Patents Assigned to Universitaet Stuttgart
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Patent number: 11745246Abstract: Method for producing a component system having a first component with a first component portion and a second component with a second component portion, including the following steps: connecting, in particular welding or soldering, the first component portion, which consists of an aluminum alloy, to the second component portion, which in particular consists of a naturally aged aluminum alloy, a copper alloy or an iron alloy, in particular a steel alloy, so as to form a connection seam; artificially aging the connection seam such that the yield strength of the connection seam is above the yield strength of the first component portion and/or of the second component portion; and deforming, in particular deep-drawing and/or stretch-drawing, the component system.Type: GrantFiled: September 12, 2018Date of Patent: September 5, 2023Assignee: UNIVERSITAET STUTTGARTInventors: Martin Werz, Stefan Weihe, Lisa Ehemann
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Patent number: 11697201Abstract: An exoskeleton system includes a first exoskeleton unit configured to support a first body part, a second exoskeleton unit configured to support a second body part, and a control device. The first exoskeleton unit and the second exoskeleton unit are mechanically decoupled from each other. The control device is configured to control, based on a control model, at least one of the first exoskeleton unit and the second exoskeleton unit. The control model is based on a multibody system that models the first exoskeleton unit, the second exoskeleton unit, and at least one of the first body part and the second body part.Type: GrantFiled: May 9, 2020Date of Patent: July 11, 2023Assignee: Universitaet StuttgartInventors: Joerg Siegert, Urs Schneider
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Patent number: 11407060Abstract: A counter support for friction stir welding, which makes it possible to also produce very long weld seams by friction stir welding despite a very compact design, is shown. Curved components and nn-straight weld seams may also be produced.Type: GrantFiled: May 14, 2019Date of Patent: August 9, 2022Assignee: UNIVERSITAET STUTTGARTInventors: Martin Werz, Stefan Weihe, Florian Panzer
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Publication number: 20210277998Abstract: The invention relates to a device for sealing an object to be sealed, in particular for sealing a rotating shaft, which device has a sealing body, which has a sealing side facing the object to be sealed and a back side facing away from the object to be sealed. On the back side, the sealing body has at least one element that changes the stiffness of the sealing body, which element changes the contact pressure between the sealing body and the object to be sealed.Type: ApplicationFiled: November 23, 2017Publication date: September 9, 2021Applicant: Universitaet StuttgartInventors: Lothar Hoerl, Nino Dakov, Mario Stoll, Frank Bauer
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Patent number: 11014747Abstract: An automated guided vehicle for assembling a motor vehicle including a drivable base and a vehicle carrier coupled to the base and extending in a longitudinal direction, is configured and developed in terms of a flexible production using simple constructional means, in such a way that the vehicle carrier has actuatable receiving points for carrying the motor vehicle, the vehicle carrier can be moved along its longitudinal direction relative to the base by means of a guide device and can be tilted around an axis oriented orthogonally to the longitudinal direction, such that the at least partially assembled motor vehicle can drive off of the vehicle carrier on its own wheels when receiving points are released from the motor vehicle.Type: GrantFiled: August 5, 2016Date of Patent: May 25, 2021Assignee: Universitaet StuttgartInventor: Matthias Hofmann
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Patent number: 10994407Abstract: A self-driving storage device for storing and/or transporting body components of motor vehicles, base modules of motor vehicles, or motor vehicles in a final or partially assembled state, the self-driving storage device comprising a base element and a support structure which is arranged on the base element, is designed to receive the body components or the motor vehicles in a final or partially assembled state, and has a plurality of storage spaces with movable storage base elements, wherein the storage device has a movement device which is arranged on the base element and is designed such that the storage device can be moved omnidirectionally in a self-driving manner, in a floor-bound manner.Type: GrantFiled: October 20, 2016Date of Patent: May 4, 2021Assignee: UNIVERSITAET STUTTGARTInventors: Karl-Heinz Wehking, Matthias Hofmann, Markus Schroeppel
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Patent number: 10840669Abstract: Radiation field amplifier system for a radiation field comprising an amplifying unit and a heat dissipation system with one heat spreading element or several heat spreading elements, said one heat spreading element or at least one of said several heat spreading elements of said heat dissipation system is pressed with a contact surface within a contact area against said amplifying unit and said contact surface rises starting from a geometrical reference plane in direction towards said amplifying unit and a distance d between said contact surface and said geometrical reference plane attains its largest value within a central area, which is arranged inside said contact area and said distance d is smaller outside said central area than inside said central area.Type: GrantFiled: October 9, 2017Date of Patent: November 17, 2020Assignee: Universitaet StuttgartInventors: Jan-Hinnerk Wolter, Andreas Voss
