Patents by Inventor Roland Dudek
Roland Dudek 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: 11724960Abstract: A transparent colored glass ceramic, in particular an LAS glass ceramic, suitable for use as a cooking surface is provided. The transparent colored glass ceramic includes high-quartz solid solution (HQ s.s.) as a main crystal phase and exhibits thermal expansion of ?1 to +1 ppm/Kin the range from 20° C. to 700° C. The glass ceramic has from 3.0 to 3.6 percent by weight of lithium oxide (Li2O) as constituents and either is colored with 0.003 to 0.05 percent by weight of vanadium oxide (V2O5) or is colored with 0.003 to 0.25 percent by weight of molybdenum oxide (MoO3).Type: GrantFiled: June 22, 2021Date of Patent: August 15, 2023Assignee: SCHOTT AGInventors: Evelin Weiss, Meike Schneider, Oliver Hochrein, Friedrich Siebers, Roland Dudek, Martin Mueller, Matthias Bockmeyer, Birgit Doerk
-
Publication number: 20210403365Abstract: Sheet-like glass ceramic article are provided that include surfaces with a thickness between the surfaces between 0.5 mm and 1.9 mm and a core. The articles have a first microstructure provided on each of the surfaces and have a second microstructure in the core with a second thickness (d2). The first microstructures extend inwardly from the surfaces towards the core and has a first thickness (d1). The first microstructure has a difference from the second microstructure selected from a group consisting of: a crystalline phase type, a crystalline phase amount, crystalline phase size distribution, crystalline phase orientation, crystalline phases composition, crystalline inclusion, an amorphous phase type, an amorphous phase percentage amount, an amorphous phase composition, and any combinations thereof. The difference results in a first coefficient of linear thermal expansion of the first microstructure that is smaller than a second coefficient of linear thermal expansion of the second microstructure.Type: ApplicationFiled: June 30, 2021Publication date: December 30, 2021Applicant: SCHOTT AGInventors: Falk Gabel, Roland Dudek, Evelin Weiss
-
Publication number: 20210317033Abstract: A transparent colored glass ceramic, in particular an LAS glass ceramic, suitable for use as a cooking surface is provided. The transparent colored glass ceramic includes high-quartz solid solution (HQ s.s.) as a main crystal phase and exhibits thermal expansion of ?1 to +1 ppm/Kin the range from 20° C. to 700° C. The glass ceramic has from 3.0 to 3.6 percent by weight of lithium oxide (Li2O) as constituents and either is colored with 0.003 to 0.05 percent by weight of vanadium oxide (V2O5) or is colored with 0.003 to 0.25 percent by weight of molybdenum oxide (MoO3).Type: ApplicationFiled: June 22, 2021Publication date: October 14, 2021Applicant: SCHOTT AGInventors: Evelin Weiss, Meike Schneider, Oliver Hochrein, Friedrich Siebers, Roland Dudek, Martin Mueller, Matthias Bockmeyer, Birgit Doerk
-
Patent number: 11072557Abstract: A transparent colored glass ceramic, in particular an LAS glass ceramic, suitable for use as a cooking surface is provided. The transparent colored glass ceramic includes high-quartz solid solution (HQ s.s.) as a main crystal phase and exhibits thermal expansion of ?1 to +1 ppm/K in the range from 20° C. to 700° C. The glass ceramic has from 3.0 to 3.6 percent by weight of lithium oxide (Li2O) as constituents and either is colored with 0.003 to 0.05 percent by weight of vanadium oxide (V2O5) or is colored with 0.003 to 0.25 percent by weight of molybdenum oxide (MoO3).Type: GrantFiled: December 20, 2018Date of Patent: July 27, 2021Assignee: SCHOTT AGInventors: Evelin Weiss, Meike Schneider, Oliver Hochrein, Friedrich Siebers, Roland Dudek, Martin Mueller, Matthias Bockmeyer, Birgit Doerk
-
Publication number: 20190194060Abstract: A transparent colored glass ceramic, in particular an LAS glass ceramic, suitable for use as a cooking surface is provided. The transparent colored glass ceramic includes high-quartz solid solution (HQ s.s.) as a main crystal phase and exhibits thermal expansion of ?1 to +1 ppm/K in the range from 20° C. to 700° C. The glass ceramic has from 3.0 to 3.6 percent by weight of lithium oxide (Li2O) as constituents and either is colored with 0.003 to 0.05 percent by weight of vanadium oxide (V2O5) or is colored with 0.003 to 0.25 percent by weight of molybdenum oxide (MoO3).Type: ApplicationFiled: December 20, 2018Publication date: June 27, 2019Applicant: SCHOTT AGInventors: Evelin Weiss, Meike Schneider, Oliver Hochrein, Friedrich Siebers, Roland Dudek, Martin Mueller, Matthias Bockmeyer, Birgit Doerk
-
Glass ceramic substrate made of a transparent, colored LAS glass ceramic and method for producing it
