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).
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Publication number: 20210187496Abstract: A glass container is provided that includes a tube, a circular bottom, and a longitudinal axis. A curved glass heel extends from an outer end the bottom to the first end of the tube. The two-dimensional distance h(x,y) between a contact plane and the outer surface. The two-dimensional distance is measured in a direction parallel to the axis. The slope magnitude of the outer surface at the given position x,y is given by ?{square root over ((dh/dx)2+(dh/dy)2)}. The 75% quantile of values that have been determined for the term ?{square root over ((dh/dx)2+(dh/dy)2)}×d1/h(xy)delta for all given positions x,y within a circular area having a radius of 0.4×d2/2 and that correspond to the centre is less than 4100 ?m/mm. The adjacent positions x,y increase stepwise by 200 ?m, and h(x,y)delta=h(x,y)max?h(x,y)min, h(x,y)max is a maximum value for h(x,y) and h(x,y)min is a minimum value for h(x,y) being determined in that circular area.Type: ApplicationFiled: December 18, 2020Publication date: June 24, 2021Applicants: SCHOTT AG, SCHOTT Schweiz AGInventors: Robert Frost, Doris Moseler, Günter Weidmann, Roman Huhn, Jens Ulrich Thomas, Alexander Humbertjean, Frank-Thomas Lentes, Andreas Langsdorf
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Patent number: 11014701Abstract: 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: GrantFiled: April 25, 2019Date of Patent: May 25, 2021Assignee: Schott AGInventors: Andreas Langsdorf, Peter Thomas, Florian Maurer, Hanspeter Kummer, Fatih Mutlu
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Publication number: 20210085877Abstract: 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: ApplicationFiled: August 12, 2020Publication date: March 25, 2021Applicant: SCHOTT AGInventors: Roman Oberhänsli, Ivo Andreoli, Martha Strassmann, Andreas Langsdorf, Peter Thomas
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Publication number: 20210085878Abstract: 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 ci with an outer radius r1. The outer contour of the glass syringe barrel in the shoulder region is defined by a certain value for r1.Type: ApplicationFiled: August 12, 2020Publication date: March 25, 2021Applicant: SCHOTT AGInventors: Roman Oberhansli, Ivo Andreoli, Martha Strassmann, Andreas Langsdorf, Peter Thomas
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Publication number: 20210002016Abstract: 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: ApplicationFiled: July 6, 2020Publication date: January 7, 2021Applicant: SCHOTT AGInventors: Andreas Langsdorf, Florian Maurer, Peter Thomas, Alexander Humbertjean, Tobias Wetzel, Hanspeter Kummer
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Publication number: 20210000690Abstract: 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: ApplicationFiled: July 6, 2020Publication date: January 7, 2021Applicant: SCHOTT AGInventors: Andreas Langsdorf, Florian Maurer, Peter Thomas, Alexander Humbertjean, Tobias Wetzel, Hanspeter Kummer
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Publication number: 20200255316Abstract: 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: ApplicationFiled: April 27, 2020Publication date: August 13, 2020Inventors: Frank BÜLLESFELD, Doris MOSELER, Axel OHLINGER, Andreas LANGSDORF, Lothar WILLMES
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Publication number: 20200140328Abstract: 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: ApplicationFiled: November 5, 2019Publication date: May 7, 2020Applicant: SCHOTT AGInventors: Andreas Langsdorf, Stephan Tratzky, Florian Maurer, Peter Thomas
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Patent number: 10505129Abstract: 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: GrantFiled: April 27, 2017Date of Patent: December 10, 2019Assignee: SCHOTT AGInventors: Bernd Loeffelbein, Frank Buellesfeld, Andreas Langsdorf
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Publication number: 20190350806Abstract: 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: ApplicationFiled: April 25, 2019Publication date: November 21, 2019Applicant: Schott AGInventors: Andreas Langsdorf, Peter Thomas, Florian Maurer, Hanspeter Kummer, Fatih Mutlu
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Publication number: 20190352038Abstract: 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: ApplicationFiled: April 25, 2019Publication date: November 21, 2019Applicant: Schott AGInventors: Andreas Langsdorf, Peter Thomas, Florian Maurer, Hanspeter Kummer, Fatih Mutlu
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Publication number: 20170338428Abstract: 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: ApplicationFiled: April 27, 2017Publication date: November 23, 2017Applicant: SCHOTT AGInventors: Bernd Loeffelbein, Frank Buellesfeld, Andreas Langsdorf
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Patent number: 9700682Abstract: 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: GrantFiled: December 12, 2013Date of Patent: July 11, 2017Assignee: Schott AGInventors: Andreas Langsdorf, Inka Henze, Wolfram Beier, Axel Ohlinger
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Patent number: 9656913Abstract: 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: GrantFiled: September 6, 2013Date of Patent: May 23, 2017Assignee: SCHOTT AGInventors: Ina Mitra, Andreas Langsdorf, Christoph Gross, Ulrike Stoehr, Kurt Schaupert
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Patent number: 9221705Abstract: 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: GrantFiled: April 28, 2011Date of Patent: December 29, 2015Assignee: SCHOTT AGInventors: Andreas Langsdorf, Bernd Hoppe, Ulrich Lange
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Patent number: 9107805Abstract: 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: GrantFiled: March 28, 2013Date of Patent: August 18, 2015Assignee: SCHOTT AGInventors: Andreas Langsdorf, Juergen Thuerk, Aurel Kunz, Ulrich Lange, Joachim Kuester, Bernd Loeffelbein, Marcus Meinefeld, Uwe Rothhaar, Axel Ohlinger
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Publication number: 20150067567Abstract: 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: ApplicationFiled: July 25, 2014Publication date: March 5, 2015Applicant: REICHHARDT GMBH STEUERUNGSTECHNIKInventor: Andreas LANGSDORF
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Patent number: 8859079Abstract: 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: GrantFiled: July 8, 2011Date of Patent: October 14, 2014Assignee: Schott AGInventors: Friedrich Siebers, Bernd Ruedinger, Andreas Langsdorf, Markus Heiss
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Publication number: 20140171901Abstract: 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: ApplicationFiled: December 12, 2013Publication date: June 19, 2014Applicant: Schott AGInventors: Andreas Langsdorf, Inka Henze, Wolfram Beier, Axel Ohlinger
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Patent number: 8728961Abstract: 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: GrantFiled: July 27, 2011Date of Patent: May 20, 2014Assignee: Schott AGInventors: Gerhard Lautenschlaeger, Andreas Langsdorf, Ulrich Lange, Bernd Ruedinger, Klaus Schneider, Michael Jacquorie, Friedrich Siebers, Wolfgang Schmidbauer