Patents by Inventor Andreas Langsdorf

Andreas Langsdorf 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).

  • Publication number: 20210085877
    Abstract: A glass syringe barrel is provided that has an at least partially conically shaped upper portion and a longitudinal axis. The glass syringe barrel has a top end through which a liquid can be ejected and a bottom end into which a plunger stopper can be pushed. The glass syringe barrel includes, in a direction from the top end to the bottom end, a cone, a shoulder region, and a body region. The shoulder region has and outer contour that has a concave and substantially circular arc-shaped area c1 with an outer radius r1. The outer contour of the glass syringe barrel in the shoulder region is defined by a certain minimum value the radius of curvature.
    Type: Application
    Filed: August 12, 2020
    Publication date: March 25, 2021
    Applicant: SCHOTT AG
    Inventors: Roman Oberhänsli, Ivo Andreoli, Martha Strassmann, Andreas Langsdorf, Peter Thomas
  • Publication number: 20210002016
    Abstract: A glass container is provided having a glass tube with a first end and a second end and a glass bottom closing the second end. The glass tube has a longitudinal axis and has, in a direction from the first to the second end, a top region, a junction region, a neck region, a shoulder region, and a body region. The top region is at the first end and has an outer diameter (dt), the neck region has an outer diameter (dn) with dn<dt, the body region extends to the second end and has an outer diameter (db) with db>dt, and the glass tube in the body region has a thickness (lb). The outer contour in a transition area between the top and neck regions is defined by a radius of curvature. The glass containers have a neck squeeze test load of at least 1100 N.
    Type: Application
    Filed: July 6, 2020
    Publication date: January 7, 2021
    Applicant: SCHOTT AG
    Inventors: Andreas Langsdorf, Florian Maurer, Peter Thomas, Alexander Humbertjean, Tobias Wetzel, Hanspeter Kummer
  • Publication number: 20210000690
    Abstract: A glass container is provided having a glass tube with a first end and a second end and a glass bottom closing the second end. The glass tube has a longitudinal axis and has, in a direction from the first to the second end, a top region, a junction region, a neck region, a shoulder region, and a body region. The top region is at the first end and has an outer diameter (dt), the neck region has an outer diameter (dn) with dn<dt, the body region extends to the second end and has an outer diameter (db) with db>dt, and the glass tube in the body region has a thickness (lb). The outer contour in a transition area between the top and neck regions is defined by a radius of curvature. The glass containers have a neck squeeze test load of at least 1100 N.
    Type: Application
    Filed: July 6, 2020
    Publication date: January 7, 2021
    Applicant: SCHOTT AG
    Inventors: Andreas Langsdorf, Florian Maurer, Peter Thomas, Alexander Humbertjean, Tobias Wetzel, Hanspeter Kummer
  • Publication number: 20200255316
    Abstract: The present disclosure provides a device and a method with which flat glasses with particularly uniform thickness can be obtained. The methods are drawing methods in which a glass ribbon is drawn. In the method an aperture is used which allows a defined very small slit between the glass ribbon and the aperture also in the case of a change of the position of the glass ribbon.
    Type: Application
    Filed: April 27, 2020
    Publication date: August 13, 2020
    Inventors: Frank BÜLLESFELD, Doris MOSELER, Axel OHLINGER, Andreas LANGSDORF, Lothar WILLMES
  • Publication number: 20200140328
    Abstract: A container of glass and a method for chemically prestressing such a container of glass are provided. The container of glass includes a hollow body with an internal volume, a wall with an inside surface, which borders the internal volume of the hollow body, and an outside surface opposite the inside surface. The wall has, at least in a partial region, a zone with compressive stress formed bordering the outside surface, as a result of which the outside surface is compression-prestressed at least in a partial region. The inside surface of the wall opposite this partial region is free from compressive stresses and is under tensile stress.
