Patents by Inventor Günter Weidmann
Günter Weidmann 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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Patent number: 11806716Abstract: 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: GrantFiled: December 18, 2020Date of Patent: November 7, 2023Assignees: SCHOTT PHARMA AG & CO. KGAA, SCHOTT PHARMA SCHWEIZ AGInventors: Robert Frost, Doris Moseler, Günter Weidmann, Roman Huhn, Jens Ulrich Thomas, Alexander Humbertjean, Frank-Thomas Lentes, Andreas Langsdorf
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Publication number: 20230020260Abstract: A method and an apparatus for melting down glass are provided. The method includes using microwave radiation for at least part of the energy supply for melting for transforming a batch into a glass melt. The microwave radiation captures at least part of the transition between batch and primary melt. The method and apparatus include melting assembly with a melting tank which has walls within which both the batch for melting and the molten batch can be accommodated as a glass melt, where above the batch and above the glass melt there is at least one microwave-emitting source disposed.Type: ApplicationFiled: September 6, 2022Publication date: January 19, 2023Applicant: SCHOTT AGInventors: Volker OHMSTEDE, Michael HAHN, Günter WEIDMANN, Hildegard RÖMER, Peter FRANKE, Frank-Thomas LENTES, Wolfgang SCHMIDBAUER, Rainer Erwin EICHHOLZ
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Patent number: 11215812Abstract: An optical converter wheel, a method of producing, and a method of using are provided. The wheel includes an inorganic converter material that converts light of a first wavelength into light of a second wavelength and a converter substrate. The converter substrate has a coefficient of thermal expansion CTEKS of 4 to 18×10?6 1/K in a range from 20° C.-300° C. and a thermal conductivity of at least 50 W/mK at 20° C.Type: GrantFiled: July 6, 2020Date of Patent: January 4, 2022Assignee: SCHOTT AGInventors: Volker Hagemann, Albrecht Seidl, Sylvia Biedenbender, Günter Weidmann
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Publication number: 20210188687Abstract: A process for preparing a glass container that includes: providing a glass tube with a first portion, a second portion, and a longitudinal axis (Ltube); holding the first portion in a first clamping chuck and the second portion in a second clamping chuck; rotating the glass tube around the longitudinal axis (Ltube); heating, via a heater, the glass tube above a glass transition temperature; separating the first and second portions from one another by pulling apart along the longitudinal axis (Ltube) while the heated glass tube is still rotating by moving the first and the second chucks away from each other; and moving the heater, while moving the first and second chucks away from each other, so that the heater follows a mass that remains at a circular end region of the first and/or second portion.Type: ApplicationFiled: December 18, 2020Publication date: June 24, 2021Applicants: SCHOTT AG, SCHOTT Schweiz AGInventors: Robert Frost, Doris Moseler, Günter Weidmann, Roman Huhn
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Publication number: 20210187497Abstract: 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 outer surface has a topography defined by a function ?(x) that is an azimuthal average of a distance between a contact plane and the outer surface at any given position located on a circle having the centre and the radius |x|. The values ? for ?(x) are determined for a plurality of circles the radius of which increases stepwise by 500 ?m starting with a circle around the centre having a radius of 500 ?m. The values ? are determined in a range from x=?0.4×d2/2 to x=+0.4×d2/2, d2 having a size such that at least 4 values ? are determined and can be fitted with a curvature function h ^ ? ( x ) = - c × x 2 1 + 1 - c 2 × x 2 + h 0 .Type: ApplicationFiled: December 18, 2020Publication date: June 24, 2021Applicants: SCHOTT AG, SCHOTT Schweiz AGInventors: Alexander Humbertjean, Tobias Wetzel, Robert Frost, Jens Ulrich Thomas, Frank-Thomas Lentes, Andreas Langsdorf, Doris Moseler, Günter Weidmann, Roman Huhn
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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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Publication number: 20210003838Abstract: An optical converter wheel, a method of producing, and a method of using are provided. The wheel includes an inorganic converter material that converts light of a first wavelength into light of a second wavelength and a converter substrate. The converter substrate has a coefficient of thermal expansion CTEKS of 4 to 18×10?6 1/K in a range from 20° C.-300° C. and a thermal conductivity of at least 50 W/mK at 20° C.Type: ApplicationFiled: July 6, 2020Publication date: January 7, 2021Applicant: SCHOTT AGInventors: Volker Hagemann, Albrecht Seidl, Sylvia Biedenbender, Günter Weidmann
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Publication number: 20200332993Abstract: A converter arrangement for light sources with high luminance is provided that includes an axially pivotable carrying wheel and a converter fixed on one side of the carrying wheel. The converter includes fluorescent materials that convert impinging light into light having a different wave length and emits the light having the different wavelength. The ratio of the total area of the converter arrangement to the area enclosed by the outer boundary curve of the converter is at least 3, preferably at least 3.5, particularly preferably at least 4.5.Type: ApplicationFiled: July 1, 2020Publication date: October 22, 2020Applicant: SCHOTT AGInventors: Volker Hagemann, Bernd Hoppe, Guenter Weidmann, Seong-Won Kim
