Patents by Inventor Alexander Hofmann
Alexander Hofmann 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: 20190084238Abstract: Apparatus (17, 24) for additively manufacturing of three-dimensional objects by means of successive layerwise selective irradiation and consolidation of layers of a build material which can be consolidated by means of an energy source, with a filter unit (4) adapted to filter residues from at least one stream of process gas (18), characterized by at least one positioning device (1, 25, 28) adapted to at least partly automatically transfer the filter unit (4) or at least a part of the filter unit between a disconnected state in which the filter unit (4) is disconnected from the stream of process gas (18) to a connected state in which the filter unit (4) is connected to the stream of process gas (18).Type: ApplicationFiled: September 19, 2018Publication date: March 21, 2019Applicant: CONCEPT LASER GMBHInventors: Fabian ZEULNER, Ralf HETZEL, Jens STAMMBERGER, Alexander HOFMANN, Pascal KRAUSE, Dagmar WOHLFARTH
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Publication number: 20190081573Abstract: Some embodiments may include a multi-stage converter comprising: a branch connected between a positive busbar and a negative busbar; and a control device. The branch has two arms connected in series. The arms each comprise a series circuit including a plurality of two-pole submodules, an energy store, and a communication connection to the control device. The communication connection transmits state of charge of the energy store and a switching instruction for the respective submodule. For at least a subset of the submodules, the communication connection comprises a common communication connection with a plurality of insulation paths having an insulation capability in each case of at most 5 kV.Type: ApplicationFiled: February 20, 2017Publication date: March 14, 2019Applicant: Siemens AktiengesellschaftInventors: Manuel Blum, Marek Galek, Alexander Hofmann, Dirk Malipaard, Benjamin Ruccius
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Publication number: 20190039307Abstract: Apparatus (1, 23, 27, 30) for additively manufacturing of three-dimensional objects (2) by means of successive layerwise selective irradiation and consolidation of layers of a build material (3) which can be consolidated by means of an energy beam, whereby the apparatus (1, 23, 27, 30) comprises at least one process chamber (4) with at least one chamber separation device (5, 24, 28, 31) separating a process region (6) into a first sub-region (7) and a second sub-region (8) of the process chamber (4), wherein the chamber separation device (5, 24, 28, 31) comprises at least one separation element (9, 29, 31) that is moveable and/or deformable, wherein the separation element (9, 29, 31) is configured to create a passageway (18) between the first and the second sub-region (7, 8) for at least one tool carrier (19).Type: ApplicationFiled: July 26, 2018Publication date: February 7, 2019Applicant: Concept Laser GmbHInventors: Alexander Hofmann, Daniel Winiarski, Jens Stammberger
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Publication number: 20190030604Abstract: An apparatus (1) for additive manufacturing of three-dimensional objects (3) by successive, selective layer-by-layer exposure and thus successive, selective layer-by-layer solidification of construction material layers of construction material (4) that can be solidified by means of an energy beam. The apparatus can include a process chamber (14) comprising a working plane (A) with a first working plane area (A1) and another working plane area (A2), a coating device (6) provided for forming construction material layers to be exposed selectively and to be solidified selectively in the construction plane (E) and comprising a coating element assembly group (8) which is movably supported, at least one coating element, a shielding device (18) provided for shielding the second working plane area (A2), wherein the shielding device (18) can include at least one shielding band (20) guided movably along supporting points (19).Type: ApplicationFiled: September 28, 2018Publication date: January 31, 2019Applicant: CONCEPT LASER GMBHInventors: Jens STAMMBERGER, Alexander HOFMANN, Daniel WINIARSKI
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Publication number: 20190022790Abstract: Apparatus (1) for additively manufacturing of three-dimensional objects (2) by means of successive layerwise selective irradiation and consolidation of layers of a build material (3) which can be consolidated by means of an energy beam, wherein a direct measuring unit (4) is provided for determining a position and/or a travel distance of at least one moveable component (5) of the apparatus (1).Type: ApplicationFiled: May 16, 2018Publication date: January 24, 2019Applicant: CL SCHUTZRECHTSVERWALTUNGS GMBHInventors: Alexander Hofmann, Jens Stammberger