Patent number: 10183888Abstract: A glass ceramic substrate made of a transparent, colored LAS glass ceramic is provided. The glass ceramic has a gradient layer with keatite solid solution and an underlying core with high-quartz solid solution as predominant crystal phase. The keatite solid solution in a depth of 10 ?m or greater exceeds 50% of the sum of the high-quartz solid solution proportion and keatite solid solution proportion. The ceramization includes a crystal transformation step, in which the high-quartz solid solution is transformed at a maximum temperature in the range of 910° to 980° and a time period of between 1 and 25 minutes in part into the keatite solid solution.Type: GrantFiled: December 23, 2015Date of Patent: January 22, 2019Assignee: SCHOTT AGInventors: Falk Gabel, Oliver Hochrein, Evelin Weiss, Roland Dudek, Uwe Martens -
Publication number: 20170215236Abstract: A cooktop is provided that has a glass ceramic cooking plate, at least one heater arranged below the glass ceramic cooking plate, and at least one touch sensor. The touch sensor is operable across the glass ceramic cooking plate for adjusting the power of the at least one heater. The glass ceramic cooking plate has an increased strength and is therefore produced with a reduced thickness, whereby the sensitivity and reliability of the touch sensor is significantly improved.Type: ApplicationFiled: January 20, 2017Publication date: July 27, 2017Applicant: SCHOTT AGInventors: Birgit Doerk, Matthias Bockmeyer, Thomas Zenker, Evelin Weiss, Gerold Ohl, Martin Taplan, Roland Dudek, Sascha Backes
-
Publication number: 20170215231Abstract: A cooktop is provided that includes a glass ceramic cooking plate that exhibits enhanced mechanical strength and at the same time increased spectral transmittance in the infrared range. The glass ceramic cooking plate makes it possible to detect, through the glass ceramic cooking plate, the temperature of a piece of cookware placed thereon using an infrared sensor, and to perform an automated cooking process in response thereto.Type: ApplicationFiled: January 20, 2017Publication date: July 27, 2017Applicant: SCHOTT AGInventors: Birgit Doerk, Matthias Bockmeyer, Thomas Zenker, Evelin Weiss, Gerold Ohl, Martin Taplan, Roland Dudek, Sasha Backes
-
Publication number: 20160264455Abstract: Substrates of glass or glass ceramic are disclosed which are coated with decorations, also methods for preparing such coatings are disclosed, wherein the decorations are optimized with respect to their acoustic characteristics in such a way that in particular when displacing cookware on induction cooking surfaces the subjective noise feeling is minimized, as possible.Type: ApplicationFiled: March 10, 2016Publication date: September 15, 2016Applicant: SCHOTT AGInventors: Urban WEBER, Silke KNOCHE, Roland DUDEK, Thomas KORB, Stephan CORVERS
-
Glass ceramic substrate made of a transparent, colored LAS glass ceramic and method for producing it
Publication number: 20160176752Abstract: A glass ceramic substrate made of a transparent, colored LAS glass ceramic is provided. The glass ceramic has a gradient layer with keatite solid solution and an underlying core with high-quartz solid solution as predominant crystal phase. The keatite solid solution in a depth of 10 ?m or greater exceeds 50% of the sum of the high-quartz solid solution proportion and keatite solid solution proportion. The ceramization includes a crystal transformation step, in which the high-quartz solid solution is transformed at a maximum temperature in the range of 910° to 980° and a time period of between 1 and 25 minutes in part into the keatite solid solution.Type: ApplicationFiled: December 23, 2015Publication date: June 23, 2016Applicant: SCHOTT AGInventors: Falk Gabel, Oliver Hochrein, Evelin Weiss, Roland Dudek, Uwe Martens -
Patent number: 8993464Abstract: The invention relates to a glass ceramic comprising article, wherein the integral, non-post-processed and non-reworked glass ceramic comprising article comprises at least three different types of microstructures. The microstructures differ in the number and/or size of the crystallites contained per unit volume, and/or in the composition of the crystallites, and/or in the composition of the residual glass phases. The different microstructures are characterized by different relative ion content profiles across a cross-section perpendicular to the transition areas. The relative ion content profiles are determined from intensities which are determined using secondary ion mass spectrometry, and each of the three different types of microstructures preferably has different intensity plateaus for individual ions, wherein the individual ions are components of the main crystal phases.Type: GrantFiled: July 13, 2010Date of Patent: March 31, 2015Assignee: Schott AGInventors: Falk Gabel, Eveline Rudigier-Voigt, Christian Henn, Roland Leroux, Lorenz Strenge, Roland Dudek
