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).

  • 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
  • Publication number: 20080031767
    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: Application
    Filed: June 23, 2005
    Publication date: February 7, 2008
    Applicants: INCO LIMITED, FRAUNHOFER-GESELLSCHAFT ZUR FORDERUNG DER ANGEWANDTEN FORSCHUNG E.V.
    Inventors: Dirk Naumann, LLoyd Timberg, Alexander Bohm, Gunnar Walther
  • Publication number: 20060280637
    Abstract: The invention relates to a method for manufacturing components with a nickel base alloy as well as to components manufactured therewith. The respective components, in particular, are to have improved mechanical properties in comparison with the conventional solutions, and are to be producible in the most differently shaped form. During the production, proceeding takes place then such that a substrate core made of nickel or a nickel base alloy, in which nickel is included with a content of at least 20 wt %, will be coated on the surface with a binding agent as well as a metal powder in which nickel is included with a content of at least 20 wt % in addition to further alloy forming elements. Subsequently, a stepped thermal treatment is carried out in which the binding agent is expelled at first, and subsequent to this sintering of the mezai powder is performed which results in alloying up a nickel substrate core and/or which develops a solid surface coating made of nickel base alloy.
    Type: Application
    Filed: September 29, 2004
    Publication date: December 14, 2006
    Inventors: Dirk Naumann, Gunnar Walther, Alexander Bohm
  • Patent number: 7048843
    Abstract: The invention relates to a method for producing metal hydroxides or alkaline metal carbonates by anode dissolution of the corresponding metals and precipitation of the hydroxides or alkaline carbonates in an aqueous medium. The anode dissolution of the metal components is carried out in the anode compartment of a three-compartment electrolytic cell. An aqueous auxiliary salt solution is fed to an intermediate compartment that is disposed between the anode compartment and the cathode compartment and that is separated therefrom by a porous membrane. An at least not alkaline metal salt solution is continuously taken from the anode compartment while an alkaline auxiliary salt solution is continuously taken from the cathode compartment. The at least not alkaline metal salt solution and the alkaline auxiliary salt solution are combined outside the electrolytic cell for the purpose of precipitating metal hydroxides or alkaline metal carbonates.
    Type: Grant
    Filed: June 6, 2001
    Date of Patent: May 23, 2006
    Assignee: H.C. Starck GmbH
    Inventors: Armin Olbrich, Astrid Görge, Frank Schrumpf, Juliane Meese-Marktscheffel, Viktor Stoller, Gerhard Gille, Josef Schmoll, Michael Kruft, Dirk Naumann
  • Publication number: 20060073062
    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-light 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 metal or metal alloy of the corresponding intermetallic phase or solid solution.
    Type: Application
    Filed: December 17, 2003
    Publication date: April 6, 2006
    Inventors: Dirk Naumann, Thomas Weissgarber, Alexander Bohm
  • Patent number: 7020241
    Abstract: A method for the detection of a specific material in an object (1), especially in a piece of luggage, using electromagnetic beams, whereby the intensities of non-absorbed beams from at least three beam planes (5.1–5.2) in corresponding detector arrays (4.1–4.5) are measured and evaluated, using the following steps according to the invention: 1. generating an at least two-dimensional picture of the object (1) from the measured intensity values; 2. selecting one of the spatial regions displayed in the picture as a basis of the value of a material value, which is determined from intensity measurements, for examination; 3. determining at least one spatial-geometric value in the region to the examined from positional data of a two-dimensional picture and from intensity values using a stored value of a specific, absorption-influenced value of a suspected material. 4.
    Type: Grant
    Filed: September 21, 2002
    Date of Patent: March 28, 2006
    Assignee: Heimann Systems GmbH
    Inventors: Knut Beneke, Joerg Nittikowski, Dirk Naumann, Hermann Ries, Uwe Siedenburg, Claus Meder, Stefan Ullrich
  • Publication number: 20050265882
    Abstract: The invention relates to a method for fabricating an open-porous molded body which is formed from nickel or iron and at least another element which form solid solutions or intermetallic phases as well as a molded body which is correspondingly fabricated, and the use thereof. During the fabrication it is proceeded then, such that a coating with a metallic powder forming solid solutions or intermetallic phases is deposited upon an open-porous body made of nickel or iron by means of an organic binder. Subsequent thereto, the open-porous body provided with the coating is brought into the desired shape with observing minimum bending radii, and subsequently the organic components are removed in a first thermal treatment step. By means of a second thermal treatment the open-porous molded body is sintered, and the solid solution or the intermetallic phase are formed.
