Patents by Inventor Franz Gramsamer

Franz Gramsamer 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: 11095203
    Abstract: In a high-frequency line filter for a converter, the converter has three phase connections for receiving a three-phase alternating signal from a three-phase voltage network and is adapted to convert the received three-phase alternating signal into an output signal for a load. The high-frequency line filter includes: a first filter path for establishing a conductive connection between a first phase connection of the three phase connections and a ground connection; a second filter path for establishing a conductive connection between a second phase connection of the three phase connections and the ground connection; and a third filter path for establishing a conductive connection between a third phase connection of the three phase connections and the ground connection. The high-frequency line filter includes a series connection of a pulse-proof capacitor and a parallel connection of at least two Y capacitors, the series connection being provided in each filter path.
    Type: Grant
    Filed: May 14, 2020
    Date of Patent: August 17, 2021
    Assignee: DR. JOHANNES HEIDENHAIN GmbH
    Inventors: Simon Heinrich, Franz Gramsamer
  • Publication number: 20200366185
    Abstract: In a high-frequency line filter for a converter, the converter has three phase connections for receiving a three-phase alternating signal from a three-phase voltage network and is adapted to convert the received three-phase alternating signal into an output signal for a load. The high-frequency line filter includes: a first filter path for establishing a conductive connection between a first phase connection of the three phase connections and a ground connection; a second filter path for establishing a conductive connection between a second phase connection of the three phase connections and the ground connection; and a third filter path for establishing a conductive connection between a third phase connection of the three phase connections and the ground connection. The high-frequency line filter includes a series connection of a pulse-proof capacitor and a parallel connection of at least two Y capacitors, the series connection being provided in each filter path.
    Type: Application
    Filed: May 14, 2020
    Publication date: November 19, 2020
    Applicant: DR. JOHANNES HEIDENHAIN GmbH
    Inventors: Simon HEINRICH, Franz GRAMSAMER
  • Patent number: 6929396
    Abstract: A system for monitoring the temperature prevailing in the stator unit of an electric drive includes a temperature sensor that is integrated into the windings of the stator unit and that transmits a temperature-dependent sensor signal. The sensor signal may be injected via an electrical transmitter unit into the signal processing unit of a position measuring device connected to the drive.
    Type: Grant
    Filed: October 22, 2003
    Date of Patent: August 16, 2005
    Assignee: Johannes Heidenhain GmbH
    Inventors: Franz Gramsamer, Erwin Bratzdrum, Robert Wastlhuber, Udo Ollert
  • Publication number: 20040091017
    Abstract: A system for monitoring the temperature prevailing in the stator unit of an electric drive includes a temperature sensor that is integrated into the windings of the stator unit and that transmits a temperature-dependent sensor signal. The sensor signal may be injected via an electrical transmitter unit into the signal processing unit of a position measuring device connected to the drive.
    Type: Application
    Filed: October 22, 2003
    Publication date: May 13, 2004
    Inventors: Franz Gramsamer, Erwin Bratzdrum, Robert Wastlhuber, Udo Ollert