    Type: Application
    Filed: November 5, 2019
    Publication date: May 7, 2020
    Applicant: SCHOTT AG
    Inventors: Andreas Langsdorf, Stephan Tratzky, Florian Maurer, Peter Thomas
  • Patent number: 10505129
    Abstract: A redrawing method for the production of thin glasses is provided that allows redraw of high refractive index optical glasses. The includes the steps of providing a vitreous preform with a mean width B, a mean thickness D, and a refractive index nD of at least 1.68 in a redrawing device, heating at least a part of the preform, redrawing of the preform to a thin glass with a mean width b and a mean thickness d. The heated part of the preform exhibits, for the duration of at most 30 minutes, a temperature above a lower limit of devitrification of the glass. The glass of the preform exhibits a dependence of the viscosity on the temperature, which is characterized by a mean decrease of the viscosity with increasing temperature in an viscosity range of 108 to 105 dPas of at least 3*105 dPas/K.
    Type: Grant
    Filed: April 27, 2017
    Date of Patent: December 10, 2019
    Assignee: SCHOTT AG
    Inventors: Bernd Loeffelbein, Frank Buellesfeld, Andreas Langsdorf
  • Publication number: 20190352038
    Abstract: A glass container for packaging a pharmaceutical composition including a glass tube with a first end and a second end, the glass tube having a wall thickness dw, a glass bottom having an outer area, and the glass bottom closes the glass tube at the first end. The glass container further including a curved glass heel extending from the outer area of the glass bottom to the first end of the glass tube. The curved glass heel is defined by an outer radius ro, an inner radius ri and a thickness of the glass dh in the curved glass heel, further wherein dh3/(ro×dw)>0.8 mm.
    Type: Application
    Filed: April 25, 2019
    Publication date: November 21, 2019
    Applicant: Schott AG
    Inventors: Andreas Langsdorf, Peter Thomas, Florian Maurer, Hanspeter Kummer, Fatih Mutlu
  • Publication number: 20190350806
    Abstract: A glass container for packaging a pharmaceutical composition including a glass tube with a first end and a second end, the glass tube having a wall thickness dw and an outer diameter dc, a glass bottom with an outer area, the glass bottom closes the glass tube at the first end, and a curved glass heel extending from the outer area of the glass bottom to the first end of the glass tube. The curved glass heel is defined by an outer radius ro, an inner radius ri, and a thickness of the glass dh in the curved glass heel and wherein: [100×(dh3×ri)/(dw ×dc2)]+(4.4 mm2/dc)>0.55 mm.
    Type: Application
    Filed: April 25, 2019
    Publication date: November 21, 2019
    Applicant: Schott AG
    Inventors: Andreas Langsdorf, Peter Thomas, Florian Maurer, Hanspeter Kummer, Fatih Mutlu
  • Publication number: 20170338428
    Abstract: A redrawing method for the production of thin glasses is provided that allows redraw of high refractive index optical glasses. The includes the steps of providing a vitreous preform with a mean width B, a mean thickness D, and a refractive index nD of at least 1.68 in a redrawing device, heating at least a part of the preform, redrawing of the preform to a thin glass with a mean width b and a mean thickness d. The heated part of the preform exhibits, for the duration of at most 30 minutes, a temperature above a lower limit of devitrification of the glass. The glass of the preform exhibits a dependence of the viscosity on the temperature, which is characterized by a mean decrease of the viscosity with increasing temperature in an viscosity range of 108 to 105 dPas of at least 3*105 dPas/K.
    Type: Application
    Filed: April 27, 2017
    Publication date: November 23, 2017
    Applicant: SCHOTT AG
    Inventors: Bernd Loeffelbein, Frank Buellesfeld, Andreas Langsdorf
  • Patent number: 9700682
    Abstract: A device for retaining and storing a liquid medium, such as medication, includes a syringe body, a retention and/or storage container, consisting essentially of a glass material, a closure element for the retention and/or storage container consisting essentially of a rubber elastic material, and at least one needle. The retention and/or storage container is a vial having a solid bottom and a pushing device is provided to move the vial in a substantially axial direction in the syringe body, the pushing device acting upon the solid bottom of the vial.