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Patent number: 10738988Abstract: A converter arrangement for light sources with high luminance is provided that includes an axially pivotable carrying wheel and a converter fixed on one side of the carrying wheel. The converter includes fluorescent materials that convert impinging light into light having a different wave length and emits the light having the different wavelength. The ratio of the total area of the converter arrangement to the area enclosed by the outer boundary curve of the converter is at least 3, preferably at least 3.5, particularly preferably at least 4.5.Type: GrantFiled: February 24, 2015Date of Patent: August 11, 2020Assignee: SCHOTT AGInventors: Volker Hagemann, Bernd Hoppe, Guenter Weidmann, Seong-Won Kim
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Patent number: 10358371Abstract: An apparatus and a method for producing glass products from a glass melt, avoiding bubble formation, are disclosed, wherein the apparatus includes a crucible and an internally component for processing the glass melt, and wherein, for heating the glass melt, the apparatus comprises an AC generator which energizes the crucible or stirring crucible via electrical connection elements. The component or stirring system is connected via a current-limiting choke having a variable impedance with the power supply elements. The impedance of the current-limiting choke is adjusted so that a AC density existing in the glass melt lies between a lower limit value and an upper limit value. By means of a choke and by adjusting the impedance it can be achieved that the AC load of the system can be minimized and that simultaneously the water decomposition reaction at the precious metal surfaces can positively be influenced.Type: GrantFiled: April 25, 2017Date of Patent: July 23, 2019Assignee: SCHOTT AGInventors: Klaus-Dieter Duch, Olaf Claussen, Thomas Pfeiffer, Günter Weidmann, Reinhard Wurm
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Publication number: 20170341965Abstract: A method for producing a glass product having a low bubble content from a melt is provided, wherein the melt at least partly comes into contact with a noble metal-comprising component.Type: ApplicationFiled: May 31, 2017Publication date: November 30, 2017Applicant: SCHOTT AGInventors: Olaf Claussen, Maria-Louisa Reich, Thomas Pfeiffer, Guenter Weidmann
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Patent number: 9802850Abstract: An energy-efficient device for refining a glass melt to produce a glass and/or a glass ceramic is provided. The device includes a refining crucible defined at least by lateral walls with a metallic lining as a melt contact surface, so that a melt refining volume is defined by a base surface, a top surface and a circumferential surface; at least one heating device that conductively heats the lining by an electric current in the lining, so that the melt is heated through the lining, the heating device and the lining are connected to one another by a feeding device. The feeding device establishes contact with the lining so that an electric current runs from the top surface to the base surface or from the base surface to the top surface, at least in sections of the lining.Type: GrantFiled: October 13, 2011Date of Patent: October 31, 2017Assignee: SCHOTT AGInventors: Volker Ohmstede, Wolfgang Muench, Stefan Bauer, Holger Hunnius, Guenter Weidmann
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Publication number: 20170305775Abstract: An apparatus and a method for producing glass products from a glass melt, avoiding bubble formation, are disclosed, wherein the apparatus includes a crucible and an internally component for processing the glass melt, and wherein, for heating the glass melt, the apparatus comprises an AC generator which energizes the crucible or stirring crucible via electrical connection elements. The component or stirring system is connected via a current-limiting choke having a variable impedance with the power supply elements. The impedance of the current-limiting choke is adjusted so that a AC density existing in the glass melt lies between a lower limit value and an upper limit value. By means of a choke and by adjusting the impedance it can be achieved that the AC load of the system can be minimized and that simultaneously the water decomposition reaction at the precious metal surfaces can positively be influenced.Type: ApplicationFiled: April 25, 2017Publication date: October 26, 2017Applicant: SCHOTT AGInventors: Klaus-Dieter Duch, Olaf Claussen, Thomas Pfeiffer, Günter Weidmann, Reinhard Wurm
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Patent number: 9738828Abstract: An optical converter for producing colored or white light from blue excitation light is provided. The converter has good scattering properties to be able to produce nearly white light from the scattered blue light components and the scattered, converted yellow light components. The optical converter includes material including one or more of a YAG ceramic, a LuAG ceramic, and a magnesium-aluminum ceramic exhibiting strong scattering.Type: GrantFiled: April 25, 2014Date of Patent: August 22, 2017Assignee: SCHOTT AGInventors: Volker Hagemann, Peter Nass, Yvonne Menke, Bernd Hoppe, Wolfram Beier, Rainer Liebald, Niko Schultz, Guenter Weidmann, Hauke Esemann
