Patents by Inventor Dirk Naumann

Dirk Naumann 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: 9505617
    Abstract: Disclosed are a radiating wall catalytic reactor for providing heat from the inside wall surface 8 of a reaction chamber 1 by radiation 16 to support an overall endothermic gas phase chemical reaction taking place in the reaction chamber 1, and a process for carrying out a chemical reaction in the reactor. The reaction chamber 1 is provided with an entrance port 2 for introducing a gaseous reactant(s) in a continuous manner into the chamber 1 and an exit port 3 to enable the gaseous product(s) to leave the chamber 1 in a continuous manner. The reaction chamber 1 includes a plurality of catalyst segments (A)5, which has one void segment (B)6 on either side of it; and the reaction chamber 1 is made of a material(s) that is (are) suitable to resist a temperature of 700° C. or more.
    Type: Grant
    Filed: March 4, 2014
    Date of Patent: November 29, 2016
    Assignee: Alantum Europe GmbH
    Inventors: Stanislaw Tadeusz Kolaczkowski, Dirk Naumann, Shadi Saberi, Babak Saberi
  • Publication number: 20160334535
    Abstract: The invention relates to a method for non-destructively inspecting an object (104), wherein electromagnetic radiation (113, 123, 133) is passed through the object (104) and intensity values of unabsorbed beams are measured and evaluated, the method comprising the following steps: generating a three-dimensional data set (300) in which a first material quantity value corresponding to a first material property of the object (104) is associated in each case with individual spatial elements (301) of the object (104) by means of a computed tomography method; determining an inspection space (310), in the three-dimensional data set (300) representing the object (104), which has spatial elements (301) whose first material quantity value is in a predetermined value range; deriving values, based on the three-dimensional data set (300), which in each case correspond to a spatial geometric quantity of the inspection space (310) in a predetermined projection direction (PR1, PR2); generating a two-dimensional data set (400)
    Type: Application
    Filed: January 16, 2015
    Publication date: November 17, 2016
    Inventors: Pia Dreiseitel, Sebastian König, Andreas Mader, Dirk Naumann, Jörg Nittikowski
  • Patent number: 9241393
    Abstract: Among other things, one or more techniques and/or systems for selectively inhibiting radiation from being generated by a radiation source are provided. A radiation source comprises an electrically conductive gate situated between a cathode and an anode. When a voltage potential is created between the gate and the cathode, a flow of electrons between the cathode and the anode is mitigated, thus inhibiting radiation from being generated by the radiation source. When the voltage potential is removed or lessened, electrons may more freely flow between the cathode and the anode to generate radiation. In some embodiments, a calibration, such as a dark calibration, may be performed while the gate mitigates the flow of electrons. Moreover, in some embodiments, an accelerating voltage applied to the radiation source may be held substantially constant when radiation is generated as well as when radiation generation is inhibited.
    Type: Grant
    Filed: March 14, 2013
    Date of Patent: January 19, 2016
    Assignee: ANALOGIC CORPORATION
    Inventors: Steven Neil Urchuk, Stephen J. Quigley, Hans Weedon, Aissa Abdulmagid, Knut Beneke, Claus Meder, Dirk Naumann
  • Publication number: 20160002036
    Abstract: Disclosed are a radiating wall catalytic reactor for providing heat from the inside wall surface 8 of a reaction chamber 1 by radiation 16 to support an overall endothermic gas phase chemical reaction taking place in the reaction chamber 1, and a process for carrying out a chemical reaction in the reactor. The reaction chamber 1 is provided with an entrance port 2 for introducing a gaseous reactant(s) in a continuous manner into the chamber 1 and an exit port 3 to enable the gaseous product(s) to leave the chamber 1 in a continuous manner. The reaction chamber 1 includes a plurality of catalyst segments (A)5, which has one void segment (B)6 on either side of it; and the reaction chamber 1 is made of a material(s) that is (are) suitable to resist a temperature of 700° C. or more.
    Type: Application
    Filed: March 4, 2014
    Publication date: January 7, 2016
    Applicant: ALANTUM EUROPE GMBH
    Inventors: Stanislaw Tadeusz KOLACZKOWSKI, Dirk NAUMANN, Shadi SABERI, Babak SABERI
  • Patent number: 9128200
    Abstract: A method and apparatus is provided for detection of a particular material in an object, in particular in an item of luggage, by means of electromagnetic radiation in which the intensities of non-absorbed radiation from at least three radiation planes are measured and evaluated in associated detector apparatus, wherein an image is produced, initially from the intensities of the non-absorbed radiation, and then if single regions of low complexity are found which are characterized by approximately constant intensities, an estimation of the attenuation coefficient s performed and a material detection is carried out in the region according to an algorithm which calculates a three-dimensional reconstruction from different views.
