Patents by Inventor Ute Touchy

Ute Touchy 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).

  • Highpass filter of a filter arrangement for a three-phase network connected to converters
    Patent number: 4743873
    Abstract: For reducing the amount of circuitry and losses in double highpasses for filter arrangements in networks with a high voltage level, the two resonance frequencies and Q-factors of the double highpass are tuned so that in a critical harmonic range, at most a harmless slight resonance peak can occur, for which purpose a series capacitor together with a series choke are connected in series with a shunt circuit grounded, in the case of high voltage and ungrounded in the case of medium voltage, of ohmic, inductive and capacitive circuit elements connected to the network.
    Type: Grant
    Filed: October 15, 1986
    Date of Patent: May 10, 1988
    Assignee: Siemens Aktiengesellschaft
    Inventors: Walter Schultz, Ute Touchy, Kurt Kruger