Patents by Inventor Gunnar Schubert
Gunnar Schubert 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: 9543805Abstract: An axial bearing device includes an annular electrical sheet arrangement having individual sheets which protrude radially outward. In addition, an electrical coil is provided in the axial bearing device and is inserted into the electrical sheet arrangement to generate a magnetic field in the electrical sheet arrangement. The electric sheet arrangement includes at least two concentric electrical sheet rings. All adjacent electrical sheets of each electrical sheet ring substantially abut at the inner circumference of the respective electrical sheet ring.Type: GrantFiled: March 13, 2012Date of Patent: January 10, 2017Assignee: SIEMENS AKTIENGESELLSCHAFTInventors: Rolf Vollmer, Markus Oestreich, Gunnar Schubert
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Patent number: 8786152Abstract: The invention relates to a safety bearing for retaining a rotor shaft (4) of a machine (1), wherein the safety bearing (2) comprises a first carrier body (7) rotating about a virtual geometric center line (M) and roller bodies (5), wherein each roller body comprises a region (19) that is located between the center line (M) and the first carrier body (7), wherein the roller bodies (5) are each connected in a rotatable manner to the first carrier body (7) via a shaft (6). The invention creates a safety bearing (2) with which the likelihood of an occurrence of a backward-whirl is considerably reduced as compared to the safety bearings known from the prior art.Type: GrantFiled: June 28, 2010Date of Patent: July 22, 2014Assignee: Siemens AktiengesellschaftInventors: Gunnar Schubert, Hartmut Walter, Daniel Zülow
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Publication number: 20140028135Abstract: An axial bearing device includes an annular electrical sheet arrangement having individual sheets which protrude radially outward. In addition, an electrical coil is provided in the axial bearing device and is inserted into the electrical sheet arrangement to generate a magnetic field in the electrical sheet arrangement. The electric sheet arrangement includes at least two concentric electrical sheet rings. All adjacent electrical sheets of each electrical sheet ring substantially abut at the inner circumference of the respective electrical sheet ring.Type: ApplicationFiled: March 13, 2012Publication date: January 30, 2014Applicant: SIEMENS AKTIENGESELLSCHAFTInventors: Rolf Vollmer, Markus Oestreich, Gunnar Schubert
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Patent number: 8481419Abstract: A method for producing an electrically conducting metal contact on a semiconductor component having a coating on the surface of a semiconductor substrate. In order to keep transfer resistances low while maintaining good mechanical strength, the invention proposes applying a particle-containing fluid onto the coating, where the particles contain at least metal particles and glass frits, curing the fluid while simultaneously forming metal areas in the substrate through heat treatment, removing the cured fluid and the areas of the coating covered by the fluid, and depositing, for the purposes of forming the contact without using intermediate layers, electrically conducting material from a solution onto areas of the semiconductor component in which the coating is removed while at the same time conductively connecting the metal areas present in said areas on the substrate.Type: GrantFiled: November 26, 2009Date of Patent: July 9, 2013Assignee: SHOTT Solar AGInventors: Jorg Horzel, Gunnar Schubert, Stefan Dauwe, Peter Roth, Tobias Droste, Wilfried Schmidt, Ingrid Ernst
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Patent number: 8263176Abstract: A method for fabricating a photovoltaic element with stabilized efficiency is proposed. The method comprises the following steps: preparing a boron-doped, oxygen-containing silicon substrate; forming an emitter layer on a surface of the silicon substrate; and a stabilization treatment step. The stabilization treatment step comprises keeping the temperature of the substrate during a treatment time within a selectable temperature range having a lower temperature limit of 50° C., preferably 90° C., more preferably 130° C. and even more preferably 160° C. and an upper temperature limit of 230° C., preferably 210° C., more preferably 190° C. and even more preferably 180° C., and generating excess minority carriers in the silicon substrate during the treatment time, for example, by illuminating the substrate or by applying an external voltage. This method can be used to fabricate a photovoltaic element, e.g.Type: GrantFiled: March 21, 2007Date of Patent: September 11, 2012Assignee: Universität KonstanzInventors: Axel Herguth, Gunnar Schubert, Martin Käs, Giso Hahn, Ihor Melnyk
