Patents by Inventor Jim Base

Jim Base 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).

  • Cable seal unit for earth-boring drill strings
    Patent number: 4062551
    Abstract: The unit comprises a hollow cylindrical shell in the wall of which is formed an aperture through which an electrical cable passes. The cable thus passes from the ground surface on the outside of the drill string, but enters into the interior of the drill string through the aperture and continues to the bottom of the drill string inside the drill string. The aperture around the cable is sealed to withstand the high pressures present in the interior of the drill string.
    Type: Grant
    Filed: December 5, 1975
    Date of Patent: December 13, 1977
    Inventor: Jim Base