    Type: Application
    Filed: April 5, 2004
    Publication date: December 1, 2005
    Inventors: Dirk Naumann, Thomas Weibgarber, Hans-Dietrich Bohm, Beate Englemann, Gunnar Walther, Alexander Bohm
  • Patent number: 6926969
    Abstract: The invention relates to a process for the production of sintered porous bodies, to porous bodies produced correspondingly using the process, and to their use. With the solution according to the invention, sintered bodies which achieve improved properties, such as an increased surface area, deformability of the structures at room temperature or modification of the initial pore volume, are to be produced. To this end, at least one sintering-active powder which forms at least one intermetallic phase or mixed crystals is applied to the surface of a porous basic body. Heat treatment is to be carried out subsequently, in which intermetallic phases or mixed crystals which increase the specific surface area can be formed.
    Type: Grant
    Filed: October 4, 2002
    Date of Patent: August 9, 2005
    Assignees: Inco Limited, Fraunhofer-Gesellschaft zur Forderung der angewandten Forschung e. V.
    Inventors: Alexander Bohm, Hartmut Gohler, Dirk Naumann
  • Patent number: 6883431
    Abstract: A control system for a printing machine and a safety device for scanning and displaying a hazardous area that cannot be looked at on a printing machine and method thereof includes permitting the printing machine to be started up only after an acknowledgement through a control device that the hazardous area displayed has been examined by an operator.
    Type: Grant
    Filed: March 28, 2002
    Date of Patent: April 26, 2005
    Assignee: Heidelberger Druckmaschinen AG
    Inventors: Uwe Fischer, Hans-Peter Hiltwein, Carsten Huschle, Dirk Naumann, Michael Rehberg
  • Publication number: 20040131530
    Abstract: The present invention relates to basic cobalt(II) carbonate, agglomerated from fine primary particles and of general composition Co[(OH)2]a[CO3]1-a, where 0.1≦a≦0.9, and to spherodial cobalt(II) hydroxide, to a process for producing them and to their use.
    Type: Application
    Filed: December 16, 2003
    Publication date: July 8, 2004
    Inventors: Astrid Gorge, Juliane Meese-Marktscheffel, Dirk Naumann, Armin Olbrich, Frank Schrumpf
  • Patent number: 6746511
    Abstract: A continuous method of manufacturing a liquid dispersion containing submicron metal or metal compound particles inside a liquid bath. A metal-containing fluid with carrier gas mixture is bubbled through the liquid bath and predetermined conditions in the bath cause the fluid to decompose to form the submicron sized metal or metal compound particles in the liquid.
    Type: Grant
    Filed: July 3, 2002
    Date of Patent: June 8, 2004
    Assignee: Inco Limited
    Inventors: Eric B. Wasmund, Richard S. Adams, John Ambrose, Armen Markarian, Dirk Naumann, Lloyd Timberg, Rinaldo Stefan
  • Publication number: 20040101706
    Abstract: The invention relates to a process for the production of sintered porous bodies, to porous bodies produced correspondingly using the process, and to their use. With the solution according to the invention, sintered bodies which achieve improved properties, such as an increased surface area, deformability of the structures at room temperature or modification of the initial pore volume, are to be produced. To this end, at least one sintering-active powder which forms at least one intermetallic phase or mixed crystals is applied to the surface of a porous basic body. Heat treatment is to be carried out subsequently, in which intermetallic phases or mixed crystals which increase the specific surface area can be formed.
    Type: Application
    Filed: September 22, 2003
    Publication date: May 27, 2004
    Inventors: Alexander Bohm, Hartmut Gohler, Dirk Naumann
  • Patent number: 6699453
    Abstract: The present invention relates to basic cobalt(II) carbonate, agglomerated from fine primary particles and of general composition Co[(OH)2]a[CO3]1−a, where 0.1≦a≦0.9, and to spheroidal cobalt(II) hydroxide, to a process for producing them and to their use.
    Type: Grant
    Filed: November 24, 1997
    Date of Patent: March 2, 2004
    Assignee: H.C. Starck GmbH & Co KG
    Inventors: Astrid Görge, Juliane Meese-Marktscheffel, Dirk Naumann, Armin Olbrich, Frank Schrumpf
  • Publication number: 20040003680
    Abstract: A continuous method of manufacturing a liquid dispersion containing submicron metal or metal compound particles inside a liquid bath. A metal-containing fluid with carrier gas mixture is bubbled through the liquid bath and predetermined conditions in the bath cause the fluid to decompose to form the submicron sized metal or metal compound particles in the liquid.
