Patents by Inventor Dirk Federmann

Dirk Federmann 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: 10170775
    Abstract: A method for producing a glass solder green seal, wherein a paste comprising a glass solder powder is applied to the surface of a screen, which on the bottom side and in the screen mesh comprises regions having a coating impermeable to the paste, and the paste is pushed through the screen onto a substrate and subsequently dried, wherein printing is carried out onto an intermediate carrier serving as the substrate, from which the dried glass solder green seal can be completely detached.
    Type: Grant
    Filed: April 10, 2014
    Date of Patent: January 1, 2019
    Assignee: Forschungszentrum Juelich GmbH
    Inventors: Dirk Federmann, Hans-Rainer Zerfass, Sonja-Michaela Gross-Barsnick
  • Publication number: 20160072137
    Abstract: A method for producing a glass solder green seal, wherein a paste comprising a glass solder powder is applied to the surface of a screen, which on the bottom side and in the screen mesh comprises regions having a coating impermeable to the paste, and the paste is pushed through the screen onto a substrate and subsequently dried, wherein printing is carried out onto an intermediate carrier serving as the substrate, from which the dried glass solder green seal can be completely detached.
    Type: Application
    Filed: April 10, 2014
    Publication date: March 10, 2016
    Inventors: Dirk FEDERMANN, Hans-Rainer ZERFASS, Sonja-Michaela GROSS-BARSNICK
  • Patent number: 9112193
    Abstract: Disclosed is a sealing assembly for metal components, wherein the sealing assembly has an electrical insulating effect, and wherein the sealing assembly comprises a ceramic layer and a base brazing material disposed thereon, to which germanium is added. The addition of germanium advantageously ranges from 0.1 to 5.0 mol %, and preferably between 0.5 and 2.5 mol %. A particular embodiment provides for the use of a brazing material which additionally comprises silicon in the range of >0 to 2.5 mol %, and preferably between 0.1 and 0.9 mol %. Furthermore, a brazing material having a further addition of 10 to 40% by volume of Al2TiO5, and preferably between 20 and 30% by volume of Al2TiO5, has proven to be particularly suited for the sealing assembly.
    Type: Grant
    Filed: February 18, 2009
    Date of Patent: August 18, 2015
    Assignee: FORSCHUNGSZENTRUM JUELICH GMBH
    Inventors: Hans-Rainer Zerfass, Dirk Federmann
  • Publication number: 20110003228
    Abstract: Disclosed is a sealing assembly for metal components, wherein the sealing assembly has an electrical insulating effect, and wherein the sealing assembly comprises a ceramic layer and a base brazing material disposed thereon, to which germanium is added. The addition of germanium advantageously ranges from 0.1 to 5.0 mol %, and preferably between 0.5 and 2.5 mol %. A particular embodiment provides for the use of a brazing material which additionally comprises silicon in the range of>0 to 2.5 mol %, and preferably between 0.1 and 0.9 mol %. Furthermore, a brazing material having a further addition of 10 to 40% by volume of Al2TiO5, and preferably between 20 and 30% by volume of Al2TiO5, has proven to be particularly suited for the sealing assembly.
    Type: Application
    Filed: February 18, 2009
    Publication date: January 6, 2011
    Inventors: Hans-Rainer Zerfass, Dirk Federmann