Patents by Inventor ANGELIKA HARTMANN

ANGELIKA HARTMANN 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).

  • Ceramic insulator for vacuum interrupters
    Patent number: 10840044
    Abstract: A ceramic insulator for vacuum interrupters extends along a longitudinal extent and forms a cavity in said longitudinal extent. The cavity has a first opening on a first end of the longitudinal extent and a second opening on a second end of the longitudinal extent. The openings are designed so that they can be sealed in a gas-tight manner using appropriate connections. The sealed first opening is designed to guide at least one fixed contact into the cavity, and the sealed second opening is designed to guide at least one moving contact into the cavity. The ceramic insulator has, on an inner face of the cavity, one or multiple electrically conductive discharge path interrupters extending perpendicularly to the longitudinal extent of the ceramic insulator.
    Type: Grant
    Filed: July 13, 2017
    Date of Patent: November 17, 2020
    Assignee: Siemens Aktiengesellschaft
    Inventors: Frank Graskowski, Angelika Hartmann, Sylvio Kosse, Andreas Lawall
  • Ceramic Insulator For Vacuum Interrupters
    Publication number: 20190172667
    Abstract: A ceramic insulator for vacuum interrupters extends along a longitudinal extent and forms a cavity in said longitudinal extent. The cavity has a first opening on a first end of the longitudinal extent and a second opening on a second end of the longitudinal extent. The openings are designed so that they can be sealed in a gas-tight manner using appropriate connections. The sealed first opening is designed to guide at least one fixed contact into the cavity, and the sealed second opening is designed to guide at least one moving contact into the cavity. The ceramic insulator has, on an inner face of the cavity, one or multiple electrically conductive discharge path interrupters extending perpendicularly to the longitudinal extent of the ceramic insulator.
    Type: Application
    Filed: July 13, 2017
    Publication date: June 6, 2019
    Inventors: FRANK GRASKOWSKI, ANGELIKA HARTMANN, SYLVIO KOSSE, ANDREAS LAWALL