Patents by Inventor Ralf Büchner

Ralf Büchner 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: 9129738
    Abstract: An oil-filled transformer switching frame is disclosed which includes at least one longitudinal channel element that is essentially formed by a wall that is curved in a U-shaped manner, for receiving in its inner region stranded conductors of an oil tank of an oil transformer. The wall of the channel element can include a first layer of mechanically strong, planar insulating material and a second layer of mechanically strong, planar insulating material that is adjacent to and fundamentally parallel to said first layer, the first layer and the second layer being connected to and spaced apart by a third layer of a mechanically strong, corrugated insulating material having hollow spaces that can be flooded with a fluid by way of lateral edges.
    Type: Grant
    Filed: June 18, 2014
    Date of Patent: September 8, 2015
    Assignee: ABB TECHNOLOGY AG
    Inventors: Hartmut Brendel, Matthias Starke, Marikka Hübner, Ralf Büchner, Klaus Herkert, Isidoro Li Pira
  • Publication number: 20150015355
    Abstract: An oil-filled transformer switching frame is disclosed which includes at least one longitudinal channel element that is essentially formed by a wall that is curved in a U-shaped manner, for receiving in its inner region stranded conductors of an oil tank of an oil transformer. The wall of the channel element can include a first layer of mechanically strong, planar insulating material and a second layer of mechanically strong, planar insulating material that is adjacent to and fundamentally parallel to said first layer, the first layer and the second layer being connected to and spaced apart by a third layer of a mechanically strong, corrugated insulating material having hollow spaces that can be flooded with a fluid by way of lateral edges.
    Type: Application
    Filed: June 18, 2014
    Publication date: January 15, 2015
    Applicant: ABB TECHNOLOGY AG
    Inventors: Hartmut BRENDEL, Matthias Starke, Marikka Hübner, Ralf Büchner, Klaus Herkert, Isidoro Li Pira
  • Patent number: 8618427
    Abstract: The disclosure relates to a spherical cap for a high-voltage outgoing line, including an electrically conductive element, which is arranged hollow-cylindrically about a rotational axis and which merges into a hemispherical form at its first axial end. A connection device has a passage opening for electrically and mechanically connecting the element, to an electrical screening pipe. At least two insulation barriers are spaced apart from one another and respectively adapted to the form of the hollow-cylindrical element and enclose the latter at a respective first and second distance. The insulation barriers respectively have a pipe attachment connector for leading through a screening pipe to the connection device. The connection device has a first part for connection to a screening pipe and a second part connected to the conductive element and a connection adjustable in a force-locking manner is provided between the first and second parts.
    Type: Grant
    Filed: October 14, 2011
    Date of Patent: December 31, 2013
    Assignee: ABB Technology AG
    Inventors: Hartmut Brendel, Matthias Starke, Ralf Büchner, Jelena Braatz, Klaus Herkert