Patents by Inventor Ralph A. Supelak

Ralph A. Supelak 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).

  • METHOD AND APPARATUS FOR REDUCING NOX EMISSIONS IN ROTARY KILNS BY SNCR
    Publication number: 20120315590
    Abstract: A method of operating a mineral processing kiln includes introducing a quantity of a selective non-catalytic reduction (SNCR) reducing agent into the kiln. The SNCR reducing agent may be a solid, liquid, or a gas. A mineral processing kiln modified for the implementation of SNCR is also disclosed.
    Type: Application
    Filed: June 10, 2011
    Publication date: December 13, 2012
    Inventors: Eric R. Hansen, Kenneth J. Derksen, Kevin Blankenship, Walter Parker, Ralph A. Supelak, James R. Tutt
  • Method of mixing high temperature gases in mineral processing kilns
    Patent number: 8267685
    Abstract: A method is described for reducing NOx emissions and improving energy efficiency during mineral processing in a rotary kiln. The method comprises injection of air with high velocity/high kinetic energy into the kiln to reduce or eliminate stratification of kiln gases. The method can be applied to mix gases in a rotary kiln vessel or in a preheater/precalciner vessel.
    Type: Grant
    Filed: January 26, 2009
    Date of Patent: September 18, 2012
    Assignees: Cadence Environment Energy, Inc., Ash Grove Cement Company
    Inventors: Eric R. Hansen, Ralph A. Supelak, James R. Tutt, Peter F. Way
  • Method and apparatus for reducing NOemissions in rotary kilns by SNCR
    Patent number: 7959435
    Abstract: A method of operating a mineral processing kiln includes introducing a quantity of a selective non-catalytic reduction (SNCR) reducing agent into the kiln. The SNCR reducing agent may be a solid, liquid, or a gas. A mineral processing kiln modified for the implementation of SNCR is also disclosed.
    Type: Grant
    Filed: January 9, 2007
    Date of Patent: June 14, 2011
    Assignees: Cadence Environmental Energy, Inc., Ash Grove Cement Company
    Inventors: Eric R. Hansen, Kenneth J. Derksen, Kevin Blankenship, Walter Parker, Ralph A. Supelak, James R. Tutt
  • METHOD OF MIXING HIGH TEMPERATURE GASES IN MINERAL PROCESSING KILNS
    Publication number: 20090191498
    Abstract: A method is described for reducing NOx emissions and improving energy efficiency during mineral processing in a rotary kiln. The method comprises injection of air with high velocity/high kinetic energy into the kiln to reduce or eliminate stratification of kiln gases. The method can be applied to mix gases in a rotary kiln vessel or in a preheater/precalciner vessel.
    Type: Application
    Filed: January 26, 2009
    Publication date: July 30, 2009
    Inventors: Eric R. Hansen, Ralph A. Supelak, James R. Tutt, Peter F. Way
  • METHOD OF MIXING HIGH TEMPERATURE GASES IN MINERAL PROCESSING KILNS
    Publication number: 20090191497
    Abstract: A method is described for reducing NOx emissions and improving energy efficiency during mineral processing in a rotary kiln. The method comprises injection of air with high velocity/high kinetic energy into the kiln to reduce or eliminate stratification of kiln gases. The method can be applied to mix gases in a rotary kiln vessel or in a preheater/precalciner vessel.
    Type: Application
    Filed: January 26, 2009
    Publication date: July 30, 2009
    Inventors: Eric R. Hansen, Ralph A. Supelak, James R. Tutt
  • Methods of mixing high temperature gases in mineral processing kilns
    Patent number: 7488172
    Abstract: A method is described for reducing NOx emissions and improving energy efficiency during mineral processing in a rotary kiln. The method comprises injection of air with high velocity/high kinetic energy into the kiln to reduce or eliminate stratification of kiln gases. The method can be applied to mix gases in a rotary kiln vessel or in a preheater/precalciner vessel.
    Type: Grant
    Filed: May 7, 2007
    Date of Patent: February 10, 2009
    Assignees: Cadence Environmental Energy, Inc., Ash Grove Cement Company
    Inventors: Eric R. Hansen, Ralph A. Supelak, James R. Tutt
  • METHOD AND APPARATUS FOR REDUCING NOx EMISSIONS IN ROTARY KILNS BY SNCR
    Publication number: 20080070177
    Abstract: A method of operating a mineral processing kiln includes introducing a quantity of a selective non-catalytic reduction (SNCR) reducing agent into the kiln. The SNCR reducing agent may be a solid, liquid, or a gas. A mineral processing kiln modified for the implementation of SNCR is also disclosed.
    Type: Application
    Filed: January 9, 2007
    Publication date: March 20, 2008
    Inventors: Eric Hansen, Kenneth Derksen, Kevin Blankenship, Walter Parker, Ralph Supelak, James Tutt
  • METHOD OF MIXING HIGH TEMPERATURE GASES IN MINERAL PROCESSING KILNS
    Publication number: 20070207432
    Abstract: A method is described for reducing NOx emissions and improving energy efficiency during mineral processing in a rotary kiln. The method comprises injection of air with high velocity/high kinetic energy into the kiln to reduce or eliminate stratification of kiln gases. The method can be applied to mix gases in a rotary kiln vessel or in a preheater/precalciner vessel.
