Patents by Inventor James E. Elam

James E. Elam 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).

  • Cold headed center vacuum drill bit
    Patent number: 5452628
    Abstract: A drill bit for drilling holes in a work surface including a hard wear-resistant insert and a metal body including a top working surface of an irregular surface configuration having a slot for retaining the hard wear-resistant insert. The body having a metal grain structure substantially parallel with the contour of the body. In a preferred embodiment the body is formed by cold-heading.
    Type: Grant
    Filed: February 25, 1994
    Date of Patent: September 26, 1995
    Assignee: Kennametal Inc.
    Inventors: Robert H. Montgomery, Jr., Daniel C. Sheirer, James E. Elam, Paul E. Ewing
  • Cold headed center vacuum drill bit
    Patent number: 5297643
    Abstract: A drill bit for drilling holes in a work surface including a hard wear-resistant insert and a metal body including a top working surface of an irregular surface configuration having a slot for retaining the hard wear-resistant insert. The body having a metal grain structure substantially parallel with the contour of the body. In a preferred embodiment the body is formed by cold-heading.
    Type: Grant
    Filed: November 12, 1991
    Date of Patent: March 29, 1994
    Assignees: Kennametal Inc., NSS Industries
    Inventors: Robert H. Montgomery, Jr., Daniel C. Sheirer, James E. Elam, Paul E. Ewing