-
Publication number: 20130316142Abstract: In order to obtain glass or glass ceramic materials having increased strength, a method is provided for producing glass or glass ceramic articles, which comprises: producing an initial glass body, mounting the initial glass body on a gas cushion between a levitation support and the initial glass body, and at least partially ceramizing the initial glass body on the levitation support. The levitation support comprises at least one continuous surface region having at least one gas feed region where levitation gas for the gas cushion is fed out from the levitation support, and at least one gas discharge region where gas from the gas cushion is at least partially discharged into the levitation support.Type: ApplicationFiled: July 25, 2013Publication date: November 28, 2013Applicant: Schott AGInventors: Sybill Nuettgens, Wolfgang Schmidbauer, Roland Dudek, Friedrich Georg Schroeder, Gerhard Hahn, Markus Borrmann, Helga Goetz
-
Patent number: 8516851Abstract: In order to obtain glass or glass ceramic materials having increased strength, the invention provides a method for producing glass or glass ceramic articles, which comprises the steps: producing an initial glass body (11), mounting the initial glass body (11) on a gas cushion (13) between a levitation support (1) and the initial glass body (11), and at least partially ceramizing the initial glass body (11) on the levitation support (1). The levitation support comprises at least one continuous surface region (3) having at least one gas feed region (151, 152, 153) where levitation gas for the gas cushion (13) is fed out from the levitation support, and at least one gas discharge region (171 172, 173) where gas from the gas cushion (13) is at least partially discharged into the levitation support.Type: GrantFiled: December 9, 2005Date of Patent: August 27, 2013Assignee: Schott AGInventors: Sybill Nuettgens, Wolfgang Schmidbauer, Roland Dudek, Friedrich Georg Schroeder, Gerhard Hahn, Markus Borrmann, Helga Goetz
-
Publication number: 20120157290Abstract: The invention relates to a glass ceramic comprising article, wherein the integral, non-post-processed and non-reworked glass ceramic comprising article comprises at least three different types of microstructures. The microstructures differ in the number and/or size of the crystallites contained per unit volume, and/or in the composition of the crystallites, and/or in the composition of the residual glass phases. The different microstructures are characterized by different relative ion content profiles across a cross-section perpendicular to the transition areas. The relative ion content profiles are determined from intensities which are determined using secondary ion mass spectrometry, and each of the three different types of microstructures preferably has different intensity plateaus for individual ions, wherein the individual ions are components of the main crystal phases.Type: ApplicationFiled: July 13, 2010Publication date: June 21, 2012Applicant: SCHOTT AGInventors: Falk Gabel, Eveline Rudigier-Voigt, Christian Henn, Roland Leroux, Lorenz Strenge, Roland Dudek
-
Publication number: 20090155533Abstract: In order to obtain glass or glass ceramic materials having increased strength, the invention provides a method for producing glass or glass ceramic articles, which comprises the steps: producing an initial glass body (11), mounting the initial glass body (11) on a gas cushion (13) between a levitation support (1) and the initial glass body (11), and at least partially ceramizing the initial glass body (11) on the levitation support (1). The levitation support comprises at least one continuous surface region (3) having at least one gas feed region (151, 152, 153) where levitation gas for the gas cushion (13) is fed out from the levitation support, and at least one gas discharge region (171 172, 173) where gas from the gas cushion (13) is at least partially discharged into the levitation support.Type: ApplicationFiled: December 9, 2005Publication date: June 18, 2009Applicant: SCHOTT AGInventors: Sybill Nuettgens, Wolfgang Schmidbauer, Roland Dudek, Friedrich Georg Schroeder, Gerhard Hahn, Markus Borrmann, Helga Goetz
-
