Patents by Inventor Daniel E. Kroes

Daniel E. Kroes 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).

  • Patent number: 9696197
    Abstract: An automatic surface elevation table (Auto SET) for measuring ground surface movements and land surface subsidence. The Auto SET includes a free-floating foot resting on a sediment surface. A benchmark rod passes through a center of the free-floating foot, and is driven into the sediment surface and extends above the sediment surface. A water level recorder system is attached to the benchmark rod. The water level recorder system includes a water level recorder attached to a top of the benchmark rod, a double block pulley system having an upper end connected to the water level recorder and a lower end connected to the free-floating foot, and a counterweight attached to the upper end of the double block pulley system. The water level recorder system measures movement of the free-floating foot to determine ground surface movements.
    Type: Grant
    Filed: October 14, 2014
    Date of Patent: July 4, 2017
    Assignee: The United States of America as Represented by the Secretary of the Department of the Interior
    Inventor: Daniel E. Kroes