    Type: Grant
    Filed: December 12, 2013
    Date of Patent: July 11, 2017
    Assignee: Schott AG
    Inventors: Andreas Langsdorf, Inka Henze, Wolfram Beier, Axel Ohlinger
  • Patent number: 9656913
    Abstract: A transparent laminate is provided that includes at least one chemically prestressed pane having a thickness, a compressive stress (CS) of a surface layer, a thickness of the prestressed surface layer and a tensile stress (CT) of an interior portion. The tensile stress (CT) is greater than 0 and is less than the compressive stress divided by 50.
    Type: Grant
    Filed: September 6, 2013
    Date of Patent: May 23, 2017
    Assignee: SCHOTT AG
    Inventors: Ina Mitra, Andreas Langsdorf, Christoph Gross, Ulrike Stoehr, Kurt Schaupert
  • Patent number: 9221705
    Abstract: Processes for producing shaped glass articles with a defined geometry are provided. In some embodiment, the process includes arranging a glass pane on a mould, heating the glass pane by infrared radiation, deforming the heated glass pane over the mould by gravity, negative pressure, and/or positive pressure, and cooling the shaped glass pane to obtain the shaped glass article with a defined geometry.
    Type: Grant
    Filed: April 28, 2011
    Date of Patent: December 29, 2015
    Assignee: SCHOTT AG
    Inventors: Andreas Langsdorf, Bernd Hoppe, Ulrich Lange
  • Patent number: 9107805
    Abstract: A container for pharmaceutical and medical applications made from glass, preferably from a borosilicate glass. The container is formed in the shape of a hollow body open at both its ends with a cylindrical portion having a wall thickness tolerance of maximally ±0.2 mm. The borosilicate glass has a nominal boron content that drops by less than 40% relative to the nominal value at all of the surfaces of the container.
    Type: Grant
    Filed: March 28, 2013
    Date of Patent: August 18, 2015
    Assignee: SCHOTT AG
    Inventors: Andreas Langsdorf, Juergen Thuerk, Aurel Kunz, Ulrich Lange, Joachim Kuester, Bernd Loeffelbein, Marcus Meinefeld, Uwe Rothhaar, Axel Ohlinger
  • Publication number: 20150067567
    Abstract: A system for providing machine-specific information on a mobile machine which includes a programmable electronic control device and an associated user interface includes a command input mechanism and a graphic display panel, the control device and/or the user interface having implemented in them a program module executing program commands for generating a digital code which is displayed on the display panel and contains address and/or identification data and/or current messages of the machine. Implemented in a mobile digital reading device having a camera, a data processor, a data memory and a wireless communication link installing mechanism is an application program capable of executing program commands for installing a communication link to a digital communications device remote from the machine and for transmitting a digital code captured by the camera or. code information converted into machine-readable data to the remote communications device.
    Type: Application
    Filed: July 25, 2014
    Publication date: March 5, 2015
    Applicant: REICHHARDT GMBH STEUERUNGSTECHNIK
    Inventor: Andreas LANGSDORF
  • Patent number: 8859079
    Abstract: A glass having excellent resistance against surface damages is provided. The glass includes a content of alkaline earth oxides of at least 0.3% by weight and of P2O5 of 0.1 to 4% by weight; the glass has at least one surface that has precipitations with a mean size of 1 to 20 ?m. A method is further provided and includes melting a glass batch, yielding a glass melt, and casting the glass melt onto a float bath. The glass melt is maintained on the float bath at a temperature of above 1000° C. for at least 5 minutes, and yields glass. The glass has a content of alkaline earth oxides of at least 0.3% by weight and of P2O5 of 0.1 to 4% by weight, and the glass has at least one surface that has precipitations with a mean size of 1 to 20 ?m.