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Publication number: 20150241046Abstract: A converter arrangement for light sources with high luminance is provided that includes an axially pivotable carrying wheel and a converter fixed on one side of the carrying wheel. The converter includes fluorescent materials that convert impinging light into light having a different wave length and emits the light having the different wavelength. The ratio of the total area of the converter arrangement to the area enclosed by the outer boundary curve of the converter is at least 3, preferably at least 3.5, particularly preferably at least 4.5.Type: ApplicationFiled: February 24, 2015Publication date: August 27, 2015Inventors: Volker Hagemann, Bernd Hoppe, Guenter Weidmann, Seong-Won Kim
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Publication number: 20150070907Abstract: An optical converter for producing colored or white light from blue excitation light is provided. The converter has good scattering properties to be able to produce nearly white light from the scattered blue light components and the scattered, converted yellow light components. The optical converter includes material including one or more of a YAG ceramic, a LuAG ceramic, and a magnesium-aluminum ceramic exhibiting strong scattering.Type: ApplicationFiled: April 25, 2014Publication date: March 12, 2015Applicant: SCHOTT AGInventors: Volker Hagemann, Peter Nass, Yvonne Menke, Bernd Hoppe, Wolfram Beier, Rainer Liebald, Niko Schultz, Guenter Weidmann, Hauke Esemann
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Patent number: 8869564Abstract: For permitting temperature manipulation of a melt even at a conductivity below 10?1 ??1 cm?1 and thus permitting refining of the melt at temperatures about 1700° C., the invention provides a method and a device for temperature manipulation of a melt (16), in particular in a refiner unit. The melt (16) is heated at least by ohmic resistance heating with at least two electrodes (4) that are arranged in the melt (16). At least a part of the melt (16) is cooled. The device (1) for temperature manipulation, refining, purification and homogenisation of a melt (16) comprises at least one arrangement for accommodating melt material (36, 16), defining an inner chamber, and at least two electrodes (4) for ohmic resistance heating of the melt (16). The electrodes (4) project into the inner chamber of the arrangement, in particular of a vessel (2).Type: GrantFiled: January 22, 2007Date of Patent: October 28, 2014Assignee: Schott AGInventors: Andreas Gross, Hildegard Roemer, Norbert Greulich-Hickmann, Guido Raeke, Guenter Weidmann, Thomas Stelle, Volker Ohmstede, Wolfgang Jost
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Patent number: 8869561Abstract: A device for the refining of a glass melt at high temperatures according to the skull pot principle is provided. The device includes a skull crucible having walls that are constructed from a plurality of pipes, a high-frequency coil for coupling electrical energy into the contents of the skull crucible, and an inlet and an outlet of the skull crucible being arranged in a melt surface region of the glass melt, wherein the inlet and the outlet are essentially arranged lying opposite one another.Type: GrantFiled: February 12, 2010Date of Patent: October 28, 2014Assignee: Schott AGInventors: Erich Rodek, Wolfgang Schmid-Bauer, Hilgegard Römer, Günter Weidmann, Werner Kiefer
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Patent number: 8661852Abstract: The present invention relates to a device and to a method for the continuous fining or homogenizing of inorganic matter, preferably low-viscosity glass melts in an apparatus. The device and method are distinguished in that the inclusion of bubbles and the occurrence of striations in the glass end product are significantly reduced or even entirely avoided when the melt contact surface of the apparatus has iridium or a high-iridium alloy as its material.Type: GrantFiled: December 4, 2006Date of Patent: March 4, 2014Assignee: Schott AGInventors: Michael Leister, Volker Ohmstede, Guenter Weidmann
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Publication number: 20130279532Abstract: An energy-efficient device for refining a glass melt to produce a glass and/or a glass ceramic is provided. The device includes a refining crucible defined at least by lateral walls with a metallic lining as a melt contact surface, so that a melt refining volume is defined by a base surface, a top surface and a circumferential surface; at least one heating device that conductively heats the lining by an electric current in the lining, so that the melt is heated through the lining, the heating device and the lining are connected to one another by a feeding device. The feeding device establishes contact with the lining so that an electric current runs from the top surface to the base surface or from the base surface to the top surface, at least in sections of the lining.Type: ApplicationFiled: October 13, 2011Publication date: October 24, 2013Applicant: SCHOTT AGInventors: Volker Ohmstede, Wolfgang Muench, Stefan Bauer, Holger Hunnius, Guenter Weidmann