Patents by Inventor Wolf-Dieter Gundel

Wolf-Dieter Gundel 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).

  • Tubular ceramic body for gas passages in cylinder head of internal combustion engine
    Patent number: 4840154
    Abstract: A tubular ceramic body for gas passages in a cylinder head of an internal combustion engine comprises a tubular piece having an opening, two separate tubular portions each having an end side and provided with an opening at the end side, the tubular portions merging into the tubular piece in a transition region, and a connection provided between the tubular portions at least in the transition region of the tubular portions into the tubular piece, the ceramic body being formed as a one-piece member produced in a single sintering process from a single material, and the connection of the tubular portions being formed by a common wall.
    Type: Grant
    Filed: February 8, 1988
    Date of Patent: June 20, 1989
    Assignee: Feldmuhle Aktiengesellschaft
    Inventors: Dieter Fingerle, Wolf-Dieter Gundel