Patents by Inventor Enea R. Pividor

Enea R. Pividor 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).

  • Non-rotating stabilizer for raise boring
    Patent number: 4301876
    Abstract: A non-rotating stabilizer for raise boring having a diameter substantially equal to the raise head and which is positioned below the raise head so as to follow it as the hole is bored is disclosed. A second raise head having a larger diameter than the stabilizer may be positioned below the stabilizer.
    Type: Grant
    Filed: August 24, 1979
    Date of Patent: November 24, 1981
    Assignee: Smith International, Inc.
    Inventors: Simon J. Harrison, Enea R. Pividor