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Patent number: 10835989Abstract: In a method of friction stir welding two pieces of material of greatly differing melting temperatures, provision is made that the first piece of material is overlapped by the second piece of material. The rotating pin of the friction stir welding tool provides for a butt joint welding and an overlap welding at the same time in that the pin is moved along the face side and contacts it either not at all or at most to a minimum extent. The same also applies to the planar side of the first piece of material, which is overlapped by the less stable piece of material.Type: GrantFiled: July 29, 2016Date of Patent: November 17, 2020Assignee: UNIVERSITAET STUTTGARTInventors: Martin Werz, Stefan Weihe
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Publication number: 20200295599Abstract: A device for inductively transferring electrical energy and/or data from a primary-sided carrier to at least one positionable secondary-sided recipient includes at least one primary-sided coil arrangement, which inductively interacts with at least one secondary-sided coil arrangement. Meander-shaped windings of a predeterminable winding number of the primary-sided and/or secondary-sided coil arrangement are arranged on at least one flexible carrier by embroidering a high frequency strand, and the meander-shaped windings have straight courses in the region of crossovers of the embroidered high frequency strands.Type: ApplicationFiled: March 13, 2020Publication date: September 17, 2020Applicants: Balluff GmbH, Universitaet StuttgartInventors: Joerg HEINRICH, David MAIER, Nejila PARSPOUR
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Publication number: 20200295604Abstract: A circuit for inductively transferring electrical energy from a primary side to a secondary side has a primary-sided autoresonant power oscillator compensated in parallel having a primary inductivity and serially compensated secondary sides each having a secondary inductivity.Type: ApplicationFiled: March 13, 2020Publication date: September 17, 2020Applicants: Balluff GmbH, Universitaet StuttgartInventors: Joerg HEINRICH, David MAIER, Nejila PARSPOUR
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Publication number: 20200295600Abstract: A device for inductively transferring electrical energy and/or data from a primary-sided carrier to at least one secondary-sided recipient which can be positioned on the carrier has a meander-shaped winding on the primary side and at least one meander-shaped winding on the secondary side.Type: ApplicationFiled: March 13, 2020Publication date: September 17, 2020Applicants: Balluff GmbH, Universitaet StuttgartInventors: Joerg HEINRICH, David MAIER, Nejila PARSPOUR
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Patent number: 10612905Abstract: An interferometer for areally measuring an optically smooth surface is presented, including means for illuminating a surface region with a plurality of discrete object waves from different directions and comprising means which, on a detector, superimpose object waves reflected at the surface onto a reference wave that is coherent with a plurality of object waves in order to form an interferogram. The interferometer is distinguished by virtue of it being configured to illuminate the surface with a plurality of object waves at the same time and produce the reference wave by way of a Fizeau beam splitter plate or a Fizeau objective, and by virtue of the interferometer including an interferometer stop that is arranged in the beam path upstream of the detector, and imaging optics, wherein the interferometer stop is situated within, or slightly outside of, the Fourier plane of the imaging optics and said interferometer stop filters the object waves reflected by the surface.Type: GrantFiled: November 14, 2016Date of Patent: April 7, 2020Assignee: UNIVERSITAET STUTTGARTInventors: Goran Baer, Christof Pruss, Wolfgang Osten
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Patent number: 10608398Abstract: Radiation field amplifier system for a radiation field with a wave length L comprising a first optical device, a second optical device, an amplifying unit and a heat dissipation system, said radiation field penetrates said first optical device, said amplifying unit and said second optical device in this order and at least one of said optical devices is part of said heat dissipation system, said optical devices act birefringently on said radiation field and said amplifying unit alters a polarization of said radiation field such that a depolarization of said radiation field occurring in said first optical device is essentially compensated by a depolarization of said radiation field occurring in said second optical device.Type: GrantFiled: October 9, 2017Date of Patent: March 31, 2020Assignee: Universitaet StuttgartInventors: Jan-Hinnerk Wolter, Andreas Voss
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Patent number: 10566615Abstract: A method is disclosed for producing a battery preparing a first electrode by providing a substrate and depositing onto the substrate at least one silicon-based semiconductor layer of a specific porosity, in particular a doped micro-crystalline silicon layer that may comprise additions of Ge, Sn and/or C; treating the semiconductor layer using laser radiation for fully or partially varying the porosity, in particular by increasing the porosity of active regions for accommodating ions, in particular lithium-ions, or for reducing the porosity of inactive regions, for decreasing the ion-absorption capacity; arranging the first electrode together with a second electrode and an electrolyte within a housing; and contacting the two electrodes and connecting with external terminals accessible from outside the housing. Also disclosed is a battery made according to the disclosed method.Type: GrantFiled: June 20, 2016Date of Patent: February 18, 2020Assignee: Universitaet StuttgartInventors: Juergen H. Werner, Markus Schubert, Juergen Koehler, Ahmed Garamoun, Christian Saemann