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Publication number: 20120181887Abstract: The invention relates to a safety bearing for retaining a rotor shaft (4) of a machine (1), wherein the safety bearing (2) comprises a first carrier body (7) rotating about a virtual geometric center line (M) and roller bodies (5), wherein each roller body comprises a region (19) that is located between the center line (M) and the first carrier body (7), wherein the roller bodies (5) are each connected in a rotatable manner to the first carrier body (7) via a shaft (6). The invention creates a safety bearing (2) with which the likelihood of an occurrence of a backward-whirl is considerably reduced as compared to the safety bearings known from the prior art.Type: ApplicationFiled: June 28, 2010Publication date: July 19, 2012Applicant: Siemens AktiengesellschaftInventors: Gunnar Schubert, Hartmut Walter, Daniel Zülow
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Patent number: 8063525Abstract: Disclosed is a retainer bearing (1) for retaining a rotor shaft of an electric machine. Said retainer bearing (1) comprises an outer bearing ring (2) and an inner bearing ring (5). At least one gliding element (7) which is preloaded in a radial direction of the retainer bearing (10) is inserted between the outer bearing ring (2) and the inner bearing ring (5).Type: GrantFiled: March 16, 2007Date of Patent: November 22, 2011Assignee: Siemens AktiengesellschaftInventors: Peter Petereit, Gunnar Schubert, Günther Siegl, Hartmut Walter
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Publication number: 20110201196Abstract: A method for producing an electrically conducting metal contact on a semiconductor component having a coating on the surface of a semiconductor substrate. In order to keep transfer resistances low while maintaining good mechanical strength, the invention proposes applying a particle-containing fluid onto the coating, where the particles contain at least metal particles and glass frits, curing the fluid while simultaneously forming metal areas in the substrate through heat treatment, removing the cured fluid and the areas of the coating covered by the fluid, and depositing, for the purposes of forming the contact without using intermediate layers, electrically conducting material from a solution onto areas of the semiconductor component in which the coating is removed while at the same time conductively connecting the metal areas present in said areas on the substrate.Type: ApplicationFiled: November 26, 2009Publication date: August 18, 2011Applicant: SCHOTT SOLAR AGInventors: Jorg Horzel, Gunnar Schubert, Stefan Dauwe, Peter Roth, Tobias Droste, Wilfried Schmidt, Ingrid Ernst
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Publication number: 20110162716Abstract: A method and device for fabricating a photovoltaic element with stabilized efficiency is proposed. The method comprises the following steps: preparing a boron-doped, oxygen-containing silicon substrate; forming an emitter layer on a surface of the silicon substrate; and a stabilization treatment step. The stabilization treatment step comprises keeping the temperature of the substrate during a treatment time within a selectable temperature range having a lower temperature limit of 50° C., preferably 90° C., more preferably 130° C. and even more preferably 160° C. and an upper temperature limit of 230° C., preferably 210° C., more preferably 190° C. and even more preferably 180° C., and generating excess minority carriers in the silicon substrate during the treatment time, for example, by illuminating the substrate or by applying an external voltage. This method can be used to fabricate a photovoltaic element, e.g.Type: ApplicationFiled: December 17, 2010Publication date: July 7, 2011Applicant: Universitat KonstanzInventors: Axel Herguth, Gunnar Schubert, Giso Hahn, Ihor Melnyk, Martin Käs
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Publication number: 20100243036Abstract: A method for fabricating a photovoltaic element with stabilised efficiency is proposed. The method comprises the following steps: preparing a boron-doped, oxygen-containing silicon substrate; forming an emitter layer on a surface of the silicon substrate; and a stabilisation treatment step. The stabilisation treatment step comprises keeping the temperature of the substrate during a treatment time within a selectable temperature range having a lower temperature limit of 50° C., preferably 90° C., more preferably 130° C. and even more preferably 160° C. and an upper temperature limit of 230° C., preferably 210° C., more preferably 190° C. and even more preferably 180° C., and generating excess minority carriers in the silicon substrate during the treatment time, for example, by illuminating the substrate or by applying an external voltage. This method can be used to fabricate a photovoltaic element, e.g.Type: ApplicationFiled: March 21, 2007Publication date: September 30, 2010Applicant: Universitat KonstanzInventors: Axel Herguth, Gunnar Schubert, Martin Käs, Giso Hahn, Ihor Melnyk
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Publication number: 20090091203Abstract: Disclosed is a retainer bearing (1) for retaining a rotor shaft of an electric machine. Said retainer bearing (1) comprises an outer bearing ring (2) and an inner bearing ring (5). At least one gliding element (7) which is preloaded in a radial direction of the retainer bearing (10) is inserted between the outer bearing ring (2) and the inner bearing ring (5).Type: ApplicationFiled: March 16, 2007Publication date: April 9, 2009Applicant: Siemens AktiengesellschaftInventors: Peter Petereit, Gunnar Schubert, Gunther Siegl, Hartmut Walter