Patents by Inventor Ralf Hartings

Ralf Hartings 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).

  • High voltage shielding device and a system comprising the same
    Patent number: 9167731
    Abstract: A high voltage shielding device including a main body having an enclosing outer solid insulating wall, an outer electrode arranged on the solid insulating wall providing a first level of insulation to the outer electrode, and a first inner electrode which is uninsulated or has a coating providing a second level of insulation, which second level of insulation is lower than the first level of insulation. The first inner electrode is oriented relative the outer electrode in such a way that the first inner electrode mainly shields a component of an electric field which is perpendicular to a component of an electric field mainly shielded by the outer electrode.
    Type: Grant
    Filed: January 8, 2013
    Date of Patent: October 20, 2015
    Assignee: ABB Reasearch Ltd.
    Inventors: Mats Berglund, Uno Gafvert, Ralf Hartings, Tor Laneryd, Tommy Larsson, Joachim Schiessling, Peter Astrand
  • High voltage device
    Patent number: 8471150
    Abstract: The invention relates to a high voltage device for providing electrical insulation of a conductor extending through the device. The device includes a hollow insulator; a conductor extending through the hollow insulator; a field gradient decreasing arrangement including a condenser core and a voltage grading shield. The condenser core and the voltage grading shield are arranged around the conductor inside the hollow insulator in a manner so that the voltage grading shield is arranged around at least part of the condenser core.
    Type: Grant
    Filed: June 18, 2010
    Date of Patent: June 25, 2013
    Assignee: ABB Technology Ltd.
    Inventors: David Emilsson, Ralf Hartings, Tommy Larsson
  • High Voltage Shielding Device And A System Comprising The Same
    Publication number: 20130120956
    Abstract: A high voltage shielding device including a main body having an enclosing outer solid insulating wall, an outer electrode arranged on the solid insulating wall providing a first level of insulation to the outer electrode, and a first inner electrode which is uninsulated or has a coating providing a second level of insulation, which second level of insulation is lower than the first level of insulation. The first inner electrode is oriented relative the outer electrode in such a way that the first inner electrode mainly shields a component of an electric field which is perpendicular to a component of an electric field mainly shielded by the outer electrode.
    Type: Application
    Filed: January 8, 2013
    Publication date: May 16, 2013
    Inventors: Mats Berglund, Uno Gafvert, Ralf Hartings, Tor Laneryd, Tommy Larsson, Joachim Schiessling, Peter Astrand
  • High voltage bushing and high voltage device comprising such bushing
    Patent number: 8049108
    Abstract: A high voltage bushing for a high voltage device containing insulating liquid includes a voltage grading shield, improving performance and facilitating manufacturing.
    Type: Grant
    Filed: December 22, 2006
    Date of Patent: November 1, 2011
    Assignee: ABB Technology Ltd.
    Inventors: Ralf Hartings, Björn Jacobson, Olof Heyman, Dan G. Gustavsson, Rutger Johansson
  • High Voltage Device
    Publication number: 20100319955
    Abstract: The invention relates to a high voltage device for providing electrical insulation of a conductor extending through the device. The device includes a hollow insulator; a conductor extending through the hollow insulator; a field gradient decreasing arrangement including a condenser core and a voltage grading shield. The condenser core and the voltage grading shield are arranged around the conductor inside the hollow insulator in a manner so that the voltage grading shield is arranged around at least part of the condenser core.
    Type: Application
    Filed: June 18, 2010
    Publication date: December 23, 2010
    Inventors: David Emilsson, Ralf Hartings, Tommy Larsson
  • HIGH VOLTAGE SHIELD
    Publication number: 20100089617
    Abstract: A high voltage corona shield including a body portion including a polymer material.
    Type: Application
    Filed: August 31, 2007
    Publication date: April 15, 2010
    Inventors: Ralf Hartings, Uno Gäfvert, Kerstin M. Ekeroth Reijm, Thomas Eriksson, Tommy L. Larsson
  • HIGH VOLTAGE DEVICE, HIGH VOLTAGE BUSHING AND METHOD OF ASSEMBLING SAID DEVICE
    Publication number: 20100018753
    Abstract: A high voltage device comprises multi contacts as interfaces between internal components and bushings.
    Type: Application
    Filed: August 30, 2007
    Publication date: January 28, 2010
    Applicant: ABB TECHNOLGY LTD.
    Inventors: Tommy L. Larsson, Kerstin M. Ekeroth Reijm, Jacob Eltebo, Dan G. Gustavsson, Erik Forsberg, Ralf Hartings
  • High Voltage Bushing and High Voltage Device Comprising Such Bushing
    Publication number: 20090000806
    Abstract: A high voltage bushing for a high voltage device containing insulating liquid includes a voltage grading shield, improving performance and facilitating manufacturing.
    Type: Application
    Filed: December 22, 2006
    Publication date: January 1, 2009
    Applicant: ABB Technology Ltd.
    Inventors: Ralf Hartings, Bjorn Jacobson, Olof Heyman, Dan G. Gustavsson, Rutger Johansson