Patents by Inventor Walter D. McVicar

Walter D. McVicar 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).

  • Core plug
    Patent number: 4460087
    Abstract: A solid core plug formed from wood, plastic, or a composite molded wood material having a substantially cylindrical shape with a body portion and an integral tapered forward portion. The core plug may include a single, tapered ridge element on the outer surface of the body portion for accomodating cores having varying internal diameters within a given nominal size; a core plug removal opening located at its outer surface for increased strength; and, an integral ramp surface and recessed area in the end thereof for accomodating a curved bar removal tool.
    Type: Grant
    Filed: September 30, 1982
    Date of Patent: July 17, 1984
    Assignee: Westvaco Corporation
    Inventors: Richard E. DeMarco, David Hopkins, Walter D. McVicar