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公开(公告)号：US20230265003A1
公开(公告)日：2023-08-24
申请号：US18309784
申请日：2023-04-29
Applicant: SCHOTT AG
Inventor： Volker Trinks , André Witzmann
IPC: C03B17/04 , C03C3/078 , C03C3/083 , C03C3/085 , C03C3/087 , C03C3/089 , C03C3/091 , C03C3/093 , C03C3/095 , C03C3/097 , C03C21/00
CPC classification number: C03B17/04 , C03C3/078 , C03C3/083 , C03C3/085 , C03C3/087 , C03C3/089 , C03C3/091 , C03C3/093 , C03C3/095 , C03C3/097 , C03C21/002
Abstract: 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.
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公开(公告)号：US11613489B2
公开(公告)日：2023-03-28
申请号：US17221566
申请日：2021-04-02
Applicant: SCHOTT AG
Inventor： Volker Trinks , André Witzmann
IPC: C03B17/04 , C03C3/083 , C03C3/085 , C03C3/087 , C03C3/089 , C03C3/091 , C03C3/093 , C03C3/095 , C03C3/097 , C03C21/00
Abstract: A glass tube element is provided that includes hollow cylindrical section that has a shell enclosing a lumen and a path extending on a surface of the shell facing away from the lumen. The path extends across a first area of the shell where the stress values are within a first interval. The path also extends across a second area of the shell where the stress values are within a second interval.
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公开(公告)号：US20240043307A1
公开(公告)日：2024-02-08
申请号：US18490346
申请日：2023-10-19
Applicant: Schott AG
Inventor： Volker Trinks
IPC: C03B17/04
CPC classification number: C03B17/04
Abstract: A sleeve shaft includes an inlay. A fluid can flow through the sleeve shaft along an axial direction which is parallel to a main extension of the sleeve shaft. The inlay includes a first wall section and the inlay is inserted at least in part into the sleeve shaft such that the inlay together with a first area of an inner surface of the sleeve shaft encloses a volume domain, which volume domain is limited in the axial direction by a limiting element comprised by the inlay. The first area of the inner surface of the sleeve shaft is an inner surface of a first section of the sleeve shaft, the first section having an inner diameter which is larger than an inner diameter of a further section of the sleeve shaft that follows the first section in a direction antiparallel to the axial direction.
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4.发明公开公开(公告)号：US20230167013A1
公开(公告)日：2023-06-01
申请号：US18059979
申请日：2022-11-29
Applicant: SCHOTT AG
Inventor： Stephan Tratzky , André Witzmann , Volker Trinks
CPC classification number: C03C4/20 , C03C3/091 , A61J1/1468 , C03C2203/50
Abstract: A glass tube for pharmaceutical containers and a process for the production of a glass tube are provided. The glass tubes have low alkali leachability and are devoid of a lamp ring.
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公开(公告)号：US11614181B2
公开(公告)日：2023-03-28
申请号：US17221560
申请日：2021-04-02
Applicant: SCHOTT AG
Inventor： Volker Trinks , André Witzmann
Abstract: A glass tube element having hollow cylindrical section that has a shell enclosing a lumen and extends along a main extension and an optical delay of a light ray. The shell has a surface facing away from the lumen. The optical delay has values that all fall within a range having a size of between 3 and 30 nm. The optical delay being an optical measurement of the glass tube element by the light ray extending along a measurement path in a direction of perpendicular to the main extension and tangent to a surface of the shell. The measurement path touches the surface for different measurements at different positions each having a different azimuth angle within a cylindrical coordinate system fixedly attached to the glass tube element and having an origin on a center axis of the glass tube element.
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Patent Agency Ranking
公开(公告)号：US20210403362A1
公开(公告)日：2021-12-30
申请号：US17358467
申请日：2021-06-25
Applicant: Schott AG
Inventor： André Witzmann , Volker Trinks , Thomas Lenz
Abstract: At least one glass tube has an azimuthal wall thickness deviation WTD of not more than 6.0%, the azimuthal wall thickness deviation being determined based on a lowest wall thickness value and a highest wall thickness value measured within a cross-section of the at least one glass tube, the azimuthal wall thickness deviation WTD being calculated according to the following formula: W T D = 100 - ( lowest wall thickness value highest wall thickness value * 100 ) % .