Patent number: 6821628Abstract: The cooking panel is made from an opaque glass-ceramic material uniformly colored throughout and having keatite mixed crystals as the predominant crystalline phase. The cooking panel is made by ceramicizing a ceramicizable glass or a transparent glass-ceramic with high quartz mixed crystals as the predominant crystalline phase in a definite color location range with a brightness parameter value (L*) less than 85 and a color shade and chromaticity according to its later service and wear pattern. The cooking panel makes deposited material, such as dirt and the like, less conspicuous.Type: GrantFiled: December 9, 1999Date of Patent: November 23, 2004Assignee: Schott GlasInventors: Bernd Schultheis, Waldemar Weinberg, Monica Cotlear De Witzmann, Roland Dudek, Friedrich Siebers, Klaus Schoenberger
-
Patent number: 6515263Abstract: There is disclosed a stove, with a smooth-top cooktop, for cooking food, the stove comprising: a stove body; a smooth-top cooktop to cook food thereon; and at least one heat source disposed adjacent to a cooking surface of said cooktop. The cooktop comprises glass ceramic with an upper layer and an inner layer, with the upper layer comprising a different glass ceramic material than the inner layer. The upper layer is configured to minimize surface defects such as fissures, cracks, pits, and pores. The inner layer is configured to provide resistance to impact to the upper layer from cooking utensils being dropped onto the upper layer of the smooth-top cooktop, and at least the inner layer of the glass ceramic being configured to obscure visibility of the at least one heat source, through the upper layer of the glass ceramic.Type: GrantFiled: July 3, 2001Date of Patent: February 4, 2003Assignee: Schott GlasInventors: Ina Mitra, Friedrich Siebers, Otmar Becker, Andreas Schminke, Bernd Rudinger, Christian Roos, Evelin Weiss, Roland Dudek, Erich Rodek, Friedrich-Georg Schroder
-
Publication number: 20020058117Abstract: The cooking panel is made from an opaque glass-ceramic material uniformly colored throughout and having keatite mixed crystals as the predominant crystalline phase, which is ceramicized with a ceramicizable glass or a transparent glass-ceramic with high quartz mixed crystals as the predominant crystalline phase in a definite color location range according to its later service and wear pattern. The cooking panel makes deposited material, such as dirt and the like, less conspicuous.Type: ApplicationFiled: December 9, 1999Publication date: May 16, 2002Inventors: BERND SCHULTHEIS, WALDEMAR WEINBERG, MONICA COTLEAR DE WITZMANN, ROLAND DUDEK, FRIEDRICH SIEBERS, KLAUS SCHOENBERGER
-
Publication number: 20020026932Abstract: There is disclosed a stove, with a smooth-top cooktop, for cooking food, the stove comprising: a stove body; a smooth-top cooktop to cook food thereon; and at least one heat source disposed adjacent to a cooking surface of said cooktop. The cooktop comprises glass ceramic with an upper layer and an inner layer, with the upper layer comprising a different glass ceramic material than the inner layer. The upper layer is configured to minimize surface defects such as fissures, cracks, pits, and pores. The inner layer is configured to provide resistance to impact to the upper layer from cooking utensils being dropped onto the upper layer of the smooth-top cooktop, and at least the inner layer of the glass ceramic being configured to obscure visibility of the at least one heat source, through the upper layer of the glass ceramic.Type: ApplicationFiled: July 3, 2001Publication date: March 7, 2002Inventors: Ina Mitra, Friedrich Siebers, Otmar Becker, Andreas Schminke, Bernd Rudinger, Christian Roos, Evelin Weiss, Roland Dudek, Erich Rodek, Friedrich-Georg Schroder
-
Patent number: 6319612Abstract: Glass or glass ceramic plates with elevated thermal resistance and process for their production. After cooling, the glass or glass ceramic plates are subjected to zone annealing, whereby the plates are divided into two zones in which annealing is done at respectively different temperatures, and whereby the zones with the elevated temperature correspond, during annealing, to the sub-areas of the finished glass or glass ceramic plates in which compression stress builds up after uneven heating corresponding to the respective specific application of the glass or glass ceramic plates. The glass or glass ceramic plates that are obtained are thus characterized in that they are divided into two sub-areas, whereby one sub-area exhibits structural compression and the other sub-area exhibits compression stress. Glass or glass ceramic plates that are resistant to breakage that is caused by uneven heating result.Type: GrantFiled: February 16, 1999Date of Patent: November 20, 2001Assignee: Schott GlasInventors: Peter Nass, Roland Dudek, Juergen Naubik