Patents by Inventor Maurice E. Metcalf

Maurice E. Metcalf 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: 4605234
    Abstract: A mechanical seal assembly for use with a rotatable shaft passing through a housing wherein the assembly includes a flowable material filled ring member acting in cooperation with a stationary sealing member and a sealing member positioned around the shaft to maintain the sealing members in fluid-tight sealing relationship with each other.
    Type: Grant
    Filed: December 16, 1985
    Date of Patent: August 12, 1986
    Inventor: Maurice E. Metcalf