    Type: Application
    Filed: July 3, 2002
    Publication date: January 8, 2004
    Applicant: Inco Limited, a Canadian corporation
    Inventors: Eric B. Wasmund, Richard S. Adams, John Ambrose, Armen Markarian, Dirk Naumann, Lloyd Timberg, Rinaldo Stefan
  • Publication number: 20030190011
    Abstract: A method for the detection of a specific material in an object (1), especially in a piece of luggage, using electromagnetic beams, whereby the intensities of non-absorbed beams from at least three beam planes (5.1-5.2) in corresponding detector arrays (4.1-4.
    Type: Application
    Filed: February 27, 2003
    Publication date: October 9, 2003
    Inventors: Knut Beneke, Joerg Nittikowski, Dirk Naumann, Hermann Ries, Uwe Siedenburg, Claus Meder, Stefan Ullrich
  • Publication number: 20030141199
    Abstract: The invention relates to a method for producing metal hydroxides or alkaline metal carbonates by anode dissolution of the corresponding metals and precipitation of the hydroxides or alkaline carbonates in an aqueous medium. The anode dissolution of the metal components is carried out in the anode compartment of a three-compartment electrolytic cell. An aqueous auxiliary salt solution is fed to an intermediate compartment that is disposed between the anode compartment and the cathode compartment and that is separated therefrom by a porous membrane. An at least not alkaline metal salt solution is continuously taken from the anode compartment while an alkaline auxiliary salt solution is continuously taken from the cathode compartment. The at least not alkaline metal salt solution and the alkaline auxiliary salt solution are combined outside the electrolytic cell for the purpose of precipitating metal hydroxides or alkaline metal carbonates.
    Type: Application
    Filed: December 13, 2002
    Publication date: July 31, 2003
    Inventors: Armin Olbrich, Astrid Grge, Frank Schrumpf, Juliane Meese-Marktscheffel, Viktor Stoller, Gerhard Gille, Josef Schmoll, Michael Kruft, Dirk Naumann
  • Patent number: 6597760
    Abstract: In an inspection device for inspecting objects for explosives and other items prohibited for travel, particularly in carry-on baggage, a transport shaft (101) where there is little space, has incorporated thereabout radiation sources (10, 20, 30), which generate at least three beams (FX1, FX2, FX3) at which are directed at corresponding linear detectors (11, 21, 31). This transport shaft (101) is extended by incorporation of equipment or system components (3, 4, 40) that are not part of the inspection system (100), or by additional system components (4, 40) being integrated into a housing (103) of the inspection device (100), with a necessary radiation protection for the inspection device in compliance with radiation protection regulations being provided by a shielding (102) placed on or around a piece of equipment or its system components (3) already existing in the transport system (1), ideally in front of the transport shaft (101).
    Type: Grant
    Filed: May 23, 2002
    Date of Patent: July 22, 2003
    Assignee: Heimann Systems GmbH
    Inventors: Knut Beneke, Uwe Siedenburg, Dirk Naumann, Helmut Thoma
  • Publication number: 20020176533
    Abstract: In an inspection device for inspecting objects for explosives and other items prohibited for travel, particularly in carry-on baggage, a transport shaft (101) where there is little space, has incorporated thereabout radiation sources (10, 20, 30), which generate at least three beams (FX1, FX2, FX3) at which are directed at corresponding linear detectors (11, 21, 31). This transport shaft (101) is extended by incorporation of equipment or system components (3, 4, 40) that are not part of the inspection system (100), or by additional system components (4, 40) being integrated into a housing (103) of the inspection device (100), with a necessary radiation protection for the inspection device in compliance with radiation protection regulations being provided by a shielding (102) placed on or around a piece of equipment or its system components (3) already existing in the transport system (1), ideally in front of the transport shaft (101).
    Type: Application
    Filed: May 23, 2002
    Publication date: November 28, 2002
    Inventors: Knut Beneke, Uwe Siedenburg, Dirk Naumann, Helmut Thoma
  • Publication number: 20020139271
    Abstract: A control system for a printing machine and a safety device for scanning and displaying a hazardous area that cannot be looked at on a printing machine and method thereof includes permitting the printing machine to be started up only after an acknowledgement through a control device that the hazardous area displayed has been examined by an operator.
    Type: Application
    Filed: March 28, 2002
    Publication date: October 3, 2002
    Inventors: Uwe Fischer, Hans-Peter Hiltwein, Carsten Huschle, Dirk Naumann, Michael Rehberg
  • Patent number: 6277305
    Abstract: The present invention relates to cobalt(II) oxide containing metallic cobalt, to a process for the production thereof and to the use thereof.
    Type: Grant
    Filed: December 17, 1999
    Date of Patent: August 21, 2001
    Assignee: H. C. Starck GmbH & Co. KG
    Inventors: Astrid Görge, Juliane Meese-Marktscheffel, Dirk Naumann, Armin Olbrich, Frank Schrumpf