    Type: Grant
    Filed: October 18, 2010
    Date of Patent: September 8, 2015
    Assignee: Smiths Heimann GmbH
    Inventors: Matthias Muenster, Joerg Nittikowski, Pia Dreiseitel, Andreas Mader, Rainer Heinkel, Thomas Ries, Dirk Naumann, Uwe Siedenburg
  • Patent number: 8861676
    Abstract: A transport bin for an X-ray inspection system, comprising a identifying device rigidly connected to the bin, the identifying device having a bin-specific identifier, wherein the identifying device has a memory, in which an identification code that is unique worldwide, in particular a universally unique identifier (UUID), is stored in such a way that the identification code can be read out.
    Type: Grant
    Filed: April 5, 2012
    Date of Patent: October 14, 2014
    Assignee: Smiths Heimann GmbH
    Inventors: Harald Bloesl, Uwe Flehmig, Christian Haas, Claus Meder, Dirk Naumann, Daniel Schmitt
  • Publication number: 20140270081
    Abstract: Among other things, one or more techniques and/or systems for selectively inhibiting radiation from being generated by a radiation source are provided. A radiation source comprises an electrically conductive gate situated between a cathode and an anode. When a voltage potential is created between the gate and the cathode, a flow of electrons between the cathode and the anode is mitigated, thus inhibiting radiation from being generated by the radiation source. When the voltage potential is removed or lessened, electrons may more freely flow between the cathode and the anode to generate radiation. In some embodiments, a calibration, such as a dark calibration, may be performed while the gate mitigates the flow of electrons. Moreover, in some embodiments, an accelerating voltage applied to the radiation source may be held substantially constant when radiation is generated as well as when radiation generation is inhibited.
    Type: Application
    Filed: March 14, 2013
    Publication date: September 18, 2014
    Applicants: Smiths Heimann GmbH, Analogic Corporation
    Inventors: Steven Neil Urchuk, Stephen J. Quigley, Hans Weedon, Aissa Abdulmagid, Knut Beneke, Claus Meder, Dirk Naumann
  • Patent number: 8802004
    Abstract: The invention relates to components which are produced or processed by powder metallurgy, and to processes for producing components of this type. The components produced by powder metallurgy are intended both to have porous regions and to provide fluid-tight properties, and it should also be possible to produce them at correspondingly low cost and suitably flexibly. For this purpose, a component of this type has at least one porous region, which is formed from an intermetallic phase or solid solutions. However, it may also have a corresponding surface coating. Moreover, in a component of this type there is at least one areal fluid-tight region which is formed from a meta or metal alloy of the corresponding intermetallic phase or solid solution.
    Type: Grant
    Filed: December 5, 2007
    Date of Patent: August 12, 2014
    Assignees: Alantum Corporation, Fraunhofer Gesellschaft zur Forderung der Angewandten Forschung E.V.
    Inventors: Dirk Naumann, Thomas Weissgarber, Alexander Bohm
  • Publication number: 20140221700
    Abstract: A metallic foam body containing an alloy skin which is up to 50 ?m thick can be obtained by a process including (a) providing a metallic foam body comprising a first metallic material; (b) applying a second metallic material which contains a first metallic compound that is leachable as such and/or that can be transformed by alloying into a second metallic compound that is leachable and different from the first metallic compound on a surface of the foam body (a), by coating the metallic foam body with an organic binder and a powder of the second metallic material; (c) forming a skin on foam body (b) by alloying the first and the second metallic material; and (d) leaching out with a leaching agent at least a part of the first and/or the second metallic compound.
    Type: Application
    Filed: February 5, 2014
    Publication date: August 7, 2014
    Applicant: Alantum Europe GmbH
    Inventors: Dejan RADIVOJEVIC, Dirk NAUMANN, Shadi SABERI, Jungsuk BAE, Rene POSS
  • Patent number: 8758675
    Abstract: The invention relates to a method for fabricating an open-porous metal foam body with a nickel base alloy, to a metal foam body fabricated this way as well as advantageous applications for the separation of specific components and pollutants from fluid flows. On the occasion, according to the set object open-porous metal foam bodies which have improved mechanical properties, and in addition an enlarged specific surface and/or increased surface roughness are to be provided. During fabricating it is proceeded such that an open-porous base foam body made of nickel or a nickel base alloy is coated with a liquid binding agent. Subsequent to this, a mixture of a powdery nickel base alloy and an organic component the temperature of phase transformation of which is at least 30 degrees centigrade from its solid phase to the liquid phase is deposited. The temperature should then be below the respective temperature of phase transformation.
