Patents by Inventor Gerald Lund, Jr.

Gerald Lund, Jr. 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).

  • Rock drill bit
    Patent number: 5029657
    Abstract: A rock drill bit for continuous drilling through overburden and rock has a body with end and side surfaces. The drill bit is constructed for rotation in a predetermined direction. The body defines a conduit for compressed air which terminates at a port in the side surface of the body. The port is disposed to open in a direction facing generally away from the predetermined direction of rotation of the drill bit.
    Type: Grant
    Filed: November 14, 1989
    Date of Patent: July 9, 1991
    Inventors: Arthur Mahar, Gerald Lund, Jr.