Patents by Inventor Ulf KOEHLER

Ulf KOEHLER 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).

  • Device and method for soil compaction and/or soil stabilization
    Patent number: 9062431
    Abstract: A device for compaction is provided that includes a compaction tool and a vibration device. The compaction tool is adapted to be lowered vertically into a soil area to be compacted. The vibration device being configured to be placed at an upper end on the compaction tool. The compaction tool being moveable only in the vertical direction by the vibration device. The compaction tool at its bottom end has a tool head on which at least one ripping tool is arranged, which is pivotable around a horizontal pivot axis into a first position and into a second position. In the first position, the at least one ripping tool is oriented substantially parallel to the compaction tool and in the second position is oriented substantially radially to the compaction tool and radially projects beyond a diameter of the tool head.
    Type: Grant
    Filed: December 20, 2013
    Date of Patent: June 23, 2015
    Inventors: Ulf Koehler, Joerg Gnauert
  • DEVICE AND METHOD FOR SOIL COMPACTION AND/OR SOIL STABILIZATION
    Publication number: 20140178132
    Abstract: A device for compaction is provided that includes a compaction tool and a vibration device. The compaction tool is adapted to be lowered vertically into a soil area to be compacted. The vibration device being configured to be placed at an upper end on the compaction tool. The compaction tool being moveable only in the vertical direction by the vibration device. The compaction tool at its bottom end has a tool head on which at least one ripping tool is arranged, which is pivotable around a horizontal pivot axis into a first position and into a second position. In the first position, the at least one ripping tool is oriented substantially parallel to the compaction tool and in the second position is oriented substantially radially to the compaction tool and radially projects beyond a diameter of the tool head.
    Type: Application
    Filed: December 20, 2013
    Publication date: June 26, 2014
    Inventors: Ulf KOEHLER, Joerg GNAUERT