Patents by Inventor Hans Gugger

Hans Gugger 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).

  • Drill rig mast structure
    Patent number: 4465144
    Abstract: The invention relates to a mobile drilling rig providing a rotation head which is small enough to fit between the mast members of the rig. Arrangements are made to pivot back the rotation head to give access to the drill line of the rig. The mast members can be pivotted on a frame to place them into the drilling and travelling position respectively.
    Type: Grant
    Filed: February 22, 1983
    Date of Patent: August 14, 1984
    Assignee: Warman International Limited
    Inventors: Hans Gugger, John Ackland
  • Drill rig
    Patent number: 4393944
    Abstract: The invention relates to a mobile drilling rig providing a rotation head which is small enough to fit between the mast members of the rig. Arrangements are made to pivot back the rotation head to give access to the drill line of the rig. The mast members can be pivotted on a frame to place them into the drilling and travelling position respectively.
    Type: Grant
    Filed: September 11, 1980
    Date of Patent: July 19, 1983
    Assignee: Warman International Limited
    Inventors: Hans Gugger, John Ackland