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Publication number: 20190022940Abstract: Apparatus (1) for additively manufacturing of three-dimensional objects by means of successive layerwise selective irradiation and consolidation of layers of a build material which can be consolidated by means of an energy beam, with a stream generating unit (2) configured to generate a stream of a process gas (3) being capable of being charged with particles (4), in particular non-consolidated particulate build material and/or smoke and/or smoke residues, generated during operation of the apparatus (1) and a filter unit (5) configured to separate particles (4) from the stream of process gas (3), wherein the filter unit (5) comprises a filter chamber (6) with at least one filter element (7) at least partly arranged in the streaming path of the generated stream of process gas (3), wherein particles (4) in the stream of process gas (3) are separated from the process gas (3) by the filter element (7).Type: ApplicationFiled: June 28, 2018Publication date: January 24, 2019Applicant: CL SCHUTZRECHTSVERWALTUNGS GMBHInventors: Alexander HOFMANN, Christian DILLER, Ulrich ALBANUS, Payam DANESCHWAR
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Publication number: 20190022938Abstract: Apparatus (1) for additively manufacturing of three-dimensional objects by means of successive layerwise selective irradiation and consolidation of layers of a build material which can be consolidated by means of an energy beam, comprising at least one process chamber (2), wherein the process chamber (2) comprises at least two chamber segments (3, 4), wherein at least one chamber segment (3, 4) is mounted on the at least one other chamber segment (3, 4) and is separately detachable.Type: ApplicationFiled: May 16, 2018Publication date: January 24, 2019Applicant: CL SCHUTZRECHTSVERWALTUNGS GMBHInventors: Daniel WINIARSKI, Jens STAMMBERGER, Alexander HOFMANN
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Patent number: 10118225Abstract: An apparatus (1) for additive manufacturing of three-dimensional objects (3) by successive, selective layer-by-layer exposure and thus successive, selective layer-by-layer solidification of construction material layers of construction material (4) that can be solidified by means of an energy beam. The apparatus can include a process chamber (14) comprising a working plane (A) with a first working plane area (A1) and another working plane area (A2), a coating device (6) provided for forming construction material layers to be exposed selectively and to be solidified selectively in the construction plane (E) and comprising a coating element assembly group (8) which is movably supported, at least one coating element, a shielding device (18) provided for shielding the second working plane area (A2), wherein the shielding device (18) can include at least one shielding band (20) guided movably along supporting points (19).Type: GrantFiled: November 14, 2017Date of Patent: November 6, 2018Assignee: CL SCHUTZRECHTSVERWALTUNGS GMBHInventors: Jens Stammberger, Alexander Hofmann, Daniel Winiarski
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Patent number: 10105895Abstract: An apparatus (1) for additive manufacturing of three-dimensional objects (2) by successive, selective layer-by-layer exposure and thus solidification of construction material layers of a construction material (3) that can be solidified by an energy beam (5) generated by an energy beam generation device (4).Type: GrantFiled: November 10, 2017Date of Patent: October 23, 2018Assignee: CL SCHUTZRECHTSVERWALTUNGS GMBHInventors: Jens Stammberger, Fabian Zeulner, Frank Schödel, Alexander Hofmann
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Patent number: 10058851Abstract: The present invention is concerned with the use of certain oxygen storage components. In particular, the use of special mixed oxides as oxygen storage components in exhaust catalysis is disclosed.Type: GrantFiled: November 25, 2014Date of Patent: August 28, 2018Assignee: UMICORE AG & CO. KGInventors: Alexander Hofmann, Liesbet Jongen, Daniel Herein
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Patent number: 10052615Abstract: The present invention is concerned with oxygen storage materials. In particular an oxygen storage material (OSM) is proposed which comprises a certain mixed oxide as the oxygen storage component. The oxygen storage material can be used in conventional manner in three-way catalysts or NOx-storage catalysts for example.Type: GrantFiled: November 25, 2014Date of Patent: August 21, 2018Assignee: UMICORE AG & CO. KGInventors: Alexander Hofmann, Liesbet Jongen, Daniel Herein