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公开(公告)号：US20210309555A1
公开(公告)日：2021-10-07
申请号：US17221530
申请日：2021-04-02
Applicant: SCHOTT AG
Inventor： Volker Trinks , André Witzmann
IPC: C03B17/04 , C03C21/00 , C03C3/097 , C03C3/095 , C03C3/089 , C03C3/091 , C03C3/093 , C03C3/083 , C03C3/085 , C03C3/087 , C03C3/078
Abstract: 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.
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公开(公告)号：US20240067559A1
公开(公告)日：2024-02-29
申请号：US18454327
申请日：2023-08-23
Applicant: SCHOTT AG
Inventor： Sebastian Heinl , Rainer Eichholz , Christoph Bäumler , Hans Lippert , Csaba Debreczeny , Volker Trinks
IPC: C03C3/091
CPC classification number: C03C3/091
Abstract: A glass rod includes: a glass including a glass composition, wherein the total relative length variation of the semi-major axis tlvmajor is determined as an absolute difference between (a) a smallest semi-major axis length Imajor(n) and (b) a largest semi-major axis length Imajor(n), normalized by the average semi-major axis length lmajor(a); wherein the 50 equidistant cross-sections are positioned along the length lrod of the glass rod, starting at a position of 0.01*lrod as a first position and employing a plurality of additive increments of 0.02*lrod for each subsequent position; wherein the relative local area variation lav is determined as an absolute difference between (c) a cross-sectional area that has the largest semi-major axis length Imajor(n) and (d) an average value of the cross-sectional areas, normalized by an average value of the cross-sectional areas; wherein the quality index (tlvmajor+lav) is 0.090 or less.
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公开(公告)号：US20240010539A1
公开(公告)日：2024-01-11
申请号：US18470909
申请日：2023-09-20
Applicant: Schott AG
Inventor： Hildegard Römer , Michael Hahn , Stefan Rosner , Volker Trinks , Rainer Eichholz , Christoph Bergmann , Armin Vogl , Jörg Hessenkemper , Horst Blei , Klaus Schönberger , Sybille Haas , Guido Räke , Stefan Schmitt , Christoph Berndhäuser , Olaf Claussen , Christopher Klein , Wolfgang Schmidbauer
Abstract: A method of making glass products includes: heating material to obtain a glass melt; heating the glass melt in a melting tank having a melting tank bottom, the glass melt having a melt volume, a melt surface, and a viscosity of 102 dPas at a temperature above 1580° C. The glass melt is heated such that at least some of the glass melt has a viscosity of 102.5 dPas or less. An amount of thermal energy introduced directly into the melt volume is more than 60% of a total amount of thermal energy introduced into the glass melt. A maximum difference between a temperature at a location on the melt surface and a temperature at a location at the melting tank bottom vertically underneath the location on the melt surface is such that a difference in glass melt densities is less than 0.05 g/cm3 per meter distance between the locations.
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公开(公告)号：US10227252B2
公开(公告)日：2019-03-12
申请号：US14470970
申请日：2014-08-28
Applicant: Schott AG
Inventor： Nikolaus Schultz , Nikolaos Katsikis , Volker Trinks , Reinhard Maennl
IPC: C12M3/00 , C03B23/049 , C03B23/055 , B29C53/08 , C03B23/045 , C12M1/00 , C12M1/12 , G01B11/04 , G01B11/08 , G01B11/12 , C03B23/09 , B29K101/12 , B29K105/00
Abstract: Disclosed is a method for the production of a tube having, in sections, a non-circular profile by deforming, comprising: a) providing a tube, which has a circular initial profile; b) conveying the tube in a hot, malleable state through a nip, which is formed by squeezing rollers and has a first nip width, which is larger than or equal to an outer dimension of the initial profile; c) adjusting the squeezing rollers for setting a second nip width, which is smaller than the outer dimension of the initial profile, and deforming the initial profile in said hot, malleable state for obtaining said non-circular cross section; and d) adjusting the squeezing rollers for setting a third nip width, which is larger than or equal to the outer dimension of the initial profile, and severing said tube in a region having a circular cross section; so that respective end portions of said tube have a circular cross section According to the invention, the tubes can be connected reliably with connecting-members or other tubes via the end portions having the circular profile using proven tube connection technologies. At the same time there is at least one central section having a non-circular cross section which is of advantage, for example for applications in photobioreactors.
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