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    GLASS ELEMENT WITH CUT EDGE AND METHOD OF PRODUCING SAME
    21.
    发明申请
    GLASS ELEMENT WITH CUT EDGE AND METHOD OF PRODUCING SAME 审中-公开

    公开(公告)号：US20200180994A1

    公开(公告)日：2020-06-11

    申请号：US16706184

    申请日：2019-12-06

    Applicant: SCHOTT AG

    Inventor： Markus Heiss-Chouquet ,  Matthias Jotz ,  Clemens Ottermann

    IPC: C03B33/023 ,  C03B33/027 ,  C03B33/037 ,  C03B33/04 ,  C03B33/10

    Abstract: A method is provided for scoring glasses. The method includes the steps of generating a deep crack in the glass along an intended separation line by exerting pressure onto the glass surface using a rigid scoring tool, wherein the scoring tool, by being pressed against the glass surface and due to the advancement force while introducing the deep crack generates a zone of elastic strain in the glass in a direction along the glass surface and perpendicular to the separation line, which extends in an arc in the plane defined by the separation line perpendicular to the glass surface such that one leg of the arc is located close to the contact point of the scoring tool on the glass surface and another leg is located inside the glass. The arc being open towards the advancement/advancement direction of the scoring tool.

    APPARATUS AND METHOD FOR TESTING THE STRENGTH OF SHEETS MADE OF HARD BRITTLE MATERIAL
    22.
    发明申请
    APPARATUS AND METHOD FOR TESTING THE STRENGTH OF SHEETS MADE OF HARD BRITTLE MATERIAL 审中-公开

    公开(公告)号：US20200150012A1

    公开(公告)日：2020-05-14

    申请号：US16740564

    申请日：2020-01-13

    Applicant: SCHOTT AG

    Inventor： Martin Lotze ,  Thomas Roßmeier ,  Clemens Ottermann ,  Volker Seibert

    IPC: G01N3/20

    Abstract: A method for testing the strength of a sheet-like element having two opposite faces and made of hard brittle material under tensile stress is provided. The method includes passing each of the faces of the element over a roller and thereby bending the element so that each of the faces is subjected to a first tensile stress in a portion in which the opposite face is in contact with a surface of the roller; exerting a second tensile force on the element in the direction of advancement so that both faces are subjected to the second tensile stress of at least 2 MPa so that the first and second tensile stresses add up to define a resultant tensile stress; and monitoring the element and determining whether the element has a defined breaking strength equal to the resultant tensile stress or whether the element breaks under the resultant tensile stress.

    COMPOSITE WORKPIECE, METHOD OF MANUFACTURING, DEVICE AND USE OF SUCH A COMPOSITE WORKPIECE
    29.
    发明申请
    COMPOSITE WORKPIECE, METHOD OF MANUFACTURING, DEVICE AND USE OF SUCH A COMPOSITE WORKPIECE 有权

    公开(公告)号：US20220177362A1

    公开(公告)日：2022-06-09

    申请号：US17545547

    申请日：2021-12-08

    Applicant: Schott AG

    Inventor： Thorsten Damm ,  Clemens Ottermann ,  Jens Herrmann

    IPC: C03C17/34 ,  G02B27/01

    Abstract: At least one composite workpiece includes: a substrate body including at least one first surface and at least one second surface, the at least one first surface of the substrate body being shaped convexly at least in areas and the at least one second surface of the substrate body being shaped concavely at least in areas, and the at least one composite workpiece has a bow with an absolute value of between 0.1 μm and 50 μm due to the curved shape of the at least one first surface and the at least one second surface; and at least one first coating, at least the at least one first surface of the substrate body being coated at least in areas with the first coating.

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