    Type: Grant
    Filed: July 8, 2011
    Date of Patent: October 14, 2014
    Assignee: Schott AG
    Inventors: Friedrich Siebers, Bernd Ruedinger, Andreas Langsdorf, Markus Heiss
  • Publication number: 20140171901
    Abstract: A device for retaining and storing a liquid medium, such as medication, includes a syringe body, a retention and/or storage container, consisting essentially of a glass material, a closure element for the retention and/or storage container consisting essentially of a rubber elastic material, and at least one needle. The retention and/or storage container is a vial having a solid bottom and a pushing device is provided to move the vial in a substantially axial direction in the syringe body, the pushing device acting upon the solid bottom of the vial.
    Type: Application
    Filed: December 12, 2013
    Publication date: June 19, 2014
    Applicant: Schott AG
    Inventors: Andreas Langsdorf, Inka Henze, Wolfram Beier, Axel Ohlinger
  • Patent number: 8728961
    Abstract: A method is described for making a float glass convertible into a glass ceramic, by which a largely crystal fault-free glass can be produced. In this method the glass is cooled from a temperature (TKGmax), at which a crystal growth rate is at a maximum value (KGmax), to another temperature (TUEG), at which practically no more crystal growth occurs, with a cooling rate, KR, in ° C. min?1 according to: KR UEG KGmax ? ? ? ? T UEG KGmax 100 · KG ? ? max , wherein ?T=TKGmax?TUEG, and KGmax=maximum crystal growth rate in ?m min?1. The float glass has a thickness below an equilibrium thickness, a net width of at least 1 m and has no more than 50 crystals with a size of more than 50 ?m, especially no crystals with a size of more than 10 ?m, per kilogram of glass within the net width.
    Type: Grant
    Filed: July 27, 2011
    Date of Patent: May 20, 2014
    Assignee: Schott AG
    Inventors: Gerhard Lautenschlaeger, Andreas Langsdorf, Ulrich Lange, Bernd Ruedinger, Klaus Schneider, Michael Jacquorie, Friedrich Siebers, Wolfgang Schmidbauer
  • Publication number: 20140072754
    Abstract: A transparent laminate is provided that includes at least one chemically prestressed pane having a thickness, a compressive stress (CS) of a surface layer, a thickness of the prestressed surface layer and a tensile stress (CT) of an interior portion. The tensile stress (CT) is greater than 0 and is less than the compressive stress divided by 50.
    Type: Application
    Filed: September 6, 2013
    Publication date: March 13, 2014
    Applicant: Schott AG
    Inventors: Ina MITRA, Andreas LANGSDORF, Christoph GROSS, Ulrike STOEHR, Kurt SCHAUPERT
  • Publication number: 20130298608
    Abstract: Processes for producing shaped glass articles with a defined geometry are provided. In some embodiment, the process includes arranging a glass pane on a mould, heating the glass pane by infrared radiation, deforming the heated glass pane over the mould by gravity, negative pressure, and/or positive pressure, and cooling the shaped glass pane to obtain the shaped glass article with a defined geometry.
    Type: Application
    Filed: April 28, 2011
    Publication date: November 14, 2013
    Applicant: SCHOTT AG
    Inventors: Andreas Langsdorf, Bernd Hoppe, Ulrich Lange
  • Patent number: 8464553
    Abstract: The invention proposes a process for the production of a container for pharmaceutical and medical applications made from glass, preferably from a borosilicate glass, wherein the container is produced by a press-blow process where the container is initially preformed in a pressing step, by making a ram press a dispensed glass drop into a mold that is open at its bottom, and where the parison so produced is given its final form by a subsequent blowing step.
    Type: Grant
    Filed: February 5, 2010
    Date of Patent: June 18, 2013
    Assignee: Schott AG
    Inventors: Andreas Langsdorf, Juergen Thuerk, Aurel Kunz, Ulrich Lange, Joachim Kuester, Bernd Loeffelbein, Marcus Meinefeld, Uwe Rothhaar, Axel Ohlinger