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    GLASS TUBE ELEMENT WITH IMPROVED QUALITY
    21.
    发明申请
    GLASS TUBE ELEMENT WITH IMPROVED QUALITY 有权

    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.

    Method and apparatus for imaging the inner contour of a tube
    23.
    发明申请
    Method and apparatus for imaging the inner contour of a tube 审中-公开

    公开(公告)号：US20180059401A1

    公开(公告)日：2018-03-01

    申请号：US15693670

    申请日：2017-09-01

    Applicant: SCHOTT AG

    Inventor： Hans Wiedenmann ,  André Witzmann

    IPC: G02B23/24 ,  G02B23/04 ,  G02B23/02 ,  G02B27/28 ,  G01N21/954

    Abstract: An apparatus and to a method for imaging the inner contour of a tube are provided. The method includes radiating light having a first polarization direction onto a first tube end in the longitudinal direction of the tube; reflecting the light downstream of a second tube end, wherein the light that is returning through the tube due to the reflection has a second polarization direction that is orthogonal with respect to the first polarization direction; and filtering the returning light with a polarization filter to transmit only the returning light.

    Glass tube
    24.
    发明授权
    Glass tube 有权

    公开(公告)号：US12240777B2

    公开(公告)日：2025-03-04

    申请号：US17358467

    申请日：2021-06-25

    Applicant: Schott AG

    Inventor： André Witzmann ,  Volker Trinks ,  Thomas Lenz

    IPC: C03B17/04 ,  A61J1/05 ,  C03B33/06 ,  C03C3/093

    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 ) ⁢ ⁢ % .

    METHOD AND SYSTEM FOR OBTAINING CUT ELONGATED ELEMENTS
    27.
    发明申请
    METHOD AND SYSTEM FOR OBTAINING CUT ELONGATED ELEMENTS 有权

    公开(公告)号：US20230089514A1

    公开(公告)日：2023-03-23

    申请号：US17903587

    申请日：2022-09-06

    Applicant: Schott AG

    Inventor： André Witzmann ,  Ulla Trinks

    IPC: C03B37/16

    Abstract: A bundle includes five or more cut elongated glass elements. Each cut elongated glass element includes a first end, a cylindrical portion, and a second end. At least one of the following equations is fulfilled: i) (Icenter(max)−Icenter(min))/Icenter(mean)≤4.0×10−2 [μm/μm]; or ii) (Icontinuous(max)−Icontinuous(min))/Icenter(mean)≤4.0×10−2 [μm/μm]. Icenter(max) is a maximum center inner diameter of the cylindrical portions of all cut elongated glass elements; Icenter(min) is a minimum center inner diameter of the cylindrical portion of all cut elongated glass elements; Icenter(mean) is a mean of inner diameters at a center of the cylindrical portions of all cut elongated glass elements; Icontinuous(max) is a maximum continuous inner diameter of the cylindrical portion of any single cut elongated glass element; and Icontinuous(min) is a minimum continuous inner diameter of the cylindrical portion of the single cut elongated glass element.

    METHOD FOR MANUFACTURING A HOLLOW GLASS PRODUCT FROM A GLASS TUBE SEMI-FINISHED PRODUCT HAVING MARKINGS, AND USES OF THE SAME
    28.
    发明申请
    METHOD FOR MANUFACTURING A HOLLOW GLASS PRODUCT FROM A GLASS TUBE SEMI-FINISHED PRODUCT HAVING MARKINGS, AND USES OF THE SAME 有权

    公开(公告)号：US20220234949A1

    公开(公告)日：2022-07-28

    申请号：US17717904

    申请日：2022-04-11

    Applicant: SCHOTT AG

    Inventor： André Witzmann ,  Ulla Trinks ,  Reinhard Männl

    IPC: C03C23/00 ,  C03B23/04 ,  G06V20/80 ,  B41M7/00 ,  G06K19/06

    Abstract: A glass tube semi-finished product or a hollow glass product manufactured from the glass tube semi-finished product is provided with a first marking with information on the origin and/or tube-specific production data of the glass tube semi-finished product, which marking is read from the hollow glass product after its manufacture to determine the origin and/or the tube-specific production data of the glass tube semi-finished product, e.g., to identify the semi-finished glass tube from which the hollow glass product has been made, and/or trace the tube-specific production data of this glass tube semi-finished product. This means that the entire supply chain for the hollow glass product from the supplier of the originally used glass tube semi-finished product up to the end product can be determined. The physical and chemical characteristics of the glass tube semi-finished product are not altered for producing the first marking.

    METHOD AND APPARATUS FOR PRODUCING HOLLOW GLASS BODY PRODUCTS, AND HOLLOW GLASS BODY PRODUCTS AND THEIR USE
    29.
    发明申请
    METHOD AND APPARATUS FOR PRODUCING HOLLOW GLASS BODY PRODUCTS, AND HOLLOW GLASS BODY PRODUCTS AND THEIR USE 审中-公开

    公开(公告)号：US20190322565A1

    公开(公告)日：2019-10-24

    申请号：US16392117

    申请日：2019-04-23

    Applicant: Schott AG

    Inventor： André Witzmann ,  Fabian Wagner

    IPC: C03B33/085 ,  C03B33/10

    Abstract: A method and apparatus is provided for producing a hollow glass body product including a hollow glass body having an outer surface with a first end portion and a second end portion, the first end portion being sealed by a first bottom and the second end portion being sealed by a second bottom. A plurality of spaced apart filamentary defects are provided in the outer surface and at least part of the filamentary defects form open passages connecting an interior of the hollow glass body to the outer surface thereof. Each individual passage has a diameter in the micrometer range between more than 0 micrometers and less than 50 micrometers. A plurality of the micrometer range-sized open passages provides a total cross-sectional area sufficiently large for venting and/or pressure equalization.

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