    Type: Grant
    Filed: February 24, 2006
    Date of Patent: June 24, 2014
    Assignees: Alantum Corporation, Fraunhofer Gesellschaft zur Forderung der Angewandten Forschung E.V.
    Inventors: Alexander Böhm, Dirk Naumann, Tilo Büttner, Gunnar Walther, Shadi Saberi, Lloyd Timberg
  • Patent number: 8444734
    Abstract: The invention relates to an apparatus for the separation of particles contained in exhaust gases of internal combustion engines in which the exhaust gas flow is guided through a filter medium in which particles can be absorbed and held back. The invention should improve the separation in a cost effective manner with respect to conventional particle filters. In accordance with the invention, the filter medium (1) is made from a metal open-pore foam having at least two layers (1.1, 1.2, 1.3) which each have a thickness, porosity and/or pore size in the flowthrough direction through the filter medium which differ from one another. In one embodiment, the particle filter includes first and second filter medium layers where the first filter medium has a mean pore size larger than a mean pore size of the second filter medium, and the first filter medium has a thickness that increases in a direction of the exhaust gas flow inlet passage of the filter housing.
    Type: Grant
    Filed: February 15, 2007
    Date of Patent: May 21, 2013
    Assignee: Alantum Corporation
    Inventors: Shadi Saberi, Alexander Böhm, Dirk Naumann, Lloyd Timberg
  • Publication number: 20120189097
    Abstract: A transport bin for an X-ray inspection system, comprising a identifying device rigidly connected to the bin, the identifying device having a bin-specific identifier, wherein the identifying device has a memory, in which an identification code that is unique worldwide, in particular a universally unique identifier (UUID), is stored in such a way that theidentification code can be read out.
    Type: Application
    Filed: April 5, 2012
    Publication date: July 26, 2012
    Inventors: Harald BLOESL, Uwe Flehmig, Christian Haas, Claus Meder, Dirk Naumann, Daniel Schmitt
  • Patent number: 8012598
    Abstract: The invention relates to metal foam bodies having an open-porous structure as well as a method for producing thereof wherein according to the set task such metal foam bodies are to be provided which achieve an increased oxidation resistance and/or an increased corrosion resistance. With the metal foam bodies having an open-porous structure according to the invention, for such metal foam bodies within the webs of the open-porous structure there are channel shaped cavities formed as being determined by the production. At the same time, the webs and cavities will be provided with a metallic protective layer made of a material differing from the metallic starting material of the foam body or the channel shaped cavities will be filled with this material. For this, an adequate metal powder or an alloy component being included in the powder will be used which becomes liquid and forms a liquid phase respectively during thermal treatment below a temperature at which the metal of the base foam body is melting.
    Type: Grant
    Filed: March 8, 2005
    Date of Patent: September 6, 2011
    Assignees: Alantum Corporation, Fraunhofer Gesellschaft zur Forderung der angewandten Forschung E.V.
    Inventors: Dirk Naumann, Gunnar Walther, Alexander Böhm
  • Patent number: 7951246
    Abstract: The invention relates to open-pored metallic foam bodies as well as a method for manufacturing thereof. These metallic foam bodies are allowed to be advantageously used with ambient environmental conditions causing a high corrosion to many conventional materials, and accordingly reducing the lifetime thereof frequently. According to the set object, the metallic foam bodies should have a low mass simultaneously with a high specific surface, and increased corrosion resistance under chemically aggressive ambient environmental conditions. An open-pored metallic foam body according to the invention is then developed such that it is formed from a nickel-copper alloy having at least 40 percent by weight of nickel and yet a porosity of at least 90%.
    Type: Grant
    Filed: June 23, 2005
    Date of Patent: May 31, 2011
    Assignees: Alantum Corporation, Fraunhofer Gesellschaft zur Förderung der angewandten FORSCHUNG E.V.
    Inventors: Dirk Naumann, Lloyd Timberg, Alexander Böhm, Gunnar Walther
  • Publication number: 20110091013
    Abstract: A method and apparatus is provided for detection of a particular material in an object, in particular in an item of luggage, by means of electromagnetic radiation in which the intensities of non-absorbed radiation from at least three radiation planes are measured and evaluated in associated detector apparatus, wherein an image is produced, initially from the intensities of the non-absorbed radiation, and then if single regions of low complexity are found which are characterized by approximately constant intensities, an estimation of the attenuation coefficient s performed and a material detection is carried out in the region according to an algorithm which calculates a three-dimensional reconstruction from different views.
