Patents by Inventor Pleun Van Der Sman

Pleun Van Der Sman 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).

  • Steerable soil penetration system
    Publication number: 20050161261
    Abstract: A steerable soil penetration system having a steerable penetration head, which compacts and does not cut away the surrounding soil and which is connected to an elongate flexible tubing such that the orientation of the penetration head can be varied relative to the tubing. The elongate tubing and/or a downhole hammer or tractor pushes the penetration head through the subsurface formation. Preferably the tubing is surrounded by a narrow annulus so that buckling of the tubing is inhibited and the tubing protects the pierced hole against caving in.
    Type: Application
    Filed: March 7, 2003
    Publication date: July 28, 2005
    Inventors: Michael Betts, Josef Guillaume Coenen, Pieter Kapteijn, Peter Oosterling, Paul Schilte, Pleun Van Der Sman, Gustaaf Van Wechem