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Publication number: 20180169944Abstract: A system for additive production of three-dimensional objects, comprising at least one work station, which is designed to carry out at least one work process as part of the additive production of three-dimensional objects, comprising: at least one, particularly user-side, movable, particularly sliding, transport carriage, which comprises a frame structure, which comprises a receiving device, which comprises a receptacle chamber designed to receive a powder module within the frame structure, wherein the frame structure comprises at least two frame structure sections, wherein a first frame structure section is borne so as to be movable relative to a second frame structure section, particularly in a vertically aligned movement direction, wherein the transport carriage comprises at least one, particularly motorized lifting device, which is designed to generate a lifting force that moves the first frame structure section relative to the second frame structure section.Type: ApplicationFiled: December 19, 2017Publication date: June 21, 2018Applicant: CL SCHUTZRECHTSVERWALTUNGS GMBH LichtenfelsInventors: Alexander HOFMANN, Jens Stammberger, Patrick Bruckner
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Publication number: 20180155170Abstract: A high-lift industrial truck is provided comprising: a lift frame configured to mount a lift fork having a least one fork arm, the lift frame having at least two mast profiles that are spaced apart and are connected by at least one traverse, a cargo sledge disposed between the mast profiles and having at least two vertically spaced rollers disposed within the guide tracks of each mast profile, and a lifting device for raising and lowering the lift fork in the lift frame. Each mast profile has guide tracks defining spaced-apart running surfaces which extend perpendicularly of the lift fork and includes a lower section proximal to the ground and an upper section disposed vertically above the lower section. The running surfaces of the lower section defines a transverse distance across the surfaces which is greater than a transverse distance between the running surfaces defined by the upper section.Type: ApplicationFiled: December 1, 2017Publication date: June 7, 2018Applicant: Jungheinrich AktiengesellschaftInventors: Markus Nagel, Alexander Hofmann
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Publication number: 20180133797Abstract: An apparatus (1) for additive manufacturing of three-dimensional objects (3) by successive, selective layer-by-layer exposure and thus successive, selective layer-by-layer solidification of construction material layers of construction material (4) that can be solidified by means of an energy beam, comprising: a process chamber (4) comprising a working plane (A) which comprises a first working plane area (A1) comprising a construction plane (E) and another working plane area (A2) in which at least a part of a coating device (6) is arranged, a coating device (6) provided for forming construction material layers to be exposed selectively and to be solidified selectively in the construction plane (E) and comprising a coating element assembly group (8) which is movably supported, especially relative to the construction plane (E), via a guiding device (9) and comprises at least one coating element, a shielding device (18) provided for shielding the second working plane area (A2) from the intrusion of construction mType: ApplicationFiled: November 14, 2017Publication date: May 17, 2018Applicant: CL SCHUTZRECHTSVERWALTUNGS GMBHInventors: Jens STAMMBERGER, Alexander HOFMANN, Daniel WINIARSKI
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Publication number: 20180133635Abstract: An apparatus (1) for additive manufacturing of three-dimensional objects (2) by successive, selective layer-by-layer exposure and thus successive, selective layer-by-layer solidification of construction material layers of construction material (3) that can be solidified by means of an energy beam, comprising a filter device (7) provided for filtering process gas (9) arising in the course of performing additive construction processes in a process chamber (8) of the apparatus (1), especially containing impurities arising in relation to the process, wherein the filter device (7) comprises several filter modules (14) with a filter module housing (15) each, wherein every filter module housing (15) comprises a filter body receiving room (16) configured with a defined geometry provided for receiving a defined number of filter bodies (18) configured with a defined geometry, wherein every filter module (14) comprises connection interfaces (19, 20) on the filter module via which it is or can be connected, if required,Type: ApplicationFiled: November 14, 2017Publication date: May 17, 2018Applicant: CL SCHUTZRECHTSVERWALTUNGS GMBHInventors: Alexander HOFMANN, Jens STAMMBERGER, Ralf HETZEL