    Type: Application
    Filed: October 18, 2010
    Publication date: April 21, 2011
    Inventors: Matthias MUENSTER, Joerg NITTIKOWSKI, Pia DREISEITEL, Andreas MADER, Rainer HEINKEL, Thomas RIES, Dirk NAUMANN, Uwe SIEDENBURG
  • Publication number: 20090185962
    Abstract: The invention relates to an apparatus for the separation of particles contained in exhaust gases of internal combustion engines in which the exhaust gas flow is guided through a filter medium in which particles can be absorbed and held back (4). The invention should improve the separation in a cost effective manner with respect to conventional particle filters. In accordance with the invention, the filter medium (1) is made from a metal open-pore foam having at least two layers (11, 12, 13) which each have a thickness, porosity and/or pore size in the flowthrough direction through the filter medium which differ from one another.
    Type: Application
    Filed: February 15, 2007
    Publication date: July 23, 2009
    Inventors: Shadi Saberi, Alexander Böhm, Dirk Naumann, Lloyd Timberg
  • Publication number: 20080171218
    Abstract: The invention relates to metal foam bodies having an open-porous structure as well as a method for producing thereof wherein according to the set task such metal foam bodies are to be provided which achieve an increased oxidation resistance and/or an increased corrosion resistance. With the metal foam bodies having an open-porous structure according to the invention, for such metal foam bodies within the webs of the open-porous structure there are channel shaped cavities formed as being determined by the production. At the same time, the webs and cavities will be provided with a metallic protective layer made of a material differing from the metallic starting material of the foam body or the channel shaped cavities will be filled with this material. For this, an adequate metal powder or an alloy component being included in the powder will be used which becomes liquid and forms a liquid phase respectively during thermal treatment below a temperature at which the metal of the base foam body is melting.
    Type: Application
    Filed: March 8, 2005
    Publication date: July 17, 2008
    Applicants: INCO LIMITED, FRAUNHOFER-GESELLSCHAFT
    Inventors: Dirk Naumann, Gunnar Walther, Alexander Bohm
  • Publication number: 20080148940
    Abstract: The invention relates to a method for fabricating an open-porous metal foam body with a nickel base alloy, to a metal foam body fabricated this way as well as advantageous applications for the separation of specific components and pollutants from fluid flows. On the occasion, according to the set object open-porous metal foam bodies which have improved mechanical properties, and in addition an enlarged specific surface and/or increased surface roughness are to be provided. During fabricating it is proceeded such that an open-porous base foam body made of nickel or a nickel base alloy is coated with a liquid binding agent. Subsequent to this, a mixture of a powdery nickel base alloy and an organic component the temperature of phase transformation of which is at least 30 degrees centigrade from its solid phase to the liquid phase is deposited. The temperature should then be below the respective temperature of phase transformation.
    Type: Application
    Filed: February 24, 2006
    Publication date: June 26, 2008
    Applicant: CVRD INCO LIMITED
    Inventors: Alexander Bohm, Dirk Naumann, Tilo Buttner, Gunnar Walther, Shadi Saberi, Lloyd Timberg
  • Publication number: 20080118355
    Abstract: A turbine blade for turbo-engines as well as a method for manufacturing such a turbine blade is disclosed. According to the task set, the turbine blades should be capable of withstanding high thermal stress and able to maintain an adequate mechanical strength even at raised operating temperatures. The turbine blades are so designed that on the surface of a core element a heat-insulating layer of a metallic open-cell foam is integrally connected to said core element by sintering. The outer contour of the turbine blade is formed with at least one shell element. The shell element comprises a nickel-base alloy, which is also integrally connected by sintering to the open-cell foam which forms the heat-insulating layer.
    Type: Application
    Filed: January 13, 2006
    Publication date: May 22, 2008
    Applicants: CVRD INCO LIMITED, FRAUNHOFER-GESELLSCAHAFT ZUR FORDERUNG DER ANGEWANDTEN FORSCHUNG E.V.
    Inventors: Tilo Buttner, Gunnar Walther, Thomas Weissgarber, Michael Schutze, Dirk Naumann, Alexander Bohm
  • Publication number: 20080112833
    Abstract: The invention relates to components which are produced or processed by powder metallurgy, and to processes for producing components of this type. The components produced by powder metallurgy are intended both to have porous regions and to provide fluid-tight properties, and it should also be possible to produce them at correspondingly low cost and suitably flexibly. For this purpose, a component of this type has at least one porous region, which is formed from an intermetallic phase or solid solutions. However, it may also have a corresponding surface coating. Moreover, in a component of this type there is at least one areal fluid-tight region which is formed from a meta or metal alloy of the corresponding intermetallic phase or solid solution.
    Type: Application
    Filed: December 5, 2007
    Publication date: May 15, 2008
    Applicants: INCO LIMITED, FRAUNHOFER-GESELLSCHAFT ZUR FORDERUNG DER ANGEWAN DTEN FORSCHUNG E.V.
    Inventors: Dirk Naumann, Thomas Weissgarber, Alexander Bohm