Patents by Inventor Fredericus F. M. Muller

Fredericus F. M. Muller 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).

  • Winding system for air-cooled transformers
    Patent number: 4663603
    Abstract: A winding system for gas-cooled transformers, comprising windings disposed around a core; and at least one insulation torus, consisting of an insulating mass, said torus having embedded therein electrodes electrically connected to an adjoining winding for suppression of the electric field intensity between sinding and electrodes. The winding connected to the electrodes is divided into separate winding sections across the height of the winding, and each of these sections is connected to one electrode.
    Type: Grant
    Filed: December 12, 1985
    Date of Patent: May 5, 1987
    Assignee: Holec Systemen en Componenten B.V.
    Inventors: Gerardus A. van Riemsdijk, Fredericus F. M. Muller