular cross-sectional profile (cf FIG. 3) includes a mandrel (101) adapted for positioning proximate heat-softened tubing. The mandrel (101) has a nose (102) and a nozzle section (120) with a chosen profile that will define a final cross-sectional profile of the tubing. The nozzle section (120) has a feed chamber (140) for receiving a gas from a source (207) and a porous and/or foraminous circumferential surface (132,134) through which the gas can be discharged to an exterior of the mandrel. The gas discharges to the exterior of the mandrel, forming a film of pressurized gas in the gap (314, 318) between the porous circumferential surface (132,134) and the heat-softened tubing (200). A method of forming tubing having a non-circular cross-sectional profile using the apparatus is also provided. A glass sleeve made from the reshaped or formed tubing is also disclosed: a monolithic sleeve made of parallel, opposite, flat and smooth front and back covers for use in an electronic device (cf FIG. 13). Some glass-ceramic materials may also be suitable for the tubing, such as transparent beta spodumene.

8. 发明授权

US09790116B2 Vertical crucible pulling method for producing a glass body having a high silicic-acid component 有权
公开(公告)号：US09790116B2
公开(公告)日：2017-10-17
申请号：US14569615
申请日：2014-12-12
申请人： Heraeus Quarzglas GmbH & Co. KG
发明人： Thomas Buckenauer , Remo Pohl , Robert Stenger , Alexander Böhler
IPC分类号： C03B3/00 , C03B5/24 , C03B17/00 , C03B5/033 , C03B17/04
CPC分类号： C03B3/00 , C03B5/0336 , C03B5/24 , C03B17/04
摘要： The present invention refers to a method for producing a glass body with high silicic-acid content by drawing a softened glass mass from an elongated, substantially cylindrical crucible in that SiO2 granules are supplied from above into the crucible, the SiO2 granules are heated to a softening temperature, so that the softened glass mass which comprises a melt surface is formed, the softened glass mass is drawn off via a bottom opening of the crucible so as to form a glass strand, and the glass strand is cut to length to obtain the glass body, wherein due to the supply of the SiO2 granules a bulk heap is formed that covers the melt surface in part while leaving a melt edge, and wherein the melt surface is optically detected. To improve the fusion behavior of the granules and to suppress or altogether prevent the formation of a sinter crust, it is suggested according to the invention that during the optical detection of the melt surface the width of at least a sub-section of the melt edge is determined consecutively and is set to a value within a target width range through the supply rate of the SiO2 granules.

9. 发明申请

US20170203991A1 THERMALLY STABLE GLASS TUBING FORMING APPARATUSES 审中-公开
公开(公告)号：US20170203991A1
公开(公告)日：2017-07-20
申请号：US15402058
申请日：2017-01-09
申请人： CORNING INCORPORATED
发明人： Adam Charles Berkey , Randy Lee Rhoads , Matthew Scott Weibel
IPC分类号： C03B17/04 , G05D23/19
CPC分类号： C03B17/04 , G05D23/19
摘要： A bell positioning apparatus for glass tubing manufacturing includes a bell and a support connected to the bell. A bell positioning apparatus is attached to the support and configured to move the support and the bell with at least three degrees of freedom. The bell positioning apparatus includes a platform, a platform frame, and one or more frame legs. A frame leg dimensional stability apparatus maintains a temperature variation within 6.5° C. per meter of distance between each frame leg for an extended period of time, e.g. 4 hours.

10. 发明授权

US09115018B2 Drawing method for producing cylindrical components from quartz glass 有权
标题翻译：从石英玻璃生产圆柱形部件的拉丝方法
公开(公告)号：US09115018B2
公开(公告)日：2015-08-25
申请号：US13814453
申请日：2011-06-29
申请人： Christian Neumann , Boris Gromann , Lothar Huefner , Heinz Bauscher
发明人： Christian Neumann , Boris Gromann , Lothar Huefner , Heinz Bauscher
IPC分类号： C03B17/04
CPC分类号： C03B17/04 , Y02P40/57
摘要： In a known drawing method for producing a cylindrical component from quartz glass, a quartz glass strand (2) is continuously drawn off from a softened quartz glass composition (13) vertically downwards in the drawing direction (3), a piece (15) with a weight G is detached from the free end of the strand at a time t1 and the cylindrical component is produced from the piece (15). When the piece (15) is detached, there may be a sudden reduction in weight, which leads to fluctuations in the thawing-off control. To counteract this, it is proposed according to the invention that a weight compensating force which acts counter to the drawing direction (3), increases over time and completely or partially compensates for the weight G of the piece (15), is applied to the piece to be detached at a time t0 before t1.
摘要翻译：在用于从石英玻璃制造圆柱形部件的已知的拉伸方法中，从拉制方向（3）向下垂直向下的软化的石英玻璃组合物（13）连续地取出石英玻璃丝束（2），具有在时间t1，重量G从股线的自由端分离，并且圆柱形部件由零件（15）产生。当拆卸件（15）时，重量可能突然减小，这导致解冻控制的波动。为了抵消这一点，根据本发明提出，与时间相对的作用力相对于拉伸方向（3）的重量补偿力随着零件（15）的重量G而被增加并被完全或部分地补偿在t1之前的时间t0分离。

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