Patents Assigned to Fundamentum B.V.
  • Rotatable drill pipe having an auger on a free end thereof
    Patent number: 5803184
    Abstract: Method and device for introducing a pipe into the ground. In order to restrict the drive power necessary to the greatest possible extent and to optimize the diameter of the pipe, it is proposed that the soil surrounding the pipe is displaced in the radial direction. To this end the pipe is provided with one or more displacement elements.
    Type: Grant
    Filed: April 25, 1996
    Date of Patent: September 8, 1998
    Assignee: Fundamentum B.V.
    Inventor: Adriaan Van der Wouden