Patents by Inventor Raphael M. Bojarczuk

Raphael M. Bojarczuk 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).

  • Hybrid gasket
    Patent number: 6092811
    Abstract: A hybrid gasket includes a core defining an aperture therein, the core having an outer edge portion and an inner edge portion immediately surrounding the aperture. The gasket further includes a chemically resistant material encapsulating the inner edge portion, and an expanded graphite material encapsulating the outer edge portion. A method of sealing two substantially parallel surfaces includes the steps of interposing between the surfaces a gasket, and securing the surfaces to one another. The gasket including a core defining an aperture therein, the core having an outer edge portion and an inner edge portion immediately surrounding the aperture. The gasket further including a chemically resistant material encapsulating the inner edge portion and an expanded graphite material encapsulating the outer edge portion.
    Type: Grant
    Filed: September 23, 1997
    Date of Patent: July 25, 2000
    Assignees: Jamco Products, LLC, Exxon Research and Engineering Co.
    Inventors: Raphael M. Bojarczuk, Roger Dean Paulson