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Patent number: 10279422Abstract: A friction stir welding device and a friction stir welding method provide that an additional material is introduced into the gap between a rotating pin and a fixed shoulder. The pin and/or the shoulder includes a conveyor worm structure by which the additional material is transported to the workpiece.Type: GrantFiled: October 19, 2015Date of Patent: May 7, 2019Assignee: UNIVERSITAET STUTTGARTInventors: Martin Werz, Michael Seidenfuss
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Publication number: 20190084027Abstract: Method for producing a component system having a first component with a first component portion and a second component with a second component portion, including the following steps: connecting, in particular welding or soldering, the first component portion, which consists of an aluminum alloy, to the second component portion, which in particular consists of a naturally aged aluminum alloy, a copper alloy or an iron alloy, in particular a steel alloy, so as to form a connection seam; artificially aging the connection seam such that the yield strength of the connection seam is above the yield strength of the first component portion and/or of the second component portion; and deforming, in particular deep-drawing and/or stretch-drawing, the component system.Type: ApplicationFiled: September 12, 2018Publication date: March 21, 2019Applicant: UNIVERSITAET STUTTGARTInventors: Martin Werz, Stefan Weihe, Lisa Ehemann
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Publication number: 20180328711Abstract: An interferometer for areally measuring an optically smooth surface is presented, including means for illuminating a surface region with a plurality of discrete object waves from different directions and comprising means which, on a detector, superimpose object waves reflected at the surface onto a reference wave that is coherent with a plurality of object waves in order to form an interferogram. The interferometer is distinguished by virtue of it being configured to illuminate the surface with a plurality of object waves at the same time and produce the reference wave by way of a Fizeau beam splitter plate or a Fizeau objective, and by virtue of the interferometer including an interferometer stop that is arranged in the beam path upstream of the detector, and imaging optics, wherein the interferometer stop is situated within, or slightly outside of, the Fourier plane of the imaging optics and said interferometer stop filters the object waves reflected by the surface.Type: ApplicationFiled: November 14, 2016Publication date: November 15, 2018Applicant: UNIVERSITAET STUTTGARTInventors: Goran Baer, Christof Pruss, Wolfgang Osten
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Publication number: 20180311811Abstract: A self-driving storage device for storing and/or transporting body components of motor vehicles, base modules of motor vehicles, or motor vehicles in a final or partially assembled state, the self-driving storage device comprising a base element and a support structure which is arranged on the base element, is designed to receive the body components or the motor vehicles in a final or partially assembled state, and has a plurality of storage spaces with movable storage base elements, wherein the storage device has a movement device which is arranged on the base element and is designed such that the storage device can be moved omnidirectionally in a self-driving manner, in a floor-bound manner.Type: ApplicationFiled: October 20, 2016Publication date: November 1, 2018Applicant: UNIVERSITAET STUTTGARTInventors: Karl-Heinz Wehking, Matthias Hofmann, Markus Schroeppel
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Publication number: 20180229933Abstract: A driverless transport device for assembling a motor vehicle comprising a drivable base and a vehicle carrier coupled to the base and extending in a longitudinal direction, is configured and developed in terms of a flexible production using simple constructional means, in such a way that the vehicle carrier has actuatable receiving points for carrying the motor vehicle, the vehicle carrier can be moved along its longitudinal direction relative to the base by means of a guide device and can be tilted around an axis oriented orthogonally to the longitudinal direction, such that the at least partially assembled motor vehicle can drive off of the vehicle carrier on its own wheels when receiving points are released from the motor vehicle. The invention also relates to a method for unloading a motor vehicle from a driverless transport device that functions to assemble the motor vehicle.Type: ApplicationFiled: August 5, 2016Publication date: August 16, 2018Applicant: Universitaet StuttgartInventor: Matthias Hofmann
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Patent number: 9849541Abstract: Provided is a method and tool for butt welding a first material piece of metal to a second material piece of metal at opposed longitudinal edges. The second material piece has a greater material thickness than the first material piece. The first material piece has a higher tensile strength and/or a higher inching temperature and/or a higher yield strength and/or a higher modulus of elasticity than the second material piece. A thickened longitudinal edge is provided at the first material piece. The thickening of the longitudinal edge is at least partly produced by at least simple folding, beading or winding of the first material piece or at least partly by folding the first material piece at its edge. The two material pieces are friction-stir welded at their front along the opposed longitudinal edges.Type: GrantFiled: September 12, 2014Date of Patent: December 26, 2017Assignee: UNIVERSITAET STUTTGARTInventors: Martin Werz, Max Hossfeld, Oliver Volz