    Type: Application
    Filed: May 7, 2007
    Publication date: September 6, 2007
    Inventors: Eric Hansen, Ralph Supelak, James Tutt
  • Method of mixing high temperature gases in mineral processing kilns
    Patent number: 7229281
    Abstract: A method is described for reducing NOx emissions and improving energy efficiency during mineral processing in a rotary kiln. The method comprises injection of air with high velocity/high kinetic energy into the kiln to reduce or eliminate stratification of kiln gases. The method can be applied to mix gases in a rotary kiln vessel or in a preheater/precalciner vessel.
    Type: Grant
    Filed: May 25, 2005
    Date of Patent: June 12, 2007
    Assignees: Cadence Environmental Energy, Inc., Ash Grove Cement Company
    Inventors: Eric R. Hansen, Ralph A. Supelak, James R. Tutt
  • Method of mixing high temperature gases in mineral processing kilns
    Publication number: 20050277081
    Abstract: A method is described for reducing NOx emissions and improving energy efficiency during mineral processing in a rotary kiln. The method comprises injection of air with high velocity/high kinetic energy into the kiln to reduce or eliminate stratification of kiln gases. The method can be applied to mix gases in a rotary kiln vessel or in a preheater/precalciner vessel.
    Type: Application
    Filed: May 25, 2005
    Publication date: December 15, 2005
    Inventors: Eric Hansen, Ralph Supelak, James Tutt
  • Method of mixing high temperature gases in mineral processing kilns
    Publication number: 20040115582
    Abstract: A method is described for reducing NOx emissions and improving energy efficiency during mineral processing in a rotary kiln. The method comprises injection of air with high velocity/high kinetic energy into the kiln to reduce or eliminate stratification of kiln gases. The method can be applied to mix gases in a rotary kiln vessel or in a preheater/precalciner vessel.
    Type: Application
    Filed: November 21, 2003
    Publication date: June 17, 2004
    Inventors: Eric R. Hansen, Ralph A. Supelak, James R. Tutt, Peter F. Way
  • Method of mixing high temperature gases in mineral processing kilns
    Patent number: 6672865
    Abstract: A method is described for reducing NOx emissions and improving energy efficiency during mineral processing in a rotary kiln. The method comprises injection of air with high velocity/high kinetic energy into the kiln to reduce or eliminate stratification of kiln gases. The method can be applied to mix gases in a rotary kiln vessel or in a preheater/precalciner vessel.
    Type: Grant
    Filed: September 11, 2001
    Date of Patent: January 6, 2004
    Assignees: Cadence Enviromental Energy, Inc., Ash Grove Cement Company
    Inventors: Eric R. Hansen, Ralph A. Supelak, James R. Tutt, Peter F. Way
  • Method of mixing high temperature gases in mineral processing kilns
    Publication number: 20020086258
    Abstract: A method is described for reducing NOx emissions and improving energy efficiency during mineral processing in a rotary kiln. The method comprises injection of air with high velocity/high kinetic energy into the kiln to reduce or eliminate stratification of kiln gases. The method can be applied to mix gases in a rotary kiln vessel or in a preheater/precalciner vessel.
    Type: Application
    Filed: September 11, 2001
    Publication date: July 4, 2002
    Inventors: Eric R. Hansen, Ralph A. Supelak, James R. Tutt, Peter F. Way
  • Portable agitator for fluidizing bottom solids in tanks
    Patent number: 5366289
    Abstract: A portable agitator is provided for fluidizing contents of a tank car that has settled during shipment. The agitator includes a column that can extend into a tank car through a manway, a wedging assembly for holding the column in place in the tank between the manway and the bottom wall of the tank, and a pivotable impeller platform appended to a distal end of the column. A pair of impellers are mounted on opposite ends of the impeller platform and are operable to stir and fluidize the contents of the tank car.
    Type: Grant
    Filed: December 6, 1994
    Date of Patent: November 22, 1994
    Assignees: Cadence Environmental Energy, Inc., Ash Grove Cement Company
    Inventor: Ralph A. Supelak
  • Portable agitator for fluidizing bottom solids in tanks
    Patent number: 5282681
    Abstract: A portable agitator is provided for fluidizing contents of a tank car that has settled during shipment. The agitator includes a column that can extend into a tank car through a manway, a wedging assembly for holding the column in place in the tank between the manway and the bottom wall of the tank, and a pivotable impeller platform appended to a distal end of the column. A pair of impellers are mounted on opposite ends of the impeller platform and are operable to stir and fluidize the contents of the tank car.
    Type: Grant
    Filed: July 29, 1992
    Date of Patent: February 1, 1994
    Assignees: Cadence Environmental Energy, Inc., Ash Grove Cement Company
    Inventor: Ralph A. Supelak