Patents by Inventor Stefan Klein
Stefan Klein 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: 20190240600Abstract: The invention relates to a filter device, in particular for lubri¬cating oil filtration, comprising at least two filter inserts (27), in each of which a filter material (43) is accommodated, which are provided with fluid passage points (37, 39) and can be stacked on top of one another with the formation of a stack, and further comprising a back-flushing device (55,57) which is movably arranged along the inner side of the filter inserts (27). The invention is characterized in that the individual filter inserts (27) are designed as identical parts at least with respect to their housings.Type: ApplicationFiled: October 9, 2017Publication date: August 8, 2019Inventors: Hans-Juergen LINGEN, Stefan KLEIN, Raphael KLEIN, Markus BREINIG
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Publication number: 20190096611Abstract: A safety switch device configured to perform at least one of connecting a load to a power supply and disconnecting the load from the power supply is provided. The safety switch device comprises a first set of two serially connected controllable switching elements; a safety circuit to verify a switching state of the first set of two switching elements, wherein each switching element of the first set of two switching elements is configured as a toggle; a control circuit configured to provide a test signal to the safety circuit; and decoupling means configured to galvanically decouple the load circuit from the control circuit. The decoupling means comprise a transformer, and the control circuit comprises a transformer driver configured to provide the test signal to the safety circuit via the transformer.Type: ApplicationFiled: August 31, 2018Publication date: March 28, 2019Inventors: Rudolf Papenbreer, Stefan Klein
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Publication number: 20180339946Abstract: A method for producing the component, and to the use of the component. The method for producing a three-dimensional, ceramic component containing silicon carbide, by a) providing a powdery composition having a grain size (d50) between 3 microns and 500 microns and comprising at least 50 wt % of coke, b) providing a liquid binder, c) depositing a layer of the material provided in a) in a planar manner and locally depositing drops of the material provided in b) onto said layer and repeating step c), the local depositing of the drops in the subsequent repetitions of the step is adapted in accordance with the desired shape of the component to be produced, d) at least partially curing or drying the binder and obtaining a green body having the desired shape of the component, e) carbonising the green body, and 0 siliconising the carbonised green body by infiltration with liquid silicon.Type: ApplicationFiled: November 24, 2016Publication date: November 29, 2018Applicant: SGL CARBON SEInventors: Oswin ÖTTINGER, Dominik RIVOLA, Stefan KLEIN, Andreas KIENZLE, Ingrid KRÄTSCHMER
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Patent number: 9815345Abstract: Transformation method of hybrid transportation vehicle for ground and air includes the following transformation and reciprocal steps: Tilting the compensation cover (7) on. Expansion of both whole wings (1) from the transportation vehicle longitudinal position around two vertical axes (2) into the flying position. Expansion of rear parts of wings (1) from the top front parts of wings (1) into the spread flying position by tilting the rear of each wing (1) around a horizontal axis (3). The take-off and landing tilting of wings (1) by an angle of attack alpha=0 to 40° of the wings onset. Front wheels track (5) is reduced by axially shifting the front wheels (5) towards the fuselage. Furthermore, a corresponding hybrid transportation vehicle for ground and air is described which contains reciprocal transformation mechanisms for transformation from a sterling double or four-track automobile into a sterling aircraft for take-off and landing on the ground or water, and vice versa.Type: GrantFiled: December 14, 2016Date of Patent: November 14, 2017Assignee: AEROMOBIL, S.R.O.Inventor: Stefan Klein
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Publication number: 20170305527Abstract: A central wing panel for a hybrid transportation vehicle for ground and air transportation configured to enable transitioning between an air mode and a ground mode. The central wing panel has a front frame section and a rear frame section connected by one or more cross members. The central wing panel is configured to rotate enabling adjustment of an angle of attack of the vehicle. The rear frame section is configured to rotate enabling coupling and uncoupling of the rear frame section from a first wing and a second wing for transitioning between the air mode and the ground mode. The central wing panel is also configured to allow rotation of ailerons and flaps so that they fold over onto the top front portion of the wings.Type: ApplicationFiled: October 8, 2015Publication date: October 26, 2017Applicant: Aeromobil, S.R.O.Inventor: Stefan KLEIN
