Patents by Inventor Dagmar WOHLFARTH

Dagmar WOHLFARTH 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: 11446874
    Abstract: 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: Grant
    Filed: September 19, 2018
    Date of Patent: September 20, 2022
    Assignee: CONCEPT LASER GMBH
    Inventors: Fabian Zeulner, Ralf Hetzel, Jens Stammberger, Alexander Hofmann, Pascal Krause, Dagmar Wohlfarth
  • Publication number: 20200147686
    Abstract: Plant (1) for additively manufacturing at least one three-dimensional object, comprising a at least one item transfer device (6) being configured to transfer an item (9) from a first item position and/or a first item orientation to a second item position and/or a second item orientation, wherein the at least one item transfer device (6) comprises at least one item transfer element (7) comprising a plurality of item transfer element members (8) being interconnected with each other via hinged connections.
    Type: Application
    Filed: March 5, 2019
    Publication date: May 14, 2020
    Applicant: CONCEPT LASER GMBH
    Inventors: Viktor KREMER, Christoph SCHMIDBAUER, Ralf HETZEL, Dagmar WOHLFARTH, Benjamin KRAUSSER
  • Publication number: 20200114424
    Abstract: Application unit (1) for applying, in particular powdery, build material in a build plane (2) in a process chamber (3) of an apparatus (4) for additively manufacturing three-dimensional objects, which application unit (1) comprises an application element (5) carried by an application element carrier (6), characterized in that the application element (5) is coupled to the application element carrier (6) via at least one deflection unit (9).
    Type: Application
    Filed: March 6, 2019
    Publication date: April 16, 2020
    Applicant: CONCEPT LASER GMBH
    Inventors: Christoph SCHMIDBAUER, Dagmar WOHLFARTH, Christian DILLER, Denise HIEMANN, André PETRATSCHEK
  • Publication number: 20190084238
    Abstract: 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: Application
    Filed: September 19, 2018
    Publication date: March 21, 2019
    Applicant: CONCEPT LASER GMBH
    Inventors: Fabian ZEULNER, Ralf HETZEL, Jens STAMMBERGER, Alexander HOFMANN, Pascal KRAUSE, Dagmar WOHLFARTH