Patents by Inventor Rüdiger DIETRICH

Rüdiger DIETRICH has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 11339082
    Abstract: Chemically toughened glass is provided that has a depth of compressive stress for potassium of at least 4 ?m and at most 8 ?m; a compressive stress at a depth of 30 ?m due to sodium exchange of at most 200 MPa and a minimum amount of at least 90 MPa where the thickness is 0.5 mm, at least 100 MPa where the thickness is 0.55 mm, at least 110 MPa in where the thickness is 0.6 mm, at least 120 MPa where the thickness is 0.7 mm, and at least 140 MPa where the thickness is 1 mm; a ratio of sodium exchange depth, in ?m, to the thickness, in mm, that is greater than 0.130; and a normalized integral of tensile stress that is a storable tensile stress of at least 20.6 MPa and at most 30 MPa.
    Type: Grant
    Filed: October 8, 2019
    Date of Patent: May 24, 2022
    Assignee: SCHOTT AG
    Inventors: Rüdiger Dietrich, Jochen Alkemper, Oliver Hochrein, Susanne Krüger, Julia Weißhuhn
  • Publication number: 20220153629
    Abstract: A chemically toughened or chemically toughenable sheet-like glass article is provided. The glass article includes a glass with a composition having Al2O3, SiO2, Li2O, and B2O3. The glass and/or the glass article includes not more than 7 w t% of B2O3.
    Type: Application
    Filed: February 4, 2022
    Publication date: May 19, 2022
    Applicant: SCHOTT AG
    Inventors: Inge BURGER, Thomas SEUTHE, Jochen ALKEMPER, Susanne KRÜGER, Oliver HOCHREIN, Rüdiger DIETRICH, Jovana DJORDJEVIC-REISS, Thomas SCHMIADY, Jörg HESSENKEMPER, Sebastian LEUKEL, Julia WEISSHUHN
  • Publication number: 20210039981
    Abstract: A plate-shaped or disc-shaped, chemically prestressed or chemically prestressable glass article is provided. The article includes a glass with a composition of SiO2, Al2O3, and Li2O; and a set-drop strength of at least 50 and up to 150, given as drop height in cm, wherein the drop height is given as the mean value of 15 samples, with the use of a sandpaper grit of 60. The glass has one or more features including: a CIL of greater than 1 N, 1.2 N, 2N, or 3 N, a DoL of at least 90 ?m, 100 ?m, 115 ?m, or 130 ?m, a content of network formers of at least 82 wt. %, and a content of alkali oxides of at most 14 wt. % or 12 wt. %.
    Type: Application
    Filed: August 5, 2020
    Publication date: February 11, 2021
    Applicant: SCHOTT AG
    Inventors: Jochen Alkemper, Rüdiger Dietrich, Jovana Djordjevic-Reiss, Inge Burger
  • Publication number: 20210039989
    Abstract: Plate-shaped, chemically prestressed glass articles as well as methods for producing such chemically prestressed glass articles are provided. The glass article has a glass with a composition comprising SiO2, Al2O3, and Li2O and a set-drop strength from 50 to 150. The glass has at least one feature selected from: a sodium exchange depth, a storable tensile stress, a network former content of at least 82 wt %, a content of alkali oxides of at most 12 wt %, a content of alkali oxides of at most 10 wt %, and any combinations thereof.
    Type: Application
    Filed: August 5, 2020
    Publication date: February 11, 2021
    Applicant: SCHOTT AG
    Inventors: Rüdiger Dietrich, Julia Weisshuhn, Jovana Djordjevic-Reiss
  • Publication number: 20200238664
    Abstract: Thin glass substrates are provided. Also provided are methods and apparatuses for the production thereof and provides a thin glass substrate of improved optical quality. The method includes, after the melting and before a hot forming process, adjusting the viscosity of the glass that is to be formed or has at least partially been formed is in a defined manner for the thin glass substrate to be obtained. The apparatus includes a device for melting, a device for hot forming, and also a device for defined adjustment of the viscosity of the glass to be formed into a thin glass substrate, and the device for defined adjustment of the viscosity of the glass to be formed into a thin glass substrate is arranged upstream of the device for hot forming.
    Type: Application
    Filed: April 17, 2020
    Publication date: July 30, 2020
    Applicant: SCHOTT AG
    Inventors: Armin VOGL, Thomas SCHMIADY, Thilo ZACHAU, Michael MEISTER, Jochen ALKEMPER, Christian KUNERT, Lutz KLIPPE, Rüdiger DIETRICH
  • Publication number: 20200109080
    Abstract: Chemically toughened glass is provided that has a depth of compressive stress for potassium of at least 4 ?m and at most 8 ?m; a compressive stress at a depth of 30 ?m due to sodium exchange of at most 200 MPa and a minimum amount of at least 90 MPa where the thickness is 0.5 mm, at least 100 MPa where the thickness is 0.55 mm, at least 110 MPa in where the thickness is 0.6 mm, at least 120 MPa where the thickness is 0.7 mm, and at least 140 MPa where the thickness is 1 mm; a ratio of sodium exchange depth, in ?m, to the thickness, in mm, that is greater than 0.130; and a normalized integral of tensile stress that is a storable tensile stress of at least 20.6 MPa and at most 30 MPa.
    Type: Application
    Filed: October 8, 2019
    Publication date: April 9, 2020
    Applicant: SCHOTT AG
    Inventors: Rüdiger Dietrich, Jochen Alkemper, Oliver Hochrein, Susanne Krüger, Julia Weißhuhn
  • Publication number: 20190308900
    Abstract: A thin glass substrate, as well as a method and an apparatus are provided. The glass substrate has a glass having first and second main surfaces and elongated elevations on one of the main surfaces. The elevations rise in a normal direction, have a longitudinal extent that is greater than two times a transverse extent, and have a height, on average, that is less than 100 nm, and with a transverse extent of the elevation smaller than 40 mm. The method includes melting a glass, hot forming the glass, and adjusting a viscosity of the glass so that for the viscosity ?1 for a first stretch over a first distance of up to 1.5 m downstream of a flow rate control component and y1 indicating a second distance to a location immediately downstream the flow rate control component the equation lg ?1(y1)/dPa·s=(lg ?01/dPa·s+a1(y1)) applies.
    Type: Application
    Filed: June 24, 2019
    Publication date: October 10, 2019
    Applicant: SCHOTT AG
    Inventors: Armin VOGL, Thomas SCHMIADY, Thilo ZACHAU, Jochen ALKEMPER, Michael MEISTER, Christian KUNERT, Lutz KLIPPE, Rüdiger DIETRICH
  • Publication number: 20190308394
    Abstract: A laminated glass pane is provided that includes a first glass sheet, a polymeric layer having a thickness between at least 0.5 mm and at most 1.7 mm, and a second inner glass sheet which has a thickness of at least 0.3 mm and at most 1.5 mm and is made of a lithium aluminum silicate glass. The polymeric layer is disposed between the at least two glass sheets. Furthermore, the glasses of the first and the second glass sheets are matched so that the temperatures at which the two glasses of the first and second glass sheets have the same viscosity in the viscosity range between 107 dPa·s and 1010 dPa·s differ from each other only by a maximum of 50° C.
    Type: Application
    Filed: June 24, 2019
    Publication date: October 10, 2019
    Applicant: SCHOTT AG
    Inventors: Jochen ALKEMPER, Lutz KLIPPE, Rüdiger DIETRICH