Patents by Inventor Ralf HETZEL

Ralf HETZEL 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).

  • Publication number: 20190160752
    Abstract: Powder module (5), in particular for an apparatus (1) for additively manufacturing of three-dimensional objects (2), which powder module (5) comprises a powder chamber (10) with at least one wall portion (11) defining a powder room, in which powder room a carrying element (9) is provided that is moveably supported relative to the powder chamber (10), at least one support unit (13) is adapted to provide a non-locating bearing of the carrying element (9) relative to the at least one wall portion (11).
    Type: Application
    Filed: October 11, 2018
    Publication date: May 30, 2019
    Applicant: CONCEPT LASER GMBH
    Inventors: Ralf HETZEL, Christoph SCHMIDBAUER
  • 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
  • Publication number: 20190025117
    Abstract: Apparatus (1) for additively producing three-dimensional objects (2) by successive layer-by-layer selective exposure and, accompanying this, successive layer-by-layer selective solidification of construction material layers made of a construction material (3) that can be solidified by means of an energy beam (4), including an exposure device (6) which is configured to produce an energy beam (4) for successive layer-by-layer selective exposure and, accompanying this, successive layer-by-layer selective solidification of construction material layers made of a construction material (3) that can be solidified by means of the energy beam (4), a measuring device (13) that is assignable or assigned to the exposure device (6) and configured to measure the power of the energy beam (4) that is produced by the exposure device (6), wherein the measuring device (13) comprises a measuring element (15) that comprises an energy beam input face (16), and at least an energy beam widening device (17).
    Type: Application
    Filed: June 22, 2018
    Publication date: January 24, 2019
    Applicant: CL SCHUTZRECHTSVERWALTUNGS GMBH
    Inventors: Ralf HETZEL, Johanna HOCH, Benjamin BATYI
  • Publication number: 20180304529
    Abstract: A system (1) for producing three-dimensional objects (2) by way of the solidification above one another of layers of a building material which can be solidified by means of radiation at the points which correspond to the respective cross section of the object, wherein the system (1) comprises at least one process station (4) which is arranged in a first housing (3) for carrying out the layer-by-layer generative building process in a building container (5), and a handling station (7) in at least one second housing (6) for unpacking produced objects (2) from the building container (5) which can be moved between the at least one process station (4) and the at least one handling station (7), wherein the at least one process station (4) and the at least one handling station (7) are arranged in separate housing units (3, 6).
    Type: Application
    Filed: September 22, 2016
    Publication date: October 25, 2018
    Applicant: CL SCHUTZRECHTSVERWAL TUNGS GMBH
    Inventors: Frank HERZOG, Florian BECHMANN, Fabian ZEULNER, Jens STAMMBERGER, Christian DILLER, Ralf HETZEL
  • Publication number: 20180250884
    Abstract: Apparatus for the additive production of three-dimensional objects by successive layerwise selective exposure and consequent successive layerwise selective solidification of construction material layers of a construction material that can be solidified by means of an energy beam, comprising:—an exposure device, which is configured in order to generate an energy beam for the successive layerwise selective exposure and consequent successive layerwise selective solidification of construction material layers of a construction material that can be solidified by means of the energy beam, and—a measuring device for measuring a temperature, wherein the measuring device is configured in order to measure a temperature at at least one measurement point, the measurement point being assigned to at least one three-dimensional object formed at least partially from solidified construction material or to at least one object section formed in the scope of the additive production of an object to be produced additively.
    Type: Application
    Filed: March 5, 2018
    Publication date: September 6, 2018
    Applicant: CL SCHUTZRECHTSVERWALTUNGS GMBH
    Inventors: Philipp SCHUMANN, Ralf Hetzel, Tanja Traut
  • Publication number: 20180133637
    Abstract: 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 pipe structure (12), and a filter device (7) that is connected to the pipe structure (12), provided for filtering the process gas (9), wherein the filter device (7) comprises several filter modules (14) that can be or are arranged exchangeably connected to the pipe structure (12).
    Type: Application
    Filed: November 14, 2017
    Publication date: May 17, 2018
    Applicant: CL SCHUTZRECHTSVERWALTUNGS GMBH
    Inventors: Jens STAMMBERGER, Christian DILLER, Ralf HETZEL
  • Publication number: 20180133635
    Abstract: 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: Application
    Filed: November 14, 2017
    Publication date: May 17, 2018
    Applicant: CL SCHUTZRECHTSVERWALTUNGS GMBH
    Inventors: Alexander HOFMANN, Jens STAMMBERGER, Ralf HETZEL
  • Publication number: 20180136037
    Abstract: 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 a construction material (3) that can be solidified by means of laser radiation in a process chamber (10) of the apparatus, comprising an exposure device (5) provided for generating laser radiation for selective exposure and thus selective solidification of respective construction material layers, and a detection device (11) provided for detecting the entering of laser radiation into a process chamber limiting element at least partially limiting the process chamber (10) and/or for detecting the penetration of laser radiation through a process chamber limiting element at least partially limiting the process chamber (10).
    Type: Application
    Filed: November 14, 2017
    Publication date: May 17, 2018
    Applicant: CL SCHUTZRECHTSVERWALTUNGS GMBH
    Inventors: Jens STAMMBERGER, Daniel Winiarski, Christian Diller, Ralf Hetzel
  • Publication number: 20180133903
    Abstract: An unpacking device (4) for unpacking an additively manufactured three-dimensional object (2) from the unsolidified construction material (3) surrounding it after completion of an additive construction process, wherein the unpacking device (4) is formed as a robot (7) having at least three robot axes (A1-A6), especially an industrial robot, wherein at least one unpacking tool (10) is arranged or formed on a robot axis (A6), which is provided for unpacking an additively manufactured three-dimensional object (2) from the unsolidified construction material (3) surrounding it after completion of an additive construction process, or the unpacking device (4) comprises at least one such robot (7).
    Type: Application
    Filed: November 14, 2017
    Publication date: May 17, 2018
    Applicant: CL SCHUTZRECHTSVERWALTUNGS GMBH
    Inventors: Florian BECHMANN, Fabian Zeulner, Jens Stammberger, Ralf Hetzel
  • Publication number: 20180133963
    Abstract: 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: Application
    Filed: November 14, 2017
    Publication date: May 17, 2018
    Applicant: CL SCHUTZRECHTSVERWAL TUNGS GMBH
    Inventors: Florian BECHMANN, Ralf HETZEL, Jens STAMMBERGER, Fabian ZEULNER, Alexander HOFMANN