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Publication number: 20180133798Abstract: A system for additive manufacturing of three-dimensional objects, comprising one or more working stations provided for performing at least one working process in additive manufacturing of three-dimensional objects, and a transport device provided for transporting powder modules used in additive manufacturing of three-dimensional objects within a working station and/or between several working stations, wherein the transport device comprises several transport units, wherein a respective transport unit comprises a carrying device comprising a carrying structure, which is provided for carrying at least one powder module arranged in the carrying structure, a first drive device provided for generating a movement of a powder module arranged in the carrying structure of the carrying device relative to the carrying device along an, especially linear, first movement axis, and a second drive device provided for generating a rotational movement of the carrying structure together with a powder module.Type: ApplicationFiled: November 14, 2017Publication date: May 17, 2018Applicant: CL SCHUTZRECHTSVERWALTUNGS GMBHInventors: Jens STAMMBERGER, Alexander Hofmann
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Publication number: 20180133963Abstract: A system (1) for additive manufacturing of three-dimensional objects, comprising one or more working stations (21), which are provided for performing at least one working process in the additive manufacturing of three-dimensional objects, at least one freely positionable mobile storage unit (2) comprising a rack-like storage device (4) comprising at least one storage room (5) provided for storing at least one powder module (6), especially for the purpose of conveying the powder module (6) between different working stations (21) of the system (1), and at least one driverless, freely movable mobile conveying unit (3) comprising a receiving device (12) provided for receiving at least one mobile storage unit (2) for the purpose of conveying the storage unit (2) between different working stations (21) of the system (1).Type: ApplicationFiled: November 14, 2017Publication date: May 17, 2018Applicant: CL SCHUTZRECHTSVERWAL TUNGS GMBHInventors: Florian BECHMANN, Ralf HETZEL, Jens STAMMBERGER, Fabian ZEULNER, Alexander HOFMANN
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Publication number: 20180133962Abstract: An apparatus (1) for additive manufacturing of three-dimensional objects (2) by successive, selective layer-by-layer exposure and thus solidification of construction material layers of a construction material (3) that can be solidified by an energy beam (5) generated by an energy beam generation device (4)Type: ApplicationFiled: November 10, 2017Publication date: May 17, 2018Applicant: CL SCHUTZRECHTSVERWALTUNGS GMBHInventors: Jens STAMMBERGER, Fabian ZEULNER, Frank SCHÖDEL, Alexander HOFMANN
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Patent number: 9915287Abstract: A method for determining at least one preloading force (K) acting between a carrying body (7) and a rolling-element bearing (2) of a bearing assembly (1), which rolling-element bearing is mounted on the carrying body, and the bearing assembly includes the rolling-element bearing and the at least one sensor device (3). The sensor device is arranged in or on the rolling-element bearing in an installation position (E1) and is coupled to an evaluating device (10) in a signaling manner. The sensor device senses the preloading force, produces at least one signal (S) in accordance with the preloading force, and transmits the signal to the evaluating device, and the evaluating device evaluates the signal in order to measure the preloading force and the sensor device is permanently decoupled from the evaluating device after the evaluation of the signal.Type: GrantFiled: August 20, 2014Date of Patent: March 13, 2018Assignee: Schaeffler Technologies AG & Co. KGInventors: Alexander Hofmann, Rainer Gebauer
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Publication number: 20170021340Abstract: The present invention is concerned with the use of certain oxygen storage components. In particular, the use of special mixed oxides as oxygen storage components in exhaust catalysis is disclosed.Type: ApplicationFiled: November 25, 2014Publication date: January 26, 2017Applicant: UMICORE AG & CO. KGInventors: Alexander HOFMANN, Liesbet JONGEN, Daniel HEREIN