Patents by Inventor Walter Wilhelm

Walter Wilhelm 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: 4733206
    Abstract: A connector plug has an integrated electrical radio frequency (RF) suppression filter comprising a metallic filter housing which is slipped over the connector plug and electrically contacted to a ground conductor which extends from one end of the device to the other. The ground conductor is designed with a broad surface and is preferably in the form of a cross-shaped member in a central region and having ends connected to the terminal elements of Y-capacitors of the RF filter. The ground conductor is separated from the electrical filter components by an insulating lamina and the overall arrangement is encapsulated with plastic to form the plug prior to receiving the metallic housing thereover.
    Type: Grant
    Filed: August 5, 1985
    Date of Patent: March 22, 1988
    Assignee: Siemens Aktiengesellschaft
    Inventors: Josef Dirmeyer, Heinz Kathmann, Franz Merkle, Franz Oberberger, Walter Wilhelm, Josef Wimmer
  • Patent number: 4700157
    Abstract: A connector plug has an electrical radio frequency suppression filter comprising a metallic filter housing partially slipped onto the plug, the filter having electrical filter components, particularly inductances and capacitances, disposed within the filter housing, embedded in a casting compound, partially connected to the device plug leads at the power supply side and partially connected to the leads facing the device to be energized, whereby the device-side leads, particularly tabs, extend out of the open end face of the filter housing facing away from the plug and a broad surface protective conductor is connected to the filter housing in an electrically conductive manner. The protective conductor is preferably designed as a cross-shaped protective conductor within the filter housing and whose one ends are connected to terminals of Y-capacitors. The cross-shaped protective conductor and the electrical filter components are thereby located at opposite sides of an insulating lamina.
    Type: Grant
    Filed: August 5, 1985
    Date of Patent: October 13, 1987
    Assignee: Siemens Aktiengesellschaft
    Inventors: Josef Dirmeyer, Heinz Kathmann, Franz Merkle, Franz Oberberger, Walter Wilhelm, Josef Wimmer