Patents by Inventor Terence Zelenka

Terence Zelenka 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).

  • Selectively compressed expanded graphite gasket and method of making same
    Patent number: 4705278
    Abstract: A laminated expanded graphite gasket, such as an automotive head gasket, comprising a core and compressed expanded graphite facings and defining clear-through openings. A thin metallic layer is positioned on the graphite facing over less than 75% of the area of the facing for at least partial embeddment therein to enhance sealing stress in the covered portions, to improve impingment resistance of the gasket, and to improve other properties of expanded graphite gaskets.
    Type: Grant
    Filed: September 29, 1986
    Date of Patent: November 10, 1987
    Assignee: Fel-Pro Incorporated
    Inventors: Robert F. Locacius, Terence Zelenka