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Publication number: 20170297395Abstract: Transformation method of hybrid transportation vehicle for ground and air includes the following transformation and reciprocal steps: Tilting the compensation cover (7) on. Expansion of both whole wings (1) from the transportation vehicle longitudinal position around two vertical axes (2) into the flying position. Expansion of rear parts of wings (1) from the top front parts of wings (1) into the spread flying position by tilting the rear of each wing (1) around a horizontal axis (3). The take-off and landing tilting of wings (1) by an angle of attack alpha=0 to 40° of the wings onset. Front wheels track (5) is reduced by axially shifting the front wheels (5) towards the fuselage. Furthermore, a corresponding hybrid transportation vehicle for ground and air is described which contains reciprocal transformation mechanisms for transformation from a sterling double or four-track automobile into a sterling aircraft for take-off and landing on the ground or water, and vice versa.Type: ApplicationFiled: December 14, 2016Publication date: October 19, 2017Applicant: AeroMobil, S.R.O.Inventor: Stefan Klein
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Publication number: 20170297605Abstract: A directional control system for a hybrid transportation vehicle for ground and air transportation. The vehicle has at least one steerable wheel for use in ground operation, the wheel being connected to a steering mechanism, wings having moveable control surfaces, and a tail having a moveable control surface. The system has a first shaft having a first control input at one end, wherein the first shaft is linked to the steering mechanism and a second shaft that extends through the first shaft and is independently rotatable and slidable with respect to the first shaft. The second shaft has a second control input at one end, a first linkage configured to transmit a rotational movement of the second shaft to control the moveable control surfaces on the wings, and a second linkage configured to transmit an axial movement of the second shaft to control the moveable control surface on the tail.Type: ApplicationFiled: September 8, 2015Publication date: October 19, 2017Applicant: Aeromobil, S.R.O.Inventor: Stefan KLEIN
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Patent number: 9140256Abstract: An electric motor includes an armature shaft which is mounted in at least one floating bearing. The floating bearing comprises a bearing inner ring, which is positioned on the armature shaft, a bearing outer ring, which is received in a bearing seat, and a fluid pump for a vehicle fluid system having the electric motor. Lubricant disposed between the armature shaft and the bearing inner ring forms a hydrodynamic lubricant film and generates a constant relative movement between the armature shaft and the bearing inner ring.Type: GrantFiled: September 27, 2012Date of Patent: September 22, 2015Assignee: Robert Bosch GmbHInventors: Marc Micke, Reiner Fellmeth, Stefan Klein
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Patent number: 9062623Abstract: A method is described for diagnosing a heatable exhaust gas sensor of an internal combustion engine, in which a predefined chronologically varying or constant voltage or a predefined chronologically varying or constant current is generated with the aid of a voltage source, the voltage or the current is applied to terminals of the exhaust gas sensor, a current or applied voltage, which flows through the voltage source when the voltage or the current is applied, is detected, and the current or the voltage is analyzed to diagnose the exhaust gas sensor.Type: GrantFiled: June 30, 2010Date of Patent: June 23, 2015Assignee: ROBERT BOSCH GMBHInventors: Cyril Verdier, Stefan Klein, Gerhard Lemke, Karsten Glashoff, Peter Brida, Frank Meier, Thomas Seiler
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Publication number: 20150028150Abstract: Transformation method of hybrid transportation vehicle for ground and air includes the following transformation and reciprocal steps: Tilting the compensation cover (7) on. Expansion of both whole wings (1) from the transportation vehicle longitudinal position around two vertical axes (2) into the flying position. Expansion of rear parts of wings (1) from the top front parts of wings (1) into the spread flying position by tilting the rear of each wing (1) around a horizontal axis (3). The take-off and landing tilting of wings (1) by an angle of attack alpha=0 to 40° of the wings onset. Front wheels track (5) is reduced by axially shifting the front wheels (5) towards the fuselage. Furthermore, a corresponding hybrid transportation vehicle for ground and air is described which contains reciprocal transformation mechanisms for transformation from a sterling double or four-track automobile into a sterling aircraft for take-off and landing on the ground or water, and vice versa.Type: ApplicationFiled: August 22, 2012Publication date: January 29, 2015Inventor: Stefan Klein
