Patents by Inventor David W. Brandes

David W. Brandes 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).

  • Shielded spark plug electrode
    Patent number: 6198209
    Abstract: A spark plug assembly for an internal combustion engine has a housing, an electrode, an axis and a conducting member radially oriented relative to the axis has a collar disposed about the axis and connected to an end of the housing. The spark plug is connected to the engine and exposed to a combustion chamber of the engine. The collar extends a predetermined distance from the end of the housing and shields a gap between the conducting member and electrode from air swirl introduced into a combustion chamber.
    Type: Grant
    Filed: September 25, 1998
    Date of Patent: March 6, 2001
    Assignee: Caterpillar Inc.
    Inventors: Darryl D. Baldwin, David W. Brandes, Richard P. Staab