Patents by Inventor Johan M. Gunther

Johan M. Gunther 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).

  • In-situ pilings with consistent properties from top to bottom and minimal voids
    Patent number: 7341405
    Abstract: A method to make an in-situ piling in which a dry binder and water are injected into the situs of an intended piling. A rotary tool is inserted into the soil which as it descends into the situs and exits it, mixes the soil, binder and soil along with the air used to inject the binder, reducing the size of binder particles and rendering the resulting mixture sufficiently fluid that much of the air can percolate from it. The water is supplied in such amount as to reduce the unit strength of the ultimate cured piling, but sufficiently strong and reliably consistent in its physical properties.
    Type: Grant
    Filed: February 13, 2006
    Date of Patent: March 11, 2008
    Inventor: Johan M. Gunther
  • Apparatus and method to prepare in-situ pilings with per-selected physical properties
    Patent number: 7192220
    Abstract: Method and apparatus to produce in-situ pilings, controllably injecting binder and water into soil formation in which the piling is to be formed, the quantities of water and binder being respective to strength demands for the piling, and to demand for water to supplement existing water to react (hydrate) with the binder.
    Type: Grant
    Filed: September 19, 2003
    Date of Patent: March 20, 2007
    Inventor: Johan M. Gunther
  • Process to prepare in-situ pilings in clay soil
    Patent number: 7090436
    Abstract: A method of forming in-situ pilings in clay soil. An auger stirrer is rotatably and axially forced into the ground. Water, dry binder (cement/or lime), and air are injected to lubricate the tool, and liquify the mix of clay soil, binder and air to form a uniform structure, most of the air percolating from the mix before it hardens.
    Type: Grant
    Filed: July 26, 2004
    Date of Patent: August 15, 2006
    Inventor: Johan M. Gunther
  • Method to form in-situ pilings with diameters that can differ from axial station to axial station
    Patent number: 6685398
    Abstract: A process to make in-situ pilings comprised of soil, cement, lime and water, the pilings being bodies of revolution formed by rotating a mixer-cutter blade whose cutting diameter is selectably adjustable, preferably on a running basis so as to have the capability of producing piling with a diameter that differs from station to station.
    Type: Grant
    Filed: October 18, 2002
    Date of Patent: February 3, 2004
    Inventor: Johan M. Gunther
  • Lime/cement columnar stabilization of soils
    Patent number: 5967700
    Abstract: A method to provide a stoichiometric mixture of water, lime and cement for making an in-site piling. Water to supplement existing ground water is supplied by an augur as it drills into the ground so that a substantially uniform concentration of water exists for the full depth. Then the augur, while turning, returns to the surface while it injects and stirs into the wet soil the stoichiometric amounts of lime and cement.
    Type: Grant
    Filed: December 4, 1995
    Date of Patent: October 19, 1999
    Inventor: Johan M. Gunther