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Patent number: 8895842Abstract: A method and apparatus for forming solar cells is provided. In one embodiment, a photovoltaic device includes a first TCO layer disposed on a substrate, a second TCO layer disposed on the first TCO layer, and a p-type silicon containing layer formed on the second TCO layer. In another embodiment, a method of forming a photovoltaic device includes forming a first TCO layer on a substrate, forming a second TCO layer on the first TCO layer, and forming a first p-i-n junction on the second TCO layer.Type: GrantFiled: June 9, 2009Date of Patent: November 25, 2014Assignee: Applied Materials, Inc.Inventors: Shuran Sheng, Yong Kee Chae, Stefan Klein, Amir Al-Bayati, Bhaskar Kumar
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Publication number: 20140314349Abstract: An electric motor includes an armature shaft which is mounted in at least one floating bearing. The floating bearing comprises a bearing inner ring, which is positioned on the armature shaft, a bearing outer ring, which is received in a bearing seat, and a fluid pump for a vehicle fluid system having the electric motor. Lubricant disposed between the armature shaft and the bearing inner ring forms a hydrodynamic lubricant film and generates a constant relative movement between the armature shaft and the bearing inner ring.Type: ApplicationFiled: September 27, 2012Publication date: October 23, 2014Inventors: Marc Micke, Reiner Fellmeth, Stefan Klein
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Patent number: 8664522Abstract: A thin film solar cell is disclosed comprising the following layers deposited on a substrate: a microcrystalline p- or n-layer, an intermediate microcrystalline silicon i-layer applied by a hot-wire chemical-vapor deposition (HWCVD) method on the microcrystalline p- or n-layer a), an additional i-layer of microcrystalline silicon, which is formed by depositing on the intermediate microcrystalline silicon i-layer, by a plasma enhanced chemical vapor deposition (PECVD), a sputtering process, or a photo-CVD method whereby layers b) and c) together form an i-layer, and if a p-layer is present as the layer of step a), an n-layer, and if an n-layer is present as the layer of step a), a p-layer that is either microcrystalline or amorphous.Type: GrantFiled: November 1, 2011Date of Patent: March 4, 2014Assignee: Forschungszentrum Julich GmbHInventors: Stefan Klein, Yaohua Mai, Friedhelm Finger, Reinhard Carius
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Patent number: 8320237Abstract: A method for minimizing bandwidth allocation for alternative routes within a network provides a management system for managing routes of services, provides a plurality of guaranteed bandwidth (GWB) services, assigns to each GBW-service a traffic class (TC), and calculates for each GBW-service of a protected TC an active route and an alternative route. The active route is a planned route in case of absence of a respective network failure and the alternative route is the route which guarantees that, in case of a network failure with respect to the active route, the GBW-service is protected. Further, a first optimized protection mode is provided to be assigned to all the GBW-services belonging to a given protected TC. The first optimized protection mode has a first optimization step including reserving bandwidth for each GBW-service only once for each network resource employed by the active and/or the alternative route of each GBW-service.Type: GrantFiled: August 21, 2006Date of Patent: November 27, 2012Assignee: Nokia Siemens Networks GmbH & Co. KGInventors: Michael Frantz, Joao Filipe, Stefan Klein
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Publication number: 20120285522Abstract: Method of depositing a TCO layer on a substrate, of depositing precursors of a solar cell and precursors of a solar cell are described. The methods includes DC sputtering a ZnO-containing transparent conductive oxide layer over the substrate, the substrate having a size of 1.4 m2 or above and texturing the ZnO-containing transparent conductive oxide layer, wherein the textured ZnO-containing transparent conductive oxide layer has a root means square roughness of 60 nm or below.Type: ApplicationFiled: May 10, 2012Publication date: November 15, 2012Applicant: Applied Materials, Inc.Inventors: Elisabeth Sommer, Philipp Obermeyer, Thomas Zilbauer, Inge Vermeir, Daniel Severin, Niels Kuhr, Markus Kress, Christof Kurthen, Ursula Ingeborg Schmidt, Stefan Klein, Susanne Buschbaum, Konrad Schwanitz, Christian Stoemmer, Tobias Stolley, Martin Rohde, Andreas Rembeck
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Publication number: 20120167656Abstract: A method is described for diagnosing a heatable exhaust gas sensor of an internal combustion engine, in which a predefined chronologically varying or constant voltage or a predefined chronologically varying or constant current is generated with the aid of a voltage source, the voltage or the current is applied to terminals of the exhaust gas sensor, a current or applied voltage, which flows through the voltage source when the voltage or the current is applied, is detected, and the current or the voltage is analyzed to diagnose the exhaust gas sensor.Type: ApplicationFiled: June 30, 2010Publication date: July 5, 2012Applicant: ROBERT BOSCH GMBHInventors: Cyril Verdier, Stefan Klein, Gerhard Lemke, Karsten Glashoff, Peter Brida, Frank Meier, Thomas Seiler
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Publication number: 20120080081Abstract: A method of manufacturing a layer stack adapted for a thin-film solar cell is and a precursor for a solar cell are described. The method includes depositing a TCO layer over a transparent substrate, depositing a first conductive-type layer a first p-i-n junction configured for the solar cell, depositing a first intrinsic-type layer of a first p-i-n junction configured for the solar cell and depositing a further conductive-layer with a conductivity opposite to the first conductive-type layer first p-i-n junction configured for the solar cell. The method further includes providing for a SiOx-containing intermediate layer by chemical vapor deposition and depositing a second p-i-n junction configured for the solar cell, wherein the SiOx-containing intermediate layer is provided within the a further conductive-type layer, and wherein the SiOx-containing layer has a thickness of 17 nm or less.Type: ApplicationFiled: October 12, 2010Publication date: April 5, 2012Applicant: APPLIED MATERIALS, INC.Inventors: Stefan KLEIN, Tobias STOLLEY, Susanne Buschbaum, Martin Rohde, Konrad Schwanitz, Christian Stoemmer
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Publication number: 20120067411Abstract: A thin film solar cell is disclosed comprising the following layers deposited on a substrate: a microcrystalline p- or n-layer, an intermediate microcrystalline silicon i-layer applied by a hot-wire chemical-vapor deposition (HWCVD) method on the microcrystalline p- or n-layer a), an additional i-layer of microcrystalline silicon, which is formed by depositing on the intermediate microcrystalline silicon i-layer, by a plasma enhanced chemical vapor deposition (PECVD), a sputtering process, or a photo-CVD method whereby layers b) and c) together form an i-layer, and if a p-layer is present as the layer of step a), an p-layer, and if an n-layer is present as the layer of step a), a p-layer that is either microcrystalline or amorphous.Type: ApplicationFiled: November 1, 2011Publication date: March 22, 2012Inventors: Stefan KLEIN, Yaohua MAI, Friedhelm FINGER, Reinhard CARIUS
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Publication number: 20120056290Abstract: A method of manufacturing a layer stack adapted for a thin-film solar cell and a precursor for a solar cell are described. The method includes depositing a TCO layer over a transparent substrate, depositing a first conductive-type layer, wherein the depositing includes: providing for a first SiOx-containing anti-reflection layer by chemical vapor deposition. The method further includes depositing a first intrinsic-type layer and depositing a further conductive-type layer with a conductivity opposite to the first conductive-type layer.Type: ApplicationFiled: September 9, 2010Publication date: March 8, 2012Applicant: APPLIED MATERIALS, INC.Inventors: Stefan KLEIN, Konrad SCHWANITZ, Tobias STOLLEY
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Patent number: 8110246Abstract: The invention relates to a method for production of a thin-layer solar cell with microcrystalline silicon and a layer sequence. According to the invention, a microcrystalline silicon layer is applied to the lower p- or n-layer in pin or nip thin-layer solar cells, by means of a HWCVD method before the application of the microcrystalline i-layer. The efficiency of the solar cell is hence increased by up to 0.8% absolute.Type: GrantFiled: December 13, 2005Date of Patent: February 7, 2012Assignee: Forschungszentrum Julich GmbHInventors: Stefan Klein, Yaohua Mai, Friedhelm Finger, Reinhard Carius